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Gonzalez E R - - 1984
With the advent of diagnosis related groups reimbursement schedules, the cost-effectiveness of therapies needs to be assessed. The safety and efficacy of intermittent positive pressure breathing (IPPB) has been controversial. IPPB employs the dilating effects of positive-pressure ventilation to deliver aerosolized particles to small and medium-sized bronchi of patients with ...
Suzuki M - - 1984
The successful total removal of a huge falcotentorial junction meningioma in a 59-year-old woman by biparietooccipital craniotomy with the patient in the sea lion position (prone with a hyperextended neck and with 20 degrees elevation of the upper and lower halves of the body) is reported, with some comments on ...
Minten J - - 1984
The influence of intrathoracic and intraluminal pressure on venous pressure pulse propagation velocity in the superior vena cava was investigated in acute canine experiments. The propagation velocity of distinct points of the venous pressure curve was measured under different conditions of preload, during expiratory and inspiratory apnea and during positive-negative ...
Norman D - - 1984
In a double-blind study of 62 patients, Hexabrix was compared with Conray 60% in cerebral angiography. Both agents were injected into the same patient, the patient serving as his own control, and volumes injected into a single vessel were identical. Considerably less pain was experienced with Hexabrix. Changes in pulse, ...
Hasan F M - - 1984
Because lateral position can be used to locate a pulmonary artery catheter tip in lung regions where venous pressure exceeds alveolar pressure, we studied the effect of lateral position on the correlation between pulmonary artery occlusion pressure (Pw) and left atrial pressure (Pla) at various increments of positive-end expiratory pressure ...
Nagao T - - 1984
The positive inotropic effect of TA-064, (-)-(R)-1-(p-hydroxyphenyl)-2-[(3,4-dimethoxyphenethyl)amino]ethanol, was studied in the anesthetized dog and isolated guinea pig heart. An intravenous administration of TA-064 dose-dependently increased the cardiac contractile force with little effect on blood pressure in dogs. The positive inotropic activity of TA-064 was 1/100 that of isoproterenol and similar ...
Elsass P - - 1984
Ten patients who developed disturbed mental function during respirator weaning were studied. They were investigated during respirator treatment and 1 h after start of spontaneous ventilation with continuous reaction time measurements and clinical ratings. During the spontaneous ventilation the reaction times increased and the patients experienced fatigue. PaCO2 was higher ...
Hauser C J - - 1984
The clinical manifestations and prognosis of peripheral vascular disease (PVD) depend upon the severity of limb hypoxia. Transcutaneous oxygen tension (Ptco2) is related to tissue oxygenation, but limb Ptco2 varies with changes in systemic as well as peripheral oxygen delivery (Do2). Previously we have found that simultaneous assessment of limb ...
Milsom I - - 1984
The circulatory effects of postural change in late pregnancy were investigated in 20 healthy pregnant women. Maximum stroke volume (93.2 +/- 11.9 ml) was recorded with the subject in the left lateral position and was significantly (p less than 0.001) reduced in the supine, right lateral, and lithotomy positions, but ...
Sinclair M E - - 1984
Three techniques of intermittent venous occlusion (an oscillotonometer cuff, pneumatic leggings and an automatic arterial pressure monitoring cuff (Sentinel] were applied to one upper limb of seven healthy male volunteers. Fibrinolytic activity was assessed by the measurement of the euglobulin clot lysis time during a control period followed by 1 ...
Louhevaara V - - 1984
The effects of a filtering device, an air-line breathing apparatus and a self-contained breathing apparatus ( SCBA ) on pulmonary ventilation, oxygen consumption and heart rate were studied in 12 well-trained firemen aged 21-35 years. Their average maximal oxygen consumption (VO2 max) was 64.9 ml X min-1 X kg-1. Sequential ...
Weisman L E - - 1983
Clinical deterioration has been observed in sick neonates during lumbar puncture. This study was done to determine if hypoxemia occurred during lumbar puncture, if hypoxemia was position dependent, if transcutaneous PO2 (TcPO2) monitoring effected hypoxemia, and what possible mechanisms were involved. Twenty-six neonates received lumbar punctures in either a standard ...
Stokes H M - - 1983
Loss of grip is a rateable factor in the determination of permanent disability by compensation boards in some states. Malingerers, or those with psychological rather than organic disability, can voluntarily record lower grip measurements in the so-called injured hand when compared with the normal hand. The purpose here is to ...
Fleming S E - - 1983
The effect of posture on blood pressure measurement in pregnant and non-pregnant subjects was studied. In non-pregnant patients undergoing cardiac catheterization, central blood pressure remained unaltered with a change from the supine to the lateral position. However in all subjects studied, an apparent decrease in both systolic and diastolic blood ...
Fonseca-Costa A - - 1983
Static voluntary efforts, both inspiratory and expiratory (executed with the glottis open against a closed airway) are commonly utilized for the evaluation of correct esophageal balloon positioning for indirect pleural pressure measurement. Agreement between delta Pm (change in mouth pressure) and delta Pes (change in esophageal pressure) indicates the valid ...
Fergusson R J - - 1983
A double-blind crossover trial compared equal doses of nebulized salbutamol delivered with and without intermittent positive pressure breathing (IPPB) in 20 patients admitted to hospital with life-threatening asthma. No significant differences were observed between the two forms of treatment. It was concluded that the use of IPPB to administer nebulized ...
Armstrong D V - - 1983
A premilking phase of positive-pressure pulsation was evaluated by comparing milk production, persistence, peak milk flow, average milk flow, and several indicators of udder health of two groups of high-producing Holstein cows. Forty-four cows, 21 controls and 23 test animals, completed at least 250 days of lactation. After a premilking ...
Eggertsen S C - - 1983
Whether or not intermittent positive pressure breathing (IPPB) is beneficial in the treatment of asthma has been controversial for 30 years. IPPB is expensive and has been associated with pulmonary infection, pneumomediastinum, pneumothorax, and death. The exact factors involved in the observed effectiveness of IPPB remain undetermined. With evidence from ...
Thompson P D - - 1983
Twelve Holstein cows in second halves of lactations were divided into two groups of six each, designated "unstimulated" and "stimulated" groups. Over a preliminary 11 days, all cows were stimulated before each milking by a 1-min hand wash. After this period, premilking preparation and stimulation routines were changed for both ...
Tanabe T - - 1983
The significance of positive ST-T changes during bathing, eating, defecating and urinating was studied in 103 patients with ischemic heart disease using Holter and 12-lead ECG. The incidence of positive ST-T changes was very high in patients with unstable angina (US) and in those with old myocardial infarction (OMI) associated ...
Korvenranta H - - 1983
Intrapleural (Ppl) and intraesophageal pressure (Pes) measurements were compared during spontaneous respiration in sick infants. The Pes, measured with a water-filled catheter, indicates pressure variations in the esophagus to be about 4.5% smaller than in the pleural cavity. However, there is a highly significant linear correlation (r = 0.96, p ...
Flege J E - - 1983
This study examines pressure characteristics of /p/ and /b/ as a function of position with regard to stress and position within the utterance. Eight female talkers produced utterances which varied in length from one to five disyllables ([pápe] or [bábe]). Results demonstrate the importance of utterance position for the magnitude ...
White D J - - 1983
The purpose of this experimental study was to examine blood pressure changes of healthy subjects in response to position changes (from supine to level and head-down side lying) and percussion. Twenty male and 20 female volunteers with a mean age of 25.9 years were divided randomly into four groups so ...
Sayegh F N - - 1983
Ophthalmodynamometry was done by 96 normotensive volunteers and 62 hypertensive patients in sitting and supine position. A high correlation between the brachial and ophthalmic blood pressure was found in both groups, and in both positions. The brachial blood pressure of normotensive subjects did not show any difference in both positions. ...
Iwabuchi T - - 1983
Taking advantage of the exposure of dural sinuses during craniotomies, we measured confluens sinuum pressure by direct catheterization. The influence of various surgical positions and of other factors on confluens sinuum pressure was studied. When the upper half of the body was raised, the confluens sinuum pressure decreased to reach ...
Clark S J - - 1983
Segments of guinea-pig ileum maintained at an intraluminal pressure of 0cm H2O released methionine-enkephalin-like material (ME) into the bathing fluid. Elevation of intraluminal pressure to 5 cm H2O induced peristalsis and reduced ME release both in the absence and presence of naloxone (0.27 microM). Following prolonged distension, tissues developed intermittent ...
Gedda S - - 1983
To determine the nature of the forces responsible for the evacuation of fluid from the peritoneal cavity via a drain we measured the pressure in the subhepatic space after biliary surgery. Pressure in that space increased with inspiration and decreased with expiration. The inspiratory increase was larger in the erect ...
Wittmann J - - 1983
Pressure changes in the air cell and at the egg shell have been used to monitor respiratory and somatic movements of embryonic chicks. During the prehatching period a phase of reduced activity is observed. Pulmonary respiration is initiated during this phase. Exogenous L-thyroxine exerts an accelerating effect on the hatching ...
Gleason C A - - 1983
Inasmuch as spinal taps in preterm infants are frequently accompanied by clinical deterioration, the optimal position for this procedure was investigated. Three positions were each randomly assigned for five minutes to 17 healthy preterm infants without a spinal tap actually being performed: (1) lateral recumbent with full flexion (flexed position), ...
Garber S L - - 1982
Pressure-induced tissue breakdown is a frequent and life-threatening complication for individuals with spinal cord injury. These patients are frequently positioned on their sides to relieve back and sacral pressure while they are in bed. This position causes high trochanteric pressure with the potential for the development of pressure ulcers. In ...
Anderson P B - - 1982
A double-blind crossover study was performed to compare 4 . 8 mg salbutamol given by pressure-packed aerosol and intermittent positive-pressure breathing nebulization in chronic asthmatic patients. The two delivery techniques produced similar changes in respiratory function and pulse rates. Given equal effect, a high-dose pressure-packed aerosol would have advantages in ...
Zidulka A - - 1982
We attempted to see what the effect of position was on the rate of pneumothorax formation. In 6 anesthetized spontaneously breathing dogs in the left decubitus position, a chest tube was inserted into the right hemithorax. A right-sided pneumothorax was induced by percutaneous transthoracic insertion of a 20-gauge needle into ...
Cook A W - - 1982
The sitting prone position is compared with the standard laminectomy prone position and the sitting up position for posterior fossa surgery. We measured central venous pressure and airway pressure with the patient in different positions to determine the comparative efficacy of the sitting prone position. On a linear average, the ...
Smucker M L - - 1982
The proper position of a catheter to measure pulmonary wedge pressure is usually confirmed by measuring the oxygen saturation of withdrawn blood. However, this method of confirmation is tedious and frequently unsuccessful. A fluoroscopic method to confirm proper catheter position to measure wedge pressure was tested. Between 2 and 5 ...
Engles M L - - 1982
Seven fresh cadaveric forearms were studied to investigate the effects of medial and lateral positioning of the pisiform bone on pressure within the carpal tunnel. The wick catheter, a device used to transmit interstitial fluid pressure, was inserted into the carpal tunnels of the cadavers. Pressures in the tunnel with ...
Comer T P - - 1981
A 71-year-old man with a permanent transvenous pacemaker had recent history of lightheadedness and was brought to the hospital emergency room complaining of shortness of breath. His blood pressure was 80/50, pulse rate 148. Administration of a pressor drug restored blood pressure and coincidentally the heart rate returned to 70. ...
Brewer L A LA - - 1981
During World War II, my associates and I observed for the first time in medical history that casualties with severe brain, thoracic, abdominal, and extremity trauma, who had persistent "wet" respiration (wet lung of trauma), were most difficult to resuscitate, withstood operation poorly, and had the highest mortality. The etiology ...
Tabor P S - - 1981
A deep ocean sampler (DOS) has been developed for microbiological sampling and is capable of aseptically collecting 400-ml water samples from any depth in the world oceans. The instrument maintains samples under in situ pressure and temperature. A hyperbaric transfer system has also been developed, enabling transfer of sample volumes ...
Bhutani V K - - 1981
Tracheal dimension, pressure-volume relationships and bulk modulus (K) were determined in excised fetal and adult rabbit tracheal segments before and after application of intermittent positive pressure (IPP) which was 0--25 cm H2O pressure, at 30 cycles/min, and for a duration of 60 min. Both tracheal elastic behavior and dimensions underwent ...
Sébert P - - 1981
Twelve subjects (six men, six women) were studied in resting conditions for simple breath holding (BH) in either the supine or upright position. Ventilation (VT, V, fr) heart rate (fc) and arterial blood pressure (ABP) were recorded or measured in steady state and then transiently during BH and its recovery. ...
Riker J B - - 1980
A 5 percent solution of metaproterenol sulfate (Alupent) and a fixed-combination solution of isoetharine and phenylephrine were compared in a single-dose double-blind study in a total of 27 patients with reversible bronchospastic disease. The patients were assigned to parallel groups for treatment and received the usual dose of 0.3 ml ...
Hanai K - - 1980
Dynamic measurements of intraosseous pressures in lumbar vertebrae were performed to determine the effects of positional change on lumbar vertebral circulation. The data collected are applicable to the question of spinal canal stenosis. The measurements were made in 23 patients, 12 of whom had spinal canal stenosis and 11 of ...
Waxman M B - - 1980
The capacity of deep inspiration and the dependent body position to terminate episodes of tachycardia was studied in 11 patients with recurrent paroxysmal supraventricular tachycardia (PSVT). In eight patients, a deep inspiration and a dependent position repeatedly terminated episodes of PSVT. Reasons for failure were found in the other three ...
Yamazaki S - - 1980
Quantitative studies of cough strength seem to be valuable in evaluating cough dynamics and the effectiveness of various procedures designed to raise the cough force. To evaluate cough strength in 20 patients after thoracotomy intrapleural cough pressures were measured with a balloon catheter inserted in the ipsilateral pleural space toward ...
Groth P - - 1980
The Eustachian tube function of 52 applicants accepted for flight training had earlier been comprehensively tested during simulated flights in a pressure chamber in the sitting position. Despite the fact that all were otologically healthy, the wide range of pressure-equilibrating capacity in the sitting position was even more pronounced when ...
Ieri A - - 1980
We report on a patient without heart disease who had pulsus paradoxus, associated with echocardiographic evidence of abnormal and exaggerated diastolic motion of interventricular septum. Both phenomena appeared at the peak of the inspiratory phase of respiration, and seemed to be produced from the same haemodynamic variations, of which the ...
McCarthy F M - - 1980
The six classic vital signs (blood pressure, pulse, temperature, respiration, height, and weight) are reviewed on an historical basis and on their current use in dentistry. Normal and abnormal vital signs are explored in depth, with special attention to those conditions which can be readily recognized by the dental practitioner ...
Hack A L - - 1980
Protection Factors provided by 25 NIOSH approved supplied-air respirators were determined while the devices were worn by a panel of test subjects anthropometrically selected to represent adult facial sizes. Polydispersed DOP aerosol was used for respirator fit tests on continuous flow, demand, and pressure-demand respirators. Based on facepiece leakage measurements ...
Mond H - - 1980
The Medtronic 6961 unipolar transvenous ventricular lead has four symmetrically placed, small tines that protrude backward just proximal to the tip, and are designed to become entrapped beneath or between right ventricular trabeculae. One hundred leads were implanted. Initially, the leads were more difficult to position at the right ventricular ...
Booth G C - - 1980
A double-walled rubber cylinder, made of cheap, readily available materials, is described. This device enables intermittent positive pressure to be applied to individual fingers during the course of management of post-surgical or post-traumatic finger oedema. It has a number of advantages over the standard total hand splint currently used.
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