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All Journal Indonesian Journal of Cardiology
Yoga Yuniadi
Departemen Kardiologi dan Kedokteran Vaskular FKUI, Pusat Jantung Nasional Harapan Kita, Jakarta
Health Professions Medicine & Pharmacology

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Ablasi Frekuensi-Radio pada Takikardia Atrium Fokal di Sinus Koronarius Muhammad Reza; Dicky A A Hanafy; Yanuar B. Hartanto; Sunu B Raharjo; Yoga Yuniadi
Jurnal Kardiologi Indonesia Vol. 37, No. 3 Juli - September 2016
Publisher : The Indonesian Heart Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30701/ijc.v37i3.578

Abstract

Focal atrial tachycardia (AT) is defined as atrial activation originating from a discrete focus with centrifugal spread. Available information suggests that focal activity can be caused by automaticity, triggered activity, or microreentry. Generally, AT response poorly to medication but can be treated by radiofrequency ablation with high long-term success. Focal AT represents approximately 3% to 17% of the patients referred for supraventricular tachycardia (SVT) radiofrequency ablation (RFA). Electrophysiology study is important to correctly diagnose the mechanism of the SVT before RFA is performed. Observation and several pacing maneuver could be done to identify the mechanism of SVT.A 54 year old female came with chief complaint of palpitation. During palpitation her ECG showed narrow complex regular tachycardia with the P-wave that was difficult to ascertain clearly. Electrophysiology study showed VA interval 130 ms, differences between VA interval during tachycardia and VA interval during RV pacing was 55 ms, no advanced in atrial activation, difference between ventricular post pacing interval (PPI) and tachycardia cycle length (TCL) was 130 ms, ventricular pacing during tachycardia results in V-A-A-V response before tachycardia resumes, and showed concentric atrial activation with earliest point at CS 9-10, indicating an AT from coronary sinus origin. AT was terminated during the RFA.Electrophysiology study is important to correctly diagnose AT, especially when P-wave during tachycardia in the surface ECG is uncertain. Several pacing maneuver during electrophysiology study can be very helpful to verify the diagnosis of AT.
Mobitz Type II Second-Degree Atrioventricular Block in a Pilot : To Pace or Not to Pace? Stephanie Salim; Sunu Budhi Raharjo; Dony Yugo Hermanto; Dicky Armein Hanafy; Yoga Yuniadi; Stephanie Salim; Sunu Budhi Raharjo; Dony Yugo Hermanto; Dicky Armein Hanafy; Yoga Yuniadi
Jurnal Kardiologi Indonesia Vol 41 No 1 (2020): Indonesian Journal of Cardiology: Januari - Maret 2020
Publisher : The Indonesian Heart Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30701/ijc.950

Abstract

Background: Atrioventricular (AV) block is a threatening condition that caused sudden loss of consciousness and death, notably if happened to aircraft pilot will compromise the reliability of flight operations and safety. Cardiac arrhythmia is well known as one of the main disqualifier for loss of flying license, and discriminating between benign and potentially significant rhythm abnormalities remains a challenge. The present case describes the electrophysiological feature of a high-grade AV block in an aircraft pilot. Case illustration: A 60-year-old male worked as commercial aircraft pilot presented with asymptomatic high-grade AV block during inflight Holter monitoring. He had never experienced any remarkable symptoms nor history of near syncope, but had a history of percutaneous coronary intervention (PCI) with one stent at left circumflex (LCx) coronary artery. Electrophysiology (EP) study revealed AH interval of 105 ms, HV interval of 50 ms, AV node effective refractory period of 280 ms and Weckenbach point of 330 ms, suggesting a normal EP study. Stimulation with atrial pacing and ATP showed prolongation of AH interval without changes in HV interval, showing the presence of a supra-Hisian AV node dysfunction. The highly demanding physiological environment in aircraft elucidate the likelihood of vagotonic cause of his condition and pacemaker implantation was not warranted. Conclusion: Atrioventricular (AV) block is an AV conduction disorder that can manifests in various symptoms and severity. Electrophysiology study is considered as a modality to locate the site of block that allows the avoidance of unnecessary permanent pacing and the appropriate prophylactic pacing.
Mobitz Type II Second-Degree Atrioventricular Block in a Pilot : To Pace or Not to Pace? Stephanie Salim; Sunu Budhi Raharjo; Dony Yugo Hermanto; Dicky Armein Hanafy; Yoga Yuniadi; Stephanie Salim; Sunu Budhi Raharjo; Dony Yugo Hermanto; Dicky Armein Hanafy; Yoga Yuniadi
Jurnal Kardiologi Indonesia Vol 41 No 1 (2020): Indonesian Journal of Cardiology: Januari - Maret 2020
Publisher : The Indonesian Heart Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30701/ijc.950

Abstract

Background: Atrioventricular (AV) block is a threatening condition that caused sudden loss of consciousness and death, notably if happened to aircraft pilot will compromise the reliability of flight operations and safety. Cardiac arrhythmia is well known as one of the main disqualifier for loss of flying license, and discriminating between benign and potentially significant rhythm abnormalities remains a challenge. The present case describes the electrophysiological feature of a high-grade AV block in an aircraft pilot. Case illustration: A 60-year-old male worked as commercial aircraft pilot presented with asymptomatic high-grade AV block during inflight Holter monitoring. He had never experienced any remarkable symptoms nor history of near syncope, but had a history of percutaneous coronary intervention (PCI) with one stent at left circumflex (LCx) coronary artery. Electrophysiology (EP) study revealed AH interval of 105 ms, HV interval of 50 ms, AV node effective refractory period of 280 ms and Weckenbach point of 330 ms, suggesting a normal EP study. Stimulation with atrial pacing and ATP showed prolongation of AH interval without changes in HV interval, showing the presence of a supra-Hisian AV node dysfunction. The highly demanding physiological environment in aircraft elucidate the likelihood of vagotonic cause of his condition and pacemaker implantation was not warranted. Conclusion: Atrioventricular (AV) block is an AV conduction disorder that can manifests in various symptoms and severity. Electrophysiology study is considered as a modality to locate the site of block that allows the avoidance of unnecessary permanent pacing and the appropriate prophylactic pacing.
Co-Authors Amiliana M. Soesanto Ario S. Koencoro Budhi Setianto Budi Nagawijaya Cholid T. Tjahjono Dede Kusmana Dicky A A Hanafy Dicky A. Hanafy Dicky Armein Hanafy Doni Firman Dony Yugo Hermanto Dony Yugo Hermanto Erika Maharani Harmani Kalim Hossain Moqaddas Hubert Seggewiss Ingrid M. Pardede Isman Firdaus M Munawar Muhammad Munawar Muhammad Reza Otte J. Rachman Radityo Prakoso Stephanie Salim Stephanie Salim Sunu B Raharjo Sunu Budhi Raharjo Yanuar B. Hartanto