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OBJECTIVE: This study aims to demonstrate our experience and 7-year follow-up results of robotic excision of myxoma using da Vinci surgical system.
METHODS: Fifty-one cases of atrial myxoma were resected using da Vinci surgical system (Intuitive Surgical, USA) in our center from July 2007 to June 2014, including 17 male and 34 female with average age of 47.0±14.1 years (range, 13 to 66 years). Most patients were asymptomatic and two presented with history of stroke. Four tumors occurred in the right atrium (RA) and 47 in the left atrium (LA). The average tumor size was 43mm×52 mm (range, 14mm×19mm to 44mm×74mm). RA myxoma was resected on the beating heart with da Vinci robot. LA tumor was excised via left atriotomy (n=45) or right atriotomy (n=2). The operation time, CPB time and aorta cross clamping time were recorded. Patients were followed up in the outpatient clinic and transthoracic echocardiography (TTE) was in evaluation of surgical outcome.
RESULTS: All myxomas were removed successfully. One patient required concomitant mitral valve repair, and the other with closure of patent foramen ovale. No operative mortality was observed. One case of femoral artery thromboembolism was complicated at the 5th postoperative day and was treated successfully with embolectomy. All patients were followed successfully for a mean length of 24±14 months (range, 5 month to 7 years). There was no death or MACE after surgery. No thromboembolism or reoperation for recurrence of tumor was noticed postoperatively.
CONCLUSIONS: Robotic atrial myxoma excision is a safe and effective surgery. The long-term surgical outcome is excellent.