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The effect of antegrade pulmonary blood flow following a late bidirectional Glenn procedure.

Abstract：

OBJECTIVES:The effect of antegrade pulmonary blood flow (APBF) has never been studied in the bidirectional Glenn (BDG) procedure performed late. METHODS:Records of 112 consecutive patients who had a BDG procedure during a 10-year period were reviewed retrospectively. The patients were divided into 2 groups based on whether APBF occurred following the BDG procedure (APBF group, n = 81) or not (non-APBF group, n = 31). The median age at the BDG procedure was 6.16 ± 3.93 years in the APBF group and 6.12 ± 4.40 years in the non-APBF group. RESULTS:Demographics and pre- and intraoperative variables were comparable for both groups. Follow-up data were obtained for patients at the BDG stage and for those who had undergone the Fontan completion. Both oxygen saturation levels (81.72 ± 1.976% vs 78.32 ± 2.344%, P < 0.01) and pulmonary pressure (13.59 ± 1.376 mmHg vs 12.90 ± 0.978 mmHg, P = 0.012) were higher in the APBF group immediately after the BDG procedure. Both the duration of chest tube drainage and the total length of stay were longer in the APBF group. The pre-Glenn measurements showed a mean McGoon ratio of 1.68 ± 0.114 in the APBF group and 1.67 ± 0.098 in the non-APBF group (P = 0.474). The McGoon ratios measured before the Fontan procedure were also comparable (1.669 ± 0.726 vs 1.685 ± 0.669, P = 0.576). At the pre-Fontan measurement, there was no significant difference in mean pulmonary artery pressures between the groups (13.72 ± 1.368 vs 13.50 ± 1.265, P = 0.653). Fifty-nine patients underwent the Fontan completion (43 from the APBF group and 16 from the non-APBF group) procedure with a median of 1.2 (APBF group) and 1.4 (non-APBF group) years after the BDG procedure. No significant differences between groups were observed in arterial oxygen saturation levels, incidence of systemic atrioventricular valve regurgitation or ventricular dysfunction in survivors at the last follow-up visit. CONCLUSIONS:The BDG procedure can be safely performed at a relatively older age (∼6 years). APBF increases oxygen saturation but also prolongs pleural effusion and hospital stay. Medium-term outcomes and the Fontan completion rate in the APBF and the non-APBF groups are comparable. Further large studies and long-term follow-up are needed to clarify the effect of APBF in patients who have the late BDG.

journal_name

Interact Cardiovasc Thorac Surg

journal_title

Interactive cardiovascular and thoracic surgery

authors

Yan T,Tong G,Zhang B,Yan F,Zhou X,Wang X,Lu H,Ma T,Wang X,Yu H,Sun Z,Zhang W

doi

10.1093/icvts/ivx325

subject

Has Abstract

pub_date

2018-03-01 00:00:00

pages

454-459

issue

eissn

1569-9293

issn

1569-9285

pii

4540716

journal_volume

pub_type

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The effect of antegrade pulmonary blood flow following a late bidirectional Glenn procedure.