Echocardiographic right ventricular systolic time invervals were measured in 69 cases of congenital and acquired valvular heart disease, who have neither arrhythmia nor conduction disturbances. The results were as follows: 1) Right ventricular preejection periord(RVPEP) relates with main pulmonary arterial systolic pressure (MPA(s)), main pulmonary arterial diastolic pressure (MPA(d)), main pulmonary arterial mean pressure (MPA(m)), pulmonary vascular resistance (Rp), and the ratio of pulmonary systemic vascular resistance (Rp/Rs) (r=0.746, 0.738, 0.755, 0.721, 0.687). 2) Rifht ventricular ejection time relates with MPA (s), MPA (d), MPA (m), Rp, and Rp/Rs (r=-0.580, -0.541, -0.544, -0.577, -0.420). 3) The ratio of right ventricular preejection period-right ventricular ejection time (RVPEP/RVET) relates with MPA (s), MPA (d), MPA (m), Rp and Rp/Rs (r=0.789, 0.784, 0.781, 0.778, 0.695). 4) Pulmonary hypertension and increased pulmonary vascular resistance can be predicted, when RVPEP/RVET is over 0.3. 5) By serial preoperative and postoperative measurements, pulmonary hypertension and increased pulmonary vascular resistance were relieved in the cases of mitral stenosis. But in the cases of congenital heart diseas there were no significant change in RVPEP/RVET ratio.
Adult* ; Arrhythmias, Cardiac ; Blood Pressure ; Echocardiography* ; Heart ; Heart Valve Diseases ; Humans ; Hypertension, Pulmonary ; Mitral Valve Stenosis ; Systole* ; Vascular Resistance

PURPOSE: This study investigated the effect of transformational leadership and individual characteristics on nurses' job involvement. METHOD: The sample for this study consisted of 594 nurses from 8 large Korean hospitals. The factor analysis was drawn from the Cronbach's alpha analysis, the Pearson correlation analysis, the multiple regression analysis, and the hierarchical multiple regression analysis. Result: This study found that; (1) charisma dimension of transformational leadership has positive influence on job involvement; but intellectual stimulation and individualized consideration did not showed significant effects on job involvement (2) nurse individual characteristics (age, marital status, educational level, tenure, position) moderated the effect of transformational leadership on job involvement. Conclusion : Therefore, to improve job involvement nurses are required to apply the charisma dimension of transformational leadership in hospital organization.
Humans ; Leadership* ; Marital Status

No abstract available.
Adenoma, Pleomorphic* ; Neurilemmoma*

No abstract available.
Lipectomy*

No abstract available.
Epidemiology*

No abstract available.
Osteoporosis* ; Spondylolisthesis*

BACKGROUND: Hypertension is one of the common diseases which family physicians encounter to manage. Various research proved that appropriate aerobic exercise had effect on lowering blood pressure efficiently. This study was to find out the status of exercise, the change of exercise according to time and its predicting factors in hypertensive patients. METHODS: A total of 193 of the followed-up hypertensive patients of family physicians in Seoul and kyoungkido from May 11, 2001 to June 10, 2001 were interviewed by doctor according to the previously designed structured questionnaire. RESULTS: Eighty two patients (42.57) were male and mean and was 57.4 +/- 9.9 fears. Using Kaplan-Meier's method, 8% of non-exercise group (N= 115) in diagnosing hypertension started exercise after 1 fear and 40%, after 5 years. Otherwise, 5% of exercise group(N=78) stopped exercise after 1 year and 30%, after 5 years. The characteristics of 5 exercise groups according to sex, age, level of education and adequacy of exercise showed significant difference. In average blood pressure, lately started group showed the lowest (137/84 mmHg) and non-exercise group, the highest (146/91 mmHg) In the degree of recommendation. sporadic group showed the highest and non-exercise group, the lowest which showed significant difference (p =0.0024) . CONCLUSION: I conclude that lately started group among non-exercise group and continuous exercise group were mainly affected by recommendation to exercise of physician. As well as exercise, other nonpharmacologic treatment should be promoted by physician as an important strategy for treatment of hypertension.
Blood Pressure ; Education ; Exercise ; Gyeonggi-do ; Humans ; Hypertension ; Male ; Physicians, Family* ; Seoul ; Surveys and Questionnaires

In the orthopedic Department of Jeonbug National University Hospital, twenty-five open tibial shaft fractures were reviewed and analyzed with osteomedullography and bone scanning with radioactive isotopes from June 1981 to October 1983. The results are as follows. 1. The cases of injury were mostly traffic accident(70.8%) and majority was found between second decade and third decade. Males were 11 times more frequent than females. 2. In the shape and location of fractures, comminuted fracture(60%) was most common, and fracture of middle one third(48%), lower one third(28%) were in order. 3. In the open tibial fractures, Grade I. of soft tissue injury was most frequent(64%). As inthe plate fixation was required, we should it placed atypically on the posterior surface of the tibia. 4. In the osteomedullography at 3 months after treatment, the rate of positive finding was 80 and intraosseous crossing vein(Kaski sign 1) was observed most frequently. 5. In the profile of the bone scanning with radioactive isotopes, the rate of single-peak uptake was 76% and twin-peak uptake was 24%. 6. In the negative Osteomedullogram and twin-peak uptake on the profile of the bone scanning, bone graft was necessary. 7. In the case of difficult diagnosis for union process of tibia fracture, osteomedullography and bone scanning with radioactive isotopes were considered useful method of early diagnosis.
Diagnosis ; Early Diagnosis ; Female ; Fractures, Comminuted ; Fractures, Open ; Humans ; Jeollabuk-do ; Male ; Methods ; Orthopedics ; Radioisotopes ; Soft Tissue Injuries ; Tibia ; Tibial Fractures ; Transplants

One hundred eighty infants with oxygen therapy who were under 2,500gm birth weight or under 37 weeks of gestational age, were examined between January 1990 and November 1992. We performed clnical analysis and results were as follows. 1) Fifty six infants (31.1%) were diagnosed as retinopathy of prematurity. 2) The first examination was performed at 2.5 weeks of life on average, and the retinopathy of prematurity was diagnosed at 3.8 weeks on average. 3) The incidence of retinopathy of prematurity was highly associated with low birth weight (< or =1,890 gm), low gestational age ( < or =33.1 weeks), and high oxygen concentration with long duration (FiO2> or =0.4 over 1 week)(P<0.005). 4) Other associated risk factors were idiopathic respiratory distress syndrome, anemia, neonatal hypoxia and sepsis.
Anemia, Neonatal ; Anoxia ; Birth Weight ; Gestational Age ; Humans ; Incidence ; Infant ; Infant, Low Birth Weight ; Infant, Newborn ; Oxygen ; Retinopathy of Prematurity* ; Risk Factors ; Sepsis

Clinical EPS was performed in 16 normal adults without evidence of conduction disease on the surface standard 12 lead electrocardiogram in order to provide normal electrophysiological values of the sinus node function and AV conduction. EPS was also performed in 15 patients with sick sinus syndrome and 10 patients with AV conduction disturbance to evaluate the clinical usefulness of EPS in detecting sinus node dysfunction and AV conduction disturbance. The results were as follows. 1) The results of sinus node function test in the normal group were m-SNRT 853+/-198msec(range 800-1,560msec), c-SNRT 230+/-66msec(range 120-370msec), and %m -SNRT/SCL 127+/-11%(range 114-149%). 2) In 15 patients with SSS, the M-SNRT were ranged from 1,270 to 12,330msec and 10 patients(66%) had significantly increased m-SNRT exceeding 1,560msec. The c-SNRT were ranged from 230 to 10,730msec and 13 patients(83%) had significantly increased c-SNRT exceeding 370msec. The % m-SNRT/SCL were ranged from 136 to 770% and 12 patients(80%) had significantly increased % m-SNRT/SCL exceeding 150%. 3) The SACT in normal group were 84+/-14msec(range 70-105msec) measured by continuous atrial pacing method and 80+/-19 msec(range 60-115msec) measured by atrial extrastimulation method. 4) In SSS, the SACT measured by continuous atrial pacing method was ranged from 80 to 1,050msec and 11/12 patients(92%) had significantly increased SACT exceeding 112 msec. The SACT measured by atrial extrastimulation method was ranged from 90 to 310msec and 7/8 patients(88%) had significantly increased SACT exceeding 118 msec. 5) C-SNRT, % m-SNRT/SCL, and SACT were more useful in detecting sinus node dysfunction than m-SNRT. 6) The AV conduction intervals in normal group were PA interval 17+/-6(range 5-25msec), AH interval 96+/-18 msec(range 70-135msec), and HV interval 46+/-7msec(range 35-55msec). 7) Rapid atrial pacing induced Wenckebach type second degree AV block proximal to H at pacing rate of 90 to 190/min in 14/16 normal adults. 2 patients maintained intact AV conduction upto maximum pacing rate of 200/min. 8) His bundle electrogram showed the site of AV block in 9 of 10 patients with AV conduction disturbances. The sites of AV block were AV nodal area 1 case, intraHis bundle 4 cases, and infraHis bundle 4 cases. 9) EPS provided a good supportive information that was useful in selecting pacemaker therapy in a patient with chronic bifascicular block who revealed prolonged HV interval and infraHis bundle block at a pacing rate of 70min. 10) The refractory periods of AV conduction system in normal group were AERP 274+/-54msec (range 170-410msec), AVN-FRp 467+/-74msec(range 285-600msec), AVN-ERP 341+76msec(range 190-460), and V-ERP 280+/-25msec(range 240-320msec).
Adult ; Atrioventricular Block ; Electrocardiography ; Electrophysiologic Techniques, Cardiac ; Humans ; Sick Sinus Syndrome ; Sinoatrial Node*