{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T17:08:06Z","timestamp":1781197686400,"version":"3.54.1"},"reference-count":15,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T00:00:00Z","timestamp":1780358400000},"content-version":"vor","delay-in-days":1,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,6,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Peripartum cardiomyopathy (PPCM) is an uncommon cause of heart failure occurring towards the end of pregnancy or in the months following delivery. Although often considered idiopathic, emerging evidence suggests a significant genetic contribution in some patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case summary<\/jats:title>\n                    <jats:p>We report a 31-year-old woman who presented 10 weeks postpartum with symptoms of advanced heart failure. Transthoracic echocardiography revealed a severely reduced left ventricular ejection fraction (18%). Cardiac magnetic resonance imaging confirmed severe systolic dysfunction with non-ischaemic late gadolinium enhancement. After exclusion of other causes, PPCM was diagnosed. She was initiated on guideline-directed heart failure therapy and bromocriptine for lactation suppression. As part of the ongoing evaluation, endomyocardial biopsy revealed persistence of parvovirus B19 without histological evidence of active myocarditis. Genetic testing was initiated, and results later identified a pathogenic X-linked deletion of exons 44\u201350 in the dystrophin (DMD) gene, consistent with cardiac-restricted dystrophinopathy. The patient has remained clinically stable under ongoing therapy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>This case underscores the importance of considering genetic testing in PPCM. The identification of an X-linked dystrophin gene deletion was unexpected, as the patient had no neuromuscular symptoms. Such mutations may manifest as isolated cardiomyopathy in female carriers, with pregnancy serving as a precipitating physiological stressor. Identifying a genetic cause enables optimized management and facilitates targeted family screening.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/ehjcr\/ytag405","type":"journal-article","created":{"date-parts":[[2026,5,30]],"date-time":"2026-05-30T11:43:25Z","timestamp":1780141405000},"source":"Crossref","is-referenced-by-count":0,"title":["Genetic cardiomyopathy unmasked by pregnancy: X-linked dystrophinopathy presenting as peripartum cardiomyopathy\u2014a case report"],"prefix":"10.1093","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-9807-235X","authenticated-orcid":false,"given":"Julian","family":"Bauer","sequence":"first","affiliation":[{"name":"Department of Internal Medicine II, Cardiology, Sana Klinikum Lichtenberg , Fanningerstra\u00dfe 32, Berlin 10365 ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2095-6806","authenticated-orcid":false,"given":"Fabian","family":"Knebel","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine II, Cardiology, Sana Klinikum Lichtenberg , Fanningerstra\u00dfe 32, Berlin 10365 ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6183-2519","authenticated-orcid":false,"given":"Wilhelm","family":"Haverkamp","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Angiology and Intensive Care Medicine, Charit\u00e9 Campus Mitte, German Heart Center of the Charit\u00e9-University Medicine , Augustenburger Pl. 1, Berlin 13353 ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0203-2498","authenticated-orcid":false,"given":"Karin","family":"Klingel","sequence":"additional","affiliation":[{"name":"Cardiopathology, Institute for Pathology and Neuropathology, University Hospital T\u00fcbingen , Liebermeisterstra\u00dfe 8, T\u00fcbingen 72076 ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aleksandar","family":"Aleksandrov","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine II, Cardiology, Sana Klinikum Lichtenberg , Fanningerstra\u00dfe 32, Berlin 10365 ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,6,2]]},"reference":[{"key":"2026061112365527800_ytag405-B1","doi-asserted-by":"crossref","first-page":"154","DOI":"10.1056\/NEJMra2306667","article-title":"Peripartum 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