Anesthesia and analgesia
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Anesthesia and analgesia · Jan 2020
Multicenter Study Comparative StudyFactors Associated With Failure of Spinal Anesthetic: An 8-Year Retrospective Analysis of Patients Undergoing Elective Hip and Knee Joint Arthroplasty.
The primary outcome of this 8-year retrospective review was the failure of spinal anesthetic (SA) in elective hip and knee joint arthroplasty surgery. Of 3542 SAs, a total of 135 failures were identified (3.8%). Factors associated with increased odds of failure were younger age (odds ratio [OR], 1.03; 95% confidence interval [CI], 1.01-1.05), lower body mass index (BMI; OR, 1.04 [1.01-1.08]), hip arthroplasty (OR, 1.90 [1.28-2.84]) compared to knee arthroplasty, needle insertion at L4-5 (OR, 4.61 [2.02-10.54]) and L5-S1 (OR, 7.66 [2.47-23.7]) compared to L2-3, 22-gauge needle size (OR, 2.17 [1.34-3.52]) compared to 25-gauge needle, and hyperbaric bupivacaine (OR, 1.66 [1.09-2.53]) compared to isobaric bupivacaine.
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Anesthesia and analgesia · Jan 2020
Comparative Study Observational StudyVentilator Mode Does Not Influence Blood Loss or Transfusion Requirements During Major Spine Surgery: A Retrospective Study.
Blood loss during adult spinal deformity surgery is multifactorial. Anesthetic-related factors, such as mode of mechanical ventilation, may contribute to intraoperative blood loss. The aim of this study was to determine the influence of ventilator mode and ventilator parameters on intraoperative blood loss and transfusion requirements in patients undergoing prone position spine surgery. ⋯ In prone position spine surgery, neither mode of mechanical ventilation nor airway pressure is associated with intraoperative blood loss or need for allogeneic transfusion. Use of modern ventilation strategies using lung protective techniques may mitigate differences in blood loss previously observed between PCV and VCV modes.
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Anesthesia and analgesia · Jan 2020
Comparative Study Observational StudyMonitoring Depth of Hypnosis: Mid-Latency Auditory Evoked Potentials Derived aepEX in Children Receiving Desflurane-Remifentanil Anesthesia.
The aepEXplus monitoring system, which uses mid-latency auditory evoked potentials to measure depth of hypnosis, was evaluated in pediatric patients receiving desflurane-remifentanil anesthesia. ⋯ The aepEX can reliably differentiate between a conscious and an unconscious state in pediatric patients receiving desflurane-remifentanil anesthesia.
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Anesthesia and analgesia · Jan 2020
ReviewAtrial Fibrillation: Current Evidence and Management Strategies During the Perioperative Period.
Atrial fibrillation (AF) is the most common arrhythmia in the perioperative period. Previously considered a benign and self-limited entity, recent data suggest that perioperative AF is associated with considerable morbidity and mortality and may predict long-term AF and stroke risk in some patients. ⋯ In addition to managing AF itself, clinicians must also address the hemodynamic perturbations that result from AF to prevent end-organ dysfunction. This review will discuss current evidence with respect to causes, risk factors, and outcomes of patients with AF, and address current controversies in the perioperative setting.
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Anesthesia and analgesia · Jan 2020
Randomized Controlled TrialImpact of Caffeine Ingestion on the Driving Performance of Anesthesiology Residents After 6 Consecutive Overnight Work Shifts.
Residency training in anesthesiology involves care of hospitalized patients and necessitates overnight work, resulting in altered sleep patterns and sleep deprivation. Caffeine consumption is commonly used to improve alertness when fatigued after overnight work, in preparation for the commute home. ⋯ After consuming a caffeinated energy drink on conclusion of 6 shifts of night-float work, anesthesiology residents had improved control of driving performance variables in a high-fidelity driving simulator, including a significant reduction in collisions as well as slightly faster reaction times.