Carotid balloon test occlusion (BTO) is used to assess the collateral circulation and cerebrovascular reserve in patients in whom carotid artery occlusion is contemplated. Eight patients in whom the test was successful were evaluated with perfusion computed tomography (CT) in the resting state and after acetazolamide challenge. Three ...

Embolization of a portion of the nidus of an arteriovenous malformation not only may alter hemodynamics within the nidus, but also may change blood flow dynamics in adjacent normal vessels. Sequential acetazolamide-challenge xenon CT cerebral blood flow studies were performed in eight patients before and after embolization of arteriovenous malformations to ...

cortex of eight rats at baseline and after acetazolamide challenge. Trigeminal nerve stimulation.49 � 0.03 mL � min-1 � mL-1 at rest, after acetazolamide challenge, and during trigeminal nerve branch of the trigeminal nerve was stimulated with two stainless steel electrodes. The cathode

We compared three-dimensional time-of-flight MR angiograms obtained before and after acetazolamide administration to evaluate whether use of this drug could improve visualization of small peripheral intracranial arteries and atherosclerotic stenosis. For evaluation of small peripheral arteries, 10 patients with clinical diagnosis of ischemic cerebrovascular disease and 10 ...

The acetazolamide (ACZ) challenge test is a useful clinical tool and a reliable predictor of critically reduced perfusion. In patients with chronic steno-occlusive disease, the ability to maintain normal cerebral blood flow by reducing vascular resistance secondary to autoregulatory vasodilation is compromised. Identification of the presence and degree of ...

To evaluate changes in cerebral hemodynamics and metabolism induced by acetazolamide in healthy subjects, positron emission tomography studies for measurement of cerebral perfusion and oxygen consumption were performed. Sixteen healthy volunteers underwent positron emission tomography studies with 15O-gas and water before and after intravenous administration of ...

Background Arterial spin labelling (ASL) is an MRI technique for measuring perfusion at the brain tissue level. The aim of the study was to investigate cerebrovascular reactivity (CVR) at brain-tissue level in patients with an internal carotid artery (ICA) occlusion by combining ASL-MRI with a vascular challenge, and determine whether the CVR varies within the perfusion ...

Pharmacologic MRI (phMRI) uses functional MRI techniques to provide a noninvasive in vivo measurement of the hemodynamic effects of drugs. The cerebral blood volume change (?CBV) serves as a surrogate for neuronal activity via neurovascular coupling mechanisms. By assessing the location and time course of brain activity in mouse mutant studies, phMRI can provide valuable ...

Analgesic drugs like acetylsalicylic acid, paracetamol, and ibuprofen are frequently used by subjects suffering from headache of acute mountain sickness (AMS). It is not clear if the effect is due to analgesia or prevention of AMS. We performed a randomized controlled clinical trial comparing a low dose of an acetylsalicylic acid analog, calcium carbasalate (380 mg /day), to placebo in a cohort of ...

The role of the ophthalmic artery (OA) as a collateral to the cerebral circulation in carotid occlusive disease is somewhat controversial. The aim of this study was to assess the importance of this collateral by comparing the results of transorbital Doppler ultrasonography and regional cerebral blood flow measurements using SPECT and Xenon-133 inhalation in 41 patients with ...

...2011-04-01 2011-04-01 false Sterile sodium acetazolamide. 522.44 Section 522...NEW ANIMAL DRUGS § 522.44 Sterile sodium acetazolamide. (a) Specifications. Sterile sodium acetazolamide contains...

21 Food and Drugs 6 2010-04-01...2010-04-01 false Sterile sodium acetazolamide. 522.44 ...DRUGS § 522.44 Sterile sodium acetazolamide. (a) Specifications. Sterile sodium acetazolamide contains...

... acute mountain sickness: a prospective, double-blind, randomized, ... Table 2. Effect of lectures on the understanding of acetazolamide's ( ... ...

... Title : Effect of Acetazolamide on Leg Endurance Exercise at Sea Level and Simulated Altitude. Descriptive Note : Journal article. ...

... Title : Effect of Acetazolamide on Isolated Quadriceps Muscle Endurance Performance at Sea Level and During Acute Altitude Exposure. ...

... Accession Number : ADA168074. Title : Acetazolamide and ADH, Renin, Aldosterone, and Water Electrolytes at 4100 M in Man,. ...

... Accession Number : AD0287075. Title : ADDITIVE EFFECTS OF ACETAZOLAMIDE AND FAT EMULSION ON THE AA B(CO2) DIFFERENCE. ...

Increased chemosensitivity to hypoxia and hypercapnia, together with a prolonged circulatory time, are the main determinants of Cheyne-Stokes (C-S) respiration in heart failure. To evaluate the effect of acetazolamide, a carbonic anhydrase inhibitor, on chemosensitivity and respiratory dynamics in patients with heart failure with C-S respiration, 12 patients (mean age 62 � 9 ...

... frequent in porters taking acetazolamide than in the placebo group (P = .0001), but there were no serious side effects. Conclusions.�Acetazolamide was tolerable, but impractical for the ... ...

Acetazolamide (ACZ) was used to stimulate the cerebral vasculature on ten healthy volunteers to assess the cerebral vasomotor reactivity (CVR). We have combined near infrared spectroscopy (NIRS), diffuse correlation spectroscopy (DCS) and transcranial Doppler (TCD) technologies to non-invasively assess CVR in real-time by measuring ...

Acetazolamide increases cerebral blood flow. The generalized and regional changes in blood flow after administration of acetazolamide were evaluated by the xenon-133 inhalation technique in a series of patients with subacute or chronic focal cerebral ischemia. Acetazolamide augmented interhemispheric asymmetry of cerebral blood flow in ...

In this prospective study, brain perfusion reserve was evaluated by Acetazolamide (Diamox) 99m-Tc-HMPAO SPECT in patients clinically suspected for carotid artery stenosis. Consecutive 99m-Tc-HMPAO brain-SPECT investigations were obtained within one hour before and after a dose of 1000 mg Acetazolamide i.v. Studies were performed with a SME 810 ...

... the military views the world and the operational challenges it presents ... An Assessment Millennium Challenge was judged by most participants as a ...

A skeletal variant assay system (SVAS) consisting of a group of 88 spontaneously occurring qualitative variations of the adult mouse skeleton was applied to CD-1 animals that had been exposed in utero to 0, 200, or 1,000 mg/kg/day of the sodium salt of acetazolamide dissolved in distilled water, presented by SC injection of the dam during day 8 or days 9-11 of gestation. Two ...

PurposeTo report on the efficacy of the oral carbonic anhydrase inhibitor (CAI), acetazolamide, in treating macular retinoschisis (RS) in the rare vitreoretinal dystrophy best known as the enhanced S-cone syndrome (ESCS).DesignInterventional case report.MethodsSetting: University-based practice. Patient: A 48-year old Jewish Italian male with clinically, functionally and ...

The cerebral circulation and metabolism of ten preoperative cardiac surgery patients were assessed. Alterations in regional cerebral blood flow (rCBF), measured by 123I-N- isopropyl-p-iodo-amphetamine single-photon emission computed tomography, and in cerebral oxygen metabolism, simultaneously detected by near-infrared spectroscopy (NIRS) before and after ...