The European Cancer Congress recently released a cancer detection method that can detect stomach and esophageal cancers by testing five chemicals in the breath. There were 300 participants in this study, and the experimental results showed an accuracy rate of 85 percent. Until now, both cancers have been detected by endoscopic tests, which are not only invasive and expensive, but also carry the risk of complications, according to the researchers. Breath testing, on the other hand, is non-invasive and can help us detect disease early and treat it early. The research team collected breath samples from 335 people who underwent endoscopy, 163 were diagnosed with stomach or esophageal cancer, while the other 172 had no cancer symptoms. Using a breath test, the researchers compared the five chemical components in each sample and the results were very accurate. Cancer cells, unlike non-cancer cells, produce different chemicals, according to the researchers. Currently, the researchers are working to test whether the breath test method can detect, among other cancers, colon cancer. Stomach cancer is not easily detected in the early stage. The most common symptom of early stage stomach cancer is upper abdominal discomfort, such as mild stomach pain, swelling and heaviness, and sometimes vague pain in the heart fossa, which is often diagnosed as gastritis or ulcer disease at first and treated, and the symptoms may be temporarily relieved. If the lesion occurs in the gastric sinus, changes in duodenal function may occur, with rhythmic pain, similar to the symptoms of ulcer disease, which is also easily misdiagnosed as duodenal ulcer and delayed treatment. However, all these symptoms will recur after a period of time. 1.More than 80% of gastric cancer patients will have epigastric pain; 2.About 1/3 of patients will have stuffy stomach, epigastric discomfort, food discomfort, indigestion, accompanied by pantothenia; 3.1/3 of patients may have unexplained weight loss, wasting and fatigue although they have no obvious digestive symptoms; 4.Some patients show symptoms such as pantothenia, heartburn, nausea, vomiting, belching or black stool What tests can be done for early screening of gastric cancer? At present, the most accurate method for early screening of stomach cancer is gastroscopy, so if you have stomach diseases or stomach discomfort, it is better to have a gastroscopy to understand your condition. The following are several means of early screening for gastric cancer: 1. Barium meal x-ray examination The application of digital x-ray gastrointestinal imaging technology is still a common method to diagnose gastric cancer. The diagnosis is often made through the observation of mucosal phase and filling phase by using dual gas-barium imaging. The main change of early gastric cancer is mucosal phase abnormality, and the morphology of progressive gastric cancer is basically the same as the general typing of gastric cancer. 2.Fiber gastroscopy is the most effective method to diagnose gastric cancer because it can directly observe the location and scope of gastric mucosal lesions and obtain lesion tissues for pathological examination. It is the most effective method to diagnose gastric cancer. Using fiberoptic gastroscope with ultrasonic probe to detect and image the lesion area, it is helpful to understand the depth of tumor infiltration and whether there is invasion and metastasis of surrounding organs and lymph nodes. 3.Abdominal ultrasound In the diagnosis of gastric cancer, abdominal ultrasound is mainly used to observe the infiltration and lymph node metastasis of the adjacent organs of stomach (especially liver and pancreas). 4.Spiral ct and positron emission imaging Multi-row spiral ct scan combined with three-dimensional stereo reconstruction and simulated endoscopic technology is a new non-invasive examination means, which is helpful for the diagnosis and preoperative clinical staging of gastric cancer. Using the affinity of gastric cancer tissues for fluorine and deoxy-d-glucose (fdg), positron emission imaging (PET) can determine lymph nodes and distant metastatic lesions with high accuracy.