alexa Diaphragmatic hernia after esophagectomy in 440 patients with long-term follow-up.


Surgery: Current Research

Author(s): Ganeshan DM, Correa AM, Bhosale P, Vaporciyan AA, Rice D,

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Abstract BACKGROUND: Postesophagectomy diaphragmatic hernia (PDH) is a recognized but severely under-reported and potentially hazardous event. Information regarding the natural course of this condition and guidelines regarding indications for reoperative intervention are lacking. In this study we aim to describe the frequency, predictors of incidence, and indications for repair. METHODS: Cross-sectional imaging (computed tomography scan) from patients who underwent esophagectomy between January 2001 and December 2007 at a single center were reviewed by two radiologists blinded to previous reports and clinical outcomes. Patients with PDH were compared with a similar cohort who did not have hernia. Patient characteristics, outcomes, and hernia descriptors including longitudinal progression were recorded. Multivariable logistic regression analyses identified predictors of PDH and need for repair. RESULTS: Of a total of 440 patients who underwent esophagectomy, 67 (15\%) were radiologically diagnosed with PDH. Of these, only 7 of 67 cases (10\%) were prospectively reported by the radiologist. Median time interval from esophagectomy to hernia was 2 years. Type of esophagectomy was an independent predictor for hernia developing (p = 0.027). Patients with high body mass index were less prone to have PDH (p = 0.043). Thus far, 9 patients (2\%) have required surgical intervention, all for hernia-related symptoms or progression. Despite mesh repair, 4 of 9 have recurred and 2 were re-repaired. There was 1 PDH-associated death, 8 years after transhiatal resection. CONCLUSIONS: Variables contributing to PDH are both technical and patient dependent. Whereas the majority of patients with PDH have not required repair, a small portion who became symptomatic or had large, progressive hernia required remedial surgery. Postesophagectomy patients require long-term surveillance for PDH. Copyright © 2013 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved. This article was published in Ann Thorac Surg and referenced in Surgery: Current Research

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