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Ernest EE, Bhattacharjee S, Baidya DK, Anand RK, Ray BR, Bansal VK, Subramaniam R, Maitra S. Effect of incremental PEEP titration on postoperative pulmonary complications in patients undergoing emergency laparotomy: a randomized controlled trial. J Clin Monit Comput 2024; 38:445-454. [PMID: 37968546 DOI: 10.1007/s10877-023-01091-5] [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: 03/01/2023] [Accepted: 10/08/2023] [Indexed: 11/17/2023]
Abstract
Postoperative pulmonary complications (PPC) has a significant negative impact and are associated with increased length of hospital stay and cost of care. Emergency surgery is a well-established risk factor for PPC. Previous studies reported that personalized positive end-expiratory pressure (PEEP) might reduce postoperative atelectasis and postoperative pulmonary complications. N = 168 adult patients undergoing major emergency laparotomy under general anesthesia were recruited in this study. A minimum driving pressure based incremental PEEP titration was compared to a fixed PEEP of 5 cmH2O. The primary outcome was PPC up to postoperative day 7. The mean (standard deviation) of the recruited patients was 41.7(16.1)y, and 48.8% (82 of 168 patients) were female. The risk of PPC at postoperative day 7 was similar in both the study groups [Relative risk (RR) (95% Confidence interval, CI) 0.81 (0.58, 1.13); p = 0.25]. In addition, the incidence of intraoperative hypotension [p = 0.75], oxygen-free days at day 28 [p = 0.27], duration of postoperative hospital stay [p = 0.50], length of postoperative intensive care unit stay [p = 0.28], and in-hospital mortality [p = 0.38] were similar in two groups. Incidence of PPC was not reduced with the use of an individualized PEEP strategy based on lowest driving pressure. However, the incidence of hypotension and bradycardia was also not increased with titrated PEEP.Trial Registration: www.ctri.nic.in ; CTRI/2020/12/029765.
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Affiliation(s)
- Emmanuel Easterson Ernest
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, Room No: 5013, Teaching Block, Ansari Nagar, New Delhi, 110019, India
| | - Sulagna Bhattacharjee
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, Room No: 5013, Teaching Block, Ansari Nagar, New Delhi, 110019, India
| | - Dalim K Baidya
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, Room No: 5013, Teaching Block, Ansari Nagar, New Delhi, 110019, India
| | - Rahul K Anand
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, Room No: 5013, Teaching Block, Ansari Nagar, New Delhi, 110019, India
| | - Bikash R Ray
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, Room No: 5013, Teaching Block, Ansari Nagar, New Delhi, 110019, India
| | - Virinder K Bansal
- Department of Surgical Disciplines, All India Institute of Medical Sciences, New Delhi, India
| | - Rajeshwari Subramaniam
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, Room No: 5013, Teaching Block, Ansari Nagar, New Delhi, 110019, India
| | - Souvik Maitra
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, Room No: 5013, Teaching Block, Ansari Nagar, New Delhi, 110019, India.
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Wei N, Chen JS, Hu BS, Cao Y, Dai ZP. Effects of driving pressure-guided ventilation on postoperative pulmonary complications in patients with COVID-19 undergoing abdominal surgery: A post-hoc propensity score-matched analysis. Heliyon 2024; 10:e25533. [PMID: 38333813 PMCID: PMC10850964 DOI: 10.1016/j.heliyon.2024.e25533] [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: 08/01/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/10/2024] Open
Abstract
Background Application of individualized positive end-expiratory pressure (PEEP) based on minimum driving pressure facilitates to prevent from postoperative pulmonary complications (PPCs). Whether lung protective ventilation strategy can reduce the risk of PPCs in COVID-19 patients remains unclear. In this study, we compared the effects of driving pressure-guided ventilation with conventional mechanical ventilation on PPCs in patients with COVID-19. Methods Patients infected COVID-19 within 30-day before surgery were retrospectively enrolled consecutively. Patients were divided into two group: driving pressure-guided lung protective ventilation strategy group (LPVS group) and conventional mechanical ventilation group (Control group). Propensity score matching for variables selected was used by logistic regression with the nearest-neighbor method. The outcomes were the incidence of PPCs and hypoxemia in post-anesthesia care unit. Results There was no significant difference in the baseline data between both groups (P > 0.05). The incidence of PPCs (12.73 % vs 36.36 %, χ2 = 7.068, P = 0.008) and hypoxemia [18.18 % vs 38.18 %, χ2 = 4.492, P = 0.034], and lung ultrasound scores [4.68 ± 1.60 vs 8.39 ± 1.87, t = 8.383, P < 0.001] in LPVS group were lower than control group. The PEEP, airway pressure and plateau pressure in LPVS group were higher than control group, but driving pressure and tidal volume was lower than control group, the difference was statistically significant (P < 0.05). Conclusion Individualized PEEP ventilation strategy guided by minimum driving pressure could improve oxygenation and reduce the incidence of PPCs in surgical patients with COVID-19.
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Affiliation(s)
- Na Wei
- Department of Emergency Intensive Care Unit, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Jun-Sheng Chen
- Department of Anaesthesia, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Bang-Sheng Hu
- Department of Anaesthesia, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Ya Cao
- Department of Anaesthesia, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Ze-Ping Dai
- Department of Anaesthesia, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China
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Kochupurackal JC, Bhattacharjee S, Baidya DK, Panwar R, Prakash K, Rewari V, Maitra S. Postoperative pulmonary complications with high versus standard FiO 2 in adult patients undergoing major abdominal surgery: A noninferiority trial. Surgery 2024; 175:536-542. [PMID: 38016902 DOI: 10.1016/j.surg.2023.10.020] [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: 08/08/2023] [Revised: 10/16/2023] [Accepted: 10/25/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Despite the possible clinical benefit of high intraoperative oxygen therapy on surgical site infection, the effect on postoperative respiratory function is debatable. However, it remains yet to be elucidated whether hyperoxia due to a high fraction of inspired oxygen used in conjunction with lung protective ventilation can lead to increased incidence of postoperative pulmonary complications. METHODS In this noninferiority randomized trial, an intraoperative high fraction of inspired oxygen of 0.8 (group H) was compared to a standard fraction of inspired oxygen of 0.3 to 0.4 (group S) in adult patients undergoing major elective or emergency surgery. A lung protective ventilation strategy was employed in all patients, including volume control ventilation with a tidal volume of 6 to 8 mL/kg of predicted body weight, respiratory rate of 12 beats per minute, and positive end-expiratory pressure of 5 to 8 cm H2O. Postoperative pulmonary complications were assessed on postoperative days 3 and 5 by the Melbourne group scale. RESULTS In this trial, n = 226 patients were randomized; among them, 130 patients underwent routine surgery, and 96 patients underwent emergency surgery. The median (interquartile range) of the patients was 48 (35-58) years, and 47.3% were female. Melbourne group scale scores at postoperative day 3 (median [interquartile range] 2 [1-4] in group S vs 2 [1-3] in group H; the difference in median [95% confidence interval] 0 [0, -1]; P = .13) and day 5 (median [interquartile range] 1 (0-3) in group S vs 1 [0-3] in group H; the difference in median [95% confidence interval] 0 [0, 0.5]; P = .34) were statistically similar in both the groups and the upper margin was within the predefined margin of 1. Incidence of surgical site infection (P = .46), postoperative hospital stay (P = .29), and days alive without antibiotic therapy at postoperative day 28 (P = .95) were similar in both groups. CONCLUSION High intraoperative fiO2 was noninferior to standard fiO2 in postoperative pulmonary complications in adult patients undergoing major surgery.
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Affiliation(s)
- Jose Cyriac Kochupurackal
- Department of Anaesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Sulagna Bhattacharjee
- Department of Anaesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Dalim K Baidya
- Department of Anaesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Rajesh Panwar
- Department of GI Surgery and Liver Transplantation, All India Institute of Medical Sciences, New Delhi, India
| | - Kelika Prakash
- Department of Anaesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Vimi Rewari
- Department of Anaesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Souvik Maitra
- Department of Anaesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, India.
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江 连, 陈 文, 余 伟, 胡 美, 曹 亚, 姚 卫, 陈 永. [Driving pressure-guided lung protective ventilation strategy reduces postoperative pulmonary complications in patients recovered from COVID-19]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2023; 43:1821-1826. [PMID: 37933661 PMCID: PMC10630205 DOI: 10.12122/j.issn.1673-4254.2023.10.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Indexed: 11/08/2023]
Abstract
OBJECTIVE To investigate the value of lung protective ventilation strategy (LPVS) guided by driving pressure for preventing postoperative pulmonary complications (PPCs) in patients recovered from COVID-19 and optimize intraoperative respiratory management. METHODS From December, 2022 to February, 2023, a total of 118 patients recovered from COVID-19 within a month (ASA Ⅰ~Ⅲ, aged ≥18 years) undergoing elective non-cardiac surgeries under general anesthesia in our hospital were randomized equally into LPVS group and control group.The patients in LPVS group received a tidal volume of 6 mL/kg with an individualized PEEP guided by minimum driving pressure and lung re-expansion every 30 min, and those in the control group received conventional mechanical ventilation.The incidence of PPCs and hypoxemia and pulmonary ultrasound score of the patients were compared between the two groups. RESULTS There was no significant difference in the baseline data between LPVS group and the control group (P>0.05).Compared with the control group, LPVS group showed significantly lower incidences of PPCs (16.95%vs 35.59%, χ2=5.294, P=0.021) and hypoxemia (15.25%vs 30.51%, χ2=3.890, P=0.049) with also lower pulmonary ultrasound scores (5.31±1.07 vs 8.32±2.34, t=8.986, P<0.001).The PEEP value, airway pressure and plateau pressure in LPVS group were significantly higher, but the driving pressure and the tidal volume were lower than those in the control group (P<0.05). CONCLUSION LPVS guided by driving pressure can improve oxygenation and reduce the risk of PPCs in patients recently recovered from COVID-19.
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Affiliation(s)
- 连祥 江
- />皖南医学院弋矶山医院麻醉科,安徽 芜湖 241000Department of Anesthesiology, First Affiliated Hospital of Wannan Medical College, Wuhu 241000, China
| | - 文胜 陈
- />皖南医学院弋矶山医院麻醉科,安徽 芜湖 241000Department of Anesthesiology, First Affiliated Hospital of Wannan Medical College, Wuhu 241000, China
| | - 伟 余
- />皖南医学院弋矶山医院麻醉科,安徽 芜湖 241000Department of Anesthesiology, First Affiliated Hospital of Wannan Medical College, Wuhu 241000, China
| | - 美珠 胡
- />皖南医学院弋矶山医院麻醉科,安徽 芜湖 241000Department of Anesthesiology, First Affiliated Hospital of Wannan Medical College, Wuhu 241000, China
| | - 亚 曹
- />皖南医学院弋矶山医院麻醉科,安徽 芜湖 241000Department of Anesthesiology, First Affiliated Hospital of Wannan Medical College, Wuhu 241000, China
| | - 卫东 姚
- />皖南医学院弋矶山医院麻醉科,安徽 芜湖 241000Department of Anesthesiology, First Affiliated Hospital of Wannan Medical College, Wuhu 241000, China
| | - 永权 陈
- />皖南医学院弋矶山医院麻醉科,安徽 芜湖 241000Department of Anesthesiology, First Affiliated Hospital of Wannan Medical College, Wuhu 241000, China
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L D, Kumar R, Patel N, Ayub A, Rewari V, Subramaniam R, Roy KK. Effect of Lung Compliance-Based Optimum Pressure Versus Fixed Positive End-Expiratory Pressure on Lung Atelectasis Assessed by Modified Lung Ultrasound Score in Laparoscopic Gynecological Surgery: A Prospective Randomized Controlled Trial. Cureus 2023; 15:e40278. [PMID: 37448389 PMCID: PMC10336472 DOI: 10.7759/cureus.40278] [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] [Accepted: 05/30/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Lung protective ventilation during the intraoperative period is now well established. However, the additional role of positive end-expiratory pressure (PEEP) during the intraoperative period remains uncertain in major laparoscopic gynecological surgery. The authors hypothesized that compliance-based optimum PEEP titration reduces postoperative lung atelectasis and improves outcomes. METHODS Patients undergoing major laparoscopic pelvic gynecological surgeries with healthy lungs were randomized to the fixed PEEP group (PEEP 5 cm H2O and recruitment maneuver {RM}) and optimum PEEP group (compliance-based PEEP and RM). Lung ultrasound and arterial blood gas analysis were performed at four time points. Modified lung ultrasound scoring was done, and the same was used as means of assessing lung aeration and the amount of lung atelectasis. Postoperative supplemental oxygen requirement and duration were also assessed and compared. RESULTS Lung ultrasound score (LUS) 30 minutes after extubation in fixed (Group F) and optimum (Group O) PEEP groups were median (interquartile range {IQR}) 3 (2-3) versus 1 (1-2), p=0.0001. Ventilatory parameters between Group F and Group O after lung recruitment were tidal volume (mean 357 mL {SD: 35} versus 362 mL {SD: 22}, p=0.46), PEEP (median, 5 cm H2O {IQR: 5-5} versus median 16 cm H2O {IQR: 14-18}), peak airway pressure (median 26 cm H2O {IQR: 24-28} versus median 30 cm H2O {IQR: 28-32} p<0.0001), plateau pressure (median 22 cm H2O {IQR: 20-24} versus median 26 cm H2O {IQR: 24-28} p<0.0001), static compliance (32.07±8.36 mL cm H2O-1 versus 39.58±8.99 mL cm H2O-1, p=0.0002). The number of patients requiring postoperative oxygen therapy to maintain SpO2 >94% after extubation in postanesthesia care unit (PACU) was statistically significantly greater in group F (39/41 {95%} versus 30/41 {73%}, p=0.007). Median (IQR) duration of oxygenation therapy in the first 24 hours of the postoperative period between Group F and Group O differed with statistical significance, with the median (IQR) values being 25 (20-30) minutes versus 10 (0-15) minutes (p<0.0001). CONCLUSIONS The modified lung ultrasound score significantly differed intraoperatively between the two groups, with lower scores in the optimum PEEP group. This has reflected improved postoperative outcomes in optimum PEEP group patients, with fewer patients requiring postoperative oxygen supplementation and reduced supplemental oxygen requirement duration.
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Affiliation(s)
- Deeparaj L
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Rakesh Kumar
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Nishant Patel
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Arshad Ayub
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Vimi Rewari
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Rajeshwari Subramaniam
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Kallol Kumar Roy
- Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, IND
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Liu F, Zhang W, Zhao Z, Xu X, Jian M, Han R. Effect of driving pressure on early postoperative lung gas distribution in supratentorial craniotomy: a randomized controlled trial. BMC Anesthesiol 2023; 23:176. [PMID: 37217882 DOI: 10.1186/s12871-023-02144-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 05/17/2023] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND Neurosurgical patients represent a high-risk population for postoperative pulmonary complications (PPCs). A lower intraoperative driving pressure (DP) is related to a reduction in postoperative pulmonary complications. We hypothesized that driving pressure-guided ventilation during supratentorial craniotomy might lead to a more homogeneous gas distribution in the lung postoperatively. METHODS This was a randomized trial conducted between June 2020 and July 2021 at Beijing Tiantan Hospital. Fifty-three patients undergoing supratentorial craniotomy were randomly divided into the titration group or control group at a ratio of 1 to 1. The control group received 5 cmH2O PEEP, and the titration group received individualized PEEP targeting the lowest DP. The primary outcome was the global inhomogeneity index (GI) immediately after extubation obtained by electrical impedance tomography (EIT). The secondary outcomes were lung ultrasonography scores (LUSs), respiratory system compliance, the ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen (PaO2/FiO2) and PPCs within 3 days postoperatively. RESULTS Fifty-one patients were included in the analysis. The median (IQR [range]) DP in the titration group versus the control group was 10 (9-12 [7-13]) cmH2O vs. 11 (10-12 [7-13]) cmH2O, respectively (P = 0.040). The GI tract did not differ between groups immediately after extubation (P = 0.080). The LUSS was significantly lower in the titration group than in the control group immediately after tracheal extubation (1 [0-3] vs. 3 [1-6], P = 0.045). The compliance in the titration group was higher than that in the control group at 1 h after intubation (48 [42-54] vs. 41 [37-46] ml·cmH2O-1, P = 0.011) and at the end of surgery (46 [42-51] vs. 41 [37-44] ml·cmH2O-1, P = 0.029). The PaO2/FiO2 ratio was not significantly different between groups in terms of the ventilation protocol (P = 0.117). At the 3-day follow-up, no postoperative pulmonary complications occurred in either group. CONCLUSIONS Driving pressure-guided ventilation during supratentorial craniotomy did not contribute to postoperative homogeneous aeration, but it may lead to improved respiratory compliance and lower lung ultrasonography scores. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov NCT04421976.
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Affiliation(s)
- Feifei Liu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
- Department of Anesthesiology, Beijing Fangshan Liangxiang Hospital, Beijing, China
| | - Wei Zhang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
| | - Zhanqi Zhao
- Institute of Technical Medicine, Furtwangen University, Villingen-Schwenningen, Germany
| | - Xin Xu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
| | - Minyu Jian
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
| | - Ruquan Han
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China.
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Driving pressure-guided ventilation improves homogeneity in lung gas distribution for gynecological laparoscopy: a randomized controlled trial. Sci Rep 2022; 12:21687. [PMID: 36522433 PMCID: PMC9755264 DOI: 10.1038/s41598-022-26144-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
To investigate whether driving pressure-guided ventilation could contribute to a more homogeneous distribution in the lung for gynecological laparoscopy. Chinese patients were randomized, after pneumoperitoneum, to receive either positive end expiratory pressure (PEEP) of 5 cm H2O (control group), or individualized PEEP producing the lowest driving pressure (titration group). Ventilation homogeneity is quantified as the global inhomogeneity (GI) index based on electrical impedance tomography, with a lower index implying more homogeneous ventilation. The perioperative arterial oxygenation index and respiratory system mechanics were also recorded. Blood samples were collected for lung injury biomarkers including interleukin-10, neutrophil elastase, and Clara Cell protein-16. A total of 48 patients were included for analysis. We observed a significant increase in the GI index immediately after tracheal extubation compared to preinduction in the control group (p = 0.040) but not in the titration group (p = 0.279). Furthermore, the GI index was obviously lower in the titration group than in the control group [0.390 (0.066) vs 0.460 (0.074), p = 0.0012]. The oxygenation index and respiratory compliance were significantly higher in the titration group than in the control group. No significant differences in biomarkers or hemodynamics were detected between the two groups. Driving pressure-guided PEEP led to more homogeneous ventilation, as well as improved gas exchange and respiratory compliance for patients undergoing gynecological laparoscopy.Trial Registration: ClinicalTrials.gov NCT04374162; first registration on 05/05/2020.
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Zhou J, Chen C, Cheng N, Xing J, Guo R, Li L, Yang D, Hei Z, Zhou S. Perioperative administration of methylprednisolone was associated with postoperative pulmonary complications in elderly patients undergoing hip fracture surgery. Aging Clin Exp Res 2022; 34:2005-2012. [PMID: 35925516 DOI: 10.1007/s40520-022-02166-0] [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: 03/13/2022] [Accepted: 05/26/2022] [Indexed: 11/01/2022]
Abstract
BACKGROUND Postoperative pulmonary complications (PPCs) seriously affect the postoperative prognosis of elderly patients underwent hip fracture surgery. Although methylprednisolone is increasingly used, the association between perioperative methylprednisolone and PPCs is still controversial. The study aims to determine whether perioperative administration of methylprednisolone is associated with PPCs in elderly patients during hip fracture surgery. PATIENTS AND METHODS In this retrospective cohort study, records of 584 patients (≥ 65 years) who underwent hip fracture surgery between January 2013 and October 2020 were extracted. Univariate and multivariate regression analysis were performed to identify the risk factors for PPCs. To further explore the association between administration of methylprednisolone and PPCs, 53 patients received methylprednisolone and 53 patients without methylprednisolone were matched for the confounding factors using propensity score matching (PSM) analysis. The odds ratios (OR) and 95% confidence intervals (CI) for the above variables were analyzed. RESULTS The incidence of PPCs during postoperative hospitalization was 6.83% (38/556) among the elderly patients following hip fracture surgery. Patients with PPCs had higher postoperative mortality rate, longer hospital stay, more hospitalization cost, and higher incidence of cardiac arrest (all P < 0.05). Multivariate logistic regression analysis showed that age, hypertension, hypoglycemia, hypoproteinemia and perioperative methylprednisolone were independent risk factors for PPCs. Moreover, administration of methylprednisolone was significantly correlated with PPCs both before PSM adjustment (OR = 3.25; 95% CI, 1.67 to 6.33; P = 0.001) and after PSM adjustment (OR = 6.68; 95% CI, 1.40 to 31.82; P = 0.017). CONCLUSION Perioperative administration of methylprednisolone is a risk factor for PPCs in elderly patients undergoing hip fracture surgery.
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Affiliation(s)
- Jun Zhou
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, 510630, China
| | - Chaojin Chen
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, 510630, China.
| | - Nan Cheng
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, 510630, China
| | - Jibin Xing
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, 510630, China
| | - Rongchang Guo
- Guangzhou AID Cloud Technology Co., LTD, Guangzhou, 510000, China
| | - Lusi Li
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, 510630, China
| | - Dong Yang
- Guangzhou AID Cloud Technology Co., LTD, Guangzhou, 510000, China
| | - Ziqing Hei
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, 510630, China.
| | - Shaoli Zhou
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, 510630, China.
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Chen C, Yang D, Gao S, Zhang Y, Chen L, Wang B, Mo Z, Yang Y, Hei Z, Zhou S. Development and performance assessment of novel machine learning models to predict pneumonia after liver transplantation. Respir Res 2021; 22:94. [PMID: 33789673 PMCID: PMC8011203 DOI: 10.1186/s12931-021-01690-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 03/22/2021] [Indexed: 02/06/2023] Open
Abstract
Background Pneumonia is the most frequently encountered postoperative pulmonary complications (PPC) after orthotopic liver transplantation (OLT), which cause high morbidity and mortality rates. We aimed to develop a model to predict postoperative pneumonia in OLT patients using machine learning (ML) methods. Methods Data of 786 adult patients underwent OLT at the Third Affiliated Hospital of Sun Yat-sen University from January 2015 to September 2019 was retrospectively extracted from electronic medical records and randomly subdivided into a training set and a testing set. With the training set, six ML models including logistic regression (LR), support vector machine (SVM), random forest (RF), adaptive boosting (AdaBoost), extreme gradient boosting (XGBoost) and gradient boosting machine (GBM) were developed. These models were assessed by the area under curve (AUC) of receiver operating characteristic on the testing set. The related risk factors and outcomes of pneumonia were also probed based on the chosen model. Results 591 OLT patients were eventually included and 253 (42.81%) were diagnosed with postoperative pneumonia, which was associated with increased postoperative hospitalization and mortality (P < 0.05). Among the six ML models, XGBoost model performed best. The AUC of XGBoost model on the testing set was 0.734 (sensitivity: 52.6%; specificity: 77.5%). Pneumonia was notably associated with 14 items features: INR, HCT, PLT, ALB, ALT, FIB, WBC, PT, serum Na+, TBIL, anesthesia time, preoperative length of stay, total fluid transfusion and operation time. Conclusion Our study firstly demonstrated that the XGBoost model with 14 common variables might predict postoperative pneumonia in OLT patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-021-01690-3.
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Affiliation(s)
- Chaojin Chen
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Guangzhou, 10630, Guangdong, People's Republic of China
| | - Dong Yang
- Guangzhou AID Cloud Technology Co., LTD, Guangzhou, People's Republic of China
| | - Shilong Gao
- Department of Information, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Yihan Zhang
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Guangzhou, 10630, Guangdong, People's Republic of China
| | - Liubing Chen
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Guangzhou, 10630, Guangdong, People's Republic of China
| | - Bohan Wang
- Guangzhou AID Cloud Technology Co., LTD, Guangzhou, People's Republic of China
| | - Zihan Mo
- Guangzhou AID Cloud Technology Co., LTD, Guangzhou, People's Republic of China
| | - Yang Yang
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Guangzhou, 510630, Guangdong, People's Republic of China.
| | - Ziqing Hei
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Guangzhou, 10630, Guangdong, People's Republic of China.
| | - Shaoli Zhou
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, No. 600 Tianhe Road, Guangzhou, 10630, Guangdong, People's Republic of China.
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10
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Mini G, Ray BR, Anand RK, Muthiah T, Baidya DK, Rewari V, Sahni P, Maitra S. Effect of driving pressure-guided positive end-expiratory pressure (PEEP) titration on postoperative lung atelectasis in adult patients undergoing elective major abdominal surgery: A randomized controlled trial. Surgery 2021; 170:277-283. [PMID: 33771357 DOI: 10.1016/j.surg.2021.01.047] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/22/2021] [Accepted: 01/28/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND As respiratory system compliances are heterogenous, we hypothesized that individualized intraoperative positive end-expiratory pressure titration on the basis of lowest driving pressure can reduce postoperative atelectasis and improve intraoperative oxygenation and postoperative lung functions. METHODS Eighty-two adult patients undergoing major abdominal surgery were recruited in this randomized trial. In the titrated positive end-expiratory pressure group, positive end-expiratory pressure was titrated incrementally until lowest driving pressure was achieved, and the same procedure was repeated in every 2 hours. In the fixed positive end-expiratory pressure group, a positive end-expiratory pressure of 5 cmH2O was used throughout the surgery. The primary objective of this study was lung ultrasound score noted at the completion of surgery and 5 minutes after extubation at 12 lung areas bilaterally. RESULTS Mean (standard deviation) age of the recruited patients were 43.8 (17.3) years, and 50% of all patients (41 of 82) were women. Lung ultrasound aeration scores were significantly higher in the fixed positive end-expiratory pressure group both before and after extubation (median [interquartile range] 7 [5-8] vs 4 [2-6] before extubation and 8 [6-9] vs 5 [3-7] after extubation; P = .0004 and P = .0011, respectively). Incidence of postoperative pulmonary complications was significantly lower in the titrated positive end-expiratory pressure group (absolute risk difference [95% CI] 17.1% [32.5%-1.7%]; P = .034). The number of patients requiring postoperative supplemental oxygen therapy to maintain SpO2 >95%, the requirement of intraoperative rescue therapy, and the duration of hospital stay were similar in both of the groups. CONCLUSION Intraoperative titrated positive end-expiratory pressure reduced postoperative lung atelectasis in adult patients undergoing major abdominal surgery. Further large clinical trials are required to know its effect on postoperative pulmonary complications.
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Affiliation(s)
- Gouri Mini
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Bikash R Ray
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Rahul K Anand
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Thilaka Muthiah
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Dalim K Baidya
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Vimi Rewari
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, New Delhi, India
| | - Peush Sahni
- Department of GI Surgery & Liver Transplantation, All India Institute of Medical Sciences, New Delhi, India
| | - Souvik Maitra
- Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, New Delhi, India.
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11
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Wiering L, Sponholz F, Brandl A, Dziodzio T, Jara M, Dargie R, Eurich D, Schmelzle M, Sauer IM, Aigner F, Kotsch K, Pratschke J, Öllinger R, Ritschl PV. Perioperative Pleural Drainage in Liver Transplantation: A Retrospective Analysis from a High-Volume Liver Transplant Center. Ann Transplant 2020; 25:e918456. [PMID: 31949125 PMCID: PMC6988474 DOI: 10.12659/aot.918456] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Pleural effusions represent a common complication after liver transplantation (LT) and chest drain (CD) placement is frequently necessary. MATERIAL AND METHODS In this retrospective cohort study, adult LT recipients between 2009 and 2016 were analyzed for pleural effusion formation and its treatment within the first 10 postoperative days. The aim of the study was to compare different settings of CD placement with regard to intervention-related complications. RESULTS Overall, 597 patients met the inclusion criteria, of which 361 patients (60.5%) received at least 1 CD within the study period. Patients with a MELD >25 were more frequently affected (75.7% versus 56.0%, P<0.001). Typically, CDs were placed in the intensive care unit (ICU) (66.8%) or in the operating room (14.1% during LT, 11.5% in the context of reoperations). In total, 97.0% of the patients received a right-sided CD, presumably caused by local irritations. Approximately one-third (35.4%) of ICU-patients required pre-interventional optimization of coagulation. Of the 361 patients receiving a CD, 15 patients (4.2%) suffered a post-interventional hemorrhage and 6 patients (1.4%) had a pneumothorax requiring further treatment. Less complications were observed when the CD was performed in the operating room compared to the ICU: 1 out 127 patients (0.8%) versus 20 out of 332 patients (6.0%); P=0.016. CONCLUSIONS CD placement occurring in the operating room was associated with fewer complications in contrast to placement occurring in the ICU. Planned CD placement in the course of surgery might be favorable in high-risk patients.
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Affiliation(s)
- Leke Wiering
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Felix Sponholz
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Andreas Brandl
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Tomasz Dziodzio
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Maximilian Jara
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Richard Dargie
- Division of Emergency and Acute Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Dennis Eurich
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Moritz Schmelzle
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Igor M Sauer
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Felix Aigner
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Katja Kotsch
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Johann Pratschke
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Robert Öllinger
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Paul Viktor Ritschl
- Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,BIH Charité Clinician Scientist Program, Berlin Institute of Health (BIH), Berlin, Germany
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12
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N-Acetylcysteine inhalation improves pulmonary function in patients received liver transplantation. Biosci Rep 2018; 38:BSR20180858. [PMID: 30217943 PMCID: PMC6165840 DOI: 10.1042/bsr20180858] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 09/02/2018] [Accepted: 09/12/2018] [Indexed: 02/08/2023] Open
Abstract
Postoperative pulmonary complications (PPCs) following orthotopic liver transplantation (OLT) are associated with high morbidity and mortality rates. The effect of N-acetylcysteine (NAC) inhalation on the incidence of PPCs and the outcomes of patients undergoing OLT is unknown. This prospective randomized controlled clinical trial was conducted to investigate the effect of NAC inhalation during OLT on PPCs. Sixty patients were randomly assigned to the NAC group (n = 30) or the control group (n = 30) to receive inhaled NAC or sterilized water, respectively, for 30 min before surgery and 3 h after reperfusion. The incidence of early PPCs and outcomes including survival rate were assessed. Biomarkers including tumor necrosis factor (TNF)-α, interleukin (IL)-8, Clara cell secretory protein (CC16), intercellular adhesion molecule (ICAM)-1, and superoxide dismutase (SOD) were measured in exhaled breath condensate (EBC) at T1 (before surgery) and T2 (at the end of operation) as well as in serum at T1, T2, T3 (12 h after operation), and T4 (24 h after operation). A total of 42 patients (20 in the NAC group and 22 in the control group) were enrolled in the final analysis. Atomization inhaled NAC significantly reduced the incidence of PPCs after OLT. The levels of TNF-α, IL-8, CC16, and ICAM-1 in EBC were significantly lower, and SOD activity was higher, at T2 in the NAC group; similar data were found in serum at T2, T3, and T4. In summary, perioperative NAC inhalation may reduce the incidence of PPCs and improve patient outcomes after OLT.
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