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Background@#Data regarding the association between preexisting cardiovascular risk factors (CVRFs) and cardiovascular diseases (CVDs) and the outcomes of patients requiring hospitalization for coronavirus disease 2019 (COVID-19) are limited. Therefore, the aim of this study was to investigate the impact of preexisting CVRFs or CVDs on the outcomes of patients with COVID-19 hospitalized in a Korean healthcare system. @*Methods@#Patients with COVID-19 admitted to 10 hospitals in Daegu Metropolitan City, Korea, were examined. All sequentially hospitalized patients between February 15, 2020, and April 24, 2020, were enrolled in this study. All patients were confirmed to have COVID-19 based on the positive results on the polymerase chain reaction testing of nasopharyngeal samples. Clinical outcomes during hospitalization, such as requiring intensive care and invasive mechanical ventilation (MV) and death, were evaluated. Moreover, data on baseline comorbidities such as a history of diabetes, hypertension, dyslipidemia, current smoking, heart failure, coronary artery disease, cerebrovascular accidents, and other chronic cardiac diseases were obtained. @*Results@#Of all the patients enrolled, 954 (42.0%) had preexisting CVRFs or CVDs. Among the CVRFs, the most common were hypertension (28.8%) and diabetes mellitus (17.0%). The prevalence rates of preexisting CVRFs or CVDs increased with age (P < 0.001). The number of patients requiring intensive care (P < 0.001) and invasive MV (P < 0.001) increased with age.The in-hospital death rate increased with age (P < 0.001). Patients requiring intensive care (5.3% vs. 1.6%; P < 0.001) and invasive MV (4.3% vs. 1.7%; P < 0.001) were significantly greater in patients with preexisting CVRFs or CVDs. In-hospital mortality (12.9% vs. 3.1%; P < 0.001) was significantly higher in patients with preexisting CVRFs or CVDs. Among the CVRFs, diabetes mellitus and hypertension were associated with increased requirement of intensive care and invasive MV and in-hospital death. Among the known CVDs, coronary artery disease and congestive heart failure were associated with invasive MV and in-hospital death. In multivariate analysis, preexisting CVRFs or CVDs (odds ratio [OR], 1.79; 95% confidence interval [CI], 1.07–3.01; P = 0.027) were independent predictors of in-hospital death adjusting for confounding variables. Among individual preexisting CVRF or CVD components, diabetes mellitus (OR, 2.43; 95% CI, 1.51–3.90; P < 0.001) and congestive heart failure (OR, 2.43; 95% CI, 1.06–5.87; P = 0.049) were independent predictors of in-hospital death. @*Conclusion@#Based on the findings of this study, the patients with confirmed COVID-19 with preexisting CVRFs or CVDs had worse clinical outcomes. Caution is required in dealing with these patients at triage.after
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Heterotopic ossification of the xiphoid process is extremely rare, with only three cases previously reported. However, the surgical pathology for postoperative elongation of the xiphoid process after abdominal surgery has not yet been reported. We report a case of the postoperative elongation of the xiphoid process, 8 years after abdominal surgery for traumatic hemoperitoneum in a 53-year-old man. The patient underwent surgical excision of the elongated mass of the xiphoid process. Histopathology revealed multiple exostoses. Heterotopic ossification can occur after surgical trauma to soft or bone tissue. Surgical excision with primary closure is the treatment of choice for symptomatic heterotopic ossification.
Sujets)
Humains , Adulte d'âge moyen , Os et tissu osseux , Exostoses , Maladie des exostoses multiples , Hémopéritoine , Ossification hétérotopique , Anatomopathologie chirurgicale , Processus xiphoïdeRésumé
BACKGROUND AND OBJECTIVES: Although increasing evidence has indicated that radial access is a beneficial technique, few studies have focused on Korean subjects. The aim of this study was to evaluate current practice of coronary angiography (CAG) and percutaneous coronary intervention (PCI) using radial access in South Korea. SUBJECTS AND METHODS: A total of 6338 subjects were analyzed from Korean Transradial Intervention prospective registry that was conducted at 20 centers in Korea. After evaluating the initial access, subjects intended for radial access were assessed for their baseline, procedure-related, and complication data. Subjects were categorized into three groups: group of overall subjects (n=5554); group of subjects who underwent PCI (n=1780); and group of subjects who underwent primary percutaneous coronary intervention (PPCI) (n=167). RESULTS: The rate of radial artery as an initial access and the rate of access site crossover was 87.6% and 4.4%, respectively, in overall subjects. Those rates were 82.4% and 8.1%, respectively, in subjects who underwent PCI, and 60.1% and 4.8%, respectively, in subjects who underwent PPCI. For subjects who underwent CAG, a 6-F introducer sheath and a 5-F angiographic catheter was the most commonly used. During PCI, a 6-F introducer sheath (90.6%) and a 6-F guiding catheter were standardly used. CONCLUSION: The large prospective registry allowed us to present the current practice of CAG and PCI using radial access. These data provides evidence to achieve consensus on radial access in CAG and PCI in the Korean population.
Sujets)
Cathéters , Consensus , Coronarographie , Corée , Intervention coronarienne percutanée , Études prospectives , Artère radiale , EnregistrementsRésumé
BACKGROUND AND OBJECTIVES: There is little information about the relationship between the Doppler flow of the ophthalmic artery (OA) and carotid and coronary atherosclerosis. The aim of the investigation was to assess the clinical usefulness of the Doppler flow of the OA to estimate the severity of carotid and coronary atherosclerosis. SUBJECTS AND METHODS: The study was a retrospective analysis of the findings in 140 patients (mean age: 60 years, male: 64%) who underwent coronary angiography (CA) for the evaluation of typical angina between July 2010 and October 2011 in our single center. The severity of coronary artery stenosis was based on the Gensini score (GS). Significant coronary artery disease (CAD) was defined as the obstruction of over 75% of the major coronary arteries confirmed with CA. The pulsed Doppler flow of the OA and carotid ultrasound were performed before CA. RESULTS: The mean systolic velocity/mean diastolic velocity (MSV/MDV), pulsatile index and resistance index in the Doppler flow of the OA were identified as significant and independent correlations with carotid intima-media thickness, and MSV/MDV was identified to have a significant and independent correlation with the GS. MSV/MDV >2.1 was the independent predictor for significant CAD {odds ratio (OR) 3.8, 95% confidence interval (CI) 1.5-9.7, p=0.005} and carotid plaque (OR 2.8, 95% CI 1.1-7.0, p=0.028), after adjustment for CAD-associated factors. CONCLUSION: The Doppler flow of the OA might be a useful predictor of the severity of carotid and coronary atherosclerosis.
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Humains , Mâle , Athérosclérose , Artères carotides , Épaisseur intima-média carotidienne , Coronarographie , Maladie des artères coronaires , Sténose coronarienne , Vaisseaux coronaires , Artère ophtalmique , Études rétrospectives , ÉchographieRésumé
BACKGROUND/AIMS: Combination single-pill therapy can improve cost-effectiveness in a typical medical therapy. However, there is a little evidence about the efficacy and tolerability of combination single-pill antiplatelet therapy after percutaneous coronary intervention (PCI) with drug-eluting stents (DES). METHODS: From June to November 2012, in total, 142 patients who met the following criteria were enrolled: at least 18 years old; successful PCI with DES at least 3 months earlier; and regular medication of aspirin and clopidogrel with no side effects. After VerifyNow P2Y12 and aspirin assays, the combination single pill of aspirin and clopidogrel was given and laboratory tests were repeated 6 weeks later. RESULTS: At baseline, the incidence of aspirin resistance, defined as aspirin reaction unit (ARU) > or = 550, was 9.2%, that of clopidogrel resistance, defined as P2Y12 reaction unit (PRU) > or = 230, was 46.5%, and that of percent inhibition of PRU < 20% was 32.4%. At follow-up, the incidence of resistance by ARU value was 7.0%, 50.0% by PRU value, and 35.9% by percentage inhibition of PRU, respectively. The mean values of ARU (431.5 +/- 63.6 vs. 439.8 +/- 55.2; p = 0.216) and PRU (227.5 +/- 71.4 vs. 223.3 +/- 76.0; p = 0.350) were not significantly different before versus after antiplatelet-combination single-pill therapy. Five adverse events (3.5%) were observed during the study period. CONCLUSIONS: Combination single-pill antiplatelet therapy, which may reduce daily pill burden for patients after PCI with DES, demonstrated similar efficacy to separate dual-pill antiplatelet therapy.
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Sujet âgé , Femelle , Humains , Mâle , Adulte d'âge moyen , Antihelminthiques antiplathelminthes/administration et posologie , Acide acétylsalicylique/administration et posologie , Association médicamenteuse , Résistance aux substances , Endoprothèses à élution de substances , Analyse en intention de traitement , Ischémie myocardique/sang , Intervention coronarienne percutanée/effets indésirables , Tests fonctionnels plaquettaires , Études prospectives , Comprimés , Ticlopidine/administration et posologie , Facteurs temps , Résultat thérapeutiqueRésumé
Rectus sheath hematoma, caused by rupture of epigastric vessel or muscle tear, is most frequently encountered in association with anticoagulation therapy, trauma, operation, and hematologic disorder. It rarely occurs spontaneously. Rectus sheath hematoma related to subcutaneous injection of insulin is very rare. We report a case of percutaneous catheterbased coil embolization for treatment of rectus sheath hematoma caused by subcutaneous injection of insulin on abdomen during anticoagulation and antiplatelet therapy in an 83-year-old thin woman with diabetes.
Sujets)
Sujet âgé de 80 ans ou plus , Femelle , Humains , Abdomen , Embolisation thérapeutique , Artères épigastriques , Hématome , Injections sous-cutanées , Insuline , Muscle droit de l'abdomen , RuptureRésumé
Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital anomaly associated with very high mortality during infancy. We report a 35-year-old female patient with ALCAPA initially visualized by echocardiography. She visited outpatient department presenting with intermittent chest discomfort for 3 weeks. Transthoracic echocardiography showed left coronary artery arising from main pulmonary artery and abundant septal color flow Doppler signals. Transesophageal echocardiography clearly revealed markedly dilated and tortuous right coronary artery showing windsock appearance. Multidetector computed tomography and coronary angiography enabled visualization of anomalous left coronary artery originating from left side of main pulmonary trunk. After treadmill exercise test which showed ST-segment depression presenting inducible myocardial ischemia, patient underwent direct re-implantation of the anomalous coronary artery into the aorta without any complication.
Sujets)
Femelle , Humains , Aorte , Coronarographie , Anomalies congénitales des vaisseaux coronaires , Vaisseaux coronaires , Dépression , Échocardiographie , Échocardiographie transoesophagienne , Épreuve d'effort , Tomodensitométrie multidétecteurs , Ischémie myocardique , Patients en consultation externe , Artère pulmonaire , ThoraxRésumé
Right sided aortic arch is an uncommon congenital anomaly. It can be classified into three types, depending on the left aortic arch's degenerating pattern and the branching pattern of the great vessels. It can be associated with major congenital heart disease, depending on the type of right sided aortic arch. We report a case of an 18-years-old female who has right sided aortic arch with atrial septal defect (ASD). In our case, the patient had a right sided aortic arch and aberrant left subclavian artery, also she had ASD (ostium secundum) and moderate tricuspid regurgitation with pulmonary hypertension. The patient was successfully performed patch closure of ASD and tricuspid valve annuloplasty via midline sternotomy. The patient had uneventful postoperative course.
Sujets)
Femelle , Humains , Anévrysme , Aorte thoracique , Malformations cardiovasculaires , Troubles de la déglutition , Cardiopathies , Communications interauriculaires , Hypertension pulmonaire , Sternotomie , Artère subclavière , Valve atrioventriculaire droite , Insuffisance tricuspideRésumé
We report a patient of left atrial huge myxoma presenting with severe pulmonary hypertension in adolescents. A patient was a 14-year-old boy presented with sudden onset dyspnea. Transthoracic echocardiographic study revealed the presence of a nodular, 4.34 x 8.11 cm sized, mobile, hyperechoic mass in the left atrium and severe pulmonary hypertension with tricuspid insufficiency. After surgical therapy, tricuspid regurgitation and pulmonary hypertension was decreased and the patient was stabilized and had an uneventful clinical course.
Sujets)
Adolescent , Humains , Dyspnée , Atrium du coeur , Hypertension pulmonaire , Myxome , Insuffisance tricuspideRésumé
BACKGROUND AND OBJECTIVES: The plasma concentration of N-terminal pro-brain natriuretic peptide (NT-pro-BNP) is a st-rong prognostic indicator for patients with heart failure (HF) across all stages of the condition. Several clinical trials have de-monstrated convincingly that neurohormonal modulation on the renin angiotensin system (RAS) decreases plasma NT-pro-BNP level and results in favorable outcomes. But there are still limited comparative data on the neuro-hormonal modulatory effects of two RAS inhibitors: angiotensin converting enzyme inhibitor and angiotensin receptor blocker. SUBJECTS AND METHODS: This study was a prospective, multi-center, randomized, open-label, controlled, and non-inferiority study involving 445 patients with left ventricular ejection fraction (LVEF) less than 45%. Patients were assigned to receive either valsartan (target dose of 160 mg bid) or enalapril (target dose of 10 mg bid) for 12 months. We compared plasma NT-pro-BNP, high sensitive C-reactive protein (hs-CRP) level and echocardiographic parameters before and after treatment with valsartan or enalapril. RESULTS: The NT-pro-BNP and hs-CRP levels were significantly decreased after 12 months of treatment with valsartan and enalapril. The percentage change was similar between both groups. LVEF improved and left ventricular internal dimensions were decreased in both groups, and there were no significant differences between two groups. CONCLUSION: Valsartan is as effective on improving plasma NT-pro-BNP level as enalapril in patients with stable chronic HF.
Sujets)
Humains , Inhibiteurs de l'enzyme de conversion de l'angiotensine , Angiotensines , Protéine C-réactive , Énalapril , Coeur , Défaillance cardiaque , Peptide natriurétique cérébral , Peptidyl-Dipeptidase A , Plasma sanguin , Études prospectives , Système rénine-angiotensine , Débit systolique , Tétrazoles , Valine , ValsartanRésumé
BACKGROUND AND OBJECTIVES: The plasma concentration of N-terminal pro-brain natriuretic peptide (NT-pro-BNP) is a st-rong prognostic indicator for patients with heart failure (HF) across all stages of the condition. Several clinical trials have de-monstrated convincingly that neurohormonal modulation on the renin angiotensin system (RAS) decreases plasma NT-pro-BNP level and results in favorable outcomes. But there are still limited comparative data on the neuro-hormonal modulatory effects of two RAS inhibitors: angiotensin converting enzyme inhibitor and angiotensin receptor blocker. SUBJECTS AND METHODS: This study was a prospective, multi-center, randomized, open-label, controlled, and non-inferiority study involving 445 patients with left ventricular ejection fraction (LVEF) less than 45%. Patients were assigned to receive either valsartan (target dose of 160 mg bid) or enalapril (target dose of 10 mg bid) for 12 months. We compared plasma NT-pro-BNP, high sensitive C-reactive protein (hs-CRP) level and echocardiographic parameters before and after treatment with valsartan or enalapril. RESULTS: The NT-pro-BNP and hs-CRP levels were significantly decreased after 12 months of treatment with valsartan and enalapril. The percentage change was similar between both groups. LVEF improved and left ventricular internal dimensions were decreased in both groups, and there were no significant differences between two groups. CONCLUSION: Valsartan is as effective on improving plasma NT-pro-BNP level as enalapril in patients with stable chronic HF.
Sujets)
Humains , Inhibiteurs de l'enzyme de conversion de l'angiotensine , Angiotensines , Protéine C-réactive , Énalapril , Coeur , Défaillance cardiaque , Peptide natriurétique cérébral , Peptidyl-Dipeptidase A , Plasma sanguin , Études prospectives , Système rénine-angiotensine , Débit systolique , Tétrazoles , Valine , ValsartanRésumé
A right-sided aortic arch (RAA) is a rare congenital anomaly, and Stanford type B dissection aneurysms involving this anomaly is also uncommon. Surgical approaches to dealing with an RAA are complicated by the unusual anatomical features of the condition. Here we report the case of a 47-year-old male who had a type B dissecting aneurysm involving an RAA with Kommerell's diverticulum. Graft replacement was successfully performed with an uneventful postoperative course.
Sujets)
Humains , Mâle , Adulte d'âge moyen , /imagerie diagnostique , Aorte thoracique/malformations , Anévrysme de l'aorte thoracique/imagerie diagnostique , Implantation de prothèses vasculaires/méthodes , Diverticule/imagerie diagnostique , TomodensitométrieRésumé
BACKGROUND AND OBJECTIVES: Arterial stiffness is a precursor to premature cardiovascular disease. The augmentation index (AI) and pulse pressure (PP) are cardiovascular risk factors. The aim of this study was to define the diagnostic values of the AI and PP from the peripheral arterial and central aortic waveforms in healthy subjects. SUBJECTS AND METHODS: We recruited 522 consecutive subjects (mean age 46.3+/-9.6 years, 290 males) who came to our facility for a comprehensive medical testing. We measured the body mass index (BMI), blood pressure, peripheral and central PP, and a pulse wave analysis that included the central and peripheral AI. RESULTS: The peripheral and central AIs in the female subjects were significantly higher than that in the male subjects (p<0.001). The peripheral and central PPs in the subjects with hyperlipidemia were significantly higher than subjects with normal lipid profiles (p<0.001). The peripheral and central PPs and peripheral and central AIs significantly increased with age. CONCLUSION: Pending validation in prospective outcome-based studies, a peripheral PP of 70 mmHg, central PP of 50 mmHg, peripheral AI of 100%, and central AI of 40% may be preliminary values in adult subjects.
Sujets)
Adulte , Femelle , Humains , Mâle , Artères , Pression sanguine , Indice de masse corporelle , Maladies cardiovasculaires , Hyperlipidémies , Porphyrines , Études prospectives , Analyse de l'onde de pouls , Valeurs de référence , Facteurs de risque , Rigidité vasculaireRésumé
BACKGROUND AND OBJECTIVES: Non-invasive detection and characterization of plaque composition may constitute an important step in risk stratification and monitoring of the progression of coronary atherosclerosis. Multislice computed tomography (MSCT) allows for accurate, non-invasive detection and characterization of atherosclerotic plaques, as well as determination of coronary artery stenosis. The aim of this study was to determine the usefulness of MSCT for characterizing non-calcified coronary plaques previously classified by intravascular ultrasound (IVUS). SUBJECTS AND METHODS: Seventy-one plaques were evaluated in 42 patients undergoing MSCT and IVUS. Coronary plaques were classified as hypoechoic or hyperechoic based on IVUS echogenicity. On MSCT, CT attenuation was measured using circular regions of interest (ROI) and represented as Hounsfield units (HU). RESULTS: MSCT attenuation in hypoechoic plaques was significantly lower than it was in hyperechoic plaques (52.9+/-24.6 HU vs. 98.6+/-34.9 HU, respectively, p<0.001). When comparing CT attenuation between hypoechoic and hyperechoic plaques, 60.2 HU was the cut-off value for differentiating between the two, with a 90.7% sensitivity and a 78.6% specificity. CONCLUSION: MSCT might be a useful tool for non-invasively evaluating the characteristics of coronary artery plaques.
Sujets)
Humains , Athérosclérose , Maladie des artères coronaires , Sténose coronarienne , Vaisseaux coronaires , Tomodensitométrie multidétecteurs , Plaque d'athérosclérose , Sensibilité et spécificité , TomodensitométrieRésumé
Spontaneous intracerebral hemorrhage is very rare in patients with neurofibromatosis type 1. A 30-year-old woman was referred to our hospital for evaluation of headaches, nausea, and vomiting. She was diagnosed with neurofibromatosis type 1 and a spontaneous intracerebral hemorrhage. She was treated with conservative management, including antihypertensive medications for 32 months. However, because of sustained hypertension, we performed screening tests for a pheochromocytoma. The 24 hr urine VMA and urine metanephrines were elevated. Abdominal CT showed a right adrenal mass, 7.5 x 5.8 cm in size.. After a successful resection of the tumor, the hypertension resolved without medication for > 1 year. This case illustrates that delayed diagnosis and treatment of pheochromocytoma can cause serious complications from hypertension, such as cerebrovascular hemorrhage. Thus, in patients with neurofibromatosis and hypertension, screening for pheochromocytoma is important for the early detection of an adrenal tumor.
Sujets)
Adulte , Femelle , Humains , Hémorragie cérébrale , Retard de diagnostic , Céphalée , Hémorragie , Hypertension artérielle , Dépistage de masse , Nausée , Neurofibromatoses , Neurofibromatose de type 1 , Phéochromocytome , VomissementRésumé
BACKGROUND AND OBJECTIVES: The aims of this study were to assess the long term overall survival of patients after an acute myocardial infarction (AMI), and to determine the association of survival with the occurrence of ventricular arrhythmia, as recorded by Holter electrocardiography (ECG) and signal-averaged electrocardiography (SAECG). SUBJECTS AND METHODS: One hundred fifty two patients with an AMI were enrolled between January 2000 and August 2006. SAECG and Holter ECG were performed before hospital discharge (at range of 2-10 day). The grading system of Lown was used to evaluate the ventricular premature beats on Holter ECG. Three groups of patients were identified based on the seriousness of the ventricular arrhythmia, as identified by the Holter ECG: Lown grade 0, Lown grades 1, 2 and Lown grades 3, 4, 5. SAECG was performed with a high pass frequency of 25 Hz and 40 Hz. The presence of late potentials (LPs) recorded on SAECG was evaluated. The predictors for survival were assessed using Cox's proportional hazard model and Kaplan-Meier analysis. RESULTS: The mean duration of follow-up was 45.8+/-25.5 months. Twenty four patients (15.8%) died during follow-up. The multivariate predictors of all cause death included age [hazard ratio (HR)=1.25, 95% confidence interval (CI)=1.08-1.47, p=0.003] and Lown grades 3, 4 and 5 (HR=19.17, 95% CI=1.25-290.80, p=0.034). Survival analysis did not show a significant relationship between LPs and overall patient survival. The only predictors for overall mortality were age and the Lown grade. CONCLUSION: SAECG did not predict mortality for the patient with AMI. The ventricular arrhythmias recorded by conventional Holter before hospital discharge may be a useful noninvasive prognostic test after an AMI.
Sujets)
Humains , Troubles du rythme cardiaque , Extrasystoles , Électrocardiographie , Électrocardiographie ambulatoire , Études de suivi , Estimation de Kaplan-Meier , Infarctus du myocarde , Pronostic , Modèles des risques proportionnelsRésumé
BACKGROUND AND OBJECTIVES: Hyperuricemia is known to be a risk factor for atherosclerosis, as is gender. The variables related to metabolic syndrome (MS), as well as other cardiovascular risk factors such as serum uric acid (SUA), differ according to gender. The aim of this study was to evaluate the relationship between SUA and the variables of MS according to gender. SUBJECTS AND METHODS: We randomly recruited 675 subjects (373 men and 302 women), who underwent health screening. The subjects were divided into four groups according to SUA quartiles. We compared each quartile of the SUA with the incidence of MS. The variables included body mass index (BMI), hypertension, fasting blood glucose (FBS), high-density lipoprotein (HDL) cholesterol, triglyceride (TG), and the MS score. RESULTS: The incidence of MS in men was significantly increased compared to women, and the incidence of MS was increased according to the SUA values in women. The MS scores tended to increase according to the SUA values in both genders. The incidence of high BMI, high blood pressure, and high TG were correlated with the SUA values in both genders. However, HDL-cholesterol was correlated with MS scores in women, and fasting glucose was not correlated with MS in either gender. CONCLUSION: The variables of the MS might be independently associated with SUA values in both genders. In addition, the incidence of MS in women might be significantly increased according to the SUA values. However, large scale follow-up studies will be required to confirm these possibilities.
Sujets)
Femelle , Humains , Mâle , Athérosclérose , Glycémie , Indice de masse corporelle , Cholestérol , Jeûne , Glucose , Hypertension artérielle , Hyperuricémie , Incidence , Lipoprotéines , Dépistage de masse , Facteurs de risque , Acide uriqueRésumé
Acute massive pulmonary thromboembolism (PTE) is a life threatening medical condition. Therefore, prompt diagnosis and rapid recovery of the pulmonary flow is essential for decreasing the associated morbidity and mortality. We report here on a case of a 68-year old woman for whom we attempted percutaneous catheter thrombectomy in the treatment of an acute massive PTE.
Sujets)
Femelle , Humains , Cathéters , Embolie pulmonaire , ThrombectomieRésumé
An anomalous origin for the coronary artery is a rare congenital condition with an incidence of about 0.17% based on autopsy cases. A 53-year-old man suffering from exertional angina for one month underwent coronary angiography. The left circumflex coronary artery (LCX) was found to originate from the right sinus of Valsalva. Multidetector computed tomography revealed that the LCX coursed posterior to the aorta and followed a normal course after it entered the left anterior atrioventricular groove.
Sujets)
Humains , Adulte d'âge moyen , Aorte , Autopsie , Coronarographie , Anomalies congénitales des vaisseaux coronaires , Vaisseaux coronaires , Incidence , Tomodensitométrie multidétecteurs , Sinus de l'aorte , TomodensitométrieRésumé
BACKGROUND AND OBJECTIVES: Arterial stiffness assessed non-invasively with the aortic pulse wave velocity (PWV) has been associated with atherosclerosis in the coronary arteries and also cardiovascular mortality. The aim of this study was to determine whether arterial stiffness may predict the severity of coronary artery disease (CAD). SUBJECTS AND METHODS: We enrolled 106 consecutive, symptomatic patients (males: 71 (67%), mean age: 57.0+/-10.5 years) who underwent coronary angiography. The extent of the CAD was defined by single or multiple vessel disease according to the number of coronary vessels with a > or = 50% narrowing, the lesion type according to the AHA/ACC guidelines, and a modified stenosis scoring system. Arterial stiffness was characterized by measurement of the carotid-radial PWV. In addition, such cardiovascular risk factors as the body mass index, hypertension, smoking, LDL-and HDL-cholesterol, ejection fraction (EF), left ventricle mass index (LVMI), pulse pressure, plasma homocysteine and C-reactive protein (CRP) were evaluated. RESULTS: The carotid-radial PWV in multiple vessel CAD was faster than in single vessel CAD and the normal arteries (10.33+/-1.46 vs. 8.76+/-1.65 m/sec, respectively, p<0.001). On the univariate analysis, the extent of the CAD, as expressed as a modified stenosis score, was associated with the total cholesterol, LDL-cholesterol, the EF and the PWV. However, on the multivariate analysis, the extent of CAD was associated with the carotid-radial PWV (p<0.001). CONCLUSION: Arterial stiffness identified by carotidradial PWV may predict the severity of the CAD after adjusting for other cardiovascular risk factors.