What is Petersen hernia?

Petersen hernia is a specific type of hernia where the small bowel moves into the potential space between the caudal surface of the transverse mesocolon and the edge of the Roux limb.

What is an internal hernia from surgery?

Internal hernia is a rare cause of obstruction which may require emergent surgery and is defined as the extension of a viscus through a normal or abnormal orifice within the peritoneal cavity.

What are the symptoms of an internal hernia after gastric bypass?

The clinical presentation of internal hernia ranges from intermittent pain, often in the left upper abdomen through more constant abdominal pain, with or without nausea and vomiting to severe, acute abdominal pain.

Where is a Petersen hernia?

Petersen’s space hernia is caused by the herniation of intestinal loops through the defect between the small bowel limbs, the transverse mesocolon and the retroperitoneum, after any type of gastrojejunostomy.

Is an internal hernia an emergency?

Conclusion: Internal hernia is a rare but lethal condition. Early diagnosis and prompt surgical intervention provide the only chance of a successful outcome.

Is it common to get a hernia after gastric bypass surgery?

In postoperative bariatric patients, internal hernias are one of the more common postoperative complications, reported in 2-3% of patients. Hernias following RYGB surgery have a high risk of torsion and bowel ischemia, and they require prompt recognition and surgical treatment.

What is the most common internal hernia?

Internal hernias, including paraduodenal (traditionally the most common), pericecal, foramen of Winslow, and intersigmoid hernias, account for approximately 0.5-5.8% of all cases of intestinal obstruction and are associated with a high mortality rate, exceeding 50% in some series.

What is a Peterson defect?

How rare is an internal hernia?

Internal hernia is a rare cause of small bowel obstruction. The incidence is only 0.2–0.9 %.

Can an internal hernia recur?

A hernia can reappear for a variety of reasons, some of which may not always be clear. The following circumstances can place patients at an increased risk of a recurrent hernia: Infection of wound from initial hernia surgery. Being too active too soon after surgery.

Is an internal hernia painful?

Congenital internal hernias are a rare condition that often presents with abdominal pain and can lead to obstruction. Early diagnosis is often difficult and therefore can present acutely and in an emergent setting. Prompt recognition of symptoms and evaluation are important to prevent poor prognosis.

What is the role of laparoscopic surgery in the treatment of Petersen hernia?

Petersen hernia. The laparoscopic approach facilitates the occurrence of this type of hernia, due to the lack of post-operative adhesions which prevent bowel motility and hence, herniation.

How is internal herniation diagnosed in Petersen’s space?

Diagnosing an internal herniation through Petersen’s space is difficult due to the nonspecific clinical presentation. The interpretation of the CT scan poses another diagnostic challenge. This sign is present in 74% of the cases with this herniation. A missed diagnosis of internal herniation may cause potentially serious complications.

Does Petersen’s defect cause incarcerated bowel hernia?

Intraoperative findings showed incarcerated bowel hernia from Petersen’s defect. The incarcerated bowel was reduced, and the defect was repaired. The patient was discharged 2 days after operation.

What is the Petersen space in colonoscopy?

Petersen’s space is the space between the afferent loop mesentery of gastrojejunostomy and the lower part of transverse colon mesentery that is created after gastrojejunostomy in some procedures such as RYGB and OAGB [ 3