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Kuh JH, Jung WS, Lim L, Yoo HK, Ju JW, Lee HJ, Kim WH. The effect of high perioperative inspiratory oxygen fraction for abdominal surgery on surgical site infection: a systematic review and meta-analysis. Sci Rep 2023; 13:15599. [PMID: 37730856 PMCID: PMC10511429 DOI: 10.1038/s41598-023-41300-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 08/24/2023] [Indexed: 09/22/2023] Open
Abstract
Guidelines from the World Health Organization strongly recommend the use of a high fraction of inspired oxygen (FiO2) in adult patients undergoing general anesthesia to reduce surgical site infection (SSI). However, previous meta-analyses reported inconsistent results. We aimed to address this controversy by focusing specifically on abdominal surgery with relatively high risk of SSI. Medline, EMBASE, and Cochrane CENTRAL databases were searched. Randomized trials of abdominal surgery comparing high to low perioperative FiO2 were included, given that the incidence of SSI was reported as an outcome. Meta-analyses of risk ratios (RR) were performed using a fixed effects model. Subgroup analysis and meta-regression were employed to explore sources of heterogeneity. We included 27 trials involving 15977 patients. The use of high FiO2 significantly reduced the incidence of SSI (n = 27, risk ratio (RR): 0.87; 95% confidence interval (CI): 0.79, 0.95; I2 = 49%, Z = 3.05). Trial sequential analysis (TSA) revealed that z-curve crossed the trial sequential boundary and data are sufficient. This finding held true for the subgroup of emergency operations (n = 2, RR: 0.54; 95% CI: 0.35, 0.84; I2 = 0%, Z = 2.75), procedures using air as carrier gas (n = 9, RR: 0.79; 95% CI: 0.69, 0.91; I2 = 60%, Z = 3.26), and when a high level of FiO2 was maintained for a postoperative 6 h or more (n = 9, RR: 0.68; 95% CI: 0.56, 0.83; I2 = 46%, Z = 3.83). Meta-regression revealed no significant interaction between SSI with any covariates including age, sex, body-mass index, diabetes mellitus, duration of surgery, and smoking. Quality of evidence was assessed to be moderate to very low. Our pooled analysis revealed that the application of high FiO2 reduced the incidence of SSI after abdominal operations. Although TSA demonstrated sufficient data and cumulative analysis crossed the TSA boundary, our results should be interpreted cautiously given the low quality of evidence.Registration: https://www.crd.york.ac.uk/prospero (CRD42022369212) on October 2022.
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Affiliation(s)
- Jae Hee Kuh
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Woo-Seok Jung
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Leerang Lim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Hae Kyung Yoo
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Jae-Woo Ju
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Ho-Jin Lee
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Won Ho Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea.
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Reiterer C, Fleischmann E, Kabon B, Taschner A, Kurz A, Adamowitsch N, von Sonnenburg MF, Fraunschiel M, Graf A. Hemodynamic effects of intraoperative 30% versus 80% oxygen concentrations: an exploratory analysis. Front Med (Lausanne) 2023; 10:1200223. [PMID: 37324125 PMCID: PMC10265637 DOI: 10.3389/fmed.2023.1200223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/05/2023] [Indexed: 06/17/2023] Open
Abstract
Background Supplemental oxygen leads to an increase in peripheral vascular resistance which finally increases systemic blood pressure in healthy subjects and patients with coronary artery disease, heart failure, undergoing heart surgery, and with sepsis. However, it is unknown whether this effect can also be observed in anesthetized patients having surgery. Thus, we evaluated in this exploratory analysis of a randomized controlled trial the effect of 80% versus 30% oxygen on intraoperative blood pressure and heart rate. Methods We present data from a previous study including 258 patients, who were randomized to a perioperative inspiratory FiO2 of 0.8 (128 patients) versus 0.3 (130 patients) for major abdominal surgery. Continuous arterial blood pressure values were recorded every three seconds and were exported from the electronic anesthesia record system. We calculated time-weighted average (TWA) and Average Real Variability (ARV) of mean arterial blood pressure and of heart rate. Results There was no significant difference in TWA of mean arterial pressure between the 80% (80 mmHg [76, 85]) and 30% (81 mmHg [77, 86]) oxygen group (effect estimate -0.16 mmHg, CI -1.83 to 1.51; p = 0.85). There was also no significant difference in TWA of heart rate between the 80 and 30% oxygen group (median TWA of heart rate in the 80% oxygen group: 65 beats.min-1 [58, 72], and in the 30% oxygen group: 64 beats.min-1 [58; 70]; effect estimate: 0.12 beats.min-1, CI -2.55 to 2.8, p = 0.94). Also for ARV values, no significant differences between groups could be detected. Conclusion In contrast to previous results, we did not observe a significant increase in blood pressure or a significant decrease in heart rate in patients, who received 80% oxygen as compared to patients, who received 30% oxygen during surgery and for the first two postoperative hours. Thus, hemodynamic effects of supplemental oxygen might play a negligible role in anesthetized patients. Clinical Trail Registration https://clinicaltrials.gov/ct2/show/NCT03366857?term=vienna&cond=oxygen&draw=2&rank=1.
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Affiliation(s)
- Christian Reiterer
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Outcome Research Consortium, Cleveland, OH, United States
| | - Edith Fleischmann
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Outcome Research Consortium, Cleveland, OH, United States
| | - Barbara Kabon
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Outcome Research Consortium, Cleveland, OH, United States
| | - Alexander Taschner
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Outcome Research Consortium, Cleveland, OH, United States
| | - Andrea Kurz
- Outcome Research Consortium, Cleveland, OH, United States
- Department of General Anesthesiology, Cleveland Clinic, Anesthesia Institute, Cleveland, OH, United States
- Department of General Anesthesiology, Emergency Medicine and Intensive Care Medicine, Medical University of Graz, Graz, Austria
| | - Nikolas Adamowitsch
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | | | - Melanie Fraunschiel
- IT Systems and Communications, Medical University of Vienna, Vienna, Austria
| | - Alexandra Graf
- Center for Medical Data Science, Medical University of Vienna, Vienna, Austria
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Stuby J, Kaserer A, Ott S, Ruetzler K, Rössler J. [Perioperative hyperoxia-More harmful than beneficial?]. DIE ANAESTHESIOLOGIE 2023; 72:342-347. [PMID: 37084143 DOI: 10.1007/s00101-023-01274-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/01/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND The ideal perioperative oxygen concentration is controversial and study results are inconsistent. OBJECTIVE Current knowledge on the beneficial and adverse effects of perioperative hyperoxia. MATERIAL AND METHODS Narrative review RESULTS: Perioperative hyperoxia is unlikely to increase the incidence of atelectasis, pulmonary or cardiovascular complications or mortality. Few and small potential beneficial effects, such as reduction of surgical wound infections or postoperative nausea and vomiting have been demonstrated. According to the current state of evidence, it is recommended to avoid perioperative hyperoxia and to aim for normoxia instead.
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Affiliation(s)
- Johann Stuby
- Institut für Anästhesiologie, Universitätsspital Zürich, 8091, Zürich, Schweiz.
| | - Alexander Kaserer
- Institut für Anästhesiologie, Universitätsspital Zürich, 8091, Zürich, Schweiz
| | - Sascha Ott
- Klinik für Kardioanästhesiologie und Intensivmedizin, Deutsches Herzzentrum Berlin, 13353, Berlin, Deutschland
- Klinik für Kardioanästhesiologie und Intensivmedizin, Charité Universitätsmedizin Berlin, 13353, Berlin, Deutschland
- DZHK (Deutsches Zentrum für Herz-Kreislauf-Forschung), Standort Berlin, Berlin, Deutschland
| | - Kurt Ruetzler
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, USA
- Department of General Anesthesia, Anesthesiology Institute, Cleveland Clinic, Cleveland, USA
| | - Julian Rössler
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, USA
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4
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Ditzhaus M, Genuneit J, Janssen A, Pauly M. CASANOVA: Permutation inference in factorial survival designs. Biometrics 2023; 79:203-215. [PMID: 34608996 DOI: 10.1111/biom.13575] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 09/16/2021] [Indexed: 11/30/2022]
Abstract
We propose inference procedures for general factorial designs with time-to-event endpoints. Similar to additive Aalen models, null hypotheses are formulated in terms of cumulative hazards. Deviations are measured in terms of quadratic forms in Nelson-Aalen-type integrals. Different from existing approaches, this allows to work without restrictive model assumptions as proportional hazards. In particular, crossing survival or hazard curves can be detected without a significant loss of power. For a distribution-free application of the method, a permutation strategy is suggested. The resulting procedures' asymptotic validity is proven and small sample performances are analyzed in extensive simulations. The analysis of a data set on asthma illustrates the applicability.
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Affiliation(s)
- Marc Ditzhaus
- Department of Statistics, TU Dortmund University, Dortmund, Germany
| | - Jon Genuneit
- Pediatric Epidemiology, Department of Pediatrics, Leipzig University, Leipzig, Germany
| | - Arnold Janssen
- Mathematical Institute, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - Markus Pauly
- Department of Statistics, TU Dortmund University, Dortmund, Germany
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Min WK, Jin S, Choi YJ, Won YJ, Lee K, Lim CH. Lung ultrasound score-based assessment of postoperative atelectasis in obese patients according to inspired oxygen concentration: A prospective, randomized-controlled study. Medicine (Baltimore) 2023; 102:e32990. [PMID: 36800571 PMCID: PMC9936007 DOI: 10.1097/md.0000000000032990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
BACKGROUND According to a recent meta-analysis, in patients with a body mass index (BMI) ≥ 30, a high fraction of inhaled oxygen (FiO2) did not increase postoperative atelectasis. However, a high FiO2 generally increases the risk of postoperative atelectasis. Therefore, this study aimed to evaluate the effect of FiO2 on the development of atelectasis in obese patients using the modified lung ultrasound score (LUSS). METHODS Patients were assigned to 4 groups: BMI ≥ 30: group A (n = 21) and group B (n = 20) and normal BMI: group C (n = 22) and group D (n = 21). Groups A and C were administered 100% O2 during preinduction and emergence and 50% O2 during anesthesia. Groups B and D received 40% O2 for anesthesia. The modified LUSS was assessed before and 20 min after arrival to the postanesthesia care unit (PACU). RESULTS The difference between the modified LUSS preinduction and PACU was significantly higher in group A with a BMI ≥ 30 (P = .006); however, there was an insignificant difference between groups C and D in the normal BMI group (P = .076). CONCLUSION High FiO2 had a greater effect on the development of atelectasis in obese patients than did low FiO2; however, in normal-weight individuals, FiO2 did not have a significant effect on postoperative atelectasis.
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Affiliation(s)
- Won Kee Min
- Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Gyeonggi- do, Republic of Korea
| | - Sejong Jin
- Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Gyeonggi- do, Republic of Korea
- Department of Neuroscience, Korea University College of Medicine, Seoul, Republic of Korea
| | - Yoon Ji Choi
- Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Gyeonggi- do, Republic of Korea
- * Correspondence: Yoon Ji Choi, Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, 123, Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi-do 15355, Republic of Korea (e-mail: )
| | - Young Ju Won
- Department of Anesthesiology and Pain Medicine, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kaehong Lee
- Department of Anesthesiology and Pain Medicine, Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Choon-Hak Lim
- Department of Anesthesiology and Pain Medicine, Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
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Figiel W, Niewiński G, Grąt M, Krawczyk M, Stypułkowski J, Lewandowski Z, Krasnodębski M, Patkowski W, Zieniewicz K. Postoperative Supplemental Oxygen in Liver Transplantation (PSOLT) does not reduce the rate of infections: results of a randomized controlled trial. BMC Med 2023; 21:51. [PMID: 36782227 PMCID: PMC9924861 DOI: 10.1186/s12916-023-02741-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 01/18/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND Despite inconsistent evidence, international guidelines underline the importance of perioperative hyperoxygenation in prevention of postoperative infections. Further, data on safety and efficacy of this method in liver transplant setting are lacking. The aim was to evaluate efficacy and safety of postoperative hyperoxygenation in prophylaxis of infections after liver transplantation. METHODS In this randomized controlled trial, patients undergoing liver transplantation were randomly assigned to either 28% or 80% fraction of inspired oxygen (FiO2) for 6 postoperative hours. Infections occurring during 30-day post-transplant period were the primary outcome measure. Secondary outcome measures included 90-day mortality, 90-day severe morbidity, 30-day pulmonary complications, durations of hospital and intensive care unit stay, and 5-day postoperative bilirubin concentration, alanine and aspartate transaminase activity, and international normalized ratio (INR) (clinicatrials.gov NCT02857855). RESULTS A total of 193 patients were included and randomized to 28% (n = 99) and 80% (n = 94) FiO2. With similar patient, operative, and donor characteristics in both groups, infections occurred in 34.0% (32/94) of patients assigned to 80% FiO2 as compared to 23.2% (23/99) of patients assigned to 28% FiO2 (p = 0.112). Patients randomized to 80% FiO2 more frequently developed severe complications (p = 0.035), stayed longer in the intensive care unit (p = 0.033), and had higher bilirubin concentration over first 5 post-transplant days (p = 0.043). No significant differences were found regarding mortality, duration of hospital stay, pulmonary complications, and 5-day aspartate and alanine transaminase activity and INR. CONCLUSIONS Postoperative hyperoxygenation should not be used for prophylaxis of infections after liver transplantation due to the lack of efficacy. TRIAL REGISTRATION ClinicalTrials.gov NCT02857855. Registered 7 July 2016.
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Affiliation(s)
- Wojciech Figiel
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Banacha 1A, 02-097, Warsaw, Poland
| | - Grzegorz Niewiński
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Banacha 1A, 02-097, Warsaw, Poland
| | - Michał Grąt
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Banacha 1A, 02-097, Warsaw, Poland.
| | - Marek Krawczyk
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Banacha 1A, 02-097, Warsaw, Poland
| | - Jan Stypułkowski
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Banacha 1A, 02-097, Warsaw, Poland
| | - Zbigniew Lewandowski
- Department of Epidemiology and Biostatistics, Medical University of Warsaw, Oczki 3, 02-007, Warsaw, Poland
| | - Maciej Krasnodębski
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Banacha 1A, 02-097, Warsaw, Poland
| | - Waldemar Patkowski
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Banacha 1A, 02-097, Warsaw, Poland
| | - Krzysztof Zieniewicz
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Banacha 1A, 02-097, Warsaw, Poland
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El Maleh Y, Fasquel C, Quesnel C, Garnier M. Updated meta-analysis on intraoperative inspired fraction of oxygen and the risk of surgical site infection in adults undergoing general and regional anesthesia. Sci Rep 2023; 13:2465. [PMID: 36774366 PMCID: PMC9922261 DOI: 10.1038/s41598-023-27588-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/04/2023] [Indexed: 02/13/2023] Open
Abstract
This updated meta-analysis aims at exploring whether the use of systematic high vs low intraoperative oxygen fraction (FiO2) may decrease the incidence of postoperative surgical site infection during general (GA) or regional anesthesia (RA). PubMed, Cochrane CENTRAL, ClinicalTrials.gov databases were searched from January 1st, 1999 and July, 1st 2022, for randomized and quasi-randomized controlled trials that included patients in a high and low FiO2 groups and reported the incidence of SSI. The meta-analysis was conducted with a DerSimonian and Laird random-effects model. Thirty studies (24 for GA and 6 for RA) totaling 18,055 patients (15,871 for GA and 2184 for RA) were included. We have low-to-moderate-quality evidence that high FiO2 (mainly 80%) was not associated with a reduction of SSI incidence compared to low FiO2 (mainly 30%) in all patients (RR 0.90, 95%CI 0.79-1.03). Moderate inconsistency existed between studies (I2 = 38%). Subgroup analyses showed a moderate protective effect in patients undergoing GA (RR 0.86, 95%CI 0.75-0.99) (low level of evidence), while high FiO2 was not associated with a reduction of SSI in patients undergoing RA (RR 1.17, 95%CI 0.90-1.52) (moderate level of evidence). Sensitivity analyses restricted to patients ventilated without nitrous oxide (n = 20 studies), to patients operated from abdominal surgeries (n = 21 studies), and to patients suffering from deep SSI (n = 13 studies), all showed the absence of any significant effect of high FiO2. As a conclusion there is no compelling evidence that high FiO2 can improve postoperative patient's outcome on its own when good SSI prevention practices are properly applied. Recent well-designed and adequately powered randomized controlled trials add further weight to these results.
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Affiliation(s)
- Yoann El Maleh
- Sorbonne University, GRC29, Assistance Publique-Hôpitaux de Paris (APHP), DMU DREAM, Anesthesiology and Critical Care Medicine Department, Tenon University Hospital, 4 rue de la Chine, 75020, Paris, France
| | - Charlotte Fasquel
- Centre Hospitalier Régional Universitaire de Brest, Service d'Anesthésie-Réanimation et Médecine Périopératoire, 29200, Brest, France
| | - Christophe Quesnel
- Sorbonne University, GRC29, Assistance Publique-Hôpitaux de Paris (APHP), DMU DREAM, Anesthesiology and Critical Care Medicine Department, Tenon University Hospital, 4 rue de la Chine, 75020, Paris, France
| | - Marc Garnier
- Sorbonne University, GRC29, Assistance Publique-Hôpitaux de Paris (APHP), DMU DREAM, Anesthesiology and Critical Care Medicine Department, Tenon University Hospital, 4 rue de la Chine, 75020, Paris, France.
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McKechnie T, Elder G, Ichhpuniani S, Chen AT, Logie K, Doumouras A, Hong D, Benko R, Eskicioglu C. Perioperative intravenous dexamethasone for patients undergoing colorectal surgery: a systematic review and meta-analysis. Int J Colorectal Dis 2023; 38:32. [PMID: 36759373 DOI: 10.1007/s00384-023-04327-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/28/2023] [Indexed: 02/11/2023]
Abstract
PURPOSE Dexamethasone is a glucocorticoid that is often administered intraoperatively as prophylaxis for postoperative nausea and vomiting (PONV). Several randomized controlled trials (RCTs) have examined its use in colorectal surgery. This systematic review aims to assess the postoperative impacts of dexamethasone use in colorectal surgery. METHODS MEDLINE, Embase, and CENTRAL were searched from database inception to January 2023. Articles were included if they compared perioperative intravenous dexamethasone to a control group in patients undergoing elective colorectal surgery in terms of postoperative morbidity. The primary outcomes were prolonged postoperative ileus (PPOI) and PONV. Secondary outcomes included postoperative infectious morbidity and return of bowel function. A pair-wise meta-analysis and GRADE assessment of the quality of evidence were performed. RESULTS After reviewing 3476 relevant citations, seven articles (five RCTs, two retrospective cohorts) met the inclusion criteria. Overall, 1568 patients received perioperative dexamethasone and 1459 patients received a control. Patients receiving perioperative dexamethasone experienced significantly less PPOI based on moderate-quality evidence (three studies, OR 0.46, 95%CI 0.28-0.74, p < 0.01). Time to first flatus was significantly reduced with intravenous dexamethasone. There was no difference between groups in terms of PONV (four studies, OR 0.90, 95%CI 0.64-1.27, p = 0.55), postoperative morbidity (OR 0.93, 95%CI 0.63-1.39, p = 0.74), or rate of postoperative infectious complications (seven studies, OR 0.74, 95%CI 0.55-1.01, p = 0.06). CONCLUSION This review presents moderate-quality evidence that perioperative intravenous dexamethasone may reduce PPOI and enhance the return of bowel function following elective colorectal surgery. There was no significant observed effect on PONV or postoperative infectious complications.
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Affiliation(s)
- Tyler McKechnie
- Division of General Surgery, Department of Surgery, McMaster University, Hamilton, ON, L8N 4A6, Canada
| | - Geoffrey Elder
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, L8N 4A6, Canada
| | - Simarpreet Ichhpuniani
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, L8N 4A6, Canada
| | - Andrew T Chen
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, L8N 4A6, Canada
| | - Kathleen Logie
- Division of General Surgery, Department of Surgery, McMaster University, Hamilton, ON, L8N 4A6, Canada
- Division of General Surgery, Department of Surgery, McMaster University. St. Joseph's Healthcare, 50 Charlton Avenue East, Hamilton, ON, L8N 4A6, Canada
| | - Aristithes Doumouras
- Division of General Surgery, Department of Surgery, McMaster University, Hamilton, ON, L8N 4A6, Canada
- Division of General Surgery, Department of Surgery, McMaster University. St. Joseph's Healthcare, 50 Charlton Avenue East, Hamilton, ON, L8N 4A6, Canada
| | - Dennis Hong
- Division of General Surgery, Department of Surgery, McMaster University, Hamilton, ON, L8N 4A6, Canada
- Division of General Surgery, Department of Surgery, McMaster University. St. Joseph's Healthcare, 50 Charlton Avenue East, Hamilton, ON, L8N 4A6, Canada
| | - Randy Benko
- Department of Anesthesia, McMaster University, Hamilton, ON, Canada
| | - Cagla Eskicioglu
- Division of General Surgery, Department of Surgery, McMaster University, Hamilton, ON, L8N 4A6, Canada.
- Division of General Surgery, Department of Surgery, McMaster University. St. Joseph's Healthcare, 50 Charlton Avenue East, Hamilton, ON, L8N 4A6, Canada.
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Seretny M, Barlow J, Sidebotham D. Multicentre randomised trials in anaesthesia: an analysis using Bayesian metrics. Anaesthesia 2023; 78:73-80. [PMID: 36128627 DOI: 10.1111/anae.15867] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2022] [Indexed: 12/13/2022]
Abstract
Are the results of randomised trials reliable and are p values and confidence intervals the best way of quantifying efficacy? Low power is common in medical research, which reduces the probability of obtaining a 'significant result' and declaring the intervention had an effect. Metrics derived from Bayesian methods may provide an insight into trial data unavailable from p values and confidence intervals. We did a structured review of multicentre trials in anaesthesia that were published in the New England Journal of Medicine, The Lancet, Journal of the American Medical Association, British Journal of Anaesthesia and Anesthesiology between February 2011 and November 2021. We documented whether trials declared a non-zero effect by an intervention on the primary outcome. We documented the expected and observed effect sizes. We calculated a Bayes factor from the published trial data indicating the probability of the data under the null hypothesis of zero effect relative to the alternative hypothesis of a non-zero effect. We used the Bayes factor to calculate the post-test probability of zero effect for the intervention (having assumed 50% belief in zero effect before the trial). We contacted all authors to estimate the costs of running the trials. The median (IQR [range]) hypothesised and observed absolute effect sizes were 7% (3-13% [0-25%]) vs. 2% (1-7% [0-24%]), respectively. Non-zero effects were declared for 12/56 outcomes (21%). The Bayes factor favouring a zero effect relative to a non-zero effect for these 12 trials was 0.000001-1.9, with post-test zero effect probabilities for the intervention of 0.0001-65%. The other 44 trials did not declare non-zero effects, with Bayes factors favouring zero effect of 1-688, and post-test probabilities of zero effect of 53-99%. The median (IQR [range]) study costs reported by 20 corresponding authors in US$ were $1,425,669 ($514,766-$2,526,807 [$120,758-$24,763,921]). We think that inadequate power and mortality as an outcome are why few trials declared non-zero effects. Bayes factors and post-test probabilities provide a useful insight into trial results, particularly when p values approximate the significance threshold.
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Affiliation(s)
- M Seretny
- Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand.,Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand
| | - J Barlow
- University of Auckland, Auckland, New Zealand
| | - D Sidebotham
- Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand.,Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand
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Pedersen SS, Holse C, Mathar CE, Chan MTV, Sessler DI, Liu Y, Zhang L, Kurz A, Jacka M, Torborg A, Biyase T, Montes FR, Wang CY, Pettit S, Devereaux PJ, Meyhoff CS. Intraoperative Inspiratory Oxygen Fraction and Myocardial Injury After Noncardiac Surgery: Results From an International Observational Study in Relation to Recent Controlled Trials. Anesth Analg 2022; 135:1021-1030. [PMID: 35417425 DOI: 10.1213/ane.0000000000006042] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Two trials reported that a high inspiratory oxygen fraction (F io2 ) does not promote myocardial infarction or death. Observational studies can provide larger statistical strength, but associations can be due to unobserved confounding. Therefore, we evaluated the association between intraoperative F io2 and cardiovascular complications in a large international cohort study to see if spurious associations were observed. METHODS We included patients from the Vascular events In noncardiac Surgery patIents cOhort evaluatioN (VISION) study, who were ≥45 years of age, scheduled for overnight hospital admission, and had intraoperative F io2 recorded. The primary outcome was myocardial injury after noncardiac surgery (MINS), and secondary outcomes included mortality and pneumonia, all within 30 postoperative days. Data were analyzed with logistic regression, adjusted for many baseline cardiovascular risk factors, and illustrated in relation to findings from 2 recent controlled trials. RESULTS We included 6588 patients with mean age of 62 years of whom 49% had hypertension. The median intraoperative F io2 was 0.46 (5%-95% range, 0.32-0.94). There were 808 patients (12%) with MINS. Each 0.10 increase in median F io2 was associated with a confounder-adjusted increase in odds for MINS: odds ratio (OR), 1.17 (95% confidence interval [CI], 1.12-1.23; P < .0001). MINS occurred in contrast with similar frequencies and no significant difference in controlled trials (2240 patients, 194 events), in which patients were given 80% vs 30% oxygen. Mortality was 2.4% and was not significantly associated with a median F io2 (OR, 1.07; 95% CI, 0.97-1.19 per 0.10 increase; P = .18), and 2.9% of patients had pneumonia (OR, 1.05; 95% CI, 0.95-1.15 per 0.10 increase; P = .34). CONCLUSIONS We observed an association between intraoperative F io2 and risk of myocardial injury within 30 days after noncardiac surgery, which contrasts with recent controlled clinical trials. F io2 was not significantly associated with mortality or pneumonia. Unobserved confounding presumably contributed to the observed association between F io2 and myocardial injury that is not supported by trials.
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Affiliation(s)
- Sofie S Pedersen
- From the Department of Anaesthesia and Intensive Care, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Cecilie Holse
- From the Department of Anaesthesia and Intensive Care, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Clara E Mathar
- From the Department of Anaesthesia and Intensive Care, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Matthew T V Chan
- Department of Anaesthesia and Intensive Care, Prince of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Daniel I Sessler
- Department of Outcomes Research, Cleveland Clinic, Cleveland, Ohio
| | - Yingzhi Liu
- Departments of Anesthesia and Intensive Care
| | - Lin Zhang
- Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Andrea Kurz
- Department of Outcomes Research, Cleveland Clinic, Cleveland, Ohio.,Department of General Anesthesiology, Cleveland Clinic, Cleveland, Ohio
| | - Mike Jacka
- Walter C. Mackenzie Health Sciences Centre, Edmonton, University of Alberta, Canada
| | - Alexandra Torborg
- Discipline of Anaesthesiology and Critical Care, Inkosi Albert Luthuli Central Hospital, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Congella, KwaZulu-Natal, South Africa
| | - Thuli Biyase
- Discipline of Anaesthesiology and Critical Care, Inkosi Albert Luthuli Central Hospital, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Congella, KwaZulu-Natal, South Africa
| | | | - Chew Yin Wang
- Department of Anaesthesiology, University of Malaya, Kuala Lumpur, Malaysia
| | - Shirley Pettit
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - P J Devereaux
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Christian S Meyhoff
- From the Department of Anaesthesia and Intensive Care, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
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11
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Gomes ET, Carbogim FDC, Lins RS, Lins-Filho RLDM, Poveda VDB, Püschel VADA. Effectiveness of supplemental oxygenation to prevent surgical site infections: A systematic review with meta-analysis. Rev Lat Am Enfermagem 2022; 30:e3648. [PMID: 36228236 PMCID: PMC9545934 DOI: 10.1590/1518-8345.6106.3648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/06/2022] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVE to assess the effectiveness of supplemental oxygenation with high FiO2 when compared to conventional FiO2 in the prevention of surgical site infection. METHOD an effectiveness systematic review with meta-analysis conducted in five international databases and portals. The research was guided by the following question: Which is the effectiveness of supplemental oxygenation with high FiO2 (greater than 80%) when compared to conventional FiO2 (from 30% to 35%) in the prevention of surgical site infections in adults? RESULTS fifteen randomized clinical trials were included. Although all the subgroups presented a general effect in favor of the intervention, colorectal surgeries had this relationship evidenced with statistical significance (I2=10%;X2=4.42; p=0.352). CONCLUSION inspired oxygen fractions greater than 80% during the perioperative period in colorectal surgeries have proved to be effective to prevent surgical site infections, reducing their incidence by up to 27% (p=0.006). It is suggested to conduct new studies in groups of patients subjected to surgeries from other specialties, such as cardiac and vascular. PROSPERO registration No.: 178,453.
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Affiliation(s)
- Eduardo Tavares Gomes
- Universidade de São Paulo, Escola de Enfermagem, São Paulo, SP,
Brazil., Universidade Federal de Pernambuco, Hospital das Clínicas, Recife,
PE, Brazil
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12
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Holst JM, Klitholm MP, Henriksen J, Vallentin MF, Jessen MK, Bolther M, Holmberg MJ, Høybye M, Lind PC, Granfeldt A, Andersen LW. Intraoperative Respiratory and Hemodynamic Strategies for Reducing Nausea, Vomiting, and Pain after Surgery: Systematic Review and Meta-Analysis. Acta Anaesthesiol Scand 2022; 66:1051-1060. [PMID: 35924389 PMCID: PMC9545575 DOI: 10.1111/aas.14127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 07/08/2022] [Accepted: 07/21/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Despite improved medical treatment strategies, post-operative pain, nausea, and vomiting remain major challenges. This systematic review investigated the relationship between perioperative respiratory and hemodynamic interventions and postoperative pain, nausea, and vomiting. METHODS PubMed and Embase were searched on March 8, 2021 for randomized clinical trials investigating the effect of perioperative respiratory or hemodynamic interventions in adults undergoing non-cardiac surgery. Investigators reviewed trials for relevance, extracted data, and assessed risk of bias. Meta-analyses were performed when feasible. GRADE was used to assess the certainty in the evidence. RESULTS This review included 65 original trials; of these 48% had pain, nausea and/or vomiting as the primary focus. No reduction of postoperative pain was found in meta-analyses when comparing recruitment maneuvers with no recruitment, high (80%) to low (30%) fraction of oxygen, low (5-7 ml/kg) to high (9-12 ml/kg) tidal volume, or goal-directed hemodynamic therapy to standard care. In the meta-analysis comparing recruitment maneuvers with no recruitment maneuvers, patients undergoing laparoscopic gynecological surgery had less shoulder pain 24 hours postoperatively (mean difference in the numeric rating scale from 0 to 10: -1.1, 95% CI: -1.7, -0.5). In meta-analyses, comparing high to low fraction of inspired oxygen and goal-directed hemodynamic therapy to standard care in patients undergoing abdominal surgery, the risk of postoperative nausea and vomiting was reduced (odds ratio: 0.45, 95% CI: 0.24, 0.87 and 0.48, 95% CI: 0.27, 0.85). The certainty in the evidence was mostly very low to low. The results should be considered exploratory given the lack of pre-specified hypotheses and corresponding risk of Type 1 errors. CONCLUSION There is limited evidence regarding the impact of intraoperative respiratory and hemodynamic interventions on postoperative pain or nausea and vomiting. More definitive trials are needed to guide clinical care within this area. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Johanne M Holst
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Maibritt P Klitholm
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Jeppe Henriksen
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Mikael F Vallentin
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Prehospital Emergency Medical Services, Central Denmark Region, Aarhus, Denmark
| | - Marie K Jessen
- Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Maria Bolther
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Mathias J Holmberg
- Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Anesthesiology and Intensive Care, Randers Regional Hospital, Randers, Denmark
| | - Maria Høybye
- Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Peter Carøe Lind
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Asger Granfeldt
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Lars W Andersen
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark.,Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Prehospital Emergency Medical Services, Central Denmark Region, Aarhus, Denmark
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13
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Nato CG, Tabacco L, Bilotta F. Fraud and retraction in perioperative medicine publications: what we learned and what can be implemented to prevent future recurrence. JOURNAL OF MEDICAL ETHICS 2022; 48:479-484. [PMID: 33990431 DOI: 10.1136/medethics-2021-107252] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 04/04/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
Fraud in medical publications is an increasing concern. In particular, disciplines related to perioperative medicine-including anaesthesia and critical care-currently hold the highest rankings in terms of retracted papers for research misconduct. The dominance of this dubious achievement is attributable to a limited number of researchers who have repeatedly committed scientific fraud. In the last three decades, six researchers have authored 421 of the 475 papers retracted in perioperative medicine. This narrative review reports on six cases of fabricated publication in perioperative medicine that resulted in the paper's retraction. The process that led to the unveiling of the fraud, the impact on clinical practice, and changes in regulatory mechanisms of scientific companies and governmental agencies' policies are also presented. Fraud in medical publications is a growing concern that affects perioperative medicine requiring a substantial number of papers to be retracted. The continuous control elicited by readers, by local institutional review boards, scientific journal reviewers, scientific societies and government agencies can play an important role in preserving the 'pact of trust' between authors, professionals and ultimately the relationship between doctors and patients.
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Affiliation(s)
- Consolato Gianluca Nato
- Department of Anaesthesiology, Critical Care and Pain Medicine, Umberto I Policlinico di Roma, Roma, Lazio, Italy
| | - Leonardo Tabacco
- Department of Anaesthesiology, Critical Care and Pain Medicine, Umberto I Policlinico di Roma, Roma, Lazio, Italy
| | - Federico Bilotta
- Department of Anaesthesiology, Critical Care and Pain Medicine, Umberto I Policlinico di Roma, Roma, Lazio, Italy
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14
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Høybye M, Lind PC, Holmberg MJ, Bolther M, Jessen MK, Vallentin MF, Hansen FB, Holst JM, Magnussen A, Hansen NS, Johannsen CM, Enevoldsen J, Jensen TH, Roessler LL, Klitholm MP, Eggertsen MA, Caap P, Boye C, Dabrowski KM, Vormfenne L, Henriksen J, Karlsson CM, Balleby IR, Rasmussen MS, Paelestik K, Granfeldt A, Andersen LW. Fraction of Inspired Oxygen During General Anesthesia for Non-Cardiac Surgery: Systematic Review and Meta-Analysis. Acta Anaesthesiol Scand 2022; 66:923-933. [PMID: 35675085 PMCID: PMC9543529 DOI: 10.1111/aas.14102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 05/19/2022] [Accepted: 05/28/2022] [Indexed: 12/02/2022]
Abstract
Background Controversy exists regarding the effects of a high versus a low intraoperative fraction of inspired oxygen (FiO2) in adults undergoing general anesthesia. This systematic review and meta‐analysis investigated the effect of a high versus a low FiO2 on postoperative outcomes. Methods PubMed and Embase were searched on March 22, 2022 for randomized clinical trials investigating the effect of different FiO2 levels in adults undergoing general anesthesia for non‐cardiac surgery. Two investigators independently reviewed studies for relevance, extracted data, and assessed risk of bias. Meta‐analyses were performed for relevant outcomes, and potential effect measure modification was assessed in subgroup analyses and meta‐regression. The evidence certainty was evaluated using GRADE. Results This review included 25 original trials investigating the effect of a high (mostly 80%) versus a low (mostly 30%) FiO2. Risk of bias was intermediate for all trials. A high FiO2 did not result in a significant reduction in surgical site infections (OR: 0.91, 95% CI 0.81–1.02 [p = .10]). No effect was found for all other included outcomes, including mortality (OR = 1.27, 95% CI: 0.90–1.79 [p = .18]) and hospital length of stay (mean difference = 0.03 days, 95% CI −0.25 to 0.30 [p = .84). Results from subgroup analyses and meta‐regression did not identify any clear effect modifiers across outcomes. The certainty of evidence (GRADE) was rated as low for most outcomes. Conclusions In adults undergoing general anesthesia for non‐cardiac surgery, a high FiO2 did not improve outcomes including surgical site infections, length of stay, or mortality. However, the certainty of the evidence was assessed as low.
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Affiliation(s)
- Maria Høybye
- Research Center for Emergency Medicine, Aarhus University Hospital, Denmark.,Department of Clinical Medicine, Aarhus University, Denmark
| | - Peter Carøe Lind
- Department of Surgical Gastroenterology, Aalborg University Hospital, Denmark
| | - Mathias J Holmberg
- Research Center for Emergency Medicine, Aarhus University Hospital, Denmark.,Department of Clinical Medicine, Aarhus University, Denmark.,Department of Cardiology, Viborg Regional Hospital, Viborg, Denmark
| | - Maria Bolther
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Denmark
| | - Marie K Jessen
- Research Center for Emergency Medicine, Aarhus University Hospital, Denmark.,Department of Clinical Medicine, Aarhus University, Denmark
| | - Mikael F Vallentin
- Department of Clinical Medicine, Aarhus University, Denmark.,Prehospital Emergency Medical Services, Central Denmark Region, Aarhus, Denmark
| | | | - Johanne M Holst
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Denmark
| | | | - Niklas S Hansen
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Denmark
| | | | | | - Thomas H Jensen
- Department of Internal Medicine, University Hospital of North Norway, Narvik, Norway
| | - Lara L Roessler
- Department of Emergency Medicine, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Maibritt P Klitholm
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Denmark
| | | | - Philip Caap
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Denmark
| | - Caroline Boye
- Department of Clinical Medicine, Aarhus University, Denmark
| | - Karol M Dabrowski
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Denmark
| | | | - Jeppe Henriksen
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Denmark
| | - C M Karlsson
- Department of Anesthesiology and Intensive Care, Aalborg University Hospital, Denmark
| | - Ida R Balleby
- National Hospital of the Faroe Islands, Torshavn, Faroe Islands
| | - Marie S Rasmussen
- Department of Anesthesiology and Intensive Care, Aalborg University Hospital, Denmark
| | - Kim Paelestik
- Department of Anesthesiology and Intensive Care, Viborg Regional Hospital, Viborg, Denmark
| | - Asger Granfeldt
- Department of Clinical Medicine, Aarhus University, Denmark.,Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Denmark
| | - Lars W Andersen
- Research Center for Emergency Medicine, Aarhus University Hospital, Denmark.,Department of Clinical Medicine, Aarhus University, Denmark.,Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Denmark.,Prehospital Emergency Medical Services, Central Denmark Region, Aarhus, Denmark
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15
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Mitchell C, Cheuk SJ, O'Donnell CM, Bampoe S, Walker D. What is the impact of dexamethasone on postoperative pain in adults undergoing general anaesthesia for elective abdominal surgery: a systematic review and meta-analysis. Perioper Med (Lond) 2022; 11:13. [PMID: 35321728 PMCID: PMC8942613 DOI: 10.1186/s13741-022-00243-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 10/27/2021] [Indexed: 11/29/2022] Open
Abstract
Background Previous meta-analysis of heterogeneous surgical cohorts demonstrated reduction in postoperative pain with perioperative intravenous dexamethasone, but none have addressed adults undergoing elective abdominal surgery. The aim of this study was to determine the impact of intravenous perioperative dexamethasone on postoperative pain in adults undergoing elective abdominal surgery under general anaesthesia. Methods This review was prospectively registered on the international prospective register of systematic reviews (CRD42020176202). Electronic databases Medical Analysis and Retrieval System Online (MEDLINE), Exerpta Medica Database (EMBASE), (CINAHL) Cumulative Index to Nursing and Allied Health Literature (CINAHL), Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science and trial registries were searched to January 28 2021 for randomised controlled trials, comparing dexamethasone to placebo or alternative antiemetic, that reported pain. The primary outcome was pain score, and secondary outcomes were time to first analgesia, opioid requirements and time to post-anaesthesia care unit (PACU) discharge. Results Fifty-two studies (5768 participants) were included in the meta-analysis. Pain scores ≤ 4 hour (h) were reduced in patients who received dexamethasone at rest (mean difference (MD), − 0.54, 95% confidence interval (CI) − 0.72 to − 0.35, I2 = 81%) and on movement (MD − 0.42, 95% CI − 0.62 to − 0.22, I2 = 35). In the dexamethasone group, 4–24 h pain scores were less at rest (MD − 0.31, 95% CI − 0.47 to − 0.14, I2 = 96) and on movement (MD − 0.26, 95% CI − 0.39 to − 0.13, I2 = 29) and pain scores ≥ 24 h were reduced at rest (MD − 0.38, 95% CI − 0.52 to − 0.24, I2 = 88) and on movement (MD − 0.38, 95% CI − 0.65 to − 0.11, I2 = 71). Time to first analgesia (minutes) was increased (MD 22.92, 95% CI 11.09 to 34.75, I2 = 98), opioid requirements (mg oral morphine) decreased (MD − 6.66, 95% CI − 9.38 to − 3.93, I2 = 88) and no difference in time to PACU discharge (MD − 3.82, 95% CI − 10.87 to 3.23, I2 = 59%). Conclusions Patients receiving dexamethasone had reduced pain scores, postoperative opioid requirements and longer time to first analgesia. Dexamethasone is an effective analgesic adjunct for patients undergoing abdominal surgery. Supplementary Information The online version contains supplementary material available at 10.1186/s13741-022-00243-6.
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Affiliation(s)
- C Mitchell
- Department of Anaesthesia, Ulster Hospital, Dundonald, Belfast, Northern Ireland
| | - S J Cheuk
- Department of Anaesthesia, Royal Belfast Hospital for Sick Children, Royal Group of Hospitals, Belfast, Northern Ireland
| | - C M O'Donnell
- Department of Anaesthesia, Royal Victoria Hospital, Royal Group of Hospitals, Belfast, Northern Ireland
| | - S Bampoe
- UCL Centre for Perioperative Medicine, University College London, London, UK
| | - D Walker
- UCL Centre for Perioperative Medicine, University College London, London, UK.
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16
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Gomes ET, Carbogim FDC, Lins RS, Lins-Filho RLDM, Poveda VDB, Püschel VADA. Efectividad de la oxigenación suplementaria para prevenir la infección del sitio quirúrgico: revisión sistemática con metaanálisis. Rev Lat Am Enfermagem 2022. [DOI: 10.1590/1518-8345.6106.3647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Resumen Objetivo: evaluar la efectividad de la oxigenación suplementaria con FiO2 elevada en comparación con la FiO2 convencional para prevenir la infección del sitio quirúrgico. Método: revisión sistemática de eficacia con metaanálisis en cinco bases de datos y portales internacionales. La investigación se guio por la pregunta: ¿Qué tan eficaz es la oxigenación suplementaria con FiO2 alta (más del 80%) en comparación con la FiO2 convencional (del 30 al 35%) para prevenir la infección del sitio quirúrgico en adultos? Resultados: se incluyeron quince ensayos clínicos aleatorizados. Aunque todos los subgrupos mostraron un efecto general a favor de la intervención, en las cirugías colorrectales esa relación tenía significancia estadística (I2=10%; X²=4,42; p=0,352). Conclusión: una fracción inspirada de oxígeno superior al 80% durante el perioperatorio en cirugías colorrectales ha demostrado ser eficaz en la prevención de la infección del sitio quirúrgico, reduciendo su incidencia hasta en un 27% (p=0,006). Se sugiere realizar más estudios en grupos de pacientes sometidos a cirugías en otras especialidades, como cardiaca y vascular. Registro PROSPERO: 178453.
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17
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Permutation test for the multivariate coefficient of variation in factorial designs. J MULTIVARIATE ANAL 2022. [DOI: 10.1016/j.jmva.2021.104848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Dehne S, Spang V, Klotz R, Kummer L, Kilian S, Hoffmann K, Schneider MA, Hackert T, Büchler MW, Weigand MA, Larmann J. Intraoperative Fractions of Inspiratory Oxygen Are Associated With Recurrence-Free Survival After Elective Cancer Surgery. Front Med (Lausanne) 2021; 8:761786. [PMID: 34901078 PMCID: PMC8661123 DOI: 10.3389/fmed.2021.761786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 11/01/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Choice of the fraction of inspiratory oxygen (FiO2) is controversial. The objective of this analysis was to evaluate whether intraoperative FiO2 was associated with recurrence-free survival after elective cancer surgery. Methods and Analysis: In this single-center, retrospective study, we analyzed 1,084 patients undergoing elective resection of pancreatic (n = 652), colorectal (n = 405), or hepatic cancer (n = 27) at Heidelberg University Hospital between 2009 and 2016. Intraoperative mean FiO2 values were calculated. For unstratified analyses, the study cohort was equally divided into a low- and a high-FiO2 group. For cancer-stratified analyses, this division was done within cancer-strata. The primary outcome measure was recurrence-free survival until the last known follow-up. Groups were compared using Kaplan–Meier analysis. A stratified log rank test was used to control for different FiO2 levels and survival times between the cancer strata. Cox-regression analyses were used to control for covariates. Sepsis, reoperations, surgical-site infections, and cardiovascular events during hospital stay and overall survival were secondary outcomes. Results: Median FiO2 was 40.9% (Q1–Q3, 38.3–42.9) in the low vs. 50.4% (Q1–Q3, 47.4–54.7) in the high-FiO2 group. Median follow-up was 3.28 (Q1–Q3, 1.68–4.97) years. Recurrence-free survival was considerable higher in the high-FiO2 group (p < 0.001). This effect was also confirmed when stratified for the different tumor entities (p = 0.007). In colorectal cancer surgery, increased FiO2 was independently associated with increased recurrence-free survival. The hazard for the primary outcome decreased by 3.5% with every 1% increase in FiO2. The effect was not seen in pancreatic cancer surgery and we did not find differences in any of the secondary endpoints. Conclusions: Until definite evidence from large-scale trials is available and in the absence of relevant clinical conditions warranting specific FiO2 values, perioperative care givers should aim for an intraoperative FiO2 of 50% in abdominal cancer surgery as this might benefit oncological outcomes.
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Affiliation(s)
- Sarah Dehne
- Department of Anesthesiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Verena Spang
- Department of Anesthesiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Rosa Klotz
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Laura Kummer
- Department of Anesthesiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Samuel Kilian
- Institute of Medical Biometry, University Heidelberg, Heidelberg, Germany
| | - Katrin Hoffmann
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Martin A Schneider
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Thilo Hackert
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Markus W Büchler
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Markus A Weigand
- Department of Anesthesiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Jan Larmann
- Department of Anesthesiology, University Hospital Heidelberg, Heidelberg, Germany
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19
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QANOVA: quantile-based permutation methods for general factorial designs. TEST-SPAIN 2021. [DOI: 10.1007/s11749-021-00758-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractPopulation means and standard deviations are the most common estimands to quantify effects in factorial layouts. In fact, most statistical procedures in such designs are built toward inferring means or contrasts thereof. For more robust analyses, we consider the population median, the interquartile range (IQR) and more general quantile combinations as estimands in which we formulate null hypotheses and calculate compatible confidence regions. Based upon simultaneous multivariate central limit theorems and corresponding resampling results, we derive asymptotically correct procedures in general, potentially heteroscedastic, factorial designs with univariate endpoints. Special cases cover robust tests for the population median or the IQR in arbitrary crossed one-, two- and higher-way layouts with potentially heteroscedastic error distributions. In extensive simulations, we analyze their small sample properties and also conduct an illustrating data analysis comparing children’s height and weight from different countries.
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20
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Maheshwari K. Principles for minimizing oxygen debt: can they translate to clinical application and improve outcomes? Best Pract Res Clin Anaesthesiol 2021; 35:543-549. [PMID: 34801216 DOI: 10.1016/j.bpa.2020.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/08/2020] [Accepted: 09/19/2020] [Indexed: 01/28/2023]
Abstract
Oxygen delivery is dependent on pulmonary gas exchange, cardiac output, blood oxygen-carrying capacity, and tissue oxygen extraction. Reduction in oxygen delivery or higher oxygen consumption can initiate complex protective cellular processes precipitating oxygen debt. In critically ill and potentially surgical patients, stress and consequent hormonal or metabolic changes can trigger oxygen debt which is associated with worse morbidity and mortality. Increase in oxygen delivery by augmenting cardiac output or by increasing fraction of inspired oxygen (FiO2) can help reduce oxygen debt. However, the extent of oxygen debt in an individual patient is poorly defined and difficult to measure. Furthermore, large heterogeneity in clinical trials assessing outcomes benefit of increasing oxygen delivery limits our ability to recommend goal directed fluid therapy aimed at increasing cardiac ouput or higher FiO2. To understand and prevent oxygen debt in critically ill and surgical patients, we need to develop continuous monitoring techniques to assess the balance of oxygen delivery and consumption. Furthermore, methods of increasing oxygen delivery like goal-directed fluid therapy, higher FiO2 and anemia prevention should be rigorously evaluated with focus on establishing outcomes benefit.
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Affiliation(s)
- Kamal Maheshwari
- Department of General Anesthesiology, Cleveland Clinic, Cleveland, OH, USA; Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA. http://www.OR.org
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Lim CH, Han JY, Cha SH, Kim YH, Yoo KY, Kim HJ. Effects of high versus low inspiratory oxygen fraction on postoperative clinical outcomes in patients undergoing surgery under general anesthesia: A systematic review and meta-analysis of randomized controlled trials. J Clin Anesth 2021; 75:110461. [PMID: 34521067 DOI: 10.1016/j.jclinane.2021.110461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 07/07/2021] [Accepted: 07/11/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVES To determine whether high perioperative inspired oxygen fraction (FiO2) compared with low FiO2 has more deleterious postoperative clinical outcomes in patients undergoing non-thoracic surgery under general anesthesia. DESIGN Meta-analysis of randomized controlled trials. SETTING Operating room, postoperative recovery room and surgical ward. PATIENTS Surgical patients under general anesthesia. INTERVENTION High perioperative FiO2 (≥0.8) vs. low FiO2 (≤0.5). MEASUREMENTS The primary outcome was mortality within 30 days. Secondary outcomes were pulmonary outcomes (atelectasis, pneumonia, respiratory failure, postoperative pulmonary complications [PPCs], and postoperative oxygen parameters), intensive care unit (ICU) admissions, and length of hospital stay. A subgroup analysis was performed to explore the treatment effect by body mass index (BMI). MAIN RESULTS Twenty-six trials with a total 4991 patients were studied. The mortality in the high FiO2 group did not differ from that in the low FiO2 group (risk ratio [RR] 0.91, 95% confidence interval [CI] 0.42-1.97, P = 0.810). Nor were there any significant differences between the groups in such outcomes as pneumonia (RR 1.19, 95% CI 0.74-1.92, P = 0.470), respiratory failure (RR 1.29, 95% CI 0.82-2.04, P = 0.270), PPCs (RR 1.05, 95% CI 0.69-1.59, P = 0.830), ICU admission (RR 0.94, 95% CI 0.55-1.60, P = 0.810), and length of hospital stay (mean difference [MD] 0.27 d, 95% CI -0.28-0.81, P = 0.340). The high FiO2 was associated with postoperative atelectasis more often (risk ratio 1.27, 95% CI 1.00-1.62, P = 0.050), and lower postoperative arterial partial oxygen pressure (MD -5.03 mmHg, 95% CI -7.90- -2.16, P < 0.001). In subgroup analysis of BMI >30 kg/m2, these parameters were similarly affected between the groups. CONCLUSIONS The use of high FiO2 compared to low FiO2 did not affect the short-term mortality, although it may increase the incidence of atelectasis in adult, non-thoracic patients undergoing surgical procedures. Nor were there any significant differences in other secondary outcomes.
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Affiliation(s)
- Choon-Hak Lim
- Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University, Seoul, South Korea
| | - Ju-Young Han
- College of Medicine, Korea University, Seoul, South Korea
| | - Seung-Ha Cha
- Department of Radiology, Korea University Anam Hospital, Korea University Medical Center, Seoul, South Korea
| | - Yun-Hee Kim
- Department of Anesthesiology and Pain Medicine, Hanyang University Hanmaeum Changwon Hospital, Changwon, South Korea
| | - Kyung-Yeon Yoo
- Department of Anesthesiology and Pain Medicine, Chonnam National University Medical School, Gwangju, South Korea
| | - Hyun-Jung Kim
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, South Korea.
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Ristescu AI, Tiron CE, Tiron A, Grigoras I. Exploring Hyperoxia Effects in Cancer-From Perioperative Clinical Data to Potential Molecular Mechanisms. Biomedicines 2021; 9:biomedicines9091213. [PMID: 34572400 PMCID: PMC8470547 DOI: 10.3390/biomedicines9091213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/06/2021] [Accepted: 09/10/2021] [Indexed: 12/15/2022] Open
Abstract
Increased inspiratory oxygen concentration is constantly used during the perioperative period of cancer patients to prevent the potential development of hypoxemia and to provide an adequate oxygen transport to the organs, tissues and cells. Although the primary tumours are surgically removed, the effects of perioperative hyperoxia exposure on distal micro-metastases and on circulating cancer cells can potentially play a role in cancer progression or recurrence. In clinical trials, hyperoxia seems to increase the rate of postoperative complications and, by delaying postoperative recovery, it can alter the return to intended oncological treatment. The effects of supplemental oxygen on the long-term mortality of surgical cancer patients offer, at this point, conflicting results. In experimental studies, hyperoxia effects on cancer biology were explored following multiple pathways. In cancer cell cultures and animal models, hyperoxia increases the production of reactive oxygen species (ROS) and increases the oxidative stress. These can be followed by the induction of the expression of Brain-derived neurotrophic factor (BDNF) and other molecules involved in angiogenesis and by the promotion of various degrees of epithelial mesenchymal transition (EMT).
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Affiliation(s)
- Anca Irina Ristescu
- Department of Anaesthesia and Intensive Care, School of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.I.R.); (I.G.)
- Department of Anaesthesia and Intensive Care, Regional Institute of Oncology, 700483 Iasi, Romania
| | - Crina Elena Tiron
- TRANSCEND Research Centre, Regional Institute of Oncology, 700483 Iasi, Romania;
| | - Adrian Tiron
- TRANSCEND Research Centre, Regional Institute of Oncology, 700483 Iasi, Romania;
- Correspondence:
| | - Ioana Grigoras
- Department of Anaesthesia and Intensive Care, School of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.I.R.); (I.G.)
- Department of Anaesthesia and Intensive Care, Regional Institute of Oncology, 700483 Iasi, Romania
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Young PJ, Frei D. Oxygen therapy for critically Ill and post-operative patients. J Anesth 2021; 35:928-938. [PMID: 34490494 PMCID: PMC8420843 DOI: 10.1007/s00540-021-02996-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 08/28/2021] [Indexed: 11/02/2022]
Abstract
Nearly all patients receiving treatment in a peri-operative or intensive care setting receive supplemental oxygen therapy. It is biologically plausible that the dose of oxygen used might affect important patient outcomes. Most peri-operative research has focussed on oxygen regimens that target higher than normal blood oxygen levels. Whereas, intensive care research has mostly focussed on conservative oxygen regimens which assiduously avoid exposure to higher than normal blood oxygen levels. While such conservative oxygen therapy is preferred for spontaneously breathing patients with chronic obstructive pulmonary disease, the optimal oxygen regimen in other patient groups is not clear. Some data suggest that conservative oxygen therapy might be preferred for patients with hypoxic ischaemic encephalopathy. However, unless oxygen supplies are constrained, routinely aggressively down-titrating oxygen in either the peri-operative or intensive care setting is not necessary based on available data. Targeting higher than normal levels of oxygen might reduce surgical site infections in the perioperative setting and/or improve outcomes for intensive care patients with sepsis but further research is required and available data are not sufficiently strong to warrant routine implementation of such oxygen strategies.
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Affiliation(s)
- Paul J Young
- Medical Research Institute of New Zealand, Private Bag 7902, Wellington, 6242, New Zealand. .,Intensive Care Unit, Wellington Regional Hospital, Wellington, New Zealand. .,Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia. .,Department of Critical Care, University of Melbourne, Parkville, VIC, Australia.
| | - Daniel Frei
- Medical Research Institute of New Zealand, Private Bag 7902, Wellington, 6242, New Zealand.,Department of Anaesthesia, Wellington Regional Hospital, Wellington, New Zealand
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Feeley AA, Feeley TB, Feeley IH, Sheehan E. Postoperative Infection Risk in Total Joint Arthroplasty After Perioperative IV Corticosteroid Administration: A Systematic Review and Meta-Analysis of Comparative Studies. J Arthroplasty 2021; 36:3042-3053. [PMID: 33902983 DOI: 10.1016/j.arth.2021.03.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/16/2021] [Accepted: 03/31/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Perioperative corticosteroid administration is associated with reduced postoperative nausea, pain, and enhanced recovery after surgery. However, potential complications including wound and periprosthetic joint infections remain a concern for surgeons after total joint arthroplasty (TJA). METHODS A systematic review of the search databases PubMed, Google Scholar, and EMBASE was made in January 2021 to identify comparative studies evaluating infection risk after perioperative corticosteroid administration in TJA. PRISMA guidelines were used for this review. Meta-analysis was used to assess infection risk in accordance with joint and corticosteroid dosing regimen used. RESULTS 201 studies were returned after initial search strategy, with 29 included for review after application of inclusion and exclusion criteria. Studies were categorized as using low- or high-dose corticosteroid with single or repeat dosing regimens. Single low-dose corticosteroid administration was not associated with an increased risk of infection (P = .4; CI = 0.00-0.00). Single high-dose corticosteroid was not associated with an increased infection risk (P = .3; CI = 0.00-0.01) nor did repeat low-dose regimens result in increased risk of infection (P = .8; CI = -0.02-0.02). Studies assessing repeat high-dosing regimens reported no increased infection, with small numbers of participants included. No significant risk difference in infection risk was noted in hip (P = .59; CI = -0.03-0.02) or knee (P = .2; CI = 0.00-0.01) arthroplasty. Heterogeneity in patient profiles included in studies to date was noted. CONCLUSION Use of perioperative corticosteroid in TJA does not appear to be associated with increased risk of postoperative infection in patients with limited comorbidities. Further research is warranted to evaluate postoperative complications after TJA in these at-risk patient populations.
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Affiliation(s)
- Aoife A Feeley
- Department of Orthopaedics, Midland Regional Hospital Tullamore, Puttaghan, Tullamore, Ireland
| | - Tara B Feeley
- Department of Anaesthetics, Starship Children's Hospital, Auckland, New Zealand
| | - Iain H Feeley
- Department of Orthopaedics, National Orthopaedic Hospital Cappagh, Cappoge, Dublin, Ireland
| | - Eoin Sheehan
- Department of Orthopaedics, Midland Regional Hospital Tullamore, Puttaghan, Tullamore, Ireland
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Corcoran TB, Myles PS, Forbes AB, Cheng AC, Bach LA, O'Loughlin E, Leslie K, Chan MTV, Story D, Short TG, Martin C, Coutts P, Ho KM. Dexamethasone and Surgical-Site Infection. N Engl J Med 2021; 384:1731-1741. [PMID: 33951362 DOI: 10.1056/nejmoa2028982] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND The glucocorticoid dexamethasone prevents nausea and vomiting after surgery, but there is concern that it may increase the risk of surgical-site infection. METHODS In this pragmatic, international, noninferiority trial, we randomly assigned 8880 adult patients who were undergoing nonurgent, noncardiac surgery of at least 2 hours' duration, with a skin incision length longer than 5 cm and a postoperative overnight hospital stay, to receive 8 mg of intravenous dexamethasone or matching placebo while under anesthesia. Randomization was stratified according to diabetes status and trial center. The primary outcome was surgical-site infection within 30 days after surgery. The prespecified noninferiority margin was 2.0 percentage points. RESULTS A total of 8725 participants were included in the modified intention-to-treat population (4372 in the dexamethasone group and 4353 in the placebo group), of whom 13.2% (576 in the dexamethasone group and 572 in the placebo group) had diabetes mellitus. Of the 8678 patients included in the primary analysis, surgical-site infection occurred in 8.1% (354 of 4350 patients) assigned to dexamethasone and in 9.1% (394 of 4328) assigned to placebo (risk difference adjusted for diabetes status, -0.9 percentage points; 95.6% confidence interval [CI], -2.1 to 0.3; P<0.001 for noninferiority). The results for superficial, deep, and organ-space surgical-site infections and in patients with diabetes were similar to those of the primary analysis. Postoperative nausea and vomiting in the first 24 hours after surgery occurred in 42.2% of patients in the dexamethasone group and in 53.9% in the placebo group (risk ratio, 0.78; 95% CI, 0.75 to 0.82). Hyperglycemic events in patients without diabetes occurred in 22 of 3787 (0.6%) in the dexamethasone group and in 6 of 3776 (0.2%) in the placebo group. CONCLUSIONS Dexamethasone was noninferior to placebo with respect to the incidence of surgical-site infection within 30 days after nonurgent, noncardiac surgery. (Funded by the Australian National Health and Medical Research Council and others; PADDI Australian New Zealand Clinical Trials Registry number, ACTRN12614001226695.).
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Affiliation(s)
- Tomás B Corcoran
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Paul S Myles
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Andrew B Forbes
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Allen C Cheng
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Leon A Bach
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Edmond O'Loughlin
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Kate Leslie
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Matthew T V Chan
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - David Story
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Timothy G Short
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Catherine Martin
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Pauline Coutts
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
| | - Kwok M Ho
- From Royal Perth Hospital (T.B.C., P.C., K.M.H.), the University of Western Australia (T.B.C., E.O., K.M.H.), Murdoch University (K.M.H.), and Fiona Stanley Hospital (E.O.), Perth, and the Alfred Hospital (P.S.M., A.C.C., L.A.B.), Monash University (T.B.C., P.S.M., A.B.F., A.C.C., L.A.B., K.L., C.M.), the University of Melbourne (K.L., D.S.), and Royal Melbourne Hospital (K.L.), Melbourne, VIC - all in Australia; the Chinese University of Hong Kong, Hong Kong (M.T.V.C.); and Auckland City Hospital and the University of Auckland - both in Auckland, New Zealand (T.G.S.)
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The Japan Society for Surgical Infection: guidelines for the prevention, detection, and management of gastroenterological surgical site infection, 2018. Surg Today 2020; 51:1-31. [PMID: 33320283 PMCID: PMC7788056 DOI: 10.1007/s00595-020-02181-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2020] [Indexed: 12/27/2022]
Abstract
Background The guidelines for the prevention, detection, and management of gastroenterological surgical site infections (SSIs) were published in Japanese by the Japan Society for Surgical Infection in 2018. This is a summary of these guidelines for medical professionals worldwide. Methods We conducted a systematic review and comprehensive evaluation of the evidence for diagnosis and treatment of gastroenterological SSIs, based on the concepts of the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system. The strength of recommendations was graded and voted using the Delphi method and the nominal group technique. Modifications were made to the guidelines in response to feedback from the general public and relevant medical societies. Results There were 44 questions prepared in seven subject areas, for which 51 recommendations were made. The seven subject areas were: definition and etiology, diagnosis, preoperative management, prophylactic antibiotics, intraoperative management, perioperative management, and wound management. According to the GRADE system, we evaluated the body of evidence for each clinical question. Based on the results of the meta-analysis, recommendations were graded using the Delphi method to generate useful information. The final version of the recommendations was published in 2018, in Japanese. Conclusions The Japanese Guidelines for the prevention, detection, and management of gastroenterological SSI were published in 2018 to provide useful information for clinicians and improve the clinical outcome of patients. Electronic supplementary material The online version of this article (10.1007/s00595-020-02181-6) contains supplementary material, which is available to authorized users.
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Mele TS, Kaafarani HMA, Guidry CA, Loor MM, Machado-Aranda D, Mendoza AE, Morris-Stiff G, Rattan R, Schubl SD, Barie PS. Surgical Infection Society Research Priorities: A Narrative Review of Fourteen Years of Progress. Surg Infect (Larchmt) 2020; 22:568-582. [PMID: 33275862 DOI: 10.1089/sur.2020.309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background: In 2006, the Surgical Infection Society (SIS) utilized a modified Delphi approach to define 15 specific priority research questions that remained unanswered in the field of surgical infections. The aim of the current study was to evaluate the scientific progress achieved during the ensuing period in answering each of the 15 research questions and to determine if additional research in these fields is warranted. Methods: For each of the questions, a literature search using the National Center for Biotechnology Information (NCBI) was performed by the Scientific Studies Committee of the SIS to identify studies that attempted to address each of the defined questions. This literature was analyzed and summarized. The data on each question were evaluated by a surgical infections expert to determine if the question was answered definitively or remains unanswered. Results: All 15 priority research questions were studied in the last 14 years; six questions (40%) were definitively answered and 9 questions (60%) remain unanswered in whole or in part, mainly because of the low quality of the studies available on this topic. Several of the 9 unanswered questions were deemed to remain research priorities in 2020 and warrant further investigation. These included, for example, the role of empiric antimicrobial agents in nosocomial infections, the use of inotropes/vasopressors versus volume loading to raise the mean arterial pressure, and the role of increased antimicrobial dosing and frequency in the obese patient. Conclusions: Several surgical infection-related research questions prioritized in 2006 remain unanswered. Further high-quality research is required to provide a definitive answer to many of these priority knowledge gaps. An updated research agenda by the SIS is warranted at this time to define research priorities for the future.
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Affiliation(s)
- Tina S Mele
- Divisions of General Surgery and Critical Care, Department of Surgery, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Haytham M A Kaafarani
- Division of Trauma, Emergency Surgery, and Surgical Critical Care, Department of Surgery Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Christopher A Guidry
- Department of Surgery, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Michele M Loor
- Department of Surgery, Baylor College of Medicine, Houston, Texas, USA
| | - David Machado-Aranda
- Division of Acute Care Surgery, Michigan Medicine and Ann Arbor Veterans' Affairs Health System, Ann Arbor, Michigan, USA
| | - April E Mendoza
- Division of Trauma, Emergency Surgery, and Surgical Critical Care, Department of Surgery Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gareth Morris-Stiff
- Department of Surgery, Case Western Reserve University, Cleveland, Ohio, USA
| | - Rishi Rattan
- Division of Trauma Surgery and Critical Care, DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Sebastian D Schubl
- Department of Surgery, University of California, Irvine, California, USA
| | - Philip S Barie
- Division of Trauma Burns, Acute and Critical Care, Department of Surgery, and Division of Medical Ethics, Department of Medicine, Weill Cornell Medicine, New York, New York, USA
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Fasquel C, Huet O, Ozier Y, Quesnel C, Garnier M. Effects of intraoperative high versus low inspiratory oxygen fraction (FiO2) on patient's outcome: A systematic review of evidence from the last 20 years. Anaesth Crit Care Pain Med 2020; 39:847-858. [DOI: 10.1016/j.accpm.2020.07.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/20/2020] [Accepted: 07/29/2020] [Indexed: 12/19/2022]
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Smith BK, Roberts RH, Frizelle FA. O 2 No Longer the Go 2: A Systematic Review and Meta-Analysis Comparing the Effects of Giving Perioperative Oxygen Therapy of 30% FiO 2 to 80% FiO 2 on Surgical Site Infection and Mortality. World J Surg 2020; 44:69-77. [PMID: 31605182 DOI: 10.1007/s00268-019-05224-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To determine the effects of perioperative high (80%) versus low (30%) fraction of inspired oxygen (FiO2) on surgical site infection (SSI) and mortality in adult surgical patients. BACKGROUND The routine use of high fraction perioperative oxygen in patients is "standard of care" and recommended by the World Health Organisation; however, whether there is truly any benefit to this therapy has been challenged by some authors. Questions have also been raised about the possibility of harm from oxygen therapy. METHOD Randomised control trials comparing high-to-low FiO2 were located by searching MEDLINE, Embase, CENTRAL and Web of Science. The primary outcomes were SSI up to 15 days and up to any time point postoperatively and mortality up to 30 days. The data were analysed using random effects meta-analysis. RESULTS Twelve studies involving 10,212 participants were included. At 15 days postoperatively, and at the longest point of post-operative follow-up, there was no statistically significant reduction in the risk of SSI when comparing patients who received a perioperative FiO2 of 30% to those with an FiO2 of 80% (RR 1.41, 95% CI 1.00-2.01, p 0.05 and RR 1.23, 95% CI 1.00-1.51, p 0.05). There was no statistically significant difference in mortality between the 30% FiO2 and the 80% FiO2 groups (RR 1.12, 95% CI 0.56-2.22, p 0.76). CONCLUSION This meta-analysis showed no statistically significant difference in post-operative SSI or mortality when comparing patients receiving an FiO2 of 80% to those receiving an FiO2 of 30%.
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Affiliation(s)
- Brianna K Smith
- Christchurch Public Hospital, Canterbury District Health Board, 2 Riccarton Ave, Christchurch Central, Christchurch, 8011, New Zealand.
| | - Ross H Roberts
- Department of General Surgery at Christchurch Public Hospital, Canterbury District Health Board, Christchurch, New Zealand
- University of Otago Christchurch, Christchurch, New Zealand
| | - Frank A Frizelle
- Department of General Surgery at Christchurch Public Hospital, Canterbury District Health Board, Christchurch, New Zealand
- University of Otago Christchurch, Christchurch, New Zealand
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Weibel S, Rücker G, Eberhart LH, Pace NL, Hartl HM, Jordan OL, Mayer D, Riemer M, Schaefer MS, Raj D, Backhaus I, Helf A, Schlesinger T, Kienbaum P, Kranke P. Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta-analysis. Cochrane Database Syst Rev 2020; 10:CD012859. [PMID: 33075160 PMCID: PMC8094506 DOI: 10.1002/14651858.cd012859.pub2] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Postoperative nausea and vomiting (PONV) is a common adverse effect of anaesthesia and surgery. Up to 80% of patients may be affected. These outcomes are a major cause of patient dissatisfaction and may lead to prolonged hospital stay and higher costs of care along with more severe complications. Many antiemetic drugs are available for prophylaxis. They have various mechanisms of action and side effects, but there is still uncertainty about which drugs are most effective with the fewest side effects. OBJECTIVES • To compare the efficacy and safety of different prophylactic pharmacologic interventions (antiemetic drugs) against no treatment, against placebo, or against each other (as monotherapy or combination prophylaxis) for prevention of postoperative nausea and vomiting in adults undergoing any type of surgery under general anaesthesia • To generate a clinically useful ranking of antiemetic drugs (monotherapy and combination prophylaxis) based on efficacy and safety • To identify the best dose or dose range of antiemetic drugs in terms of efficacy and safety SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), the World Health Organization International Clinical Trials Registry Platform (WHO ICTRP), ClinicalTrials.gov, and reference lists of relevant systematic reviews. The first search was performed in November 2017 and was updated in April 2020. In the update of the search, 39 eligible studies were found that were not included in the analysis (listed as awaiting classification). SELECTION CRITERIA Randomized controlled trials (RCTs) comparing effectiveness or side effects of single antiemetic drugs in any dose or combination against each other or against an inactive control in adults undergoing any type of surgery under general anaesthesia. All antiemetic drugs belonged to one of the following substance classes: 5-HT₃ receptor antagonists, D₂ receptor antagonists, NK₁ receptor antagonists, corticosteroids, antihistamines, and anticholinergics. No language restrictions were applied. Abstract publications were excluded. DATA COLLECTION AND ANALYSIS A review team of 11 authors independently assessed trials for inclusion and risk of bias and subsequently extracted data. We performed pair-wise meta-analyses for drugs of direct interest (amisulpride, aprepitant, casopitant, dexamethasone, dimenhydrinate, dolasetron, droperidol, fosaprepitant, granisetron, haloperidol, meclizine, methylprednisolone, metoclopramide, ondansetron, palonosetron, perphenazine, promethazine, ramosetron, rolapitant, scopolamine, and tropisetron) compared to placebo (inactive control). We performed network meta-analyses (NMAs) to estimate the relative effects and ranking (with placebo as reference) of all available single drugs and combinations. Primary outcomes were vomiting within 24 hours postoperatively, serious adverse events (SAEs), and any adverse event (AE). Secondary outcomes were drug class-specific side effects (e.g. headache), mortality, early and late vomiting, nausea, and complete response. We performed subgroup network meta-analysis with dose of drugs as a moderator variable using dose ranges based on previous consensus recommendations. We assessed certainty of evidence of NMA treatment effects for all primary outcomes and drug class-specific side effects according to GRADE (CINeMA, Confidence in Network Meta-Analysis). We restricted GRADE assessment to single drugs of direct interest compared to placebo. MAIN RESULTS We included 585 studies (97,516 randomized participants). Most of these studies were small (median sample size of 100); they were published between 1965 and 2017 and were primarily conducted in Asia (51%), Europe (25%), and North America (16%). Mean age of the overall population was 42 years. Most participants were women (83%), had American Society of Anesthesiologists (ASA) physical status I and II (70%), received perioperative opioids (88%), and underwent gynaecologic (32%) or gastrointestinal surgery (19%) under general anaesthesia using volatile anaesthetics (88%). In this review, 44 single drugs and 51 drug combinations were compared. Most studies investigated only single drugs (72%) and included an inactive control arm (66%). The three most investigated single drugs in this review were ondansetron (246 studies), dexamethasone (120 studies), and droperidol (97 studies). Almost all studies (89%) reported at least one efficacy outcome relevant for this review. However, only 56% reported at least one relevant safety outcome. Altogether, 157 studies (27%) were assessed as having overall low risk of bias, 101 studies (17%) overall high risk of bias, and 327 studies (56%) overall unclear risk of bias. Vomiting within 24 hours postoperatively Relative effects from NMA for vomiting within 24 hours (282 RCTs, 50,812 participants, 28 single drugs, and 36 drug combinations) suggest that 29 out of 36 drug combinations and 10 out of 28 single drugs showed a clinically important benefit (defined as the upper end of the 95% confidence interval (CI) below a risk ratio (RR) of 0.8) compared to placebo. Combinations of drugs were generally more effective than single drugs in preventing vomiting. However, single NK₁ receptor antagonists showed treatment effects similar to most of the drug combinations. High-certainty evidence suggests that the following single drugs reduce vomiting (ordered by decreasing efficacy): aprepitant (RR 0.26, 95% CI 0.18 to 0.38, high certainty, rank 3/28 of single drugs); ramosetron (RR 0.44, 95% CI 0.32 to 0.59, high certainty, rank 5/28); granisetron (RR 0.45, 95% CI 0.38 to 0.54, high certainty, rank 6/28); dexamethasone (RR 0.51, 95% CI 0.44 to 0.57, high certainty, rank 8/28); and ondansetron (RR 0.55, 95% CI 0.51 to 0.60, high certainty, rank 13/28). Moderate-certainty evidence suggests that the following single drugs probably reduce vomiting: fosaprepitant (RR 0.06, 95% CI 0.02 to 0.21, moderate certainty, rank 1/28) and droperidol (RR 0.61, 95% CI 0.54 to 0.69, moderate certainty, rank 20/28). Recommended and high doses of granisetron, dexamethasone, ondansetron, and droperidol showed clinically important benefit, but low doses showed no clinically important benefit. Aprepitant was used mainly at high doses, ramosetron at recommended doses, and fosaprepitant at doses of 150 mg (with no dose recommendation available). Frequency of SAEs Twenty-eight RCTs were included in the NMA for SAEs (10,766 participants, 13 single drugs, and eight drug combinations). The certainty of evidence for SAEs when using one of the best and most reliable anti-vomiting drugs (aprepitant, ramosetron, granisetron, dexamethasone, ondansetron, and droperidol compared to placebo) ranged from very low to low. Droperidol (RR 0.88, 95% CI 0.08 to 9.71, low certainty, rank 6/13) may reduce SAEs. We are uncertain about the effects of aprepitant (RR 1.39, 95% CI 0.26 to 7.36, very low certainty, rank 11/13), ramosetron (RR 0.89, 95% CI 0.05 to 15.74, very low certainty, rank 7/13), granisetron (RR 1.21, 95% CI 0.11 to 13.15, very low certainty, rank 10/13), dexamethasone (RR 1.16, 95% CI 0.28 to 4.85, very low certainty, rank 9/13), and ondansetron (RR 1.62, 95% CI 0.32 to 8.10, very low certainty, rank 12/13). No studies reporting SAEs were available for fosaprepitant. Frequency of any AE Sixty-one RCTs were included in the NMA for any AE (19,423 participants, 15 single drugs, and 11 drug combinations). The certainty of evidence for any AE when using one of the best and most reliable anti-vomiting drugs (aprepitant, ramosetron, granisetron, dexamethasone, ondansetron, and droperidol compared to placebo) ranged from very low to moderate. Granisetron (RR 0.92, 95% CI 0.80 to 1.05, moderate certainty, rank 7/15) probably has no or little effect on any AE. Dexamethasone (RR 0.77, 95% CI 0.55 to 1.08, low certainty, rank 2/15) and droperidol (RR 0.89, 95% CI 0.81 to 0.98, low certainty, rank 6/15) may reduce any AE. Ondansetron (RR 0.95, 95% CI 0.88 to 1.01, low certainty, rank 9/15) may have little or no effect on any AE. We are uncertain about the effects of aprepitant (RR 0.87, 95% CI 0.78 to 0.97, very low certainty, rank 3/15) and ramosetron (RR 1.00, 95% CI 0.65 to 1.54, very low certainty, rank 11/15) on any AE. No studies reporting any AE were available for fosaprepitant. Class-specific side effects For class-specific side effects (headache, constipation, wound infection, extrapyramidal symptoms, sedation, arrhythmia, and QT prolongation) of relevant substances, the certainty of evidence for the best and most reliable anti-vomiting drugs mostly ranged from very low to low. Exceptions were that ondansetron probably increases headache (RR 1.16, 95% CI 1.06 to 1.28, moderate certainty, rank 18/23) and probably reduces sedation (RR 0.87, 95% CI 0.79 to 0.96, moderate certainty, rank 5/24) compared to placebo. The latter effect is limited to recommended and high doses of ondansetron. Droperidol probably reduces headache (RR 0.76, 95% CI 0.67 to 0.86, moderate certainty, rank 5/23) compared to placebo. We have high-certainty evidence that dexamethasone (RR 1.00, 95% CI 0.91 to 1.09, high certainty, rank 16/24) has no effect on sedation compared to placebo. No studies assessed substance class-specific side effects for fosaprepitant. Direction and magnitude of network effect estimates together with level of evidence certainty are graphically summarized for all pre-defined GRADE-relevant outcomes and all drugs of direct interest compared to placebo in http://doi.org/10.5281/zenodo.4066353. AUTHORS' CONCLUSIONS We found high-certainty evidence that five single drugs (aprepitant, ramosetron, granisetron, dexamethasone, and ondansetron) reduce vomiting, and moderate-certainty evidence that two other single drugs (fosaprepitant and droperidol) probably reduce vomiting, compared to placebo. Four of the six substance classes (5-HT₃ receptor antagonists, D₂ receptor antagonists, NK₁ receptor antagonists, and corticosteroids) were thus represented by at least one drug with important benefit for prevention of vomiting. Combinations of drugs were generally more effective than the corresponding single drugs in preventing vomiting. NK₁ receptor antagonists were the most effective drug class and had comparable efficacy to most of the drug combinations. 5-HT₃ receptor antagonists were the best studied substance class. For most of the single drugs of direct interest, we found only very low to low certainty evidence for safety outcomes such as occurrence of SAEs, any AE, and substance class-specific side effects. Recommended and high doses of granisetron, dexamethasone, ondansetron, and droperidol were more effective than low doses for prevention of vomiting. Dose dependency of side effects was rarely found due to the limited number of studies, except for the less sedating effect of recommended and high doses of ondansetron. The results of the review are transferable mainly to patients at higher risk of nausea and vomiting (i.e. healthy women undergoing inhalational anaesthesia and receiving perioperative opioids). Overall study quality was limited, but certainty assessments of effect estimates consider this limitation. No further efficacy studies are needed as there is evidence of moderate to high certainty for seven single drugs with relevant benefit for prevention of vomiting. However, additional studies are needed to investigate potential side effects of these drugs and to examine higher-risk patient populations (e.g. individuals with diabetes and heart disease).
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Affiliation(s)
- Stephanie Weibel
- Department of Anesthesiology and Critical Care, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Gerta Rücker
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Leopold Hj Eberhart
- Department of Anaesthesiology & Intensive Care Medicine, Philipps-University Marburg, Marburg, Germany
| | - Nathan L Pace
- Department of Anesthesiology, University of Utah, Salt Lake City, UT, USA
| | - Hannah M Hartl
- Department of Anesthesiology and Critical Care, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Olivia L Jordan
- Department of Anesthesiology and Critical Care, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Debora Mayer
- Department of Anesthesiology and Critical Care, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Manuel Riemer
- Department of Anesthesiology and Critical Care, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Maximilian S Schaefer
- Department of Anaesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
- Department of Anesthesia, Critical Care & Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Diana Raj
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Queen Elizabeth University Hospital, Glasgow, UK
| | - Insa Backhaus
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Antonia Helf
- Department of Anesthesiology and Critical Care, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Tobias Schlesinger
- Department of Anesthesiology and Critical Care, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Peter Kienbaum
- Department of Anaesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Peter Kranke
- Department of Anesthesiology and Critical Care, University Hospital Wuerzburg, Wuerzburg, Germany
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Perioperative Hyperoxyphobia: Justified or Not? Benefits and Harms of Hyperoxia during Surgery. J Clin Med 2020; 9:jcm9030642. [PMID: 32121051 PMCID: PMC7141263 DOI: 10.3390/jcm9030642] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 02/18/2020] [Accepted: 02/26/2020] [Indexed: 12/12/2022] Open
Abstract
The use of an inspiratory oxygen fraction of 0.80 during surgery is a topic of ongoing debate. Opponents claim that increased oxidative stress, atelectasis, and impaired oxygen delivery due to hyperoxic vasoconstriction are detrimental. Proponents point to the beneficial effects on the incidence of surgical site infections and postoperative nausea and vomiting. Also, hyperoxygenation is thought to extend the safety margin in case of acute intraoperative emergencies. This review provides a comprehensive risk-benefit analysis for the use of perioperative hyperoxia in noncritically ill adults based on clinical evidence and supported by physiological deduction where needed. Data from the field of hyperbaric medicine, as a model of extreme hyperoxygenation, are extrapolated to the perioperative setting. We ultimately conclude that current evidence is in favour of hyperoxia in noncritically ill intubated adult surgical patients.
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Ferrando C, Aldecoa C, Unzueta C, Belda FJ, Librero J, Tusman G, Suárez-Sipmann F, Peiró S, Pozo N, Brunelli A, Garutti I, Gallego C, Rodríguez A, García JI, Díaz-Cambronero O, Balust J, Redondo FJ, de la Matta M, Gallego-Ligorit L, Hernández J, Martínez P, Pérez A, Leal S, Alday E, Monedero P, González R, Mazzirani G, Aguilar G, López-Baamonde M, Felipe M, Mugarra A, Torrente J, Valencia L, Varón V, Sánchez S, Rodríguez B, Martín A, India I, Azparren G, Molina R, Villar J, Soro M. Effects of oxygen on post-surgical infections during an individualised perioperative open-lung ventilatory strategy: a randomised controlled trial. Br J Anaesth 2019; 124:110-120. [PMID: 31767144 DOI: 10.1016/j.bja.2019.10.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/07/2019] [Accepted: 10/19/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND We aimed to examine whether using a high fraction of inspired oxygen (FIO2) in the context of an individualised intra- and postoperative open-lung ventilation approach could decrease surgical site infection (SSI) in patients scheduled for abdominal surgery. METHODS We performed a multicentre, randomised controlled clinical trial in a network of 21 university hospitals from June 6, 2017 to July 19, 2018. Patients undergoing abdominal surgery were randomly assigned to receive a high (0.80) or conventional (0.3) FIO2 during the intraoperative period and during the first 3 postoperative hours. All patients were mechanically ventilated with an open-lung strategy, which included recruitment manoeuvres and individualised positive end-expiratory pressure for the best respiratory-system compliance, and individualised continuous postoperative airway pressure for adequate peripheral oxyhaemoglobin saturation. The primary outcome was the prevalence of SSI within the first 7 postoperative days. The secondary outcomes were composites of systemic complications, length of intensive care and hospital stay, and 6-month mortality. RESULTS We enrolled 740 subjects: 371 in the high FIO2 group and 369 in the low FIO2 group. Data from 717 subjects were available for final analysis. The rate of SSI during the first postoperative week did not differ between high (8.9%) and low (9.4%) FIO2 groups (relative risk [RR]: 0.94; 95% confidence interval [CI]: 0.59-1.50; P=0.90]). Secondary outcomes, such as atelectasis (7.7% vs 9.8%; RR: 0.77; 95% CI: 0.48-1.25; P=0.38) and myocardial ischaemia (0.6% [n=2] vs 0% [n=0]; P=0.47) did not differ between groups. CONCLUSIONS An oxygenation strategy using high FIO2 compared with conventional FIO2 did not reduce postoperative SSIs in abdominal surgery. No differences in secondary outcomes or adverse events were found. CLINICAL TRIAL REGISTRATION NCT02776046.
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Affiliation(s)
- Carlos Ferrando
- Department of Anesthesiology and Critical Care, Hospital Clínic i Provincial, Barcelona, Spain; CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain.
| | - César Aldecoa
- Department of Anesthesiology and Critical Care, Hospital Universitario Río Hortega, Valladolid, Spain
| | - Carmen Unzueta
- Department of Anesthesiology and Critical Care, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain
| | - F Javier Belda
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario, Valencia, Spain
| | - Julián Librero
- Navarrabiomed, Complejo Hospitalario de Navarra, UPNA, REDISSEC (Red de Investigación en Servicios de Salud en Enfermedades Crónicas, Valencia, Spain
| | - Gerardo Tusman
- Department of Anesthesiology, Hospital Privado de Comunidad, Mar del Plata, Argentina
| | - Fernando Suárez-Sipmann
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain; Department of Surgical Sciences, Hedenstierna Laboratory, Uppsala University Hospital, Uppsala, Sweden; Department of Intensive Care, Hospital Universitario La Princesa, Madrid, Spain
| | - Salvador Peiró
- Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (FISABIO), Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC), Valencia, Spain
| | - Natividad Pozo
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario, Valencia, Spain
| | - Andrea Brunelli
- Department of Anesthesiology and Critical Care, Hospital Germans Tries i Pujol, Badalona, Spain
| | - Ignacio Garutti
- Department of Anesthesiology and Critical Care, Hospital Universitario General Gregorio Marañón, Madrid, Spain
| | - Clara Gallego
- Department of Anesthesiology and Critical Care, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Aurelio Rodríguez
- Department of Anesthesiology and Critical Care, Hospital Universitario Dr Negrín, Las Palmas de Gran Canaria, Spain
| | - Jose Ignacio García
- Department of Anesthesiology and Critical Care, Hospital Fundación of Alcorcón, Alcorcón, Spain
| | - Oscar Díaz-Cambronero
- Department of Anesthesiology and Critical Care, Hospital Universitario La Fe, Valencia, Spain
| | - Jaume Balust
- Department of Anesthesiology and Critical Care, Hospital Clínic i Provincial, Barcelona, Spain
| | - Francisco J Redondo
- Department of Anesthesiology and Critical Care, Hospital General de Ciudad Real, Ciudad Real, Spain
| | - Manuel de la Matta
- Department of Anesthesiology and Critical Care, Hospital Universitario Virgen del Rocio, Sevilla, Spain
| | - Lucía Gallego-Ligorit
- Department of Anesthesiology and Critical Care, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | - Javier Hernández
- Department of Anesthesiology and Critical Care, Hospital General, Valencia, Spain
| | - Pascual Martínez
- Department of Anesthesiology and Critical Care, Hospital de Albacete, Albacete, Spain
| | - Ana Pérez
- Department of Anesthesiology and Critical Care, Hospital of Elche, Elche, Spain
| | - Sonsoles Leal
- Department of Anesthesiology and Critical Care, Hospital Povisa, Vigo, Spain
| | - Enrique Alday
- Department of Anesthesiology and Critical Care, Hospital Universitario La Princesa, Madrid, Spain
| | - Pablo Monedero
- Department of Anesthesiology and Critical Care, Clínica Universitaria de Navarra, Pamplona, Spain
| | - Rafael González
- Department of Anesthesiology and Critical Care, Hospital Universitario de León, León, Spain
| | - Guido Mazzirani
- Department of Anesthesiology, Hospital de Manises, Manises, Spain
| | - Gerardo Aguilar
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario, Valencia, Spain
| | - Manuel López-Baamonde
- Department of Anesthesiology and Critical Care, Hospital Clínic i Provincial, Barcelona, Spain
| | - Mar Felipe
- Department of Anesthesiology and Critical Care, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain
| | - Ana Mugarra
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario, Valencia, Spain
| | - Jara Torrente
- Department of Intensive Care, Hospital Universitario La Princesa, Madrid, Spain
| | - Lucia Valencia
- Department of Anesthesiology and Critical Care, Hospital Universitario Dr Negrín, Las Palmas de Gran Canaria, Spain
| | - Viviana Varón
- Department of Anesthesiology and Critical Care, Hospital Fundación of Alcorcón, Alcorcón, Spain
| | - Sergio Sánchez
- Department of Anesthesiology and Critical Care, Hospital General de Ciudad Real, Ciudad Real, Spain
| | - Benigno Rodríguez
- Department of Anesthesiology and Critical Care, Hospital Povisa, Vigo, Spain
| | - Ana Martín
- Department of Anesthesiology and Critical Care, Hospital Universitario de León, León, Spain
| | - Inmaculada India
- Department of Anesthesiology and Critical Care, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain
| | - Gonzalo Azparren
- Department of Anesthesiology and Critical Care, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain
| | - Rodrigo Molina
- Department of Anesthesiology and Critical Care, Hospital Fundación of Alcorcón, Alcorcón, Spain
| | - Jesús Villar
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain; Multidisciplinary Organ Dysfunction Evaluation Research Network, Research Unit, Hospital Universitario Dr Negrín, Las Palmas de Gran Canaria, Spain; Keenan Research Center for Biomedical Science at the Li Ka Shing Knowledge Institute, St Michael''s Hospital, Toronto, ON, Canada
| | - Marina Soro
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario, Valencia, Spain
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- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain; Navarrabiomed-Fundación Miguel Servet, Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC), Pamplona, Spain; Department of Anesthesiology, Hospital Privado de Comunidad, Mar de Plata, Argentina; Department of Surgical Sciences, Hedenstierna Laboratory, Uppsala University Hospital Uppsala, Sweden; Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (FISABIO), Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC), Valencia, Spain; Department of Anesthesiology and Critical Care, Hospital de Albacete, Spain; Department of Anesthesiology and Critical Care, Hospital Universitario La Princesa, Madrid, Spain; Department of Anesthesiology, Hospital de Manises, Spain; Multidisciplinary Organ Dysfunction Evaluation Research Network, Research Unit, Hospital Universitario Dr. Negrín, Las Palmas de Gran Canaria, Spain; Keenan Research Center for Biomedical Science at the Li Ka Shing Knowledge Institute, St. Michael''s Hospital, Toronto, ON, Canada
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Modification of the World Health Organization Global Guidelines for Prevention of Surgical Site Infection Is Needed. Anesthesiology 2019; 131:765-768. [DOI: 10.1097/aln.0000000000002848] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Corcoran TB, Myles PS, Forbes AB, O'Loughlin E, Leslie K, Story D, Short TG, Chan MT, Coutts P, Sidhu J, Cheng AC, Bach LA, Ho KM. The perioperative administration of dexamethasone and infection (PADDI) trial protocol: rationale and design of a pragmatic multicentre non-inferiority study. BMJ Open 2019; 9:e030402. [PMID: 31494615 PMCID: PMC6731833 DOI: 10.1136/bmjopen-2019-030402] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION The intraoperative administration of dexamethasone for prophylaxis against postoperative nausea and vomiting is a common and recommended practice. The safety of the administration of this immunosuppressive agent at a time of significant immunological disruption has not been rigorously evaluated in terms of infective complications. METHODS/ANALYSIS This is a pragmatic, multicentre, randomised, controlled, non-inferiority trial. A total of 8880 patients undergoing elective major surgery will be enrolled. Participants will be randomly allocated to receive either dexamethasone 8 mg or placebo intravenously following the induction of anaesthesia in a 1:1 ratio, stratified by centre and diabetes status. Patient enrolment into the trial is ongoing. The primary outcome is surgical site infection at 30 days following surgery, defined according to the Centre for Disease Control criteria. ETHICS/DISSEMINATION The PADDI trial has been approved by the ethics committees of over 45 participating sites in Australia, New Zealand, Hong Kong, South Africa and the Netherlands. The trial has been endorsed by the Australia and New Zealand College of Anaesthetists Clinical Trials Network and the Australian Society for Infectious Diseases Clinical Research Network. Participant recruitment began in March 2016 and is expected to be complete in mid-2019. Publication of the results of the PADDI trial is anticipated to occur in early 2020. TRIAL REGISTRATION NUMBER ACTRN12614001226695.
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Affiliation(s)
- Tomás B Corcoran
- Royal Perth Hospital, Perth, Western Australia, Australia
- University of Western Australia, Perth, Western Australia, Australia
- Monash University, Melbourne, Victoria, Australia
| | - Paul S Myles
- Monash University, Melbourne, Victoria, Australia
- Alfred Hospital, Melbourne, Victoria, Australia
| | | | - Ed O'Loughlin
- University of Western Australia, Perth, Western Australia, Australia
- Fiona Stanley Hospital, Perth, Western Australia, Australia
| | - Kate Leslie
- Monash University, Melbourne, Victoria, Australia
- Royal Melbourne Hospital, Melbourne, Victoria, Australia
- The University of Melbourne, Melbourne, Victoria, Australia
| | - David Story
- Royal Melbourne Hospital, Melbourne, Victoria, Australia
- The University of Melbourne, Melbourne, Victoria, Australia
| | | | | | - Pauline Coutts
- Royal Perth Hospital, Perth, Western Australia, Australia
| | | | - Allen C Cheng
- Monash University, Melbourne, Victoria, Australia
- Alfred Hospital, Melbourne, Victoria, Australia
| | - Leon A Bach
- Monash University, Melbourne, Victoria, Australia
- Alfred Hospital, Melbourne, Victoria, Australia
| | - Kwok M Ho
- Royal Perth Hospital, Perth, Western Australia, Australia
- University of Western Australia, Perth, Western Australia, Australia
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35
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Rasmussen BS, Frei D, Schjørring OL, Meyhoff CS, Young PJ. Perioperative Oxygenation Targets in Adults. CURRENT ANESTHESIOLOGY REPORTS 2019. [DOI: 10.1007/s40140-019-00326-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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36
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de Jonge SW, Hollmann MW. Perioperative Use of High Fraction of Inspired Oxygen: Another Null Result? Anesth Analg 2019; 128:1071-1073. [PMID: 31094770 DOI: 10.1213/ane.0000000000004163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Stijn W de Jonge
- From the Departments of Anesthesiology.,Surgery, Amsterdam University Medical Centers, Location Academic Medical Centre, the Netherlands
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37
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Yoon HK, Kwon Y, Kim WH. Effectiveness of high F IO 2 in patients undergoing surgery: trial sequential analysis. Comment on Br J Anaesth 2019; 122: 325. Br J Anaesth 2019; 123:e7-e9. [PMID: 31047646 DOI: 10.1016/j.bja.2019.03.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/21/2019] [Accepted: 03/29/2019] [Indexed: 02/05/2023] Open
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Intra-operative high inspired oxygen fraction does not increase the risk of postoperative respiratory complications. Eur J Anaesthesiol 2019; 36:320-326. [DOI: 10.1097/eja.0000000000000980] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dobler D, Pauly M. Factorial analyses of treatment effects under independent right-censoring. Stat Methods Med Res 2019; 29:325-343. [PMID: 30834811 DOI: 10.1177/0962280219831316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper introduces new effect parameters for factorial survival designs with possibly right-censored time-to-event data. In the special case of a two-sample design, it coincides with the concordance or Wilcoxon parameter in survival analysis. More generally, the new parameters describe treatment or interaction effects and we develop estimates and tests to infer their presence. We rigorously study their asymptotic properties and additionally suggest wild bootstrapping for a consistent and distribution-free application of the inference procedures. The small sample performance is discussed based on simulation results. The practical usefulness of the developed methodology is exemplified on a data example about patients with colon cancer by conducting one- and two-factorial analyses.
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Affiliation(s)
- Dennis Dobler
- Department of Mathematics, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Markus Pauly
- Institute of Statistics, Ulm University, Ulm, Germany
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40
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Polderman JAW, Farhang‐Razi V, Dieren S, Kranke P, DeVries JH, Hollmann MW, Preckel B, Hermanides J. Adverse side‐effects of dexamethasone in surgical patients – an abridged Cochrane systematic review. Anaesthesia 2019; 74:929-939. [DOI: 10.1111/anae.14610] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2019] [Indexed: 01/18/2023]
Affiliation(s)
- J. A. W. Polderman
- Department of Anaesthesiology Amsterdam University Medical Centre Amsterdamthe Netherlands
| | - V. Farhang‐Razi
- Department of Anaesthesiology Amsterdam University Medical Centre Amsterdamthe Netherlands
| | - S. Dieren
- Department of Surgery Amsterdam University Medical Centre Amsterdamthe Netherlands
| | - P. Kranke
- Department of Anaesthesia and Critical Care University Hospitals of Wuerzburg Germany
| | - J. H. DeVries
- Department of Endocrinology Amsterdam University Medical Centre Amsterdamthe Netherlands
| | - M. W. Hollmann
- Department of Anaesthesiology and Laboratory of Experimental Intensive Care and Anaesthesiology (L.E.I.C.A.) Amsterdam University Medical Centre Amsterdam the Netherlands
| | - B. Preckel
- Department of Anaesthesiology and Laboratory of Experimental Intensive Care and Anaesthesiology (L.E.I.C.A.) Amsterdam University Medical Centre Amsterdam the Netherlands
| | - J. Hermanides
- Department of Anaesthesiology Amsterdam University Medical Centre Amsterdamthe Netherlands
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41
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Alvandipour M, Mokhtari-Esbuie F, Baradari AG, Firouzian A, Rezaie M. Effect of Hyperoxygenation During Surgery on Surgical Site Infection in Colorectal Surgery. Ann Coloproctol 2019; 35:9-14. [PMID: 30879279 PMCID: PMC6425249 DOI: 10.3393/ac.2018.01.16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 01/16/2018] [Indexed: 12/24/2022] Open
Abstract
Purpose Despite the use of different surgical methods, surgical site infection is still an important cause of mortality and morbidity in patients and imposes a considerable cost on the healthcare system. Administration of supplemental oxygen during surgery has been reported to reduce surgical site infection (SSI); however, that result is still controversial. This study was performed to evaluate the effect of hyperoxygenation during colorectal surgery on the incidence of wound infection. Methods This study was a prospective double-blind case-control study. The main aim of the study was to evaluate the effect of hyperoxygenation during colorectal surgery on the incidence of SSI. Also, secondary outcomes, such as atelectasis, pneumonia, respiratory failure, length of hospital stay, and required hospitalization in the intensive care unit were evaluated. Results SSI was recorded in 2 patients (2 of 40, 5%) in the hyperoxygenation group (FiO2 80%) and 6 patients (6 of 40, 15%) in the control group (FiO2 30%) (P < 0.05). Time of hospitalization was 6 ± 6.4 days in the hyperoxygenation group and 9.2 ± 2.4 days in the control group (P < 0.05). Conclusion This study showed a positive effect of hyperoxygenation in reducing SSI in colorectal surgery, especially surgery in an emergency setting. When the low risk, low cost, and effectiveness of this method in patients undergoing a laparotomy are considered, it is recommended for all patients undergoing colorectal surgery.
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Affiliation(s)
- Mina Alvandipour
- Department of Colorectal Surgery, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Farzad Mokhtari-Esbuie
- Department of General Surgery, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Afshin Gholipour Baradari
- Department of Anesthesiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abolfazl Firouzian
- Department of Anesthesiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mehdi Rezaie
- Department of General Surgery, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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Simpson JC, Bao X, Agarwala A. Pain Management in Enhanced Recovery after Surgery (ERAS) Protocols. Clin Colon Rectal Surg 2019; 32:121-128. [PMID: 30833861 DOI: 10.1055/s-0038-1676477] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Pain control is an integral part of Enhanced Recovery after Surgery (ERAS) protocols for colorectal surgery. While opioid therapy remains the mainstay of therapy for postsurgical pain, opioids have undesired side effects including delayed recovery of bowel function, respiratory depression, and postoperative nausea and vomiting. A variety of nonopioid systemic medical therapies as well as regional and neuraxial techniques have been described as improving pain control while reducing opioid use. Multimodal and preemptive analgesia as part of an ERAS protocol facilitates early mobility and early return of bowel function and decreases postoperative morbidity. In this review, we examine several multimodal therapies and their impact on postoperative analgesia, opioid use, and recovery for patients undergoing colorectal surgery.
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Affiliation(s)
- J Creswell Simpson
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Xiaodong Bao
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Aalok Agarwala
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts
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Myles PS, Carlisle JB, Scarr B. Evidence for compromised data integrity in studies of liberal peri‐operative inspired oxygen. Anaesthesia 2019; 74:573-584. [DOI: 10.1111/anae.14584] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/24/2018] [Indexed: 01/23/2023]
Affiliation(s)
- P. S. Myles
- Department of Anaesthesiology and Peri‐operative Medicine Alfred Hospital and Monash University MelbourneVic.Australia
| | - J. B. Carlisle
- Department of Anaesthesia and Peri‐operative Medicine Torbay Hospital South Devon NHS Foundation Trust TorquayUK
| | - B. Scarr
- Department of Anaesthesia and Pain Medicine Royal Melbourne Hospital Parkville Vic. Australia
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Meyhoff CS. Perioperative hyperoxia: why guidelines, research and clinical practice collide. Br J Anaesth 2019; 122:289-291. [PMID: 30770042 DOI: 10.1016/j.bja.2018.12.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 12/19/2018] [Accepted: 12/21/2018] [Indexed: 11/29/2022] Open
Affiliation(s)
- Christian S Meyhoff
- Department of Anaesthesia and Intensive Care, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark.
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45
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de Jonge S, Egger M, Latif A, Loke YK, Berenholtz S, Boermeester M, Allegranzi B, Solomkin J. Effectiveness of 80% vs 30-35% fraction of inspired oxygen in patients undergoing surgery: an updated systematic review and meta-analysis. Br J Anaesth 2019; 122:325-334. [PMID: 30770050 DOI: 10.1016/j.bja.2018.11.024] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 10/26/2018] [Accepted: 11/05/2018] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND In 2016, the World Health Organization (WHO) strongly recommended the use of a high fraction of inspired oxygen (FiO2) in adult patients undergoing general anaesthesia to reduce the risk of surgical site infection (SSI). Since then, further trials have been published, trials included previously have come under scrutiny, and one article was retracted. We updated the systematic review on which the recommendation was based. METHODS We performed a systematic literature search from January 1990 to April 2018 for RCTs comparing the effect of high (80%) vs standard (30-35%) FiO2 on the incidence of SSI. Studies retracted or under investigation were excluded. A random effects model was used for meta-analyses; the sources of heterogeneity were explored using meta-regression. RESULTS Of 21 RCTs included, six were newly identified since the publication of the WHO guideline review; 17 could be included in the final analyses. Overall, no evidence for a reduction of SSI after the use of high FiO2 was found [relative risk (RR): 0.89; 95% confidence interval (CI): 0.73-1.07]. There was evidence that high FiO2 was beneficial in intubated patients [RR: 0.80 (95% CI: 0.64-0.99)], but not in non-intubated patients [RR: 1.20 (95% CI: 0.91-1.58); test of interaction; P=0.048]. CONCLUSIONS The WHO updated analyses did not show definite beneficial effect of the use of high perioperative FiO2, overall, but there was evidence of effect of reducing the SSI risk in surgical patients under general anaesthesia with tracheal intubation. However, the evidence for this beneficial effect has become weaker and the strength of the recommendation needs to be reconsidered.
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Affiliation(s)
- Stijn de Jonge
- Department of Surgery, Amsterdam Gastroenterology and Metabolism, Amsterdam Infection and Immunity, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Matthias Egger
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Asad Latif
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Armstrong Institute for Patient Safety and Quality, Johns Hopkins Medicine, Baltimore, MD, USA
| | - Yoon Kong Loke
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Sean Berenholtz
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Armstrong Institute for Patient Safety and Quality, Johns Hopkins Medicine, Baltimore, MD, USA
| | - Marja Boermeester
- Department of Surgery, Amsterdam Gastroenterology and Metabolism, Amsterdam Infection and Immunity, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Benedetta Allegranzi
- Infection Prevention and Control Global Unit, Service Delivery and Safety, World Health Organization, Geneva, Switzerland.
| | - Joseph Solomkin
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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Mattishent K, Thavarajah M, Sinha A, Peel A, Egger M, Solomkin J, de Jonge S, Latif A, Berenholtz S, Allegranzi B, Loke YK. Safety of 80% vs 30-35% fraction of inspired oxygen in patients undergoing surgery: a systematic review and meta-analysis. Br J Anaesth 2019; 122:311-324. [PMID: 30770049 DOI: 10.1016/j.bja.2018.11.026] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/06/2018] [Accepted: 11/08/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Evidence-based guidelines from the World Health Organization (WHO) have recommended a high (80%) fraction of inspired oxygen (FiO2) to reduce surgical site infection in adult surgical patients undergoing general anaesthesia with tracheal intubation. However, there is ongoing debate over the safety of high FiO2. We performed a systematic review to define the relative risk of clinically relevant adverse events (AE) associated with high FiO2. METHODS We reviewed potentially relevant articles from the WHO review supporting the recommendation, including an updated (July 2018) search of EMBASE and PubMed for randomised and non-randomised controlled studies reporting AE in surgical patients receiving 80% FiO2 compared with 30-35% FiO2. We assessed study quality and performed meta-analyses of risk ratios (RR) comparing 80% FiO2 against 30-35% for major complications, mortality, and intensive care admission. RESULTS We included 17 moderate-good quality trials and two non-randomised studies with serious-critical risk of bias. No evidence of harm with high FiO2 was found for major AE in the meta-analysis of randomised trials: atelectasis RR 0.91 [95% confidence interval (CI) 0.59-1.42); cardiovascular events RR 0.90 (95% CI 0.32-2.54); intensive care admission RR 0.93 (95% CI 0.7-1.12); and death during the trial RR 0.49 (95% CI 0.17-1.37). One non-randomised study reported that high FiO2 was associated with major respiratory AE [RR 1.99 (95% CI 1.72-2.31)]. CONCLUSIONS No definite signal of harm with 80% FiO2 in adult surgical patients undergoing general anaesthesia was demonstrated and there is little evidence on safety-related issues to discourage its use in this population.
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Affiliation(s)
| | | | - Ashnish Sinha
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Adam Peel
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Matthias Egger
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Joseph Solomkin
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Stijn de Jonge
- Department of Surgery, Amsterdam Gastroenterology and Metabolism, Amsterdam Infection and Immunity, Amsterdam UMC, Location AMC, University of Amsterdam, the Netherlands
| | - Asad Latif
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Armstrong Institute for Patient Safety and Quality, Johns Hopkins Medicine, Baltimore, MD, USA
| | - Sean Berenholtz
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Armstrong Institute for Patient Safety and Quality, Johns Hopkins Medicine, Baltimore, MD, USA
| | - Benedetta Allegranzi
- Infection Prevention and Control Global Unit, Service Delivery and Safety, World Health Organization, Geneva, Switzerland.
| | - Yoon Kong Loke
- Norwich Medical School, University of East Anglia, Norwich, UK
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47
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Myles PS, Kurz A. Supplemental oxygen and surgical site infection: getting to the truth. Br J Anaesth 2018; 119:13-15. [PMID: 28974063 DOI: 10.1093/bja/aex096] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
- P S Myles
- Department of Anaesthesia and Perioperative Medicine, Alfred Hospital and Monash University, Melbourne, Victoria, Australia
| | - A Kurz
- Department of Anesthesiology, Cleveland Clinic, Cleveland, OH, USA
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Polderman JAW, Farhang‐Razi V, Van Dieren S, Kranke P, DeVries JH, Hollmann MW, Preckel B, Hermanides J. Adverse side effects of dexamethasone in surgical patients. Cochrane Database Syst Rev 2018; 11:CD011940. [PMID: 30480776 PMCID: PMC6426282 DOI: 10.1002/14651858.cd011940.pub3] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND In the perioperative period, dexamethasone is widely and effectively used for prophylaxis of postoperative nausea and vomiting (PONV), for pain management, and to facilitate early discharge after ambulatory surgery.Long-term treatment with steroids has many side effects, such as adrenal insufficiency, increased infection risk, hyperglycaemia, high blood pressure, osteoporosis, and development of diabetes mellitus. However, whether a single steroid load during surgery has negative effects during the postoperative period has not yet been studied. OBJECTIVES To assess the effects of a steroid load of dexamethasone on postoperative systemic or wound infection, delayed wound healing, and blood glucose change in adult surgical patients (with planned subgroup analysis of patients with and without diabetes). SEARCH METHODS We searched MEDLINE, Embase, the Cochrane Central Register of Controlled Trials (CENTRAL), in the Cochrane Library, and the Web of Science for relevant articles on 29 January 2018. We searched without language or date restriction two clinical trial registries to identify ongoing studies, and we handsearched the reference lists of relevant publications to identify all eligible trials. SELECTION CRITERIA We searched for randomized controlled trials comparing an incidental steroid load of dexamethasone versus a control intervention for adult patients undergoing surgery. We required that studies include a follow-up of 30 days for proper assessment of the number of postoperative infections, delayed wound healing, and the glycaemic response. DATA COLLECTION AND ANALYSIS Two review authors independently screened studies for eligibility, extracted data from relevant studies, and assessed all included studies for bias. We resolved differences by discussion and pooled included studies in a meta-analysis. We calculated Peto odds ratios (ORs) for dichotomous outcomes and mean differences (MDs) for continuous outcomes. Our primary outcomes were postoperative systemic or wound infection, delayed wound healing, and glycaemic response within 24 hours. We created a funnel plot for the primary outcome postoperative (wound or systemic) infection. We used GRADE to assess the quality of evidence for each outcome. MAIN RESULTS We included in the meta-analysis 37 studies that included adults undergoing a large variety of surgical procedures (i.e. abdominal surgery, cardiac surgery, neurosurgery, and orthopaedic surgery). We excluded one previously included study, as this study was recently retracted. Age range of participants was 18 to 80 years. There is probably little or no difference in the risk of postoperative (wound or systemic) infection with dexamethasone compared with no treatment, placebo, or active control (ramosetron, ondansetron, or tropisetron) (Peto OR 1.01, 95% confidence interval (CI) 0.80 to 1.27; 4603 participants, 26 studies; I² = 32%; moderate-quality evidence). The effects of dexamethasone on delayed wound healing are unclear because the wide confidence interval includes both meaningful benefit and harm (Peto OR 0.99, 95% CI 0.28 to 3.43; 1072 participants, eight studies; I² = 0%; low-quality evidence). Dexamethasone may produce a mild increase in glucose levels among participants without diabetes during the first 12 hours after surgery (MD 13 mg/dL, 95% CI 6 to 21; 10 studies; 595 participants; I² = 50%; low-quality evidence). We identified two studies reporting on glycaemic response after dexamethasone in participants with diabetes within 24 hours after surgery (MD 32 mg/dL, 95% CI 15 to 49; 74 participants; I² = 0%; very low-quality evidence). AUTHORS' CONCLUSIONS A single dose of dexamethasone probably does not increase the risk for postoperative infection. It is uncertain whether dexamethasone has an effect on delayed wound healing in the general surgical population owing to imprecision in trial results. Participants with increased risk for delayed wound healing (e.g. participants with diabetes, those taking immunosuppressive drugs) were not included in the randomized studies reporting on delayed wound healing included in this meta-analysis; therefore our findings should be extrapolated to the clinical setting with caution. Furthermore, one has to keep in mind that dexamethasone induces a mild increase in glucose. For patients with diabetes, very limited evidence suggests a more pronounced increase in glucose. Whether this influences wound healing in a clinically relevant way remains to be established. Once assessed, the two studies awaiting classification and three that are ongoing may alter the conclusions of this review.
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Affiliation(s)
- Jorinde AW Polderman
- Academic Medical Center (AMC) University of AmsterdamDepartment of AnaesthesiologyMeibergdreef 9AmsterdamNetherlands1105 AZ
| | - Violet Farhang‐Razi
- Academic Medical Center (AMC) University of AmsterdamDepartment of AnaesthesiologyMeibergdreef 9AmsterdamNetherlands1105 AZ
| | - Susan Van Dieren
- Academic Medical Center (AMC) University of AmsterdamDepartment of AnaesthesiologyMeibergdreef 9AmsterdamNetherlands1105 AZ
| | - Peter Kranke
- University of WürzburgDepartment of Anaesthesia and Critical CareOberdürrbacher Str. 6WürzburgGermany97080
| | - J Hans DeVries
- Academic Medical CentreDepartment of Internal MedicinePO Box 22700AmsterdamNetherlands1100 DE
| | - Markus W Hollmann
- Academic Medical Center (AMC) University of AmsterdamDepartment of AnaesthesiologyMeibergdreef 9AmsterdamNetherlands1105 AZ
| | - Benedikt Preckel
- Academic Medical Center (AMC) University of AmsterdamDepartment of AnaesthesiologyMeibergdreef 9AmsterdamNetherlands1105 AZ
| | - Jeroen Hermanides
- Academic Medical Center (AMC) University of AmsterdamDepartment of AnaesthesiologyMeibergdreef 9AmsterdamNetherlands1105 AZ
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Park J, Min JJ, Kim SJ, Ahn JH, Kim K, Lee JH, Park K, Chung IS. Effects of lowering inspiratory oxygen fraction during microvascular decompression on postoperative gas exchange: A pre-post study. PLoS One 2018; 13:e0206371. [PMID: 30427854 PMCID: PMC6235305 DOI: 10.1371/journal.pone.0206371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 10/11/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Despite many previous studies, the optimal oxygen fraction during general anesthesia remains controversial. This study aimed to evaluate the effects of lowering intraoperative fraction of inspired oxygen on postoperative gas exchange in patients undergoing microvascular decompression (MVD). METHODS We conducted a pre-post study to compare postoperative gas exchange with different intraoperative oxygen fractions. From April 2010 to June 2017, 1456 consecutive patients who underwent MVD were enrolled. Starting in January 2014, routine oxygen fraction was lowered from 1.0 to 0.3 during anesthetic induction/awakening and from 0.5 to 0.3 during anesthetic maintenance. Postoperative gas exchange, presented as the minimum value of PaO2/FIO2 ratio within 48 hours, were compared along with adverse events. RESULTS Among 1456 patients, 623 (42.8%) patients were stratified into group H (high FIO2) and 833 (57.2%) patients into group L (low FIO2). Intraoperative positive end-expiratory pressure was used in 126 (15.1%) patients in group H and 90 (14.4%) patients in group L (p = 0.77).The minimum value of PaO2/ FIO2 ratio within 48 hours after surgery was significantly greater in the group L (226.13 vs. 323.12; p < 0.001) without increasing any adverse events. CONCLUSION In patients undergoing MVD, lowering routine FIO2 and avoiding 100% O2 improved postoperative gas exchange.
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Affiliation(s)
- Jungchan Park
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeong Jin Min
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - So Jin Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jin Hee Ahn
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Keoungah Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong-Hwan Lee
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- * E-mail:
| | - Kwan Park
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ik Soo Chung
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Corcoran T, Kasza J, Short TG, O'Loughlin E, Chan MTV, Leslie K, Forbes A, Paech M, Myles P. Intraoperative dexamethasone does not increase the risk of postoperative wound infection: a propensity score-matched post hoc analysis of the ENIGMA-II trial (EnDEX). Br J Anaesth 2018; 118:190-199. [PMID: 28100522 DOI: 10.1093/bja/aew446] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2016] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND In a post hoc analysis of the ENIGMA-II trial, we sought to determine whether intraoperative dexamethasone was associated with adverse safety outcomes. METHODS Inverse probability weighting with estimated propensity scores was used to determine the association of dexamethasone administration with postoperative infection, quality of recovery, and adverse safety outcomes for 5499 of the 7112 non-cardiac surgery subjects enrolled in ENIGMA-II. RESULTS Dexamethasone was administered to 2178 (40%) of the 5499 subjects included in this analysis and was not associated with wound infection [189 (8.7%) vs 275 (8.3%); propensity score-adjusted relative risk (RR) 1.10; 95% confidence interval (CI) 0.89-1.34; P=0.38], severe postoperative nausea and vomiting on day 1 [242 (7.3%) vs 189 (8.7%); propensity score-adjusted RR 1.06; 95% CI 0.86-1.30; P=0.59], quality of recovery score [median 14, interquartile range (IQR) 12-15, vs median 14, IQR 12-16, P=0.10), length of stay in the postanaesthesia care unit [propensity score-adjusted median (IQR) 2.0 (1.3, 2.9) vs 1.9 (1.3, 3.1), P=0.60], or the primary outcome of the main trial. Dexamethasone administration was associated with a decrease in fever on days 1-3 [182 (8.4%) vs 488 (14.7%); RR 0.61; 95% CI 0.5-0.74; P<0.001] and shorter lengths of stay in hospital [propensity score-adjusted median (IQR) 5.0 (2.9, 8.2) vs 5.3 (3.1, 9.1), P<0.001]. Neither diabetes mellitus nor surgical wound contamination status altered these outcomes. CONCLUSION Dexamethasone administration to high-risk non-cardiac surgical patients did not increase the risk of postoperative wound infection or other adverse events up to day 30, and appears to be safe in patients either with or without diabetes mellitus. CLINICAL TRIAL REGISTRATION NCT00430989.
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Affiliation(s)
- T Corcoran
- Department of Anaesthesia and Pain Medicine, Royal Perth Hospital, Perth, Western Australia, Australia .,School of Medicine and Pharmacology, University of Western Australia, Perth, Western Australia, Australia.,Western Australia Health Department, Perth, Western Australia, Australia.,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - J Kasza
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - T G Short
- Department of Anaesthesia, Auckland City Hospital, Park Road, Grafton, Auckland, New Zealand
| | - E O'Loughlin
- School of Medicine and Pharmacology, University of Western Australia, Perth, Western Australia, Australia.,Department of Anaesthesia and Pain Medicine, Fiona Stanley Hospital, Perth, Western Australia, Australia
| | - M T V Chan
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - K Leslie
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.,Department of Anaesthesia and Pain Management, Royal Melbourne Hospital, Melbourne, Victoria, Australia.,Anaesthesia, Perioperative and Pain Medicine Unit, and Department of Pharmacology and Therapeutics, University of Melbourne, Melbourne, Victoria, Australia
| | - A Forbes
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - M Paech
- Department of Anaesthesia and Pain Medicine, Royal Perth Hospital, Perth, Western Australia, Australia.,School of Medicine and Pharmacology, University of Western Australia, Perth, Western Australia, Australia
| | - P Myles
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.,Department of Anaesthesia and Perioperative Medicine, Alfred Hospital, Melbourne, Victoria, Australia
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