European heart journal. Case reports · 2024
Evolving consequences of right coronary artery to right atrium: coronary cameral fistula-a case report.
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How Wei Jun, Luckie Matthew, Bratis Konstantinos, Hasan Ragheb, Malik Nadim
Аннотация
BACKGROUND: Coronary cameral fistula is a rare diagnosis, which may be picked up incidentally on cardiac imaging. While majority of cases is asymptomatic, they can be complicated by myocardial ischaemia, arrhythmias, heart failure, infective endocarditis, and rarely rupture or thrombosis of the fistula leading to sudden death.
CASE SUMMARY: A 73-year-old female presents with fever, lethargy, and examination finding of a continuous cardiac murmur. CT coronary angiogram confirmed the presence of a coronary cameral fistula, with an aneurysmal RCA seen arising from the right coronary sinus, following an extensive tortuous course wrapping around the heart, and terminating at the right atrium. While there was initial streptococcus bacteraemia identified on blood culture sampling, no obvious masses were detected on the valves, chambers, or along the course of the fistula. Over time, she develops anginal chest pain and heart failure symptoms, with progressive dilatation of the right ventricle and functional tricuspid regurgitation secondary to shunting of the fistula into the right chambers. Surgical intervention was then pursued and successfully addressed these complications.
DISCUSSION: This case report highlights the importance of advanced imaging modalities for accurate diagnosis of coronary cameral fistulae, addressing late manifestations of the disease and the necessity for a collaborative, multidisciplinary approach in managing complex cardiac anomalies.
CASE SUMMARY: A 73-year-old female presents with fever, lethargy, and examination finding of a continuous cardiac murmur. CT coronary angiogram confirmed the presence of a coronary cameral fistula, with an aneurysmal RCA seen arising from the right coronary sinus, following an extensive tortuous course wrapping around the heart, and terminating at the right atrium. While there was initial streptococcus bacteraemia identified on blood culture sampling, no obvious masses were detected on the valves, chambers, or along the course of the fistula. Over time, she develops anginal chest pain and heart failure symptoms, with progressive dilatation of the right ventricle and functional tricuspid regurgitation secondary to shunting of the fistula into the right chambers. Surgical intervention was then pursued and successfully addressed these complications.
DISCUSSION: This case report highlights the importance of advanced imaging modalities for accurate diagnosis of coronary cameral fistulae, addressing late manifestations of the disease and the necessity for a collaborative, multidisciplinary approach in managing complex cardiac anomalies.