Introduction: Intestinal obstruction in pregnancy is very rare, but the maternal mortality rate and the fetal loss rate are high. Therefore, an early diagnosis and appropriate treatments for small bowel obstructions (SBOs) during pregnancy are crucial for the mothers and fetuses. On the other hand, laparoscopic surgeries are widely used in pregnant patients, although laparoscopic surgeries for SBOs can have higher risks of complications. Then, reduced port surgery (RPS) can reduce the risk of intestinal injury by minimizing the number of ports the operator could not control alone. There is no previous report of RPS for SBOs in pregnant patients. We report on a pregnant patient with a strangulated SBO treated with RPS without complications. Case presentation: A 37-year-old Japanese pregnant woman complaining of severe abdominal pain was admitted by ambulance. Her gestational age was 9 weeks. Her medical history included surgery for acute perforated appendicitis and deep vein thrombosis due to anti-thrombin III deficiency. Abdominal computed tomography revealed a strangulated SBO. We performed RPS and the cause of strangulated SBO was a string at the postoperative site of the appendectomy. The ischemic region of the small bowel recovered after we cut the string and released the adhesion. The patient’s postoperative course was uneventful and the fetus was not harmed. Conclusion: This is the first report of RPS performed for the pregnant patient with the strangulated SBO. Our findings indicate that RPS is a feasible treatment for strangulated SBOs in pregnant women.
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