Acetazolamide
Mostrando 13-24 de 157 artigos, teses e dissertações.
-
13. Effect of acetazolamide on cerebral blood flow and cerebral metabolic rate for oxygen.
The aim of this study was to evaluate the effect of acetazolamide on cerebral blood flow (CBF) and cerebral metabolic rate for oxygen (CMRO2). CBF, arterial and jugular venous partial O2 pressure, partial CO2 pressure, pH, and O2 saturation percentage were measured in six patients before and 3 and 20 minutes after intravenous administration of 1 g of acetazo
-
14. Comparison of the effect of acetazolamide tablets and sustets on diurnal intraocular pressure in patients with chronic simple glaucoma.
Twenty patients with primary open-angle glaucoma uncontrolled on single topical therapy completed a double dummy crossover study to compare acetazolamide tablets with a sustained release formulation (Sustet). The two preparations were equally effective, but no direct relationship was found between the intraocular pressure and the plasma concentration of acet
-
15. Acetazolamide or dexamethasone use versus placebo to prevent acute mountain sickness on Mount Rainier.
Eighteen climbers actively ascended Mount Rainier (elevation 4,392 m) twice during a randomized, double-blind, concurrent, placebo-controlled, crossover trial comparing the use of acetazolamide, 250 mg, dexamethasone, 4 mg, and placebo every 8 hours as prophylaxis for acute mountain sickness. Each subject was randomly assigned to receive placebo during one a
-
16. Cardiorespiratory effects induced by acetazolamide on the ventromedullary surface of the cat.
1. Inhibition of carbonic anhydrase by acetazolamide in alpha-chloralose-anaesthetized cats, in a region of the brain stem co-extensive with the glycine-sensitive area, intermediate chemosensitive area, and probably C1 catecholaminergic neurones produces hypotension, bradycardia and depression of the central respiratory drive. 2. These responses are concentr
-
17. Effect of acetazolamide and amiloride against sodium metabisulphite-induced bronchoconstriction in mild asthma.
BACKGROUND--Inhaled frusemide but not bumetanide, another loop diuretic, reduces bronchial responsiveness to sodium metabisulphite (MBS). To investigate whether the effect of frusemide could be mediated through mechanisms other than Na+/K+/Cl- cotransporter inhibition, the effects of amiloride--an inhibitor of sodium channels in the airway epithelium--and of
-
18. Changes in the surface features of choroid plexus of the rat following the administration of acetazolamide and other drugs which affect CSF secretion.
The surface of the choroid plexus of the rat was examined by scanning electron microscopy before and after administration of acetazolamide and other drugs (cardiac glycosides and pilocarpine) which affect the rate of secretion of the CSF. In control animals, bleb-covered cells were more common on the IVth ventricle choroid plexus than on the lateral ventricl
-
19. Acetazolamide on the ventral medulla of the cat increases phrenic output and delays the ventilatory response to CO2.
1. Acetazolamide (0.1 mM) applied to the surface of the rostral ventrolateral medulla or microinjected beneath the medullary surface in chloralose-urethane-anaesthetized, vagotomized, carotid-denervated, paralysed, servo-ventilated cats produced a long-lasting increase in integrated phrenic nerve activity. 2. Extracellular pH measured beneath the rostral ven
-
20. Reduction of macular oedema by acetazolamide in patients with chronic iridocyclitis: a randomised prospective crossover study.
Thirty patients with cystoid macular oedema secondary to chronic iridocyclitis were enrolled in a two period, prospective, randomised, double masked, crossover study that compared sustained release acetazolamide (500 mg twice a day) with a placebo to measure the effects on the reduction of cystoid macular oedema and improvement of visual acuity. All patients
-
21. Treatment with acetazolamide of brain-stem and spinal paroxysmal disturbances in multiple sclerosis.
Nine cases of multiple sclerosis with paroxysmal disorders were treated with acetazolamide. In most cases a brain-stem origin of the seizures was suggested by their particular pattern: crossed syndromes (facial spasm associated with contralateral weakness of the arm and leg, paroxysmal paraesthesiae in one side of the face and weakness of the contralateral l
-
22. Randomised, double blind, placebo controlled comparison of ginkgo biloba and acetazolamide for prevention of acute mountain sickness among Himalayan trekkers: the prevention of high altitude illness trial (PHAIT)
Objective To evaluate the efficacy of ginkgo biloba, acetazolamide, and their combination as prophylaxis against acute mountain sickness.
BMJ Publishing Group Ltd..
-
23. Effects of Acetazolamide on Proximal Tubule Cl, Na, and HCO3 Transport in Normal and Acidotic Dogs during Distal Blockade
It has been suggested that the establishment of a tubular fluid to plasma chloride gradient in the late proximal tubule by the reabsorption of bicarbonate (and other anions) in the early proximal tubule is responsible for a significant part of sodium chloride and water reabsorption in the proximal tubule. In the present study the effects of acetazolamide on
-
24. Prevention of acute postoperative pressure rises in glaucoma patients undergoing cataract extraction with posterior chamber lens implant.
Acute elevations in intraocular pressure (IOP) commonly follow extracapsular cataract extraction and lens implant in glaucoma patients. Thirty six patients with glaucoma undergoing cataract extraction and posterior chamber lens implantation received one of three treatments. Group 1: 500 mg of Diamox Sustets (acetazolamide) 1 hour preoperatively (10 patients)