There are about 173942 clinical studies being (or have been) conducted in United States. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The scientific objectives of this study are to systematically study the problems that are created by incising the attachment of the temporalis muscle in a randomized group of patients, and to determine whether another approach that does not detach the temporalis muscle results in less post-operative morbidity. Cutting through the attachment of the temporalis muscle to the skull is a widely-accepted procedure used to gain access to the skull prior to the drilling used for a pterional craniotomy (one of the most frequent types of surgeries used in neurosurgical practice). Despite the frequent use of this maneuver and the known sequelae of temporalis mobilization (e.g. post-operative myofascial pain, temporalis weakness, and pain with mastication), very little is known about the true incidence of these post-operative symptoms. Furthermore, there is very little objective evidence at the present time to support the claim that the incidence and severity of these post-operative phenomena can be decreased with use of an osteoplastic craniotomy (a procedure where the temporalis is left attached to the bony calvarium). The investigators would like to evaluate whether this slightly more time-consuming and technically demanding approach is less morbid in this respect than the contemporary pterional approach. Special note is made that the osteoplastic approach has been used in standard neurosurgical practice for quite some time.
This study will evaluate the hypothesis that the administration of intraventricular tPA reduces the rates of cerebral vasospasm and ventriculoperitoneal shunt-dependent hydrocephalus in patients with aneurysmal subarachnoid hemorrhage.
To determine the efficacy of cryoablation alone in patients with paroxysmal atrial fibrillation who have been pretreated with dofetilide and converted from persistent atrial fibrillation.
The hypothesis of this study is that by facilitating reverse atrial remodeling with maintenance of sinus rhythm in the weeks preceding ablation makes it feasible to perform a simple pulmonary vein isolation (PVI) with results equivalent or superior to more complex atrial ablation for patients with persistent AF.
Our objective is to assess whether pre-treatment with a fixed dose of insulin, based on weight, given to pregnant patients with gestational or preexisting diabetes receiving betamethasone can provide adequate glycemic control. Our hypothesis is that pre-treatment with a weight-based calculated insulin dose will help maintain euglycemia for pregnant patients with gestational and preexisting diabetes after steroid administration, and possibly impact length of hospital admission.
This will be a single center, open label, crossover study to evaluate the safety and tolerability of multiple dose levels of SQ109.
The purpose of this study is to determine whether therapy that has been shown to be beneficial for mitochondrial diseases is also beneficial for Chronic Fatigue Syndrome (CFS) patients. This study is a chart review of previous CFS patients who received daily conditioning exercise, a high protein diet and nutraceutical therapy (ENT). Prescribed nutraceutical supplements included alpha-lipoic acid, acetyl-L-carnitine, omega-3fatty acids (maxDHA), coenzyme Q10 (CoQ10), plus a multivitamin. Twelve CFS male and female patients between the ages of 20-70 years will be recruited to participate in this pilot study. Subjects will be eligible to participate if they meet the criteria for CFS of the Centers for Disease Control and Prevention (CDC). These include persistent, unexplained fatigue for at least 6 months, concurrent with four of the following: impaired memory/concentration, sore throat, new headaches, unrefreshing sleep, muscle pain, multi-joint pain, tender lymph nodes, and post-exertional malaise.
This procedure allows patients to use the Humanitarian Use Device, IBV® Valve System.
Comparison of peripheral IV catheters inserted by ultrasound using the long axis vs. the short axis technique. Our hypothesis is that long axis ultrasound placement will increase the longevity of the IV catheter.
The objective of the study is to determine the effects of different anesthetic agents on cognitive function in patients with Alzheimer's disease (AD). The investigators will test the hypothesis that anesthesia with desflurane or propofol, compared to isoflurane or sevoflurane, will have less of an effect on post-operative cognitive dysfunction in patients with AD.