Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “HEART AUSCULTATION”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 451 records · Page 25Linked to original sources
PubMed1978

The echocardiographic correlate of a systolic click appearing after open mitral commissurotomy.

An echocardiographic correlate for a post-valvulotomy mid-systolic click is described. Simultaneous echocardiographic and phonocardiographic studies demonstrated that the click was temporally related to a sudden midsystolic posterior motion of part of the mitral valve apparatus. This temporal relationship suggests that the sudden change in position of portions of the mitral valve resulted in the loud midsystolic click. In our patient the sudden leaflet movement associated with the click was apparently a localized abnormality.

Adult↗
PubMedDate not supplied

Ruptured aneurysm of the right sinus of Valsalva: two pulsed Doppler echocardiographic studies.

Pulsed Doppler echocardiography (PDE) was performed on two cases with ruptured aneurysm of the right sinus of Valsalva into the right ventricle. PDE revealed a wide band pattern throughout the cardiac cycle when the sample volume was placed within the aneurysm. In the right ventricle below the aneurysm, a continuous disturbed flow in case 1 and a diastolic turbulence in case 2, was widely recorded, respectively. In contrast, the flow pattern of the right ventricular outflow tract distal to the aneurysm showed a systolic disturbed flow in both cases. These PDE findings were consistent with the shunt flows in angiocardiography.

Adult↗
PubMed1979

Anomalous systemic arterial supply to the basal segments of the lung presenting with a murmur.

A murmur was discovered on routine preschool physical examination of a 5 year and 7 month-old boy. A lower lobe lesion was detected by chest X-ray. Aortography demonstrated that a large systemic artery from the descending thoracic aorta supplied the basilar segments of the left lower lobe, which had no normal pulmonary arterial supply. A clinical diagnosis of intralobar sequestration of the lung was made, and left lower lobectomy was performed.

Aorta, Thoracic↗
PubMedDate not supplied

The vibratory innocent heart murmur in schoolchildren: a case-control Doppler echocardiographic study.

In 810 schoolchildren (aged 5-14 years) the prevalence of a grade 1-3/6 vibratory innocent heart murmur (VIHM) is 41%. Restricted to a grade 2 or 3 VIHM, the prevalence is 14%, decreasing from 21% in the age-class 5-6 years to 8% for children 13-14 years of age. The prevalence of a grade 3 VIHM is 1%. Together with a matched control, 84 children with a grade 2 or 3 VIHM underwent further cardiologic examination including electrocardiography, phonocardiography, and Doppler echocardiography. A positive correlation was found between the presence of a VIHM and higher left ventricular voltages on the ECG, but within the normal range; lower heart rate; smaller diameter of the ascending aorta (AAO); and higher blood flow velocity and higher maximal acceleration of the blood flow in the LVOT and the AAO. In 40% of the children with a VIHM, a systolic aortic valve vibration was seen with a frequency > or = 100 Hz and an amplitude > or = 1 mm, whereas this type of vibration was present in only one case control. No significant difference was found concerning the prevalence of false tendons in the left ventricle, systolic and diastolic diameter of the left ventricle, systolic time intervals, and shortening fraction of the left ventricle. The VIHM is strongly associated with a smaller AAO, with higher velocity and acceleration of the blood flow in the LVOT and AAO, and with a vibratory phenomenon of the aortic valve, pointing towards the LVOT-aortic valve region as the site of origin of the VIHM.

Adolescent↗
PubMed1987

Now that we have pulse oximeters and capnographs, we don't need precordial and esophageal stethoscopes.

One clinician argues that precordial and esophageal stethoscopes are obsolete. Current technology, including pulse oximetry, electrocardiography, and capnography, is both easier to use and more accurate. Another clinician argues that these stethoscopes have an important place in safe patient management. They are an inexpensive but effective extension of the anesthesiologist's own senses.

Carbon Dioxide↗
PubMed1987

Congenital ventricular aneurysm and diverticulum in children.

Clinical profiles were analysed of 18 children with congenital ventricular aneurysm (CVA) and diverticulum (CVD) (nine with CVA and nine with CVD). Of 18 children, only six had any symptoms, consisting of chest discomfort, palpitation, or convulsion. Heart murmurs were heard in nine of the 18 children, and a nonspecific systolic ejection murmur in one. A systolic click was heard in only four children. Dyskinesia of an abnormal protrusion of the cardiac silhouette on the chest x-ray film was detected in only three. The ECG revealed abnormal findings in all children. In those with CVA, signs of myocardial damage or left axis deviation (LAD) and left bundle branch block (LBBB) were the main findings. Among those with CVD, multiple premature ventricular contractions (PVCs) were present in four; some signs of myocardial damage were present in three. None of those with CVD had LAD or LBBB. Among the four children with right ventricular diverticulum, multiple PVCs were present in three. The lesions were detected by two-dimensional echocardiography (2DE) before angiography in 13 (72%) of 18 children. The wall kinetics of the lesions, as seen on 2DE, were in agreement with the subsequent angiographic findings.

Adolescent↗
PubMed1989

Automatic detection of sounds and murmurs in patients with Ionescu-Shiley aortic bioprostheses.

The problems encountered in the automatic detection of cardiac sounds and murmurs are numerous. The phonocardiogram (PCG) is a complex signal produced by deterministic events such as the opening and closing of the heart valves, and by random phenomena such as blood-flow turbulence. In addition, background noise and the dependence of the PCG on the recording sites render automatic detection a difficult task. In the paper we present an iterative automatic detection algorithm based on the a priori knowledge of spectral and temporal characteristics of the first and second heart sounds, the valve opening clicks, and the systolic and diastolic murmurs. The algorithm uses estimates of the PCG envelope and noise level to identify iteratively the position and duration of the significant acoustic events contained in the PCG. The results indicate that it is particularly effective in detecting the second heart sound and the aortic component of the second heart sound in patients with Ionescu-Shiley aortic valve bioprostheses. It has also some potential for the detection of the first heart sound, the systolic murmur and the diastolic murmur.

Algorithms↗
PubMed1990

Spectral analysis and acoustic transmission of mitral and aortic valve closure sounds in dogs. Part 3. Effects of altering heart rate and P-R interval.

A surgical protocol was designed to implant, in seven dogs, a programmable sequential atrioventricular pacemaker after destruction of the bundle of His to produce a chronic heart block. The heart rate and P-R interval were then varied independently and their influence on the spectra and acoustic transmission of the mitral M1 and aortic A2 valve closure sounds was studied. Results indicate that the major effects of varying the P-R interval are a strong change in the intensity of M1 and modifications of its acoustic transmission across the heart/thorax acoustic system. No similar influence is observed on the intensity and acoustic transmission of A2. Varying the heart rate has a small effect of the intensity of M1 but none on the intensity of A2. In addition, changes in either the P-R interval or the heart rate do not seem to modify the spectral profile of the intracardiac and thoracic M1 and A2 components.

Animals↗