27 July 2026
: Case report 
Transient Cardiac Dysfunction Due to New-Onset Mitral Chordal Rupture With Concomitant Congenital Absence of the Right Coronary Artery: A Case Report
Challenging differential diagnosis, Unusual setting of medical care, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Songyan Zhang E 1, Ying Cui F 1, Shucheng Li A 1*DOI: 10.12659/AJCR.952798
Am J Case Rep 2026; 27:e952798
Figure 1 Electrocardiograms. (A) First admission: sinus tachycardia (101 bpm), high left ventricular voltages, poor R-wave progression, and ST-segment depression (0.1 mV) in leads V4–V6. (B) Second admission: sinus rhythm (72 bpm), occasional premature ventricular contractions, and no dynamic ST-T changes.