Colorectal Arteriovenous Malformations causing Prolonged Bleeding were Managed Successfully by Laparoscopic Low Anterior Resection with Sphincter Preservation: A Case Report.

Gastrointestinal arteriovenous malformations (AVMs) are a rare disease. Sigmoid-anorectal AVM has only been reported in a few cases. The condition is usually detected when patients have gastrointestinal bleeding complications. The diagnosis and treatment of colorectal AVMs are still challenging. This paper presents a case of an Asian 32-year-old female patient admitted to hospital because of lower gastrointestinal bleeding lasting 17 years. The patient was diagnosed with sigmoid-rectal arteriovenous malformation and failed with other medical treatments. The damaged gastrointestinal tract was removed by a laparoscopic low anterior resection. The results were positive after a three-month follow-up; the bleeding was resolved, and the anal sphincter function was intact. Laparoscopic low anterior resection is a safe, less invasive, and effective approach for managing patients with digestive tract bleeding due to extensive colorectal AVM and preservation of the anal sphincter.

Open Surgery Treatment of a Rare Cause of Intestinal Obstruction: Left Paradoudenal Hernia.

An internal hernia is the protrusion of visceral contents through a congenital or acquired defect in the peritoneum or mesentery within the abdominal cavity. In approximately 0.6-5.8% of patients with small intestinal obstruction, the cause is internal hernia, with paraduodenal hernias accounting for approximately 40% of cases. Here, we present the case of a 51-year-old man diagnosed with obstruction of the small intestine caused by a hernia on the left side of the duodenum. The treatment involved returning the bowel loops to the normal position and closing the hernia pocket using Prolene 2.0 sutures. The duration of the surgery was 30 min. Five days later, the patient's condition was stable and he was discharged from the hospital; at the 32-month postoperative follow-up, he remained in stable condition with no recurrence. An abdominal computed tomography scan is valuable for early diagnosis of paraduodenal hernia in the absence of complications, and the cause can be identified and the bowel returned to the normal position by endoscopic surgery, with closure of the hernia pocket if the intestine does not stick to the pocket.