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Impact of Chloroprocaine on the Eligibility for Hospital Discharge in Patients Requiring Ambulatory Surgery Under Spinal Anesthesia: An Observational Multicenter Prospective Study.

ABSTRACT: INTRODUCTION:This observational study was designed to assess the use of spinal anesthesia with chloroprocaine in the context of ambulatory surgery. METHODS:A prospective, multicenter, observational study was carried out among 33 private or public centers between May 2014 and January 2015 and adult patients, scheduled for a short ambulatory surgery under spinal anesthesia with chloroprocaine. The primary outcomes were anesthetic effectiveness, defined as performance of the whole surgical procedure without any additional anesthetic agent, and the time to achieve eligibility for hospital discharge. Secondary outcomes were the effect of chloroprocaine on motor and sensory blocks, patients' satisfaction, and the use of analgesics in the first 24 h after surgery. RESULTS:Among the 615 enrolled patients, 56% were male, the mean age was 47.2?±?15.2 years, and most patients had an ASA (American Society of Anesthesiologists) status of 1 (63.7%). Main surgical procedures performed were orthopedic (62.6%) and gynecologic (16.1%), and the mean duration of surgery was 26.7?±?16.7 min. The overall anesthetic success rate was 93.8% (95% CI [91.5%; 95.6%]) for the 580 patients with available data for primary criteria. The failure rate was lower than 7% for all surgical procedures, except for gynecologic surgery (14.8%; 95% CI [8.1%; 23.9%]). The average times of eligibility for hospital discharge and effective discharge were 252.7?±?82.7 min and 313.8?±?109.9 min, respectively. The time of eligibility for hospital discharge is defined as the recovery of the patient's normal clinical parameters and the time of effective discharge is defined as the time for the patient to leave the hospital after surgery. Eligibility for patient's discharge was achieved more rapidly in private than public hospitals (236.3?±?77.2 min vs. 280.9?±?80.7 min, respectively, p?

SUBMITTER: Capdevila X

PROVIDER: S-EPMC6979446 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Impact of Chloroprocaine on the Eligibility for Hospital Discharge in Patients Requiring Ambulatory Surgery Under Spinal Anesthesia: An Observational Multicenter Prospective Study.

Capdevila Xavier X Aveline Christophe C Delaunay Laurent L Bouaziz Hervé H Zetlaoui Paul P Choquet Olivier O Jouffroy Laurent L Herman-Demars Hélène H Bonnet Francis F

Advances in therapy 20191211 1

<h4>Introduction</h4>This observational study was designed to assess the use of spinal anesthesia with chloroprocaine in the context of ambulatory surgery.<h4>Methods</h4>A prospective, multicenter, observational study was carried out among 33 private or public centers between May 2014 and January 2015 and adult patients, scheduled for a short ambulatory surgery under spinal anesthesia with chloroprocaine. The primary outcomes were anesthetic effectiveness, defined as performance of the whole su ...[more]

PMID: 31828611

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Project description:BackgroundThe ideal local anesthetic for use in ambulatory spinal anesthesia is safe, with minimal adverse effects, and of a duration that does not impede post-anesthesia care unit (PACU) discharge. Since its approval for use in spinal anesthesia in Europe in 2012, chloroprocaine has seen a resurgence. Recent studies have investigated the safety and efficacy of preservative-free chloroprocaine for use in spinal anesthesia, but few provide the incidence of adverse events such as urinary retention and transient neurologic symptoms.Questions/purposesWe sought to assess the safety of chloroprocaine for spinal anesthesia, including the incidence of adverse events and the duration and quality of its use, in the initial 6 months of its use at our institution. We hypothesized that chloroprocaine would provide effective spinal anesthesia for orthopedic cases of short duration, with a low rate of complications.MethodsWe conducted a retrospective chart review of all patients from June to December 2016 at our institution who had ambulatory knee arthroscopy or foot procedures in which chloroprocaine spinal anesthesia was used. For all 445 charts analyzed, data were collected on anesthesia characteristics, office visits, nursing PACU assessment, and nursing post-operative day 1 follow-up phone calls.ResultsThe median chloroprocaine dosage was 44 mg (interquartile range [IQR], 40 to 50). The median duration of sensory block was 156 min (IQR, 128 to 189) and of motor block was 148 min (IQR, 123 to 181). Time to ambulation was 186 min (IQR, 158 to 218) and time to meeting of discharge criteria was 218 min (IQR, 189 to 250). The most common adverse events in the PACU were bradycardia and hypotension. No patients had urinary retention or transient neurologic symptoms.ConclusionsIn 6 months of use at our institution, chloroprocaine provided safe and effective spinal anesthesia for short orthopedic procedures, with no incidence of transient neurologic symptoms, neuropraxia, or urinary retention.

Project description:INTRODUCTION:Available short-acting intrathecal anesthetic agents (chloroprocaine and prilocaine) offer an alternative to general anesthesia for short-duration surgical procedures, especially ambulatory surgeries. Factors determining the choice of anesthesia for short-duration procedures have not been previously identified. METHODS:This observational, prospective, multicenter, cohort study was conducted between July 2015 and July 2016, in 33 private or public hospitals performing ambulatory surgery. The primary objective was to determine the factors influencing the choice of anesthetic technique (spinal or general anesthesia). Secondary outcomes included efficacy of the anesthesia, time to hospital discharge, and patient satisfaction. RESULTS:Among 592 patients enrolled, 309 received spinal anesthesia and 283 underwent general anesthesia. In both study arms, the most frequently performed surgical procedures were orthopedic and urologic (43.3% and 30.7%, respectively); 66.1% of patients were free to choose their type of anesthesia, 21.8% chose one of the techniques because they were afraid of the other, 16.8% based their choice on the expected ease of recovery, 19.2% considered their degree of anxiety/stress, and 16.9% chose the technique on the basis of its efficacy. The median times to micturition and to unassisted ambulation were significantly shorter in the general anesthesia arm compared with the spinal anesthesia arm (225.5 [98; 560] min vs. 259.0 [109; 789] min; p = 0.0011 and 215.0 [30; 545] min vs. 240.0 [40; 1420]; p = 0.0115, respectively). The median time to hospital discharge was equivalent in both study arms. In the spinal anesthesia arm, patients who received chloroprocaine and prilocaine recovered faster than patients who received bupivacaine. The time to ambulation and the time to hospital discharge were shorter (p < 0.001). The overall success rate of spinal anesthesia was 91.6%, and no significant difference was observed between chloroprocaine, prilocaine, and bupivacaine. The patients' global satisfaction with anesthesia and surgery was over 90% in both study arms. CONCLUSIONS:Patient's choice, patient fear of the alternative technique, patient stress/anxiety, the expected ease of recovery, and the efficacy of the technique were identified as the main factors influencing patient choice of short-acting local anesthesia or general anesthesia. Spinal anesthesia with short-acting local anesthetics was preferred to general anesthesia in ambulatory surgeries and was associated with a high degree of patient satisfaction. TRIAL REGISTRATION:ClinicalTrials.gov identifier NCT02529501. Registered on June 23, 2015. Date of enrollment of the first participant July 21, 2015.

Project description:IntroductionSpinal anesthesia is utilized as an alternative to general anesthesia in infants for some surgeries. After spinal anesthesia, infants often become less conscious without administration of sedative medications. The aim of this study was to assess electroencephalographic (EEG) correlates after spinal anesthesia in a cohort of infants.Patients and methodsThis pilot study included 12 infants who underwent spinal anesthesia. Unprocessed electroencephalography was recorded. The electroencephalogram was interpreted by four neurologists. Processed analyses compared electroencephalogram changes 30 min after spinal anesthesia to baseline.ResultsFollowing spinal anesthesia, all 12 infants became sedated. Electroencephalography in all 12 demonstrated Stage 2 sleep with the appearance of sleep spindles (12-14 Hz) in the frontal and central leads in 8/12 (67%) of subjects. The median time to onset of sleep spindles was 24.7 interquartile range (21.2, 29.9) min. The duration of sleep spindles was 25.1 interquartile range (5.8, 99.8) min. Voltage attenuation and background slowing were the most common initial changes. Compared to baseline, the electroencephalogram 30 min after spinal anesthesia showed significantly increased absolute delta power (p = 0.02) and gamma power (p < 0.0001); decreases in beta (p = 0.0006) and higher beta (p < 0.0001) were also observed. The Fast Fourier Transform power ratio difference for delta/beta was increased (p = 0.03). Increased coherence was noted in the delta (p = 0.02) and theta (p = 0.04) bandwidths.DiscussionSpinal anesthesia in infants is associated with increased electroencephalographic slow wave activity and decreased beta activity compared to the awake state, with appearance of sleep spindles suggestive of normal sleep. The etiology and significance of the observed voltage attenuation and background slowing remains unclear.ConclusionsThe EEG signature of infant spinal anesthesia is distinct from that seen with general anesthesia and is consistent with normal sleep. Further investigation is required to better understand the etiology of these findings. Our preliminary findings contribute to the understanding of the brain effects of spinal anesthesia in early development.

Dataset Information

Impact of Chloroprocaine on the Eligibility for Hospital Discharge in Patients Requiring Ambulatory Surgery Under Spinal Anesthesia: An Observational Multicenter Prospective Study.

Publications

Impact of Chloroprocaine on the Eligibility for Hospital Discharge in Patients Requiring Ambulatory Surgery Under Spinal Anesthesia: An Observational Multicenter Prospective Study.

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