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Liverpool Heart and Chest Hospital, Thomas Drive, L14 3PE
Switchboard: 0151 600 1616

Dr Saagar Mahida

Date: 25 February 2019 10:16

Personal Assistant

Karen Close - karen.close@lhch.nhs.uk 

Call 0151 254 3049

Job title and responsibilities at LHCH:

  • Consultant Cardiologist and Cardiac Electrophysiologist

Area of Practice:

  • Arrhythmias (heart rhythm problems)
  • Catheter ablation (including ablation of atrial fibrillation)

Special clinical interests:

  • Atrial fibrillation
  • Ventricular ectopic beats / ventricular tachycardia
  • Supraventricular tachycardia

Professional Profile including Training and Education 

  • Advanced EP fellowship – Brigham and Women’s Hospital, Boston, USA
  • Advanced EP fellowship – Hôpital Haut-Lévêque, Bordeaux, France
  • Postdoctoral research fellowship – MGH and Harvard Medical School, Boston, USA
  • BSc, MBChB, PhD – University of Leicester

Languages spoken:

  • English, Spanish, French, Gujrati, Swahili

LHCH Biography:

Dr Mahida is a USA, France and UK trained cardiac electrophysiologist who specializes in all aspects of diagnosis and treatment of heart rhythm abnormalities (arrhythmias), including catheter ablation of atrial fibrillation.

Dr Mahida developed expertise in heart rhythm management at the Harvard-affiliated Brigham and Women’s Hospital in Boston and Hôpital Haut-Lévêque, Bordeaux, where the first curative ablation for atrial fibrillation worldwide was performed. He also undertook a two-year postdoctoral research fellowship focusing on atrial fibrillation at Massachusetts General Hospital and Harvard Medical School.

Dr Mahida proctors consultant electrophysiologists from UK and Europe on complex catheter ablation techniques. He leads a supra-regional ablation service and receives referrals for complex catheter ablation procedures from a number of other UK specialist arrhythmia centres. 

Dr Mahida’s research focuses on techniques to enhance safety and effectiveness of catheter ablation procedures using latest technologies. He has published extensively on catheter ablation and is currently the Chief Investigator for a UK multicentre research study.


Selected Recent Publications:  

Berte B, Cochet H, Dang L, Mahida S, Moccetti F, Hilfiker G, Bondietti J, Ruschitzka F, Jaïs P, Scharf C, Kobza R. Image-guided ablation of scar-related ventricular tachycardia: towards a shorter and more predictable procedure. J Interv Card Electrophysiol. 2019 Dec 19. doi: 10.1007/s10840-019-00686-w.


Adlan AM, Campbell T, Fairbairn T, Aggarwal S, Nawaytou O, Penha D, Todd D, Mahida S. Retrograde aortic access during ventricular tachycardia ablation: indications, techniques and challenges. J Cardiovasc Electrophysiol. 2019 Nov;30(11):2629-2639. doi: 10.1111/jce.14163. Epub 2019 Sep 18.


Yamashita S, Tokuda M, Matsuo S, Mahida S, Hachisuka EO, Sato H, Ikewaki H, Oseto H, Yokoyama M, Isogai R, Tokutake K, Yokoyama K, Narui R, Kato M, Tanigawa S, Sugimoto K, Yoshimura M, Yamane T. Comparison of atrial arrhythmia recurrence after persistent atrial fibrillation ablation between patients with or without tachycardia-induced cardiomyopathy. J Cardiovasc Electrophysiol. 2019 Nov;30(11):2310-2318. doi: 10.1111/jce.14144.


Frontera A, Vlachos K, Kitamura T, Mahida S, Pillois X, Fahy G, Marquie C, Cappato R, Stuart G, Defaye P, Kaski JP, Ector J, Maltret A, Scanu P, Pasquie JL, Deisenhofer I, Blankoff I, Scherr D, Manninger M, Aizawa Y, Koutbi L, Denis A, Pambrun T, Ritter P, Sacher F, Hocini M, Maury P, Jaïs P, Bordachar P, Haïssaguerre M, Derval N. Long-Term Follow-Up of Idiopathic Ventricular Fibrillation in a Pediatric Population: Clinical Characteristics, Management, and Complications. J Am Heart Assoc. 2019 May 7;8(9):e011172. doi: 10.1161/JAHA.118.011172.


Mahida S, Venlet J, Saguner AM, Kumar S, Baldinger SH, AbdelWahab A, Tedrow UB, Castelletti S, Pantazis A, John RM, McKenna WJ, Lambiase PD, Duru F, Sapp JL, Zeppenfeld K, Stevenson WG. Ablation Compared to Drug Therapy for Recurrent Ventricular Tachycardia in Arrhythmogenic Right Ventricular Cardiomyopathy; Results from a Multicenter Study. Heart Rhythm. 2018 Oct 23. pii: S1547-5271(18)31043-9


Wynn G, Gupta D, Maille B, Snowdon R, Waktare J, Todd D, Hall M, Mahida S, Modi S. Demonstration of pulmonary vein exit block following pulmonary vein isolation: A novel use for adenosine. J Cardiovasc Electrophysiol. 2018 Sep 19. doi: 10.1111/jce.13744.


Denham NC, Pearman CM, Ding WY, Waktare J, Gupta D, Snowdon R, Hall M, Cooper R, Modi S, Todd D, Mahida S. Systematic re-evaluation of SCN5A variants associated with Brugada syndrome. J Cardiovasc Electrophysiol. 2018 Sep 11. doi: 10.1111/jce.13740


Mahida S, Sacher F, Dubois R, Sermesant M, Bogun F, Haïssaguerre M, Jaïs P, Cochet H. Cardiac Imaging in Patients With Ventricular Tachycardia. Circulation. 2017 Dec 19;136(25):2491-2507.


Yamashita S, Hooks DA, Shah A, Relan J, Cheniti G, Kitamura T, Berte B, Mahida S, Sellal JM, Jefairi NA, Frontera A, Amraoui S, Collotand F, Denis A, Derval N, Sacher F, Cochet H, Dubois R, Hocini M, Haïssaguerre M, Klein G, Jaïs P. Atrial tachycardias: Cause or effect with ablation of persistent atrial fibrillation?. J Cardiovasc Electrophysiol. 2018 Feb;29(2):274-283.


Kumar S, Baldinger SH, Kapur S, Romero J, Mehta NK, Mahida S, Fujii A, Tedrow UB, Stevenson WG. Right ventricular scar-related ventricular tachycardia in nonischemic cardiomyopathy: Electrophysiological characteristics, mapping, and ablation of underlying heart disease. J Cardiovasc Electrophysiol. 2018 Jan;29(1):79-89.


Derval N, Duchateau J,Mahida S, Eschalier R, Sacher F, Lumens J, Cochet H, Denis A, Pillois X, Yamashita S, Komatsu Y, Ploux S, Amraoui S, Zemmoura A, Ritter P, Hocini M, Haissaguerre M, Jaïs P, Bordachar P. Distinctive Left Ventricular Activations Associated With ECG Pattern in Heart Failure Patients. Circ Arrhythm Electrophysiol. 2017 Jun;10(6).


Lim HS, Hocini M, Dubois R, Denis A, Derval N, Zellerhoff S, Yamashita S, Berte B,Mahida S, Komatsu Y, Daly M, Jesel L, Pomier C, Meillet V, Amraoui S, Shah AJ, Cochet H, Sacher F, Jaïs P, Haïssaguerre M. Complexity and Distribution of Drivers in Relation to Duration of Persistent Atrial Fibrillation J Am Coll Cardiol. 2017 Mar 14;69(10):1257-1269


Berte B, Sacher F, Wielandts Y, Mahida S, Pillois X, Weerasooriya R, Bernus O, Jaïs P. A new cryoenergy for ventricular tachycardia ablation: a proof-of-concept study. Europace. 2016 Oct 25. pii: euw217. [Epub ahead of print]


Tucker NR, Mahida S, Ye J, Abraham EJ, Mina JA, Parsons VA, McLellan MA, Shea MA, Hanley A, Benjamin EJ, Milan DJ, Lin H, Ellinor PT. Gain-of-function mutations in GATA6 lead to atrial fibrillation. Heart Rhythm. 2017 Feb;14(2):284-291. doi: 10.1016/j.hrthm.2016.10.014.


Kumar S, Baldinger SH, Romero J, Fujii A, Mahida S, Tedrow UB, Stevenson WG. Substrate-Based Ablation Versus Ablation Guided by Activation and Entrainment Mapping for Ventricular Tachycardia: A Systematic Review and Meta-Analysis. J Cardiovasc Electrophysiol. 2016 Dec;27(12):1437-1447. doi: 10.1111/jce.13088.


Mercer BN, Begg GA, Page SP, Bennett CP, Tayebjee MH, Mahida S. Early Repolarization Syndrome; Mechanistic Theories and Clinical Correlates. Front Physiol. 2016 Jun 30;7:266. doi: 10.3389/fphys.2016.00266. Review.


Yamashita S, Cochet H, Sacher F, Mahida S, Berte B, Hooks D, Sellal JM, Al Jefairi N, Frontera A, Komatsu Y, Lim HS, Amraoui S, Denis A, Derval N, Sermesant M, Laurent F, Hocini M, Haïssaguerre M, Montaudon M, Jaïs P. Impact of New Technologies and Approaches for Post-Myocardial Infarction Ventricular Tachycardia Ablation During Long-Term Follow-Up. Circ Arrhythm Electrophysiol. 2016 Jul;9(7).


Mahida S, Derval N. To the Editor-Flecainide and ventricular fibrillation in patients with early repolarization syndrome. Heart Rhythm. 2016 Sep;13(9):e291. doi: 10.1016/j.hrthm.2016.06.017


Yamashita S, Sacher F, Mahida S, Berte B, Lim HS, Komatsu Y, Amraoui S, Denis A, Derval N, Laurent F, Sermesant M, Montaudon M, Hocini M, Haïssaguerre M, Jaïs P, Cochet H. Image Integration to Guide Catheter Ablation in Scar-related Ventricular Tachycardia. J Cardiovasc Electrophysiol. Jun;27(6):699-708


Yamashita S, Shah AJ, Mahida S, Sellal JM, Berte B, Hooks D, Frontera A, Jefairi NA, Wielandts JY, Lim HS, Amraoui S, Denis A, Derval N, Sacher F, Cochet H, Hocini M, Jaïs P, Haïssaguerre M. Body Surface Mapping to Guide Atrial Fibrillation Ablation Arrhythm Electrophysiol Rev. 2015 Dec;4(3):172-6.


Mahida S, Sacher F, Derval N, Berte B, Yamashita S, Hooks D, Denis A, Amraoui S, Hocini M, Haissaguerre M, Jais P. Science Linking Pulmonary Veins and Atrial Fibrillation. Arrhythm Electrophysiol Rev. 2015 May;4(1):40-3.


Ma JF, Yang F, Mahida S, Zhao L, Chen X, Zhang ML, Sun Z, Yao Y, Zhang YX, Zheng GY, Dong J, Feng MJ, Zhang R, Sun J, Li S, Wang QS, Cao H, Benjamin EJ, Ellinor PT, Li YG, Tian XL TBX5 mutations contribute to early-onset atrial fibrillation in Chinese and Caucasians Cardiovascular Research. 2016 Jan 13. pii: cvw003


Roten L, Derval N, Maury P, Mahida S, Pascale P, Rollin A, Sacher F, Scherr D, Ruidavets JB, Ferrières J, Komatsu Y, Ramoul K, Daly M, Denis A, Shah A, Hocini M, Jaïs P, Haïssaguerre M Benign versus malignant inferolateral early repolarization: the T wave makes the difference Heart Rhythm. 2015 Dec 1. pii: S1547-5271(15)01427-7.


Baldinger S, Kumar S, Barbhaiya CR, Mahida S, Epstein L, Michaud G, John R, Tedrow U, Stevenson W. Epicardial Radiofrequency Ablation Failure during Ablation Procedures for Ventricular Arrhythmias – Reasons and Implications for Outcomes Circulation Arrhythmia and Electrophysiology. 2015 Dec;8(6):1422-32.


Berte B, Sacher F, Venlet J, Andreu D, Mahida S, Aldhoon B, De Potter T, Sarkozy A, Tavernier R, Marius A, Deneke T, Kautzner J, Berruezo A, Cochet H, Zeppenfeld K, Jaïs P VT Recurrence after VT ablation in Non-Ischaemic Cardiomyopathy: Incomplete Ablation or Disease Progression? A Multicentric European Study. J Cardiovasc Electrophysiol. 2016 Jan;27(1):80-7.


Lim, H Denis A, Middeldorp M, Lau D, Mahajan R, Derval N, Albenque JP, Boveda S, Zellerhoff S, Yamashita S, Mahida S, Berte B, Komatsu Y, Daly M Jesel L,, Pomier C, Meillet V, Dubois R, Amraoui S , Shah A, Sacher F, Cochet H, Hocini M, Jais P, Sanders P, Haissaguerre M. Persistent Atrial Fibrillation from the Onset: a Specific Subgroup of Patients with Biatrial Substrate Involvement and Worse Clinical Outcome JACC EP, in press


Berte B, Cochet H, Magat J, Naulin J, Sacher F, Ghidoli D, Pillois X, Casassus F, Yamashita S, Mahida S, Derval N, Hocini M, Quesson B, Bernus O, Haïssageurre M, Jaïs P. Irrigated needle ablation creates larger and more transmural ventricular lesions compared to standard unipolar ablation in an ovine model. Circulation Arrhythmia and Electrophysiology. 2015 Dec;8(6):1498-506.


Berte B, Komatsu Y, Denis A, Pillois X, Kim S, Yamashita S, Sacher F, Mahida S, Hooks D, Sellal JM, Amraoui S, Derval N, Hocini M, Haïssaguerre M, Jaïs P, Cochet H. Characterization of the Left-Sided Substrate in Arrhythmogenic Right Ventricular Cardiomyopathy. Circulation Arrhythmia and Electrophysiology. 2015 Dec;8(6):1403-12.


Berte B, Relan J, Sacher F, Pillois X, Appetiti A, Yamashita S, Casassus F, Hooks D, Sellal JM, Amraoui S, Mahida S, Denis A, Derval N, Hocini M, Haïssaguerre M, Jaïs P. Impact of electrode type on mapping of scar-related VT J Cardiovasc Electrophysiol. 2015 Jul 22. doi: 10.1111/jce.12761.


Kumar S, Barbhaiya C, Nagashima K, Balindger S, Choi, EK, Mahida S, Sobieszczyk P, Eisenhauer A, Couper GS, Epstein LM, John, RM, Michaud GM, Tedrow U, Stevenson WG. What to do when Percutaneous Endo and Epicardial Radiofrequency Catheter Ablation Attempts fail to treat Ventricular Arrhythmias? Approaches and Outcomes Circulation Arrhythmia and Electrophysiology. 2015 Jun;8(3):606-15.


Sacher F, Reichlin T, Zado E, Field ME, Viles-Gonzalez JF, Peichl P, Ellenbogen KA, Maury P, Dukkipati S, Picard F, Kautzner J­, Barandon L, Koneru JN, Ritter P, Mahida S, Calderon J, Derval N, Denis A, Cochet H, Shepard RK, Corre J, Coffey JO, Garcia F, Hocini M, Tedrow U, Haissaguerre M, MD, d'Avila A, Stevenson WG, Marchlinski ME and Jais P. Characteristics of VT Ablation in Patients with Continuous Flow Left Ventricular Assist Devices Circulation Arrhythmia and Electrophysiology 2015 Jun;8(3):592-7..


Mahida S, Hooks DA, Nentwich K, Ng GA, Grimaldi M, Shin DI, Derval N, Sacher F, Berte, B, Yamashita S, Denis A, Hocini M, Deneke T, Haissaguerre M, Jais, P. nMARQ Ablation for Atrial Fibrillation; Results from a Multicentre Study. J Cardiovasc Electrophysiol. 2015 Jul;26(7):724-9.


Kumar S, Bazaz R, Barbhaiya CR, Enriquez AD, Helmbold AF, Chinitz J, Baldinger SH, Mahida S, McConville JW, Tedrow U, John RM, Michaud GF, Stevenson WG “Needle-in-needle” Epicardial access: Preliminary Observations with a Modified Technique for Facilitating Epicardial Interventional Procedures Heart Rhythm. 2015 Jul;12(7):1691-7.


Shah AJ, Lim HS, Yamashita S, Zellerhoff S, Berte B, Mahida S, Hooks D, Aljefairi N, Derval N, Denis A, Sacher F, Jais P, Dubois R, Hocini M, Haissaguerre M. Noninvasive mapping of ventricular tachycardia’s Card Electrophysiol Clin. 2015 Mar;7(1):99-107.


Lim HS, Zellerhoff S, Derval N, Denis A, Yamashita S, Berte B, Mahida S, Hooks D, Aljefairi N, Shah AJ, Sacher F, Hocini M, Jais P, Haissaguerre M. Noninvasive mapping for atrial fibrillation ablation. Card Electrophysiol Clin. 2015 Mar;7(1):89-98.