75 Clinical Trials for Various Conditions
This study is a prospective, double-blind prospective randomized controlled trial comparing mepivacaine and bupivacaine spinal anesthesia for same-day discharge readiness following a unilateral primary elective TKA procedure. Study data will be collected during the patient's hospital stay for their TKA procedure, and the primary outcome of same-day discharge readiness will be assessed the day of surgery. Patients will also be contacted at Day 3 post-op to assess for any complications, current level of pain, and pain medication utilization.
The following obstetric procedures are commonly performed with spinal anesthesia on labor and delivery: bilateral tubal ligation, external cephalic version, cerclage insertion, cerclage removal, minimally invasive fetal surgery, and evacuation of retained products of conception. Bupivacaine is currently the standard spinal medication for these procedures because of its long history of safe use, its low incidence of transient neurologic symptoms, and its ability to provide a dependable, dense block with a high degree of maternal satisfaction. While bupivacaine has the aforementioned advantages, it unfortunately has a long duration of action, up to 240-380 minutes, which far exceeds the time necessary to complete most obstetric procedures. Clorotekal®, the first Food and Drug Administration approved chloroprocaine solution created for spinal injection, is a potential alternative. When compared with bupivacaine spinals, chloroprocaine spinals have been shown to facilitate clinically significant shorter times to resolution of motor and sensory block, first ambulation, micturition, and discharge readiness. The objective of this study is to determine if a strategy of spinal anesthesia with chloroprocaine will reduce the duration of motor block, compared with equivalent block with hyperbaric bupivacaine..
The purpose of this study is to determine if a shorter-acting spinal anesthetic called mepivacaine has advantages over a longer-acting medication called bupivacaine.
Several studies have shown that adding dexmedetomidine or epinephrine to single-dose spinal analgesia preparations improves the length and/or speed of onset of the sensory block and post-operative pain management without increased negative side effects. To date, however, no study has compared adjunctive intrathecal dexmedetomidine to adjunctive intrathecal epinephrine in single-dose spinal analgesia. The purpose of this study is to determine if adjunctive intrathecal dexmedetomidine is non-inferior to adjunctive intrathecal epinephrine in providing better single-dose spinal analgesia during cesarean section.
The use of 1% Chloroprocaine (PF) spinal anesthesia will reduce the recovery times and discharge time of patients undergoing hemorrhoidectomies as compared to 0.75% bupivacaine spinal. The primary objective is to compare the recovery times (return of motor and sensory function) and discharge time (voiding time) between 2-Chloroprocaine and 0.75% bupivacaine spinal anesthesia for hemorrhoidectomies. This is a randomized, prospective study assigning patients to either 2-Chloroprocaine (PF) or 0.75% bupivacaine spinal anesthesia group.
Surgical repair of hip fractures may be performed with various anesthetic techniques, but are most commonly completed under general anesthesia (GA) or neuraxial anesthesia (NA). Numerous prospective and retrospective studies demonstrate improved morbidity and mortality when NA is used; however, many surgeons prefer the use of GA with neuromuscular blockade (NMB) due to the perception of better operative conditions. This study aims to compare the operative conditions obtained from the use of combined GA and spinal with NMB vs. the use of GA with spinal without NMB. 84 patients will all receive a single shot spinal and GA and then will be randomized to receive either NMB or placebo. The fracture reduction time will be measured.
Pain control after cesarean delivery is associated with improved breastfeeding and infant rooming-in times. In addition, inadequate analgesia leads to elevated plasma catecholamine concentrations, which negatively affect every organ system. There is growing evidence that ketamine, N-methyl-D-aspartate receptor antagonist, is efficacious when used as an adjuvant in postoperative pain control. A 2006 Cochrane Collaboration systemic review and meta-analysis concluded, "Ketamine in subanesthetic doses....is effective in reducing morphine requirements in the first 24 hours after surgery." Ketamine's prolonged analgesic effect, despite its short half-life and its use in low doses, is theorized to be due to blockade of spinal cord central sensitization. Central sensitization is a phenomenon whereby repeated painful stimulus leads to more severe pain perception over time despite no change in the intensity of the painful stimulus.Ketamine may also prevent the development of acute opioid tolerance. Ketamine's analgesic effects have also demonstrated in the obstetric population. Post-cesarean delivery morphine requirements in women who received ketamine as part of a general anesthesia technique were decreased. Similary, low-dose ketamine in conjunction with bupivacaine-only spinal anesthesia reduced postoperative analgesic requirements compared to bupivacaine-only spinal anesthesia and bupivacaine-fentanyl spinal anesthesia. In the United States, healthy women scheduled for elective cesarean delivery commonly receive spinal anesthesia with bupivacaine-fentanyl-morphine. To our knowledge, IV ketamine has not been studied as an adjuvant to this regimen in the analgesic management in post-cesarean delivery patients. Multimodal therapy for postoperative pain control is widely practiced due to the advantage it provides in blocking multiple pain pathways while minimizing side effects of each individual pain medication. We hypothesize that low dose intravenous ketamine will improve multi-modal post-cesarean analgesia compared to placebo. The purpose of this study is to evaluate this hypothesis and study the possible side effects of this regimen in combination with bupivacaine-fentanyl-morphine spinal anesthesia.
The purpose of this study is to compare the effect of albumin versus routine care on hemodynamic response and stability in pre-eclamptic patients during cesarean delivery. The hypothesis is that volume replacement with albumin guided by stroke volume variation (SVV) using a ClearSight-Acumen (CS-A) monitor, before cesarean delivery (CD), improves hemodynamic stability in preeclamptic patients with severe features compared to routine care, under neuraxial anesthesia.
This study compares general anesthesia and spinal anesthesia for vNOTE tubal sterilization. A direct comparison of these methods has not been done before for this surgical approach. Investigators will aim to compare the two methods to determine the differences in perioperative complications, postoperative pain, postoperative nausea and vomiting, and the time to get the patient ready for discharge from the recovery room.
Although the current standard for lumbar puncture and spinal anesthesia is the use of manual palpation of surface landmarks to identify the correct interspace, performance of the procedure at too high of a level may increase the incidence of adverse effects. The current study will evaluate the efficacy of ultrasound in identifying the correct intervertebral space for lumbar puncture thereby improving the safety of the procedure.
Test the safety and effectiveness of training medical officers in the provision of spinal anesthesia in a rural hospital context using a non-inferiority randomized trial. The safety and effectiveness of the MOs will be evaluated through a non-inferiority trial in which patients are randomized to care by a trained MO or an anesthesiologist. The primary outcomes are safety (adherence to adapted anesthesia safety checklist- see supporting documents "Adapted Anesthesia Safety Checklist") and effectiveness (adequate analgesia) of spinal anesthesia.
Spinal anesthesia is commonly utilized for hip replacement surgery. Different medications used for spinal anesthesia work for different lengths of time. This study will compare three different spinal anesthesia medications in patients having hip replacement surgery to see if patients are able to get out of bed and walk earlier after surgery with one medication versus the others.
The purpose of this study will be to evaluate and compare patients undergoing total knee arthroplasty (TKA) with sensor guidance versus that of a standard technique. Each patient will be assessed for the difference between passive, soft tissue controlled, pressure balance and muscle activated pressure balance.
After injection of the spinal anesthetic drug, women will be allowed to lie down immediately (0-30 sec) or after three minutes (180 sec) of sitting. The incidence of maternal hypotension and fetal umbilical cord blood pH will be recorded.
Multiple studies have compared spinal anesthetic performed supine versus lateral, with varying results, in parturients having elective cesarean section. Needle positioning during spinal placement has also been examined. No positioning techniques have demonstrated definitive superiority for hemodynamic stability. Investigators propose that following spinal placement in the sitting position if the patient is placed in a lateral position for 90 seconds prior to turning them supine, hemodynamic changes caused by sympathectomy related to the subarachnoid block can be avoided. This is the first study to examining the influence of position changes after spinal anesthetic placement in the sitting position, which includes hemodynamic variables not previously studied including cardiac output, TPR (total peripheral resistance) and pulse pressure variation (PPV).
This study aims to determine whether or not spinal anesthesia with the local anesthetic drug, chloroprocaine, wears off faster than the local anesthetic drug, bupivacaine, and results in faster discharge from the post-anesthesia care unit after surgery.
Spinal anesthesia is commonly used in patients undergoing total hip replacements. The purpose of this study is to compare lidocaine to bupivacaine spinal anesthesia in patients having a total hip arthroplasty (THA). The objective of this study is to compare the two spinal anesthesia treatments in regards to transient neurological symptoms (TNS).
The aim of this study is to evaluate the effect of perioperative music on maternal anxiety, hemodynamic response to spinal anesthesia, postoperative pain medication requirement, and overall maternal satisfaction. Investigators hypothesize that women exposed to perioperative music will have greater overall satisfaction with the delivery experience. Investigators also hypothesize that perioperative music will lower anxiety levels of women having a scheduled cesarean delivery, result in a less profound degree of spinal-induced hypotension prior to cesarean delivery, and result in a lower requirement of analgesics postpartum.
The purpose of the study is to compare the risk of being unable to urinate shortly after surgery, also called acute post-operative urinary retention (POUR) between spinal and general anesthesia in women who undergo outpatient pelvic organ prolapse with stress urinary incontinence surgery.
The purpose of this study is to investigate whether the addition of a medication called epinephrine to spinal medications prolongs the duration of the anesthesia. The medication standardly used in spinal anesthesia is a local anesthetic (bupivacaine) and an opiate pain medication (morphine). These medications typically last about 2 hours. The investigators want to determine if adding epinephrine to the spinal medications prolongs the anesthetic without side effects. A longer duration of anesthesia may be useful in prolonged repeat cesarean section. Epinephrine is known to prolong the action of some local anesthetics, but the investigators want to specifically study combining it with the medications the investigators use regularly for cesarean section. You may qualify to take part in this research study because you are having a repeat cesarean section. Repeat cesarean sections sometimes last longer than 2 hours. The investigators want to determine if epinephrine will prolong the anesthetic.
The purpose of the study is to determine if a medication called phenylephrine, which helps to control blood pressure, is more effective as a continuous intravenous (IV) infusion compared to continuous IV norepinephrine in maintaining blood pressure during a spinal anesthetic for a cesarean delivery. Good blood pressure control has been shown to decrease nausea and vomiting during and after cesarean delivery under spinal anesthesia. For elective cesarean delivery, all participants will receive spinal anesthesia with a local anesthetic and morphine (provides long term pain control after cesarean delivery). This study plans to enroll 80 pregnant research subjects 18 years and above. Patients will be randomly assigned according to a computer generated system to be in one of two groups.
The investigators intend to study the impact of patient positioning on the changes in blood pressure after spinal anesthesia for cesarean delivery. The investigators hypothesized that the changes in blood pressure relate to the speed with which the spinal medication rises. By slowing the rise of spinal anesthesia, the investigators believe that the incidence and severity of hypotension might be reduced.
Three different regimens of phenylephrine are being evaluated to see if one is superior over the other in the maintenance of cardiac output while keeping normotension and/or treating hypotension experienced when receiving spinal anesthesia for cesarean delivery.
The purpose of the study is to learn more about how the heart works during cesarean delivery under spinal anesthesia (medicines given in the spine that numb parts of your body to block pain) in women. The investigators would like to find out if the information about the heart can help in treating blood pressure changes that occur during the cesarean delivery. The investigators would also like to find out if this information can help reduce the chances of nausea and vomiting during the cesarean delivery. The activity of the heart changes during spinal anesthesia and cesarean section. In the past, a sensor placed directly into the heart was the only way to see how the heart worked. Currently, there are monitors that can sense the heart's activity via sensors that are placed on the skin during cesarean delivery. In this study, the investigators will use the ICON cardiac output (ICON) monitor. The ICON monitor is approved by the US Food and Drug Administration (FDA) to monitor (check) the activity of your heart. This study aims to: 1. Determine if additional cardiac output measurements help anesthesiologists maintain appropriate hemodynamics as defined as within 20% of baseline BP and if it changed their choice of vasopressors (primary outcome). 2. Determine if additional cardiac output measurements help to decrease the incidence of nausea and vomiting during cesarean delivery (secondary outcome).
The proposed study intends to investigate several aspects of the respiratory effects of intravenous sedation of patients undergoing spinal anesthesia for knee replacement surgery. The study will include assessment of PaCO2 during the intraoperative period. PaCO2 is expected to be elevated as a result of intravenous sedation and postural factors. Further, the study will investigate how application of Nasal Continuous Positive Airway Pressure (N-CPAP) may impact PaCO2.
A study measuring utility of indwelling bladder catheter placement in orthopaedic surgical patients receiving spinal anesthesia. Study will track clinical outcomes, patient satisfaction and cost efficacy. Absence of indwelling bladder catheter may decrease urinary tract infection (UTI) incidence, increase patient satisfaction, and decrease cost burden without increasing postoperative urinary retention (POUR) incidence.
Our goal was to compare the number of attempts to perform spinal anesthesia using real-time ultrasound guidance versus landmark technique in patients meeting predefined criteria for difficult spinal anesthesia.
The investigators hypothesize that given prophylactically, intravenous ondansetron will attenuate the drop in blood pressure and heart rate frequently seen after spinal anesthesia. Eighty-six American Society of Anesthesiologists (ASA) physical status I or II in preoperative patient assessment, parturients age of 18 to 45 years scheduled to undergo elective caesarean section will be enrolled. Patients will be randomized to 2 groups: the ondansetron group, receiving 8 mg intravenous ondansetron diluted in 10 mL of saline; or the placebo group, who were administered 10 mL of saline given 5 minutes prior to performing the spinal anesthetic. Investigational Pharmacy will randomize and dispense study drug. Baseline measurements of vital signs will be taken. Otherwise standard management will then be used: * Patients must be NPO for 8 hours * Pulse oximetry, EKG monitoring, noninvasive blood pressure at a minimum of every 3 minutes, more frequently if decided by the provider. * Standard lumbar puncture in a sitting position the L3-L4 or L4-L5 * Whitacre pencil-point, 25 gauge * Injectate: 2 mL of 0.75% hyperbaric bupivacaine, 100 mcg preservative free morphine, 20 mcg fentanyl * Immediately after completing the subarachnoid injection, patients will be laid supine with left lateral uterine displacement The sensory level of anesthesia will be assessed in the standard fashion every five minutes using ice. The motor component will tested using the Bromage scale for spinal anesthesia (0, no paralysis; 1, inability to lift the thigh \[only knee/feet\]; 2, inability to flex the knee \[only feet\]; 3, inability to move any joint in the legs).
The investigators are interested in determining the utility of ultrasound of the spine for labor epidurals or spinal anesthesia for women in labor or having a cesarean delivery. The investigators hypothesized that in women with poor spinal landmarks that the use of ultrasound of the spine will improve the process of placing labor epidurals or spinal anesthetics
The purpose of this study is to compare two methods for preventing low blood pressure associated with spinal anesthesia during Cesarean sections.