Ogilvie's syndrome-acute colonic pseudo-obstruction

Area of Science:

• Gastroenterology
• Colorectal Surgery
• Abdominal Imaging

Background:

• Ogilvie's syndrome (acute colonic pseudo-obstruction) presents as colonic and rectal dilation without mechanical obstruction.
• Pathophysiology remains poorly understood, often affecting debilitated patients.
• Computed tomography (CT) is crucial for differentiating from organic obstruction by identifying a characteristic 'cut-off' sign.

Purpose of the Study:

• To review the diagnostic and therapeutic strategies for Ogilvie's syndrome.
• To outline conservative, pharmacologic, and surgical management options.
• To emphasize the importance of excluding mechanical obstruction and managing risk factors for perforation.

Main Methods:

• Initial assessment involves excluding mechanical obstruction via imaging (CT scan).
• Conservative management includes fluid resuscitation and bowel rest.
• Pharmacologic treatment with neostigmine is indicated for non-severe cases; colonic decompression is favored for high-risk cecal dilation.

Main Results:

• Conservative and pharmacologic therapies, including neostigmine and gas decompression, are effective for Ogilvie's syndrome.
• Recurrence can be prevented with rectal tubes and laxatives like polyethylene glycol (PEG).
• Alternative treatments like epidural anesthesia and needle decompression exist, but surgery has high morbidity.

Conclusions:

• Ogilvie's syndrome requires prompt diagnosis to differentiate from mechanical obstruction.
• A stepwise approach, starting with conservative and pharmacologic treatments, is recommended.
• Surgery is a last resort due to associated high morbidity and mortality rates.