Displaying publications 1 - 20 of 98 in total

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  1. Nawi SNM, Wong B, Edwards S, Loh X, Maddison J
    J Perioper Pract, 2023;33(1-2):15-23.
    PMID: 34197241 DOI: 10.1177/17504589211006020
    BACKGROUND: There is no specific recommendation regarding the type of anaesthesia in hip fracture surgery.

    OBJECTIVES: This study sought to examine the current local anaesthetic practice (general anaesthesia versus regional anaesthesia (RA)) in hip fracture surgery and to analyse their associations with perioperative outcomes.

    METHODOLOGY: A retrospective observational study of hip fracture patients from April to December 2017 was undertaken. Patient characteristics and perioperative outcomes were analysed against the types of anaesthesia using multiple logistic regression.

    RESULTS: One hundred and twelve out of 154 patients (72.7%) had a general anaesthesia. Patients from residential care facilities were more likely to receive general anaesthesia (OR = 2.9, 95% CI: 1.1, 7.4; P = 0.03). There was no significant association between type of anaesthesia and specific postoperative outcomes; however, patients with postoperative delirium and hypotension were more likely to have received general anaesthesia [OR = 1.7, 95% CI: 0.68, 4.38; P = 0.25] and [OR = 1.6, 95% CI: 0.67, 4.04; P = 0.27] respectively). Subgroup analysis showed increased length of stay with patients who underwent general anaesthesia (OR = 1.26, 95% CI:1.04, 1.54; P = 0.02).

    CONCLUSION: Regional anaesthesia may be considered in patients without contraindications in view of increased risk of postoperative delirium and hypotension, and longer length of stay with general anaesthesia. A larger prospective study is needed to confirm these findings.

    Matched MeSH terms: Anesthesia, General
  2. Ang E, Ng KT, Lee ZX, Ti LK, Chaw SH, Wang CY
    J Clin Anesth, 2020 Dec;67:110023.
    PMID: 32805685 DOI: 10.1016/j.jclinane.2020.110023
    OBJECTIVES: There is growing evidence on the influence of general anaesthesia (GA) in promoting the proliferation of cancer cells. The benefits of regional anaesthesia (RA) on cancer recurrence rate in cancer surgery remains unclear in the literature. The primary objective of this review was to examine the effect of RA on the incidence of post-operative cancer recurrence rate in cancer resection surgery.

    DESIGN: Systematic review and meta-analysis with trial sequential analysis.

    DATA SOURCES: Medline, EMBASE and CENTRAL were systematically searched from its inception until April 2020.

    ELIGIBILITY CRITERIA: All randomized control trials and observational studies comparing RA only versus GA in cancer resection surgery were included. Case report, case series and editorials were excluded.

    RESULTS: Ten retrospective observational studies (n = 9708; 4567 GA vs 5141 RA) were included for qualitative and quantitative meta-analysis. In comparison to GA, RA was not significantly associated with a lower cancer recurrence rate in cancer resection surgery (odds ratio 1.01, 95% CI 0.67 to 1.53, p = 0.95, certainty of evidence = very low). However, the trial sequential analysis for cancer recurrence rate was inconclusive. Our analysis demonstrated no significant difference between the RA and GA groups in the overall survival rate (odds ratio 1.51, 95% CI 0.65 to 3.51, p = 0.34, certainty of evidence = very low), time to cancer recurrence (mean difference 1.45 months, 95% CI -8.69 to 11.59, p = 0.78, certainty of evidence = very low), cancer-related mortality (odds ratio 1.79, 95% CI 0.57 to 5.62, p = 0.32, certainty of evidence = very low).

    CONCLUSIONS: Given the low level of evidence and underpowered trial sequential analysis, our review neither support nor oppose that the use of RA was associated with lower incidence of cancer recurrence rate than GA in cancer resection surgery.

    TRIAL REGISTRATION: CRD42020163780.

    Matched MeSH terms: Anesthesia, General/adverse effects
  3. Mac Giolla Phadraig C, Kammer PV, Asimakopoulou K, Healy O, Fleischmann I, Buchanan H, et al.
    Community Dent Oral Epidemiol, 2023 Dec;51(6):1065-1077.
    PMID: 37368479 DOI: 10.1111/cdoe.12890
    INTRODUCTION: There is no agreed taxonomy of the techniques used to support patients to receive professional oral healthcare. This lack of specification leads to imprecision in describing, understanding, teaching and implementing behaviour support techniques in dentistry (DBS).

    METHODS: This review aims to identify the labels and associated descriptors used by practitioners to describe DBS techniques, as a first step in developing a shared terminology for DBS techniques. Following registration of a protocol, a scoping review limited to Clinical Practice Guidelines only was undertaken to identify the labels and descriptors used to refer to DBS techniques.

    RESULTS: From 5317 screened records, 30 were included, generating a list of 51 distinct DBS techniques. General anaesthesia was the most commonly reported DBS (n = 21). This review also explores what term is given to DBS techniques as a group (Behaviour management was most commonly used (n = 8)) and how these techniques were categorized (mainly distinguishing between pharmacological and non-pharmacological).

    CONCLUSIONS: This is the first attempt to generate a list of techniques that can be selected for patients and marks an initial step in future efforts at agreeing and categorizing these techniques into an accepted taxonomy, with all the benefits this brings to research, education, practice and patients.

    Matched MeSH terms: Anesthesia, General*
  4. Satgurunathan P
    Med J Malaysia, 1985 Dec;40(4):271-5.
    PMID: 3916211
    In this project, a retrospective study regarding the anaesthetic techniques, complications and the relevant monitoring aids needed during the procedure, is made from analysis of the 100 available anaesthetic records of cases done during the five years at the Urology Department, General Hospital, Kuala Lumpur. The total number of cases done during 1979-1984 was 112 but 12 anaesthetic record sheets were missing. The patients requiring renal transplant operation were representative of the end-stage chronic renal failure population of Malaysia with the usual high incidence of cardiovascular and biochemical abnormalities. Except for two cases of epidural anaesthesia, all the other patients received general anaesthesia. Induction was with intravenous barbiturate followed by muscle relaxant, neurolept or narcotic and halothane supplement for maintenance. There were no intraoperative or postoperative deaths due to anaesthetic complications. There were five cases of anaesthetic morbidity of which three cases had inadequate reversal of neuromuscular blocking agents and required postoperative ventilation and two cases had poor respiratory effort and required naloxone supplement. Less serious complications such as allergic manifestations were seen in three cases with use of the new muscle relaxant atracurium. The conclusion was that general anaesthesia using thiopentone for induction, pancuronium bromide for intubation and maintenance of muscle relaxation and neurolept fentanyl/droperidol and halothane supplement, all in doses tailored to the requirements ofa renal failure patient, is a suitable technique of anaesthesia for renal transplant operation. Atracurium, the new muscle relaxant, seems to be a favourable alternative to pancuronium bromide. However, as only five cases in our study received atracurium, further studies would have to be done to support it.
    Matched MeSH terms: Anesthesia, General/adverse effects; Anesthesia, General/methods*
  5. Lalitha V, Eswaran C
    J Med Syst, 2007 Dec;31(6):445-52.
    PMID: 18041276
    Monitoring the depth of anesthesia (DOA) during surgery is very important in order to avoid patients' interoperative awareness. Since the traditional methods of assessing DOA which involve monitoring the heart rate, pupil size, sweating etc, may vary from patient to patient depending on the type of surgery and the type of drug administered, modern methods based on electroencephalogram (EEG) are preferred. EEG being a nonlinear signal, it is appropriate to use nonlinear chaotic parameters to identify the anesthetic depth levels. This paper discusses an automated detection method of anesthetic depth levels based on EEG recordings using non-linear chaotic features and neural network classifiers. Three nonlinear parameters, namely, correlation dimension (CD), Lyapunov exponent (LE) and Hurst exponent (HE) are used as features and two neural network models, namely, multi-layer perceptron network (feed forward model) and Elman network (feedback model) are used for classification. The neural network models are trained and tested with single and multiple features derived from chaotic parameters and the performances are evaluated in terms of sensitivity, specificity and overall accuracy. It is found from the experimental results that the Lyapunov exponent feature with Elman network yields an overall accuracy of 99% in detecting the anesthetic depth levels.
    Matched MeSH terms: Anesthesia, General/standards*
  6. Mohandas K, Selvarajah S
    Med J Malaysia, 1988 Sep;43(3):255-8.
    PMID: 3241587
    Matched MeSH terms: Anesthesia, General*
  7. Manavalan AS
    Med J Malaya, 1969 Dec;24(2):124-7.
    PMID: 4244137
    Matched MeSH terms: Anesthesia, General*
  8. Lim Say Wan, Gunendran A
    Med J Malaya, 1969 Dec;24(2):128-37.
    PMID: 4244138
    Matched MeSH terms: Anesthesia, General*
  9. Sari D, Widyastuti Y, Hendy HH, Dharma IA, Pancarani A, Krislee A
    Med J Malaysia, 2024 Mar;79(2):151-156.
    PMID: 38553919
    INTRODUCTION: Emergence delirium (ED) is a transient irritative and dissociative state that arises after the cessation of anaesthesia in patients who do not respond to calming measures. There are many risk factors for ED, but the exact cause and underlying mechanism have not been determined because the definition of ED is still unclear in consensus. This study aims to determine ED incidence, identify ED risk factors and external validation of Watcha, Cravero and expert assessment to Pediatric Anesthesia Emergence Delirium (PAED) scoring system in ED prediction.

    MATERIALS AND METHODS: This study is a prospective cohort study on 79 paediatrics who underwent elective surgery with general anaesthesia. Parameter measures include the incidence of ED, ED risk factors, and the relationship between PAED, Watcha, Cravero score and expert assessment. The ED risk factor was analysed using univariate and multivariate analysis. The relationship between PAED, Watcha, Cravero score, and expert assessment was determined using Receiver Operating Characteristic (ROC) curve analysis.

    RESULTS: The incidence of ED was 22.8%. All parameters examined in this study showed p < 0.05. Watcha's scoring correlates with the PAED scoring and shows the highest discrimination ability with AUC 0.741 and p < 0.05.

    CONCLUSION: The incidence of ED in paediatrics is relatively high. Compared to others, Watcha score are more reliable for ED prediction. However, some demographic and perioperative factors are not the risk factor of ED.

    Matched MeSH terms: Anesthesia, General/adverse effects
  10. Chua AW, Kumar CM, Harrisberg BP, Eke T
    Anaesth Intensive Care, 2023 Mar;51(2):107-113.
    PMID: 36524304 DOI: 10.1177/0310057X221111183
    Ocular hypotony can occur from many causes, including eye trauma, ophthalmic surgery and ophthalmic regional anaesthesia-related complications. Some of these patients require surgical intervention(s) necessitating repeat anaesthesia. While surgical management of these patients is well described in the literature, the anaesthetic management is seldom discussed. The hypotonous eye may also have altered globe anatomy, meaning that the usual ocular proprioceptive feedbacks during regional ophthalmic block may be altered or lost, leading to higher risk of inadvertent globe injury. In an 'open globe' there is a risk of sight-threatening expulsive choroidal haemorrhage as a consequence of ophthalmic block or general anaesthesia. This narrative review describes the physiology of aqueous humour, the risk factors associated with ophthalmic regional anaesthesia-related ocular hypotony, the surgical management, and a special emphasis on anaesthetic management. Traumatic hypotony usually requires urgent surgical repair, whereas iatrogenic hypotony may be less urgent, with many cases scheduled as elective procedures. There is no universal best anaesthetic technique. Topical anaesthesia and regional ophthalmic block, with some technique modifications, are suitable in many mild-to-moderate cases, whilst general anaesthesia may be required for complex and longer procedures, and severely distorted globes.
    Matched MeSH terms: Anesthesia, General
  11. Chew EE, Hashim NH, Wang CY
    Anaesth Intensive Care, 2010 Nov;38(6):1018-22.
    PMID: 21226431
    We compared the performance of the LMA Supreme (SLMA) with the I-Gel during anaesthesia in spontaneously breathing adult patients. Ninety patients with American Society of Anesthesiologists physical status I or II were studied in a prospective randomised controlled study. Our primary outcome measure was oropharyngeal leak pressure. We also compared the overall insertion success rate, ease of insertion, adequacy of ventilation and incidence of complications. The mean (SD), oropharyngeal leak pressure for the SLMA was 25.6 (5.1) cmH2O, which was greater than for the I-Gel 20.7 (5.9) cmH2O (P = 0.0001). The first attempt and overall insertion success rates were similar between the two groups (SLMA 97.8 and 97.8%; I-Gel 93.3 and 100%, P = 0.132). The SLMA was rated easier to insert than the I-Gel (P = 0.011), but the time taken for insertion (P = 0.433) was similar. The incidence of complications was low in both groups. The grade of fibreoptic view was better with the I-Gel than the SLMA (P = 0.001). We conclude that in adults with normal airways, the SLMA is easier to insert and provides a higher oropharyngeal leak pressure, but fibreoptic views are better with the i-gel.
    Matched MeSH terms: Anesthesia, General/instrumentation*
  12. Tan I, Wang CY
    Med J Malaysia, 1993 Jun;48(2):200-6.
    PMID: 8350796
    Fibreoptic intubation has been established as a major advance in the management of difficult or failed intubation in the awake patient. If necessary, it may be performed under general anaesthesia with either spontaneous or controlled ventilation. This should be considered early in the management of failed intubation, before multiple attempts with other techniques lead to haemorrhage and oedema in the airway. We describe here selected case reports to illustrate this in 8 different situations. This is followed by a brief review of the technique and indications of fibreoptic intubation.
    Matched MeSH terms: Anesthesia, General/methods
  13. Miranda AF, Reddy VG
    Med J Malaysia, 1990 Mar;45(1):65-9.
    PMID: 2152071
    A Brain laryngeal mask was assessed in fifty patients undergoing general anaesthesia who required controlled ventilation. The mask was inserted in all patients without any difficulty and the satisfactory seal obtained enabled ventilation in all patients in a wide range of positions. Airway obstruction occurred in seven patients secondary to downfolding of the epiglottis and this was rectified by reinsertion. The incidence of sore throat was 10%. The Brain laryngeal mask is a safe alternative to the tracheal tube for controlled ventilation during general anaesthesia.
    Matched MeSH terms: Anesthesia, General*
  14. Hashim NA, Yusof ZYM, Saub R
    Community Dent Oral Epidemiol, 2019 02;47(1):24-31.
    PMID: 30187941 DOI: 10.1111/cdoe.12417
    OBJECTIVES: To evaluate the sensitivity and responsiveness of the Malay version of Early Childhood Oral Health Impact Scale (Malay-ECOHIS) to dental treatment of early childhood caries (ECC) under general anaesthesia (GA) and determine the minimally important difference (MID) for the Malay-ECOHIS.

    METHODS: A sample of 158 preschool children with ECC awaiting dental treatment under GA was recruited over an 8-month period. Parents self-completed the Malay-ECOHIS before and 4 weeks after their child's dental treatment. At 4 weeks follow-up, parents also responded to a global health transition judgement item. Data were analysed using independent and paired samples t tests, ANOVA and Pearson correlation coefficients.

    RESULTS: The response rate was 87.3%. The final sample comprised 76 male (55.1%) and 62 female (44.9%) preschool children with mean age of 4.5 (SD = 1.0) years. Following treatment, there were significant reductions in mean scores for total Malay-ECOHIS, child impact section (CIS), family impact section (FIS) and all domains, respectively (P 

    Matched MeSH terms: Anesthesia, General*
  15. Chaw SH, Shariffuddin II, Foo LL, Lee PK, Paran RM, Cheang PC, et al.
    J Clin Monit Comput, 2018 Dec;32(6):1093-1099.
    PMID: 29404890 DOI: 10.1007/s10877-018-0109-4
    To date, most of the studies on safety and efficacy of supraglottic airway devices were done in Caucasian patients, and the results may not be extrapolated to Asian patients due to the different airway anatomy. We conducted this study to compare Supreme™ LMA (SLMA) and Proseal™ LMA (PLMA) size 1.5 in anaesthetized children among an Asian population. This prospective randomized clinical trial was conducted in a tertiary teaching hospital from September 2013 until May 2016. Sixty children, weighing 5-10 kg, who were scheduled for elective surgery under general anaesthesia were recruited and completed the study. Patients were randomly assigned to have either SLMA or PLMA as the airway device for general anaesthesia, and standard anaesthesia protocol was followed. The primary outcome measured was the oropharyngeal leak pressure (OLP). The rate of successful insertion, insertion time, fibreoptic view of larynx and airway complications for each device were also assessed. There were no statistically significant differences between SLMA and PLMA size 1.5 in oropharyngeal leak pressure [19.1 (± 5.5) cmH2O vs. 19.8 (± 4.5) cmH2O, p = 0.68]. Secondary outcomes including time to insertion [20.8 (± 8.3) vs. 22.1 (± 8.3) s, p = 0.57], first attempt success rate for device insertion, fibreoptic view of larynx, and airway complications were also comparable between the two devices. We found that all the patients who had a failed device insertion (either PLMA or SLMA) were of a smaller size (5-6.2 kg). The oropharyngeal leak pressure of the SLMA 1.5 was comparable with the PLMA 1.5, and both devices were able to maintain an airway effectively without significant clinical complications in anaesthetized children from an Asian population.
    Matched MeSH terms: Anesthesia, General/instrumentation*
  16. Sharma S, Aminuldin AG, Azlan W
    Singapore Med J, 1994 Oct;35(5):529-31.
    PMID: 7701380
    A 3-day-old child presented with a gross swelling on the right side of the neck extending beyond the midline and inability to swallow. It was diagnosed to be cystic hygroma and decision was made to excise the swelling as an emergency operation to enable the child to swallow and thrive better. During the gaseous induction, difficulty was encountered in maintaining the airway and subsequently to intubate the patient. Intraoperatively the surgeon was not able to excise the tumour completely. Postoperatively it was decided to ventilate the child electively because of the intubation difficulties encountered and not so firm floor of the mouth because of surgical excision. The stay in the neonatal ICU was marked with infection and facial nerve palsy.
    Matched MeSH terms: Anesthesia, General/adverse effects*
  17. Revadi G, Philip R, Gurdeep S
    Med J Malaysia, 2010 Jun;65(2):143-5.
    PMID: 23756800 MyJurnal
    A total of 36 patients with suspected foreign body (FB) of the oesophagus who underwent rigid endoscopy under general anaesthesia (GA) from January 2005 to March 2007 were reviewed. The majority of the patients were working adults in the 3rd to 5th decade of life. There was no foreign body in 33.3% of the patients. Co-morbidities were present in 33.3%. Morbidity and mortality from the procedure included one aspiration pneumonia, one lateral pharyngeal wall tear and one death (8.3%). X-ray findings were negative or inconclusive in 11(45.8%) patients with a foreign body. The majority of patients, 85.7% required 2 to 3 days of admission of which 52.7% had no foreign bodies. The most common foreign body retrieved was fishbone accounting for 13 of the 24 foreign bodies detected.
    Matched MeSH terms: Anesthesia, General
  18. Selina F, Talha KA, Maw K, Aung T, Ahmed F, Solaiman M
    Mymensingh Med J, 2021 Jan;30(1):123-127.
    PMID: 33397862
    Traditional Direct laryngoscope (DL) has been used by anesthesiologist during intubation for general anesthesia patients for more than a century. Video laryngoscope (VL) helps in better visualization of laryngeal orifice during intubation and reduces intubation time. This was a cross sectional study conducted in two Asian Hospitals Queen Elizabeth II hospital of Kotakinabalu, Malaysia and King Faisal Hospital Taif of Saudi Arabia to assess the first-pass success of video laryngoscope and to compare with direct laryngoscope from July 2015 to December 2017. Random lottery technique was applied for sampling. Participants of both groups (VL and DL) were enrolled by simple lottery method. Total 146 patients were enrolled with a set inclusion criterion. Mallampati class, mouth opening, thyromental distance and mobility of atlantooccipital junction were set as predictors of first-pass success. The first-pass success was 98.7% in mallampati II patients and 92.8% in mallampati III patients. Average success rate was 95.75%. The mean success rate of VL and DL was compared and was found VL had a significantly better first-pass success rate than DL (p<0.05).
    Matched MeSH terms: Anesthesia, General
  19. Lim SM, Ng BK, Wilson A, Cheong CC, Ng TY, Wang CY
    J Clin Monit Comput, 2021 Jan 02.
    PMID: 33387155 DOI: 10.1007/s10877-020-00623-7
    The primary objective of this study is to compare the effectiveness of cricoid pressure (CP) and paralaryngeal pressure (PLP) on occlusion of eccentric esophagus in patients under general anesthesia (GA). Secondary objectives include the prevalence of patients with central or eccentric esophagus both before and after GA, and the success rate of CP in occluding centrally located esophagus in patients post GA. Fifty-one ASA physical status I and II patients, undergoing GA for elective surgery were enrolled in this study. Ultrasonography imaging were performed to determine the position of the esophagus relative to the trachea: (i) before induction of GA, (ii) after GA before external CP maneuver, (iii) after GA with CP, and (iv) after GA with PLP. CP was applied to all patients whilst PLP via fingertip technique was only applied to patients with an eccentric esophagus. Among a total of 51 patients, 28 of them (55%) had eccentric esophagus pre GA, while this number increase to 33 (65%) after induction of GA. CP success rate was 100% in 18 patients with central esophagus post GA versus 27% in 33 patients with eccentric esophagus post GA (P<0.00001). Overall success rate for CP was 53%. In 33 patients with eccentric esophagus anatomy post GA, PLP success rate was 30% compared with 27% with CP (P=1.000). Ultrasound guided PLP fingertips technique was not effective in patients with an eccentrically located esophagus post GA. Ultrasound guided CP achieved 100% success rate in patients with a centrally located esophagus post GA.
    Matched MeSH terms: Anesthesia, General
  20. Nazarudin, B., Khairulamir, Z., Azarinah, I., Jaafarm, M.Z., Karis, M., Esa, K.
    MyJurnal
    This was a prospective randomised study comparing carboxyhaemoglobin concentrations between low-flow anaesthesia (fresh gas flow 1.0 L/min) and minimal-flow anaesthesia (0.5 L/min) using desflurane. Sixty (ASA 1 or 2) adult patients undergoing elective surgery under general anaesthesia were randomly allocated to receive either low-flow (Group 1) or minimal flow anaesthesia (Group 2). Venous blood samples for carboxyhaemoglobin levels were taken at baseline and at 10 mins intervals for 40 mins. Both groups showed significant increase in carboxyhaemoglobin concentrations within the first 10 mins when fresh gas flow of 4.0 L/min was used. Reduction in carboxyhemoglobin levels was seen after 20 mins of minimal or low flow anaesthesia. However, there was no significant difference in the magnitude of reduction of carboxyhemoglobin concentrations between the groups. The fractional inspired of oxygen (FiO2) showed no significant changes in either group. In conclusion, desflurane usage in anaesthesia with either low-flow or minimal-flow was not associated with increased carboxyhaemoglobin concentrations.
    Matched MeSH terms: Anesthesia, General
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