Peritonitis is an infection caused by an inflammation of the lining of the abdominal cavity, known as the peritoneum. The peritoneum, a thin, clear membrane, normally covers all the abdominal organs and the inside walls of the abdomen.
Most often, peritonitis is caused by the introduction of an infection from a perforation of the bowel such as a ruptured appendix or diverticulum. Other sources include perforations of the stomach, intestine, gallbladder, or appendix. Pelvic inflammatory disease in sexually active women is also a common cause of peritonitis. Peritonitis can also develop after surgery when bacteria can enter into the abdomen during an operation.
The following are the most common symptoms of peritonitis. However, each individual may experience symptoms differently. Symptoms may include:
- severe abdominal pain, aggravated by any motion
- nausea and vomiting
- abdominal tenderness or distention
- fluid in the abdomen
The symptoms of peritonitis may resemble other medical conditions or problems. Always consult your physician for a diagnosis.
Quick diagnosis of peritonitis is vital as complications can occur quickly. In addition to a complete medical history and physical examination (which may show abdominal tension and tenderness), diagnostic tests for peritonitis may include the following:
- x-rays - a diagnostic test which uses invisible electromagnetic energy beams to produce images of internal tissues, bones, and organs onto film.
- laboratory tests (to identify the infectious organism)
- exploratory surgery
Specific treatment for peritonitis will be determined by your physician based on:
- your age, overall health, and medical history
- extent of the condition
- your tolerance of specific medicines, procedures, or therapies
- expectations for the course of the condition
- your opinion or preference
Treatment of peritonitis is generally aimed at treating the underlying condition. Often, emergency exploratory surgery is needed, especially when appendicitis, a perforated peptic ulcer, or diverticulitis may be the cause of the infection. Prompt treatment is extremely important as major complications can occur quickly and peritonitis can be fatal if not treated right away.
Antibiotics are given immediately once peritonitis has been diagnosed. Sometimes, a tube is inserted through the nose into the stomach or intestine to drain fluid and gas. Intravenous (IV) fluids are also given to replace fluids that have been lost.
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