Paraconduit Hernia Following Esophagectomy: Impact of Operative Technique on its Incidence and Recurrence.
Source: PubMed, NCBI / U.S. National Library of Medicine
To assess the incidence and risk factors for paraconduit hernia following esophagectomy, and to evaluate its surgical management, recurrence rates, and contributing factors. Paraconduit hernia is a challenging complication following esophagectomy, with potential compromise of the neo-esophagus and risk of bowel incarceration or strangulation. A single institution retrospective cohort study was conducted on patients who underwent esophagectomy between 2008 and 2024. Freedom from paraconduit hernia was estimated using the Kaplan-Meier method, and Cox regression analysis was employed to determine associated risk factors. Of 349 patients, 27 (7.4%) developed paraconduit hernia [Ivor Lewis 66.7% vs McKeown approach 22.2%, Trans hiatal 11.1%]. The median between esophagectomy and its clinical manifestation was 1.38 years (0.13-4.89). The cumulative incidence of paraconduit hernia was 11.9% at the 5-year follow-up. Twenty-one patients presented with symptoms, including abdominal pain in 51.9%, nausea and vomiting in 59.3%, dysphagia and chest pain in 44.4%. About 33% of patients required emergency surgical repair because of conduit distension and delayed conduit emptying. Risk factors associated with higher risk of development of paraconduit hernia were presence of hiatal hernia (HR: 3.0) during esophagectomy, and prior history of hiatal hernia repair with anti-reflux procedures (HR: 3.68). Extreme BMIs were also associated; lower BMI [<18.5kg/m2] was associated with higher risk (HR
Abstract
To assess the incidence and risk factors for paraconduit hernia following esophagectomy, and to evaluate its surgical management, recurrence rates, and contributing factors. Paraconduit hernia is a challenging complication following esophagectomy, with potential compromise of the neo-esophagus and risk of bowel incarceration or strangulation. A single institution retrospective cohort study was conducted on patients who underwent esophagectomy between 2008 and 2024. Freedom from paraconduit hernia was estimated using the Kaplan-Meier method, and Cox regression analysis was employed to determine associated risk factors. Of 349 patients, 27 (7.4%) developed paraconduit hernia [Ivor Lewis 66.7% vs McKeown approach 22.2%, Trans hiatal 11.1%]. The median between esophagectomy and its clinical manifestation was 1.38 years (0.13-4.89). The cumulative incidence of paraconduit hernia was 11.9% at the 5-year follow-up. Twenty-one patients presented with symptoms, including abdominal pain in 51.9%, nausea and vomiting in 59.3%, dysphagia and chest pain in 44.4%. About 33% of patients required emergency surgical repair because of conduit distension and delayed conduit emptying. Risk factors associated with higher risk of development of paraconduit hernia were presence of hiatal hernia (HR: 3.0) during esophagectomy, and prior history of hiatal hernia repair with anti-reflux procedures (HR: 3.68). Extreme BMIs were also associated; lower BMI [<18.5kg/m2] was associated with higher risk (HR: 4.39), while obesity was a protective factor (HR: 0.26). Recurrence of paraconduit hernia occurred in roughly thirty-eight percent of patients, necessitating reoperation at a median of 1.25 years from the initial presentation. Paraconduit hernia is an uncommon but clinically significant complication after esophagectomy, with an 11.9% incidence at 5 years. Its development is influenced by intraoperative factors such as hiatal hernia repair, as well as low BMI and prior hiatal hernia surgery. Prompt surgical intervention with hernia reduction and cruroplasty is essential, as delayed treatment increases morbidity.