View clinical trials related to Anesthesia, Spinal.
Filter by:This prospective observational study aimed to obtain ultrasound images for ultrasound-assisted paramedian spinal anesthesia and identify the differences according to sidedness of approach, position and age.
The study will compare between preprocedural ultrasonography and the conventional palpation technique for spinal anesthesia in obese parturients undergoing elective cesarean delivery
Ultrasound has emerged as an useful tool for neuraxial blockade. The aim of this study is to compare the efficacy and safety between the midline approach and paramedian approach for ultrasound-assisted spinal anesthesia in adult patients.
Spinal anesthesia can be challenging in patients with lumbar scoliosis or previous lumbar spine surgery. This study aims to evaluate whether the use of the ultrasound-assisted spinal anesthesia reduces the number of passes required to successful dural puncture compared with the conventional surface landmark-guided technique in patients with abnormal spinal anatomy.
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.
Multiple passes and attempts during spinal anesthesia might be associated with a greater incidence of paraesthesia, postdural puncture headache, and spinal hematoma. We hypothesized that the use of a preprocedural ultrasound-assisted paramedian technique for spinal anesthesia in patients with old age would reduce the number of passes required to entry into the subarachnoid space when compared with the landmark-guided paramedian approach. The study participants will be randomized into group L (landmark-guided) and group U (ultrasound-assisted). In group L, spinal anesthesia will be performed via paramedian approach using conventional landmark palpation technique. In group U, a preprocedural ultrasound scan will be used to mark the needle insertion site, and spinal anesthetic will be done via the paramedian approach.
Intravenous infusion of dexmedetomidine during procedure was known to be associated prolonged duration of spinal anesthesia. In patients receiving dexmedetomidine infusion during procedure, it has been not evaluated whether use of adjuvant intrathecal fentanyl had additional prolonging effect on duration of spinal anesthesia or not. Therefore, the investigators planned this trial to compare clinical outcomes in patients receiving spinal anesthesia with heavy bupivacaine only and heavy bupivacaine plus fentanyl adjuvant.
The study is aimed at evaluating whether ultrasound pre-procedural scan with Accuro may reduce needle redirections when performing spinal injection in patients with BMI = or > 30 in orthopedic surgery
The purpose of this study is to determine which postoperative analgesia is optimal after colorectal surgery. The investigators will compare intrathecal morphine, continuous epidural analgesia and standard systemic analgesia. All patients will have the possibility to administer themselves intravenous morphine as needed.
Under the hypothesis that dexmedetomidine sedation would result in less upper airway obstruction, we evaluated the occurrence of upper airway collapse or the requirement of airway intervention in patients with obstructive sleep apnea during dexmedetomidine or propofol sedation.