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Xia F, Li Q, Xu L, Chen X, Li G, Li L, Cheng Z, Zhang J, Deng C, Li J, Chen R. Development and validation of an intraoperative hypothermia nomograph model for patients undergoing video-assisted thoracoscopic lobectomy: a retrospective study. Sci Rep 2024; 14:15202. [PMID: 38956148 PMCID: PMC11219828 DOI: 10.1038/s41598-024-66222-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 06/28/2024] [Indexed: 07/04/2024] Open
Abstract
This study aimed to develop and internally validate a nomogram model for assessing the risk of intraoperative hypothermia in patients undergoing video-assisted thoracoscopic (VATS) lobectomy. This study is a retrospective study. A total of 530 patients who undergoing VATS lobectomy from January 2022 to December 2023 in a tertiary hospital in Wuhan were selected. Patients were divided into hypothermia group (n = 346) and non-hypothermia group (n = 184) according to whether hypothermia occurred during the operation. Lasso regression was used to screen the independent variables. Logistic regression was used to analyze the risk factors of hypothermia during operation, and a nomogram model was established. Bootstrap method was used to internally verify the nomogram model. Receiver operating characteristic (ROC) curve was used to evaluate the discrimination of the model. Calibration curve and Hosmer Lemeshow test were used to evaluate the accuracy of the model. Decision curve analysis (DCA) was used to evaluate the clinical utility of the model. Intraoperative hypothermia occurred in 346 of 530 patients undergoing VATS lobectomy (65.28%). Logistic regression analysis showed that age, serum total bilirubin, inhaled desflurane, anesthesia duration, intraoperative infusion volume, intraoperative blood loss and body mass index were risk factors for intraoperative hypothermia in patients undergoing VATS lobectomy (P < 0.05). The area under ROC curve was 0.757, 95% CI (0.714-0.799). The optimal cutoff value was 0.635, the sensitivity was 0.717, and the specificity was 0.658. These results suggested that the model was well discriminated. Calibration curve has shown that the actual values are generally in agreement with the predicted values. Hosmer-Lemeshow test showed that χ2 = 5.588, P = 0.693, indicating that the model has a good accuracy. The DCA results confirmed that the model had high clinical utility. The nomogram model constructed in this study showed good discrimination, accuracy and clinical utility in predicting patients with intraoperative hypothermia, which can provide reference for medical staff to screen high-risk of intraoperative hypothermia in patients undergoing VATS lobectomy.
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Affiliation(s)
- Fuhai Xia
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Qiang Li
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China.
| | - Liqin Xu
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Xi Chen
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Gen Li
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Li Li
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Zhineng Cheng
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Jie Zhang
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Chaoliang Deng
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Jing Li
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Rui Chen
- Operating Room, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China.
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Lee SH, Lee YH. Hybrid operating rooms and the risk of postoperative hypothermia in pregnant women with placenta previa: A retrospective cohort study. PLoS One 2024; 19:e0305951. [PMID: 38917215 PMCID: PMC11198747 DOI: 10.1371/journal.pone.0305951] [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: 11/17/2023] [Accepted: 06/09/2024] [Indexed: 06/27/2024] Open
Abstract
BACKGROUND Births at advanced maternal ages (≥ 35 years) are increasing. This has been associated with a higher incidence of placenta previa, which increases bleeding risk. Hybrid operating rooms, designed to accommodate interventions and cesarean sections, are becoming more prominent because of their dual capabilities and benefits. However, they have been associated with increased postoperative hypothermia in pediatric settings; moreover, this has not been studied in pregnant women with placenta previa. METHODS This retrospective cohort study included pregnant women diagnosed with placenta previa who underwent elective cesarean section under general anesthesia between May 2019 and 2023. The patients were categorized according to the operating room type. The primary outcome was to determine whether the hybrid operating room is a risk factor for immediate postoperative hypothermia, defined as a tympanic membrane temperature below 36.0°C. The secondary outcomes were the effects of immediate postoperative hypothermia on the durations of postanesthetic care unit and postoperative hospital stays and incidence of complications. RESULTS Immediate postoperative hypothermia (tympanic membrane temperature < 36.0°C) was more prevalent in the hybrid than in the standard operating room group (20% vs. 36.6%, p = 0.033), with a relative risk of 2.86 (95% confidence interval 1.24-6.64, p < 0.001). Patients undergoing surgery in the hybrid operating room who experienced immediate postoperative hypothermia stayed longer in the postanesthetic care unit (26 min vs. 40 min, p < 0.001) and in the hospital after surgery (4 days; range 3-5 vs. 4 days; range 4-11, p = 0.021). However, the complication rates of both groups were not significantly different (11.3% vs 7.3%, p = 0.743). CONCLUSION Hybrid operating rooms may increase the risk of postoperative hypothermia. Postoperative hypothermia is associated with prolonged postanesthetic care unit and hospital stays. Preventing hypothermia in patients in hybrid operating rooms is of utmost importance.
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Affiliation(s)
- Sou Hyun Lee
- Department of Anesthesiology and Pain Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - You Hyun Lee
- Department of Ophthalmology, Daegu Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea
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Shen Y, Zhong X. Related factors of perioperative low body temperature and incidence of postoperative shivering in patients undergoing complex percutaneous nephrolithotomy and the effect analysis of composite insulation nursing intervention. Heliyon 2024; 10:e32126. [PMID: 38868031 PMCID: PMC11168386 DOI: 10.1016/j.heliyon.2024.e32126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/26/2024] [Accepted: 05/28/2024] [Indexed: 06/14/2024] Open
Abstract
This study aimed to analyze the factors associated with intraoperative hypothermia and postoperative shivering rates in patients undergoing complex percutaneous nephrolithotomy (PCNL) and investigate the effects of combined insulation nursing intervention. A total of 168 patients were included, with 103 patients in the control (Ctrl) group receiving routine care and 65 patients in the nursing (Nur) group receiving combined insulation nursing intervention measures. General information, surgical data, temperature, intraoperative hypothermia incidence, postoperative shivering, and complication rates were statistically analyzed between the two groups. Patient temperature, blood pressure, and blood gas indicators including pH value, bicarbonate, and lactate levels were recorded at admission (T0), before anesthesia (T1), 30 min after spinal-epidural combined anesthesia (T2), 60 min (T3), 90 min (T4), 120 min (T5), and postoperatively (T6). The results demonstrated that the average intraoperative temperature of patients in the Nur group was significantly higher than that of the Ctrl group (P < 0.001), and their incidence of hypothermia was significantly lower than that of the Ctrl group (P < 0.01). Additionally, the Nur group exhibited shorter recovery time (18.36 ± 3.58 min), extubation time (28.01 ± 3.12 min), and length of hospital stay (8.45 ± 2.14 days) compared to the Ctrl group (P < 0.05). The incidence of postoperative shivering was 4.62 %, significantly lower than that of the Ctrl group (P < 0.001). Multifactorial analysis revealed that age ≥60 years, stone diameter ≥3.0 cm, irrigation volume ≥3000 mL, nursing intervention measures, and surgical duration were the main factors influencing the occurrence of intraoperative hypothermia. Age ≥60 years, nursing intervention measures, surgical duration, and intraoperative temperature<36 °C are identified as major risk factors for postoperative shivering. This indicates that specialized nursing care and combined insulation nursing intervention measures in patients undergoing complex percutaneous nephrolithotomy contribute to reducing the incidence of intraoperative hypothermia and postoperative shivering. It is recommended to promptly address the risk factors associated with hypothermia and shivering during and after surgery to mitigate the risk of perioperative complications.
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Affiliation(s)
- Yangxi Shen
- Operation center, The University of Hongkong-Shenzhen Hospital, Shenzhen City, 518000, China
| | - Xin Zhong
- Urology Surgery, Shenzhen smaii medical center, Shenzhen City, 518000, China
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Cao B, Li Y, Liu Y, Chen X, Liu Y, Li Y, Wu Q, Ji F, Shu H. A multi-center study to predict the risk of intraoperative hypothermia in gynecological surgery patients using preoperative variables. Gynecol Oncol 2024; 185:156-164. [PMID: 38428331 DOI: 10.1016/j.ygyno.2024.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 01/27/2024] [Accepted: 02/07/2024] [Indexed: 03/03/2024]
Abstract
OBJECTIVES Hypothermia is highly common in patients undergoing gynecological surgeries under general anesthesia, so the length of hospitalization and even the risk of mortality are substantially increased. Our aim was to develop a simple and practical model to preoperatively identify gynecological surgery patients at risk of intraoperative hypothermia. METHODS In this retrospective study, we collected data from 802 patients who underwent gynecological surgery at three medical centers from June 2022 to August 2023. We further allocated the patients to a training group, an internal validation group, or an external validation group. The preliminary predictive factors for intraoperative hypothermia in gynecological patients were determined using the least absolute shrinkage and selection operator (LASSO) method. The final predictive factors were subsequently identified through multivariate logistic regression analysis, and a nomogram for predicting the occurrence of hypothermia was established. RESULTS A total of 802 patients were included, with 314 patients in the training cohort (mean age 48.5 ± 12.6 years), 130 patients in the internal validation cohort (mean age 49.9 ± 12.5 years), and 358 patients in the external validation cohort (mean age 47.6 ± 14.0 years). LASSO regression and multivariate logistic regression analyses indicated that body mass index, minimally invasive surgery, baseline heart rate, baseline body temperature, history of previous surgery, and aspartate aminotransferase level were associated with intraoperative hypothermia in gynecological surgery patients. This nomogram was constructed based on these six variables, with a C-index of 0.712 for the training cohort. CONCLUSIONS We established a practical predictive model that can be used to preoperatively predict the occurrence of hypothermia in gynecological surgery patients. CLINICAL TRIAL REGISTRATION chictr.org.cn, identifier ChiCTR2300071859.
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Affiliation(s)
- Bingbing Cao
- Department of Anesthesiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, PR China
| | - Yongxing Li
- Department of Anesthesiology, Sun Yat-sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, PR China
| | - Yongjian Liu
- Department of Pain Management, Guangdong Second Provincial General Hospital, Guangzhou 510317, PR China
| | - Xiangnan Chen
- Department of Anesthesiology, Guangdong Women and Children Hospital, Guangzhou 510010, PR China
| | - Yong Liu
- Department of Anesthesiology, Third People's Hospital of Shenzhen, Shenzhen 518112, PR China
| | - Yao Li
- Department of Anesthesiology, Shenshan Medical Center, Memorial Hospital of Sun Yat-Sen University, Shanwei 516601, PR China
| | - Qiang Wu
- Department of Anesthesiology, Third People's Hospital of Shenzhen, Shenzhen 518112, PR China
| | - Fengtao Ji
- Department of Anesthesiology, Sun Yat-sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, PR China.
| | - Haihua Shu
- Department of Anesthesiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, PR China; Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, PR China; School of Medicine, South China University of Technology, Guangzhou 510080, PR China.
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Qian M, Ye Y, Zhou J. Effect of thermal insulation on preventing hypothermia during laparoscopic radical resection for colorectal cancer. Am J Transl Res 2024; 16:2158-2165. [PMID: 38883388 PMCID: PMC11170595 DOI: 10.62347/bkby6649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 05/13/2024] [Indexed: 06/18/2024]
Abstract
OBJECTIVE To evaluate the effect of thermal insulation nursing in the operating room on preventing hypothermia during laparoscopic radical resection of colorectal cancer. METHODS Sixty colorectal cancer patients undergoing laparoscopic radical resection from June 2022 to August 2023 were included. The research group received thermal insulation nursing interventions using medical heaters and infusion heaters, while the control group received routine nursing measures. Clinical data including vital signs, intraoperative and postoperative complications, recovery time, nursing satisfaction, and psychological and sleep status were compared between the two groups. RESULTS Thirty minutes after skin incision, both groups showed decreased body temperature, and systolic and diastolic blood pressure compared to pre-surgery levels, with no significant difference between groups (P > 0.05). However, the research group exhibited lower rates of intraoperative hypothermia, postoperative infection, and other complications, as well as shorter postoperative recovery times, hospital stays, anxiety, and depression scores compared to the control group (P < 0.05). Additionally, the research group demonstrated higher comfort scores, shorter sleep latency, longer actual sleep time, and higher nursing satisfaction rate (P < 0.05). CONCLUSION Thermal insulation nursing intervention in the operating room during laparoscopic radical resection of colorectal cancer contributes to maintaining vital signs, preventing intraoperative hypothermia, reducing postoperative complications, expediting recovery, and improving psychological well-being and sleep quality. This intervention enhances patient comfort and nursing satisfaction in perioperative care.
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Affiliation(s)
- Meidan Qian
- Shengzhou People's Hospital (The First Affiliated Hospital of Zhejiang University Shengzhou Branch) Shengzhou, Zhejiang, China
| | - Yuli Ye
- Shengzhou People's Hospital (The First Affiliated Hospital of Zhejiang University Shengzhou Branch) Shengzhou, Zhejiang, China
| | - Jujng Zhou
- Shengzhou People's Hospital (The First Affiliated Hospital of Zhejiang University Shengzhou Branch) Shengzhou, Zhejiang, China
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Uçak A, Tat Çatal A, Karadağ E, Cebeci F. The Effect of Prewarming on Perioperative Hypothermia: A Systematic Review and Meta-analysis of Randomized Controlled Studies. J Perianesth Nurs 2024:S1089-9472(23)01046-8. [PMID: 38340096 DOI: 10.1016/j.jopan.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/03/2023] [Indexed: 02/12/2024]
Abstract
PURPOSE One of the methods for maintaining perioperative normothermia is prewarming. This study was conducted to investigate the effect of a preoperative prewarming intervention on perioperative body temperature. DESIGN Systematic review and meta-analysis. METHODS A literature review was conducted using PubMed, CINAHL, Cochrane Central, Science Direct, Springer Link, Scopus, Web of Science, and Ovid databases. Randomized controlled trials that investigate the effect of prewarming on body temperature in the prevention of perioperative hypothermia were included. The review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement guidelines. Methodological quality was assessed using the Cochrane Collaboration "risk of bias" tool. Meta-analysis was performed with Comprehensive Meta-Analysis, version 2. Moderator analysis and publication bias assessment were performed. Funnel plots were analyzed using Orwin's fail-safe N, Trim, and Fill test method to investigate the source of heterogeneity. FINDINGS A total of 907 studies were found. The systematic review included 27 studies. Of these, 23 were included in the intraoperative meta-analysis, and 16 were included in the postoperative meta-analysis. According to the meta-analysis results, the prewarming intervention was effective in maintaining normothermia in the intraoperative (Hedge's g = 0.972, 95% confidence intervaI = 0.674 to 1.270) and postoperative (Hedge's g = 0.818, 95% confidence intervaI = 0.520 to 1.114) periods. CONCLUSIONS The findings of this systematic review and meta-analysis showed that preoperative prewarming played a significant role in providing and maintaining perioperative normothermia.
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Affiliation(s)
- Ayşe Uçak
- Faculty of Health Sciences, Department of Nursing, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Arzu Tat Çatal
- Faculty of Nursing, Akdeniz University, Antalya, Turkey.
| | - Engin Karadağ
- Faculty of Education, Akdeniz University, Antalya, Turkey
| | - Fatma Cebeci
- Faculty of Nursing, Head of the Surgical Nursing Department, Akdeniz University, Antalya, Turkey
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Zhao B, Zhu Z, Qi W, Liu Q, Zhang Q, Jiang L, Wang C, Weng X. Construction and validation of a risk prediction model for intraoperative hypothermia in elderly patients undergoing total hip arthroplasty. Aging Clin Exp Res 2023; 35:2127-2136. [PMID: 37490260 PMCID: PMC10520156 DOI: 10.1007/s40520-023-02500-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 07/07/2023] [Indexed: 07/26/2023]
Abstract
AIMS To construct and validate an intraoperative hypothermia risk prediction model for elderly patients undergoing total hip arthroplasty (THA). METHODS We collected data from 718 patients undergoing THA in a tertiary hospital from January 2021 to December 2022. Of these patients, 512 were assigned to the modeling group from January 2021 to April 2022, and 206 participants were assigned to the validation group from May 2022 to December 2022. A logistic regression analysis was performed to construct the model. The area under the curve (AUC) was used to test the model's predictive ability. RESULTS The incidence rate of intraoperative hypothermia was 51.67%. The risk factors entered into the risk prediction model were age, preoperative hemoglobin level, intraoperative blood loss, postoperative hemoglobin level, and postoperative systolic blood pressure. The model was constructed as follows: logit (P) = - 10.118 + 0.174 × age + 1.366 × 1 (preoperative hemoglobin level) + 0.555 × 1 (postoperative hemoglobin level) + 0.009 × 1 (intraoperative blood loss) + 0.066 × 1 (postoperative systolic blood pressure). Using the Hosmer-Lemeshow test, the P value was 0.676 (AUC, 0.867). The Youden index, sensitivity, and specificity were 0.602, 0.790, and 0.812, respectively. The incidence rates of intraoperative hypothermia in the modeling and validation groups were 53.15% and 48.06%, respectively. The correct practical application rate was 89.81%. This model had good application potential. CONCLUSIONS This risk prediction model has good predictive value and can accurately predict the occurrence of intraoperative hypothermia in patients who undergo THA, which provides reliable guidance for clinical work and has good clinical application value.
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Affiliation(s)
- Bin Zhao
- Department of Anesthesiology and SICU, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Kongjiang Road 1665, Shanghai, 200092, China
| | - Zhe Zhu
- Department of Anesthesiology and SICU, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Kongjiang Road 1665, Shanghai, 200092, China
| | - Wenwen Qi
- Department of Psychogeriatric, School of Medicine, Shanghai Mental Health Center, Shanghai Jiao Tong University, South Wanping Road 600, Shanghai, 200030, China
| | - Qiuli Liu
- Department of Anesthesiology and SICU, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Kongjiang Road 1665, Shanghai, 200092, China
| | - Qi Zhang
- Department of Emergency, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Kongjiang Road 1665, Shanghai, 200092, China
| | - Liping Jiang
- Department of Nursing, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Kongjiang Road 1665, Shanghai, 200092, China.
| | - Chenglong Wang
- Department of Orthopaedic Surgery, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Kongjiang Road 1665, Shanghai, 200092, China.
| | - Xiaojian Weng
- Department of Anesthesiology and SICU, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Kongjiang Road 1665, Shanghai, 200092, China.
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Tian YN, Gao WY, Tian XR, Wang ZW. Comparative Efficacy of Six Active Warming Systems for Intraoperative Warming in Adult Patients Undergoing Laparoscopic Surgery: A Systematic Review and Network Meta-Analysis. Ther Hypothermia Temp Manag 2023; 13:92-101. [PMID: 36449377 DOI: 10.1089/ther.2022.0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Intraoperative hypothermia is very common and harmful in adult patients undergoing laparoscopic surgery. A variety of active warming systems has received close attention and has been researched by related scholars. However, the relative efficacy of these systems and which active warming system is preferred for such patients remain unclear. The aim of this study was to compare and rank six active warming systems regarding intraoperative warming efficacy in adult patients undergoing laparoscopic surgery. Following the PRISMA 2020 guidelines, relevant randomized controlled trials (RCTs) on the efficacy of different active warming systems in warming adult patients undergoing laparoscopic surgery were searched from five English databases and three Chinese databases. The quality of the studies was assessed using the Cochrane Risk of Bias tool (RoB2). The outcome was the final intraoperative core temperature. We estimated direct effects by using pairwise meta-analysis, estimated relative effects and ranking with the consistency model to conduct an NetworkMeta-Analysis (NMA). We used GRADE (Grading of Recommendations Assessment, Development, and Evaluation) to assess the certainty of the evidence. Sensitivity analysis was performed to test the robustness of the results. This study is registered with PROSPERO, with number CRD42022309057. In total, 19 RCTs involving 6 active warming systems and comprising 1364 patients were included in this NMA. The NMA once again confirmed the validity of forced-air warming (FAW) systems compared with other active warming systems, and further showed that underbody FAW was associated with more remarkable warming efficacy in different types of FAW systems. NMA was used to perform an exhaustive comparison of the warming efficacy of six active warming systems and indicated that underbody FAW was most likely to be the most effective warming system in adult patients undergoing laparoscopic surgery; however, considering the sparsity of the network, our results should be cautiously interpreted. Furthermore, a large number of high-quality RCTs comparing the warming efficacy of different competitive active warming systems are needed.
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Affiliation(s)
- Yan-Ni Tian
- The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Wei-Yin Gao
- The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Xiao-Rong Tian
- The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhi-Wen Wang
- School of Nursing, Peking University, Beijing, China
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Wongyingsinn M, Pookprayoon V. Incidence and associated factors of perioperative hypothermia in adult patients at a university-based, tertiary care hospital in Thailand. BMC Anesthesiol 2023; 23:137. [PMID: 37098492 PMCID: PMC10127435 DOI: 10.1186/s12871-023-02084-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 04/07/2023] [Indexed: 04/27/2023] Open
Abstract
BACKGROUND Inadvertent perioperative hypothermia is an unintentional drop in core body temperature to less than 36 °C perioperatively and is associated with many negative outcomes such as infection, a prolonged stay in a recovery room, and decreased patient comfort. OBJECTIVE To determine the incidence of postoperative hypothermia and to identify the associated factors with postoperative hypothermia in patients undergoing head, neck, breast, general, urology, and vascular surgery. The incidences of pre- and intraoperative hypothermia were examined as the intermediate outcomes. MATERIALS AND METHODS A retrospective chart review was conducted in adult patients undergoing surgery at a university hospital in a developing country for two months (October to November 2019). Temperatures below 36 °C were defined as hypothermia. Univariate and multivariate analyses were used to identify factors associated with postoperative hypothermia. RESULTS A total of 742 patients were analyzed, the incidence of postoperative hypothermia was 11.9% (95% CI 9.7%-14.3%), and preoperative hypothermia was 0.4% (95% CI 0.08%-1.2%). Of the 117 patients with intraoperative core temperature monitoring, the incidence of intraoperative hypothermia was 73.5% (95% CI 58.8-90.8%), and hypothermia occurred most commonly after anesthesia induction. Associated factors of postoperative hypothermia were ASA physical status III-IV (OR = 1.78, 95%CI 1.08-2.93, p = 0.023) and preoperative hypothermia (OR = 17.99, 95%CI = 1.57-206.89, p = 0.020). Patients with postoperative hypothermia had a significantly longer stay in the PACU (100 min vs. 90 min, p = 0.047) and a lower temperature when discharged from PACU (36.2 °C vs. 36.5 °C, p < 0.001) than those without hypothermia. CONCLUSION This study confirms that perioperative hypothermia remains a common problem, especially in the intraoperative and postoperative periods. High ASA physical status and preoperative hypothermia were associated factors of postoperative hypothermia. In order to minimize the incidence of perioperative hypothermia and enhance patient outcomes, appropriate temperature management should be emphasized in patients at high risk. REGISTRATION Clinical Trials.gov (NCT04307095) (13/03/2020).
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Affiliation(s)
- Mingkwan Wongyingsinn
- Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand.
| | - Varut Pookprayoon
- Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
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Shen Z, Kuroda K, Morimatsu H. The Effect of Postinduction Blood Glucose on Intraoperative Hypothermia. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59020395. [PMID: 36837596 PMCID: PMC9959156 DOI: 10.3390/medicina59020395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/10/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023]
Abstract
Background and Objectives: Hypothermia frequently occurs in patients undergoing surgery and is associated with adverse complications. Therefore, this study aimed to investigate the postinduction blood glucose and occurrence of intraoperative hypothermia in patients undergoing laparoscopic surgery. Materials and Methods: This retrospective observational study included 334 patients aged ≥20 years who had undergone elective laparoscopic surgery. The primary outcome of this study was the incidence of intraoperative hypothermia. Stratified analysis revealed differences between patients with and without diabetes. Results: Hypothermia occurred in 200 (59.9%) patients. In multivariate analysis, out-of-range postinduction glucose was independently associated with hypothermia (>150 mg/dL: odds ratio 2.17, 95% confidence interval (1.02, 4.61), p = 0.045; <110 mg/dL: odds ratio 2.02, 95% confidence interval (1.15, 3.55), p = 0.015), whereas preoperative HbA1c >6% was not significantly associated with hypothermia (odds ratio 1.02, 95% confidence interval (0.56, 1.84), p = 0.961). Considering only patients with diabetes, the incidence of hypothermia was lower (p = 0.002), the duration of hypothermia was shorter (p = 0.007), and the minimum temperature was higher (p = 0.006) in those with a postinduction glucose level of 110-150 mg/dL. Conclusions: The postinduction glucose level is independently associated with intraoperative hypothermia. Out-of-range postinduction glucose appeared to have an impact on the development of hypothermia in patients with diabetes, especially those with a postinduction glucose level <110 mg/dL.
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Affiliation(s)
| | - Kosuke Kuroda
- Correspondence: ; Tel.: +81-86-235-7327; Fax: +81-86-235-6984
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Xu R, Hu X, Sun Z, Zhu X, Tang Y. Incidence of postoperative hypothermia and shivering and risk factors in patients undergoing malignant tumor surgery: a retrospective study. BMC Anesthesiol 2023; 23:31. [PMID: 36690942 PMCID: PMC9869522 DOI: 10.1186/s12871-023-01991-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Perioperative hypothermia and shivering are common and can cause adverse outcomes. The aim of this study was to investigate the incidence of postoperative hypothermia and shivering and their risk factors in patients undergoing malignant tumor surgery. METHODS This retrospective study collected data from patients with American Society of Anesthesiologists physical status (ASA) I or II who underwent scheduled surgery from November 2020 to March 2021 at Fudan University Shanghai Cancer Center. Each patient's core body temperature was measured at three time points: time point 1 (arrival at the postanesthesia care unit (PACU)), time point 2 (after 30-min care in the PACU), and time point 3 (at discharge from the PACU). At time point 1, if the patient's body temperature was below 36 ℃, we provided an active forced-air warmer. At time point 2, if it was still below 36 ℃, the forced-air warmer was still applied until the patient was discharged from the PACU. If it reached 36 ℃, the forced-air warmer would be switched off. Univariate and multivariate logistic regression combined with stepwise methods and linear regression were used to explore risk factors for postoperative hypothermia and shivering. RESULTS The numbers (percentage) of 202 patients who developed postoperative hypothermia at the different time points were 52 (25.7%), 37 (18.3%) and 28 (13.9%). Eight patients (4.0%) experienced shivering. Multivariate logistic regression showed that high weight (OR = 0.923, 95% CI: 0.884 to 0.964, P = 0.0003) and low estimated blood loss (OR = 0.252, 95% CI: 0.115 to 0.550, P = 0.0005) were protective factors against hypothermia, while long surgical duration (OR = 3.339, 95% CI: 1.675 to 6.655, P = 0.0006) was an independent risk factor for hypothermia at time point 1. There was no risk factor associated with the occurrence of shivering (P > 0.05). There was a significant difference between the hypothermia and normothermia groups in the median length of stay in the PACU (59.0 vs. 49.0 min, P = 0.0123). CONCLUSIONS Postoperative hypothermia occurred frequently. Weight, estimated blood loss and surgical duration were significantly associated with hypothermia on arrival at the PACU.
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Affiliation(s)
- Rongrong Xu
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, 270 DongAn Road, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 DongAn Road, Shanghai, 200032, China
| | - Xinyi Hu
- Department of Oncology, Shanghai Medical College, Fudan University, 270 DongAn Road, Shanghai, 200032, China
- Department of Nursing, Fudan University Shanghai Cancer Center, 270 DongAn Road, Shanghai, 200032, China
| | - Zhirong Sun
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, 270 DongAn Road, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 DongAn Road, Shanghai, 200032, China
| | - Xuqin Zhu
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, 270 DongAn Road, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, 270 DongAn Road, Shanghai, 200032, China.
| | - Yonghong Tang
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, 270 DongAn Road, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, 270 DongAn Road, Shanghai, 200032, China.
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Yan L, Tan J, Chen H, Xiao H, Zhang Y, Yao Q, Li Y. A Nomogram for Predicting Unplanned Intraoperative Hypothermia in Patients With Colorectal Cancer Undergoing Laparoscopic Colorectal Procedures. AORN J 2023; 117:e1-e12. [PMID: 36573748 DOI: 10.1002/aorn.13845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/09/2022] [Accepted: 07/18/2022] [Indexed: 12/29/2022]
Abstract
Unplanned intraoperative hypothermia is a complication that can lead to a variety of negative outcomes, such as cardiovascular events. We aimed to develop and validate an intraoperative hypothermia risk prediction nomogram for patients with colorectal cancer undergoing laparoscopic colorectal procedures. We conducted a prospective cohort study with 1,091 patients (ie, 765 in the training cohort, 326 in the validation cohort) from October 2020 to November 2021. We included six predictors in the nomogram model: body mass index, diabetes diagnosis, ambient temperature, ambient humidity, duration of surgery, and use of a forced-air warmer. The model performed well, and the area under the curve was 0.855. These results, together with an external validation value, mean that health care professionals can use the nomogram to calculate the intraoperative hypothermia risk for patients undergoing laparoscopic colorectal procedures and make clinical decisions based on the results.
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Lee C, Lee C, Lee J, Jang G, Kim B, Park S. Comparison of Core Body Temperatures in Patients Administered Remimazolam or Propofol during Robotic-Assisted and Laparoscopic Radical Prostatectomy. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58050690. [PMID: 35630107 PMCID: PMC9144657 DOI: 10.3390/medicina58050690] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/18/2022] [Accepted: 05/21/2022] [Indexed: 11/23/2022]
Abstract
Background and Objectives: Different types of anesthetics affect thermoregulatory mechanisms, such as the redistribution of body temperature, loss of skin heat, or inhibition of thermoregulatory vasoconstriction. Therefore, we compared remimazolam with propofol in terms of core body temperature in patients undergoing robotic-assisted and laparoscopic radical prostatectomy. Materials and methods: Ninety patients were randomly assigned to either the propofol−remifentanil (PR) group or the remimazolam−remifentanil (RR) group. The PR group (n = 45) received effect-site concentrations of 6.0 μg/mL of propofol and 4 ng/mL of remifentanil, followed by 0.9 mg/kg of 1% rocuronium and maintenance with effect-site concentrations of 2−4 μg/mL of propofol and 3 ng/mL of remifentanil. The RR group (n = 45) received remimazolam 6 mg/kg/h by continuous intravenous infusion and the effect-site concentration of 4 ng/mL of remifentanil, followed by 0.9 mg/kg of 1% rocuronium, remimazolam 1−3 mg/kg/h, and remifentanil 3 ng/mL. The primary outcome was core body temperature, and secondary outcomes included vasoconstriction threshold (°C) and time to onset of vasoconstriction (min). Results: The core body temperature in the RR group was significantly higher at 60, 80, 100, 120, 140, 160, and 180 min after induction than in the PR group (p < 0.01). The vasoconstriction threshold was significantly higher in the RR group (35.2 ± 0.4) than in the PR group (34.8 ± 0.3) (p < 0.01). The time to onset of vasoconstriction was significantly less in the RR group (150.5 ± 10.2) than in the PR group (158.5 ± 8.4) (p < 0.01). However, the incidence of intraoperative hypothermia was not significant between two groups. Conclusions: Remimazolam appears to reduce vasoconstriction threshold less than and had a faster onset of vasoconstriction, resulting in superior thermoregulatory control.
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Affiliation(s)
- Cheol Lee
- Department of Anesthesiology and Pain Medicine, Wonkwang University School of Medicine Hospital, 895 Muwang-ro, Iksan 54538, Korea; (C.L.); (J.L.); (G.J.)
- Correspondence: (C.L.); (S.P.)
| | - Cheolhyeong Lee
- Department of Anesthesiology and Pain Medicine, Wonkwang University School of Medicine Hospital, 895 Muwang-ro, Iksan 54538, Korea; (C.L.); (J.L.); (G.J.)
| | - Juhwan Lee
- Department of Anesthesiology and Pain Medicine, Wonkwang University School of Medicine Hospital, 895 Muwang-ro, Iksan 54538, Korea; (C.L.); (J.L.); (G.J.)
| | - Gihyeon Jang
- Department of Anesthesiology and Pain Medicine, Wonkwang University School of Medicine Hospital, 895 Muwang-ro, Iksan 54538, Korea; (C.L.); (J.L.); (G.J.)
| | - ByoungRyun Kim
- Department of Obstetrics and Gynecology, Wonkwang University School of Medicine Hospital, 895 Muwang-ro, Iksan 54538, Korea;
| | - SeongNam Park
- Department of Obstetrics and Gynecology, Wonkwang University School of Medicine Hospital, 895 Muwang-ro, Iksan 54538, Korea;
- Correspondence: (C.L.); (S.P.)
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Cho SA, Lee SJ, Yoon S, Sung TY. Risk Factors for Postoperative Hypothermia in Patients Undergoing Robot-Assisted Gynecological Surgery: A Retrospective Cohort Study. Int J Med Sci 2022; 19:1147-1154. [PMID: 35919810 PMCID: PMC9339412 DOI: 10.7150/ijms.73225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/15/2022] [Indexed: 11/05/2022] Open
Abstract
Since postoperative hypothermia increases the morbidity and mortality rates of surgery, identifying its risk factors is an important part of perioperative management. Considering the increasing demand for robot-assisted surgery and other characteristics of conventional laparoscopic surgery, identifying the risk factors for hypothermia in robot-assisted surgery is necessary. However, this has not yet been clearly established. This study aimed to identify the risk factors and incidence rate of postoperative hypothermia in patients undergoing robot-assisted gynecological surgery. In total, 516 patients aged ≥ 19 years undergoing robot-assisted gynecological surgery at a single university hospital between January 2018 and November 2020 were retrospectively analyzed. Postoperative hypothermia was defined as 36.0°C or lower body temperature at the end of the surgery, and multivariate logistic regression analysis was performed to identify the risk factors for postoperative hypothermia. Among the 516 patients, the incidence rate of postoperative hypothermia was 28.1% in 145 patients. The independent risk factors for postoperative hypothermia included body mass index ≤ 22.9 kg/m2, baseline heart rate ≤ 73 rate/min, baseline body temperature ≤ 36.8°C, use of intraoperative nicardipine, and amount of administered intravenous fluid larger than 800 mL. Therefore, to prevent hypothermia in patients undergoing robot-assisted gynecological surgery, these risk factors must be considered.
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Affiliation(s)
- Sung-Ae Cho
- Department of Anaesthesiology and Pain Medicine, Konyang University Hospital, Myunggok Medical Research Center, Konyang University College of Medicine, Daejeon, Korea
| | - Seok-Jin Lee
- Department of Anaesthesiology and Pain Medicine, Konyang University Hospital, Myunggok Medical Research Center, Konyang University College of Medicine, Daejeon, Korea
| | - Sieun Yoon
- Department of Anaesthesiology and Pain medicine, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
| | - Tae-Yun Sung
- Department of Anaesthesiology and Pain Medicine, Konyang University Hospital, Myunggok Medical Research Center, Konyang University College of Medicine, Daejeon, Korea
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Wang M, Jiang Y, Han W, Jiang L, Mao C. Summary of the best evidence for the prevention of intraoperative unplanned hypothermia in patients undergoing laparoscopic surgery. Gland Surg 2021; 10:2790-2798. [PMID: 34733728 DOI: 10.21037/gs-21-578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/15/2021] [Indexed: 11/06/2022]
Abstract
Background This study aimed to search, analyze, and summarize relevant evidence for the prevention of unplanned hypothermia in patients undergoing laparoscopic surgery, so as to reduce the incidence of unplanned hypothermia in patients undergoing laparoscopic surgery and provide a reference for clinical medical staff. Methods According to the evidence pyramid model, relevant literature were retrieved by computer in databases. Literature quality evaluation and the evidence grading system of the Australian JBI Evidence-Based Health Care Centre Evidence Recommendation Rating System were used to evaluate the literature quality and determine the level of evidence. The time limit for retrieval was from the establishment of the databases to March 31, 2021. Results A total of 12 studies were included in this study. Of these, 5 evidence items were finally extracted, and 15 pieces of best evidence were summarized, including the risk assessment of hypothermia in patients undergoing laparoscopic surgery, temperature monitoring, ambient temperature, passive insulation measures, and active insulation measures. Conclusions The evidence for the prevention of unplanned hypothermia in patients undergoing laparoscopic surgery provided evidence-based approaches for reducing the incidence of intraoperative hypothermia for clinical staffs. It is suggested that the cultural characteristics of China, medical resources, and patients' own conditions should be considered when applying the evidence.
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Affiliation(s)
- Mindan Wang
- Operating Room, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Yingying Jiang
- Operating Room, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Wenjuan Han
- Operating Room, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Ling Jiang
- Nursing Department, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Chenrong Mao
- Nursing Department, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
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