Perioperative Point-of-Care Ultrasound

Eligibility Details: Inclusion Criteria: - Patients aged >17 years - Undergoing urgent or emergent non-cardiac surgery classified as intermediate or high risk according to American Heart Association(AHA)/American College of Cardiology(ACC) guidelines. These include vascular surgeries (supra or infra-inguinal), intraperitoneal surgeries, intra-thoracic surgeries, head and neck surgeries, spine surgeries, urologic surgeries, and proximal extremity orthopedic surgeries. Peripheral extremity surgeries (wrist or below, and ankle or below), in addition to appendectomies and cholecystectomy surgeries will be excluded from this study. Exclusion Criteria: - Patients scheduled for elective or pre-booked surgeries - Patients undergoing cardiac surgeries - Patients undergoing low risk procedures e.g. endoscopic procedures, superficial skin, subcutaneous tissue, breast, ophthalmic, and ambulatory surgeries - Patients undergoing orthopedic peripheral extremity surgeries (e.g. ankle, wrist, hand, foot) - Patients who have had an echo during the current hospital admission prior to recruitment. - Patients where the investigator performing or over-reading the POCUS scan is required to participate directly in perioperative patient care (e.g. anesthesiologist co-investigator performing or over-reading scan is on-call for this emergency case)