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  1. Takaki S, Kadiman SB, Tahir SS, Ariff MH, Kurahashi K, Goto T
    J Cardiothorac Vasc Anesth, 2015 Feb;29(1):64-8.
    PMID: 25620140 DOI: 10.1053/j.jvca.2014.06.022
    The aim of this study was to determine the best predictors of successful extubation after cardiac surgery, by modifying the rapid shallow breathing index (RSBI) based on patients' anthropometric parameters.
  2. Sartini C, Lomivorotov V, Pieri M, Lopez-Delgado JC, Baiardo Redaelli M, Hajjar L, et al.
    J Cardiothorac Vasc Anesth, 2019 05;33(5):1430-1439.
    PMID: 30600204 DOI: 10.1053/j.jvca.2018.11.026
    The authors aimed to identify interventions documented by randomized controlled trials (RCTs) that reduce mortality in adult critically ill and perioperative patients, followed by a survey of clinicians' opinions and routine practices to understand the clinicians' response to such evidence. The authors performed a comprehensive literature review to identify all topics reported to reduce mortality in perioperative and critical care settings according to at least 2 RCTs or to a multicenter RCT or to a single-center RCT plus guidelines. The authors generated position statements that were voted on online by physicians worldwide for agreement, use, and willingness to include in international guidelines. From 262 RCT manuscripts reporting mortality differences in the perioperative and critically ill settings, the authors selected 27 drugs, techniques, and strategies (66 RCTs, most frequently published by the New England Journal of Medicine [13 papers], Lancet [7], and Journal of the American Medical Association [5]) with an agreement ≥67% from over 250 physicians (46 countries). Noninvasive ventilation was the intervention supported by the largest number of RCTs (n = 13). The concordance between agreement and use (a positive answer both to "do you agree" and "do you use") showed differences between Western and other countries and between anesthesiologists and intensive care unit physicians. The authors identified 27 clinical interventions with randomized evidence of survival benefit and strong clinician support in support of their potential life-saving properties in perioperative and critically ill patients with noninvasive ventilation having the highest level of support. However, clinician views appear affected by specialty and geographical location.
  3. Monaco F, Di Prima AL, Kim JH, Plamondon MJ, Yavorovskiy A, Likhvantsev V, et al.
    J Cardiothorac Vasc Anesth, 2020 Jun;34(6):1622-1635.
    PMID: 32276758 DOI: 10.1053/j.jvca.2020.02.038
    SEPARATION from cardiopulmonary bypass (CPB) after cardiac surgery is a progressive transition from full mechanical circulatory and respiratory support to spontaneous mechanical activity of the lungs and heart. During the separation phase, measurements of cardiac performance with transesophageal echocardiography (TEE) provide the rationale behind the diagnostic and therapeutic decision-making process. In many cases, it is possible to predict a complex separation from CPB, such as when there is known preoperative left or right ventricular dysfunction, bleeding, hypovolemia, vasoplegia, pulmonary hypertension, or owing to technical complications related to the surgery. Prompt diagnosis and therapeutic decisions regarding mechanical or pharmacologic support have to be made within a few minutes. In fact, a complex separation from CPB if not adequately treated leads to a poor outcome in the vast majority of cases. Unfortunately, no specific criteria defining complex separation from CPB and no management guidelines for these patients currently exist. Taking into account the above considerations, the aim of the present review is to describe the most common scenarios associated with a complex CPB separation and to suggest strategies, pharmacologic agents, and para-corporeal mechanical devices that can be adopted to manage patients with complex separation from CPB. The routine management strategies of complex CPB separation of 17 large cardiac centers from 14 countries in 5 continents will also be described.
  4. Phoon PHY, MacLaren G, Ti LK, Tan JSK, Hwang NC
    J Cardiothorac Vasc Anesth, 2019 Dec;33(12):3394-3401.
    PMID: 30131218 DOI: 10.1053/j.jvca.2018.07.018
    Singapore is a small Southeast Asian island city-state located at the tip of the Malay peninsula with a population of 5.61 million people. It was a former British colony that went on to become a part of Malaysia before gaining independence in 1965. Since then, Singapore has developed tremendously from a small fishing village into the region's medical hub. This article will explore the roots of cardiac anesthesia in Singapore and how it has developed into a subspecialty today.
  5. Sartini C, Lomivorotov V, Pisano A, Riha H, Baiardo Redaelli M, Lopez-Delgado JC, et al.
    J Cardiothorac Vasc Anesth, 2019 Oct;33(10):2685-2694.
    PMID: 31064730 DOI: 10.1053/j.jvca.2019.03.022
    OBJECTIVE: Reducing mortality is a key target in critical care and perioperative medicine. The authors aimed to identify all nonsurgical interventions (drugs, techniques, strategies) shown by randomized trials to increase mortality in these clinical settings.

    DESIGN: A systematic review of the literature followed by a consensus-based voting process.

    SETTING: A web-based international consensus conference.

    PARTICIPANTS: Two hundred fifty-one physicians from 46 countries.

    INTERVENTIONS: The authors performed a systematic literature search and identified all randomized controlled trials (RCTs) showing a significant increase in unadjusted landmark mortality among surgical or critically ill patients. The authors reviewed such studies during a meeting by a core group of experts. Studies selected after such review advanced to web-based voting by clinicians in relation to agreement, clinical practice, and willingness to include each intervention in international guidelines.

    MEASUREMENTS AND MAIN RESULTS: The authors selected 12 RCTs dealing with 12 interventions increasing mortality: diaspirin-crosslinked hemoglobin (92% of agreement among web voters), overfeeding, nitric oxide synthase inhibitor in septic shock, human growth hormone, thyroxin in acute kidney injury, intravenous salbutamol in acute respiratory distress syndrome, plasma-derived protein C concentrate, aprotinin in high-risk cardiac surgery, cysteine prodrug, hypothermia in meningitis, methylprednisolone in traumatic brain injury, and albumin in traumatic brain injury (72% of agreement). Overall, a high consistency (ranging from 80% to 90%) between agreement and clinical practice was observed.

    CONCLUSION: The authors identified 12 clinical interventions showing increased mortality supported by randomized controlled trials with nonconflicting evidence, and wide agreement upon clinicians on a global scale.

  6. Zangrillo A, Lomivorotov VV, Pasyuga VV, Belletti A, Gazivoda G, Monaco F, et al.
    PMID: 35168907 DOI: 10.1053/j.jvca.2022.01.001
    OBJECTIVE: To investigate the effect of volatile anesthetics on the rates of postoperative myocardial infarction (MI) and cardiac death after coronary artery bypass graft (CABG).

    DESIGN: A post hoc analysis of a randomized trial.

    SETTING: Cardiac surgical operating rooms.

    PARTICIPANTS: Patients undergoing elective, isolated CABG.

    INTERVENTIONS: Patients were randomized to receive a volatile anesthetic (desflurane, isoflurane, or sevoflurane) or total intravenous anesthesia (TIVA). The primary outcome was hemodynamically relevant MI (MI requiring high-dose inotropic support or prolonged intensive care unit stay) occurring within 48 hours from surgery. The secondary outcome was 1-year death due to cardiac causes.

    MEASUREMENTS AND MAIN RESULTS: A total of 5,400 patients were enrolled between April 2014 and September 2017 (2,709 patients randomized to the volatile anesthetics group and 2,691 to TIVA). The mean age was 62 ± 8.4 years, and the median baseline ejection fraction was 57% (50-67), without differences between the 2 groups. Patients in the volatile group had a lower incidence of MI with hemodynamic complications both in the per-protocol (14 of 2,530 [0.6%] v 27 of 2,501 [1.1%] in the TIVA group; p = 0.038) and as-treated analyses (16 of 2,708 [0.6%] v 29 of 2,617 [1.1%] in the TIVA group; p = 0.039), but not in the intention-to-treat analysis (17 of 2,663 [0.6%] v 28 of 2,667 [1.0%] in the TIVA group; p = 0.10). Overall, deaths due to cardiac causes were lower in the volatile group (23 of 2,685 [0.9%] v 40 of 2,668 [1.5%] than in the TIVA group; p = 0.03).

    CONCLUSIONS: An anesthetic regimen, including volatile agents, may be associated with a lower rate of postoperative MI with hemodynamic complication in patients undergoing CABG. Furthermore, it may reduce long-term cardiac mortality.

  7. Ng KT, Velayit A, Khoo DKY, Mohd Ismail A, Mansor M
    J Cardiothorac Vasc Anesth, 2018 10;32(5):2303-2310.
    PMID: 29454528 DOI: 10.1053/j.jvca.2018.01.004
    OBJECTIVE: Fluid overload is a common phenomenon seen in intensive care units (ICUs). However, there is no general consensus on whether continuous or bolus furosemide is safer or more effective in these hemodynamically unstable ICU patients. The aim of this meta-analysis was to examine the clinical outcomes of continuous versus bolus furosemide in a critically ill population in ICUs.

    DATA SOURCES: MEDLINE, EMBASE, PubMed, and the Cochrane Database of Systematic reviews were searched from their inception until June 2017.

    REVIEW METHODS: All randomized controlled trials, observational studies, and case-control studies were included. Case reports, case series, nonsystematic reviews, and studies that involved children were excluded.

    RESULTS: Nine studies (n = 464) were eligible in the data synthesis. Both continuous and bolus furosemide resulted in no difference in all-cause mortality (7 studies; n = 396; I2 = 0%; fixed-effect model [FEM]: odds ratio [OR] 1.15 [95% confidence interval (CI) 0.67-1.96]; p = 0.64). Continuous furosemide was associated with significant greater total urine output (n = 132; I2 = 70%; random-effect model: OR 811.19 [95% CI 99.84-1,522.53]; p = 0.03), but longer length of hospital stay (n = 290; I2 = 40%; FEM: OR 2.84 [95% CI 1.74-3.94]; p < 0.01) in comparison to the bolus group. No statistical significance was found in the changes of creatinine and estimated glomerular filtration rate between both groups.

    CONCLUSIONS: In this meta-analysis, continuous furosemide was associated with greater diuretic effect in total urine output as compared with bolus. Neither had any differences in mortality and changes of renal function tests. However, a large adequately powered randomized clinical trial is required to fill this knowledge gap.

  8. Chew WZ, Teoh WY, Sivanesan N, Loh PS, Shariffuddin II, Ti LK, et al.
    J Cardiothorac Vasc Anesth, 2022 Dec;36(12):4449-4459.
    PMID: 36038444 DOI: 10.1053/j.jvca.2022.07.004
    OBJECTIVE: To examine the effect of bispectral index (BIS)-guided anesthesia on the incidence of postoperative delirium (POD) in elderly patients undergoing surgery.

    DESIGN: A systematic review, meta-analysis, and trial sequential analysis (TSA).

    SETTING: In the operating room, postoperative anesthesia care units (PACU), and ward.

    PARTICIPANTS: Elderly patients (>60 years old) undergoing surgery.

    INTERVENTIONS: The EMBASE, MEDLINE, and CENTRAL databases were searched systematically from their inception until December 2020 for randomized controlled trials comparing BIS and usual care or blinded BIS.

    MEASUREMENTS AND MAIN RESULTS: Ten trials (N = 3,891) were included for quantitative meta-analysis. In comparison to the control group, there was no significant difference in the incidence of POD in elderly patients randomized to BIS-guided anesthesia (odds ratio [OR] 0.71, 95% CI 0.47-1.08, I2 = 76%, p = 0.11, level of evidence = very low, TSA = inconclusive). The authors' review demonstrated that elderly patients with BIS-guided anesthesia were significantly associated with a lower incidence of postoperative cognitive dysfunction (POCD) (OR 0.64, 95% CI 0.46-0.88, p = 0.006), extubation time (mean difference [MD] -3.38 minutes, 95% CI -4.38 to -2.39, p < 0.00001), time to eye opening (MD -2.17 minutes, 95% CI -4.21 to -0.14, p = 0.04), and time to discharge from the PACU (MD -10.77 minutes, 95% CI -11.31 to - 10.23, p < 0.00001).

    CONCLUSION: The authors' meta-analysis demonstrated that BIS-guided anesthesia was not associated with a reduced incidence of POD, but it was associated with a reduced incidence of POCD and improved recovery parameters.

  9. Sudin A, Chong C, Hassan R
    J Cardiothorac Vasc Anesth, 2024 Feb;38(2):466-474.
    PMID: 38114372 DOI: 10.1053/j.jvca.2023.11.014
    OBJECTIVE: To determine the incidence of poststernotomy pain syndrome (PSPS) after open cardiac surgery in 2021. To determine characteristics and assess the severity of symptoms in patients diagnosed with PSPS. To identify factors that can be associated with patients who were positive for PSPS.

    DESIGN AND METHODOLOGY: This study used a retrospective observational approach. Logistic regression analysis was employed to identify factors associated with the positive group.

    SETTING: This study included all adult patients who underwent open cardiac surgery at the National Heart Institute, Malaysia, in 2021.

    PARTICIPANTS: A total of 1,395 patients were enrolled.

    INTERVENTIONS: The study involved conducting phone interviews to assess the presence of PSPS, followed by administering the Brief Pain Inventory questionnaire in the positive group to identify characteristics and severity of chronic pain.

    MEASUREMENTS AND MAIN RESULTS: The incidence of PSPS after open cardiac surgery in 2021 was 20.35%. A total of 17.7% of patients reported that pain affected their daily activities, sleep, or emotions. Univariate analysis identified factors associated with PSPS, including age <60 years old, body mass index >30 kg/m2, history of previous percutaneous coronary intervention, ejection fraction <50%, the absence of chronic kidney disease (CKD), and internal mammary artery harvesting (p < 0.05). Multivariate analysis revealed that 4 independent factors were associated with PSPS: age <60 years old, history of previous percutaneous coronary intervention, ejection fraction <50%, and the absence of CKD (as compared with CKD) (p < 0.05).

    CONCLUSIONS: Poststernotomy pain syndrome is a complex issue affected by various factors. Although the pain score may not be as severe as previously believed, it remains crucial to recognize PSPS because a significant proportion of patients are affected.

  10. Tan RSJ, Ng KT, Xin CE, Atan R, Yunos NM, Hasan MS
    J Cardiothorac Vasc Anesth, 2022 Sep;36(9):3576-3586.
    PMID: 35715291 DOI: 10.1053/j.jvca.2022.05.011
    OBJECTIVES: The clinical efficacy of corticosteroids remains unclear. The primary aim of this systematic review and meta-analysis was to evaluate the use of high-dose versus low- dose corticosteroids on the mortality rate of COVID-19 patients.

    DESIGN: Systematic review and meta-analysis.

    SETTING: Electronic search for randomized controlled trials and observational studies (MEDLINE, EMBASE, CENTRAL).

    PARTICIPANTS: Hospitalized adults ≥ 18 years old who were SARS-CoV-2 PCR positive.

    INTERVENTIONS: High-dose and low-dose corticosteroids.

    MEASUREMENTS AND MAIN RESULTS: A total of twelve studies (n=2759 patients) were included in this review. The pooled analysis demonstrated no significant difference in mortality rate between the high-dose and low-dose corticosteroids groups (n=2632; OR: 1.07 [95%CI 0.67, 1.72], p=0.77, I2=76%, trial sequential analysis=inconclusive). No significant differences were observed in the incidence of intensive care unit (ICU) admission rate (n=1544; OR: 0.77[95%CI 0.43, 1.37], p=0.37, I2= 72%), duration of hospital stay (n=1615; MD: 0.53[95%CI -1.36, 2.41], p=0.58, I2=87%), respiratory support (n=1694; OR: 1.51[95%CI 0.77, 2.96], p=0.23, I2=84%), duration of mechanical ventilation (n=419; MD: -1.44[95%CI -4.27, 1.40], p=0.32, I2=93%), incidence of hyperglycemia (n=516, OR: 0.91[95%CI 0.58, 1.43], p=0.68, I2=0%) and infection rate (n=1485, OR: 0.86[95%CI 0.64, 1.16], p=0.33, I2=29%).

    CONCLUSION: The meta-analysis demonstrated high-dose corticosteroids did not reduce mortality rate. However, high-dose corticosteroids did not pose higher risk of hyperglycemia and infection rate for COVID-19 patients. Due to the inconclusive trial sequential analysis, substantial heterogeneity and low level of evidence, future large-scale randomized clinical trials are warranted to improve the certainty of evidence for the use of high-dose compared to low-dose corticosteroids in COVID-19 patients.

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