Release date: 2008-07-08
Endoscopic ultrasound can effectively detect lung cancer
Endoscopic ultrasound is one of the least traumatic methods for detecting lung cancer. By inserting a probe with a camera on the top of the esophagus, it is possible to accurately and safely determine the benign and malignant conditions of the lung mass.
Gastroenterology specialists at the Duke University Medical Center in the United States evaluated 18 clinical endoscopic ultrasound findings and concluded that endoscopic ultrasound should be used as a routine test for assessing suspected malignant masses. In the report, the researchers said that if endoscopic ultrasonography can be widely used clinically, nearly one-third of patients with suspected lung cancer will be able to determine the tumor's good and bad without further traumatic examination. Status and staging.
The key to the success of lung cancer treatment is to correctly determine the type of tumor and whether it has metastasized. Using endoscopic ultrasound as a means of examination, doctors can sometimes see the mass directly, and more importantly, the doctor can extract the patient's tumor tissue sample by endoscopy during the examination, and use the sample to determine whether the cancer has been transferred to the vicinity. Tissue or lymph nodes. The pathologist can quickly determine whether the tumor is malignant through the sample.
The research results have been published in the February 2007 issue of Chest. Dr. Frank Gress, a member of the research team, said the results should be able to change the staging method for certain types of lung cancer.
The study used a meta-analysis method—the researchers pooled 18 small-scale clinical trials to evaluate whether endoscopic ultrasound can accurately detect 1,201 non-small cell lung cancers. The patient's cancer spread. About 80% of lung cancer patients are non-small cell lung cancer, and this type of lung cancer spreads rapidly.
The researchers found that endoscopic ultrasound was effective in detecting 83% of patients without chest lymph node metastasis and identifying 97% of patients with existing lymph node metastasis.
Dr. Gress said that if endoscopic ultrasound is widely used clinically, about 30% of lung cancer patients no longer have to undergo more traumatic examinations. In these invasive examinations, some even require the patient to receive general anesthesia so that the surgeon can surgically extract tissue samples from his lungs.
Currently, researchers are working to evaluate the cost-effectiveness of endoscopic ultrasound. ——Midi Medical Network
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