Dr Ji-Jian Chow

Dr Ji-Jian Chow studied at the University of Cambridge and Imperial College London, followed by medical training and specialist training in cardiology in London and the South East, mainly at Imperial College Healthcare NHS Trust. His PhD research focused on risk stratification of sudden death in inherited cardiac conditions. He continues to be involved in research on cardiac mapping, ablation and pacing.

His subspecialty within cardiology is cardiac electrophysiology. He performs cardiac ablation and device implantation procedures to treat a range of arrhythmias, including bradycardia, supraventricular tachycardia, atrial fibrillation and flutter, ventricular tachycardia and ectopic beats.

1. Ghelani R, Chow JJ, Miyazawa A, Artico J, Cole G, Kanagaratnam P, Peters NS, Varnava A. The Arrhythmic Mitral Valve Prolapse Syndrome: A New Insight for Understanding the Arrhythmogenic Substrate? JACC Case Rep. 2025 May 28;30(12):103419. doi: 10.1016/j.jaccas.2025.103419. Epub 2025 Apr 24. PMID: 40447364.

2. Gonnah AR, Khokhar AA, Chow J-J, Hartley A, Sethi R, Khawaja S, Hadjiloizou N, Ruparelia N, Mikhail G, Malik I. Reducing Length of Hospital Stay Following Transcatheter Aortic Valve Implantation. Journal of Clinical Medicine. 2024; 13(18):5433. https://doi.org/10.3390/jcm13185433

3. Chow JJ, Leong KMW, Shun-Shin MH, Jones S, et al. The arrhythmic substrate of hypertrophic cardiomyopathy using ECG imaging. Front Physiol. 2024; 15: 1428709. doi: 10.3389/fphys.2024.1428709. PMCID: PMC11350108

4. Ali N, Saqi K, Arnold AD, Miyazawa AA, Keene D, Chow JJ, Little I, Peters NS, Kanagaratnam P, Qureshi N, Ng FS, Linton NWF, Lefroy DC, Francis DP, Boon Lim P, Tanner MA, Muthumala A, Agarwal G, Shun-Shin MJ, Cole GD, Whinnett ZI. Left bundle branch pacing with and without anodal capture: impact on ventricular activation pattern and acute haemodynamics. Europace. 2023 Oct 5;25(10):euad264. doi: 10.1093/europace/euad264. PMID: 37815462; PMCID: PMC10563660.

5. Chow JJ, Leong KMW, Shun-Shin MJ, Ormerod JOM, et al. Ventricular Conduction Stability Noninvasively Identifies an Arrhythmic Substrate in Survivors of Idiopathic Ventricular Fibrillation. J Am Heart Assoc. 2023 Apr 18;12(8):e028661. doi: 10.1161/JAHA.122.028661. Epub 2023 Apr 12. PMID: 37042261.

6. Ali N, Arnold AD, Miyazawa AA, Keene D, Chow JJ, Little I, Peters NS, Kanagaratnam P, Qureshi N, Ng FS, Linton NWF, Lefroy DC, Francis DP, Phang Boon L, Tanner MA, Muthumala A, Shun-Shin MJ, Cole GD, Whinnett ZI. Comparison of methods for delivering cardiac resynchronization therapy: an acute electrical and haemodynamic within-patient comparison of left bundle branch area, His bundle, and biventricular pacing. Europace. 2023 Mar 30;25(3):1060-1067. doi: 10.1093/europace/euac245. PMID: 36734205; PMCID: PMC10062293.

7. Chow JJ, Bilham J, Lane R. Isolated subcutaneous implantable cardioverter-defibrillator generator displacement causing inappropriate shocks despite preserved lead tip and coil position: a case report. Eur Heart J Case Rep. 2023 Jan 17;7(2):ytad023. doi: 10.1093/ehjcr/ytad023. PMID: 36755787; PMCID: PMC9901276.

8. Ghelani R, Chow JJ, Varnava A. The Athletic ECG: A Line of Defense Against Misinterpretation. JACC Case Rep. 2022 Nov 16;4(22):1509-1514. doi: 10.1016/j.jaccas.2022.08.024. PMID: 36444192; PMCID: PMC9700076.

9. Chow JJ, Leong KMW, Yazdani M, Huzaien H, et al. A Multicenter External Validation of a Score Model to Predict Risk of Events in Patients With Brugada Syndrome. Am J Cardiol. 2021;00:1-7. DOI: 10.1016/j.amjcard.2021.08.035

10. Bachtiger P, Adamson A, Chow JJ, Sisodia R, Quint JK, Peters NS. The Impact of the COVID-19 Pandemic on the Uptake of Influenza Vaccine: UK-Wide Observational Study. JMIR Public Health Surveill. 2021 Apr 14;7(4):e26734. doi: 10.2196/26734. PMID: 33651708; PMCID: PMC8048709.