Question of the Week 598

{“questions”:{“kainx”:{“id”:”kainx”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Author: Kanwarpal S. Bakshi, MD \u2013 Children\u2019s Hospital Los Angeles \r\nA 6-month-old infant undergoes tetralogy of Fallot repair and separates uneventfully from cardiopulmonary bypass. After administration of protamine sulfate, the mean arterial pressure (MAP) rapidly decreases from 55 to 35 mmHg. Transesopageal echocardiography (TEE) demonstrates acute RV dilation with severe RV dysfunction, an estimated right […]

Question of the Week 597

{“questions”:{“kipaa”:{“id”:”kipaa”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Author: Amy Babb, MD – Yale University, School of Medicine – Yale New Haven Hospital \r\nA baby is born at 31 weeks\u2019 gestation, weighing 1.6 kg. He is diagnosed with a discrete coarctation of the aorta, normal sized aortic arch and normal intracardiac anatomy. Prostaglandin infusion is started to maintain systemic perfusion. The patient has […]

Question of the Week 596

{“questions”:{“v6qcw”:{“id”:”v6qcw”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Author: Amy Babb, MD – Yale University, School of Medicine – Yale New Haven Hospital \r\nA 4-year-old undergoes an extracardiac Fontan procedure. On post-operative day 3, chest tube output increases and becomes milky after initiation of enteral feeds. Which mechanism MOST contributes to the increased risk of chylothorax in patients with Fontan physiology?”,”desc”:”EXPLANATION \r\n\tChylothorax is […]

Question of the Week 595

{“questions”:{“cmhv5”:{“id”:”cmhv5″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Author: Amy Babb, MD – Yale University, School of Medicine – Yale New Haven Hospital \r\n\r\nA 3-week-old boy recovering from an aortic arch reconstruction is found to have unilateral vocal cord paralysis. Swallowing study demonstrates aspiration of thin liquids. Injection laryngoplasty is scheduled. What is the primary mechanism by which injection laryngoplasty improves vocal cord […]

Question of the Week 594

{“questions”:{“r76ap”:{“id”:”r76ap”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Author: Amy Babb, MD – Yale University, School of Medicine – Yale New Haven Hospital \r\nA 15-year-old undergoes catheter ablation for a left-sided accessory pathway. The electrophysiologist requests high-frequency jet ventilation (HFJV) for the case. What would be the primary advantage of HFJV compared to conventional ventilation?\r\n”,”desc”:”EXPLANATION \r\nDuring catheter ablation procedures, the choice of ventilation […]