Acute pseudo-obstruction of the large bowel with caecal perforation following normal vaginal delivery: a case report
© Cartlidge and Seenath; licensee BioMed Central Ltd. 2010
Received: 22 October 2009
Accepted: 29 April 2010
Published: 29 April 2010
Acute pseudo-obstruction of the large bowel following normal vaginal delivery is an extremely rare complication of normal vaginal delivery. It can be fatal if not recognized early. Only one previous report has been found in the English literature.
A 36-year old Caucasian, normally fit woman presented with abdominal distension and vomiting five days post-normal vaginal delivery at term. Localised peritonitis in the right iliac fossa developed in the next few days, and caecal perforation was found at laparotomy, without evidence of appendicitis or colitis.
Although very rare, Ogilvie's syndrome should be considered by obstetricians, general surgeons and general practitioners as a potential cause of vomiting and abdominal pain following normal vaginal delivery. Early recognition and management are essential to minimize the possibility of developing serious complications.
Ogilvie's syndrome is a rare but potentially life-threatening obstetric complication consisting of an acute pseudo-obstruction of the large bowel . The most important potential complication of the condition is large bowel perforation with subsequent fecal peritonitis and associated high mortality . Several cases of colonic perforation secondary to Ogilvie's syndrome have been reported following Caesarian section, but only one report in the English literature was found at the time of writing that has described the condition post-normal vaginal delivery .
A 36-year-old Caucasian woman was admitted to our hospital with abdominal distension, pain and vomiting five days following the normal vaginal delivery of her second child born at term. Our patient was normally fit and well with a medical history of recurrent urinary tract infections and mild asthma. Folic acid tablets were the only medications that our patient had been taking during the course of her pregnancy, and there was no history of constipation. Her vaginal delivery had been uncomplicated except for a third degree tear during delivery, which requires suturing in theatre. Our patient had been commenced on laxatives following the repair of the perineal tear, and showed no symptoms of perineal sepsis.
The exact etiology of Ogilvie's syndrome is unknown, but it has been associated with several disease processes such as trauma, abdominal and/or pelvic surgery, and sepsis . Bed rest and abnormal electrolytes are also listed as factors associated with the development of the syndrome , and Strecker et al. reported that the association between Ogilvie's syndrome and vaginal delivery may be due to the declining serum oestrogen levels in the post-partum period . In the only other reported case of Ogilvie's syndrome following normal vaginal delivery in the English literature, the histological findings of the caecum after right hemicolectomy showed no specific pathology .
The mechanism of the condition is thought to involve loss of tone in the parasympathetic nerves S2 to S4. This, in turn, results in an atonic distal colon and pseudo-obstruction . Various sources report a cut-off sign relating to an area of dilated and collapsed bowel around the splenic flexure corresponding to the transition zone between the vagal and sacral parasympathetic nerve supplies [4, 7]. The cut-off sign is used to support the hypothesis of parasympathetic inhibition causing Ogilvie's syndrome [4, 7].
The diagnosis of Ogilvie's syndrome is widely reported to be troublesome due to the non-specific clinical features . Abdominal distension is considered to be the common symptom, and Jetmore et al. report no known cases of Ogilvie's syndrome to have presented without distension of the abdomen . As with any case of suspected ileus or obstruction, electrolyte levels are an essential investigation and in the 48 cases of Ogilvie's syndrome reported by Jetmore et al., 83% demonstrated at least one electrolyte disturbance with hypocalcaemia being the most common . Abdominal radiography is a standard first-line investigation, and Keswani et al. reported that a caecal diameter of nine cm or more is the 'only definitive sign of imminent perforation' .
Several sources have discussed non-surgical management options with decompression of the bowel with intravenous fluid support as the standard of treatment. Jetmore et al. advocate for colonoscopic decompression as a successful method of avoiding surgical management, unless signs of peritonism are evident . Stephenson et al. have shown that the use of prokinetic, parasympathomimetic drugs such as neostigmine can be successful in the management of Ogilvie's syndrome, although the benefit in cases of idiopathic Ogilvie's syndrome is not certain . With regard to post-partum patients, Strecker et al. support the use of laxatives in the post-partum period and stress the importance of early diagnosis .
Ogilvie's syndrome following normal vaginal delivery in pregnant women is an extremely rare but serious condition requiring early recognition and treatment to prevent potentially fatal complications. General practitioners, obstetricians and surgeons must be aware of the non-specific presenting features and exercise a high index of suspicion of otherwise unexplained abdominal distension in the post-partum period.
Written consent was obtained from our patient for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
The authors would like to thank the subject of this case report who gave her written consent for its production.
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