• Title/Summary/Keyword: Anti-arrhythmia

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A Case of Severe Aconitine Intoxication with Ventricular Tachycardia, Successfully Treated by a Combination of Two Anti-arrhythmic Drugs (두 가지 항부정맥 약제를 병용 투여하여 성공적으로 치료한 심실빈맥이 동반된 부자중독 1례 보고)

  • Ryoo, Seung-Mok;Sohn, Chang-Hwan;Oh, Bum-Jin;Kim, Won;Lim, Kyoung-Soo
    • Journal of The Korean Society of Clinical Toxicology
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    • v.9 no.2
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    • pp.105-108
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    • 2011
  • Aconitine is an anti-inflammatory agent with therapeutic uses in oriental medicine as an analgesic and for treatment of stroke. Because of its sodium channel effect, aconitine can promote undesirable, wide complex tachyarrhythmia. If tachycardia develops during use of aconitine, class Ia and class III anti arrhythmic drugs can be utilized for treatment. However there are no single anti-arrhythmia agents which are uniformly effective. We report a case, characterized by wide complex tachyarrhythmia and severe hypotension, which was successfully treated by simultaneous injections of amiodarone and lidocaine. A 59-year-old woman exhibiting clinical signs of drowsiness as a result of ingesting 6 g of aconitine, was admitted to the emergency department. Initially, wide complex tachyarrhythmia (ventricular tachycardia and pulse rate of 180 beats/min) and severe hypotension (blood pressure of 53/26 mmHg) was observed. After simultaneous injection of amiodarone and lidocaine, the patient's rhythm pattern changed to an accelerated junctional rhythm with ventricular premature complex. Two hours later, the patient's heart pattern became a sinus rhythm. As demonstrated by this case, simultaneous injections of amiodarone and lidocaine can be useful in treating ventricular arrhythmia induced by aconitine.

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A Case of Patient with Brady-arrhythmia Complaining Dizziness Treated with complex Korean Medicine treatments (어지럼증을 호소하는 서맥성 부정맥 환자의 한의복합치료 1례)

  • So-Min, Jung;Seong-Wook, Lee;Won-Jung, Ha;Ki-Ho, Cho;Sang-Kwan, Moon;Woo-Sang, Jung;Seungwon, Kwon;Han-Gyul, Lee
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.23 no.1
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    • pp.41-54
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    • 2022
  • Brady-arrhythmia is defined as an arrhythmia in which the heart rate slows to less than 60 beats per minute. Brady-arrhythmia reduces cardiac output and causes changes in blood flow. As a result, dizziness occurs because not only ischemia occurs in the central nervous system, but also blood flow in major organs decreases. The insertion of an artificial pacemaker is known as almost the only treatment alternative for patients with brady-arrhythmia with symptoms. This study reports a case of 85 year old male diagnosed with brady-arrhythmia complaining presyncope type of dizziness. The patient underwent complex Korean medicine treatments by herbal medicine, acupuncture and moxibustion. The daily average value of pulse rate, K-DHI score, NRS score and the patient's subjective expression of symptoms were used as evaluation tools. This study suggested a significant improvement in symptoms through complex Korean medicine treatments without the use of anti-arrhythmic drugs or insertion of an artificial pacemaker in the patient with brady-arrhythmia complaining dizziness.

A Case of Recurrent Ventricular Tachycardia after Pimozide and Haloperidol Overdose (Pimozide와 Haloperidol 과량 복용 후 반복적으로 발생한 심실 빈맥 1례)

  • Jung, Jin-Hee;Jang, Hye-Young;Eo, Eun-Kyung
    • Journal of The Korean Society of Clinical Toxicology
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    • v.3 no.1
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    • pp.67-70
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    • 2005
  • Pimozide and haloperidol are typical antipsychotics. They share a similarity in pharmacotherapeutic and adverse effect profiles. Cardiovascular effects may be seen as alterations in heart rate, blood pressure, and cardiac conduction. Conduction disturbances may occur ranging from asymptomatic prolongation of the QT interval to fatal ventricular arrhythmia. So in the case of anti psychotics overdose, the patient must be carefully monitored by continuous electrocardiography (ECG). We experienced a 34-year-old woman of schizophrenia with recurrent ventricular tachycardia after pimozide and haloperidol overdose. Initially she was slightly drowsy, however her ECG showed normal sinus rhythm. After 6 hours on emergency department entrance, her ECG monitoring showed ventricular tachycardia and we successfully defibrillated. There were five times events of ventricular arrhythmia during the in-hospital stay. She was discharged 5 days later without any other complications.

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Computer Simulation Study of the Potential Anti-arrhythmic Properties of Paeonol (Paeonol의 잠재적인 항부정맥 효과의 컴퓨터 시뮬레이션 연구)

  • Lee, Soojin
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.29 no.4
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    • pp.305-312
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    • 2015
  • Paeonol is a major component found in the Paeoniaceae family such as Paeonia suffruticosa Andrews. Paeonia suffruticosa Andrews has traditionally been used to enhance blood flow and relieve joint pain in east Asian countries including China, Korea and Japan. Current research has shown that paeonol blocked the voltage-gated sodium channel and L-type calcium channel. However, there is a lack of research to reveal the relation between cardiac function and blockade of ion channels by paeonol. Therefore, the aim of this study is to investigate whether paeonol has anti-arrhythmic effects via modulating cardiac ion channels. It is collected that the effects of paeonol on multiple ion channels such as the fast sodium channel and L-type calcium channel from published papers. To incorporate the information on multi-channel block, we computed the effects using the mathematical cardiac model of the guinea-pig and rat ventricular cells (Noble 1998 and 1991 model) and induced early after-depolarizations (EADs) to generate an arrhythmia in the whole heart. Paeonol slightly shortened the action potential duration in the normal cardiac ventricular action potential by the inhibition of sodium channel and L-type calcium channel. Paeonol presented the protective effect from EADs by the inactivation of sodium channel but not L-type calcium channel. Paeonol did not show any changes when it treated on normal ventricular cells through the inhibition of sodium channel, but the protective effect of paeonol through sodium channel on EADs was dose-dependent. These findings suggest that paeonol and its original plant may possess anti-arrhythmic activity, which implies their cardioprotective effects.

Therapy for Postoperative Cardiac Arrhythmia in Patient with Mitral Valve Surgery (승모판막 수술 환자에서 발생한 부정맥의 치료)

  • 조건현
    • Journal of Chest Surgery
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    • v.25 no.6
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    • pp.672-677
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    • 1992
  • This is a clinical review of the results from electric cardioversion and pharmacological therapy used in our hospital for reverting cardiac arrythmia in patients with mitral valve surgery between Jan. 1990 and Jun. 1991. Of 62 evaluated patients, 16 patients had regular sinus rhythm and the other 46 had arrhythmias [42; atrial fibrillation 1; atrial flutter 1; premature ventricular contraction] preoperatively. In 2 of patients with sinus rhythm, atrial fibrillation newly developed after surgery and was converted into sinus rhythm soon by intravenous administration of digoxin. Remaining 14 patient resumed sinus rhythm spontaneously. In patients with preoperative arrythmia, 3 patients reverted into sinus rhythm from atrial fibrillation by electric cardioversion at operative field, 1 patient by lidocain and mexiletine, 4 patients by combined use of digoxin and verapamil, 4 patients by 2 times of oral quinidine and 9 patient by long term use of oral amiodarone. Throughout this consecutive trials of anti-arrhythmic drugs and electric cardioversion, Conversion into normal sinus rhythm occurred in 48% of patients with arrhythmia developed after mitral valve surgery.

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Effects of Sophorae Radix (SFR) on Allergic Inflammation related Atopy Dermatitis (고삼(苦蔘)이 알러지성 염증 반응에 미치는 영향)

  • Yu, Mao-Lun;Koo, Young-Sun;Kim, Dong-Hee
    • Journal of Haehwa Medicine
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    • v.15 no.2
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    • pp.135-148
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    • 2006
  • Sophorae Radix (SFR) is known as a therapeutic drug that has been used in Oriental traditional medicine for the treatment of skin and mucosal ulcers, gastrointestinal hemorrhage, diarrhea, inflammation and arrhythmia. In the present study, we examined the effects of the aqueous extract of SFR on anti-inflammation, anti-allergic and anti-oxidant effect in various cell lines; they include mouse lung fibroblast cells (hFCs), human mast cells (HMC-1), human monocytic cells (THP-1), and RAW 264.7 cells. Treatment with SFR extract at a concentration of 250 ${\mu}g$/ml for 24h showed no significant decrease in the survival rate of the hFCs. SFR decreased the mRNA expression of IL-8, TNF-$\alpha$, and IL-6 in HMC-1 cells. SFR extract treatment significantly inhi-bited the protein expression of IL-6 and, IL-8 induced by mite in THP-1 cells and it also did MCP-1 expression. We examined the alternation of histamine release in HMC-1 cells for investigating anti-allergic effect of SFR. Histamine secretion decreased after the treatment with SFR. In addition, SFR extract treatment at a concentration of 10 ${\mu}g$/ml, 100 ${\mu}g$ /ml, and 200 ${\mu}g$/ml lowered the $\beta$-hexosaminidase to 10.3%, 21.7%, and 50.8%, respectively. IC50 of SFR extract in RBL-2H3 cells was 196.85 ${\mu}g$/ml. Both activity of NF-$\kappa$B promoter in RBL-2H3 cells significantly diminished after the dose-dependent treatment of SFR. Therefore, our results indicate that SFR has anti-inflammatory and it may be useful for treating allergic diseases such as atopic dermatitis.

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Outcome of Concomitant Cox Maze Procedure with Narrow Mazes and Left Atrial Volume Reduction

  • Choi, Jong Bum;Kim, Jong Hun;Cha, Byong Ki
    • Journal of Chest Surgery
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    • v.47 no.4
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    • pp.358-366
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    • 2014
  • Background: To improve sinus rhythm conversion, the Cox maze III procedure with narrow mazes (width: ${\leq}3.0cm$) was performed in combination with left atrial volume reduction. Methods: From October 2007 to April 2013, 87 patients with atrial fibrillation (paroxysmal in 3, persistent in 14, and permanent in 70) underwent the Cox maze procedure concomitant with another cardiac procedure. They were followed-up with serial electrocardiographic and echocardiographic studies. We used 24-hour Holter monitoring tests to evaluate postoperatively symptomatic patients. Results: At the mean follow-up time of 36.4 months, 81 patients (94.2%) had sinus rhythm and two were on anti-arrhythmic medication (one on a beta-blocker and the other on amiodarone). Five patients (5.8%) with postoperative recurrent and persistent atrial fibrillation never experienced sinus rhythm conversion; however, they did not require any medication for rate control. On postoperative echocardiography, the left atrial A waves were more frequently observed after concomitant mitral valve repair than after concomitant mitral valve replacement (82.4% vs. 40.4%, respectively; p<0.001). Conclusion: For the Cox maze procedure, narrow mazes and atrial volume reduction resulted in excellent sinus rhythm conversion without the preventive use of anti-arrhythmic drugs, and they did not affect the presence of the left atrial A waves on echocardiography.

Protective Effect of Urokinase on Reperfusion Function in Isolated Perfused Rat Heart, and Anti-platelet Aggregation Effect Invitro and Exvivo (Urokinase의 적출심장의 심근허혈에 대한 보호작용과 invitro 및 exvivo항혈전작용 실험)

  • Kwon, Kwangil;Shin, Hongseup;Yoon, Jongok;Kim, Boshin;Min, Jiha;Lee, Byungho;Huh, Inhoe
    • Korean Journal of Clinical Pharmacy
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    • v.2 no.1
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    • pp.1-9
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    • 1992
  • Protective effect of urokinase on reperfusion were studied followed by global ischemia in the isolated perfused rat heart. Separately, anti-platelet aggregation effect of urokinase also investigated. Urokinase exhibited positive effect for the protection of rat heart function by increasing the LV dp/dt, coronary flow(CF) and the Tate pressure product(RPP), and by decreasing the LVEDP on reperfusion. Urokinase also decreased arrhythmia by $74.7\%(P<0.05) induced by global ischemia in the rat heart. In the platelet aggregation study, urokinase did not show the inhibitory effect of ADP or collagen induced platelet aggregation inviuo and exvivo.

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Induction of Apoptosis in Human Oral Epidermoid Carcinoma Cells by Sophoraflavanone G from Sophora flavescens

  • Cha, Jeong-Dan;Jeong, Mi-Ran;Lee, Young-Eun;Lee, Kyung-Yeol
    • Food Science and Biotechnology
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    • v.16 no.4
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    • pp.537-542
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    • 2007
  • Sophora flavescens AITON (Leguminosae) is a typical traditional Korean medical herb considered to exhibit antibacterial, anti-inflammatory, and antipyretic effects, and is also used for the treatment of skin and mucosal ulcers, sores, diarrhea, gastrointestinal hemorrhage, arrhythmia, and eczema. In this study, the compound sophoraflavanone G was isolated from the dried roots of S. flavescens by bioassay-guided fractionation. We then investigated the effects of various concentrations of sophoraflavanone G on cell viability and the induction of apoptosis in KB cells after an incubation of 24 hr. The results were determined by the following methods: 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-terazolium bromide (MTT) assay, Hoechst-33258 dye staining, flow cytometry (cell cycle), and Western blotting for caspase-3 and poly (ADP-ribose) polymerase (PARP). We found sophoraflavanone G induced the apoptosis of KB cells in a dose-dependent manner that was verified by DNA fragmentation, apoptotic bodies, the sub-G1 ratio, caspase-3 activity, and cleavage of PARP. These results suggest that sophoraflavanone G has potent anti-proliferative effects on human oral epidermoid carcinoma cells, with the induction of apoptosis.

The Evaluation on the Effectiveness as a Cosmetic Material of Ascidian shell Extract Using Zebrafish model

  • Park, Sin-Ho;Kim, Bo-Ae;Yang, Jae-Chan
    • Journal of the Korean Applied Science and Technology
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    • v.36 no.1
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    • pp.258-268
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    • 2019
  • The extracts of AS contain in alloxanthin, halocynthiaxanthin, astaxanthin and 13 kinds of carotenoids. The aim of the study was to assess the anti-oxidant activity and cell viability of AS. The anti-oxidant activity was determined by using DPPH radical inhibition activity and superoxide dismutase (SOD)-like activity. The results of cell viability assay showed that the extracts from AS were cytotoxic at concentrations above $5.0mg/m{\ell}$. This study was designed to examine inflammation induced by LPS, protection effect by UVB and the toxicity of Ascidian shell extract(ASE) as a functional cosmetic ingredient. Evaluation of embryo toxicity resulted in embryo coagulation and mortality when treated at 5.0, 10.0, $20.0mg/m{\ell}$. At the lowest concentration of $1.0mg/m{\ell}$, hatchability resulted in 100.0 % rate. The results of arrhythmia measurement in larvae showed similarity to the evaluation of embryo toxicity. This result demonstrated that toxicity is present at concentrations greater than $5.0mg/m{\ell}$. The protective effect of ASE on LPS and UVB-induced in the zebrafish was investigated. Intracellular reactive oxygen species(ROS) generated by the exposure of zebrafish to LPS, UVB-radiation were significantly decreased after treatment with ASE at $0.1mg/m{\ell}$. As a result, ASE similarly reduced UVB-induced ROS generation and cell death in live zebrafsih. Therefore, it is suggested that ASE has anti-Inflammatory effects and can possibly be used as a functional substance for skin protection in the future.