Journal of clinical monitoring and computing
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J Clin Monit Comput · Jun 2019
Effect of neuromuscular blockade on transcranial electric motor evoked potentials during surgical correction for idiopathic scoliosis under total intravenous anesthesia.
Transcranial electric motor evoked potentials (TCeMEPs) play an important role in reducing the risk of iatrogenic paraplegia. TCeMEPs could be obviously suppressed by neuromuscular blockade (NMB). The aims of this study were to examine the effects of NMB on TCeMEPs and to determine an appropriate level of partial neuromuscular blockade (pNMB) for TCeMEPs during surgical correction of idiopathic scoliosis under total intravenous anesthesia (TIVA). ⋯ Neither the amplitude and AUC nor the efficacy of TCeMEPs were affected at TOF4-5 of abductor halluces muscles TCeMEPs (AH-TCeMEPs) or at TOF3-5 of tibialis anterior muscles TCeMEPs (TA-TCeMEPs) compared with nNMB. However, the rate of unexpected movement was increased significantly at TOF5 and nNMB compared with TOF1 and TOF4. The application of pNMB with TOFR aimed at 26-50% for AH-TCeMEPs or 16-50% for TA-TCeMEPs seems to be an appropriate regimen for TCeMEPs during surgical correction for idiopathic scoliosis under TIVA.
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J Clin Monit Comput · Jun 2019
Endotracheal catheter equipped with functional cuff produces clinically relevant positive end expiratory pressure: a bench study.
Recently, we developed a novel endotracheal catheter with functional cuff (ECFC). Using such an ECFC and a regular ICU ventilator, we were able to generate clinically relevant tidal volume in a lung model and adult human sized animal. This ECFC allows co-axial ventilation without using a jet ventilator. ⋯ With 14 Fr catheter at respiratory rate 20 bpm, PEEP was 0, 3.9, 9.6, 14.6 cmH2O at preset PEEP 0, 5, 10, 15 cmH2O respectively and tidal volume was up to 188.8 ml. With 19 Fr catheter, PEEP was 0, 3.6, 8.9, 13 cmH2O, at preset PEEP 0, 5, 10, 15 cmH2O respectively and tidal volume was up to 345.3 ml. ECFC enables clinicians to generate not only adequate tidal volume but also clinically relevant PEEP via co-axial ventilation using an ordinary ICU ventilator.
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J Clin Monit Comput · Jun 2019
Change in staff anesthesiologists' opinions of an Anesthesia Information Management System (AIMS).
Following introduction of an Anesthesia Information Management System (AIMS) at a tertiary care, academic health sciences centre, a quality assurance initiative was conducted to assess staff opinions of the AIMS using a previously published, anonymous survey tool at 1 and 5 years following AIMS introduction. At 5 years compared to 1 year after implementation of AIMS, the majority (18 of 24, 75%) of responses to the survey questions had a statistically significant change (P < 0.05) in the proportion of respondents favoring AIMS compared to the 1 year survey. Domains noted to be more favorable 5 years compared to 1 year after AIMS introduction included patient safety in the Operating Rooms and Post-Anesthesia Care Unit, quality of handover and overall documentation, and communication amongst healthcare workers. The ideal time period at which to assess AIMS after introduction is not clear.
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J Clin Monit Comput · Jun 2019
Randomized Controlled TrialValidation of a mobile app for reducing errors of administration of medications in an emergency.
Medication errors occur frequently and are a risk to patient safety. To reduce mistakes in the medication process in emergencies, a mobile app has been developed supporting the calculation of doses and administration of drugs. A simulation study was performed to validate the app as a tool to reduce medication errors. ⋯ The probability of giving an "accurate" dosage was increased from 77.7 (70.9-84.5%) in control scenarios to 93.9 (90-97.8%) in app scenarios. Calculation errors were the main cause for wrong dosing. The app is an appropriate and feasible tool to reduce calculation and handling errors and may increase patient safety.
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J Clin Monit Comput · Jun 2019
Observational StudyTracheal sounds accurately detect apnea in patients recovering from anesthesia.
Apnea should be monitored continuously in the post anesthesia care unit (PACU) to avoid serious complications. It has been confirmed that tracheal sounds can be used to detect apnea during sedation in healthy subjects, but the performance of this acoustic method has not been evaluated in patients with frequent apnea events in the PACU. Tracheal sounds were acquired from the patients in the PACU using a microphone encased in a plastic bell. ⋯ The log-var apnea detection algorithm detected apnea with 92% sensitivity, 98% specificity, 46 PLR and 0.08 NLR. The performance of apnea detection in the PACU using the log-var tracheal sounds method proved to be reliable and accurate. Tracheal sounds could be used to minimize the potential risks from apnea in PACU patients.