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hightlight
Hightlights {#622
  -id: 64
  -titre: "Contemporary Outcomes With Mitraclip™ (NTR/XTR) System In Primary Mitral / Mavacamten Improves Biomarkers Of Myocardial Wall Stress And Injury In Patients With Symptomatic Non-Obstructive  Hypertrophic Cardiomyopathy (nHCM), (Dr Imtinene ben Mrad )"
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  -description: """
    <p style="text-align:justify">* <em><strong>Contemporary Outcomes with MitraClip&trade; (NTR/XTR) System in Primary Mitral Regurgitation: Results from the Global EXPAND Study&nbsp;<br />\r\n
    R&eacute;sultats actuels des dispositifs MitraClip NTR/XTR dans l&rsquo;insuffisance mitrale primitive : Etude GLOBAL EXPAND.&nbsp;</strong></em></p>\r\n
    \r\n
    <p style="text-align:justify">&nbsp;</p>\r\n
    \r\n
    <p style="text-align:justify"><br />\r\n
    <strong>OBJECTIF</strong><br />\r\n
    Les objectifs de l&rsquo;&eacute;tude &eacute;taient d&rsquo;&eacute;valuer, dans la pratique courante&nbsp;; la s&eacute;curit&eacute; et l&rsquo;efficacit&eacute; de l&rsquo;emploi des dispositifs MitraClip NTR et XTR, dans le traitement de l&rsquo;IM primitive et l&rsquo;impact de la complexit&eacute; anatomique sur le degr&eacute; de r&eacute;duction la fuite.&nbsp;</p>\r\n
    \r\n
    <p style="text-align:justify"><br />\r\n
    <strong>METHODES</strong><br />\r\n
    Il s&rsquo;agit d&rsquo;une &eacute;tude observationnelle prospective multicentrique &agrave; simple bras conduite dans 60 centres, aux Etats-Unis, en Europe et au Moyen-Orient, ayant inclus des patients pr&eacute;sentant une IM primitive s&eacute;v&egrave;re (grade &ge; 3) symptomatique r&eacute;pondant aux crit&egrave;res &eacute;chocardiographiques de faisabilit&eacute; pour la r&eacute;paration percutan&eacute;e par MitraClip selon les recommandations approuv&eacute;es. &nbsp;Les patients participant &agrave; un autre essai en cours et pouvant impacter le suivi ou les r&eacute;sultats ont &eacute;t&eacute; exclus.&nbsp;<br />\r\n
    La s&eacute;v&eacute;rit&eacute; de la fuite mitrale a &eacute;t&eacute; &eacute;valu&eacute;e conform&eacute;ment aux crit&egrave;res recommand&eacute;s par la soci&eacute;t&eacute; am&eacute;ricaine d&rsquo;&eacute;chocardiographie, utilis&eacute;s pr&eacute;c&eacute;demment pour la s&eacute;lection des patients dans les essais EVEREST II et REALISM. Les examens ont tous &eacute;t&eacute; r&eacute;analys&eacute;s de fa&ccedil;on ind&eacute;pendante par deux laboratoires d&rsquo;&eacute;chocardiographie (CORE-lab) pour s&rsquo;assurer de la coh&eacute;rence des mesures ; l&rsquo;un &eacute;valuant l&#39;&eacute;tiologie et la s&eacute;v&eacute;rit&eacute; de l&#39;M et l&#39;autre les caract&eacute;ristiques anatomiques de la valve mitrale et les mesures ventriculaires gauches.<br />\r\n
    L&rsquo;anatomie &eacute;tait jug&eacute;e complexe quand il existait au moins un des crit&egrave;res suivants : une fuite p&eacute;riph&eacute;rique A1/P1 ou A3/P3, une fuite excentrique large, pr&eacute;sence d&rsquo;au moins 2 jets significatifs, des calcifications au niveau la zone de grasping, une surface valvulaire mitrale r&eacute;duite, des feuillets restrictifs, un &eacute;cart important entre les feuillets (flail gap) ou une largeur importante du prolapsus (flail width).<br />\r\n
    Le crit&egrave;re de jugement principal de s&eacute;curit&eacute; &eacute;tait la survenue de complications majeures d&eacute;finies par le d&eacute;c&egrave;s toute cause dans les 30 premiers jours du suivi, l&#39;infarctus du myocarde, l&#39;accident vasculaire c&eacute;r&eacute;bral ou une chirurgie urgente suite &agrave; une complication li&eacute;e &agrave; la mise en place du dispositif.&nbsp;<br />\r\n
    Les crit&egrave;res de jugement secondaires d&rsquo;efficacit&eacute; &eacute;taient : La r&eacute;duction de la fuite mitrale&le; grade 2, le statut fonctionnel (stade NYHA) et la qualit&eacute; de vie selon le questionnaire KCCQ.&nbsp;<br />\r\n
    Le succ&egrave;s imm&eacute;diat de la proc&eacute;dure &eacute;tait d&eacute;fini par l&rsquo;obtention d&rsquo;une IM r&eacute;siduelle &le; grade 2. Le suivi des patients &eacute;tait r&eacute;alis&eacute; &agrave; 1 mois, &agrave; 6 mois, et &agrave; 12 mois suivant l&rsquo;implantation du MitraClip.</p>\r\n
    \r\n
    <p style="text-align:justify"><br />\r\n
    <strong>RESULTATS</strong><br />\r\n
    La population globale d&#39;EXPAND comprenait 1041 patients cons&eacute;cutifs ayant une IM s&eacute;v&egrave;re primaire ou secondaire trait&eacute;es par le syst&egrave;me MitraClip, en pratique quotidienne, c&rsquo;est-&agrave;-dire en dehors des grands essais cliniques, entre avril 2018 et juin 2019. &nbsp;Huit cents trente-cinq patients avaient une imagerie de bonne qualit&eacute;. L&#39;analyse a port&eacute; sur les 422 patients qui avaient une IM primitive ou mixte de grade &ge;3+. Les patients &eacute;taient &acirc;g&eacute;s en moyenne de 79,5 ans (hommes : 52,1 %) ; ils avaient (selon les crit&egrave;res de la Society of Thoracic Surgery : STS score), en cas d&rsquo;intervention chirurgicale, un risque de d&eacute;c&egrave;s d&rsquo;environ 5,5% en cas de r&eacute;paration mitrale et de 7,3 % en cas de remplacement mitral. Les caract&eacute;ristiques de la population de l&rsquo;&eacute;tude sont pr&eacute;sent&eacute;es dans le tableau 1.&nbsp;<br />\r\n
    La majorit&eacute; des patients &eacute;tait symptomatique avec 9 % en stade NYHA IV, 64,1% en stade NYHA III, 21,6% en stade NYHA II et 4,8% en stade NYHA I.<br />\r\n
    Le pourcentage de patients ayant une IM s&eacute;v&egrave;re est pass&eacute; &agrave; 66,4% apr&egrave;s validation des examens par le core-lab. Ceci souligne les &eacute;ventuelles difficult&eacute;s rencontr&eacute;es pour l&rsquo;&eacute;valuation pr&eacute;cise de la s&eacute;v&eacute;rit&eacute; de l&rsquo;insuffisance mitrale et l&rsquo;importance d&rsquo;avoir un core lab. &nbsp;Pr&egrave;s d&#39;un tiers des patients avaient une anatomie valvulaire complexe, ce qui refl&egrave;te la diff&eacute;rence entre les patients trait&eacute;s dans le monde r&eacute;el et ceux des essais cliniques. &nbsp;Les donn&eacute;es &eacute;chographiques pr&eacute; proc&eacute;dure sont r&eacute;sum&eacute;es dans le tableau 2.<br />\r\n
    Le taux de r&eacute;ussite d&rsquo;implantation et de succ&egrave;s imm&eacute;diat de la proc&eacute;dure &eacute;tait respectivement de 99,5 % et de 94.5% avec un s&eacute;jour hospitalier moyen de 1 jour (1-3). Ces r&eacute;sultats sont comparables &agrave; ceux du registre am&eacute;ricain TVT Registry en termes de succ&egrave;s imm&eacute;diat (91.8%) mais nettement meilleurs que ceux des essais EVEREST II HRR et EVERST II REALISM (71.8%% et 84.8%% respectivement).&nbsp;<br />\r\n
    Les dur&eacute;es moyennes de proc&eacute;dure et de fluoroscopie &eacute;taient respectivement de 82 (53- 120) minutes et 18 (11,3-27) minutes, soit environ la moiti&eacute; de celles observ&eacute;es dans les autres &eacute;tudes. &nbsp;<br />\r\n
    Le MitraClip XTR a &eacute;t&eacute; utilis&eacute; chez 46,2 % (194) des patients, le NTR chez 34,8 % (146) et les deux chez 19% (80). Un clip &eacute;tait n&eacute;cessaire dans 52% des cas, deux dans 43 % des cas et trois ou plus dans 5 % des cas. Plus de clips XTR &eacute;taient utilis&eacute;s (seuls ou avec le NTR) chez les patients avec IM s&eacute;v&egrave;re.&nbsp;<br />\r\n
    &Agrave; 30 jours, il y a eu 10 d&eacute;c&egrave;s (2,4%), cinq accidents vasculaires c&eacute;r&eacute;braux (1,2%) et quatre (0,9%) conversions chirurgicales urgentes pour des complications li&eacute;es au MitraClip. Il n&#39;y a eu aucun infarctus du myocarde. &nbsp;Huit patients (1.9%) avaient un l&acirc;chage partiel de clip (single Leaflet attachement) et un (0,2%) une l&eacute;sion d&rsquo;un feuillet valvulaire (perforation ou d&eacute;chirure). Un tr&egrave;s faible taux de mortalit&eacute; et de complications majeures proc&eacute;durale ou &agrave; court terme.<br />\r\n
    &Agrave; 30 jours, le gradient moyen transvalvulaire est pass&eacute; de 2,51 &agrave; 3,51 mm Hg dans le groupe XTR seul, de 2,31 &agrave; 3,89 mm Hg dans le groupe NTR seul et de 2,71 &agrave; 3,99 mm Hg dans le groupe XTR / NTR (p=0,17) ; La diff&eacute;rence n&rsquo;&eacute;tait pas significative.<br />\r\n
    La r&eacute;gurgitation &eacute;tait minime ou absente dans 27,7% des cas,&nbsp;inf&eacute;rieure &agrave; 1 dans 86.6% des cas et &agrave; 2 dans 97,3% des cas. Dans le groupe avec IM s&eacute;v&egrave;re, la fuite r&eacute;siduelle &eacute;tait inf&eacute;rieure &agrave; 1 dans 82% des cas, ce taux est nettement sup&eacute;rieur &agrave; ceux observ&eacute;s dans les essais EVEREST II HRR et REALISM HR (48,6% et 54,9% respectivement). Le taux de fuite r&eacute;siduelle inf&eacute;rieure &agrave; 2 n&rsquo;&eacute;tait pas diff&eacute;rent entre les 2 groupes de patients avec et sans anatomie complexe (96,9% versus 97,2%), mais une r&eacute;duction plus importante de la fuite a &eacute;t&eacute; obtenue avec le XTR dans les anatomies complexes (p=0.0383). &nbsp;Ces r&eacute;sultats traduiraient Les am&eacute;liorations techniques apport&eacute;s par ces nouveaux MitraClip de 3&egrave;me g&eacute;n&eacute;ration.&nbsp;<br />\r\n
    A 30 jours, le remodelage ventriculaire gauche &eacute;tait favorable avec une diminution des diam&egrave;tres et des volumes ventriculaires gauches ainsi que des diam&egrave;tres de l&rsquo;anneau mitral : diminution du DTSVG de 35.2 mm &agrave; 33.2 mm (P&lt;0.0001) ; du DTDVG de 51.9 &agrave; 49,3 mm (P&lt;0.0001) ; du VTDVG de 120.6 ml &agrave; 110 ml (P&lt;0.0001) sans variation significative du VTSVG (47 &agrave; 44,7ml ; P=0.01).&nbsp;<br />\r\n
    Les patients ont eu une am&eacute;lioration significative de la classe fonctionnelle NYHA et de la qualit&eacute; de vie.&nbsp;<br />\r\n
    Les limites de cette &eacute;tude sont&nbsp;; le nombre non n&eacute;gligeable d&#39;&eacute;chocardiographie de r&eacute;f&eacute;rence non interpr&eacute;table, le tiers des patients avaient une IM &le; 2 alors qu&rsquo;elle &eacute;tait initialement jug&eacute;e s&eacute;v&egrave;re et les r&eacute;sultats n&rsquo;ont concern&eacute; que les suites proc&eacute;durales imm&eacute;diates.&nbsp;<br />\r\n
    Cette &eacute;tude est la premi&egrave;re &agrave; avoir rapport&eacute; les r&eacute;sultats de la r&eacute;paration mitrale par dispositifs MitraClip NTR et XTR de 3&egrave;me g&eacute;n&eacute;ration dans la pratique courante.</p>\r\n
    \r\n
    <p style="text-align:justify"><u><strong>Tableau 1</strong></u></p>\r\n
    \r\n
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    \t<tbody>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="vertical-align:top; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="font-size:12.0pt"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Caract&eacute;ristiques d&eacute;mographiques et comorbidit&eacute;s</span></span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="vertical-align:top; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="font-size:12.0pt"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">valeur</span></span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#ededed; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Age moyen (en ann&eacute;es)</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#ededed; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">79.5 &plusmn;9.4</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="vertical-align:top; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Sexe masculin</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="vertical-align:top; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">52.1% (220/422)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#ededed; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">IMC (Kg/m&sup2;)</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#ededed; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">25.2 &plusmn;4.8</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="vertical-align:top; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">STS score de remplacement valvulaire (%)</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="vertical-align:top; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">7.3 &plusmn;5.6</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#ededed; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">STS score de r&eacute;paration valvulaire (%)</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#ededed; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">5.5 &plusmn;5.4</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="vertical-align:top; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Diab&egrave;te</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="vertical-align:top; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">19.2% (80/416)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#ededed; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">HTA</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#ededed; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">79.5% (334/420)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="vertical-align:top; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Dyslipid&eacute;mie</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="vertical-align:top; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">52.5% (219/417)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#ededed; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Insuffisance r&eacute;nale</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#ededed; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">28.2% (119/422)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="vertical-align:top; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Arythmie cardiaque</span></span></span></strong></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Fibrillation atriale</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="vertical-align:top; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">60.5% (254/422)</span></span></span></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">92.5% (235/254)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#ededed; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Cardiopathie isch&eacute;mique </span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#ededed; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">13.5% (56/422)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="vertical-align:top; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Revascularisation coronarienne </span></span></span></strong></span></span></pre>\r\n
    \r\n
    \t\t\t<pre style="margin-left:47px">\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Pontage aorto coronaire </span></span></span></strong></span></span></pre>\r\n
    \r\n
    \t\t\t<pre style="margin-left:47px">\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Angioplastie coronaire</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="vertical-align:top; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">30,8% (130/422)</span></span></span></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">11,4% (48/422)</span></span></span></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">24,7% (104/422)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#ededed; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Ant&eacute;c&eacute;dent de r&eacute;paration valvulaire aortique chirurgicale ou percutan&eacute;e</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#ededed; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">8.8% (37/422)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="vertical-align:top; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Insuffisance cardiaque lors des 12 derniers mois </span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="vertical-align:top; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">43.2% (164/422)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#ededed; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Implant&eacute; de pacemaker</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#ededed; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">12.1% (51)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="vertical-align:top; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Implant&eacute; d&rsquo;un stimulateur de resynchronisation cardiaque </span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="vertical-align:top; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">15 (3,6%)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#ededed; height:4.0pt; width:11.0cm">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">Implant&eacute; d&rsquo;un d&eacute;fibrillateur automatique implantable</span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#ededed; height:4.0pt; width:141.25pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">25 (5,9%)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t</tbody>\r\n
    </table>\r\n
    \r\n
    <p style="text-align:justify"><u><strong>Tableau 2&nbsp;:</strong></u><strong> Param&egrave;tres &eacute;chographiques &eacute;valu&eacute;s par l&rsquo;Echo Core Lab (ECL)</strong><br />\r\n
    &nbsp;</p>\r\n
    \r\n
    <table align="left" cellspacing="0" class="MsoTable15Plain3" style="border-collapse:collapse; border:none; margin-left:6px; margin-right:6px; width:460.7pt">\r\n
    \t<tbody>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="vertical-align:top; width:267.95pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><em><span style="font-size:12.0pt"><span style="background-color:#f8f9fa"><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;"><span style="color:#222222">Param&egrave;tres Echocardiographiques</span></span></span></span></em></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="vertical-align:top; width:192.75pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="font-size:12.0pt"><span style="background-color:#f8f9fa"><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;"><span style="color:#222222">Moyenne (Nombre)</span></span></span></span></strong></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><strong><span style="font-size:12.0pt"><span style="background-color:#f8f9fa"><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;"><span style="color:#222222">Limites (Min&nbsp;; Max)</span></span></span></span></strong></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#f2f2f2; height:36.35pt; width:267.95pt">\r\n
    \t\t\t<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt">Surface effective de l&rsquo;orifice r&eacute;gurgitant ( EROA cm&sup2;)</span></span></span></p>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#f2f2f2; height:36.35pt; width:192.75pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">0.4</span></span></span> <span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">&plusmn; 0.21 (282)</span></span></span></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950"> (0.06&nbsp;; 1.52)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="height:35.25pt; vertical-align:top; width:267.95pt">\r\n
    \t\t\t<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt">Gradient moyen&nbsp;Transmitral (mmHg)</span></span></span></p>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="height:35.25pt; vertical-align:top; width:192.75pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">2.47 &plusmn; 1.36 (323)</span></span></span></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950"> (0.38&nbsp;; 10.89)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#f2f2f2; height:35.75pt; width:267.95pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="font-size:12.0pt"><span style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Fraction d&rsquo;&eacute;jection du VG ( FEVG %)</span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#f2f2f2; height:35.75pt; width:192.75pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">62 &plusmn; 10 (390)</span></span></span></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">(15.44&nbsp;; 81.63)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="height:41.9pt; vertical-align:top; width:267.95pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="font-size:12.0pt"><span style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Diam&egrave;tre t&eacute;l&eacute; systolique du VG ( DTSVG mm)</span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="height:41.9pt; vertical-align:top; width:192.75pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">35.4 &plusmn; 7.7 (401)</span></span></span></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">(20.9&nbsp;; 62.5)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#f2f2f2; height:42.5pt; width:267.95pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="font-size:12.0pt"><span style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Diam&egrave;tre t&eacute;l&eacute; diastolique du VG ( DTSVG mm)</span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#f2f2f2; height:42.5pt; width:192.75pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">52 &plusmn; 6.6 (403)</span></span></span></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">(35.6&nbsp;; 79.2)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="height:43.05pt; vertical-align:top; width:267.95pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="font-size:12.0pt"><span style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Volume t&eacute;l&eacute; systolique du VG ( VTSVG mm)</span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="height:43.05pt; vertical-align:top; width:192.75pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">47.9 &plusmn; 30.4 (390)</span></span></span></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">(11.89&nbsp;; 278.49)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t\t<tr>\r\n
    \t\t\t<td style="background-color:#f2f2f2; width:267.95pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="font-size:12.0pt"><span style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Volume t&eacute;l&eacute; diastolique du VG ( VTSVG mm)</span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t\t<td style="background-color:#f2f2f2; width:192.75pt">\r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">121 &plusmn; 48.6 (390)</span></span></span></span></span></pre>\r\n
    \r\n
    \t\t\t<pre>\r\n
    <span style="font-size:10pt"><span style="font-family:&quot;Courier New&quot;"><span style="background-color:#f1f0f0"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#444950">(41.25&nbsp;; 376.61)</span></span></span></span></span></pre>\r\n
    \t\t\t</td>\r\n
    \t\t</tr>\r\n
    \t</tbody>\r\n
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    <p style="text-align:justify"><em><strong>* Essai MAVERICK-HCM&nbsp;: Le Mavacamten (Myokardia) dans la CMH non-obstructive</strong></em></p>\r\n
    \r\n
    <p style="text-align:justify"><br />\r\n
    Le Mavacamten est un inhibiteur allost&eacute;rique de la myosine cardiaque qui diminue les interactions entre myosine et actine trop activ&eacute;es dans la CMH et source de contractilit&eacute; ventriculaire exag&eacute;r&eacute;e, de d&eacute;perdition d&rsquo;&eacute;nergie et de troubles de la relaxation.&nbsp;</p>\r\n
    \r\n
    <p style="text-align:justify"><br />\r\n
    <strong>OBJECTIF</strong><br />\r\n
    Evaluer l&rsquo;efficacit&eacute;, la s&ucirc;ret&eacute; et la tol&eacute;rance du Mavacamten chez des patients pr&eacute;sentant une cardiomyopathie hypertrophique non- obstructive symptomatique (NYHA II/III).</p>\r\n
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    <p style="text-align:justify"><strong>METHODES</strong><br />\r\n
    Essai randomis&eacute; de phase II en double aveugle chez des patients avec CMH non-obstructive (gradient &lt;30 mm Hg ; spontan&eacute; ou provoqu&eacute;, NYHA Classe II ou III et FEVG &ge;55%) randomis&eacute;s pour recevoir soit le mavacamten pendant 16 semaines &agrave; des concentrations cibles de 200 ng/ml ou 500 ng/ml soit un placebo. Le crit&egrave;re principal de s&eacute;curit&eacute; &eacute;tait la fr&eacute;quence et la gravit&eacute; des &eacute;v&eacute;nements ind&eacute;sirables et un crit&egrave;re d&#39;&eacute;valuation fonctionnel composite (augmentation de &ge; 1,5 ml/kg/min du pic de VO2 d&#39;effort et une am&eacute;lioration de la classe NYHA &ge; 1 ou une augmentation de la VO2 &ge; 3,0 ml/kg/min sans aggravation NYHA).</p>\r\n
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    <p style="text-align:justify"><strong>R&eacute;sultats</strong><br />\r\n
    59 patients ont &eacute;t&eacute; randomis&eacute;s en 3 groupes&nbsp;: &nbsp;groupe 1 mavacamten 200 ng/ml (n = 19), groupe 2 &nbsp; mavacamten 500 ng/ml (n = 21) et groupe 3 placebo (n = 19). &nbsp;A l&#39;&eacute;tat basal, dans le groupe mavacamten, 33 patients &eacute;taient en classe NYHA II et 7 en classe III versus 13 et 6 dans le groupe placebo, le pic de VO2 et le NT-proBNP &eacute;taient respectivement de 20,5 mL/kg/min et 821 pg/mL versus 17,9mL/kg /min et 914 pg/mL sous placebo, 25 patients prenaient des b&ecirc;tabloquants et 10 des inhibiteurs calciques versus 12 et 3 sous placebo, et la FEVG moyenne &eacute;tait de 69 % et de 66 % dans le groupe placebo.<br />\r\n
    A 24 semaines, 89,7 % des patients sous mavacamten ont pr&eacute;sent&eacute; au moins un &eacute;v&eacute;nement ind&eacute;sirable (EI) li&eacute; au traitement contre 68,4 % dans le groupe placebo. Au moins un &eacute;v&eacute;nement ind&eacute;sirable grave s&#39;est produit chez 10,3 % des patients sous mavacamten contre 21,1 % sous placebo.&nbsp;<br />\r\n
    La FEVG moyenne a diminu&eacute; de 4,1 % sous mavacamten et plus en cas de concentration cible = 500 ng/mL contre 2,3% sous placebo. Les taux de NT-ProBNP et troponine ont diminu&eacute; sous mavacamten (inchang&eacute;s sous placebo). De plus, 35 patients sous mavacamten ont atteint le crit&egrave;re d&#39;efficacit&eacute; fonctionnelle, contre 21 dans le groupe placebo.&nbsp;</p>\r\n
    \r\n
    <p style="text-align:justify"><br />\r\n
    <strong>Discussion&nbsp;</strong><br />\r\n
    L&rsquo;&eacute;tude MAVERICK-HCM montre que le traitement par mavacamten pendant 16 semaines dans la CMH non obstructive symptomatique est bien tol&eacute;r&eacute; et efficace.&nbsp;<br />\r\n
    Le taux d&#39;&eacute;v&egrave;nements ind&eacute;sirables &eacute;tait plus &eacute;lev&eacute; dans les groupes trait&eacute;s mais la majorit&eacute; de ces &eacute;v&egrave;nements &eacute;taient mineurs ou mod&eacute;r&eacute;s et r&eacute;versibles alors que les &eacute;v&egrave;nements graves &eacute;taient deux fois plus fr&eacute;quents dans le bras placebo.<br />\r\n
    Les niveaux du NT-proBNP &eacute;taient nettement r&eacute;duits chez les patients recevant du mavacamten par rapport au groupe placebo. &nbsp;Cet effet favorable sur le NT-proBNP (biomarqueur du stress cardiaque) est associ&eacute; &agrave; une r&eacute;duction des taux de mortalit&eacute; et d&#39;hospitalisation li&eacute;s &agrave; l&#39;insuffisance cardiaque.<br />\r\n
    Un b&eacute;n&eacute;fice clinique a &eacute;t&eacute; observ&eacute;e chez les patients ayant des pressions de remplissage ventriculaire gauche &eacute;lev&eacute;es ou &agrave; haut risque de morbi-mortalit&eacute;.</p>\r\n
    \r\n
    <p style="text-align:justify"><br />\r\n
    <strong>CONCLUSION</strong><br />\r\n
    La CMH non obstructive n&rsquo;a pas de traitement sp&eacute;cifique &agrave; ce jour. Le mavacamten serait une alternative s&eacute;duisante dans la prise en charge de cette affection. Des &eacute;tudes plus larges sont n&eacute;cessaires pour mieux pr&eacute;ciser les indications de cette nouvelle classe th&eacute;rapeutique. &nbsp;</p>
    """
  -descriptionEn: null
  -descriptionSansEditeur: "Les objectifs de l’étude étaient d’évaluer, dans la pratique courante ; la sécurité et l’efficacité de l’emploi des dispositifs MitraClip NTR et XTR, dans le traitement de l’IM primitive et l’impact de la complexité anatomique sur le degré de réduction la fuite."
  -titrePhoto: null
  -categorieHightlights: CategorieHightlights {#576 …}
  -affiche: null
  -file: null
  #photoHightlights: PersistentCollection {#583 …}
}
id
"64"