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Traumatic right coronary artery-right ventricular fistula with retained intramyocardial bullet
Insights
Gunshot wounds can cause rare coronary artery fistulas, requiring long-term cardiac monitoring. Surgical intervention is often needed, but medical management may suffice for smaller fistulas.
Area of Science:
- Cardiology
- Trauma Surgery
- Cardiovascular Surgery
Background:
- Traumatic cardiac injuries, particularly from penetrating wounds like gunshot injuries, can lead to complex vascular complications.
- Coronary artery fistulas, abnormal connections between coronary arteries and heart chambers, are rare but serious sequelae of cardiac trauma.
Observation:
- A case of traumatic right coronary artery-right ventricular fistula resulting from a gunshot wound is presented.
- The bullet was found to be retained within the interventricular septum.
- Diagnostic imaging and surgical findings from this and other reported cases are discussed.
Findings:
- Coronary artery fistulas can manifest years after the initial cardiac trauma, necessitating extended follow-up.
- While surgical intervention is generally indicated for coronary artery fistulas, medical management may be an option for small to moderate-sized fistulas.
- Meticulous surgical technique is crucial for locating and closing fistulas, with coronary arterial ligation and bypass grafting being potential treatment strategies.
Implications:
- The findings underscore the importance of long-term cardiac surveillance after trauma to detect delayed fistula formation.
- Careful operative planning and execution are vital for successful surgical repair of traumatic fistulas.
- Postoperative evaluation is mandatory to monitor for potential fistula recurrence and manage retained foreign bodies within the myocardium.
Abstract:
A case of traumatic right coronary artery-right ventricular fistula secondary to a gunshot wound is presented. In addition, the bullet was retained within the interventricular septum. The diagnostic approach, surgical findings and operative procedure of this and other reported cases are discussed. Several key points are emphasized. First, extended follow-up is necessary after trauma to the heart since fistulas may develop years after the initial injury. Second, surgery is generally indicated for fistulas although some data are presented suggesting that small to moderate fistulas may be treated medically. Third, if surgery is undertaken, very careful operative technique must be utilized to locate and close the fistula. Surgical treatment of choice may be coronary arterial ligation with a distal bypass graft if necessary. Postoperative evaluation is mandatory because fistulas may recur. Indications for removal of a foreign body within the myocardium are also discussed.