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Article in Japanese | WPRIM | ID: wpr-688476


Basic procedures that cardiovascular surgeons routinely perform are rarely discussed, despite the great variability among facilities. We conducted a questionnaire survey on Extracorporeal Membrane Oxygenation (ECMO) targeting under-forty cardiovascular surgeons and obtained responses from 53 surgeons. We report the questionnaire results.

Article in Japanese | WPRIM | ID: wpr-378292


<p>The efficacy of minimally invasive cardiac surgery (MICS) has often been reported. However, in Japan most of these procedures are supported with robotic systems, which are expensive. We report the technique of atrial septum defect (ASD) closure by MICS and a three-dimensional endoscope without the aid of a robotic system. From March 2012 to April 2015, we performed ASD closure using this method in 7 patients. The use of a three-dimensional endoscope enables cardiac surgery to be performed through smaller incisions (≤5 cm in width). We have adopted this method of ASD closure with the Maze procedure for patients complicated by atrial fibrillation. The operation time will decrease as we improve our surgical technique. Our current practice is to attempt ASD closure with totally endoscopic support.</p>

Article in Japanese | WPRIM | ID: wpr-378286


<p>We report a case of ruptured chronic type B aortic dissecting aneurysm that was successfully treated with the Candy plug technique to exclude a false lumen. A 57-year-old man had undergone abdominal fenestration for complicated acute type B aortic dissection previously. He then underwent debranching TEVAR for an impending rupture because of a dilated thoracic aortic dissecting aneurysm in 2014. After one year, the aneurysm was ruptured because of continuous distal flow of the false lumen. We performed TEVAR using the Candy plug technique, and he was discharged on the 11th postoperative day. The false lumen diameter was reduced. TEVAR using the Candy plug technique for chronic type B aortic dissection was thought to be useful in high-risk patients, but we need more careful observation.</p>

Article in Japanese | WPRIM | ID: wpr-376102


Primary repair of the tetralogy of Fallot with absent pulmonary valve syndrome (TOF/APV) is associated with high mortality rates of 17-33%, especially in neonates. Our standard strategy involves a staged repair with a first palliation, performed during the neonatal period, that includes main pulmonary septation with an ePTFE patch, pulmonary arterioplasty for reduction of vascular dilation, and a modified Blalock-Taussig shunt. We performed successful repairs on two neonates with TOF/APV, one symptomatic and the other non-symptomatic, with this strategy. Case 1 : A 7-day-old boy had TOF/APV, with progressively worsening respiratory distress. His left bronchi, superior vena cava and left atrium were compressed by a dilated pulmonary artery, which was repaired by emergency surgery. Decreasing the diameter of the pulmonary artery (PA index from 2,550 to 525) relieved the compressed organs. Case 2 : A 16-day-old boy with TOF/APV with a main pulmonary artery that increased in diameter from 8 to 17 mm in the course of a single day. He was treated in the same fashion as Case 1. At 1 year of age, an intracardiac repair with tricuspid anuuloplasty was performed successfully. This strategy is much safer than a primary repair and is a good choice for neonatal repair of TOF/APV.