The research of selective unifocalization in patients with pulmonary atresia with ventricular septal defect and major aortopulmonary collaterals and recognition of major aortopulmonary collaterals from the perspective of histopathology / 中华胸心血管外科杂志

Objective@#To investigate the clinical outcomes of selective major aortopulmonary collaterals(MAPCAs) unifocalization and report histopathological findings in patients with pulmonary atresia with ventricular septal defect and major aortopulmonary collaterals(PA/VSD/ MAPCAs).@*Methods@#The study enrolled 6 MAPCAs/VSD/PA patients with age ranged from 6 to 96 months and body weight ranged from 5.0 to 23.0 kg. These patients underwent selective MAPCAs unifocalization and primary repairs. Preoperative cardiac catheter, selective arteriography, cardiac CTA and intraoperative pathology were performed to identify different function, anatomic distribution and histopathology of MAPCAs.@*Results@#6 MAPCAs/VSD/PA patients underwent selective MAPCAs unifocalization and primary repair. No death occurred after operation and at follow-up which lasted for 1 to 20 months. Preoperative cardiac catheter, selective arteriography and intraoperative histopathology demonstrated distribution of functional MAPCAs similar to native pulmonary artery arborization and participating in arterial gas exchange. Functional MAPCAs were classified into elastic arteries according to histopathology.@*Conclusion@#There are two histological type of MAPCAs which play different roles. Selective unifocalization to functional MAPCAs which are classified into elastic arteries like native pulmonary artery is a safe and effective treatment approach for PA/VSD/MAPCAs.

Bleeding in the lung complicates a routine intracardiac repair: What went wrong!!!

Cyanotic congenital heart disease presents an increased tendency to bleed in view of subtle coagulation defects. Airway bleeding can be particularly difficult to manage while maintaining an adequate ventilation. An isolated lung bleed with the exclusion of possible traumatic, medical and surgical causes of bleeding, should alert the attending anesthesiologist to the possibility of the collateral-related bleeding. Preoperative coil embolization remains an important initial management step in a case of tetralogy of Fallot (TOF) with major aortopulmonary collaterals. Nevertheless, the coiling of the collaterals in certain specific case scenarios is not feasible, rendering the management of a lung bleed, all the more challenging. We, hereby discuss a case of a 7-year-old girl with a massive endotracheal bleed at the time of weaning from cardiopulmonary bypass after corrective surgery for TOF. The subsequent approach and management are discussed. The optimal management of tetralogy with collaterals mandates an effective communication among the cardiologist, radiologist, anesthesiologist, and the surgeon.

The research of operation concept in pulmonary atresia with ventricular septal defect and major aortopulmonary collaterals / 中华胸心血管外科杂志

Objective Sum up the research of concept of surgical procedure of PA/VSD/MAPCA.Methods Between January 2003 and December 2012,92 children were operated,aged 1 day to 5.2 years ; median age (1.3 ± 0.6) years.There were 26 cases for one stage operation,66 cases were for palliative operation which were divided into 3 stages.The 3 stages of palliative operation included system to pulmonary shunt,conduit from RVOT to MPA or transannular patch from RVOT to MPA,enlargemene of pulmonary artery and ligation of MAPCA.From all the patients,15 cases had been finished the two staged operation.In the end,there were 17 cases who were completed two or three stage radical operation.Results There were 3 cases who died from the first period.There were 9 cases who were completed two stage operation,and 1 case died.There were 8 cases who were completed three stage operation.there was 1 cases who died in this period.Conclusion The surgical treatment for the PA/VSD/MAPCA could be that the connection between RVOT and pulmonary artery should be performed as early as possible which could provide the blood flow to pulmonary artery and promote the growth.Uniforcalization could also be set up as early as possible if it is needed.It could be ligated in different period.The PA/VSD/MAPCA could be repaired by stagesand have satisfied results.

Oclusión de colateral aorto-pulmonar con dispositivo Amplatzer® Vascular Plug II en un paciente con atresia pulmonar y comunicación interventricular: Reporte de un caso / Occlusion of aortopulmonary collateral arteries with Amplatzer® Vascular Plug II device in a patient with pulmonary atresia and ventricular septal defect: Case report

Introducción. La atresia pulmonar con comunicación interventricular es una cardiopatía compleja con una incidencia aproximada de 2% entre todas las cardiopatías congénitas. Se asocia con frecuencia al síndrome de deleción 22q11. Tiene una amplia variabilidad anatómica que es necesario precisar con exactitud para poder establecer un plan médico quirúrgico individualizado. Caso clínico. Se presenta el caso de un paciente de 2 años con atresia pulmonar y comunicación interventricular asociadas a dos grandes colaterales aortopulmonares. Este paciente fue corregido mediante conexión de ventrículo derecho a arteria pulmonar, durante la cual fue posible ligar una de las colaterales; la restante fue embolizada mediante un dispositivo trascateterismo con oclusión total. Conclusiones. El manejo de las arterias colaterales asociadas a atresia pulmonar con comunicación interventricular es complejo pero accesible al tratamiento trascateterismo mediante el implante de dispositivos con mínima morbimortalidad.

Background. Pulmonary atresia with ventricular septal defect (VSD) is a complex heart disease with an incidence of ~2% of all congenital heart diseases. It is frequently associated with 22q11 deletion syndrome. Due to the extensive anatomic variability, it is necessary to accurately establish an individualized surgical/medical plan. Case report. We report the case of a 2-year-old patient with pulmonary atresia and two associated mayor aortopulmonary collateral arteries. This patient underwent right ventricular-pulmonary artery connection at which time it was possible to ligate one of the collaterals. The remaining were embolized by transcatheter device with total occlusion. Conclusions. Management of collateral arteries associated with pulmonary atresia with VSD is complex but is accessible with transcatheter treatment with device implantation with minimal morbidity.

One-Stage Correction of Tetralogy of Fallot, Pulmonary Atresia and Major Aortopulmonary Collateral Artery Associated with Aortopulmonary Window / 日本心臓血管外科学会雑誌

A 4-year-old boy was born with cyanosis and was given a diagnosis of tetralogy of Fallot and pulmonary atresia. Echocardiography showed membranous atresia of the pulmonary trunk that was connected to the left side of the ascending aorta via an aortopulmonary window 3 mm in diameter. Four major aortopulmonary collateral arteries (MAPCAs) were detected by cardiac catheterization and computed tomography angiography prior to undergoing surgery at 4 years of age. We performed one-stage complete unifocalization and definitive repair via a median sternotomy. The MAPCA supplying the left lower lobe was anastomosed to the true left pulmonary artery and the pulmonary artery trunk was augmented with an autologous pericardium patch. We then reconstructed the right ventricular outflow tract using a transannular patch and simultaneously patch-closed the VSD. The right/left ventricle pressure ratio after weaning from cardiopulmonary bypass was 0.8. The postoperative course was uneventful and the patient was discharged 26 days later. Seven months after the procedure, the right/left ventricle pressure ratio was decreased to 0.56 on cardiac catheterization.

Transcatheter closure of congenital vascular malformations with cook coils and aGA amplatzer duct occluder in children / 中国介入心脏病学杂志

Objective To explore the method and therapeutic principle of transcatheter closure of coronary artery fistula, aortopulmonary collaterals and aortopulmonary window. Methods Interventional occlusion of 4 cases of coronary artery fistulas and 1 case of aortopulmonary collaterals with Cook coils, 1 case of coronary artery fistulas and 1 case of aortopulmonary window with AGA Amplatzer duct occluder. The mean age of 7 children were 8.5 years. Results Transcatheter closure of 7 cases of vascular malformations were successful. During the follow-up period of 1 month to 5 years, no residual shunt and other complications appeared. Conclusion The curative effect of transcatheter closure of vascular malformations was good. But for the occlusions′ success and prevention from complications occurrence, the indications of closure should be obeyed, the time of X-ray exposure should be less than 60 minutes.