How to detect duodenal obstruction

Duodenal obstruction can be diagnosed through imaging examinations, laboratory tests and endoscopic examinations, including upper gastrointestinal tract barium meals, abdominal CT, gastroscopy and other methods, combined with medical history and symptom analysis to comprehensively judge the condition.

1) Imaging examination

Upper gastrointestinal tract barium meal radiography is a common method for diagnosing duodenal obstruction. By taking barium orally and then taking X-rays, the specific morphology and functional abnormalities of the obstruction site can be observed. Abdominal CT scans are more accurate and can clearly show the anatomical structure of duodenal obstruction and the pathological state of surrounding tissues, helping to determine the cause of the obstruction, such as tumors, inflammation, or compressive lesions. Ultrasound examination technology can also be used to preliminarily evaluate whether obstruction exists, especially when it is clear that there are vascular or lymph node lesions around the duodenum.

2) Endoscopic examination

Gastroscopy is a necessary and commonly used diagnostic tool. By directly observing the inside of the duodenum, it can determine whether there is a tumor, ulcer or compressive lesion causing obstruction. It can also obtain tissue biopsy for pathological analysis to help identify the nature of the disease. Endoscopic ultrasound (EUS) can also be used as a supplementary examination method to better evaluate the surrounding tissues.

3) Laboratory tests

Although laboratory tests cannot directly diagnose duodenal obstruction, they can detect whether there are secondary metabolic abnormalities. Blood electrolyte tests often show potassium and sodium ion disorders; at the same time, patients may have anemia or infection, and these results are of reference value for the comprehensive evaluation of the disease. When tumor-related causes are suspected, specific tumor markers such as CEA and CA19-9 can be tested to assist in determining the nature of the lesion.

4) Medical history and physical examination

The patient's medical history and symptoms are also important bases for diagnosis. For example, patients with long-term indigestion, nausea and vomiting, chronic abdominal distension, etc., especially those whose symptoms worsen after eating, may be initially suspected of duodenal obstruction. Physical examination may reveal signs of abdominal distension or gastrointestinal bloating.

The cause and severity of duodenal obstruction can be determined through comprehensive methods such as imaging examinations, gastroscopy, and pathological analysis. Once the diagnosis is clear, a treatment plan should be formulated based on the specific cause, such as surgery to relieve the obstruction, medication to relieve symptoms, or treatment of the primary disease. If there are abnormal symptoms, medical treatment should be sought as soon as possible to avoid delaying the progression of the disease.