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03 February 2024 : Case report  USA

[In Press] Unraveling the Uncommon: A Case Report of Giant Cell Myocarditis and Examination of Existing Literature

Unusual clinical course, Rare disease

Yurilu A. Gonzalez Moret ORCID logo12ABCDEF, Simone A. Jarrett ORCID logo12ABEF, Hamza Ahktar32EF, Nazanin Moghbeli32ABEF, Syed Hasni32AEF, Behnam Bozorgnia32ABEF, Rekha R. Bhat ORCID logo42AB

DOI: 10.12659/AJCR.942381

Am J Case Rep In Press; DOI: 10.12659/AJCR.942381  

Available online: 2024-02-03, In Press, Corrected Proof

Publication in the "In-Press" formula aims at speeding up the public availability of the pending manuscript while waiting for the final publication. The assigned DOI number is active and citable. The availability of the article in the Medline, PubMed and PMC databases as well as Web of Science will be obtained after the final publication according to the journal schedule

Abstract

BACKGROUND
Idiopathic giant cell myocarditis (IGCM) is an uncommon and frequently fatal type of myocarditis. It primarily affects young individuals and has the potential to result in heart failure and life-threatening arrhythmias. IGCM seems to be dependent on activation of CD4-positive T lymphocytes and can show improvement with treatment aimed at reducing T-cell function. We present a case of a 65-year-old patient who presented with features of acute heart failure refractory to guideline-directed medical therapy (GDMT), due to IGCM. A review of the natural history and treatment of IGCM is also presented.
CASE REPORT
A 65-year-old woman with multiple comorbidities was admitted to our hospital for ventricular tachycardia in the setting of progressive non-ischemic heart failure, unresponsive to GDMT. This led to further investigation, including an endomyocardial biopsy, which revealed inflammatory infiltration, with multinucleated giant cells and lymphocytes in the absence of granuloma formation, prompting a diagnosis of IGCM. An implantable cardioverter-defibrillator (ICD) was placed for secondary prevention of sudden cardiac death and the patient was initiated on combined immunosuppressive therapy. Owing to numerous comorbidities, she was determined to be unsuitable for a heart transplant. Unfortunately, she eventually died from complications secondary to the disease.
CONCLUSIONS
IGCM remains a challenging clinical diagnosis with a poor long-term outcome without heart transplantation. This case highlights the importance of considering atypical causes of heart failure in patients who do not respond to conventional therapies. Early recognition and appropriate management, involving medical and interventional approaches, are crucial in improving outcomes for patients with IGCM.

Keywords: Cardiomyopathy, Dilated; Heart Failure; Myocarditis; Tachycardia, Ventricular

In Press

18 Jan 2024 : Case report  Belgium

A Rare Case of Retroperitoneal Abscess Caused by Nephro-Colic Fistula Resulting from Staghorn Calculus

Am J Case Rep In Press; DOI: 10.12659/AJCR.943206  

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18 Jan 2024 : Case report  USA

A Case of Left-Sided Acute Appendicitis in a 45-Year-Old Man with Situs Inversus Totalis Managed by Emergen...

Am J Case Rep In Press; DOI: 10.12659/AJCR.942323  

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23 Jan 2024 : Case report  USA

Cloacal Dysgenesis Sequence in a Preterm Neonate

Am J Case Rep In Press; DOI: 10.12659/AJCR.942203  

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09 Feb 2024 : Case report  USA

A Case of Trauma-Related Angioedema of the Airway in a Patient on an Angiotensin Receptor Blocker

Am J Case Rep In Press; DOI: 10.12659/AJCR.943407  

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923