Endoscopic ultrasound is a technique that involves attaching a thin flexible tube (endoscope) with ultrasound (ultrasound). This allows an ultrasonographic study of certain organs or lesions of the interior of the human body.
What is Echoendoscopy?
During echoendoscopy, the echoendoscope (through the oral cavity or the anal opening) is introduced to study and / or obtain samples of a specific organ or lesion, allowing us to approach the organ in question as much as possible. For this it is necessary that the patient is quiet and collaborate, so the procedure is performed under sedation of the subject.
Thus, echoendoscopy is performed primarily for two purposes:
- To study the state of a certain organ or lesion under the prism of the ultrasound.
- Obtain material to analyze a certain organ or injury: lymphadenopathy, cysts, tumors.
Applications of ecoendoscopy
Echoendoscopy is indicated in the study of benign and malignant tumors , located in the mediastinum (near the esophagus), pancreas, bile duct, and pelvic cavity. This technique evaluates the size of the lesion if it affects neighboring organs or if it affects adjacent lymph nodes. In addition, by puncturing them with a fine needle, material can be obtained which, analyzed by the pathologist, allows the identification of the tumor strain. All this allows establishing and agreeing the best treatment available for the different lesions detected.
This technique, which must be performed by a specialist in Digestive System , also allows assessing and characterizing lesions located below the mucosa of the digestive tract, as well as assessing both the gallbladder (gallbladder and common bile duct) and pancreatic.
Another application is the emptying of some cysts or abscesses near the digestive tract.
Patient Preparation for Echoendoscopy
If the procedure is to be performed under sedation, which is the most common, the patient needs to be fasting for at least 6 hours, as well as follow the pharmacological indications prescribed by the anesthesiologist. You may need to stop taking sintrom or other anticoagulants, or aspirin or plavix or other antiplatelet agents. In this sense, especially if material is to be obtained from an injury, a coagulation study will be essential.
On the other hand, if echoendoscopy is performed through the anal opening, it will require colonic cleansing similar to the one performed for a colonoscopy, but unlike it, usually does not usually require sedation.
Risks of ecoendoscopy
Although this is an exploration with high levels of safety , some type of complication may occasionally occur, whether due to sedation or the procedure.
The health status of the patient is a determining factor in echoendoscopy; it is not the same to perform the procedure on an 80-year-old COPD patient with ischemic heart disease than on a young man without a personal history. For example, by obtaining material from a specific lesion or tumor, it may bleed, become infected, or trigger pancreatitis following a puncture of the pancreas. In general, the percentage of complications is less than 2-3% of the procedures.