Gastrointestinal Obstruction

Chapter: Gastrointestinal Obstruction
McMaster Section Editor(s): Peter Lovrics
Section Editor(s) in Interna Szczeklika: Witold Bartnik, Władysław Januszewicz
McMaster Author(s): Paul Lysecki, Kamyar Kahnamoui
Author(s) in Interna Szczeklika: Jan Ciećkiewicz
Additional Information

Clinical Features And Natural HistoryTop

Symptoms of acute gastrointestinal obstruction may include:

1) Abdominal pain.

2) Nausea and vomiting.

3) Retention of gas and stools.

Causes of gastrointestinal obstruction can be broadly characterized as being mechanical or functional in nature. Regardless of the cause, impairment of intestinal transit causes an increase in intestinal secretion and a decrease in intestinal reabsorption of fluids, thus leading to hypovolemia. Patients with adynamic ileus (especially caused by peritonitis) or mechanical obstruction in whom effective treatment is not started may develop dehydration, severe blood loss, hypotension, shock, multiple organ failure, and death.

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