Abnormal Q wave which suggest myocardial necrosis frequently develope after successful reperfusion in acute myocardial infarction(AMI). To investigate patterns of abnormal Q wave development and the significance of the rapid progression of Q wave after reperfusion therapy, sixty patients with first attack of anterior AMI were studied. All patients showed complete occlusion of proximal or mid left anterior desending artery and received intracoronary thrombolysis therapy(ICT) with urokinase. ICT was completed within 6 hours of chest pain. Fourty for patients were reperfused. There were significant correlation between the number of leads with Q waves before ICT(PRE-nQ) and after ICT(POST-nQ) both in patients with reperfused and failed reperfusion(r=0.68, 0.96). Three patterns of abnormal Q wave progression were identified by the first correlationship of PRE-nQ and POST-Nq. Abnormal Q waves were rapidly progressed in 14 patients(Group I : 31.8%), regressed in 10 patients(Group II : 22.7%) and natureally progressed in 20 patients(45.5%). Patients in Group I had greater creatine kinease release(6133+/-2536mIU) and higher QRS score(immidiate ICT : 7.9+/-3.0, 7th day : 8.7+/-3.0) than those of patients in Group II(2135+/-1701mIU, 3.6+/-3.0, 4.6+/-3.3, respectively, P<0.01, all). A significant decreased wall motion of infarcted area was observed in Group I patients(% area change, area 26.1+/-14.0%) compared with Group II patients(46.5+/-10.7%, P<0.05). The followings can be concluded : Three patterns of abnormal Q wave progression were noted after reperfusion therapy in patients with anterior AMI. Rapid progression of abnormal Q wave may indicate accelerated ischemic injury or reperfusion injury rather than salvaging myocardium.
Arteries ; Chest Pain ; Creatine ; Humans ; Infarction* ; Myocardial Infarction ; Myocardium ; Necrosis ; Reperfusion Injury ; Reperfusion* ; Urokinase-Type Plasminogen Activator

BACKGROUND: Both left ventricular hypertrophy (LVH) and microalbuminuria (MA) are well described markers or surrogate for cardiovascular outcome. Many factors are known to be related to the two markers which are encountered together in some patients. But the epidemiological backgrounds for the two markers are not clearly demonstrated so far. METHODS: Measurements of echocardiographic left ventricular mass index (LVMI) and MA were introduced to the population survey in Yangpyeong County, Korea in 2005 and 2006 for 1,767 among 2,028 subjects. The criteria for MA were 17-250 mg/g of albumin creatinine ratio (ACR) in male and 25-355 mg/g in female. 1,636 data were analyzed. RESULTS: Age was 60.9 +/- 10.4 years and the proportion of female was 59.4% (972). Body mass index (BMI) was 24.7 +/- 3.21 kg/m2 and blood pressure were 124.1 +/- 17.3 mm Hg/80.0 +/- 10.5 mm Hg. LVMI was 45.3 +/- 11.6 g/m2.7 and ACR was 23.9 +/- 150.9 mg/g. Prevalence of LVH and MA were 23.5% and 12.2%, respectively. In male/female, odds ratios for MA were 1.035 (range, 1.010-1.061)/1.01 (range, 0.988-1.032) for age, 0.962 (range, 0.882-1.049)/0.941 (range, 0.881-1.006) for BMI, 1.754 (range, 1.097-2.804)/2.158 (range, 1.413-3.298) for hypertension (HTN), 4.87 (range, 2.883-8.226)/2.154 (range, 1.311-3.539) for diabetes, 1.005 (range, 0.999-1.012)/1.007 (range, 1.002-1.012) for cholesterol, and 1.011 (range, 0.987-1.035)/1.011 (range, 0.994-1.029) for LVH. CONCLUSIONS: In a population level, even if diabetes was strongest factor for MA, HTN is also independent factor for MA in both genders.
Albuminuria ; Blood Pressure ; Body Mass Index ; Cholesterol ; Creatinine ; Female ; Humans ; Hypertension ; Hypertrophy ; Hypertrophy, Left Ventricular ; Korea ; Male ; Obesity ; Odds Ratio ; Prevalence ; Republic of Korea

BACKGROUND: Masked hypertension is well known for its poor cardiovascular outcome. But clinical clues related to the masked hypertension and/or masked effect (ME) are rarely known. Physical activity and/or job stress are related to increased daytime blood pressure (BP). This study is to identify whether ME is caused by physical activity and/or job category. METHODS: Physical activity using Actical and masked effect by clinic BP and ambulatory BP monitoring were applied to 167 person for this study. RESULTS: Age of the subjects was 54.9 +/- 9.6 and 74 subjects were female (57.4%). Field worker was 81 (48.5%) and office worker was 86 (51.5%). Clinic BP was 125.8 +/- 14.3 mmHg / 79.8 +/- 10.9 mmHg in male and 119.0 +/- 14.0 mmHg / 74.2 +/- 8.9 mmHg in female (p = 0.03). Daily energy expenditure representing physical activity was 1,831.1 +/- 420.4 kcal. ME for systolic BP was 11.0 +/- 11.1 mmHg and ME for diastolic BP was 3.9 +/- 8.0 mmHg. In multiple linear regression adjusted by smoking and antihypertensive medication showed that clinic systolic BP was the only significant factor related to the ME (beta = -0.44755, p < 0.0001 in male, beta = -0.396, p < 0.0001 in female). Physical activity or job category was not related to ME. CONCLUSIONS: Neither physical activity nor job category is related to ME. This indicates that diagnosis of the masked hypertension is not affected by physical activity or job status.
Blood Pressure ; Blood Pressure Monitoring, Ambulatory ; Energy Metabolism ; Female ; Health Personnel ; Humans ; Hypertension ; Linear Models ; Male ; Masked Hypertension ; Masks ; Motor Activity ; Smoke ; Smoking

The aim of this paper is to estimate the nationwide incidence rate of lung cancer in Korea. The potential incident cases were identified by hospital visiting and mailing, based on the ICD-9 diagnostic codes on the claims as one of the following: ICD-9 162-165 (malignant neoplasms of the respiratory system), 212 (benign neoplasm), 231 (carcinoma in situ), 511 (pleurisy), or 195-199 (malignant neoplasms with uncoded sites) in beneficiaries data of the Korea Medical Insurance Corporation from January, 1988 to December, 1989. Thereafter, the identified cases were confirmed by an oncologist (Dr. DS Heo). When adjusted with age distribution of the Korean population based on the 1985 Population Census, the incidence rate was 22.3 per 100,000 in males (95% CI: 21.70-23.01) and 8.37 (95% CI: 7.97-8.78) in females in 1989. And the age-adjusted rate for the world population was 39.63 in males and 9.95 in females.
Adult ; Age Factors ; Aged ; Comparative Study ; Female ; Human ; Incidence ; Korea/epidemiology ; Lung Neoplasms/*epidemiology/pathology ; Male ; Middle Age ; Sex Factors