Branham Sign Following PDA Closure in a 6-Month-Old Bichon with PDA and VSD

This video shows the hemodynamic changes associated with the Branham sign following PDA occlusion using a K-Plug, a Korean-made vascular occlusion device. The patient was a 6-month-old Bichon diagnosed with both patent ductus arteriosus (PDA) and ventricular septal defect (VSD). Following deployment of the K-Plug for PDA occlusion, a transient change in heart rate and arterial blood pressure was observed on the anesthesia monitoring system, consistent with the Branham sign. The Branham sign, also known as the Nicoladoni-Branham sign, refers to a characteristic hemodynamic response following sudden occlusion of a significant arteriovenous shunt. In PDA closure, it may be observed as a transient increase in systemic arterial blood pressure accompanied by a decrease in heart rate. Patient: 6-month-old Bichon Diagnosis: Patent ductus arteriosus (PDA) + ventricular septal defect (VSD) Procedure: Transcatheter PDA occlusion Device: K-Plug Focus: Branham sign and hemodynamic changes following PDA occlusion This video is intended for educational purposes and may be of interest to veterinary cardiologists, anesthesiologists, surgeons, and veterinary students interested in interventional cardiology and perioperative hemodynamic monitoring.