1.A Case of Chaotic Atrial Tachycardia.
Jung Hee PARK ; Eun Ai LEE ; Joong Gon KIM ; Keun LEE
Journal of the Korean Pediatric Society 1983;26(2):180-182
No abstract available.
Tachycardia*
2.A Case of Chronic Atrial Tachycardia.
Seung Won PARK ; Moo Young OH ; In Soon PARK ; Chul Ho KIM ; Soon Yong LEE
Journal of the Korean Pediatric Society 1983;26(9):905-908
No abstract available.
Tachycardia*
3.A case of broad QRS paroxysmall supraventricular tachycardia that is difficult to differentiate from ventricular tachycardia.
Hung Ki MIN ; Hyun Hi KIM ; Jong Wan KIM ; Kyung Tai WHANG ; Sung Hoon CHO
Journal of the Korean Pediatric Society 1992;35(2):257-262
No abstract available.
Tachycardia, Supraventricular*
;
Tachycardia, Ventricular*
4.Value of P Wave in Determining the Site of Accessory Pathway during Orthodromic Atrioventricular Reentry Tachycardia.
Chee Jeong KIM ; Young Dae KIM ; Dong Jin OH ; Byung Hee OH ; Myoung Mook LEE ; Young Bae PARK ; Yun Shik CHOI ; Jung Don SEO ; Young Woo LEE
Korean Circulation Journal 1990;20(1):121-127
The P wave during orthodromic atrioventricular reentry tachycardial were analysed in 19 patients to evaluate the usefulness in identifying the location of accessory pathways. The results were as follows; 1) Definitely inverted and upright P waves in lead I represented the left-sided and right-sided pathways respectively, but the converse is not necessarily true. 2) Dome and Dart appearance in lead VI(4 cases), upright P wave in inferior leads(3 cases), and negative P wave in aVL(3 cases) suggested the left-sided pathway and deeply inverted P waves in inferior leads suggested the posteroseptal or right-sided one. 3) In 17 cases(79%), inverted P wave appeared on more than one lead among the inferior leads, which were helpful to identify the position on P wave and mechanism of supraventricular tachycardia. Although the number of cases especially with right-sided pathway was small to conclude, P wave was useful for determining the location of accessory pathway noninvasively.
Humans
;
Tachycardia*
;
Tachycardia, Supraventricular
5.Visualization of the Critical Isthmus by Tracking Delayed Potential in Edited Windows for Scar-Related Ventricular Tachycardia.
Ju Youn KIM ; Woo Seung SHIN ; Tae Seok KIM ; Sung Hwan KIM ; Ji Hoon KIM ; Sung Won JANG ; Hui Nam PAK ; Gi Byoung NAM ; Man Young LEE ; Tai Ho RHO ; Yong Seog OH
Korean Circulation Journal 2016;46(1):56-62
BACKGROUND AND OBJECTIVES: Identifying the critical isthmus of slow conduction is crucial for successful treatment of scar-related ventricular tachycardia. Current 3D mapping is not designed for tracking the critical isthmus and may lead to a risk of extensive ablation. We edited the algorithm to track the delayed potential in order to visualize the isthmus and compared the edited map with a conventional map. SUBJECTS AND METHODS: We marked every point that showed delayed potential with blue color. After substrate mapping, we edited to reset the annotation from true ventricular potential to delayed potential and then changed the window of interest from the conventional zone (early, 50-60%; late, 40-50% from peak of QRS) to the edited zone (early, 80-90%; late, 10-20%) for every blue point. Finally, we compared the propagation maps before and after editing. RESULTS: We analyzed five scar-related ventricular tachycardia cases. In the propagation maps, the resetting map showed the critical isthmus and entrance and exit sites of tachycardia that showed figure 8 reentry. However, conventional maps only showed the earliest ventricular activation sites and searched for focal tachycardia. All of the tachycardia cases were terminated by ablating the area around the isthmus. CONCLUSION: Identifying the channel and direction of the critical isthmus by a new editing method to track delayed potential is essential in scar-related tachycardia.
Tachycardia
;
Tachycardia, Ventricular*
6.Pitfalls of Atrial Advancement Using a Ventricular Extra-stimulus During Supraventricular Tachycardia.
Jeong Wook PARK ; Sung Hwan KIM ; Yong Seog OH ; Chun HWANG
International Journal of Arrhythmia 2016;17(1):64-68
The delivery of single His-refractory ventricular extra-stimulus during supraventricular tachycardia is useful to identify the mechanism of the tachycardia. We present the different responses based on the ventricular extra-stimulus site. Our findings demonstrate that the atrial activation via an accessory pathway was not advanced based on the ventricular pacing site. Therefore, atrioventricular tachycardia could masquerade as atrioventricular nodal reentrant tachycardia.
Tachycardia
;
Tachycardia, Atrioventricular Nodal Reentry
;
Tachycardia, Supraventricular*
8.A case of paroxysmal supraventricular tachycardia concomitantly occurred in an infantile asthmatic.
Phil Soo OH ; Nam Su KIM ; Ha Baik LEE
Pediatric Allergy and Respiratory Disease 1993;3(2):151-157
No abstract available.
Tachycardia, Supraventricular*
10.Study on characteristics of paroxysmal supraventricular tachycardia
Journal of Practical Medicine 2004;487(9):53-54
Study 62 patients (mean age 47.2 years) who had paroxysmal supraventricular tachycardia. Risk factors was exert (46.7%), 49.9% of patients had mitral and aorta valve diseases. Most severe symptoms were syncope, hypotension, and seizure (46.6%). Mean rhythm was 18512 cycle/minute, with common disorders were atrial fibrillation and sinus rhythm (62.9%).
Tachycardia, Supraventricular
;
Tachycardia
;
Risk Factors