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Results 251 - 285 of 285
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Gieser R G - - 1984
A patient who developed intravitreal ciliary body neovascularization following cyclocryotherapy for neovascular glaucoma is presented. Presenting vitreous hemorrhage limited her visual acuity to 20/200. After panretinal photocoagulation, the intravitreal ciliary body neovascularization regressed, the vitreous hemorrhage cleared, and the patient's visual acuity was 20/30. The possible pathogenesis of intravitreal ciliary ...
Rozing P M - - 1984
Partial arthrodesis of the wrist was performed on six cadavers in order to study the residual excursion of the wrist. Arthrodesis between the radius and scaphoid left 40 per cent extension/flexion and 61 per cent radial/ulnar deviation. Arthrodesis between the radius, scaphoid and lunate left 36 per cent extension/flexion and ...
Kupari M - - 1983
Simultaneous M-mode echocardiograms and external phonocardiograms were recorded in 15 healthy subjects to evaluate the genesis of the second heart sound. The onset of the second sound was found synchronous with the coaptation of the aortic valve cusps and a sharp vibration on the aortic wall. The closed valve was ...
Raizada V - - 1983
The phonocardiographic characteristics of the porcine bioprosthesis in the aortic position were evaluated in 24 asymptomatic patients. A medium to high frequency early systolic sound (AO) was present in 16 of 24 patients; abrupt "halting" of the stiff cusps of the porcine bioprosthesis during early left ventricular ejection seems to ...
Shell W E - - 1982
The initial PCW, Killip-Scheidt classification, presence of third heart sound, and mortality were compared in 90 patients presenting with acute transmural myocardial infarction. Clinical and hemodynamic assessment was performed within 12 hours (time to clinical classification = 4.7 +/- 2.7 hours (mean +/- SD), time to hemodynamic assessment = 5.8 ...
Wei J Y - - 1981
Although mitral valve prolapse is often associated with a systolic click or murmur, it is not widely appreciated that a sound or murmur may also occur in diastole. Nine patients with a systolic click or murmur and echocardiographic evidence of mitral prolapse had, in addition, a diastolic sound or an ...
Kagawa Y - - 1980
A newly developed real-time sound spectroanalyzer was found to be capable of diagnosing malfunction of prosthetic heart valves. Sound spectroanalysis is believed to be superior to other methods such as phonocardiography and echocardiography. This system, developed in our institute, allows display on a cathode ray oscilloscope of five different modes ...
Ionescu V - - 1980
This paper sums up for clinical purposes the recent data and some of the authors' own observations concerning the genesis and variability of heart sounds. The importance of some factors in the "cardio-hemo-vasculo-thoracic" complex where the heart sounds are produced and transmitted, is especially emphasized; such are: acceleration and decelaration ...
Stefadouros M A - - 1980
Auscultation becomes more meaningful when the forces that cause the cardiac sounds are understood. We review the mechanisms responsible for the diastolic heart sounds and correlate them with various clinical conditions that affect their timing, loudness, and pitch. A careful search for these soft and illusive sounds should be included ...
Farah Michel G. - - 1979
First heart sound alternans in the absence of pulsus alternans, or variation in heart rate (i.e., variation in PR interval), occurring in a patient with massive neoplastic pericardial effusion is described. The mechanism appears to be similar to that in electrical alternans and is shown by echocardiography to be related ...
Renner W F - - 1979
Frequency analyses of the first heart sound (S1) were performed in 80 normal subjects and 80 postinfarction patients. A readily recognizable frequency pattern characterized by a quality of resonance greater than or equal to 2, as measured by the Q factor at 3 db down, was noted in 78 of ...
Riecanský I - - 1979
A phonocardiological analysis of the first heart sound was made and systolic time intervals were measured in 40 patients (ischaemic heart disease, hypertensive heart disease, cardiomyopathies) with incipient cardiac failure (functional groups I--II according to the NYHA) with auscultatory changes of the first heart sound and in controls of randomly ...
Tauber J W - - 1978
Daily simultaneous recordings of an electrocardiogram and an external thorax phonocardiogram and abdominal phonocardiogram were obtained in 24 rats with abdominal heart grafts so that rejection could be studied. The sounds recorded above the heterotopic heart are the result of a pressure differential between host and graft ventricle competing with ...
Clements S D SD - - 1977
A patient had a ruptured ventricular septum due to an acute anterior myocardial infarction. An aortic balloon pump was inserted and a subsequent phonocardiographic study was made showing inflation and deflation sounds and the diastolic pulse wave generated. This study defines the extra sounds and pulses generated by such a ...
Furukawa K - - 1977
The left ventricular filling and wall movement were investigated in subjects with a third heart sound or ventricular gallop by echocardiography. Nine patients with ventricular gallop, who had left ventricular volume overload disease, and 6 normal subjects with a third heart sound had higher normalized peak rate of increase of ...
Lance V Q - - 1977
Ten healthy men, ages 22 to 35, were studied non-invasively standing (control), at the onset of squatting ('prompt squat'), and at two minutes of squatting. Squatting produced decreases in heart rate, isovolumic contraction time, pre-ejection period, and pulse transmission time from onset of depolarisation to the first heart sound, left ...
Benchimol A - - 1977
One hundred patients, 17 to 67 years of age, had normal hearts diagnosed on the basis of complete right and left heart catheterization and coronary cineangiography. Phonocardiograms were obtained from each patient, providing an average of 17 recordings per subject for analysis; 75/100 (75%) subjects had a recordable fourth sound; ...
Crawford M H - - 1977
Fortified by knowledge gained from cardiac catheterization studies, a more precise physiologic approach to cardiac auscultation has evolved in recent years. This system involves observing changes in the characteristics of murmurs and abnormal sounds during respiration, the Valsalva maneuver, exercise, changes in posture, after pharmacologic agents and during arrhythmias, These ...
Wellburn A R - - 1976
1. The envelopes of etioplasts and 1-2h etiochloroplasts are permeable to mevalonate, but plastids from etiolated tissue illuminated for longer than 4h show progressive impermeability towards mevalonate. 2. Acetate permeates the envelopes of 1-4h etiochloroplasts but does not significantly cross the envelopes of etioplasts or 8-24h etiochloroplasts. 3. A translocator ...
Macieira-Coelho E - - 1976
Systolic time intervals and heart sounds were studied in twenty patients with left bundle branch block. A definite cause for the organic heart disease was not ascertained. Abnormal duration of the electromechanical systole (Q-A2), due to a prolongation both of the preejection period (PEP) and of the Q-M1 intervals, was ...
Towne W D - - 1976
A patient is described with severe rheumatic mitral and tricuspid insufficiency in whom both atrioventricular valves with their chordae tendineae and papillary muscles were resected and replaced with Hancock porcine grafts. This would appear to be the second such patient reported and the first described in detail in whom the ...
Thompson P L - - 1976
Physical examination can yield valuable diagnostic clues in a patient suspected of ischaemic heart disease. Examination during chest pain is especially informative. The haemodynamic abnormalities which accompany angina pectoris may precipitate elevation of blood pressure, pulsus alternans, pulsus bigeminus, abnormal precordial pulsations, a fourth heart sound or a systolic bruit; ...
Brown D F - - 1976
Variable intensity and timing of valvular sounds were noted in two patients with permanent pacemakers and prosthetic valves. In the first patient, who had a mitral and a tricuspid prosthesis, valvular opening sounds became widely separated with a change from nodal to ventricular paced rhythm. In a second patient, who ...
Bonner A J AJ - - 1976
In the presence of atrial fibrillation, the diastolic murmur of mitral stenosis can appear augmented during early systole before the mitral valve closure sound. This phenomenon has previously been thought to be due to increased blood flow velocity across the narrowing mitral valve orifice. We have observed patients in whom ...
Bamrah V S - - 1976
Audible atrial sounds were noted in a patient with congestive cardiomyopathy and atrial fibrillation with slow ventricular rate. Oscillatory motion of similar periodicity as fibrillation waves in the ECG and the sounds in the phonocardiogram was demonstrated in aortic and left ventricular walls, mitral, tricuspid and aortic leaflets by echocardiography. ...
Prewitt T - - 1975
In order to study the relation between the 'rapid filling wave' of the apex cardiogram and left ventricular filling, simultaneous apex cardiograms, phonocardiograms, and echocardiograms were recorded in 57 patients. Continuous measurements of left ventricular dimension were derived from the echocardiograms by digitization using manual tracing and a computer. Possible ...
DiDonna G J - - 1975
To evaluate the significance of audible gallop sounds in the right supraclavicular fossa we performed simultaneous external heart sound recordings at 50 and 100 Hz at the left ventricular apex, left sternal border, and right supraclavicular fossa in 50 patients with audible gallop sounds at the left ventricular apex. In ...
Ali N - - 1975
A case of partial atrioventricular block with Wenckebach periods and a loud first heart sound (S1) associated with the longest P-R interval of the cardiac cycles is described. Although the surface electrocardiogram provided no clues to this paradoxical behavior, the intraatrial electrogram revealed that the long P-R interval with the ...
Waider W - - 1975
To provide additional information on the relation of valvular events to the principal components of the first heart sound (s1), combined echocardiograms and phonocardiograms were recorded in 49 subjects, chosen because of audible splitting of S1 or a combination of S1 and an ejection sound. The subjects included 14 normal ...
Gronow W S - - 1975
Phonocardiograms were recorded in 200 clinically normal adults, mean age 51 +/- 6 years, at rest and after a double Master's test. Five-year follow-up clinical data was obtained in 199 of these 200 subjects. The resting fourth heart sound correlated with the subsequent development of coronary heart disease within 5 ...
Frank J S - - 1974
The structures present in the rabbit myocardial interstitium have been defined and quantified. Stereological methods were used for the quantification. The extracellular space contains abundant ground substance (23%) distributed in a homogeneous mat throughout the space and within the T tubules. The remainder of the space contains 59% blood vessels, ...
Sengupta R P - - 1972
Three cases of extradural haematoma during ventricular drainage are reported and the relevant literature has been reviewed. Aetiology, diagnosis, and management are discussed. Defective blood clotting is mentioned as a possible precipitating factor.
Farah, Michel G.
First heart sound alternans in the absence of pulsus alternans, or variation in heart rate (i.e., variation in PR interval), occurring in a patient with massive neoplastic pericardial effusion is described. The mechanism appears to be similar to that in electrical alternans and is shown by echocardiography to be related ...
Parker F D - - 1918
1. An understanding of the physics of sound is essential for a better comprehension of refined auscultation, tone analysis, and the use of these instruments. 2. The detection of variations of the third heart sound should prove a valuable aid in predicting mitral disease. 3. The variations of the outflow ...
Eyster J A - - 1911
This investigation comprises a study of venous pulse, carotid, cardiographic, and heart sound records from twenty-one men with normal hearts. The heart sounds were recorded by the method of Einthoven. When correction is made for transmission, the first heart sound begins, on an average, 0.131 of a second before the ...
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