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1.
Korean Circulation Journal ; : 304-319, 2022.
Article in English | WPRIM | ID: wpr-926512

ABSTRACT

Background and Objectives@#De-escalation of dual-antiplatelet therapy through dose reduction of prasugrel improved net adverse clinical events (NACEs) after acute coronary syndrome (ACS), mainly through the reduction of bleeding without an increase in ischemic outcomes. Whether the benefits of de-escalation are sustained in highly thrombotic conditions such as ST-elevation myocardial infarction (STEMI) is unknown. We aimed to assess the efficacy and safety of de-escalation therapy in patients with STEMI or non-STsegment elevation ACS (NSTE-ACS). @*Methods@#This is a pre-specified subgroup analysis of the HOST-REDUCE-POLYTECH-ACS trial. ACS patients were randomized to prasugrel de-escalation (5 mg daily) or conventional dose (10 mg daily) at 1-month post-percutaneous coronary intervention. The primary endpoint was a NACE, defined as a composite of all-cause death, non-fatal myocardial infarction, stent thrombosis, clinically driven revascularization, stroke, and bleeding events of grade ≥2 Bleeding Academic Research Consortium (BARC) criteria at 1 year. @*Results@#Among 2,338 patients included in the randomization, 326 patients were diagnosed with STEMI. In patients with NSTE-ACS, the risk of the primary endpoint was significantly reduced with de-escalation (hazard ratio [HR], 0.65; 95% confidence interval [CI], 0.48– 0.89; p=0.006 for de-escalation vs. conventional), mainly driven by a reduced bleeding. However, in those with STEMI, there was no difference in the occurrence of the primary outcome (HR, 1.04; 95% CI, 0.48–2.26; p=0.915; p for interaction=0.271). @*Conclusions@#Prasugrel dose de-escalation reduced the rate of NACE and bleeding, without increasing the rate of ischemic events in NSTE-ACS patients but not in STEMI patients.

2.
Article in English | WPRIM | ID: wpr-811146

ABSTRACT

BACKGROUND: Cardiovascular risk remains increased despite optimal low density lipoprotein cholesterol (LDL-C) level induced by intensive statin therapy. Therefore, recent guidelines recommend non-high density lipoprotein cholesterol (non-HDL-C) as a secondary target for preventing cardiovascular events. The aim of this study was to assess the efficacy and tolerability of omega-3 fatty acids (OM3-FAs) in combination with atorvastatin compared to atorvastatin alone in patients with mixed dyslipidemia.METHODS: This randomized, double-blind, placebo-controlled, parallel-group, and phase III multicenter study included adults with fasting triglyceride (TG) levels ≥200 and <500 mg/dL and LDL-C levels <110 mg/dL. Eligible subjects were randomized to ATOMEGA (OM3-FAs 4,000 mg plus atorvastatin calcium 20 mg) or atorvastatin 20 mg plus placebo groups. The primary efficacy endpoints were the percent changes in TG and non-HDL-C levels from baseline at the end of treatment.RESULTS: After 8 weeks of treatment, the percent changes from baseline in TG (−29.8% vs. 3.6%, P<0.001) and non-HDL-C (−10.1% vs. 4.9%, P<0.001) levels were significantly greater in the ATOMEGA group (n=97) than in the atorvastatin group (n=103). Moreover, the proportion of total subjects reaching TG target of <200 mg/dL in the ATOMEGA group was significantly higher than that in the atorvastatin group (62.9% vs. 22.3%, P<0.001). The incidence of adverse events did not differ between the two groups.CONCLUSION: The addition of OM3-FAs to atorvastatin improved TG and non-HDL-C levels to a significant extent compared to atorvastatin alone in subjects with residual hypertriglyceridemia.


Subject(s)
Adult , Atorvastatin , Cholesterol , Cholesterol, LDL , Dyslipidemias , Fasting , Fatty Acids, Omega-3 , Humans , Hydroxymethylglutaryl-CoA Reductase Inhibitors , Hypertriglyceridemia , Incidence , Lipoproteins , Triglycerides
4.
Article in Korean | WPRIM | ID: wpr-716389

ABSTRACT

This paper presents a case report of tension pneumoperitoneum that occurred in a 4-month-old girl with intussusception during pneumatic reduction. Tension pneumoperitoneum is a rare but life threatening complication in air pressure enema that is commonly used to turn the intussuscepted bowel to its original position. The incidence of a simple pneumoperitoneum due to a bowel perforation associated with attempted pneumatic reduction for intussusception is as high as 4%. The simple pneumoperitoneum changed rapidly to tension pneumoperitoneum and immediate needle decompression was life-saving in this case. Similar to a tension pneumothorax, the diagnosis is clinical and management should not be delayed awaiting other confirmatory tests. The emergency physician must recognize this rare complication of pneumatic reduction and promptly treat the ensuing tension pneumoperitoneum after bowel perforation with immediate needle decompression as a part of the initial resuscitation.


Subject(s)
Air Pressure , Decompression , Diagnosis , Emergencies , Enema , Female , Humans , Incidence , Infant , Intussusception , Needles , Pneumoperitoneum , Pneumothorax , Resuscitation
5.
Article in English | WPRIM | ID: wpr-58426

ABSTRACT

Enterovirus 71 frequently involves the central nervous system and may present with a variety of neurologic manifestations. Here, we aimed to describe the clinical features, magnetic resonance imaging (MRI) findings, and cerebrospinal fluid (CSF) profiles of patients presenting with neurologic complications of enterovirus 71 infection. We retrospectively reviewed the records of 31 pediatric patients hospitalized with acute neurologic manifestations accompanied by confirmed enterovirus 71 infection at Ulsan University Hospital between 2010 and 2014. The patients' mean age was 2.9 ± 5.5 years (range, 18 days to 12 years), and 80.6% of patients were less than 4 years old. Based on their clinical features, the patients were classified into 4 clinical groups: brainstem encephalitis (n = 21), meningitis (n = 7), encephalitis (n = 2), and acute flaccid paralysis (n = 1). The common neurologic symptoms included myoclonus (58.1%), lethargy (54.8%), irritability (54.8%), vomiting (48.4%), ataxia (38.7%), and tremor (35.5%). Twenty-five patients underwent an MRI scan; of these, 14 (56.0%) revealed the characteristic increased T2 signal intensity in the posterior region of the brainstem and bilateral cerebellar dentate nuclei. Twenty-six of 30 patients (86.7%) showed CSF pleocytosis. Thirty patients (96.8%) recovered completely without any neurologic deficits; one patient (3.2%) died due to pulmonary hemorrhage and shock. In the present study, brainstem encephalitis was the most common neurologic manifestation of enterovirus 71 infection. The characteristic clinical symptoms such as myoclonus, ataxia, and tremor in conjunction with CSF pleocytosis and brainstem lesions on MR images are pathognomonic for diagnosis of neurologic involvement by enterovirus 71 infection.


Subject(s)
Acute Disease , Brain/diagnostic imaging , Central Nervous System Diseases/etiology , Child , Child, Preschool , Encephalitis/pathology , Enterovirus A, Human/genetics , Enterovirus Infections/drug therapy , Feces/virology , Female , Humans , Immunoglobulins/administration & dosage , Infant , Injections, Intravenous , Leukocytes/cytology , Leukocytosis/cerebrospinal fluid , Magnetic Resonance Imaging , Male , RNA, Viral/genetics , Real-Time Polymerase Chain Reaction , Republic of Korea , Retrospective Studies , Seasons
6.
Article in Korean | WPRIM | ID: wpr-53109

ABSTRACT

BACKGROUND: Definition of possible von Willebrand disease (VWD) included levels of von Willebrand factor antigen (VWF:Ag) or von Willebrand factor ristocetin cofactor activity (VWF:RCo) below 30 U/dL. The purpose of this study was to determine the prevalence of possible VWD in Ulsan, Korea. We also analyzed the influence of demographic factors such as age, gender, and blood group on subject levels of VWF. METHODS: Between March 2011 and September 2011 we prospectively investigated 1,039 subjects (271 children, 768 adults). Blood samples were collected for the determination of VWF:Ag, VWF:RCo, and factor VIII coagulation assay (FVIII:C). A standardized questionnaire was administered to evaluate hemorrhagic symptoms at the time of first examination, using a bleeding score ranging from 0 to 3. RESULTS: Forty five subjects met the criteria for possible VWD, for a prevalence of 4.3%. Subjects of Group O had a significantly lower mean FVIII:C, VWF:Ag, and VWF:RCo value than subjects of group A,B, or AB (P<0.001). CONCLUSION: Our results suggest that the prevalence of VWD may be much higher than previously reported. Efforts to increase the awareness and diagnosis of VWD may help improve identification of patients with bleeding disorders and lead to early, appropriate management with safe and efficacious therapies.


Subject(s)
Child , Demography , Diagnosis , Factor VIII , Hemorrhage , Humans , Korea , Prevalence , Prospective Studies , von Willebrand Diseases , von Willebrand Factor , Surveys and Questionnaires
7.
Article in Korean | WPRIM | ID: wpr-788507

ABSTRACT

BACKGROUND: Definition of possible von Willebrand disease (VWD) included levels of von Willebrand factor antigen (VWF:Ag) or von Willebrand factor ristocetin cofactor activity (VWF:RCo) below 30 U/dL. The purpose of this study was to determine the prevalence of possible VWD in Ulsan, Korea. We also analyzed the influence of demographic factors such as age, gender, and blood group on subject levels of VWF.METHODS: Between March 2011 and September 2011 we prospectively investigated 1,039 subjects (271 children, 768 adults). Blood samples were collected for the determination of VWF:Ag, VWF:RCo, and factor VIII coagulation assay (FVIII:C). A standardized questionnaire was administered to evaluate hemorrhagic symptoms at the time of first examination, using a bleeding score ranging from 0 to 3.RESULTS: Forty five subjects met the criteria for possible VWD, for a prevalence of 4.3%. Subjects of Group O had a significantly lower mean FVIII:C, VWF:Ag, and VWF:RCo value than subjects of group A,B, or AB (P<0.001).CONCLUSION: Our results suggest that the prevalence of VWD may be much higher than previously reported. Efforts to increase the awareness and diagnosis of VWD may help improve identification of patients with bleeding disorders and lead to early, appropriate management with safe and efficacious therapies.


Subject(s)
Child , Demography , Diagnosis , Factor VIII , Hemorrhage , Humans , Korea , Prevalence , Prospective Studies , von Willebrand Diseases , von Willebrand Factor , Surveys and Questionnaires
8.
Article in Korean | WPRIM | ID: wpr-191860

ABSTRACT

Hypereosinophilic syndrome (HES) is defined as peripheral eosinophilia, organ involvement of eosinophils and exclusion of other disorders or dysfunction. HES is subclassified as myeloproliferative variant, T-lymphocytic, overlap, idiopathic, familial and associated type according to the new classification using molecular and immunologic markers. HES presenting with gastrointestinal symptoms is very rare but characterized by peripheral eosinophilia, eosinophilic infiltration of the gastrointestinal tract with other organs such as liver and bone marrow. We report a rare case of idiopathic HES in 18-year-old adolescent who presented with gastrointestinal symptoms including abdominal pain, diarrhea and ascites which resolved rapidly with corticosteroid therapy. HES should be included in the differential diagnosis of abdominal pain and ascites in children and adolescents.


Subject(s)
Abdominal Pain , Adolescent , Ascites , Biomarkers , Bone Marrow , Child , Classification , Diagnosis, Differential , Diarrhea , Eosinophilia , Eosinophils , Gastrointestinal Tract , Humans , Hypereosinophilic Syndrome , Liver
9.
Korean Circulation Journal ; : 100-106, 2012.
Article in English | WPRIM | ID: wpr-45787

ABSTRACT

BACKGROUND AND OBJECTIVES: Thrombospondin-1 (TSP-1) is associated with atherosclerosis in animals with diabetes mellitus (DM). But, no study has investigated the role of TSP-1 in human atherosclerosis. This study investigated the relationship among plasma TSP-1 concentration, DM, and coronary artery disease (CAD). SUBJECTS AND METHODS: The study involved 374 consecutive subjects with suspected CAD, who had undergone coronary angiography to evaluate effort angina. Patients were divided into four groups as follows: DM(-) and CAD(-), DM(-) and CAD(+), DM(+) and CAD(-), and DM (+) and CAD(+). RESULTS: We found that plasma TSP-1 levels were higher in patients with DM(+) and CAD(+) (n=103) than those in other patients (n=271) (p<0.01). A multivariate analysis showed that male gender {odds ratio (OR), 2.728; 95% confidence interval (CI), 1.035-7.187}, high density lipoprotein-cholesterol (OR, 0.925; 95% CI, 0.874-0.980), glycated hemoglobin (OR, 1.373; 95% CI, 1.037-1.817), and plasma TSP-1 (OR, 1.004; 95% CI, 1.000-1.008) levels were independently associated with the presence of CAD in patients with DM. CONCLUSION: Plasma TSP-1 levels were higher in patients with DM(+) and CAD(+) than those in other patients, and plasma TSP-1 levels were independently associated with the presence of CAD in patients with DM. These findings show a possible link between human plasma TSP-1 concentration and CAD in patients with DM.


Subject(s)
Aluminum Hydroxide , Animals , Atherosclerosis , Carbonates , Coronary Angiography , Coronary Artery Disease , Coronary Vessels , Diabetes Mellitus , Hemoglobins , Humans , Male , Multivariate Analysis , Plasma , Thrombospondin 1
10.
Korean Circulation Journal ; : 705-708, 2012.
Article in English | WPRIM | ID: wpr-89215

ABSTRACT

Left ventricular hypertrabeculation/noncompaction (LVHT) is an uncommon type of genetic cardiomyopathy characterized by trabeculations and recesses within the ventricular myocardium. LVHT is associated with diastolic or systolic dysfunction, thromboembolic complications, and arrhythmias, including atrial fibrillation, ventricular arrhythmias, atrioventricular block and Wolff-Parkinson-White syndrome. Herein, we describe a patient who presented with heart failure and wide-complex tachycardia. Echocardiography showed LVHT accompanied with severe mitral regurgitation. The electrophysiologic study revealed a fasciculo-ventricular accessory pathway and atrial flutter (AFL). The AFL was successfully treated with catheter ablation.


Subject(s)
Arrhythmias, Cardiac , Atrial Fibrillation , Atrial Flutter , Atrioventricular Block , Cardiomyopathies , Catheter Ablation , Echocardiography , Heart Failure , Humans , Isolated Noncompaction of the Ventricular Myocardium , Mitral Valve Insufficiency , Myocardium , Pre-Excitation, Mahaim-Type , Tachycardia , Wolff-Parkinson-White Syndrome
11.
Korean Circulation Journal ; : 578-582, 2011.
Article in English | WPRIM | ID: wpr-181356

ABSTRACT

BACKGROUND AND OBJECTIVES: Little evidence is available on the optimal antithrombotic therapy following percutaneous coronary intervention (PCI) in patients with atrial fibrillation (AF). We investigated the outcomes of antithrombotic treatment strategies in AF patients who underwent PCI. SUBJECTS AND METHODS: Three hundred sixty-two patients (68.0% men, mean age: 68.3+/-7.8 years) with AF and who had undergone PCI with stent implantation between 2005 and 2007 were enrolled. The clinical, demographic and procedural characteristics were reviewed and the stroke risk factors as well as antithrombotic regimens were analyzed. RESULTS: The accompanying comorbidities were as follows: hypertension (59.4%), diabetes (37.3%) and congestive heart failure (16.6%). The average number of stroke risk factors was 1.6. At the time of discharge after PCI, warfarin was prescribed for 84 patients (23.2%). Cilostazol was used in addition to dual antiplatelet therapy in 35% of the patients who did not receive warfarin. The mean follow-up period was 615+/-385 days. The incidences of major adverse cardiac events (MACE), stroke and major bleeding were 11.3%, 3.6% and 4.1%, respectively. By Kaplan-Meier survival analysis, warfarin treatment was not associated with a lower risk of MACE (p=0.886), but it was associated with an increased risk of major bleeding (p=0.002). CONCLUSION: Oral anticoagulation therapy after PCI may increase hemorrhagic events in Korean AF patients.


Subject(s)
Angioplasty , Anticoagulants , Atrial Fibrillation , Comorbidity , Follow-Up Studies , Heart Failure , Hemorrhage , Humans , Hypertension , Incidence , Male , Percutaneous Coronary Intervention , Platelet Aggregation Inhibitors , Risk Factors , Stents , Stroke , Tetrazoles , Warfarin
12.
Article in English | WPRIM | ID: wpr-111074

ABSTRACT

Cardiac conduction system impairment is a rare clinical manifestation of Behcet's disease. We report a patient who showed 1st degree atrioventricular block at first presentation, and showed aggravated finding of 3rd degree atrioventricular block on five months later. His cardiac manifestation finally developed to acute severe aortic regurgitation on six months later from his first cardiac manifestation. We observed this rapid progression during 6 months and successfully improved symptom and disease severity of the patient with treatment targeting Behcet's disease.


Subject(s)
Aortic Valve , Aortic Valve Insufficiency , Atrioventricular Block , Humans
13.
Article in English | WPRIM | ID: wpr-161418

ABSTRACT

BACKGROUND AND OBJECTIVES: Placement of drug-eluting stents (DES) can be complicated by stent thrombosis; prophylactic antiplatelet therapy has been used to prevent such events. We evaluated the efficacy of cilostazol with regard to stent thrombosis as adjunctive antiplatelet therapy. SUBJECTS AND METHODS: A total of 1,315 patients (846 males, 469 females) were prospectively enrolled and analyzed for the frequency of stent thrombosis. Patients with known risk factors for stent thrombosis, except diabetes and acute coronary syndrome, were excluded from the study. All patients maintained antiplatelet therapy for at least six months. To evaluate the effects of cilostazol as another option for antiplatelet therapy, triple antiplatelet therapy (aspirin+clopidogrel+cilostazol, n=502) was compared to dual antiplatelet therapy (aspirin+clopidogrel, n=813). Six months after stent placement, all patients received only two antiplatelet drugs: treatment either with cilostazol+aspirin (cilostazol group) or clopidogrel+aspirin (clopidogrel group). There were 1,033 patients (396 in cilostazol group and 637 in clopidogrel group) that maintained antiplatelet therapy for at least 12 months and were included in this study. Stent thrombosis was defined and classified according to the definition reported by the Academic Research Consortium (ARC). RESULTS: defined and classified according to the definition reported by the Academic Research Consortium (ARC). RESULTS: During follow-up (561.7+/-251.4 days), 15 patients (1.14%) developed stent thrombosis between day 1 to day 657. Stent thrombosis occurred in seven patients (1.39%) on triple antiplatelet therapy and four patients (0.49%) on dual antiplatelet therapy (p=NS) within the first six months after stenting. Six months and later, after stent implantation, one patient (0.25%) developed stent thrombosis in the cilostazol group, and three (0.47%) in the clopidogrel group (p=NS). CONCLUSION: During the first six months after DES triple antiplatelet therapy may be more effective than dual antiplatelet therapy for the prevention of stent thrombosis. However, after the first six months, dual antiplatelet treatment, with aspirin and cilostazol, may have a better cost benefit ratio for the prevention of stent thrombosis.


Subject(s)
Acute Coronary Syndrome , Aspirin , Cost-Benefit Analysis , Drug-Eluting Stents , Follow-Up Studies , Humans , Male , Prospective Studies , Risk Factors , Stents , Tetrazoles , Thrombosis , Ticlopidine
14.
Article in Korean | WPRIM | ID: wpr-114323

ABSTRACT

Risperidone is an atypical antipsychotic medication commonly used to treat psychotic illness, such as schizophrenia. It has strong serotonin and dopamine receptor antagonism and antagonist activity at alpha-adrenergic receptors and histamine receptors. An overdose of risperidone can cause tachycardia, hypertension, hypotension, prolonged QT interval, and bradycardia. Risperidone overdose is rare,but life-threatening. Here, we present the rare case of a 33- year-old woman who ingested risperidone overdose for the purposes of suicide, developing hemodynamically unstable bradycardia with trifascicular block, leading to fatality. Lessons from our case report are of urgent consideration for temporary pacemaker insertion, and use of alpha-1 agonist, such as phenylephrine in cases of hemodynamically unstable bradycardia by risperidone overdose. Prompt and appropriate identification and interventions are essential for the successful management of risperidone overdose.


Subject(s)
Bradycardia , Female , Humans , Hypertension , Hypotension , Phenylephrine , Receptors, Adrenergic, alpha , Receptors, Dopamine , Receptors, Histamine , Risperidone , Schizophrenia , Serotonin , Suicide , Tachycardia
15.
Korean Circulation Journal ; : 111-115, 2009.
Article in English | WPRIM | ID: wpr-113698

ABSTRACT

BACKGROUND AND OBJECTIVES: Percutaneous coronary intervention for chronic total occlusion lesions is technically difficult despite equipment advances. Changes in electrocardiographic patterns, such as Q and T waves, during chronic total occlusion can provide information about procedural success and myocardial viability. In this study, we investigated clinical, electrocardiographic, and procedural characteristics of chronic total occlusions. SUBJECTS AND METHODS: Patients (2,635) who underwent coronary angiography between January 2006 and July 2007 at six Catholic University Hospitals were identified using a dedicated Internet database. RESULTS: A total of 195 patients had total occlusion lesions (7.4%). Percutaneous coronary interventions were attempted in 136 total occlusion lesions (66.0%) in 134 patients. Successful recanalization with stent implantation was accomplished in 89 lesions, with a procedural success rate of 66.4%. One procedure-related death occurred because of no-reflow phenomenon. After excluding 8 patients with bundle branch block, Q and T wave inversions were observed in 60 (32.1%) and 78 patients (41.7%), respectively. The presence of Q waves was associated with severe angina, decreased left ventricular ejection fraction, regional wall motion abnormality, and T wave inversion, but was not related to procedural success. CONCLUSION: Percutaneous coronary intervention is a safe and useful procedure for the revascularization of coronary chronic total occlusion lesions. The procedural success rate was not related to the presence of pathologic Q waves, which were associated with severe angina and decreased left ventricular function.


Subject(s)
Angioplasty , Bundle-Branch Block , Coronary Angiography , Coronary Occlusion , Electrocardiography , Hospitals, University , Humans , Internet , No-Reflow Phenomenon , Percutaneous Coronary Intervention , Stents , Stroke Volume , Ventricular Function, Left
16.
Korean Circulation Journal ; : 275-279, 2009.
Article in English | WPRIM | ID: wpr-97243

ABSTRACT

BACKGROUND AND OBJECTIVES: The treadmill exercise test (TMT) is used as a first-line test for diagnosing coronary artery disease (CAD). However, the findings of a TMT can be inconclusive, such as incomplete or equivocal results. Aortic valve sclerosis (AVS) is known to be a good predictor of CAD. We determined the usefulness of assessing AVS on 2-dimensional (2D) echocardiography for making the diagnosis of CAD in patients with inconclusive results on a TMT. SUBJECTS AND METHODS: This prospective study involved 165 consecutive patients who underwent a TMT that resulted in inconclusive findings, 2D echocardiography to detect AVS, and coronary angiography to detect CAD. Following echocardiography, AVS was classified as none, mild, or severe. CAD was defined as > or =70% narrowing of the luminal diameter on coronary angiography. RESULTS: CAD was more common in patients with AVS than in patients without AVS (75% vs. 47%, respectively, p<0.01). Multiple logistic regression analysis showed that AVS was the only independent predictor of CAD {odds ratio=8.576; 95% confidence interval (CI), 3.739-19.672}. The sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of the presence of AVS for predicting CAD in a patient with an inconclusive TMT were 62%, 67%, 64%, 75%, and 53%, respectively. During a 1-year clinical follow-up, patients with and without AVS were similar in terms of event-free survival rates. CONCLUSION: If the results of TMT for patients with chest pain on exertion are inconclusive, the presence of AVS on echocardiography is a good predictor of CAD.


Subject(s)
Aortic Valve , Chest Pain , Coronary Angiography , Coronary Artery Disease , Coronary Vessels , Disease-Free Survival , Echocardiography , Exercise Test , Follow-Up Studies , Humans , Logistic Models , Phenobarbital , Prospective Studies , Sclerosis , Sensitivity and Specificity
17.
Korean Circulation Journal ; : 389-391, 2009.
Article in English | WPRIM | ID: wpr-151430

ABSTRACT

Posteroseptal accessory pathways are often associated with coronary sinus diverticula. These diverticula contain myocardial coats which serve as a bypass tract. We report a 54-year-old woman who underwent radiofrequency (RF) catheter ablation for Wolff-Parkinson-White (WPW) syndrome. The surface electrocardiography (ECG) demonstrated pre-excitation, indicating a posteroseptal accessory pathway. A catheter ablation via a transaortic approach failed to ablate the accessory pathway. Coronary sinus venography revealed the presence of a diverticulum near the ostium. An electrogram in the neck of the diverticulum showed the coronary sinus myocardial extension potential, which was successfully ablated by delivery of RF energy.


Subject(s)
Catheter Ablation , Coronary Sinus , Diverticulum , Electrocardiography , Female , Humans , Middle Aged , Neck , Phlebography , Wolff-Parkinson-White Syndrome
18.
Article in English | WPRIM | ID: wpr-150689

ABSTRACT

BACKGROUND/AIMS: Patients with diabetes are prone to coronary artery disease (CAD); however, the majority of diabetic patients show normal coronary arteries. We examined differences in the clinical aspects of diabetic patients with insignificant and with significant stenosis of the coronary artery. METHODS: A total of 418 consecutive diabetic patients with stable angina who had undergone coronary angiography from January 2004 to March 2007 were included in this study. Patients were subdivided into control and CAD groups and then clinical characteristics and CAD-associated factors were evaluated. RESULTS: A total of 92 (22%) patients were assigned to the control group and 326 (78%) patients were assigned to the CAD group. Using univariate regression analysis, we found that patients with CAD were significantly older (control vs. CAD; 59+/-21 vs. 64.7+/-33.7, years, p<0.001), had a longer duration of diabetes (8.2+/-21.8 vs. 10.2+/-29.8, years, p=0.027), higher titers of high sensitivity C-reactive protein (hsCRP; 0.3+/-6.79 vs. 0.9+/-12.6, mg/dL, p=0.015), and increased hemoglobin A1c (HbA1c) levels (7.1+/-3.8 vs. 7.5+/-4.8, %, p=0.007) compared to control patients. Multivariate regression analysis showed that only differences in age, hsCRP, and HbA1c were statistically significant. When patients were subdivided into groups based on hsCRP levels (208 patients in the low group [49.8%], 210 patients in the high group [50.2%]), we found that patients with higher hsCRP levels showed more frequent multivessel disease. CONCLUSIONS: In diabetic patients, age, hsCRP, and HbA1c were associated with stable CAD. Among these factors, hsCRP levels were significantly correlated with multivessel involvement in diabetic CAD. Therefore, high hsCRP levels may be a strong predictor for atherosclerotic progression of the coronary arteries in diabetic patients, suggesting that regular screening tests should be performed.


Subject(s)
Adult , Aged , Biomarkers , C-Reactive Protein/analysis , Coronary Artery Disease/blood , Diabetes Complications/blood , Female , Glycated Hemoglobin A/analysis , Humans , Logistic Models , Male , Middle Aged
19.
Korean Circulation Journal ; : 258-260, 2009.
Article in English | WPRIM | ID: wpr-221150

ABSTRACT

Dysphagia aortica is difficulty in swallowing caused by extrinsic compression of the esophagus due to an ectatic, tortuous, or aneurysmatic atherosclerotic thoracic aorta. This condition is very uncommon, and it is usually associated with old age, women with short stature, hypertension, and kyphosis. We report herein a case involving a patient with dysphagia who had an aortic aneurysm.


Subject(s)
Aorta, Thoracic , Aortic Aneurysm , Deglutition , Deglutition Disorders , Esophagus , Female , Humans , Hypertension , Kyphosis
20.
Article in English | WPRIM | ID: wpr-181748

ABSTRACT

BACKGROUND AND OBJECTIVES: The presence of elevated troponin after percutaneous coronary intervention (PCI) is considered to reflect irreversible myocardial injury. However, its prognostic value remains unclear. The purpose of this study was to investigate the incidence, risk factors, and clinical outcomes of troponin I (TnI) elevation after the implantation of drug-eluting stent (DES). SUBJECTS AND METHODS: We performed a retrospective analysis of 335 patients who had undergone PCI with DES. Patients who had acute coronary syndrome with elevated TnI levels before PCI were excluded. TnI levels were measured 6 and 24 hours after PCI. RESULTS: Baseline clinical characteristics were similar in the elevated TnI and normal TnI groups. Elevated postprocedural TnI (>1.5 ng/mL) occurred in 52 patients (15.5%). Univariate analysis revealed that the clinically significant variables were multi-vessel disease (p<0.001), multiple stent implantation (p=0.003), total stent length (p=0.001), side-branch occlusion (p<0.001), and bifurcation lesion (p=0.003). Multivariate analysis indicated that the independent predictors of elevated TnI after DES implantation were multi-vessel disease (p=0.019), side-branch occlusion (p=0.001), and bifurcation (p=0.011). There were no significant differences in major adverse cardiovascular events between the elevated TnI and normal TnI groups (p=0.461). CONCLUSION: Multi-vessel disease, side-branch occlusion, and bifurcation were independent predictors of elevated TnI following DES implantation. The elevation of TnI after successful PCI with DES was not associated with worse 400-day clinical outcomes.


Subject(s)
Acute Coronary Syndrome , Angioplasty, Balloon, Coronary , Coronary Stenosis , Drug-Eluting Stents , Humans , Incidence , Multivariate Analysis , Percutaneous Coronary Intervention , Retrospective Studies , Risk Factors , Stents , Troponin , Troponin I
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