Richter's hernia in the laparoscopic era: four case reports and review of the literature.

Richter's hernia can occur at trocar sites after laparoscopic procedures, and 10-mm or larger ports are the usual culprits. Most surgeons now routinely close the fascia of these sites to prevent herniation. The usual presentation is of crampy abdominal pain with nausea and vomiting. Treatment is reduction of the bowel that is incarcerated and then repair of the fascial defect. We describe four cases of Richter's hernia after laparoscopy, two that were repaired by open procedure and two that were repaired laparoscopically, and review the literature. A laparoscopic hernia repair is acceptable treatment at the time of diagnosis, especially in the obese patient, as long as the incarcerated bowel is not compromised or frankly ischemic.