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Research: Surgeon level variation in outcome of repair of congenital diaphragmatic hernia with particular reference to the management of recurrence

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Research: Surgeon level variation in outcome of repair of congenital diaphragmatic hernia with particular reference to the management of recurrence

J Pediatr Surg

. 2021 Mar 5;S0022-3468(21)00199-8. doi: 10.1016/j.jpedsurg.2021.02.065. Online ahead of print. https://pubmed.ncbi.nlm.nih.gov/33775404/

Surgeon level variation in outcome of repair of congenital diaphragmatic hernia with particular reference to the management of recurrence

Ryo Tamura 1Elizabeth O’Connor 1Bruce Jaffray 2Affiliations expand

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Abstract

Introduction: The aim of this study is to investigate firstly, the rate of recurrence following primary repair of a congenital diaphragmatic hernia (CDH) and secondly, the rate of recurrence following revisional surgical repair. The primary outcome is rate of recurrence. Secondary outcomes are to establish whether recurrence is related to surgeon, surgeon volume, side of defect, the use of a patch, or a thoracopscopic approach METHODS: All repairs performed in an English regional center over 22 years were recorded. Possible explanatory variables were whether the repair was itself of a recurrence, the surgeon’s identity, the surgeon’s volume of prior repairs, the side of the defect, the use of a patch.

Results: 198 repairs were performed; 170 primary repairs and 28 of recurrences. Failure occurred significantly more commonly among recurrences (32%) than primary repairs (11%), p = 0.005. Failure of the primary repair was significantly more common where a patch was used 8/34 (23%) rather than a sutured repair 10/136 (7%), p = 0.006, or where a thoracoscopic technique was used 4/13 (31%) rather than laparotomy 14/157 (9%) p = 0.01. Failure of the primary repair was unrelated to the identity of the surgeon (Χ2 = 5, p = 0.9) or the volume of prior repairs (t = 0.3, p = 0.6). However, failure of repair of a recurrence was significantly related to the surgeon’s volume of prior repairs (t = 2.3, p = 0.01) and the identity of the surgeon (Χ2 = 17, p = 0.014), but not the use of a patch (Χ2 = 1.6, p = 0.2).

Conclusions: Repair of a recurrence of a CDH has a higher probability of failure than the original repair and is related to both the identity of the surgeon and the prior volume of experience. There is a volume outcome relationship for the repair of recurrence, but not the primary repair of CDH. Our study suggests the repair of recurrence of CDH should be restricted to surgeons with proven outcomes for this procedure.

Keywords: 4; Complications; Congenital diaphragmatic hernia; Level of Evidence; Surgical outcomes; Volume outcome.

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