Applying Non-invasive Hemodynamic Monitor to Predict the Risk of Perioperative Hypotension in Geriatric Patients Underwent Endoscopic Invasive Procedure

Invasive endoscopy procedure including Endoscopic Retrograde Cholangio-Pancreatography (ERCP), endoscopic ultrasound guided fine needle aspiration (EUS-FNA), Endoscopic Retrograde Biliary Drainage (ERBD) and others is more and more popular which become the standard treatment before surgical intervention. However; the elder group who need this procedure is getting more common. The painless endoscopic sedation for elder group who has more comorbidity is not easy. During the procedure, the investigators found that the anticholinergic medication-buscopam which in order to suppress intestine mobilization can cause obvious tachycardia. Tachycardia makes the stroke volume decrease which enhance the perioperative hypotension, and the vasodilation effect of the analgesics make it worse.

Investigators are trying to find the non-invasive predictor of perioperative hypotension in geriatric group. Investigators collected the patients who need painless endoscopic invasive procedure, investigators will record their hemodynamic data including estimated cardiac output (CCO)，index of contractility (ICON)，NBP，HR，and saturation. Investigators also add the evaluation of frailty to evaluate the relationship between frailty and perioperative complications.