Strongyloidiasis
Introduction
Introduction to faecal roundworm disease The diseased strong nematode disease (strongyloisesstercoralis) is a facultative parasite with generational alternation. Its self-generation is carried out on the ground soil, and the parasitic generation is carried out in the human body. The life history is more complicated and the disease process is long. The clinical symptoms are complex and diverse, mild asymptomatic, severe ulcerative gingivitis in the small intestine and colon, and even death. The domestic insect infection rate is about 10%. basic knowledge The proportion of illness: the incidence rate is about 0.004%-0.007% Susceptible people: no special people Mode of infection: contagious Complications: lung abscess, intestinal obstruction, dehydration
Cause
Etiology of faecal nematode
The filamentous sputum invades the human body through the skin, and the worm body itself and its moving body cause irritation and symptoms.
Prevention
Prevention of faecal nematode
The precautionary principle of this disease is to strengthen the management of feces and water sources, pay attention to personal protection and avoid self-infection, especially before the clinical application of hormonal drugs or immunosuppressive agents, routine examination of A. faecalis should be carried out. Thorough treatment should be given to avoid serious self-infection.
Complication
Complications of faecal nematode Complications lung abscess intestinal obstruction dehydration
1, lung abscess.
2, paralytic ileus.
3. Dehydration.
4, systemic failure.
Symptom
Symptoms of faecal nematode disease Common symptoms Abdominal pain, more odorous... Nausea diarrhea Itching bloating
Most of the disease has no clinical symptoms, but it can cause repeated infections. When the body's resistance is low, if it suffers from various diseases, malnutrition, immunodeficiency or treatment with hormones and other immunosuppressive agents, it can often occur repeatedly. Severe self-infection, severe symptoms, and even death.
1, perianal skin without clinical symptoms
When the filamentous sputum invades through the skin around the anus, the local skin will have edema, tingling and itching, and often accompanied by wire-like or banded urticaria. Because the larva moves faster in the skin, the urticaria spreads. Soon, it has been reported that the spread rate of urticaria in a patient is 10 to 12 cm per hour. The appearance and rapid spread of urticaria in the perianal skin is often an important diagnostic basis for the migration of the larvae of the larvae in the skin.
2, intestinal symptoms and signs
The intestinal symptoms caused by round worms are mainly long-term diarrhea, frequent diarrhea, watery stool or mucus bloody stool, urgency and weight, followed by abdominal pain, mostly in the right upper abdomen, occasionally constipation, often accompanied by nausea , vomiting, there may also be paralytic ileus, abdominal distension, electrolyte imbalance, dehydration, even intestinal perforation, systemic failure and death, some acute patients can excrete sputum, more scented white feces, and even severe fat sputum, its The cause may be related to malabsorption or rupture of the intestinal lymphatic vessels, and fat entering the intestinal lumen.
3, other symptoms and signs
The larvae of the larvae can cause allergic pneumonia and asthma when the lungs migrate. It is characterized by mild fever, cough, sputum, and chest X-ray examination with localized or diffuse inflammatory shadows. The larvae stay in the lungs and develop into adults. The larvae sometimes invade the thoracic cavity and cause pleurisy. In addition, the metabolites and death disintegration products of the worm can cause symptoms of systemic poisoning, such as fever, anemia and neurological symptoms such as irritability, insomnia, etc., which can cause eosinophilic granules in acute infection. The number of cells increases, often reaching 15% to 85%.
Examine
Examination of faecal roundworm disease
1. Conventional stool smear method.
2. Bayesian separation or modified aldehyde ether centrifugation.
3. Immunological examination.
Diagnosis
Diagnosis and identification of faecal nematode
Can be diagnosed based on clinical performance and laboratory tests.
The clinical manifestations of this disease are complex, the course of disease is long, and it is easy to be misdiagnosed. Therefore, it should be differentiated from other diseases. When the main complaint is pus or bloody stool, it should be differentiated from bacterial dysentery, amoebic dysentery and ulcerative colitis. When the main complaint is abdominal pain, it should be differentiated from stomach, duodenal ulcer and acute cholecystitis.
