Acta Anaesthesiologica Taiwanica

Publisher: Taiwan ma zui yi xue hui, Elsevier

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  • Other titles
    ScienceDirect
  • ISSN
    1875-4597
  • OCLC
    403625075
  • Material type
    Document, Periodical
  • Document type
    Journal / Magazine / Newspaper, Computer File

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Elsevier

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Publications in this journal

  • [show abstract] [hide abstract]
    ABSTRACT: Tapia's syndrome and pressure alopecia (PA) are two rare but distressing complications associated with orotracheal intubation and positioning of the head during surgery. To our knowledge, simultaneous occurrence of both complications after surgery has not been previously reported. To avoid these disturbing complications, the mechanisms of the injury and the preventive measures should be recognized by anesthesiologists and surgeons. We herein present the case of Tapia's syndrome together with PA following open septorhinoplasty under uncomplicated endotracheal general anesthesia in a 27-year-old man. We review other case reports and discuss the potential underlying mechanisms of injury.
    Acta Anaesthesiologica Taiwanica 01/2014;
  • [show abstract] [hide abstract]
    ABSTRACT: Current literature lacks systematic data on acute perioperative pain management in neonates and mainly focuses only on procedural pain management. In the current review, the neurophysiological basis of neonatal pain perception and the role of different analgesic drugs and techniques in perioperative pain management in neonates are systematically reviewed. Intravenous opioids such as morphine or fentanyl as either intermittent bolus or continuous infusion remain the most common modality for the treatment of perioperative pain. Paracetamol has a promising role in decreasing opioid requirement. However, routine use of ketorolac or other nonsteroidal anti-inflammatory drugs is not usually recommended. Epidural analgesia is safe in experienced hands and provides several benefits over systemic opioids such as early extubation and early return of bowel function.
    Acta Anaesthesiologica Taiwanica 01/2014;
  • [show abstract] [hide abstract]
    ABSTRACT: Introduction Etomidate is a hypnotic drug widely used as an intravenous anesthetic induction agent. The incidence of etomidate-induced myoclonus has been reported as much as 50–80% after induction making it an undesirable drug for induction. Objective Our aim is to use a priming dose of atracurium to suppress etomidate-induced myoclonus during induction of anesthesia. Method In a double-blinded clinical trial 80 patients were randomly given either atracurium (20% of ED95 × kg) or saline as a priming agent. Then, induction of anesthesia was performed using 0.4 mg/kg etomidate. Age, weight, body mass index, bispectral index (BIS) monitor, and duration and grade of myoclonus were recorded. Results The demographic characteristics, age, body mass index, BIS score, and weight were not significantly different between the atracurium (ATRA) priming group and control groups. The binomial regression model showed that BMI was an independent predictor variable for myoclonus (OR: 2.1, CI 95%: 1.7–7.5, p = 0.032). In this model, adjusted odds ratios (OR) of myoclonus (Multivariate Logistic Regression analysis) in the control group was 6.6 (95% CI: 1.5–9.7, p = 0.013). Conclusion Low-dose atracurium priming could effectively suppress etomidate-induced myoclonus.
    Acta Anaesthesiologica Taiwanica 01/2014;
  • [show abstract] [hide abstract]
    ABSTRACT: Anesthesia for magnetic resonance imaging (MRI) requires special equipment that can be used in the presence of a magnetic field. Endotracheal tube and various laryngeal mask airway devices have a variable quantity of ferromagnetic material in the pilot balloon that could reduce image quality and result in artifacts. The i-gel is a reliable, easily inserted airway device, and causes minimal interference in image quality. We used i-gel in 10 anaesthetized adult patients undergoing MRI. The quality of image, evidence of airway, tongue, and dental trauma were assessed throughout the procedure. All scans were diagnostically adequate. Therefore, we concluded that i-gel causes the least ferromagnetic interference compared with other devices and improves the quality of imaging and produces minimal artifact while scanning.
    Acta Anaesthesiologica Taiwanica 01/2014;
  • [show abstract] [hide abstract]
    ABSTRACT: Background We aimed to compare the efficacy of a new bedside screening test named acromioaxillosuprasternal notch index (AASI) with modified Mallampati (MMP). Methods A total of 603 adult patients, who were candidates for tracheal intubation in elective surgery, were enrolled in this prospective study. Preoperative airway assessment was carried out with AASI and MMP. The new AASI score is calculated based on the following measurements: (1) using a ruler, a vertical line is drawn from the top of the acromion process to the superior border of the axilla at the pectoralis major muscle (line A); (2) a second line is drawn perpendicular to line A from the suprasternal notch (line B); and (3) the portion of line A that lies above the point where line B intersects it is line C. AASI is calculated by dividing the length of line C by that of line A (AASI = C/A). After induction of anesthesia, the laryngeal view was recorded according to the Cormack–Lehane grading system. Receiver operating characteristic curve analysis was employed to compare between AASI and MMP. Results Difficult visualization of larynx (DVL, Cormack–Lehane III and IV) was observed in 38 (6.3%) patients. The best cutoff point for DVL was defined at AASI > 0.49. AASI had a lower false negative rate and higher predictive values (sensitivity, positive predictive value, and accuracy) in comparison with MMP. Conclusion AASI was associated with higher predictive values than MMP and could be used for estimation of DVL.
    Acta Anaesthesiologica Taiwanica 01/2014;
  • [show abstract] [hide abstract]
    ABSTRACT: Coagulopathy is common in patients with end-stage liver disease requiring liver transplantation (LT). Thromboelastography (TEG) test results are used for analyzing coagulation data and making a decision about the transfusion requirements. However, whether it is necessary to correct the abnormal coagulation profile during LT is a matter of considerable debate. Herein, we report our experience with two patients who had LT without blood product transfusion despite TEG results showing abnormal coagulation data. The TEG was performed four times during LT. Although blood product transfusion was necessary according to the TEG guidelines, it was avoided. At the end of operation, the hemoglobin level was 8.5 g/dL and 9.5 g/dL for Patient 1 and Patient 2, respectively. The patients tolerated LT well and their subsequent recovery was uneventful. We suggest that TEG should be used cautiously to make a decision about blood transfusion, as it can be totally avoided in selected cases involving living donor LT.
    Acta Anaesthesiologica Taiwanica 01/2014;
  • [show abstract] [hide abstract]
    ABSTRACT: Introduction Low-dose ketamine infusion (blood concentration around 100 ng/mL) during surgery reduces the incidence of postoperative shivering after remifentanil-based anesthesia. We hypothesized that perioperative infusion of very low-dose ketamine (blood concentration around 40 ng/mL) during remifentanil-based anesthesia may also prevent the development of remifentanil-induced shivering during the 2-hour period after the end of anesthesia. Materials and methods Fifty female patients scheduled to undergo laparoscopic cystectomy or oophorectomy were assigned to one of two groups: (1) ketamine group, in which the patients received ketamine infusion (0.1 mg/kg/hour) from induction of anesthesia to emergence from anesthesia; and (2) control group, in which the patients received saline infusion from induction up till emergence from anesthesia. Anesthesia was induced and maintained by target-controlled infusion of propofol (estimated blood concentration: 2–4 μg/mL) and infusion of remifentanil, at 0.2–0.3 μg/kg/minute. Patients were observed for shivering from the end of anesthesia to 120 minutes after anesthesia. The time point at which the patient began to shiver was recorded and assigned to one of four time periods: at emergence, from emergence to 30 minutes after anesthesia, from 30 minutes to 60 minutes after anesthesia, and >60 minutes after anesthesia. Results During the 120-minute observation period, the number of patients who shivered was higher in the ketamine group than the in control group (18 vs. 8, ketamine group vs. control group, p = 0.01). The time period during which patients began to shiver was different between the two groups (1 patient, 4 patients, and 13 patients vs. 3 patients, 2 patients, and 3 patients at emergence, from emergence to 30 minutes, and from 30 minutes to 60 minutes after anesthesia, respectively; ketamine group vs. control group, p = 0.007). Conclusion Intraoperative infusion of very low-dose ketamine during remifentanil-based anesthesia may increase the incidence of postoperative shivering.
    Acta Anaesthesiologica Taiwanica 01/2014;
  • [show abstract] [hide abstract]
    ABSTRACT: Airway management in patients with giant neck masses is usually a challenge to anesthesiologists. A giant neck mass could compress the airway and thus impede endotracheal intubation. We encountered a situation where the giant neck masses of a patient pushed the epiglottis posteriorly toward the posterior pharyngeal wall and compressed the laryngeal aperture narrowing after anesthetic induction, causing direct laryngoscopic intubation and sequential fiber-optic intubation failed. The neck masses twisted the aryepiglottic fold tortuously and clogged the laryngeal aperture tightly, making a flexible fiber-optic bronchoscope unable to pass through the laryngeal aperture. Later, we utilized a McCoy laryngoscope alternately to lift the compressed larynx up and away from the posterior pharyngeal wall, creating a passage and completing endotracheal intubation successfully with the aid of a gum elastic bougie. Our case suggested that the tilting tip blade of the McCoy laryngoscope could lever the tongue base up against the tumor mass compression to improve laryngeal views and facilitate endotracheal intubation when a difficult fiber-optic intubation was encountered on a compressed laryngeal aperture.
    Acta Anaesthesiologica Taiwanica 01/2013;
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    ABSTRACT: Due to smaller incisions, fewer wound injuries, and a shorter time of recovery, laparoscopic procedures are becoming increasingly popular in pediatric surgery, but the safety of their application in low-body-weight or premature infants should be a major concern. Here we present a case report of a 3-month-old premature infant, who developed a sudden change of hemodynamic instability while undergoing a laparoscopic Nissen's fundoplication for gastroesophageal reflex disease. This was thought to result from an accidental passage of massive insufflation of carbon dioxide gas across the diaphragm, leading to pneumomediastinum.
    Acta Anaesthesiologica Taiwanica 01/2013;
  • [show abstract] [hide abstract]
    ABSTRACT: One lung ventilation in a patient with tracheostomy is considered as a difficult deed because a blocker is classically introduced in a single lumen tube with a fiberscope. We present an alternative by using a Carlens tube instead in a patient with a tracheostomy.
    Acta Anaesthesiologica Taiwanica 01/2013;
  • [show abstract] [hide abstract]
    ABSTRACT: MicroRNAs (miRNAs) are small noncoding RNA molecules of 18–25 nucleotides in length that regulate gene expression involved in fundamental cell processes. The induction and chronification of pain is associated with many expressional changes in pain-related proteins. miRNA has the potential to regulate gene and protein expression associated with the induction and chronification of pain. Thus, miRNAs might have promise in therapy and as a diagnostic and prognostic biomarker in pain medicine. The application of miRNA has been an emerging field in pain research in recent years. Many studies focusing on the regulation of miRNAs under different tissue and nociceptive stimuli have been performed in recent years. In this review, we intend to introduce the most recent research in the field of miRNA related with pain medicine such as the expression and function of miRNA in different animal pain model, the challenge of application and delivery of miRNA in vivo, the potential toxic effects of miRNA and future problems in clinical application that need to be resolved. This review focuses on the results of miRNA in animal studies and the prospect for future success.
    Acta Anaesthesiologica Taiwanica 01/2013;
  • [show abstract] [hide abstract]
    ABSTRACT: Marijuana has been used to relieve pain for centuries, but its analgesic mechanism has only been understood during the past two decades. It is mainly mediated by its constituents, cannabinoids, through activating central cannabinoid 1 (CB1) receptors, as well as peripheral CB1 and CB2 receptors. CB2-selective agonists have the benefit of lacking CB1 receptor-mediated CNS side effects. Anandamide and 2-arachidonoylglycerol (2-AG) are two intensively studied endogenous lipid ligands of cannabinoid receptors, termed endocannabinoids, which are synthesized on demand and rapidly degraded. Thus, inhibitors of their degradation enzymes, fatty acid amide hydrolase and monoacylglycerol lipase (MAGL), respectively, may be superior to direct cannabinoid receptor ligands as a promising strategy for pain relief. In addition to the antinociceptive properties of exogenous cannabinoids and endocannabinoids, involving their biosynthesis and degradation processes, we also review recent studies that revealed a novel analgesic mechanism, involving 2-AG in the periaqueductal gray (PAG), a midbrain region for initiating descending pain inhibition. It is initiated by Gq-protein-coupled receptor (GqPCR) activation of the phospholipase C (PLC)-diacylglycerol lipase (DAGL) enzymatic cascade, generating 2-AG that produces inhibition of GABAergic transmission (disinhibition) in the PAG, thereby leading to analgesia. This GqPCR-PLC-DAGL-2-AG retrograde disinhibition mechanism in the PAG can be initiated by activating type 5 metabotropic glutamate receptor (mGluR5), muscarinic acetylcholine (M1/M3), and orexin (OX1) receptors. mGluR5-mediated disinhibition can be initiated by glutamate transporter inhibitors, or indirectly by substance P, neurotensin, cholecystokinin, capsaicin, and AM404, the bioactive metabolite of acetaminophen in the brain. The putative role of 2-AG generated after activating the above neurotransmitter receptors in stress-induced analgesia is also discussed.
    Acta Anaesthesiologica Taiwanica 01/2013;
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    ABSTRACT: The goal of surgical positioning is to provide optimal surgical access and visualization while maintaining the patient's safety, with the least physiological compromise. Here, we report a 30-year-old man with an unremarkable past medical history who developed superior vena cava syndrome after a 15-hour retrosigmoid craniotomy for removal of a right cerebellopontine (CP) angle tumor. Compartment syndrome from the head to neck and rhabdomyolysis were recognized, with extensive swelling of his head and neck, markedly swollen soft tissues and necrosis of multiple muscles revealed by computed tomography, and very high concentrations of creatine kinase (CK) and aspartate transaminase. Immediate intensive care and rehabilitation therapy were provided and aimed at maintaining adequate perfusion/oxygenation and decreasing tissue pressure. He was successfully weaned from ventilation on postoperative day (POD) 25, transferred to a general ward on POD 29, and discharged with mild muscular and neurological sequelae on POD 51. Careful adjustment of surgical positioning is crucial for patient safety, especially when positioned at an extreme position in association with prolonged surgery.
    Acta Anaesthesiologica Taiwanica 01/2013;
  • Acta Anaesthesiologica Taiwanica 01/2010; 48(3):110-116.
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    ABSTRACT: We describe a case of the sudden onset of cardiovascular collapse during emergence from anesthesia resulting from a massive venous air embolism, which was detected by transesophageal echocardiography. We present this case to remind anesthesiologists to be aware of the risk of a sudden return of air trapped in the venous system during emergence from anesthesia. The air is freed because the sympathetic tone is increased, muscle-pumping power is regained, ventilation shifts from positive-pressure to negative-pressure spontaneous ventilation, and the patient is repositioned after surgery.
    Acta Anaesthesiologica Taiwanica 09/2009; 47(3):138-42.
  • [show abstract] [hide abstract]
    ABSTRACT: The introduction of the bispectral index (BIS) as a comprehensive indicator of depth of anesthesia has prompted research in the automated delivery of anesthetics. This trial aimed to evaluate the usefulness of the BIS as the feedback variable in a closed-loop anesthesia control system during cardiac surgery under cardiopulmonary bypass (CPB). Thirty-four adult patients of American Society of Anesthesiologists grade I-III undergoing elective cardiac surgery under hypothermic CPB were evaluated prospectively in a tertiary care teaching hospital. The anesthesia was induced and maintained throughout surgery using a closed-loop anesthesia delivery system (502/DEL/2003) to control the BIS. The closed-loop system was functional during 96% of the anesthesia duration. The BIS was maintained at +/- 10 of the target of 50 during 86% of the automated anesthesia. The closed-loop system was also functional during CPB despite a fall in BIS probably resulting from hypothermia. None of the patients had recall of events or experiences during the procedure. The closed-loop control of anesthetic delivery adjusted to BIS is feasible and may be useful in open heart surgery under hypothermic CPB.
    Acta Anaesthesiologica Taiwanica 09/2009; 47(3):123-7.
  • Acta Anaesthesiologica Taiwanica 09/2009; 47(3):156-7.
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    ABSTRACT: The development of advanced surgical procedures requires novel and early diagnostic techniques. One of the prime difficulties that need to be overcome is an abnormality in the coagulation system. The blood clot formation and fibrinolysis processes are very complicated and important perioperatively. However, most of the major surgeries, such as liver transplantation, use thromboelastography (TEG) for detection of coagulation abnormalities, even though TEG is not actually an ideal option. Therefore, we compared the sensitivity and specificity of the platelet function analyzer (PFA-100) and thromboelastogram (TEG) in predicting platelet dysfunction and bleeding risk. Human blood samples were drawn from healthy volunteers for this study. Levobupivacaine and CGS21680 have antiplatelet effects which were used as the detection target. The platelet counts before comparison, platelet aggregation, the closure time of PFA-100, and the parameters of TEG were examined for data analysis. Platelet aggregations were suppressed by all levobupivacaine doses (10 microg/mL, 50 micropg/mL, 200 microg/mL) and CGS21680 (100 nM, 500 nM, 1 microM) in a dose-dependent manner. Levobupivacaine and CGS21680 at maximal test doses produced no significant alteration in any parameter in the TEG assay. In the samples measured with PFA-100, both levobupivacaine and CGS21680 at maximal test doses significantly prolonged the closure time in the PFA-100 assay. We conclude that PFA-100 offers a higher sensitivity and specificity than TEG in detection of platelet dysfunction.
    Acta Anaesthesiologica Taiwanica 09/2009; 47(3):110-7.

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