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The effect of surgical technique, age, and Trisomy 21 on early outcome of surgical management of complete atrioventricular canal defect

Published online by Cambridge University Press:  05 August 2021

Sherief Azzab
Affiliation:
Department of Cardiothoracic Surgery, Ain Shams University Hospitals, Cairo, Egypt
Ahmed Samy
Affiliation:
Department of Cardiothoracic Surgery, Ain Shams University Hospitals, Cairo, Egypt
Hamdy Singab
Affiliation:
Department of Cardiothoracic Surgery, Ain Shams University Hospitals, Cairo, Egypt
Mohamed Zeinah
Affiliation:
Department of Cardiothoracic Surgery, Liverpool Heart and Chest Hospital, Liverpool, UK
Gledisa Musollari
Affiliation:
School of Medicine, Imperial College, London, UK
Ariana Axiaq
Affiliation:
School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, Northern Ireland, UK
Amer Harky
Affiliation:
Department of Cardiothoracic Surgery, Liverpool Heart and Chest Hospital, Liverpool, UK
Ahmed Tarek
Affiliation:
Department of Cardiothoracic Surgery, Ain Shams University Hospitals, Cairo, Egypt
Mohamed El Ghanam*
Affiliation:
Department of Cardiothoracic Surgery, Ain Shams University Hospitals, Cairo, Egypt
*
Author for correspondence: Dr Mohamed El Ghanam, Department of Cardiothoracic Surgery, Ain Shams University Hospitals, Cairo, Egypt. Tel: +20-122-733-7256. E-mail: [email protected]

Abstract

Background:

The optimal timing, surgical technique, and the influence of Trisomy 21 on the outcome of surgical repair of Complete Atrioventricular Canal Defect remains uncertain. We reviewed our experience in the repair of CAVC to identify the influence of these factors on operative outcomes.

Methods:

A prospective study included 70 patients, who underwent repair of CAVC at our institute between July, 2016 and October, 2019. Primary endpoint was mortality and the secondary endpoint was a degree of left atrioventricular valve regurgitation.

Results:

No significant difference was noted between patients operated on, at the first 6 months of age versus later, regarding mortality or LAVV regurgitation. Surgical repair by modified single-patch technique showed a significant reduction in bypass time (71.13 ± 13.507 min versus 99.19 ± 27.092 min, p-value = 0.001). Compared to closure of cleft only, posterior annuloplasty used for repair of LAVV resulted in significant reduction in the occurrence of post-operative valve regurgitation during the early period (LAVV 2 + 43 versus 7 %, p-value = 0.03) and at 6 months of follow-up (LAVV 2 + 35.4 versus 0 %, p-value = 0.01), respectively.

Conclusions:

Early intervention, in the first 6 months in patients with CAVC by surgical repair gives comparable acceptable results to later repair; Trisomy 21 was not found to be a risk factor for early intervention. Repair of common AV valve by cleft closure with posterior LAVV annuloplasty showed better results with a significant decrease in post-operative LAVV regurgitation and early mortality in comparison to the closure of cleft only.

Type
Original Article
Copyright
© The Author(s), 2021. Published by Cambridge University Press

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