Heart and Vessels
Papers 2944
1 page of 295 pages (2,944 results)
The relationship between frailty and plaque characteristics is unclear and was investigated by optical coherence tomography (OCT) in this study. One hundred and four patients undergoing OCT before percutaneous coronary intervention were evaluated. Frailty was defined as a clinical frailty scale score of ≧6. Frailty was found in 16% of the patients (17/104). Compared with the nonfrail patients, frail patients showed significantly lower body mass index (BMI; 20.8 ± 4.0 kg/m2 vs. 25.0 ± 3.9 kg/m2, ...
Phosphodiesterase-3 (PDE3) inhibitors are widely used among patients with congestive heart failure (CHF). However, no studies have compared the cardiovascular outcomes between different PDE3 inhibitors in CHF management. In this report, we retrospectively compared the clinical benefits of two PDE3 inhibitors, milrinone and olprinone, to determine which better controls the progression of CHF. A total of 288 hospitalized patients who received PDE3 inhibitors [(milrinone; n = 77 and olprinone; n = ...
The correlation of fractional flow reserve, which is presently the gold standard for evaluating myocardial ischemia, with three-dimensional quantitative coronary analysis-based quantitative flow ratio (QFR) is well-known. This study aims to evaluate the relationship of QFR after second-generation drug-eluting stent (2nd gen-DES) implantation to clinical outcomes. A total of 61 consecutive lesions, on which 2nd gen-DES implantation was performed from October 2014 to December 2015, were analyzed. ...
Activation of mineralocorticoid receptor antagonists (MRAs) is cardioprotective; however, this property is lost upon blockade or inactivation of adenosine (ADO) receptor A2b. In this study, we investigated whether the effects of MRAs are mediated by an interaction between cardioprotective ADO receptors A1 and A3. Spironolactone (SPI) or eplerenone (EPL) increased ADO levels in the plasma of treated animals compared to control animals. SPI or EPL increased the protein and activity levels of ecto-...
Pulmonary arterial hypertension (PAH) carries high morbidity and mortality despite available treatment options. In severe PAH, right ventricular (RV) diastolic pressure overload leads to interventricular septal bowing, hindering of left ventricular diastolic filling and reduced cardiac output (CO). Some animal studies suggest that pacing may mitigate this effect. We hypothesized that eliminating late diastole via ventricular pacing could improve CO in human subjects with severe PAH. Using minima...
The femoral approach with the Needle’s Eye Snare (NES) is often used for bailout after failure of the superior approach for transvenous lead extraction (TLE). The safety and efficacy of the NES as a first-line tool for TLE remain unclear. The medical records of patients who underwent TLE via the femoral approach utilizing the NES from May 2014 to June 2019 in Peking University People’s Hospital were retrospectively reviewed. Nine hundred and eighty-five leads were extracted in 492 patients (369 ...
A prolonged QRS duration (QRSd) is promising for a response to cardiac resynchronization therapy (CRT). The variation in human body sizes may affect the QRSd. We hypothesized that conduction disturbances may exist in Japanese even with a narrow ( 130 ms may not be necessary, and the current JCS guidelines appear to be appropriate.
Soluble urokinase-type plasminogen activator receptor (suPAR) is a membrane-binding protein that is released into the blood stream by immune activation. Recent reports suggest that circulating suPAR levels are associated with adverse cardiovascular outcomes. Exercise tolerance is an independent predictor of prognosis in patients with heart failure (HF); however, the relationship between serum suPAR level and exercise tolerance is unclear. We prospectively enrolled 94 patients who were hospitaliz...
We sought to recognize the blood flow velocity (BFV) through the left anterior descending (LAD) coronary artery and its small intramyocardial (IM) branches by transthoracic Doppler-echocardiography in patients with aortic stenosis (AS). Sixty-two patients, aged 74.0 ± 9.6 years, 37 women, with preserved left ventricular (LV) function, apparently free of active ischemic disease, were enrolled and classified into 3 groups according to the mean gradient (MG) across the aortic valve: 13 patients (21...
The utility of abdominal aortic calcification (AAC) for prediction of cardiovascular events (CVEs) in patients with acute coronary syndrome (ACS) remains to be determined. The aim of this prospective study was to determine the predictive value of the abdominal aortic calcification index (ACI), a semi-quantitative measure of AAC, for CVEs in patients with ACS. We evaluated 314 patients with ACS. All patients underwent successful percutaneous coronary intervention to the culprit coronary vessel wi...
Top fields of study
Heart failure
Myocardial infarction
Diabetes mellitus