B O Aicher1, J Woodall2, B Tolaymat2, C Calvert2, T S Monahan2,3, S Toursavadkohi2,3. 1. Division of Vascular Surgery, Department of Surgery, University of Maryland School of Medicine, 22 South Greene Street, S8B02, Baltimore, MD, 21201, USA. baicher@som.umaryland.edu. 2. Division of Vascular Surgery, Department of Surgery, University of Maryland School of Medicine, 22 South Greene Street, S8B02, Baltimore, MD, 21201, USA. 3. Center for Aortic Disease, University of Maryland Medical Center, 22 South Greene Street, S8B02, Baltimore, MD, 21201, USA.
Abstract
PURPOSE: Incisional hernias complicate 12-15% of general surgery cases with higher rates reported after laparotomy for aortoiliac occlusive disease (10-17%) and aneurysmal disease (17-38%). We hypothesize that inadequate perfusion of the abdominal wall promotes future hernia development. METHODS: Thirty-eight patients undergoing midline laparotomy or thoracoabdominal approach for aortic disease with at least 2 years of follow-up were included in the study. Preoperative imaging was reviewed to assess vessel patency, contributing to the abdominal wall perfusion. Patency of the superior epigastric artery was determined at the T10 level, the inferior epigastric artery at the L4 level, and the deep circumflex iliac artery at the anterior superior iliac spine. Lumbar arteries were considered patent if they were seen branching from the aorta. Clinic notes and hospital medical records were reviewed to evaluate the hernia development post-procedure. RESULTS: Thirteen patients (34%) developed an incisional hernia. Absent flow from bilateral superior epigastric arteries or absent flow from ipsilateral superior and inferior epigastric arteries was found to be predictive of hernia development (P = 0.013, 0.011, respectively). There was no association identified with perfusion from the lumbar or deep circumflex iliac arteries. CONCLUSIONS: Absent patency of the abdominal wall vasculature is a novel risk factor for incisional hernia development in the setting of aortic disease. Preoperative assessment of perfusion may convey the risk of hernia development and may be a tool to guide measures such as prophylactic mesh placement to reduce the future risk of incisional hernia.
PURPOSE: Incisional hernias complicate 12-15% of general surgery cases with higher rates reported after laparotomy for aortoiliac occlusive disease (10-17%) and aneurysmal disease (17-38%). We hypothesize that inadequate perfusion of the abdominal wall promotes future hernia development. METHODS: Thirty-eight patients undergoing midline laparotomy or thoracoabdominal approach for aortic disease with at least 2 years of follow-up were included in the study. Preoperative imaging was reviewed to assess vessel patency, contributing to the abdominal wall perfusion. Patency of the superior epigastric artery was determined at the T10 level, the inferior epigastric artery at the L4 level, and the deep circumflex iliac artery at the anterior superior iliac spine. Lumbar arteries were considered patent if they were seen branching from the aorta. Clinic notes and hospital medical records were reviewed to evaluate the hernia development post-procedure. RESULTS: Thirteen patients (34%) developed an incisional hernia. Absent flow from bilateral superior epigastric arteries or absent flow from ipsilateral superior and inferior epigastric arteries was found to be predictive of hernia development (P = 0.013, 0.011, respectively). There was no association identified with perfusion from the lumbar or deep circumflex iliac arteries. CONCLUSIONS: Absent patency of the abdominal wall vasculature is a novel risk factor for incisional hernia development in the setting of aortic disease. Preoperative assessment of perfusion may convey the risk of hernia development and may be a tool to guide measures such as prophylactic mesh placement to reduce the future risk of incisional hernia.
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