Spontaneous coronary artery dissection masquerading as Takotsubo cardiomyopathy: a case report

Spontaneous coronary artery dissection-associated takotsubo syndrome: A systematic review of case reports

BACKGROUND

Spontaneous coronary artery dissection (SCAD) is underdiagnosed and requires comprehensive angiographic findings. Few SCAD occurrences have a comparable clinical appearance as takotsubo syndrome (TTS) or exist simultaneously, making it challenging for clinicians to treat and manage. Case reports lack consolidated data. We examined SCAD-TTS case reports.

AIM

To conduct a systematic review of available case reports on SCAD in order to investigate its potential association with TTS.

METHODS

SCAD-associated TTS case reports were reviewed after thoroughly screening PubMed, EMBASE, Scopus, and Google Scholar databases till January 2023. Case reports described demographics, comorbidities, imaging, management, and results.

RESULTS

Twelve articles about 20 female patients were analyzed. 30% of patients (n = 6, > 60 years) were elderly (mean age 56.2 ± 9.07 years, range 36-70 years). Canada has 9 cases, United States 3, Australia 3, Sweden 2, Japan, Denmark, and France 1. Only 5 reports identified emotional stressors in these cases while 4 reports showed physical triggers for TTS. Nine had hypertension, 2 had hyperlipidemia, and 1 had prediabetes. 5 patients (25%) smoked. 10 (50%) troponin-positive myocardial infarction patients reported chest discomfort. 11 (55%) of 20 instances had TTS/SCAD. 12 (60%) of 20 patients exhibited ST elevation and 3 (15%) had T wave inversion on electrocardiogram. 19/20 patients had elevated troponin. 9 (45%) of 20 people had apical akinesis with TTS ballooning on cardiac imaging. All 20 exhibited echocardiographic wall motion abnormalities. 19 (95%) of 20 coronary angiography cases had SCAD. 10 of 19 SCAD patients had left anterior descending, 2 diagonal, and 2 left circumflex coronary artery involvement. 7 of 20 patients had left ventricular ejection fraction (LVEF) data. LVEF averaged 38.78 ± 7.35%. 5 (25%) of the 20 cases underwent dual antiplatelet therapy. Three (15%) of 20 cases experienced occasional ectopic ventricular complexes, Mobitz ll AV block, and paroxysmal atrial fibrillation. All 20 cases recovered and survived.

CONCLUSION

Given the clinical similarities and challenges in detecting TTS and SCAD, this subset needs more research to raise awareness and reduce morbidity.

An Overlooked Cause of Myocardial Infarction With Normal Coronaries Presenting as Stress Cardiomyopathy in Females

Spontaneous coronary artery dissection (SCAD) should be considered in the differential diagnosis of patients with provisional Takotsubo cardiomyopathy (TTS). However, because of overlapping clinical features, SCAD with subtle angiographic findings and wall motion abnormality like TTS can be easily missed. Therefore, our case highlights the importance of further investigation for SCAD.

The Chicken or the Egg? An Interesting Case Presentation of Spontaneous Coronary Artery Dissection Versus Takotsubo Cardiomyopathy

This is an interesting cardiovascular imaging and coronary angiography case of a 67-year-old female patient who presented with chest pain, abnormal electrocardiogram (EKG), and heart failure who was subsequently found to have spontaneous coronary artery dissection (SCAD) and Takotsubo cardiomyopathy (TCM) on imaging studies. The case presentation highlights the importance of imaging studies and prompt diagnosis in these patients. This study may also highlight the need for early medical intervention in patients with suspected systolic dysfunction due to either of these pathophysiologic processes.