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 purpose of this study is to address the question, "What is the volume of blood for injection at epidural blood patch that most effectively relieves post-dural puncture headache?"
RATIONALE: Placing a stent in the esophagus may lessen swallowing difficulties and improve quality of life in patients with malignant dysphagia caused by esophageal cancer or gastroesophageal junction cancer. PURPOSE: This randomized clinical trial is studying self-expanding plastic stents to see how well they work compared with self-expanding metal stents in treating patients with malignant dysphagia caused by esophageal cancer or gastroesophageal junction cancer.
To demonstrate clinically significant improvements in the patients treated following ASIPP guidelines compared to the patients who were treated prior to the establishment of ASIPP guidelines.
To determine clinically significant improvement in the patients undergoing procedures under fluoroscopy. To evaluate and compare the adverse event profile in both groups
The purpose of this study is to determine whether the timing of the clamping of the umbilical cord after delivery has an impact on neonatal hemoglobin and hematocrit, tests that determine the number of red cells in the blood and their ability to carry oxygen. The study hypothesis is that delaying cord clamping until cord pulsation has ceased will increase the neonatal blood volume and thereby increase the hemoglobin and hematocrit. We propose to recruit 150 women who present for vaginal delivery at Tulsa Regional Medical Center. Half of the women will be randomly assigned to the immediate clamping group, which will entail clamping of the umbilical cord within six seconds of delivery of the fetal shoulders. The other half of the volunteers will be assigned to the delayed clamping group, which will entail clamping the cord after a palpable pulse has ceased, or after 10 minutes. The infants of mothers in both groups will have blood drawn for a hemoglobin and hematocrit at the time of the routine PKU heel stick, usually is performed within 18-24 hours of delivery. Statistical differences between the blood counts of infants in the control and study groups will be compared using independent samples t tests.
This study will determine whether giving estrogen replacement therapy through an estradiol patch can improve ovulation rates in women with spontaneous premature ovarian failure. The ovaries are glands in women that produce female hormones and normally release an egg once a month. In women with spontaneous premature ovarian failure, the ovaries stop working too soon. Women with this disorder have abnormally high levels of leuteinizing hormone (LH) in their blood, which impedes normal ovulation. In some women, estrogen replacement can suppress LH levels to the normal range. Women between 18 and 40 years of age with premature ovarian failure may be eligible for this 4-month study. Participants receive either standard hormone replacement therapy, consisting of an estradiol patch and progestin tablets, or placebo. The placebo group receives patches and tablets that look the same as those for the group with active treatment but they contain no hormone. All participants wear the patch every day and take the tablets the first 12 days of each month. In addition to taking the study drug, participants have blood drawn once a week for the 16 weeks of the study. At the end of the trial, women who were in the placebo group are offered the opportunity to receive the estrogen patch and progestin therapy for another 16 weeks and continue the blood tests to determine if they ovulate on this treatment.
This study involves using both a device that seals the capsular bag (where the lens is located) allowing safer irrigation of the capsular bag and sodium chloride to irrigate the capsular bag during cataract surgery on children. The purpose of this study is to determine if the use of the device, Perfect Capsule, along with sodium chloride reduces the development of posterior capsule opacification (PCO), a possible complication of cataract surgery. PCO is the clouding of the rear portion of the natural membrane or capsule that holds the artificial lens. It requires additional procedures to correct the problem. Sodium chloride is not usually used during cataract surgery. It will be used to irrigate the capsular bag and remove any residual cells that contribute to the development of PCO. Perfect Capsule will prevent the sodium chloride from touching other parts of the eye. The goal of this study is to determine if irrigation with sodium chloride will lower the incidence of PCO after cataract surgery.
The purpose of this study is to integrate Remote Presence technology in order to increase the number of timely patient discharges before 11 am from the medical center.
After obtaining informed consent,80 morbidly obese ASA II-III patients undergoing laparoscopic bariatric surgery procedures would be randomly assigned to one of four study groups at UTSWMC at Dallas.Hemodynamic paarameters, recovery times, postoperative pain scores, the need for rescue analgesics and side effects will be recorded.The purpose of this study is to determine the optimal linfusion rate of dexmedetomidine for maintaining cardiovscular stability during general anesthesia.
Pilot study of continuing aspirin versus switching to clopidogrel after stroke or transient ischemic attack.