Clinical electrophysiological studies(EPS) were done in seven patients with chronic recurrent sustained ventricular tachycardia(VT) in an attempt to delineate the reproducibility and to select the effective antiarrhythmic drugs for the prevention of the recurrence of VT. We could induce and terminate the sustained VT, and could select the effective antiarrhythmic drugs in all patient in the cardiac catheterization laboratory with EPS. With these effective antiarrhythmic drugs VT did not recur for the follow up period of 15 to 20 months. In view of the serious nature of the VT and the demonstrated benefits of EPS, we could conclude that patients with chronic recurrent sustained VT should undergo EPS.
Anti-Arrhythmia Agents ; Cardiac Catheterization ; Cardiac Catheters ; Follow-Up Studies ; Humans ; Recurrence ; Tachycardia, Ventricular*

The antihypertensive action of Lasix(R) retard 30 was evaluated in 20 cases of essential hypertension on an outpatient basis. The following results were obtained. 1. The patient population comprised 11 males and 9 females, aged 32 to 67 years, with mild to moderate essential hypertension. mean age was 50 years, with 75% between 40 and 59 years of age. 2. The daily effective doses ranged from 1 to 3 capsules with an average of 1.7 capsules. The total duration of medication ranged from 4 to 12 weeks with an average of 6.5 weeks. 3. In 60% of the cases, good or fair control of blood pressure was resulted. Most of the poor results were in the cases of moderate hypertension, but the results could be improved with continuous treatment or combination with other antihypertensive drugs. 4. Transient dizziness and drowsiness were complained by 2 patients, but subsided spontaneously with continuous treatment. 5. In view of these results, Lasix retard 30 appears to be effective and well tolerated agent for the treatment of mild to moderate hypertension, either used alone or combined with other antihypertensive drugs.
Antihypertensive Agents ; Blood Pressure ; Capsules ; Dizziness ; Female ; Furosemide ; Humans ; Hypertension ; Male ; Outpatients ; Sleep Stages

No abstract available.
Angiography* ; Heart Septal Defects, Ventricular* ; Pulmonary Artery* ; Pulmonary Atresia*

No abstract available.
Emergencies* ; Emergency Service, Hospital* ; Humans ; Statistics as Topic*

No abstract available.
Arrhythmias, Cardiac*

The antiarrhythmic effect of Mexiletine was evaluated in five patients with recurrent ventricular tachycardia and in twelve patients with frequent premature ventricular contractions. Electrophysiologic study was performed on the the patients with recurrent ventricular tachycardia before and after the administration of Mexiletin(600-800mg/day). The antiarrhythmic effects of Mexiletine in the patients with frequent premature ventricular contraction was assessed by ambulatory electrocardiography. The results were as follows: 1) In all of the five patients with recurrent ventricular tachycardia, sustained ventricular tachycardia was induced by programmed ventricular stimulation. However, on repeated electrophysiologic study performed while receiving Mexiletine, ventricular tachycardia was not induced in four patients and non-sustained ventricular tachycardia was induced in one patients. 2) The number of premature ventricular contraction was decreased markedly in seven patients(58.3%) with frequent premature ventricular contractions. 3) Minimal side effects, mild indigestion and tremor, were recorded in 3 cases(23%) while receiving Mexiletine 600 mg/day. The higher dose was associated with more frequent and severe side effects.
Dyspepsia ; Electrocardiography, Ambulatory ; Humans ; Mexiletine* ; Tachycardia, Ventricular ; Tremor ; Ventricular Premature Complexes

No abstract available.

No abstract available.
Chondrosarcoma*

PURPOSE: The purpose of this study was to analyze how a nursing student recognizes PBL with simulation education and its relationship to academic achievement. METHODS: The study objects were the students in C college who learn through PBL using simulator for 15 weeks(September 2007 to December 2007). Learning element recognition was developed by Cho(2002) and three key evaluations(performance, self-evaluation, and colleague evaluation) were designed by professors. RESULTS: Learning element recognition ranged from 2.37 to 4.83 with the average at 3.94. For Learning element recognition, students who preferred discussion score 4.15. This was statistically more significant than those who do not. Students who preferred presentations show significantly higher score in colleague evaluation. For Learning element recognition and academic achievement, self-evaluation and colleague evaluation showed relationship to PBL learning element. CONCLUSION: There was definitely a relationship with PBL learning element and academic achievement after learning the PBL with simulation education.
Achievement ; Diagnostic Self Evaluation ; Humans ; Learning ; Problem-Based Learning ; Students, Nursing

Recently, the proportion of cardiovascular disease as a cause of death in diabetics is in ever increasing tendency. Present study is designed to evaluate the change of myocardial performance by the effect of microangiopathy of diabetics. The measurements of systolic time intervals were obtained from simultaneous high speed recordings(100mm/sec) of electrocardiography, phonocardiography, and carotid pulse tracing in diabetics(male 26, female 31). 1. As the diabetic retinopathy got severe, shortening of LVET and prologation of PEP were noted, but QS2 showed no significant change. 2. PEP/LVET ratio fo diabetics without diabetic retinopathy was significantly higher than that of normal control(p<0.01). 3. PEP/LVET ratio of diabetics with diastolic blood pressure under 95mmHg was significantly higher than that of normal control group(p<0.01), and PEP/LVET ratio of diabetics with diastolic blood pressure over 96mmHg was significantly higher than that of normal control and that of diabetics with diastolic blood pressure under 95mmHg(p<0.01). 4. PEP/LVET ratio of diabetics with proliperative retinopathy was significantly higher than that of normal control and that of diabetics with mild diabetic retinopathy(p<0.01), but this result was not conclusive because of the small case number.
Blood Pressure ; Cardiovascular Diseases ; Cause of Death ; Diabetic Retinopathy ; Electrocardiography ; Female ; Humans ; Phonocardiography ; Systole*