Disease relevance of Heart Catheterization

• These data support an approach to the treatment of acute myocardial infarction that includes early intravenous administration of t-PA and deferred cardiac catheterization and coronary angioplasty [1].
• We studied the effects of intranasal cocaine (10 percent cocaine hydrochloride; 2 mg per kilogram of body weight) on the blood flow in and dimensions of the coronary arteries and on myocardial oxygen demand in 45 patients (34 men and 11 women, 36 to 67 years of age) who were undergoing cardiac catheterization for the evaluation of chest pain [2].
• MEASUREMENTS AND MAIN RESULTS: We prospectively compared 24-hour Holter ST-segment monitoring at admission, quantitative exercise thallium tomography, and cardiac catheterization 5 +/- 2 days after admission and analyzed their value for predicting a cardiac event in patients with unstable angina within 6 months [3].
• Fourteen patients with hypertrophic cardiomyopathy, 40 with aortic stenosis, and 4 with discrete subaortic stenosis had phonocardiograms during left heart catheterization that showed changes in the magnitude of the murmur in response to increases in the postextrasystolic gradient [4].
• Carcinoid heart disease. Correlation of high serotonin levels with valvular abnormalities detected by cardiac catheterization and echocardiography [5].

High impact information on Heart Catheterization

• We sought to determine the prevalence and clinical effects of myocardial bridging in children with hypertrophic cardiomyopathy who underwent cardiac catheterization [6].
• Life-threatening reactions to intravenous protamine, administered to reverse heparin anticoagulation, have been reported with increasing frequency as a consequence of the escalating use of cardiac catheterization and coronary bypass surgery [7].
• To examine the relative nephrotoxicity of the two types of agents, we randomly assigned 443 patients to receive either iopamidol (nonionic) or diatrizoate (ionic) for cardiac catheterization [8].
• During cardiac catheterization, the atrial septal defect was sized and closed using a transvenous umbrella technique [9].
• We examined impedance in 8 normotensive and 11 hypertensive (mean 96.7 vs. 122.2 mmHg) age-matched, Chinese patients undergoing cardiac catheterization at rest, during nitroprusside, and handgrip exercise before and after beta blockade (propranolol) [10].

Chemical compound and disease context of Heart Catheterization

• Thirty-eight adults with valvular and/or myocardial disease had heart catheterization with coronary blood flow and myocardial O2 consumption (MVO2) per 100 g measured by the nitrous oxide washout technique [11].
• To evaluate the effect of acute vasodilator therapy, nitroprusside was administered at cardiac catheterization to five infants (ages 10 days to 6 months) with isolated ventricular septal defect and congestive heart failure [12].
• We evaluated the acute hemodynamic responses to hydralazine during cardiac catheterization in eight infants (ages 1.0 to 5.5 months) with congestive heart failure due to complete atrioventricular canal defect [13].
• Isoproterenol infusion during cardiac catheterization as a simulator of exercise was evaluated with hemodynamic studies in children with pulmonary (15) or aortic (8) valve stenosis [14].
• Although there was neither pulmonary hypertension nor intracardiac shunt present at the time of cardiac catheterization in both cases, the presence of a patent foramen ovale with an interatrial right-to-left shunt was demonstrated by a simple ascorbate dilution technique following a Valsalva maneuver [15].

Biological context of Heart Catheterization

• Right ventricular endomyocardial biopsy, right heart catheterization, and systolic time intervals were done in 33 adult patients receiving doxorubicin (AdriamycinTM) [16].
• METHODS AND RESULTS: During cardiac catheterization in 28 children, the effect of ATP-MgCl2 on the pulmonary artery pressure (PAP) and pulmonary vascular resistance index (Rp) was compared with tolazoline [17].
• Left ventricular function in 53 patients with secundum atrial septal defect was assessed by computer-assisted analysis of the left ventricular echocardiogram and by cardiac catheterization [18].
• To determine whether alteration of intrinsic myocardial stiffness is responsible for the reduction of left ventricular filling pressure and volume by nifedipine in patients with impaired baseline ventricular function, we evaluated the hemodynamic responses in 32 patients undergoing diagnostic cardiac catheterization [19].
• The effects of verapamil were compared with those of nitroprusside at matched mean arterial pressures and heart rates in 10 symptomatic hypertensive patients during cardiac catheterization [20].

Anatomical context of Heart Catheterization

• Nitroglycerin (0.3 mg) was administered sublingually to 14 patients undergoing cardiac catheterization, and pressure waves compared in the ascending aorta and brachial artery [21].
• In conclusion, enoxaparin achieves therapeutic levels of anticoagulation more rapidly and consistently than UFH in chronically anticoagulated patients with prosthetic heart valves and/or atrial fibrillation undergoing cardiac catheterization [22].
• Central venous pressure measurements in the abdominal inferior vena cava were compared with measurements in the right atrium in 10 infants and 10 children during cardiac catheterization [23].
• Cardiac output was calculated with a least squares error analysis before and after dipyridamole stress for the left and right ventricles in all 10 patients, and comparison was made with cardiac output by Fick dilution technique during cardiac catheterization in seven patients [24].
• Electrophysiologic studies, echocardiograms, cardiac catheterizations and histologic and biochemical analyses of skeletal muscle biopsies were performed in 10 patients (aged 10 to 37 years, mean 21) who had dysrhythmias as the initial manifestation of cardiomyopathy [25].

Associations of Heart Catheterization with chemical compounds

• CONCLUSIONS: Patients have a small but significant rise in serum creatinine after cardiac catheterization with a nonionic contrast agent [26].
• In the 2 patients who had cardiac catheterization before and during medroxyprogesterone acetate therapy, mean pulmonary arterial pressure fell 13 and 19 mm Hg [27].
• Accordingly, 4 to 8 year (mean +/- 1SD, 4.6 +/- 2.6 years) follow-up data were obtained for all but one of 383 patients who underwent both exercise thallium-201 stress testing and cardiac catheterization from 1978 to 1981 [28].
• To clarify the mechanism of displacement of the left ventricular diastolic pressure-volume function with alteration of loading conditions, the effects of nitroglycerin on pressure-volume relations in 13 patients were compared with those of amyl nitrite in 13 other patients during cardiac catheterization [29].
• After a 4-minute i.v. dipyridamole infusion, 0.14 mg/kg/min, serial thallium-201 scans were obtained in 60 patients undergoing cardiac catheterization [30].

Gene context of Heart Catheterization

• Echocardiography and cardiac catheterization were used in mice to assess the physiologic effects of i.v. UcnII and CRFR2 deficiency on left ventricular function and the systemic vasculature [31].
• All patients underwent cardiac catheterization, coronary and ventricular angiography, biventricular endomyocardial biopsy, and DNA screening of the SCN5A gene [32].
• We also determined whether serum-soluble ICAM-1 levels (sICAM) correlated with rejection by evaluating 145 serum specimens from 48 cardiac transplant patients and 8 specimens from patients undergoing diagnostic cardiac catheterization [33].
• Cardiac catheterization was performed in mice and showed a stepwise increase in contractile function in the betaARK1(+/-) and betaARK1(+/-)betaARKct mice with the greatest level observed in the betaARK1(+/-)betaARKct animals [34].
• This study investigated the relation between the severity of heart failure and the extent of the reduction of beta 1-adrenergic receptor messenger ribonucleic acid (mRNA) levels in biopsy specimens from the ventricular septum obtained during cardiac catheterization of patients with various degrees of heart failure [35].

Analytical, diagnostic and therapeutic context of Heart Catheterization

• Thirteen juvenile-onset diabetics with azotemic diabetic nephropathy (mean serum creatinine level, 6.8 mg/dl) being evaluated fro renal transplantation underwent cardiac catheterization with angiography [36].
• To evaluate the long-term hemodynamic results in cardiac transplant patients treated with cyclosporine and prednisone, 19 patients were studied by cardiac catheterization and endomyocardial biopsy 13 +/- 3 months after transplantation [37].
• To determine the effect of filling pressure on the pattern of left ventricular filling in humans, the mitral flow velocity profile was measured by pulsed wave Doppler echocardiography during right and left heart catheterization in 11 patients before and during nitroglycerin infusion [38].
• Forty-three percent (26 of 61 in Group B) of patients with inadequate or abnormal thallium stress tests had significant coronary artery disease on cardiac catheterization [39].
• The anomaly was first suspected after radionuclide angiocardiography was performed using technetium-99m macroaggregated albumin and was confirmed by cardiac catheterization [40].

References