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Paraconduit hernia is a relatively common long-term complication after esophagectomy which has the potential to cause great morbidity and even mortality. The aim of this study is to examine the risk factors and incidence of paraconduit hernia after minimally invasive esophagectomy (MIE) in esophageal adenocarcinoma patients who have received neoadjuvant treatment. Minimally invasive esophagectomies done for patients with neoadjuvant-treated esophageal or esophagogastric junction adenocarcinoma at our institution between 2008 and 2018 were included in this study. All patients with symptomatic or incidentally found paraconduit hernias on computed tomography scans were identified. Patient demographics were analyzed using logistic and Cox regression. The incidence of paraconduit hernia was 14 out of 171 patients (8.2%). The hernia was surgically repaired in 10 (71.4%) of patients. Laparoscopic approach was used in 90% of the repairs, with one (11.1%) conversion to laparotomy. Emergency operations accounted for three (30%) of the operations. The complication rate was 10% ( n  = 1) and 90-day mortality was 10% ( n  = 1). Neither sarcopenia nor muscle mass loss was not associated with paraconduit hernia development, whereas preoperative radiotherapy (OR = 8.57, CI = 1.98–33.8,  p  = .002) was a strong risk factor for paraconduit hernia. Higher BMI had a protective effect (OR = 0.83 per point, 95% CI = 0.69–0.97,  p  = .027). Paraconduit hernia is a relatively common complication after MIE for neoadjuvant-treated adenocarcinoma patients. Preoperative radiotherapy was associated with a higher risk of paraconduit hernia. Minimally invasive repair of paraconduit hernia after esophagectomy is efficient and has a low complication rate both in elective and emergency cases.

Paraconduit hernia after minimally invasive esophagectomy – incidence and risk factors