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1.
Korean Circulation Journal ; : 31-35, 2017.
Artigo em Inglês | WPRIM | ID: wpr-98379

RESUMO

BACKGROUND AND OBJECTIVES: The clinical outcome of patient with an acute myocardial infarction (AMI) undergoing percutaneous coronary intervention (PCI), with or without achievement of target low density lipoprotein-cholesterol (LDL-C), has little known information. This study investigated if target LDL-C level (below 70 mg/dL) achievements in patients with AMI showed better clinical outcomes or not. SUBJECTS AND METHODS: Between May 2008 and September 2012, this study enrolled 13473 AMI patients in a large-scale, prospective, multicenter Korean Myocardial Infarction (KorMI) registry. 12720 patients survived and 6746 patients completed a 1-year clinical follow up. Among them 3315 patients received serial lipid profile follow-ups. Propensity score matching was applied to adjust for differences in clinical baseline and angiographic characteristics, producing a total of 1292 patients (646 target LDL-C achievers vs. 646 non-achievers). The primary end point was the composite of a 1-year major adverse cardiac event (MACE) including cardiac death, recurrent myocardial infarction (MI), target lesion revascularization (TLR) and coronary artery bypass grafting. RESULTS: After propensity score matching, baseline clinical and angiographic characteristics were similar between the two groups. Clinical outcomes of the propensity score matched patients who showed no significant differences in cardiac death (0.5% vs. 0.5%, p=1.000), recurrent MI (1.1% vs. 0.8%, p=0.562), TLR (5.0% vs. 4.5%, p=0.649), MACEs (6.5% vs. 5.9%, p=0.644) and stent thrombosis (2.5% vs. 1.9%, p=0.560). CONCLUSION: In this propensity-matched comparison, AMI patients undergoing PCI with a target LDL-C (below 70 mg/dL) achievement did not show better clinical outcomes.


Assuntos
Humanos , Ponte de Artéria Coronária , Morte , Seguimentos , Infarto do Miocárdio , Intervenção Coronária Percutânea , Pontuação de Propensão , Estudos Prospectivos , Stents , Trombose , Resultado do Tratamento
2.
The Korean Journal of Internal Medicine ; : 501-506, 2016.
Artigo em Inglês | WPRIM | ID: wpr-48502

RESUMO

BACKGROUND/AIMS: Treatment of coronary in-stent restenosis (ISR) is still associated with a high incidence of recurrence. We aimed to compare the efficacy and safety of drug-eluting balloons (DEB) for the treatment of ISR as compared with conventional balloon angioplasty (BA) and drug-eluting stents (DES). METHODS: Between January 2006 and May 2012 a total of 177 patients (188 lesions, 64.1 ± 11.7 years old) who underwent percutaneous coronary intervention for ISR were retrospectively enrolled. Clinical outcomes were compared between patients treated with DEB (n = 58, 32.8%), conventional BA (n = 65, 36.7%), or DES (n = 54, 30.5%). The primary end point was a major adverse cardiac event (MACE), defined as a composite of cardiac death, myocardial infarction, and target lesion revascularization(TLR). RESULTS: Baseline characteristics were not different except for a history of previous MI, which was more frequent in patients treated by conventional BA or DES than in patients treated by DEB (40.0% vs. 48.1% vs. 17.2%, respectively, p = 0.002). The total incidences of MACEs were 10.7%, 7.4%, and 15.4% in patients treated by DEB, DES, or conventional BA, respectively (p > 0.05). TLR was more frequent in patients treated by conventional BA than in patients treated by DEB or DES, but this was not statistically significant (10.8% vs. 6.9% vs. 3.7%, p > 0.05 between all group pairs, respectively). CONCLUSIONS: This study showed that percutaneous coronary intervention using DEB might be a feasible alternative to conventional BA or DES implantation for treatment of coronary ISR. Further large-scaled, randomized study assessing long-term clinical and angiographic outcomes will be needed.


Assuntos
Humanos , Angioplastia com Balão , Reestenose Coronária , Morte , Stents Farmacológicos , Incidência , Infarto do Miocárdio , Intervenção Coronária Percutânea , Recidiva , Estudos Retrospectivos
3.
Korean Circulation Journal ; : 527-533, 2013.
Artigo em Inglês | WPRIM | ID: wpr-24544

RESUMO

BACKGROUND AND OBJECTIVES: We investigated the predictors of the recovery of depressed left ventricular ejection fraction (LVEF) in patients with moderate or severe left ventricular (LV) systolic dysfunction after acute myocardial infarction (MI). SUBJECTS AND METHODS: We analyzed 1307 patients, who had moderately or severely depressed LVEF ( or =45%). RESULTS: Recovery of LV systolic dysfunction was observed in 51% of the subjects (group II, n=663; DeltaLVEF, 16.2+/-9.3%), whereas there was no recovery in the remaining subjects (group I, n=644; DeltaLVEF, 0.6+/-7.1%). In the multivariate analysis, independent predictors of recovery of depressed LVEF were as follows {odds ratio (OR) [95% confidence interval (CI)]}: moderate systolic dysfunction {LVEF > or =30% and <45%; 1.73 (1.12-2.67)}, Killip class I-II {1.52 (1.06-2.18)}, no need for diuretics {1.59 (1.19-2.12)}, non-ST-segment elevation MI {1.55 (1.12-2.16)}, lower peak troponin I level {<24 ng/mL, median value; 1.55 (1.16-2.07)}, single-vessel disease {1.53 (1.13-2.06)}, and non-left anterior descending (LAD) culprit lesion {1.50 (1.09-2.06)}. In addition, the use of statin was independently associated with a recovery of LV systolic dysfunction {OR (95% CI), 1.46 (1.07-2.00)}. CONCLUSION: Future contractile recovery of LV systolic dysfunction following acute MI was significantly related with less severe heart failure at the time of presentation, a smaller extent of myonecrosis, or non-LAD culprit lesions rather than LAD lesions.


Assuntos
Humanos , Diuréticos , Ecocardiografia , Seguimentos , Insuficiência Cardíaca , Inibidores de Hidroximetilglutaril-CoA Redutases , Coreia (Geográfico) , Análise Multivariada , Infarto do Miocárdio , Prognóstico , Volume Sistólico , Troponina I
4.
Korean Circulation Journal ; : 666-670, 2011.
Artigo em Inglês | WPRIM | ID: wpr-151738

RESUMO

BACKGROUND AND OBJECTIVES: Slow coronary flow (SCF) is characterized by delayed contrast dye opacification without significant stenosis of epicardial coronary arteries. However, the pathophysiology and clinical implications of SCF are not fully understood. Some reports have suggested that SCF might be caused by atherosclerosis in the coronary artery microvasculature. Measuring carotid intima-media thickness (IMT) and pulse wave velocity (PWV), which are non-invasive and simple diagnostic tools, was developed to detect subclinical atherosclerosis. Thus, we determined IMT and PWV, and their possible relationship in a SCF group and a normal coronary flow (NCF) group of patients. SUBJECTS AND METHODS: We included 101 patients who complained of chest pain but had a normal coronary angiogram. Thrombolysis in Myocardial Infarction frame count (TIMI frame count, TFC) was evaluated in the left and right coronary arteries. We defined SCF as a TFC of more than 25. Carotid IMT was measured by ultrasonography in both common carotid arteries. PWV was calculated from pulse transit time between the brachial and ankle arteries. RESULTS: Fifteen patients were included in the SCF group and 86 patients in the NCF group. Male patients (n=11, 73.3%) were significantly more common in the SCF group than in the NCF group (n=37, 43.0%, p<0.05). The TFC of the SCF and NCF groups were 28.8+/-3.5 and 15.7+/-4.5, respectively. The carotid IMT in the SCF group increased significantly compared to that in the NCF group (1.2+/-0.3 mm vs. 0.8+/-0.1 mm, p<0.01). However, no significant difference in PWV was observed between the two groups. CONCLUSION: SCF may reflect early atherosclerotic changes in the coronary artery microvasculature.


Assuntos
Animais , Humanos , Masculino , Tornozelo , Aterosclerose , Artéria Carótida Primitiva , Espessura Intima-Media Carotídea , Dor no Peito , Constrição Patológica , Vasos Coronários , Microcirculação , Microvasos , Infarto do Miocárdio , Análise de Onda de Pulso
5.
Korean Circulation Journal ; : 243-246, 2010.
Artigo em Inglês | WPRIM | ID: wpr-28914

RESUMO

Despite its low incidence, stent thrombosis (ST) is one of the most dreaded complications of percutaneous coronary intervention. Endeavor (Medtronics Europe SA) is a new zotarolimus-eluting stent (ZES) with a favorable safety profile that was reported in early and ongoing trials. However, few lethal stent thromboses related to this new drug eluting stent (DES) have been reported. We experienced a case of simultaneous subacute ZES thromboses, 6 days after stent implantations in the proximal left anterior descending artery and the proximal right coronary artery (RCA).


Assuntos
Artérias , Vasos Coronários , Stents Farmacológicos , Europa (Continente) , Incidência , Intervenção Coronária Percutânea , Sirolimo , Stents , Trombose
6.
Korean Circulation Journal ; : 665-670, 2010.
Artigo em Inglês | WPRIM | ID: wpr-98803

RESUMO

BACKGROUND AND OBJECTIVES: Coronary artery disease (CAD) is a major cause of heart failure associated with left ventricular systolic dysfunction (LVSD). The prognosis of LVSD is significantly influenced by the etiology of heart failure and therefore, differentiation of significant CAD from other etiologies is important. Carotid intima-media thickness (IMT) and plaque are useful predictors for cardiovascular events, including stroke and CAD. The purpose of this study was to evaluate the predictive value of carotid IMT and plaque for the diagnosis of CAD in LVSD patients. SUBJECTS AND METHODS: Seventy-three (n= 73, 47 male, 67.6+/-12.4 years) patients hospitalized for heart failure with severe LVSD were retrospectively enrolled. The severity of CAD was analyzed by the Duke Jeopardy Score system, and carotid IMT and plaque were measured according to the Mannheim Carotid IMT Consensus. RESULTS: Significant CAD was found in 41 patients (56.1%, CAD group) on coronary angiography. Mean common carotid artery (CCA) IMT (0.74+/-0.05 mm vs. 1.04+/-0.04 mm, p<0.01) was significantly higher in the CAD group. Plaque in CCA (6.25% vs. 19.5%, p<0.01) and plaque in bulb (25.0% vs. 60.9%, p<0.001) were significantly higher in the CAD group. Mean CCA IMT {odds ratio (OR) 2.61, 95% confidence interval (CI) 1.134-4.469, p<0.01} and plaque in bulb (OR 4.69, 95% CI 1.702-12.965, p<0.01) were significant predictors for the diagnosis of CAD according to multivariate logistic regression analysis. CONCLUSION: In patients with severe LVSD, mean CCA IMT and bulb plaque can be useful additional predictors for the diagnosis of CAD.


Assuntos
Humanos , Masculino , Artéria Carótida Primitiva , Espessura Intima-Media Carotídea , Angiografia Coronária , Doença da Artéria Coronariana , Insuficiência Cardíaca , Modelos Logísticos , Prognóstico , Estudos Retrospectivos , Acidente Vascular Cerebral
7.
Korean Circulation Journal ; : 71-74, 2009.
Artigo em Coreano | WPRIM | ID: wpr-161236

RESUMO

BACKGROUND AND OBJECTIVES: To evaluate the accuracy and the clinical utility of the Coaguchek(R) XS, a portable point-of-care coagulometer, compared to standard laboratory methods in Korean patients. SUBJECTS AND METHODS: We included 107 patients with atrial fibrillation on long-term oral warfarin therapy. The prothrombin time as expressed by the international normalized ratio (INR) was measured by the portable Coaguchek(R) XS system as well as standard laboratory methods. Agreement between the two methods was defined as a difference of less than 0.3 between the INR values. RESULTS: The INR determined by the portable Coaguchek(R) XS had excellent correlation with the values obtained by standard methods (r=0.984, p3.0). There was a 91.6% agreement between the two methods. Only nine cases (8.4%) had a difference of more than 0.3; this was mainly noted in the high INR group. CONCLUSION: The portable self-testing of the INR by the Coaguchek(R) XS might be a reliable alternative to hospital based laboratory testing in Korean patients.


Assuntos
Humanos , Fibrilação Atrial , Coeficiente Internacional Normatizado , Tempo de Protrombina , Varfarina
8.
Korean Circulation Journal ; : 666-670, 2008.
Artigo em Coreano | WPRIM | ID: wpr-146097

RESUMO

BACKGROUND AND OBJECTIVES: Some reports have suggested that coronary microvascular dysfunction plays a role in the recovery of myocardial function in patients with obstructive coronary artery disease. Thrombolysis in myocardial infarction (TIMI) frame count (TFC) is regarded as a simple, reliable method for evaluating microvascular function. We evaluated microvascular function using TFC immediately after coronary intervention and compared TFC with left ventricular systolic function eight months later. SUBJECTS AND METHODS: We studied 68 patients with obstructive coronary artery disease who underwent coronary intervention. Just after intervention, TFC was calculated with the standard method. Left ventricular systolic function was assessed with left ventricular diastolic dimension (LVEDd), ejection fraction (EF), and wall motion score index (WMSI). Eight months after intervention, we completed follow-up coronary angiography and echocardiography. We defined high TFC (HTFC) as a TFC greater than 18. RESULTS: Ten patients were in the HTFC group, and 58 patients were in the low TFC (LTFC) group. There was no difference between the two groups with regard to baseline cardiovascular characteristics and angiographic findings. Just after intervention, the HTFC group showed significantly higher LVEDd (56.6+/-8.9 mm) and WMSI (1.60+/-0.65) compared to the LTFC group (50.3+/-5.9 mm, p0.05). Eight months after intervention, there was also a significant decrease in the WMSI in the LTFC group (1.23+/-0.25, p0.05). CONCLUSION: Increased TFC immediately after coronary intervention is an important poor prognostic factor related to myocardial systolic function eight months after coronary intervention. Coronary microvascular dysfunction may influence myocardial recovery in the setting of obstructive coronary artery disease.


Assuntos
Humanos , Angioplastia , Angiografia Coronária , Doença da Artéria Coronariana , Doença das Coronárias , Vasos Coronários , Ecocardiografia , Seguimentos , Microcirculação , Infarto do Miocárdio
9.
Korean Circulation Journal ; : 661-665, 2006.
Artigo em Coreano | WPRIM | ID: wpr-72566

RESUMO

BACKGROUND AND OBJECTIVES: Smoking has been known to be an independent risk factor of the coronary morbidity induced by coronary artery endothelial dysfunction, but its detailed impact, including the duration and amount of smoking on coronary artery spasm, has not been clarified yet. We investigated the incidence of acetylcholine (Ach)-induced coronary artery spasm according to smoking and the smoking-related parameters. SUBJECTS AND METHODS: The study consisted of 306 patients (163 males, age: 56.1+/-11.2 years), without significant coronary artery disease underwent Ach provocation testing by injecting incremental doses of 20, 50 and 100 ug Ach into the left coronary artery. Significant coronary artery spasm was defined as focal or diffuse severe transient luminal narrowing (>75%) with/without chest pain or ST-T change of the EKG. The impact of conventional risk factors, including smoking and the smoking-related parameters, on coronary artery spasm was analyzed. RESULTS: The conventional risk factors of coronary atherosclerosis, including hypertension, DM and hyperlipidemia, were numerically higher in the provocation (+) group, but the differences were not statistically different between the two groups. Only smoking itself was significantly higher in the provocation (+) group whereas the smoking duration, amount and the duration of quitting smoking were not different between the two groups. CONCLUSION: Smoking is known to be an independent risk factor of coronary artery spasm, but smoking-related parameters such as the smoking duration, the amount and the duration of quitting smoking were not associated with coronary artery spasm.


Assuntos
Humanos , Masculino , Acetilcolina , Dor no Peito , Doença da Artéria Coronariana , Vasos Coronários , Eletrocardiografia , Hiperlipidemias , Hipertensão , Incidência , Fenobarbital , Fatores de Risco , Fumaça , Fumar , Espasmo
10.
Korean Circulation Journal ; : 84-87, 2005.
Artigo em Inglês | WPRIM | ID: wpr-42256

RESUMO

An anomalous origin of the left coronary artery (LCA )from the pulmonary artery (ALCAPA syndrome )or Bland-White-Garland syndrome is a rare congenital cardiac anomaly. We report a 65-year old female patient who presented with atypical chest discomfort. Coronary angiography and three-dimensional multidetector computed tomography coronary angiography demonstrated the ectatic right coronary artery (RCA )arising from the aorta, rich collaterals from the RCA to LCA and the ectatic tortuous LCA that originated from the pulmonary trunk.


Assuntos
Idoso , Feminino , Humanos , Aorta , Síndrome de Bland-White-Garland , Circulação Colateral , Angiografia Coronária , Anomalias dos Vasos Coronários , Vasos Coronários , Tomografia Computadorizada Multidetectores , Artéria Pulmonar , Tórax
11.
Korean Journal of Medicine ; : 238-242, 2005.
Artigo em Coreano | WPRIM | ID: wpr-145601

RESUMO

The number of HIV infection is increasing nowadays, and some infectious diseases complicated in HIV- infected hosts reveal different clinical features from those well known from the past. Syphilis seems to show more rapid disease progression and many clinical features in HIV-infected hosts. We experienced a HIV-infected patient who had presented as syphilitic papillitis. A 42-year old man complaining of decreased visual acuity and eye ball redness was referred to our medical center. He had a history of recurrent uveitis for past 3 months, which was refractory to the conventional therapy. The patient was confirmed as having HIV-1 infection and syphilitic papillitis. He was treated with penicillin G 2.4 million units intramuscularly weekly for 6 weeks and anti-retroviral agents. However, ocular symptoms for syphilis recurred two months later, and the patient was retreated with the same regimen and cured.


Assuntos
Adulto , Humanos , Antirretrovirais , Doenças Transmissíveis , Progressão da Doença , Infecções por HIV , HIV , HIV-1 , Papiledema , Penicilina G , Sífilis , Uveíte , Acuidade Visual
12.
Korean Journal of Medicine ; : 528-536, 2005.
Artigo em Coreano | WPRIM | ID: wpr-209710

RESUMO

BACKGROUND: Chronic systemic inflammation in ESRD patients due to uremia and hemodialysis procedure itself comes into notice as a main factor for premature mortality secondary to rapid progressing atherosclerosis. Various pro-inflammatory cytokine, known to mediate these reaction of malnutrition, inflammation and atherosclerosis, are regulated by anti-inflammatory cytokine, such as IL-10. Quantitative production of IL-10 shows interindividual variability determined genetically by polymorphisms of promotor gene. The aim of this study was to measure the degree of IL-10 synthesis in ESRD patients treated with hemodialysis and evaluate the association with genotypes and cardiovascular risk factors. METHODS: The IL-10 genotypes for polymorphic bases at position at -1082 was determined in 66 chronic hemodialysis patients and 98 healthy subjects using highly specific PCR and the lipopolysaccharide (LPS)-stimulated IL-10 (sIL-10) release from whole blood were measured by ELISA. RESULTS: The distribution of the IL-10 genotypes in hemodialysis patients were similar to the general population, but the proportion of A allele in hemodialysis group was significantly higher (72.3% vs 59.8%, p=0.05). sIL-10 concentration were lower in hemodialysis patients compared with normal control (21.1 pg/mg vs 36.1 pg/mg, p=0.001) and both groups showed same relationship of sIL-10 with genotypes, that AA type was low producer. In multiple regression analysis, sIL-10 of normal group correlated negatively with age, creatinine, uric acid and existence LVH, and positively with albumin, hemoglobin. On the other hand, lower albumin, lower ejection fraction on echocardiography and existence of left ventricular hypertrophy were associated with higher sIL-10 in hemodialysis group. CONCLUSION: Polymorphisms by IL-10 genotypes were associated with production of IL-10 by endotoxin stimulation, and sIL-10 was lower in hemodialysis patients than in normal control. According to relation of sIL-10 with cardiovascular risk factors such as existence LVH, ejection fraction and malnutrition, it could be suggested that sIL-10 is useful marker in evaluating the risk of cardiovascular events.


Assuntos
Humanos , Alelos , Aterosclerose , Doenças Cardiovasculares , Creatinina , Ecocardiografia , Ensaio de Imunoadsorção Enzimática , Genótipo , Mãos , Hipertrofia Ventricular Esquerda , Inflamação , Interleucina-10 , Falência Renal Crônica , Desnutrição , Mortalidade Prematura , Reação em Cadeia da Polimerase , Diálise Renal , Fatores de Risco , Uremia , Ácido Úrico
13.
Korean Circulation Journal ; : 658-664, 2005.
Artigo em Coreano | WPRIM | ID: wpr-205107

RESUMO

BACKGROUND AND OBJECTIVES: Angiotension II, the active component in the renin angiotensin system, modulates blood pressure via vasoconstriction and sodium retention. In normal subjects, the active level of the RAS is reflected by the plasma renin activity (PRA). Importantly, when blood pressure is elevated, the level of RAS is reactively suppressed, and that of PRA approaches zero. Therefore, this study was conducted to find the characteristics of hypertensive patients according to the level of circulating renin. SUBJECTS AND METHODS: The subjects were 275 essential hypertensive patients, with a mean age of 53.2+/-11.9 years, 9.5% of which had diabetes. Patients were classified into 3 groups: low, normal and high renin (high PRA>4.5 ng/mL/h, normal PRA: 0.75-4.5 ng/mL/h and low PRA55 year-old) compared to younger patients (58.7 vs. 36.2%, both p<0.001). However, there were no significant differences in the hemodynamics (SBP, DBP and heart rate), LVMI and cardiovascular risk factors (obesity, dyslipidemia and diabetes) between the 3 groups. CONCLUSION: Women and elderly people are more likely to have LREH compare to men and younger people, who are more likely to have HREH.


Assuntos
Idoso , Feminino , Humanos , Masculino , Aldosterona , Pressão Sanguínea , Índice de Massa Corporal , Dislipidemias , Epidemiologia , Coração , Frequência Cardíaca , Hemodinâmica , Hipertensão , Obesidade , Plasma , Renina , Sistema Renina-Angiotensina , Fatores de Risco , Sódio , Vasoconstrição
14.
Korean Journal of Hematology ; : 113-117, 2004.
Artigo em Coreano | WPRIM | ID: wpr-721017

RESUMO

Iliac vein compression syndrome (May-Thurner syndrome) is caused by compression of the left iliac vein against the fifth lumbar vertebra by the right iliac artery, resulting in impaired venous return and left iliofemoral thrombosis. We experienced a case of a 68-year-old woman who showed sudden left lower extremity edema. By the Doppler sonogram, deep vein thrombosis of left lower extremity was detected. It was involved only left side and extended to iliac vein level. In the venogram, spur like projection was noticed on left iliac vein. Through endovascular thrombectomy, thrombolysis and angioplasty, venous return was completely restored. We report a case of May-Thurner syndrome who was treated with various endovascular management successfully.


Assuntos
Idoso , Feminino , Humanos , Angioplastia , Edema , Artéria Ilíaca , Veia Ilíaca , Extremidade Inferior , Síndrome de May-Thurner , Coluna Vertebral , Trombectomia , Trombose , Trombose Venosa
15.
Tuberculosis and Respiratory Diseases ; : 664-669, 2004.
Artigo em Coreano | WPRIM | ID: wpr-106171

RESUMO

Extramedullary plasmacytoma(EMP) comprises 5% of all plasma cell neoplasms and commonly occurs in the upper airway or digestive tract. However, it rarely develops in the lungs. We present a case of primary pulmonary plasmacyotma in a 45 year old man, who presented as an endobronchial mass with a pleural effusion, but without evidence of multiple myeloma. The treatment options for EMP include surgery, surgery and radiotherapy, surgery and chemotherapy or chemotherapy alone. Surgery and radiation therapy appeared to be equally effective forms of treatment. The local recurrence rate was reported to be 30%, with 48% progressing to multiple myeloma, and median survival was reported to be 63-101 months. Our patient was initially treated with melphalan and prednisolone. However the disease progressed, and radiotherapy was combined with chemotherapy. In addition, the chemotherapy regimen was also changed to thalidomide and dexamethasone. The patient did not respond to this treatment regimen and finally died.


Assuntos
Humanos , Pessoa de Meia-Idade , Dexametasona , Tratamento Farmacológico , Trato Gastrointestinal , Pulmão , Melfalan , Mieloma Múltiplo , Neoplasias de Plasmócitos , Plasmocitoma , Derrame Pleural , Prednisolona , Radioterapia , Recidiva , Talidomida
16.
Korean Circulation Journal ; : 142-150, 2004.
Artigo em Coreano | WPRIM | ID: wpr-52940

RESUMO

BACKGROUND AND OBJECTIVES: There is still uncertainty regarding the relative importance of systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse pressure (PP) in predicting the risk of cardiovascular disease. The relative importance of the BP components, as markers of left ventricular hypertrophy (LVH) and coronary artery disease (CAD), were examined in relation to age. SUBJECTS AND METHODS: In 257 subjects receiving no antihypertensive medication, LVH was determined using the M-mode echocardiography when left ventricular mass index (LVMI) was >or =129 g/m2 in men or >or =118 g/m2 in women. In a further 265 subjects, CAD was determined using the coronary angiography when stenosis of the coronary arterial diameter was >or =70%. The most important BP component was determined using a logistic regression analysis. RESULTS: With respect to LVH, in the group 0.10) for DBP, SBP and PP respectively. In the group 50 to 59 years of age, ORs were 1.65, 1.35, 1.36 (all por =60 years of age, ORs were 1.56 (p0.10), 1.07 (p>0.10), 1.21 (por =60 years of age, no BP component had a statistical significance. CONCLUSION: With increasing age, there was a gradual shift from DBP to SBP and then to PP as the marker with the greatest relation to LVH. In all age group, PP was the strongest marker of CAD.


Assuntos
Feminino , Humanos , Masculino , Envelhecimento , Pressão Sanguínea , Doenças Cardiovasculares , Constrição Patológica , Angiografia Coronária , Doença da Artéria Coronariana , Doença das Coronárias , Ecocardiografia , Hipertrofia Ventricular Esquerda , Modelos Logísticos , Razão de Chances , Incerteza
17.
Korean Circulation Journal ; : 186-194, 2004.
Artigo em Coreano | WPRIM | ID: wpr-52935

RESUMO

BACKGROUND AND OBJECTIVES: It has been demonstrated that sleep apnea syndrome predisposes to cardiac rhythm disturbances and cardiovascular risks such as systemic hypertension. This study was conducted to investigate the types and frequency of cardiac arrhythmias which occurred during sleep and the effects of nasal continuous positive airway pressure (nCPAP) therapy in the patients with sleep apnea syndrome. SUBJECTS AND METHODS: The subjects were 197 patients who were referred to the Sleep Research Center of Korea University Medical Center for polysomnography due to snoring and sleep apnea from Jan. 1st 2000 to July 31st 2002. Of the 197 patients, 44 with severe sleep apnea syndrome, whose respiratory disturbance index (RDI) exceeded 40/hr, were enrolled. Their electrograms on polysomnography before and after nCPAP therapy were analyzed. RESULTS: Of the 44 subjects, 32 (72.8%) showed cardiac arrhythmias. The types of arrhythmias were atrial premature beats (APBs, n=17), premature ventricular complexes (PVCs, n=15), sinus bradycardia (heart rate less than 40 per minute, n=6), sinus pause (n=1), and sinoatrial block (n=5). No fatal arrhythmias were identified. Most, 93.2%, of these arrhythmias arose immediately after hypopneic or apneic episodes, and were accompanied by a significant decrease in SaO2, from 91.4% to 84.7% (p<0.05). After nCPAP therapy, these arrhythmias were completely disappeared in 11 patients (34.4%) and diminished in 15 (46.9%). Hypopneic or apneic episodes were preceded by cardiac arrhythmias in only 36.4% with nCPAP (p<0.05 vs. before). CONCLUSION: Cardiac arrhythmias were demonstrated in 72.8% of cases of severe sleep apnea syndrome, which were mostly benign and preceded by hypopneic or apneic episodes. nCPAP therapy decreased the frequency of hypopnea and apnea with elevated arterial O2 saturation, and effectively eliminated cardiac arrhythmias.


Assuntos
Humanos , Centros Médicos Acadêmicos , Apneia , Arritmias Cardíacas , Bradicardia , Complexos Cardíacos Prematuros , Pressão Positiva Contínua nas Vias Aéreas , Hipertensão , Coreia (Geográfico) , Polissonografia , Respiração com Pressão Positiva , Bloqueio Sinoatrial , Síndromes da Apneia do Sono , Ronco , Complexos Ventriculares Prematuros
18.
Journal of the Korean Society of Echocardiography ; : 94-101, 2003.
Artigo em Coreano | WPRIM | ID: wpr-228028

RESUMO

BACKGROUND AND PURPOSE: Left ventricular hypertrophy (LVH) and increased common carotid artery intimamedia thickness (IMT) are known target organ damages of hypertension. However, the relation between LVH and carotid artery IMT is not well defined in Korea. Thus, the purpose of this study is to evaluate the association of common carotid artery IMT and luminal diameter (LD) with LVH (LV mass) in patients with hypertension. METHOD: LV mass was measured by echocardiography and IMT and LD of right and left common carotid artery were measured by high resolution ultrasound in non-hypertensive subjects (n=24), patients with known hypertension without LVH (n=22) and hypertension with LVH (n=22). Data obtained were adjusted statistically for age. RESULTS: Mean IMT (in mm) were 0.51+/-0.12 in non-hypertension group, 0.61+/-0.09 in hypertension without LVH group and 0.73+/-0.13 in hypertension with LVH group (age adjusted p<0.0001 by ANCOVA). Mean systolic and diastolic IMT/LD ratios were 0.077+/-0.015 and 0.089+/-0.018 in non-hypertensive group, 0.052+/-0.015 and 0.09+/-0.014 in hypertension without LVH group, and 0.085+/-0.015 and 0.104+/-0.022 in hypertension with LVH group (p=0.063 for systolic ratio and 0.137 for diastolic ratio). CONCLUSION: These findings suggest that there is a significant correlation between carotid artery intima-media thickness and LVH in hypertensio.


Assuntos
Humanos , Artérias Carótidas , Artéria Carótida Primitiva , Espessura Intima-Media Carotídea , Ecocardiografia , Hipertensão , Hipertrofia Ventricular Esquerda , Coreia (Geográfico) , Fenobarbital , Ultrassonografia
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