Articles: general-anesthesia.
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J Clin Monit Comput · Dec 2023
Evaluation of the effectiveness of analgesia nociception index (ANI) predictability for surgical stimuli under personal analgesic sufficiency status (PASS) measured by pre-tetanus-induced ANI: a pilot study.
The Analgesia Nociception Index (ANI) is a promising monitor to evaluate the balance of nociception and anti-nociception based on heart rate variability. This prospective, interventional, monocentric pilot study aimed to verify the effectiveness of the personal analgesic sufficiency status (PASS) measured by pre-tetanus-induced ANI variation for surgical stimuli. After Ethics approval and informed consent, participants were anesthetized with sevoflurane and increased effect-site concentrations of remifentanil step by step (2, 4, 6 ng ml-1). ⋯ The PASS under pre-tetanus-induced ANI identification didn't meet the analgesic needs under surgical stimuli. Further investigations are required to provide a reliable prediction of individualized analgesia by objective nociception monitors. Trial registration NCT05063461.
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Observational Study
Quantification of muscle tone by using shear wave velocity during an anaesthetic induction: a prospective observational study.
The quantitative assessment of muscle stiffness or weakness is essential for medical care. Shear wave elastography is non-invasive ultrasound method and provides quantitative information on the elasticity of soft tissue. However, the universal velocity scale for quantification has not been developed. The aim of the study is to determine the shear wave velocities of abdominal muscle during anesthetic induction and to identify methods to cancel the effects of confounders for future development in the quantitative assessment of muscle tone using the universal scale. ⋯ The present study suggested that the SWV as reference was 1.79 m/s and that the SWVs at rest and opioid-induced rigidity were ~ 10% and ~ 30% increase from the reference, respectively. The SWV adjusted for the subcutaneous fat thickness may be scale points for the assessment of muscle tone.
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Background and Objectives: Impaired cognition and pain after surgery contribute to prolonged hospital stays and increased mortality rates. Thus, the development of preemptive algorithms for reducing their impact should be prioritized. The main objectives of the present study were to evaluate the efficiency of using virtual reality (VR) to treat postoperative cognitive decline and pain perception. ⋯ Moreover, the patients' age, surgery duration, level of education, and social status influenced the MMSE score at 24-48 h after surgery. Conclusions: Even if using VR does not alleviate short-term postoperative cognitive impairments, it could affect pain perception. Further studies are needed to support the use of VR in perioperative contexts.
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Randomized Controlled Trial Multicenter Study
Effect of dexamethasone and ramosetron on the prevention of postoperative nausea and vomiting in low-risk patients: a randomized, double-blind, placebo-controlled, multicenter trial.
Several studies have investigated the effect of antiemetics on postoperative nausea and vomiting (PONV) in high-risk groups. However, few studies have investigated the effect of antiemetics in patients at low risk of developing PONV. ⋯ The combination of dexamethasone and ramosetron demonstrated a superior effect in preventing PONV for 48 h after surgery under general anesthesia than saline in patients at low risk of developing PONV. Compared with saline injections, ramosetron injections yielded better outcomes for the incidence of PONV and the use of rescue antiemetics and rescue analgesics 0-1 h postoperatively.
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There is no consensus regarding how best to measure postoperative quality of recovery after anesthesia/surgery (e.g., using 24-hour survey instruments) in veterans or active military. Our goals were to (1) describe health-related quality-of-life (HRQoL) and recovery across time in veterans, (2) examine the commonality between the quality of recovery (QoR-15) and short-form (SF) surveys (including the SF-8, 24-hour version), and (3) examine the responsiveness of these surveys. ⋯ QoR-15 and SF-8 have high content commonality and performed similarly in veterans across time. SF-8 has added benefits of (1) brevity, (2) assessment of physical and mental health components, and (3) being normed to the general population. The SF-8, if used without the QoR-15 in tandem in future study of anesthesia-related outcomes, would need to be supplemented by separate questions addressing postoperative nausea/vomiting (a frequent outcome after anesthesia that is relevant to same-day and next-day mobilization after elective joint replacement surgery).