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Results 451 - 500 of 508
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Van Meerhaeghe X - - 1986
The diagnostic value of different parameters derived from the Doppler velocity curve recorded at the ankle was analysed in a population of 432 subjects. To document the presence or absence of obliterative arterial diseases in the lower limbs, systolic blood pressure measurements were made and oscillography before and after exercise ...
Holdich T A - - 1986
Transcutaneous oxygen tension (TcPO2) was monitored during maximal exercise in 10 patients with stable moderate to severe claudication. The TcPO2 fell by 16% at the onset of claudication and 32% at the maximum walking distance. On resting this decrease reached a maximum of 66% roughly four minutes after exercise. This ...
von Knorring J - - 1986
ECG monitoring during treadmill exercise testing was performed in a prospective series of 105 consecutive patients with intermittent claudication scheduled for peripheral vascular surgery. ECG monitoring during the exercise test was useful in predicting perioperative cardiac complications. In 55 patients with evidence of coronary artery disease by history and ECG ...
Ohgi S - - 1986
Subjective evaluation of hemodynamics by stress tests in claudicants should be made to establish severity of functional ischemia. As an indispensable examination of vascular laboratory, non-invasive, simple methods can only satisfy methodological conditions. The aim of this study was to apply the transcutaneous oxygen tension measurement for a non-invasive, continuous ...
Pomrehn P - - 1986
Intermittent claudication, leg pain during a graded exercise test (GXT), and resting systolic pressures in the upper and lower extremities were recorded as indicators of peripheral arterial disease at visit 2 of the Lipid Research Clinics (LRC) Prevalence Study. Systolic pressures of the upper and lower extremities were measured in ...
Bounameaux H - - 1985
Ketanserin, a serotonin2-receptor blocker, was administered intravenously (10 mg) to 10 patients suffering from unilateral intermittent claudication in a double-blind, placebo-controlled, cross-over design. The acute effect of the drug was studied by doppler systolic pressure (SP) measurements at arm and ankle at rest (10 min after injection) and after exercise, ...
Stallworth J M - - 1985
Cystic adventitial disease of the popliteal artery has been recognized as a cause of arterial stenosis and calf claudication for 30 years. It is reported infrequently and its etiology remains unknown. In addition, a peculiar geographic distribution of the reported cases of this disorder has been noted, with a majority ...
Spittell J A JA - - 1985
The most common cause of intermittent claudication is atherosclerotic occlusive arterial disease. Differentiation of the common musculoskeletal and neurologic conditions that may mimic intermittent claudication is often possible with a careful history, but when insufficient detail is provided or multiple conditions exist, the findings on physical examination and noninvasive studies ...
Nemeth-Coslett R - - 1985
As part of a continuing series of studies to investigate the variables controlling various topographical aspects of cigarette smoking, the present study examined the extent to which cigarette rod length influenced smoking. Cigarette smoking was examined under conditions in which subjects smoked cigarettes they could not see. Both puff volume ...
McMurray R G - - 1985
The purpose of this investigation was to evaluate the effect of passive smoke inhalation on submaximal and maximal exercise performance. Eight female subjects ran on a motor driven treadmill for 20 min at 70% VO2max followed by an incremental change in grade until maximal work capacity was obtained. Each subject ...
Zenker H J - - 1985
Fluorescein angiographies were performed in 65 patients with peripheral uveitis. 34 subjects (52%) showed pathologic dye transit of the peripheral choroid. Fluorographic evidence of retinal involvement was high (91%), preferentially consisting in leakages from capillaries and venules. Fluorescein angiography was able to detect minute lesions and corresponded with the activity ...
Brincat M - - 1984
Menopausal flushing can be considered as an intermittent loss of peripheral vasomotor control. Thermal entrainment testing has been used to assess the degree of peripheral vasomotor control in a preliminary study of seven women receiving oestrogen replacement therapy in the form of percutaneous cream. Significant improvement was demonstrated in the ...
Schanzer H - - 1984
Twenty-seven patients (40 extremities) with chronic venous insufficiency and 30 controls (60 extremities) were studied using noninvasive measurements of foot volume (foot mercury strain-gauge plethysmography [FMSGP]). Tests were performed with exercise (sitting) and with elevation (Trendelenburg), with and without tourniquets, to evaluate muscle pump efficiency and valvular competence. Empiric venous ...
Byrne P - - 1984
Transcutaneous tissue oxygen tension (PtcO2) was evaluated as a noninvasive diagnostic test for peripheral arterial insufficiency; PtcO2 was measured at rest, during exercise, and following exercise at three leg sites in 36 controls and 138 patients with exercise-induced leg pain. Resting foot PtcO2 differed significantly in controls and in patients ...
Blackshear W M WM - - 1984
Exercise tolerance testing has wide application in the detection and quantitation of lower-extremity claudication. Serial follow-up after operative or nonoperative therapy permits an accurate, objective assessment of the course of the disease in each limb. Unmasking of occult aortoiliac disease, identification of pseudoclaudication, and assessment of the relative contribution of ...
Killewich L A - - 1984
Patients with chronic iliofemoral venous obstruction may develop severe thigh pain and a sensation of tightness with vigorous exercise (venous claudication). The discomfort requires 15 to 20 minutes to subside. In the seven patients studied the venous capacitance (VC) and venous outflow (VO) are lower than those of the unaffected ...
Matsen F A FA - - 1984
Transcutaneous PO2 measurements have been shown previously to reflect local cutaneous oxygen delivery in patients with severe peripheral arterial insufficiency. In the present studies, transcutaneous PO2 measurements indicated that exercise of the involved extremity lowered cutaneous oxygen delivery in patients with moderate peripheral arterial insufficiency (claudication). These exercise-related changes in ...
Hughes J A - - 1984
Continuous measurements of transcutaneous oxygen tension (tcPO2) were made in 23 patients with radiological evidence of emphysema, at rest and during a maximal progressive exercise test. tcPO2 during the final phase of exercise was compared with tcPO2 at rest; the mean change (exercising minus resting value) in tcPO2 (delta tcPO2) ...
Cronenwett J L - - 1984
We reviewed the clinical course of 91 men with mild intermittent claudication who had been followed up for at least six months without operation. During 2.5 years' mean follow-up, 60% of the patients had more severe claudication. Actuarial analysis revealed an annual mortality of 4.5% and an annual operation rate ...
Sepkovic D W - - 1984
Cigarette smokers were assessed for customary smoking behavior and then were assigned a cigarette which was 0.4 mg higher or lower in nicotine and after 4 weeks, were returned to their customary brand. Biochemical indices of smoking behavior including blood carboxyhemoglobin (COHb), plasma nicotine, cotinine and thiocyanate (-SCN) were measured ...
West R J - - 1984
Twenty-six smokers took part in a study which examined subjective and physiological effects of switching to an ultra-low yielding cigarette (0.1 mg nicotine) for 10 days. Subjects were randomly assigned to one of two groups. One group continued smoking their usual brand while the other group switched to the low ...
Pillar D G - - 1983
An independent primary dose counter or totalizer has been developed for our linear accelerator. This counter is reset independently of the control console and thus will totalize the number of monitor units (MUs) delivered to the patient. This is especially useful for patients being treated at extended distances when it ...
Lindhagen A - - 1983
After-exercise thermography (AET) has been claimed to be a means of detecting deep venous insufficiency. The question was studied in 167 patients four to five years after major surgery. The tests af follow-up included AET, strain-gauge plethysmography and venous pressure measurements in addition to clinical examination and a questionnaire concerning ...
Tibbs D J - - 1983
Clinical methods and directional Doppler velocimetry applied to superficial veins have been used to study 527 patients with venous disorders in the lower limbs. Phlebography assisted by the image intensifier has been carried out in 80 of these patients. All examinations have been done with the patient upright, exercising, and ...
Hauser C J - - 1983
In order to develop transcutaneous oxygen tension (PtcO2) measurements into a practical method for assessing peripheral vascular disease, the relationships between extremity and chest wall PtcO2 were examined in subjects with and without systemic atherosclerotic disease. The ratio of extremity to chest PtcO2, or transcutaneous regional perfusion index (RPI) assessed ...
Quick C R - - 1982
One hundred and twenty-four limbs in patients suffering from intermittent claudication were studied over 10 months. Changes in ankle pressure and treadmill exercise tolerance over the period were compared between two groups, one of patients who continued to smoke (group 1) and the other of those who gave up (group ...
Perez-Reyes M - - 1982
Marihuana cigarettes containing 1.32%, 1.97%, and 2.54% delta 9-tetrahydrocannabinol (THC) were smoked by six experienced marihuana users at weekly intervals in a double-blind cross-over design under laboratory conditions. Puff duration, number of puffs taken, duration of inhalation holding, interval between puffs, and duration of smoking were recorded for each cigarette ...
Griffiths R R - - 1982
In a residential research ward, cigarette smoking was studied during 12-hr daily sessions in seven volunteer human subjects with histories of regular smoking. Puff-to-puff delivery of cigarette smoke was held relatively constant by instructing and monitoring subjects in taking uniform puffs and by specifying and timing the duration of holding ...
Maass U - - 1982
Exercise and post-exercise metabolism was studied in the legs of 6 healthy individuals without arterial occlusive disease and in 34 patients with intermittent claudication. Venous blood from the popliteal vein was taken intermittently by regional catheterization during and after an exhaustive constant load exercise on a treadmill. Change of lactate ...
Harris J P - - 1981
During a 5-year period (1975 to 1980), 44 patients underwent femorofemoral bypass for unilateral disabling claudication caused by iliac atheroocclusive disease. All patients had complete Doppler arterial examination performed pre- and postoperatively, including segmental thigh and ankle pressure and calculation of an ankle/brachial (A/B) index for each limb. In 37 ...
Keagy B A - - 1981
The systolic ankle pressure response to thigh cuff occlusion (reactive hyperemia test) was compared with a similar measurement after treadmill exercise in 48 limbs of 24 normal volunteers. The reactive hyperemia test was then performed on 26 legs in 16 patients with clinical evidence of arterial disease of the leg ...
Berglund B - - 1981
The reproducibility of pain limited exercise time (ET) and heart rate (HR) have been evaluated in repeated treadmill exercise tests in 24 patients with arterial occlusive disease of the lower limbs and intermittent claudication. The protocol includes a walking speed of 1 m/s and load increments of 10 watt/min and ...
Mueller-Heubach E - - 1981
This study determined the validity of transcutaneous Po2 (tcPo2) versus Pao2 determinations in the sheep fetus. In 7 fetal lambs catheters were placed in the carotid artery and the trachea, and ECG leads and a tcPo2 electrode were attached. Intermittently determined Pao2 values were compared to continuously recorded tcPo2 values. ...
Massey E W - - 1981
Intermittent claudication in the lower extremities is often manifested in either of two treatable forms, i.e., neurogenic or vascular. A thorough history and examination are necessary to distinguish between these two types. The main differential point is whether pain (vascular type) or a neurologic deficit (neurogenic type) develops as the ...
Wilkins R B - - 1980
Lacrimal sac calculi are a common and often unrecognized cause of chronic epiphora. Of 94 consecutive dacryocystorhinostomies, 16 lacrimal calculi were found. Symptoms were consistent with lacrimal obstruction and were unresponsive to previous probings and antibiotics. Dacryoliths may be suspected by their intermittent symptoms and by the inconsistent findings at ...
Clifford P C - - 1980
Twenty-one patients (19 men and two women) with disabling exercise-related leg pain attended a physiotherapy department on one afternoon each week for an exercise training programme lasting one month. The clinical diagnosis of intermittent claudication and localisation of the atherosclerotic occlusions were confirmed in all but one case by pulse ...
De Villiers J C - - 1980
Patients with pain or discomfort in the legs during exercise which is relieved by rest should not automatically be labelled as having intermittent claudication due to vascular insufficiency; the greatest imitator of this condition is radiculopathy associated with a narrow lumbar spinal canal. Problems involved in differentiating the neurogenic and ...
Schonfeld T - - 1980
Transcutaneous oxygen tension (tcPO2) was compared with simultaneous arterial oxygen tension (PaO2) in 3 normal young adults and 4 pediatric lung disease patients at rest and during exercise to assess the usefulness of tcPO2 monitoring during exercise stress testing. At rest, the regression coefficient of tcPO2 on PaO2 was 0.78 ...
Laing S P - - 1980
The fall in ankle systolic pressure after exercise serves as an objective indicator of the severity of haemodynamically important peripheral arterial disease. Twenty-six patients were studied to establish the effects of different work loads on the pressure response and to develop a test to standardise these effects. The patients walked ...
Bartoli V - - 1980
To test the hypothesis of a myofascial component in intermittent claudication, 56 male patients were studied. Calf blood flow, at rest and during postischemic and postexercise hyperemia, presence of trigger areas, and exercise tolerance were evaluated and compared. The results can be summarized as follows: The exercise tolerance is reduced ...
Dorigo B - - 1980
Blood flow in the calf was measured during postexercise hyperemia in normal subjects and in PAD patients by means of a foot ergometer that gives direct reading of the work performed. In normals, first and peak flow increased with the rise of work load up to 100 KGM. The duration ...
Aronstam A - - 1979
The transfusion requirements of 75 adolescents with severe haemophilia A were studied during the five-year period 1973-77. The annual incidence of the 4935 episodes studied increased by a factor of 2.2 while the number of transfusions rose by a factor of 2.5 and the amount of therapeutic material used during ...
Dorigo B - - 1979
The blocking of trigger points in the calf by the local injection of an anesthetic agent was performed in 15 patients with intermittent claudication. Reactive and exercise hyperemia, work load and duration of exercise were recorded before and after infiltration of the trigger points. Reactive hyperemia does not change, but ...
Bartoli V - - 1979
Reactive and exercise hyperemia were compared in healthy men and in patients with PAD. In both patients and normals the calf blood flow of reactive hyperemia was recorded after a 5-minute ischemia. Exercise hyperemia was measured in normals after variable work loads (30 and 50 kg) and immediately after the ...
Vanhoutte P M - - 1979
Intermittent claudication is a non-pathognomic symptom elicited by an inbalance between the metabolic demands of the exercising skeletal muscle and its blood supply. In normal conditions hyperemia to the working muscles will be impaired during the exercise by mechanical compression of the microvessels. The resulting anaerobic metabolism will cause further ...
Baker J D - - 1978
Postocclusion reactive hyperemia and isolated leg exercise were evaluated as techniques for functional evaluation of lower extremity arterial insufficiency by comparing them with treadmill exercise. Sixty patients with claudication and six normal subjects were evaluated. Changes in Doppler ankle pressures were measured after each form of stress. With substantial occlusive ...
Staunton H P - - 1978
A case is reported of a patient who presented with coital cephalgia, and in whom an obstructive lesion of the lower aorta was demonstrated. Bicycle ergometry evoked an abnormal pressor response. The condition was cured by restoration of normal circulation. An abnormal pressor response to treadmill exercise was shown to ...
Krompecher T - - 1978
The use of new methods and an appropriate apparatus has allowed us to make successive measurements of rigor mortis and a study of its evolution in the rat. By a comparative examination on the front and hind limbs, we have determined the following: (1) The muscular mass of the hind ...
Sørlie D - - 1978
Mechanisms for increased claudication distance following physical training were studied in ten patients with peripheral arterial insufficiency. The exercise capacity on a bicycle ergometer increased by an average of 26% after 3--4 months of training (P less than 0.05). Neither maximum lower leg blood flow during the exercise test nor ...
Angelides N - - 1978
Simultaneous clearance of 99Tcm from the gastrocnemius and quadriceps muscles has been studied in 74 limbs of 62 patients with claudication and in 20 normal limbs of 15 volunteers. The local decay curve for 10 min at rest and for 20 min after a 3-min treadmill walk at 4.5 km/h ...
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