Abdominal infection

Introduction Abdominal infections include acute cholecystitis and biliary tract infections, bacterial liver abscesses, acute peritonitis, and bacterial infections secondary to acute pancreatitis. Usually, the mixed infection of anaerobic bacteria such as Enterobacteriaceae, Enterococcus and Bacteroides is also harmful. For example, the secretion of a large amount of exudate can cause symptoms of poisoning caused by malabsorption of body fluid and electrolyte imbalance.

Cause

Causes

It can be caused by bacterial infection, chemical stimulation or damage. It is usually a mixed infection of anaerobic bacteria such as Enterobacteriaceae, Enterococcus and Bacteroides, and is more acute.

Mainly manifested as persistent severe abdominal pain, and can be aggravated with abdominal activity, so patients often want to take a fixed position to limit abdominal breathing. Patients often have fever, pulse speed, abdominal muscles are tight, and there are clinical manifestations such as tenderness of peristalsis and increased white blood cell count in the blood. Severe patients may have shock. Autologous fibrin deposits around the lesion, creating adhesions that prevent the spread of inflammation.

an examination

Related inspection

Abdominal plain film laparoscopic abdominal MRI examination abdominal CT abdominal auscultation

1, laparoscopic observation, serum C-reactive protein and B-ultrasound.

2, persistent abdominal pain, abdominal muscle tension, tenderness and rebound pain and other peritoneal irritation signs, accompanied by fever, blood leukocytosis and other systemic infections and poisoning.

3, the scope of inflammation, limited range of peritonitis, mild symptoms, slow development; diffuse peritonitis a wide range, severe symptoms, rapid development, systemic poisoning phenomenon, still need to further clarify the cause, looking for the primary lesion.

4. Diagnostic abdominal puncture test can be performed when the diagnosis is difficult, and the ascites is exudative fluid.

Differential diagnosis

Differential diagnosis of abdominal infection:

1. Underarm infection: The underarm abscess is a secondary infection, and its location is related to the primary disease. The localized empyema located below the diaphragm, in the transverse colon and above the mesentery is collectively referred to as the subphrenic abscess. The right posterior interhepatic abscess is the most common, and the cause is related to the influence of lymphatic flow and respiratory movement. The intra-abdominal pressure in this space of the abdominal cavity is the lowest. Followed by the right subhepatic space and the right upper anterior space abscess, the left axillary abscess is relatively rare.

2, appendix infection: appendix is a degenerative organ of humans (the herbivore's appendix is very developed), about 7-9 cm long, about 0.5 cm in diameter, located in the lower right side of the abdomen, the inside of the cecum, the proximal end and the cecum Interconnected, remotely blocked. Because the appendix cavity is small, it is a blind tube. Food debris and fecal stones can easily fall into the cavity and block the lumen causing inflammation. The body surface projection is called MacBurney point, which is located outside the right anterior superior iliac spine to the umbilical cord. At the middle 1/3 junction, there is tenderness at the point of appendicitis. The appendix in adults is mainly related to immune function. Soon after birth, lymphoid tissue begins to accumulate in the appendix, peaks at around 20 years old, then rapidly declines, and disappears after 60 years of age. However, at the stage of physical development, the appendix can function as a lymphoid organ, promoting the maturation of B lymphocytes (a type of white blood cells) and the production of immunoglobulin class A antibodies. The researchers also showed that the molecules involved in the production of the appendix help lymphocytes transfer to other parts of the body. Most infections of the appendix appear after surgery.

diagnosis:

Laparoscopic observation, serum C-reactive protein and B-ultrasound can be diagnosed.

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