View clinical trials related to Esophagus.
Filter by:This pilot trial studies how well an ultrasound with a contrast agent (perflubutane microbubble [Sonazoid]) works in identifying sentinel lymph nodes in participants with esophageal cancer. Sentinel lymph nodes are lymph nodes to which the cancer is likely to spread from the primary tumor. Diagnostic procedures, such as contrast-enhanced ultrasound, may work better in identifying sentinel lymph nodes and finding out how far the disease has spread.
Reflux is common, especially after large meals. In general, this can do no harm. However, if reflux occurs often and causes troublesome symptoms and or complications, it is called gastroesophageal reflux disease (GERD). Long exposure to gastric acid causes the mucosa of the esophagus to loose its integrity, which is thought to lead to the symptom of heartburn. Several food products can also impair the esophageal mucosa integrity and thereby influence reflux symptoms. One of these products is capsaicin, the pungent ingredient of red peppers. Use of capsaicin often leads to worsening of complaints in patients with GERD and can cause symptoms in healthy volunteers, possibly due to its effect on the mucosal integrity. In this study the investigators want to investigate the effect of capsaicin infusion on mucosal integrity. The investigators will evaluate mucosal impedance and the histology of the esophageal mucosa. In addition, the investigators also aim to assess the involvement of the TRPV1 receptor by evaluating the possible release of neuropeptides in the esophageal mucosa.