Gustavo S. Guandalini, MD
Assistant Professor of Clinical Medicine (Cardiovascular Medicine)
Department: Medicine
Contact information
The Pavilion at the Hospital of the University of Pennsylvania
Level 2/City Side, Cardiac Electrophysiology Program
One Convention Avenue
Philadelphia, PA 19104
Level 2/City Side, Cardiac Electrophysiology Program
One Convention Avenue
Philadelphia, PA 19104
Office: 215-614-1889
Fax: 215-615-5441
Fax: 215-615-5441
Publications
Education
MD (Medical School)
Federal University of Paraná, Curitiba, Brazil, 2007.
Permanent linkMD (Medical School)
Federal University of Paraná, Curitiba, Brazil, 2007.
Selected Publications
Tan JL, Chirinos J, Patel D, Jagasia D, Hyman MC, Guandalini GS, Nazarian S, Lin D, Supple G, Frankel DS, Callans DJ, Marchlinski FE, Ren JF, Markman TM.: Intracardiac echocardiography for left ventricular diastolic function assessment during atrial fibrillation ablation. Intracardiac echocardiography for left ventricular diastolic function assessment during atrial fibrillation ablation. Journal of Interventional Cardiac Electrophysiology 69(1): 53-62, 2026.Oraii A, Afzalian A, Chaumont C, Rodriguez-Queralto O, Liao TE, Gad MM, Zaidi SMM, Zado E, Tschabrunn CM, Hanumanthu BKJ, Hyman MC, Markman TM, Guandalini G, Kumareswaran R, Deo R, Riley MP, Lin D, Garcia FC, Nazarian S, Supple GE, Schaller RD, Frankel DS, Callans DJ, Dixit S, Marchlinski FE. : Role of non-pulmonary vein triggers in outcomes of first-time atrial fibrillation ablation. JACC: Clinical Electrophysiology 12(5): 1037-1047, 2026.
Boyle TA, Callans DC, Deo R, Dixit S, Enriquez A, Epstein AE, Garcia F, Guandalini G, Hanumanthu BK, Hyman MC, Kumareswaran R, Lin D, Marchlinski FE, Markman TM, Mirwais M, Nazarian S, Riley M, See V, Shivamurthy P, Supple GE, Schaller R, Frankel DS.: Quantitative vector screening to improve sensing and reduce inappropriate shocks with the subcutaneous implantable cardioverter-defibrillator. Circulation: Arrhythmia and Electrophysiology 19(5): e014581, 2026.
Guandalini GS: Combined endocardial radiofrequency and pulsed-field left ventricular summit ablation: With great power comes great responsibility. JACC: Case Reports 30(41): 1-2, 2025.
Enriquez A, Yogasundaram H, Neira V, Guandalini G, Markman T, Shivamurty P, Hyman M, Hanumanthu BK, Lin D, Schaller R, Supple G, Dixit S, Deo R, Nazarian S, Kumareswaram R, Riley M, Epstein A, Zado E, Callans D, Frankel D, Marchlinski F, Garcia F.: Stepwise anatomical approach to ablation of intramural outflow tract ventricular arrhythmias guided by septal coronary venous mapping. Circulation 152(3): 163-171, 2025.
Raad M, Oranefo J, Yogasundaram H, Gurin MI, Zado E, Walsh M, Markman T, Guandalini G, Hyman MC, Schaller R, Kumareswaran R, Supple G, Deo R, Nazarian S, Riley M, Lin D, Garcia F, Frankel DS, Callans D, Epstein AE, Marchlinski FE, Dixit S.: Temporary restoration of sinus rhythm improves outcomes of catheter ablation for longstanding persistent atrial fibrillation. Journal of Cardiac Electrophysiology 36(8): 1966-1972, 2025.
Oraii A, Chaumont C, Rodriguez-Queralto O, Wasiak M, Thind M, Peters CJ, Zado E, Hanumanthu BKJ, Markman TM, Hyman MC, Tschabrunn CM, Guandalini G, Enriquez A, Shivamurthy P, Kumareswaran R, Riley MP, Lin D, Schaller RD, Nazarian S, Callans DJ, Supple GE, Garcia FC, Frankel DS, Dixit S, Marchlinski FE.: Preprocedural screening tool to guide nonpulmonary vein trigger testing in first-time atrial fibrillation ablation. Circulation: Arrhythmia and Electrophysiology 18(1): e013351, 2025.
Petzl AM, Oranefo J, Oraii A, Riley M, Lin D, Kumareswaran R, Schaller RD, Supple GE, Markman TM, Guandalini G, Hyman MC, Frankel DS, Epstein AE, Nazarian S, Garcia FC, Deo R, Callans DJ, Marchlinski FE, Dixit S.: Outcomes in patients with cardiac amyloidosis undergoing catheter ablation for atrial arrhythmias. Heart Rhythm O2 6(8): 1088-1096, 2025.
Boyle T, Callans D, Deo R, Garcia F, Guandalini G, Hyman M, Lin D, Nazarian S, Riley M, Shivamurthy P, Supple G, Walsh M, Schaller R, Frankel D.: Lead implantation in the setting of venous occlusion: Long-term outcomes with tunneled leads. JACC: Clinical Electrophysiology 11(7): 1616-1618, 2025.
Markman TM, Lin D, Nazarian S, van Niekerk CJ, Mirwais M, Garg L, Bode W, Smietana J, Sugrue A, Patel NA, Patel D, Ha B, Hyman MC, Riley M, Callans DJ, Deo R, Yang R, Schaller RD, Kumareswaran R, Guandalini GS, Epstein AE, Marchlinski FE, Frankel DS.: Intraoperative pectoral nerve blocks during cardiac implantable electronic device procedures. Heart Rhythm 22(5): 1264-1269, 2025.