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Results 251 - 300 of 531
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Georgiadis D - - 1998
The purpose of this study was the comparison between 1 MHz and 2 MHz transducers in the detection of Doppler microembolic signals (MES). Intraoperative monitoring was performed over the arterial tubing of the extracorporal circulation circuit in 10 patients undergoing coronary artery bypass surgery, using a pulsed ultrasound machine (DWL ...
Hawley G - - 1998
The aim of the research was to discover the experience and meaning of prayer of patients in hospital when undergoing coronary artery bypass graft surgery. Ethnographic-type post discharge interviews with 13 participants formed the major data source. Using the grounded theory method, the basic social psychological process was labeled seeking ...
Sherman C - - 1998
Chlorine bleach and detergent are routinely used by householders in El Progreso, Honduras in the process of cleaning washbasins and drums, the two most important larval habitats of Aedes aegypti in the city. The efficacy of these materials in eliminating eggs, larvae, and pupae of Ae. aegypti was assessed under ...
Langholz D - - 1998
Though qualitative transthoracic echocardiographic criteria for abnormal systolic leaflet motion are widely accepted as diagnostic characteristics of mitral valve prolapse, transesophageal echocardiographic criteria have not been evaluated against such a standard. Because transesophageal imaging planes are not identical to transthoracic imaging planes, validation of transesophageal echocardiographic criteria for mitral valve ...
Worth L T - - 1998
OBJECTIVE: To determine clinical signs of pericarditis in horses and to determine whether there were any relationships among clinical signs, echocardiographic findings, treatment, and outcome. DESIGN: Retrospective study. ANIMALS: 18 horses. RESULTS: Physical examination was performed on 16 horses. Cardiovascular abnormalities included tachycardia (n = 16), pericardial friction rub (10), ...
Conkin J - - 1998
HYPOTHESIS: Information about venous gas emboli (VGE) detected in the pulmonary artery such as the occurrence of VGE, Grade of VGE, the time when VGE first appear, and the time course of the Grade or occurrence of VGE, could be used to better assess the probability of decompression sickness [P(DCS)] ...
Bertulezzi G - - 1998
Pseudoxanthoma elasticum (PXE) is a rare heritable disorder of the connective tissue characterized by marked clinical heterogeneity. Common cardiovascular complications of PXE include renovascular hypertension, premature coronary artery disease and calcification of peripheral arteries frequently leading to claudicatio intermittens; fibrous thickening of the endocardium and atrioventricular valves, leading to restrictive ...
Santoro G M - - 1998
BACKGROUND: To overcome the relatively low accuracy of exercise stress testing (EST) in detecting coronary artery disease (CAD), both echocardiography and perfusion scintigraphy have been evaluated in conjunction with pharmacologic stress, but there is still uncertainty of the relative value of these tests as possible first-line examinations for suspected CAD. ...
Kenney C A - - 1998
When Thomas Willis published Cerebri Anatome in 1664, he demonstrated within its pages the greatest insight to date into the structure and function of the circular arterial anastomosis that later came to bear his name. For centuries prior, others had described and illustrated the vascular arrangement on the base of ...
Eishi K - - 1997
BACKGROUND AND AIMS OF THE STUDY: In terms of valve-related complication and ventricular function, mitral valve repair (MVR) is superior to valve replacement. To date, chordae shortening and transposition have been used for diffuse prolapses. We have used artificial chordae implantation for MVR since 1986, and here review our long-term ...
Olsovsky M R - - 1997
This study is a prospective, randomized comparison of monophasic and biphasic defibrillation thresholds in 19 patients with a single transvenous lead. Despite using reverse polarity and optimal tilts for the monophasic waveform, the defibrillation threshold was reduced with biphasic shocks from 15.8 +/- 11.3 to 11.5 +/- 6.1 (p <0.05) ...
Kane K J - - 1997
Recirculation of mucus between adjacent openings into the maxillary antrum is a relatively common cause of persistent sinusitis in either the pre- or postsurgical patient. It is particularly common after FESS when the new middle meatal antrostomy has been sited too far posteriorly behind an existing natural maxillary ostium. The ...
Burke A P - - 1997
The mechanism of sudden cardiac death in patients with mitral valve prolapse is poorly understood. Twenty-four hearts from patients with mitral valve prolapse who suddenly died (mean age 34 +/- 8 years) and 16 trauma control hearts (mean age 30 +/- 7 years) were histologically studied. Dysplasia of the atrioventricular ...
Liu J K - - 1997
Orthodontic correction was used to a 12-year-old boy with a mandibular first molar deeply impacted by an odontoma. Following surgical removal of the odontoma, the molar was exposed and brought to a proper position by orthodontic traction. The treatment time was 29 months. After a 20-month follow-up, the molar was ...
Fundarò P - - 1997
This is a selected series of 28 patients with myxomatous mitral regurgitation that underwent correction of the anterior leaflet prolapse caused by chordal elongation by means of a running suture involving the chordal-cusp junction. Postoperative echocardiograms showed correction of anterior leaflet prolapse and mitral regurgitation in all patients. This technique ...
Matsumoto T - - 1997
The purpose of this study was to measure the three-dimensional geometry of scoliosis by using biplane radiographic photogrammetry and to evaluate the flexibility of the deformed spine. Thirty-one patients with idiopathic scoliosis underwent analysis. There was a significant correlation between the degree of the scoliotic angle in the frontal plane, ...
He S - - 1997
BACKGROUND AND AIMS OF THE STUDY: There is growing evidence for mitral leaflet elongation in patients with hypertrophic cardiomyopathy. Such elongation could predispose to systolic anterior motion (SAM) of the mitral valve by increasing leaflet mobility and providing a geometry that promotes this condition. METHODS: To test this postulate, five ...
Zhou L Y - - 1997
Sixty-six cases of rheumatic fever (RF) associated with acute rheumatic carditis (ARC) diagnosed on the basis of the revised Jones criteria (1982) were studied retrospectively (Group I) and prospectively (Group II). Echocardiography in Group I revealed anterior mitral valve prolapse (AMVP) in 28/55 cases (51%), posterior mitral valve prolapse (PMVP) ...
Moriya S - - 1997
We describe a case of dicrotic pulse in a patient who exhibited marked prolapsed aortic cusp without aortic regurgitation. Echo-Doppler in the abdominal aorta showed deep reversal flow confined to early diastole. We conclude that this prolapse was the cause of the steep dicrotic notch and the dicrotic pulse, because ...
Stavem K - - 1997
OBJECTIVE: To assess (1) the agreement between infrared ear thermometry and core reference temperature (in the pulmonary artery). (2) the agreement between measurements in the right and left ears, and (3) the screening validity of infrared tympanic thermometry in detecting rectal fever. DESIGN: Temperatures were measured in both ears with ...
Frackowiak H - - 1997
The caroticobasilar artery was investigated in animals of order Perissodactyla, in species of Equidae family, and in lowland tapir of Tapridae family. It was found that the caroticobasilar artery forms homolateral or bilateral anastomosis between the basilar and internal carotid arteries or in horse and other species of Equidae family ...
Sung H W - - 1996
This study aimed to investigate the physical properties of a porcine internal thoracic artery fixed with an epoxy compound. Fresh and glutaraldehyde-fixed porcine arteries were used as controls. Both the epoxy-fixed and glutaraldehyde-fixed porcine arteries showed significant increases in fixation index and denaturation temperature as compared to the fresh one. ...
Freeman L M - - 1996
OBJECTIVE: To describe the historical, clinical, and echocardiographic findings in Dalmatians with dilated cardiomyopathy (DCM). DESIGN: Retrospective case series. SAMPLE POPULATION: 9 Dalmatians with a diagnosis of DCM and congestive heart failure (CHF), 9 Doberman Pinschers with DCM and CHF, and 9 dogs of other breeds with DCM and CHF. ...
Shafik A - - 1996
BACKGROUND: An electroureterogram (EUG) was identified for the normal ureter (A. Shafik, 1996). It was postulated that the EUG might change under pathologic ureteric conditions. This communication studies the EUG pattern in the obstructed ureter and in the ureter with vesicoureteral reflux. MATERIAL AND METHODS: 11 patients with stricture of ...
Yamanouchi Y - - 1996
BACKGROUND: Multiple factors contribute to an improved defibrillation threshold of biphasic shocks. The leading-edge voltage of the second phase may be an important factor in reducing the defibrillation threshold. METHODS AND RESULTS: We tested two experimental biphasic waveforms with large voltage changes at phase reversal. The phase 2 leading-edge voltage ...
Nouh M S - - 1996
In this study, 103 Saudi males and 172 Saudi females were referred for medical check-up for employment purposes and/or as undergraduate students. Clinical evaluation of all participants included full cardiovascular examination, with the following investigations being performed: ECG, chest x-ray, and cross-sectional echocardiography. Bicuspid aortic valve was detected in three ...
Belcaro G - - 1996
A 6-year follow-up based on an arterial morphology classification defined with an ultrasound assessment of carotid and femoral artery bifurcations was conducted on 2322 asymptomatic subjects. Four morphology classes were considered. When 2000 subjects (86% of total subjects; 1124 males, 876 females) completed a 6-year follow-up, the study was terminated. ...
Joy E - - 1996
In most people, mitral valve prolapse, which affects women more than men, is a benign condition with few or no symptoms. But in some patients it poses a significant problem. Potential sequelae include endocarditis, serious arrhythmia, and sudden death. Although a midsystolic click followed by a late systolic murmur is ...
Malkowski M J - - 1996
Posterior displacement of the mitral valve with billowing into the left atrium has been the major echocardiographic criterion used for the diagnosis of mitral valve prolapse (MVP). However, the current criteria are limited by the influence of hemodynamic factors on the degree of prolapse, whereas complications such as mitral regurgitation, ...
Albo M - - 1996
Pelvic prolapse has a myriad of clinical manifestations ranging from urethral incontinence to total vault prolapse. The evaluation and treatment of these conditions is facilitated by dividing them into three anatomic regions. Anterior vaginal wall prolapse is the most common type and includes simple urethral hypermobility as well as severe ...
Funnell W R - - 1996
The mechanical coupling between the eardrum and the manubrium was studied by means of a finite-element model of the cat eardrum. Previous calculations of the effect of varying the eardrum curvature were extended, demonstrating the critical role of curvature in the behavior of the eardrum. A new procedure was developed ...
Dobrin P B - - 1996
Histometric studies are useful for correlating mechanical properties of tissues with morphological characteristics. However, fixation and embedding can cause volume changes and may cause tissue distortion. This study examined 24 rings of unpressurized arteries fixed with formalin, glutaraldehyde, or McDowell's solution and then embedded in paraffin or glycol methacrylate. A ...
Tavernor S J SJ David Lewis Centre, Cheshire, - - 1996
EEG with co-registered electrocardiography was recorded during at least two interictal epileptiform EEG discharges in each of 11 patients who later suffered from sudden unexpected death in epilepsy (SUDEP), and from another 11 age and sex matched patients, also with uncontrolled tonic-clonic seizures, drawn from the same centre who were ...
Piraccini B M - - 1996
A case of proximal subungual onychomycosis due to Microsporum canis in a 36-year-old woman is presented. The onychomycosis involved the left thumb and the little fingernails, with thinning of the nail plate and crumbling of the nail plate surface. A milky-white discoloration of the proximal portion of the left thumbnail ...
Robinson C J - - 1996
Four preparations of recombinant human sequence epidermal growth factor (EGF), two of the full length 53-amino acid chain, and two of the 52-amino acid chain, lacking the carboxyl-terminal arginine, were evaluated, using a variety of in vitro bioassays and immunoassays, by 12 laboratories in seven countries, for their suitability to ...
Strupp M - - 1995
Bithermal caloric stimulation in a patient with a benign paroxysmal positioning vertigo of the horizontal (lateral) semicircular canal (HC-BPPV) revealed a significant hypoexcitability of the affected ear that was reversible when treated by liberatory maneuvers. Both the positional vertigo and caloric hypoexcitability in HC-BPPV are caused by canalolithiasis, a concept ...
Marr C M - - 1995
Colour flow Doppler echocardiographic examinations were performed on 15 horses; 10 Thoroughbreds and 5 Standardbreds; 9 mares, 5 geldings and 1 stallion; mean +/- s.d. 3.4 +/- 1.1 years. Cardiac murmurs were audible in 12 horses (80%), but these had characteristics consistent with functional murmurs in all horses. A standardised ...
Wu M H - - 1995
OBJECTIVE: The aim was to define the long term prognosis of isolated ventricular septal defect (VSD) with anteriorly malaligned outlet septum. DESIGN: Cohort study. SETTING: University hospital, tertiary medical care centre. PATIENTS: Between July 1986 and June 1993, 63 patients were studied with an isolated VSD and anteriorly malaligned outlet ...
Yip A S - - 1995
A 33-year-old man was investigated for dyspnea on exertion and the presence of a pansystolic murmur. Physical examination revealed dextrocardia confirmed by chest radiograph, which also showed oligemic right lung field. Subsequent cardiac catheterization revealed secundum atrial septal defect, persistent left sided superior vena cava, and severe mitral valve prolapse ...
Kim S J - - 1995
Discoid lateral meniscus in the knee joint is common. From July 1990 through September 1992, the authors performed arthroscopy on 534 symptomatic knee joints. Seventy-seven knees of 72 patients had discoid lateral meniscus. Of the 77 knees treated, 4 (5.5%) had discoid lateral meniscus associated with anomalous insertion of the ...
Devereux R B - - 1995
Mitral valve prolapse (MVP), which occurs in about 3% of adults, is usually a primary, dominantly inherited condition. MVP may be diagnosed by auscultation of a mid-systolic click and late-systolic murmur that move dynamically with postural maneuvers. M-mode echocardiography confirms MVP by demonstrating late-systolic prolapse and two-dimensional echocardiography reveals leaflet ...
Weidenbener E J - - 1995
We sought to evaluate the economic aspects and benefits of adding a limited screening echocardiogram to our annual athletic preparticipation examinations. It was our belief that this screening echocardiogram would add valuable information beyond the history and physical exam alone and could be included in our station-by-station format with little ...
Ross C J - - 1995
The purpose of this study was to compare the effects on pulmonary artery pressure (PAP) measurements of using different anatomical reference points for transducer placement. Supine and 30 degree right and left lateral PAP measurements were examined in a sample of 40 hemodynamically stable post-cardiovascular surgery patients. The anatomical references ...
Mastroroberto P - - 1994
The "association" atrial septal aneurysm and mitral valve prolapse is often asymptomatic with an incidence of about 1% in autopsied adults. Occasionally, however, embolic phenomena can occur. The two-dimensional echocardiography allows an accurate diagnosis of these two cardiac lesions when present. In this paper the Authors report on three patients ...
Rugerio-Vargas C - - 1994
Techniques for impregnation with ammoniacal silver carbonate provide valuable information on all types of tissue; however, the time investment required to impregnate a few sections has limited their application. We have shortened the impregnation times by using microwaves in techniques for reticular fibers, astrocytes, nerve fibers and chromaffin cells. The ...
Vrettos A M - - 1994
We tested the hypothesis that arterial compliance changes during each cardiac cycle, and that these instantaneous changes are beneficial for energy conservation. Using an adaptive identification procedure, we were able to obtain an instantaneous impulse-response representation of the arterial system. By assuming a three-element windkessel model, we obtained the instantaneous ...
Wu M H - - 1994
OBJECTIVES: This study was conducted to determine the longterm prognosis of children with mitral valve prolapse associated with isolated rheumatic mitral regurgitation. BACKGROUND: Rheumatic fever may result in mitral valve prolapse, which sometimes leads to severe mitral regurgitation requiring surgical intervention during the active stage of rheumatic fever. However, the ...
Renshaw M - - 1994
A link between density-dependent larval competition and adult size of the mosquito Aedes cantans was demonstrated in northern England. Ponds containing high larval densities produced smaller larvae which, in turn, resulted in smaller adults at emergence. In both 1989 and 1990, parous mosquitoes caught at human bait were larger than ...
Fantin B - - 1994
We evaluated the in vivo activity and the diffusion of radiolabelled RP 57669 (RPI) and RP 54476 (RPII), the two components of the injectable streptogramin RP 59500, alone or in combination, in aortic vegetations from experimental endocarditis in rabbits. RPI and RPII demonstrated in vitro bacteriostatic and bactericidal synergy against ...
Pueschel S M - - 1994
This study was designed to determine the prevalence of mitral valve prolapse and aortic insufficiency in home-reared, young persons with Down syndrome. Of the 36 individuals (ages 20-32 years) enrolled in this study, 20 had abnormal echocardiographic findings. Thirteen patients had mitral valve prolapse, 3 had both mitral valve prolapse ...
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