{"title":"Middle Eastern and North African: Recognizing the New US Census Category in Anesthesiology Research and Practice","authors":"Karen Semaan, Dmitry Tumin","doi":"10.1213/ane.0000000000007198","DOIUrl":"https://doi.org/10.1213/ane.0000000000007198","url":null,"abstract":"An abstract is unavailable.","PeriodicalId":7799,"journal":{"name":"Anesthesia & Analgesia","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Substance-Use Disorders in Young Patients—Much More Than Preop Questions and Potential for Drug Interactions","authors":"Timothy W. Martin, Elizabeth A. Steele","doi":"10.1213/ane.0000000000007232","DOIUrl":"https://doi.org/10.1213/ane.0000000000007232","url":null,"abstract":"An abstract is unavailable.","PeriodicalId":7799,"journal":{"name":"Anesthesia & Analgesia","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Heena Garg, Vishnu Narayanan M R., Puneet Khanna, Bharat Yalla
{"title":"Comparison of Phenylephrine Bolus and Infusion Regimens on Maternal and Fetal Outcomes During Cesarean Delivery: A Systematic Review and Meta-Analysis","authors":"Heena Garg, Vishnu Narayanan M R., Puneet Khanna, Bharat Yalla","doi":"10.1213/ane.0000000000007156","DOIUrl":"https://doi.org/10.1213/ane.0000000000007156","url":null,"abstract":"US Clinical registry databases were searched. Studies comparing phenylephrine boluses (both therapeutic and prophylactic) with infusion (both fixed- and variable-rate) assessing various feto-maternal outcomes were included. The primary outcome was the incidence of maternal hypotension. Secondary maternal outcomes included the incidence of reactive hypertension, bradycardia, nausea, or vomiting; secondary neonatal outcomes included umbilical arterial pH, partial pressure of oxygen (paO2), umbilical venous pH, fetal acidosis, Apgar Scores at 1 and 5 minutes. All outcomes were quantitatively analyzed using the random effects model. Risk of bias was assessed using the Cochrane Collaboration R0B 2.0 tool. RESULTS: We included 15 studies with 2153 parturients. The parturients receiving phenylephrine bolus during cesarean delivery under spinal or combined spinal-epidural anesthesia had a significant increase in the incidence of predelivery hypotension compared to phenylephrine infusion (risk ratio [RR], 2.34, 95% confidence interval [CI], 1.72–3.18). Reactive hypertension (RR, 0.48, 95% CI, 0.29–0.79) and bradycardia (RR, 0.57, 95% CI, 0.41–0.79) were less common in the parturients receiving phenylephrine bolus; whereas, vomiting (RR, 2.15, 95% CI, 1.53–3.03) was more common compared to the infusion group. No statistically significant difference was observed in the incidence of nausea or any fetal outcomes (umbilical artery pH, paO2, umbilical venous pH, fetal acidosis, and Apgar scores at 1 and 5 minutes) between either of the groups. Three studies had a high risk of bias. CONCLUSIONS: A prophylactic phenylephrine infusion significantly reduces the incidence of predelivery hypotension in parturients undergoing cesarean delivery under neuraxial anesthesia in comparison to the therapeutic or prophylactic phenylephrine bolus group. A prophylactic phenylephrine infusion may be considered in all parturients without preexisting hypertensive disorder or cardiovascular disorders to reduce the risk of predelivery hypotension. More evidence is needed to guide optimal hemodynamic management for patients with hypertensive or cardiovascular disorders....","PeriodicalId":7799,"journal":{"name":"Anesthesia & Analgesia","volume":"197 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eline Kho,Rogier V Immink,Bjorn J P van der Ster,Ward H van der Ven,Jimmy Schenk,Markus W Hollmann,Johan T M Tol,Lotte E Terwindt,Alexander P J Vlaar,Denise P Veelo
{"title":"Defining Postinduction Hemodynamic Instability With an Automated Classification Model.","authors":"Eline Kho,Rogier V Immink,Bjorn J P van der Ster,Ward H van der Ven,Jimmy Schenk,Markus W Hollmann,Johan T M Tol,Lotte E Terwindt,Alexander P J Vlaar,Denise P Veelo","doi":"10.1213/ane.0000000000007315","DOIUrl":"https://doi.org/10.1213/ane.0000000000007315","url":null,"abstract":"BACKGROUNDPostinduction hypotension (PIH) may be associated with increased morbidity and mortality. In earlier studies, the definition of PIH is solely based on different absolute or relative thresholds. However, the time-course (eg, how fast blood pressure drops during induction) is rarely incorporated, whereas it might represent the hemodynamic instability of a patient. We propose a comprehensive model to distinguish hemodynamically unstable from stable patients by combining blood pressure thresholds with the magnitude and speed of decline.METHODSThis prospective study included 375 adult elective noncardiac surgery patients. Noninvasive blood pressure was continuously measured between 5 minutes before up to 15 minutes after the first induction agent had been administered. An expert panel rated whether the patient experienced clinically relevant hemodynamic instability or not. Interrater correlation coefficient and intraclass correlation were computed to check for consistency between experts. Next, an automated classification model for clinically relevant hemodynamic instability was developed using mean, maximum, minimum systolic, mean, diastolic arterial blood pressure (SAP, MAP, and DAP, respectively) and their corresponding time course of decline. The model was trained and tested based on the hemodynamic instability labels provided by the experts.RESULTSIn total 78 patients were classified as having experienced hemodynamic instability and 279 as not. The hemodynamically unstable patients were significantly older (7 years, 95% confidence interval (CI), 4-11, P < .001), with a higher prevalence of chronic obstructive pulmonary disease (COPD) (3% higher, 95% CI, 1-8, P = .036). Before induction, hemodynamically unstable patients had a higher SAP (median (first-third quartile): 161 (145-175) mm Hg vs 150 (134-166) mm Hg, P < .001) compared to hemodynamic stable patients. Interrater agreement between experts was 0.92 (95% CI, 0.89-0.94). The random forest classifier model showed excellent performance with an area under the receiver operating curve (AUROC) of 0.96, a sensitivity of 0.84, and specificity of 0.94.CONCLUSIONSBased on the high sensitivity and specificity, the developed model is able to differentiate between clinically relevant hemodynamic instability and hemodynamic stable patients. This classification model will pave the way for future research concerning hemodynamic instability and its prevention.","PeriodicalId":7799,"journal":{"name":"Anesthesia & Analgesia","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142490750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yan-Ying Xiao,Hai-Ding Zou,Xiu-Nan Qin,Rong Zhu,Ru-Ping Dai
{"title":"A Comparison of Remimazolam versus Propofol on Blood Pressure Changes During Therapeutic Endoscopic Retrograde Cholangiopancreatography: A Randomized Controlled Trial.","authors":"Yan-Ying Xiao,Hai-Ding Zou,Xiu-Nan Qin,Rong Zhu,Ru-Ping Dai","doi":"10.1213/ane.0000000000007309","DOIUrl":"https://doi.org/10.1213/ane.0000000000007309","url":null,"abstract":"BACKGROUNDIntraoperative hypotension is the most common adverse event in endoscopic retrograde cholangiopancreatography (ERCP) and is usually attributed to the vasodilatory effect of the anesthetic. The aim of this randomized controlled trial was to evaluate the impact of remimazolam versus propofol on blood pressure changes during the therapeutic ERCP procedure.METHODSAdult patients scheduled for elective therapeutic ERCP were randomized to receive either remimazolam or propofol anesthesia (40 patients in each group). The primary outcomes included the change in mean arterial pressure (MAP) during induction and the area under the baseline (AUB), calculated as the blood pressure below baseline multiplied by the duration, throughout the procedure. These measures, respectively, indicated the severity of blood pressure decrease during anesthesia induction and the overall impact of blood pressure changes throughout the procedure. Any incidences of hypotension, defined as MAP <65 mm Hg for at least 1 minute, were recorded. The recovery time and any adverse events were also reported.RESULTSThe change in MAP after induction was smaller in the remimazolam group compared to the propofol group (-7.5 [-14.0 to 0] mm Hg vs -25.0 [-33.8 to -14.3] mm Hg), with a median difference of 17.0 mm Hg (95% confidence interval [CI], 12.0-22.0; P <.001). The AUB in the remimazolam group was less than in the propofol group (-373 [-82 to -854] mm Hg·min vs -705 [-272 to -1100] mm Hg·min), with a median difference of 255 mm Hg·min (95% CI, 29-477; P =.021). The incidence of hypotension was significantly lower for remimazolam than propofol (5% vs 30%; P =.006). There were no serious adverse events in either group.CONCLUSIONSRemimazolam may be considered as an alternative to propofol for general anesthesia during therapeutic ERCP procedures, with the potential advantage of stable hemodynamics.","PeriodicalId":7799,"journal":{"name":"Anesthesia & Analgesia","volume":"96 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142490752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Xenon and Argon as Neuroprotective Treatments for Perinatal Hypoxic-Ischemic Brain Injury: A Preclinical Systematic Review and Meta-Analysis.","authors":"Mariana Barros,Min Liang,Noemi Iannucci,Robert Dickinson","doi":"10.1213/ane.0000000000007223","DOIUrl":"https://doi.org/10.1213/ane.0000000000007223","url":null,"abstract":"Xenon and argon are currently being evaluated as potential neuroprotective treatments for acquired brain injuries. Xenon has been evaluated clinically as a treatment for brain ischemia with equivocal results in small trials, but argon has not yet undergone clinical evaluation. Several preclinical studies have investigated xenon or argon as treatments in animal models of perinatal hypoxic-ischemic encephalopathy (HIE). A systematic review of MEDLINE and Embase databases was performed. After screening of titles, abstracts, and full text, data were extracted from included studies. A pairwise meta-analysis of neuroprotective efficacy was performed using a random effects model. Heterogeneity was investigated using subgroup analysis, funnel plot asymmetry, and Egger's regression. The protocol was prospectively registered on PROSPERO (CRD42022301986). A total of 21 studies met the inclusion criteria. The data extracted included measurements from 1591 animals, involving models of HIE in mice, rats, and pigs. The meta-analysis found that both xenon and argon had significant (P < .0001) neuroprotective efficacies. The summary estimate for xenon was 39.7% (95% confidence interval [CI], 28.3%-51.1%) and for argon it was 70.3% (95% CI, 59.0%-81.7%). The summary effect for argon was significantly (P < .001) greater than that of xenon. Our results provide evidence supporting further investigation of xenon and argon as neuroprotective treatments for HIE.","PeriodicalId":7799,"journal":{"name":"Anesthesia & Analgesia","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142490749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bin Gu,Zhang-Xiang Huang,Hui-Dan Zhou,Yan-Hong Lian,Shuang He,Meng Ge,Hui-Fang Jiang
{"title":"A Randomized Controlled Trial of Adding Deep Parasternal Intercostal Plane Block to Interpectoral-Pectoserratus Plane Block in Breast Cancer Surgery.","authors":"Bin Gu,Zhang-Xiang Huang,Hui-Dan Zhou,Yan-Hong Lian,Shuang He,Meng Ge,Hui-Fang Jiang","doi":"10.1213/ane.0000000000007218","DOIUrl":"https://doi.org/10.1213/ane.0000000000007218","url":null,"abstract":"BACKGROUNDThe interpectoral-pectoserratus plane block is expected to anesthetize the lateral breast, but it is unclear whether the deep parasternal intercostal plane block may enhance recovery by providing analgesia to the medial breast.METHODSPatients undergoing breast cancer surgery were randomly assigned to receive either the interpectoral-pectoserratus block (single block) or interpectoral-pectoserratus combined with deep parasternal intercostal block (combined block). The primary outcome was the quality of recovery-15 questionnaire score assessed at 24 hours postoperatively. Secondary measures included dermatomal block assessment, pain severity, opioid consumption, opioid-related adverse events, hospital length of stay, and chronic postsurgical pain at 3 months after surgery.RESULTSOne hundred and sixteen patients were recruited, 58 in the single block group and 58 in the combined block group. There was no important difference in the 24-hour quality of recovery scores with mean (standard deviation [SD]) 123.6 (6.3) in the single block group and 123.2 (7.1) in the combined block group (mean difference, 0.4; 95% confidence interval [CI], -2.0 to 2.9; P =.731). There was greater dermatomal block on medial breast in the combined block group. There were no differences in other secondary outcomes.CONCLUSIONSAddition of deep parasternal intercostal plane block was not superior to interpectoral-pectoserratus plane block alone for the quality of recovery in patients undergoing breast cancer surgery.","PeriodicalId":7799,"journal":{"name":"Anesthesia & Analgesia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142490755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laura A Graham,Samantha S Illarmo,Sherry M Wren,Michelle C Odden,Seshadri C Mudumbai
{"title":"Variations in Current Practice and Protocols of Intraoperative Multimodal Analgesia: A Cross-Sectional Study Within a Six-Hospital US Health Care System.","authors":"Laura A Graham,Samantha S Illarmo,Sherry M Wren,Michelle C Odden,Seshadri C Mudumbai","doi":"10.1213/ane.0000000000007299","DOIUrl":"https://doi.org/10.1213/ane.0000000000007299","url":null,"abstract":"BACKGROUNDMultimodal analgesia (MMA) aims to reduce surgery-related opioid needs by adding nonopioid pain medications in postoperative pain management. In light of the opioid epidemic, MMA use has increased rapidly over the past decade. We hypothesize that the rapid adoption of MMA has resulted in variation in practice. This cross-sectional study aimed to determine how MMA practices have changed over the past 6 years and whether there is variation in use by patient, provider, and facility characteristics.METHODSOur study population includes all patients undergoing surgery with general anesthesia at 1 of 6 geographically similar hospitals in the United States between January 1, 2017 and December 31, 2022. Intraoperative pain medications were obtained from the hospital's perioperative information management system. MMA was defined as an opioid plus at least 2 other nonopioid analgesics. Frequencies, χ2 tests (χ2), range, and interquartile range (IQR) were used to describe variation in MMA practice over time, by patient and procedure characteristics, across hospitals, and across anesthesiologists. Multivariable logistic regression was conducted to understand the independent contributions of patient and procedural factors to MMA use.RESULTSWe identified 25,386 procedures among 21,227 patients. Overall, 46.9% of cases met our definition of MMA. Patients who received MMA were more likely to be younger females with a lower comorbidity burden undergoing longer and more complex procedures that included an inpatient admission. MMA use has increased steadily by an average of 3.0% each year since 2017 (95% confidence interval =2.6%-3.3%). There was significant variation in use across hospitals (n = 6, range =25.9%-68.6%, χ2 = 3774.9, P < .001) and anesthesiologists (n = 190, IQR =29.8%-65.8%, χ2 = 1938.5, P < .001), as well as by procedure characteristics. The most common MMA protocols contained acetaminophen plus regional anesthesia (13.0% of protocols) or acetaminophen plus dexamethasone (12.2% of protocols). During the study period, the use of opioids during the preoperative or intraoperative period decreased from 91.4% to 86.0% of cases; acetaminophen use increased (41.9%-70.5%, P < .001); dexamethasone use increased (24.0%-36.1%, P < .001) and nonsteroidal anti-inflammatory drugs (NSAIDs) increased (6.9%-17.3%, P < .001). Gabapentinoids and IV lidocaine were less frequently used but also increased (0.8%-1.6% and 3.4%-5.3%, respectively, P < .001).CONCLUSIONSIn a large integrated US health care system, approximately 50% of noncardiac surgery patients received MMA. Still, there was wide variation in MMA use by patient and procedure characteristics and across hospitals and anesthesiologists. Our findings highlight a need for further research to understand the reasons for these variations and guide the safe and effective adoption of MMA into routine practice.","PeriodicalId":7799,"journal":{"name":"Anesthesia & Analgesia","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142490753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Novel Cancer Therapeutics: Perioperative Implications and Challenges.","authors":"Cristina Gutierrez,Prabalini Rajendram,Olakunle Idowu","doi":"10.1213/ane.0000000000007210","DOIUrl":"https://doi.org/10.1213/ane.0000000000007210","url":null,"abstract":"Since the introduction of immunotherapy and targeted therapies, patients not only have adequate tumoral response to these treatments, but their quality of life has improved due to milder toxicities. However, due to their wide mechanisms of action, the toxicity profile for these therapies is broad, can have an insidious onset, and their recognition can be challenging. Rarely, some of these toxicities can cause significant morbidity if not diagnosed early and lead to intensive care unit (ICU) admission and death. Anesthesiologists are likely to encounter not only a wide spectrum of these toxicities but also a wide range of severity. In some cases, they could be the first to make the diagnosis and therefore need to be prepared to rapidly assess, establish differentials, perform a diagnostic workup, and evaluate the impact the toxicity could have on the patients' care during the perioperative period. In this article, we set to review toxicities of novel cancer therapies such as checkpoint inhibitors and targeted therapies, that could present in the perioperative setting. This article will help as a guide for anesthesiologists to recognize their clinical presentation, the approach to their diagnosis, and their impact on patient care.","PeriodicalId":7799,"journal":{"name":"Anesthesia & Analgesia","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142490748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kim I Albers-Warlé,Leonie S Helder,Laszlo A Groh,Fatih Polat,Ivo F Panhuizen,Marc M J Snoeck,Matthijs Kox,Lucas van Eijk,Leo A B Joosten,Mihai G Netea,Yutaka Negishi,Musa Mhlanga,Christiaan Keijzer,Gert-Jan Scheffer,Michiel C Warlé
{"title":"Postoperative Innate Immune Dysregulation, Proteomic, and Monocyte Epigenomic Changes After Colorectal Surgery: A Substudy of a Randomized Controlled Trial.","authors":"Kim I Albers-Warlé,Leonie S Helder,Laszlo A Groh,Fatih Polat,Ivo F Panhuizen,Marc M J Snoeck,Matthijs Kox,Lucas van Eijk,Leo A B Joosten,Mihai G Netea,Yutaka Negishi,Musa Mhlanga,Christiaan Keijzer,Gert-Jan Scheffer,Michiel C Warlé","doi":"10.1213/ane.0000000000007297","DOIUrl":"https://doi.org/10.1213/ane.0000000000007297","url":null,"abstract":"BACKGROUNDColorectal surgery is associated with moderate-to-severe postoperative complications in over 25% of patients, predominantly infections. Monocyte epigenetic alterations leading to immune tolerance could explain postoperative increased susceptibility to infections. This research explores whether changes in monocyte DNA accessibility contribute to postoperative innate immune dysregulation.METHODSDamage-associated molecular patterns (DAMPs) and ex vivo cytokine production capacity were measured in a randomized controlled trial (n = 100) in colorectal surgery patients, with additional exploratory subgroup proteomic (proximity extension assay; Olink) and epigenomic analyses (Assay for Transposase-Accessible Chromatin [ATAC sequencing]). Monocytes of healthy volunteers were used to study the effect of high-mobility group box 1 (HMGB1) and heat shock protein 70 (HSP70) on cytokine production capacity in vitro.RESULTSPlasma DAMPs were increased after surgery. HMGB1 showed a mean 235% increase from before- (preop) to the end of surgery (95% confidence interval [CI] [166 - 305], P < .0001) and 90% increase (95% CI [63-118], P = .0004) preop to postoperative day 1 (POD1). HSP70 increased by a mean 12% from preop to the end of surgery (95% CI [3-21], not significant) and 30% to POD1 (95% CI [18-41], P < .0001). Nuclear deoxyribonucleic acid (nDNA) increases by 66% (95% CI [40-92], P < .0001) at the end of surgery and 94% on POD1 (95% CI [60-127], P < .0001). Mitochondrial DNA (mtDNA) increases by 370% at the end of surgery (95% CI [225-515], P < .0001) and by 503% on POD1 (95% CI [332-673], P < .0001). In vitro incubation of monocytes with HSP70 decreased cytokine production capacity of tumor necrosis factor (TNF) by 46% (95% CI [29-64], P < .0001), IL-6 by 22% (95% CI [12-32], P = .0004) and IL-10 by 19% (95% CI [12-26], P = .0015). In vitro incubation with HMGB1 decreased cytokine production capacity of TNF by 34% (95% CI [3-65], P = .0003), interleukin 1β (IL-1β) by 24% (95% CI [16-32], P < .0001), and IL-10 by 40% (95% CI [21-58], P = .0009). Analysis of the inflammatory proteome alongside epigenetic shifts in monocytes indicated significant changes in gene accessibility, particularly in inflammatory markers such as CXCL8 (IL-8), IL-6, and interferon-gamma (IFN-γ). A significant enrichment of interferon regulatory factors (IRFs) was found in loci exhibiting decreased accessibility, whereas enrichment of activating protein-1 (AP-1) family motifs was found in loci with increased accessibility.CONCLUSIONSThese findings illuminate the complex epigenetic modulation influencing monocytes' response to surgical stress, shedding light on potential biomarkers for immune dysregulation. Our results advocate for further research into the role of anesthesia in these molecular pathways and the development of personalized interventions to mitigate immune dysfunction after surgery.","PeriodicalId":7799,"journal":{"name":"Anesthesia & Analgesia","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142490754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}