Midterm results and risk factors of functional single ventricles with extracardiac total anomalous pulmonary venous connection

Mikio Sugano, Masaya Murata, Yujiro Ide, Hiroki Ito, Kazuyoshi Kanno, Kenta Imai, Motonori Ishidou, Ryohei Fukuba, Kisaburou Sakamoto

Mt. Fuji Shizuoka Children’s Hospital.
Japan

General Thoracic and Cardiovascular Surgery
Gen Thorac Cardiovasc Surg 2019; 67: 941-948
DOI: 10.1007/s11748-019-01141-3

Abstract
Objectives: To evaluate the clinical outcomes of surgical repair of an extracardiac total anomalous pulmonary venous connection (TAPVC) in a functional single-ventricle (f-SV) strategy.
Methods: This was a retrospective analysis of 48 consecutive cases of extracardiac TAPVC repair, from 1998 to 2015. Demographic and clinical variables were as follows: median age, 24 (range 0-744) days; median weight, 3.1 (range 2.0-9.6) kg; type of TAPVC-supracardiac, 21 patients, infracardiac, 8, and mixed, 19; right atrial isomerism, 45 patients; pulmonary atresia, 24 patients; and obstructed TAPVC, 30 patients. Concomitant procedures included systemic-to-pulmonary shunting in 15 patients, pulmonary artery banding in 12, ventricle-to-pulmonary artery shunting in 2, a Norwood procedure in one, a bidirectional Glenn procedure in 16, and a Fontan procedure in 1.
Results: The 1- and 5-year cumulative survival rates were 66.0% and 58.0%, respectively. Of the 28 survivors, 22 (78.6%) underwent Fontan completion and 4 (14.3%) a bidirectional Glenn procedure, and 1 (3.6%) was awaiting a bidirectional Glenn procedure. Recurrent pulmonary venous stenosis (PVS) was observed in 17 patients, with a 1- and 5-year rates of freedom from recurrent PVS 59.8% and 53.5%, respectively. Of the 20 post-operative deaths, only 4 were PVS related. Only pre-operative pulmonary atresia was identified as an independent risk factor of mortality after TAPVC repair.
Conclusions: The midterm surgical outcomes of f-SV with extracardiac TAPVC were acceptable. Moreover, among survivors, Fontan completion can be sufficiently expected. Further improvement, with the development of a comprehensive treatment strategy, is required for this patient group.

Category
Stenosis or Obstruction of Pulmonary Veins Following Surgical Repair of Anomalous Pulmonary Venous Connections
Incidence or Prevalence of Disease
Length of Life Associated with Pulmonary Venous Obstruction

Year of Publication: 2019

Age Focus: Pediatric

Article Type: Retrospective Observational Cohort Studies (>10 patients)

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