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Background@#Clonal hematopoiesis of indeterminate potential (CHIP), which is defined as the presence of blood cells originating from somatically mutated hematopoietic stem cells, is common among the elderly and is associated with an increased risk of hematologic malignancies. We investigated the clinical, mutational, and transcriptomic characteristics in elderly Korean individuals with CHIP mutations. @*Methods@#We investigated CHIP in 90 elderly individuals aged ≥60 years with normal complete blood counts at a tertiary-care hospital in Korea between June 2021 and February 2022. Clinical and laboratory data were prospectively obtained. Targeted next-generation sequencing of 49 myeloid malignancy driver genes and massively parallel RNA sequencing were performed to explore the molecular spectrum and transcriptomic characteristics of CHIP mutations. @*Results@#We detected 51 mutations in 10 genes in 37 (41%) of the study individuals. CHIP prevalence increased with age. CHIP mutations were observed with high prevalence in DNMT3A (26 individuals) and TET2 (eight individuals) and were also found in various other genes, including KDM6A, SMC3, TP53, BRAF, PPM1D, SRSF2, STAG1, and ZRSR2. Baseline characteristics, including age, confounding diseases, and blood cell parameters, showed no significant differences. Using mRNA sequencing, we characterized the altered gene expression profile, implicating neutrophil degranulation and innate immune system dysregulation. @*Conclusions@#Somatic CHIP driver mutations are common among the elderly in Korea and are detected in various genes, including DNMT3A and TET2. Our study highlights that chronic dysregulation of innate immune signaling is associated with the pathogenesis of various diseases, including hematologic malignancies.
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Background@#Large-scale studies about epidemiologic characteristics of renal infarction (RI) are few. In this study, we aimed to analyze the incidence and prevalence of RI with comorbidities in the South Korean population. @*Methods@#We investigated the medical history of the entire South Korean adult population between 2013 and 2019 using the National Health Insurance Service database (n = 51,849,591 in 2019). Diagnosis of RI comorbidities were confirmed with International Classification of Disease, Tenth Revision, Clinical Modification codes. Epidemiologic characteristics, distribution of comorbidities according to etiologic mechanisms, and trend of antithrombotic agents were estimated. @*Results@#During the 7-years, 10,496 patients were newly diagnosed with RI. The incidence rate increased from 2.68 to 3.06 per 100,000 person-years during the study period.The incidence rate of RI increased with age peaking in the 70s with 1.41 times male predominance. The most common comorbidity was hypertension, followed by dyslipidemia and diabetes mellitus. Regarding etiologic risk factor distribution, high embolic risk group, renovascular disease group, and hypercoagulable state group accounted for 16.6%, 29.1%, and 13.7% on average, respectively. For the antithrombotic treatment of RI, the prescription of antiplatelet agent gradually decreased from 17.0% to 13.0% while that of anticoagulation agent was maintained around 35%. The proportion of non-vitamin K antagonist oral anticoagulants remarkably increased from only 1.4% to 17.6%. @*Conclusion@#Considering the progressively increasing incidence of RI and high prevalence of coexisting risk factors, constant efforts to raise awareness of the disease are necessary. The current epidemiologic investigation of RI would be the stepping-stone to establishing future studies about clinical outcomes and optimal treatment strategies.
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Background/Aims@#We aimed to analyze the efficacy of angiotensin receptor-neprilysin inhibitor (ARNI) by the disease course of heart failure (HF). @*Methods@#We evaluated 227 patients with HF in a multi-center retrospective cohort that included those with left ventricular ejection fraction (LVEF) ≤ 40% undergoing ARNI treatment. The patients were divided into patients with newly diagnosed HF with ARNI treatment initiated within 6 months of diagnosis (de novo HF group) and those who were diagnosed or admitted for HF exacerbation for more than 6 months prior to initiation of ARNI treatment (prior HF group). The primary outcome was a composite of cardiovascular death and worsening HF, including hospitalization or an emergency visit for HF aggravation within 12 months. @*Results@#No significant differences in baseline characteristics were reported between the de novo and prior HF groups. The prior HF group was significantly associated with a higher primary outcome (23.9 vs. 9.4%) than the de novo HF group (adjusted hazard ratio 2.52, 95% confidence interval 1.06–5.96, p = 0.036), although on a higher initial dose. The de novo HF group showed better LVEF improvement after 1 year (12.0% vs 7.4%, p = 0.010). Further, the discontinuation rate of diuretics after 1 year was numerically higher in the de novo group than the prior HF group (34.4 vs 18.5%, p = 0.064). @*Conclusions@#The de novo HF group had a lower risk of the primary composite outcome than the prior HF group in patients with reduced ejection fraction who were treated with ARNI.
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Objective@#Rotational atherectomy (RA) and newly developed second-generation drug-eluting stent (DES) support the strategy of longer stent deployment in comparison to short stent implantations in the past. However, studies analyzing the outcome of patients who received long stent implantation following RA are few in number. The present study compared the clinical outcomes of patients with the coronary arterial disease (CAD) who underwent RA with long stent implantation using first- and second-generation DES. @*Methods@#A retrospective cohort study was performed at the single center from March 2003 to October 2019. Eighty-seven patients with CAD who underwent RA with ≥32 mm long stent implantation were enrolled in the study and divided into two groups according to the type of DES. As a primary endpoint, the cumulative 2-year incidence of major adverse cardiac events (MACE) including death, myocardial infarction (MI), target vessel revascularization, and stent thrombosis (ST) was compared by DES type. Adjusted interaction between the type of stent and clinical variables was estimated to determine the predictor variables of MACE. @*Results@#The second-generation DES group was associated with a shorter procedure duration and more common usage of intravascular ultrasound in procedural characteristics. In the second-generation DES group, a trend toward a lower rate of MI and ST existed. All-cause mortality and cardiovascular mortality were not significantly different. When combined with MACE, we could identify a significant reduction in the second-generation DES group. @*Conclusion@#In comparison to the first-generation DES group, the second-generation DES group was associated with a lower rate of MACE for 2 years in patients who underwent RA with long stent implantation.
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With the recent rapid increase in obesity worldwide, metabolic syndrome (MetS) has gained significant importance. MetS is a cluster of obesity-related cardiovascular risk factors including abdominal obesity, atherogenic dyslipidemia, high blood pressure and impaired glucose tolerance. MetS is highly prevalent and strongly associated with an increased risk of developing diabetes and cardiovascular disease, putting a great burden on human society. Therefore, it is very important to reduce MetS risk, which can improve patients’cardiovascular prognosis. The primary and most effective strategy to control each component of MetS is lifestyle change such as losing body weight, keeping regular exercise, adopting a healthy diet, quitting smoking and alcohol drinking in moderation. Many studies have shown that lifestyle modification has improved all components of MetS, and reduces the incidence of diabetes and cardiovascular disease. Here, the Korean Society of CardioMetabolic Syndrome has summarized specific and practical methods of lifestyle modification in the management of MetS in the healthcare field.
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Purpose@#In this study, we aimed to determine the value of hypoxic liver injury (HLI) in the emergency room (ER) for predicting hypoxic hepatitis (HH) and in-hospital mortality in ST elevation myocardial infarction (STEMI) patients. @*Materials and Methods@#1537 consecutive STEMI patients were enrolled. HLI in the ER was defined as a ≥2-fold increase in serum aspartate transaminase (AST). HH was defined as a ≥20-fold increase in peak serum transaminase. Patients were divided into four groups according to HLI and HH status (group 1, no HLI or HH; group 2, HLI, but no HH; group 3, no HLI, but HH; group 4, both HLI and HH). @*Results@#The incidences of HLI and HH in the ER were 22% and 2%, respectively. In-hospital mortality rates were 3.1%, 11.8%, 28.6%, and 47.1% for groups 1, 2, 3, and 4, respectively. Patients with HLI and/or HH had worse Killip class, higher cardiac biomarker elevations, and lower left ventricular ejection fraction. Multivariate logistic regression analysis showed that HLI in the ER was an independent predictor of HH [odds ratio 2.572, 95% confidence interval (CI) 1.166–5.675, p=0.019]. The predictive value of HLI in the ER for the development of HH during hospitalization was favorable [area under the curve (AUC) 0.737, 95% CI 0.643–0.830, sensitivity 0.548, specificity 0.805, for cut-off value AST >80]. Furthermore, in terms of in-hospital mortality, predictive values of HLI in the ER and HH during hospitalization were comparable (AUC 0.701 for HLI at ER and AUC 0.674 for HH). @*Conclusion@#Among STEMI patients, HLI in the ER is a significant predictor for the development of HH and mortality during hospitalization (INTERSTELLAR ClinicalTrials.gov number, NCT02800421).
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Purpose@#In this study, we aimed to determine the value of hypoxic liver injury (HLI) in the emergency room (ER) for predicting hypoxic hepatitis (HH) and in-hospital mortality in ST elevation myocardial infarction (STEMI) patients. @*Materials and Methods@#1537 consecutive STEMI patients were enrolled. HLI in the ER was defined as a ≥2-fold increase in serum aspartate transaminase (AST). HH was defined as a ≥20-fold increase in peak serum transaminase. Patients were divided into four groups according to HLI and HH status (group 1, no HLI or HH; group 2, HLI, but no HH; group 3, no HLI, but HH; group 4, both HLI and HH). @*Results@#The incidences of HLI and HH in the ER were 22% and 2%, respectively. In-hospital mortality rates were 3.1%, 11.8%, 28.6%, and 47.1% for groups 1, 2, 3, and 4, respectively. Patients with HLI and/or HH had worse Killip class, higher cardiac biomarker elevations, and lower left ventricular ejection fraction. Multivariate logistic regression analysis showed that HLI in the ER was an independent predictor of HH [odds ratio 2.572, 95% confidence interval (CI) 1.166–5.675, p=0.019]. The predictive value of HLI in the ER for the development of HH during hospitalization was favorable [area under the curve (AUC) 0.737, 95% CI 0.643–0.830, sensitivity 0.548, specificity 0.805, for cut-off value AST >80]. Furthermore, in terms of in-hospital mortality, predictive values of HLI in the ER and HH during hospitalization were comparable (AUC 0.701 for HLI at ER and AUC 0.674 for HH). @*Conclusion@#Among STEMI patients, HLI in the ER is a significant predictor for the development of HH and mortality during hospitalization (INTERSTELLAR ClinicalTrials.gov number, NCT02800421).
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BACKGROUND AND OBJECTIVES: We aimed to compare outcomes of complete revascularization (CR) versus culprit-only revascularization for ST-segment elevation myocardial infarction (STEMI) and multivessel disease (MVD) in the 2nd generation drug-eluting stent (DES) era. METHODS: From 2009 to 2014, patients with STEMI and MVD, who underwent primary percutaneous coronary intervention (PCI) using a 2nd generation DES for culprit lesions were enrolled. CR was defined as PCI for a non-infarct-related artery during the index admission. Major adverse cardiovascular event (MACE) was defined as cardiovascular (CV) death, non-fatal myocardial infarction, target lesion revascularization, or heart failure during the follow-up year. RESULTS: In total, 705 MVD patients were suitable for the analysis, of whom 286 (41%) underwent culprit-only PCI and 419 (59%) underwent CR during the index admission. The incidence of MACE was 11.5% in the CR group versus 18.5% in the culprit-only group (hazard ratio [HR], 0.56; 95% confidence interval [CI], 0.37–0.86; p<0.01; adjusted HR, 0.64; 95% CI, 0.40–0.99; p=0.04). The CR group revealed a significantly lower incidence of CV death (7.2% vs. 12.9%; HR, 0.51; 95% CI, 0.31–0.86; p=0.01 and adjusted HR, 0.57; 95% CI; 0.32–0.97; p=0.03, respectively). CONCLUSIONS: CR was associated with better outcomes including reductions in MACE and CV death at 1 year of follow-up compared with culprit-only PCI in the 2nd generation DES era.
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Humanos , Arterias , Stents Liberadores de Fármacos , Estudios de Seguimiento , Insuficiencia Cardíaca , Incidencia , Infarto del Miocardio , Intervención Coronaria PercutáneaRESUMEN
BACKGROUND AND OBJECTIVES@#We aimed to compare outcomes of complete revascularization (CR) versus culprit-only revascularization for ST-segment elevation myocardial infarction (STEMI) and multivessel disease (MVD) in the 2nd generation drug-eluting stent (DES) era.@*METHODS@#From 2009 to 2014, patients with STEMI and MVD, who underwent primary percutaneous coronary intervention (PCI) using a 2nd generation DES for culprit lesions were enrolled. CR was defined as PCI for a non-infarct-related artery during the index admission. Major adverse cardiovascular event (MACE) was defined as cardiovascular (CV) death, non-fatal myocardial infarction, target lesion revascularization, or heart failure during the follow-up year.@*RESULTS@#In total, 705 MVD patients were suitable for the analysis, of whom 286 (41%) underwent culprit-only PCI and 419 (59%) underwent CR during the index admission. The incidence of MACE was 11.5% in the CR group versus 18.5% in the culprit-only group (hazard ratio [HR], 0.56; 95% confidence interval [CI], 0.37–0.86; p<0.01; adjusted HR, 0.64; 95% CI, 0.40–0.99; p=0.04). The CR group revealed a significantly lower incidence of CV death (7.2% vs. 12.9%; HR, 0.51; 95% CI, 0.31–0.86; p=0.01 and adjusted HR, 0.57; 95% CI; 0.32–0.97; p=0.03, respectively).@*CONCLUSIONS@#CR was associated with better outcomes including reductions in MACE and CV death at 1 year of follow-up compared with culprit-only PCI in the 2nd generation DES era.
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OBJECTIVE: To determine the optimal CT image reconstruction parameters for the measurement of early transmitral peak velocity (E), early peak mitral septal tissue velocity (E′), and E / E′. MATERIALS AND METHODS: Forty-six patients underwent simultaneous cardiac CT and echocardiography on the same day. Four CT datasets were reconstructed with a slice thickness/interval of 0.9/0.9 mm or 3/3 mm at 10 (10% RR-interval) or 20 (5% RR-interval) RR-intervals. The E was calculated by dividing the peak transmitral flow (mL/s) by the corresponding mitral valve area (cm²). E′ was calculated from the changes in the left ventricular length per cardiac phase. E / E′ was then estimated and compared with that from echocardiography. RESULTS: For assessment of E / E′, CT and echocardiography were more strongly correlated (p < 0.05) with a slice thickness of 0.9 mm and 5% RR-interval (r = 0.77) than with 3 mm or 10% RR-interval. The diagnostic accuracy of predicting elevated filling pressure (E / E′≥ 13, n = 14) was better with a slice thickness of 0.9 mm and 5% RR-interval (87.0%) than with 0.9 mm and 10% RR-interval (71.7%) (p = 0.123) and significantly higher than that with a slice thickness of 3 mm with 5% (67.4%) and 10% RR-interval (63.0%), (p < 0.05), respectively. CONCLUSION: Data reconstruction with a slice thickness of 0.9 mm at 5% RR-interval is superior to that with a slice thickness of 3 mm or 10% RR-interval in terms of the correlation of E / E′ between CT and echocardiography. Thin slices and frequent sampling also allow for more accurate prediction of elevated filling pressure.
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Humanos , Conjunto de Datos , Ecocardiografía , Ventrículos Cardíacos , Procesamiento de Imagen Asistido por Computador , Válvula Mitral , Función VentricularRESUMEN
Among the various kinds of percutaneous coronary intervention techniques for balloon non-crossable severe calcified coronary stenosis, rotational atherectomy (RA) is known to be a therapy of choice. We describe a case in which a 1.25 mm RA burr non-crossable heavily calcified stenosis was successfully treated by the RA through '6 in 8 child-mother' guiding technique.
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Aterectomía Coronaria , Catéteres , Constricción Patológica , Estenosis Coronaria , Intervención Coronaria PercutáneaRESUMEN
Although cilostazol has decreased restenosis and target lesion revascularization (TLR) after drug-eluting stent implantation, it is not known if this effect is durable at 2 years. We analyzed 2 randomized studies (Drug-Eluting stenting followed by Cilostazol treatment reduces LAte REstenosis in patients with DIABETES mellitus and Drug-Eluting Stenting Followed by Cilostazol treatment reduces LAte REstenosis in patients with LONG native coronary lesions trials) in which 900 patients were randomly assigned to triple antiplatelet therapy (aspirin, clopidogrel, and cilostazol; triple group, n = 450) and dual antiplatelet therapy (aspirin and clopidogrel; standard group, n = 450) for 6 months in patients with diabetes or long lesions receiving drug-eluting stents. We evaluated 2-year major adverse cardiac events (MACEs) including death, myocardial infarction (MI), and TLR. Nine-month TLRs and MACEs were significantly decreased in the triple versus standard group. At 2 years, the triple group sowed significantly decreased TLRs (4.2% vs 9.1%, hazard ratio 0.45, 95% confidence interval 0.26 to 0.78, p = 0.004) and MACEs (5.6% vs 10.4%, hazard ratio 0.52, 95% confidence interval 0.32 to 0.84, p = 0.008) compared to the standard group with no differences in death and MI. In subgroup analysis, triple antiplatelet therapy decrease of 2-year TLR was favorable in all subgroups, especially in patients with paclitaxel-eluting stents, diabetes mellitus, small vessels, long lesions, and left anterior descending coronary artery lesions. In conclusion, compared to the standard group, initial benefit in decreases of 9-month TLRs and MACEs in the triple group was sustained at 2 years with no differences in death or MI. Triple antiplatelet therapy decrease of 2-year TLR was favorable in all subgroups, especially in patients with high-risk profiles.
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Aspirina/administración & dosificación , Reestenosis Coronaria/prevención & control , Stents Liberadores de Fármacos , Inhibidores de Agregación Plaquetaria/administración & dosificación , Tetrazoles/administración & dosificación , Ticlopidina/análogos & derivados , Anciano , Angioplastia Coronaria con Balón , Cilostazol , Clopidogrel , Reestenosis Coronaria/diagnóstico , Reestenosis Coronaria/epidemiología , Complicaciones de la Diabetes/complicaciones , Complicaciones de la Diabetes/patología , Complicaciones de la Diabetes/terapia , Quimioterapia Combinada , Femenino , Estudios de Seguimiento , Oclusión de Injerto Vascular/diagnóstico , Oclusión de Injerto Vascular/epidemiología , Oclusión de Injerto Vascular/prevención & control , Humanos , Masculino , Persona de Mediana Edad , Ticlopidina/administración & dosificación , Resultado del TratamientoRESUMEN
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.
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Catéteres , Consenso , Angiografía Coronaria , Corea (Geográfico) , Intervención Coronaria Percutánea , Estudios Prospectivos , Arteria Radial , Sistema de RegistrosRESUMEN
One of the major limitations of transradial coronary intervention is the inability to use large guiding system, which leads to the development of dedicated sheathless guide catheter system. However, these devices are not available in the Republic of Korea. We present a case in which conventional guiding catheter was used for sheathless transradial coronary intervention in the treatment of complex coronary anatomy.
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Catéteres , Enfermedad de la Arteria Coronaria , Arteria Radial , República de CoreaRESUMEN
BACKGROUND: Impaired exercise tolerance with dyspnea is common in hypertensive patients and this may be due to the exaggeration of nonuniform ventricular activation during exercise. So we want to evaluate the effect of left ventricular hypertrophy (LVH) on systolic intraventricular dyssynchrony during exercise. METHODS: A total of 85 patients with hypertension who having exertional dyspnea and 30 control individuals were enrolled. Exercise stress echocardiography was performed using a symptom limited, multistage supine bicycle test. To evaluate the dyssynchrony of left ventricular (LV), we calculated the standard deviation (SD) of the averaged time-to-peak systolic velocity (TPs-SD, ms) of 12 middle and basal LV segments obtained from the three standard apical views at rest and peak exercise. RESULTS: There was no significant difference in systolic blood pressure (BP) and heart rate between the two groups. TPs-SD was significantly higher in patients with LVH at rest (31.5 +/- 12.1 vs. 22.0 +/- 12.6 ms, p = 0.002) with exaggeration of the degree at peak exercise (39.0 +/- 11.9 vs. 24.6 +/- 13.3 ms, p < 0.001). Multiple regression analysis showed LV mass index was independently associated with LV dyssynchrony at peak exercise (beta = 0.515, p = 0.001) when controlled for age, sex, and systolic BP at peak exercise. CONCLUSION: Intraventricular systolic dyssynchrony during exercise is significantly associated with the degree of LVH in hypertensive patients.
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Humanos , Presión Sanguínea , Disnea , Ecocardiografía de Estrés , Tolerancia al Ejercicio , Frecuencia Cardíaca , Hipertensión , Hipertrofia Ventricular IzquierdaRESUMEN
A 36-year-old man with a history of Behcet's syndrome and vascular complications visited the emergency room due to sudden chest pain and dyspnea. He had no coronary risk factors. Electrocardiography showed ST elevations in multiple precordial leads. Echocardiography showed akinesia of the anterior wall, interventricular septum, and apex, with a movable round mass measuring 1.4 x 1.5 cm in the right atrium. Cardiac computed tomography (CT) suggested the presence of a thrombus in the coronary sinus protruding into the right atrium. Coronary angiography revealed total occlusion with thrombi in the proximal left anterior descending coronary artery. Thrombectomy and stent insertion were performed. After the procedure, the patient was prescribed warfarin. Follow-up CT indicated the disappearance of the thrombi originating from the coronary sinus.
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Adulto , Humanos , Síndrome de Behçet , Dolor en el Pecho , Angiografía Coronaria , Seno Coronario , Vasos Coronarios , Disnea , Ecocardiografía , Electrocardiografía , Urgencias Médicas , Estudios de Seguimiento , Atrios Cardíacos , Infarto del Miocardio , Factores de Riesgo , Stents , Trombectomía , Trombosis , WarfarinaRESUMEN
A 36-year-old man with a history of Behcet's syndrome and vascular complications visited the emergency room due to sudden chest pain and dyspnea. He had no coronary risk factors. Electrocardiography showed ST elevations in multiple precordial leads. Echocardiography showed akinesia of the anterior wall, interventricular septum, and apex, with a movable round mass measuring 1.4 x 1.5 cm in the right atrium. Cardiac computed tomography (CT) suggested the presence of a thrombus in the coronary sinus protruding into the right atrium. Coronary angiography revealed total occlusion with thrombi in the proximal left anterior descending coronary artery. Thrombectomy and stent insertion were performed. After the procedure, the patient was prescribed warfarin. Follow-up CT indicated the disappearance of the thrombi originating from the coronary sinus.
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Adulto , Humanos , Síndrome de Behçet , Dolor en el Pecho , Angiografía Coronaria , Seno Coronario , Vasos Coronarios , Disnea , Ecocardiografía , Electrocardiografía , Urgencias Médicas , Estudios de Seguimiento , Atrios Cardíacos , Infarto del Miocardio , Factores de Riesgo , Stents , Trombectomía , Trombosis , WarfarinaRESUMEN
BACKGROUND: The strength of each heart beat and the stiffness of large arteries contribute to blood pressure (BP). When the large arteries are stiff and their resistance greater, the afterload increases and this may change the function of the heart. However, the relation between common carotid artery stiffness and heart function in hypertensive patients has not been clarified. METHODS: Two hundred and twenty hypertensive patients underwent transthoracic and carotid echocardiography. Measurements of local arterial stiffness were taken at the right common carotid artery level and stiffness parameter (beta), pressure-strain elasticity modulus and intima-media thickness were calculated. Brachial cuff BP was measured just before starting the carotid study. The patients with any cardiovascular disease, diabetes mellitus, stroke, transient ischemic attack, or carotid stenosis were excluded. RESULTS: Carotid artery stiffness parameter (beta) was correlated with age and left ventricular mass index (p < 0.005). Even though beta was not correlated with LV systolic function, it was inversely correlated with diastolic function as measured by early mitral annular velocity. When the artery was stiffer, early mitral annular velocity (e') decreased (p < 0.001) and the index of left atrial (LA) pressure (early diastolic mitral inflow E velocity/e') increased (p = 0.001). In logistic regression, diastolic dysfunction was affected by age (beta -0.385, p = 0.001), LA volume index (beta 0.175, p = 0.013) and beta (beta -0.273, p = 0.019). CONCLUSION: In hypertensive patients, changes in carotid artery stiffness can affect the diastolic function, independent of age and LA volume index. Therefore, measurements and control of carotid stiffness can play an important role in the prevention of diastolic heart failure.
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Femenino , Humanos , Arterias , Presión Sanguínea , Enfermedades Cardiovasculares , Arterias Carótidas , Arteria Carótida Común , Estenosis Carotídea , Diabetes Mellitus , Ecocardiografía , Módulo de Elasticidad , Corazón , Insuficiencia Cardíaca Diastólica , Ataque Isquémico Transitorio , Modelos Logísticos , Accidente Cerebrovascular , Rigidez VascularRESUMEN
Intravascular ultrasonography (IVUS) imaging is a user-friendly technique widely used during coronary interventions. An 80-year-old man was admitted with chest pain, and successful percutaneous coronary intervention was performed with stent implantation. One week later, the patient complained of further chest pain. Urgent coronary angiography showed total occlusion of the middle left anterior descending artery and the aspiration of thrombi was high. IVUS imaging showed inadequate stent strut apposition and distal dissection. We attempted another stent implantation but the IVUS catheter was stuck on the 0.014 inch wire. Therefore, we tried to pass the wire across the lateral side. After the wire was successfully passaged, the sprinter balloon was passed through the crushed stent to expand it. After 4 days later, the patient was discharged with no symptoms or electrocardiographic change.