82. Case Report: L-TGA with Double Inlet LV post-Fontan complicated by VF Arrest Stanford University

Published: Nov. 6, 2020, 4:33 a.m.

CardioNerds (Amit Goyal & Daniel Ambinder) join Stanford cardiology fellows (Pablo Sanchez, Natalie Tapaskar, Jimmy Tooley) for tacos while enjoying the sunshine on the Stanford Oval! They recount the story of a man with adult congenital heart disease (ACHD): L-TGA (levo-transposed great arteries) with double inlet LV post-Fontan complicated by VF arrest. Dr. Christiane Haeffele provides the E-CPR and program director Dr. Joshua Knowles provides a message for applicants. Episode notes were developed by Johns Hopkins internal medicine resident Evelyn Song with mentorship from University of Maryland cardiology fellow Karan Desai and Cleveland clinic cardiology fellow Josh Saef. \n\n\n\n\n\n\n\n\n\nJump to: Patient summary - Case media - Case teaching - References \n\n\n\n\n\n\n\nThe\xa0CardioNerds Cardiology Case Reports\xa0series shines light on the hidden curriculum of medical storytelling. We learn together while discussing fascinating cases in this fun, engaging, and educational format. Each episode ends with an\xa0\u201cExpert CardioNerd Perspectives & Review\u201d (E-CPR)\xa0for a nuanced teaching from a content expert. We truly believe that hearing about a patient is the singular theme that unifies everyone at every level, from the student to the professor emeritus.\n\n\n\nWe are teaming up with the\xa0ACC FIT Section\xa0to use the\xa0#CNCR episodes\xa0to showcase CV education across the country in the era of virtual recruitment. As part of the recruitment series, each episode features fellows from a given program discussing and teaching about an interesting case as well as sharing what makes their hearts flutter about their fellowship training. The case discussion is followed by both an\xa0E-CPR\xa0segment and a message from the program director.\n\n\n\nCardioNerds Case Reports PageCardioNerds Episode PageCardioNerds AcademySubscribe to our newsletter- The HeartbeatSupport our educational mission by becoming a Patron!Cardiology Programs Twitter Group created by Dr. Nosheen Reza\n\n\n\n\n\n\n\n\n\n\n\nPatient Summary\n\n\n\nA man in his mid-30s with past medical history notable for L-TGA (levo-transposed great arteries) with double inlet LV s/p Fontan palliation was playing golf when he suddenly collapsed.\u202f EMS arrived after three minutes of bystander CPR. An AED indicated the patient had suffered a VF arrest. ROSC was achieved after 1 round of Epi and 1 shock delivered. He was intubated and started on targeted temperature management protocol.\xa0Home medications were\xa0 notable for digoxin 0.25mg daily, sotalol 120mg BID, and warfarin 5mg daily. Initial labs were notable for Na 127, K 5.4, Cr 1.0 (unknown baseline), INR 4.5, Lactate 4.6, Troponin-I\xa00.532, VBG 7.06/61, and\xa0random\xa0Digoxin level 2.7.\u202f EKG showed AV sequential pacing at a rate of 70 bpm. QTc prolonged at 571ms. No ischemic ST changes. Device interrogation showed sustained VT for 5 minutes prior to external shock. No internal shock was delivered.\xa0He was initially stabilized and his acidosis and hyperkalemia were corrected.\xa0Course was complicated by hemoptysis due to alveolar hemorrhagic and he was given concentrated prothrombin complex to reverse his coagulopathy. He eventually stabilized, and a formal TTE was obtained which showed a hypoplastic RV, single dilated LV with an akinetic posterior wall and hypokinetic lateral wall, all\xa0similar\xa0to his prior TTE in 2019. No obstruction noted at the IVC/Fontan anastomotic site. Coronary angiogram performed after his kidney function improved also did not show any significant obstructions or coronary anomalies. After multidisciplinary discussion, his VF arrest was attributed to a combination of prior ventricular fibrosis/scar,\xa0suspected\xa0digoxin toxicity, sotalol, dehydration, and renal failure. He had a subcutaneous ICD lead placed and was ultimately discharged home.\xa0\n\n\n\n\n\n\n\nCase Media\n\n\n\n\nABClick to Enlarge\n\n\n\nA. CXRB. ECG \n\n\n\n\n\n\n\n\nEpisode Schematics & Teaching\n\n\n\n\n\n\n\nThe CardioNerds 5! \u2013 5 major takeaways from the #CNCR case\n\n\n\nWhat's Transposition of the Great Arteries (TGA)?