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Lenet T, Berthelot P, Grudzinski AL, Banks A, Tropiano J, McIsaac DI, Tinmouth A, Patey AM, Fergusson DA, Martel G. Nonclinical factors affecting intraoperative red blood cell transfusion: a systematic review. Can J Anaesth 2024; 71:1023-1036. [PMID: 38509437 DOI: 10.1007/s12630-024-02739-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 03/22/2024] Open
Abstract
PURPOSE There is significant variability in intraoperative red blood cell (RBC) transfusion practice. We aimed to use the theoretical domains framework (TDF) to categorize nonclinical and behavioural factors driving intraoperative RBC transfusion practice in a systematic review of the literature. SOURCE We searched electronic databases from inception until August 2021 to identify studies evaluating nonclinical factors affecting intraoperative RBC transfusion. Using the Mixed Methods Appraisal Tool, we assessed the quality of included studies and identified relevant nonclinical factors, which were coded into TDF domains by two independent reviewers using NVivo (Lumivero, QSR International, Burlington, MA, USA). We identified common themes within domains and sorted domains based on the frequency of reported factors. PRINCIPAL FINDINGS Our systematic review identified 18 studies: nine retrospective cohort studies, six cross-sectional surveys, and three before-and-after studies. Factors related to the social influences, behavioural regulation, environmental context/resources, and beliefs about consequences domains of the TDF were the most reported factors. Key factors underlying the observed variability in transfusion practice included the social effects of peers, patients, and institutional culture on decision-making (social influences), and characteristics of the practice environment including case volume, geographic location, and case start time (environmental context/resources). Studies reported variable beliefs about the consequences of both intraoperative transfusion and anemia (beliefs about consequences). Provider- and institutional-level audits, educational sessions, and increased communication between surgeons/anesthesiologists were identified as strategies to optimize intraoperative transfusion decision-making (behavioural regulation). CONCLUSION Our systematic review has synthesized the literature on nonclinical and behavioural factors impacting intraoperative transfusion decision-making, categorized using the TDF. These findings can inform evidence-based interventions to reduce intraoperative RBC transfusion variability. STUDY REGISTRATION Open Science Framework ( https://osf.io/pm8zs/?view_only=166299ed28964804b9360c429b1218c1 ; first posted, 3 August 2022).
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Affiliation(s)
- Tori Lenet
- Department of Surgery, The Ottawa Hospital, Ottawa, ON, Canada
- Clinical Epidemiology Program, The Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | | | - Alexa L Grudzinski
- Department of Anesthesiology and Pain Medicine, University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada
| | - Alexander Banks
- Department of Surgery, The Ottawa Hospital, Ottawa, ON, Canada
| | - Joseph Tropiano
- Department of Surgery, The Ottawa Hospital, Ottawa, ON, Canada
| | - Daniel I McIsaac
- Department of Anesthesiology and Pain Medicine, University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada
| | - Alan Tinmouth
- Department of Medicine, The Ottawa Hospital, Ottawa, ON, Canada
- Canadian Blood Services, Ottawa, ON, Canada
| | - Andrea M Patey
- Clinical Epidemiology Program, The Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Dean A Fergusson
- Clinical Epidemiology Program, The Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Canadian Blood Services, Ottawa, ON, Canada
| | - Guillaume Martel
- Clinical Epidemiology Program, The Ottawa Hospital Research Institute, Ottawa, ON, Canada.
- Department of Surgery, The Ottawa Hospital - General Campus, 501 Smyth Rd, CCW 1667, Ottawa, ON, K1H 8L6, Canada.
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Association of Surgical Start Time with Outcomes of Benign Hysterectomy. J Minim Invasive Gynecol 2023; 30:389-396. [PMID: 36708764 DOI: 10.1016/j.jmig.2023.01.008] [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: 10/19/2022] [Revised: 01/10/2023] [Accepted: 01/13/2023] [Indexed: 01/27/2023]
Abstract
STUDY OBJECTIVE To evaluate whether surgical start time is associated with clinical and financial outcomes of hysterectomies performed for benign indications. DESIGN Retrospective cohort study. SETTING University 5-hospital healthcare system. PATIENTS Women who underwent benign hysterectomy between 2014 and 2019. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS We analyzed demographic, operative, and financial data to evaluate the relationships between surgical start time and perioperative outcomes including operating room time, estimated blood loss, length of stay, same-day discharge, and adverse perioperative events. Additionally, we evaluated the impact of surgical start time on total hysterectomy charges. Descriptive statistics and multivariate logistic and linear regressions were performed adjusting for confounders. Our study identified 2894 women who underwent benign hysterectomy, with 1910 hysterectomies starting prior to 12 pm (am group) and 984 hysterectomies starting after 12 pm (pm group). A pm start time was associated with higher estimated blood loss (Median 100, interquartile range 50, 200 in the am group vs Median 125, interquartile range 75, 250), increased length of stay, and decreased likelihood of same-day discharge. No significant differences were noted in the rates of adverse perioperative events between the 2 groups. Surprisingly, an afternoon start time was associated with decreased total hospital charges (median am $14 055.30 versus median pm $11 724.80). These cost differences persisted after multivariate linear regression, and when stratified by hysterectomy surgical approach, remained significant in the open and laparoscopic cohorts. CONCLUSION Afternoon hysterectomy start time is associated with increased blood loss and length of stay with decreased rates of same-day discharge; however, there was no associated increase in perioperative adverse events or mortality. Awareness regarding surgical start time and outcomes can guide surgical scheduling and optimize same-day discharge.
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Cifarelli CP, McMichael JP, Forman AG, Mihm PA, Cifarelli DT, Lee MR, Marsh W. Surgical Start Time Impact on Hospital Length of Stay for Elective Inpatient Procedures. Cureus 2021; 13:e16259. [PMID: 34277303 PMCID: PMC8269978 DOI: 10.7759/cureus.16259] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2021] [Indexed: 11/28/2022] Open
Abstract
Background Hospital length of stay (LOS) remains an important, albeit nonspecific, metric in the analysis of surgical services. Modifiable factors to reduce LOS are few in number and the ability to practically take action is limited. Surgical scheduling of elective cases remains an important task in optimizing workflow and may impact the post-surgical LOS. Methods Retrospective data from a single tertiary care academic institution were analyzed from elective adult surgical cases performed from 2017 through 2019. Emergent or urgent add-on cases were excluded. Variables included primary procedure, age, diabetes status, American Society of Anesthesiologists (ASA) class, and surgical start time. Analysis of the median LOS following surgery was performed using Mann-Whitney tests and Cox hazards model. Matched-cohort analysis of mean total hospitalization costs was performed using the Student’s t-test. Results 9,258 patients were analyzed across five surgical service lines, of which 777 patients had surgical start time after 3 PM. The median LOS for the after 3 PM group was 1 day longer than the before 3 PM start time cohort (3.0 vs 2.1, p < 0.001). Service line analysis revealed increased LOS for Orthopedics and Neurosurgery (3.0 vs 1.9, p < 0.001; 3.0 vs 2.0, p < 0.05). Multivariate analysis confirmed that start time before 3 PM predicted shorter LOS (HR = 1.214, 1.126-1.309; p < 0.001). Case-matched cost analysis for frequently performed orthopedic and neurosurgical cases with an after 3 PM start time failed to demonstrate a significant difference in total hospital charges. Conclusion Optimization of surgical services scheduling to increase the proportion of elective surgical cases started before 3 PM has the potential to decrease post-surgical LOS for adult patients undergoing Orthopedic or Neurosurgical procedures.
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Affiliation(s)
- Christopher P Cifarelli
- Neurological Surgery, West Virginia University School of Medicine, Morgantown, USA.,Radiation Oncology, West Virginia University School of Medicine, Morgantown, USA
| | | | - Alex G Forman
- Strategic Analytics, West Virginia University School of Medicine, Morgantown, USA
| | - Paul A Mihm
- Surgical Services, West Virginia University School of Medicine, Morgantown, USA
| | - Daniel T Cifarelli
- Neurosurgery, West Virginia University School of Medicine, Morgantown, USA
| | - Mark R Lee
- Neurosurgery, West Virginia University School of Medicine, Morgantown, USA
| | - Wallis Marsh
- Surgery, West Virginia University School of Medicine, Morgantown, USA
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Michaud M, Béland V, Noiseux N, Forcillo J, Stevens LM. Daytime Variation of Clinical Outcome in Cardiac Surgery: A Propensity-Matched Cohort Study. J Cardiothorac Vasc Anesth 2021; 35:3167-3175. [PMID: 33985883 DOI: 10.1053/j.jvca.2021.03.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 02/04/2023]
Abstract
OBJECTIVE The purpose of the present study was to investigate the hypothesis of a nychthemeral variation in the tolerance to ischemia and reperfusion injury in adult cardiac surgeries. DESIGN Retrospective cohort study. SETTING A single academic center. PARTICIPANTS All patients undergoing nonemergent aortic valve replacement (AVR) ± coronary artery bypass graft between January 2012 and May 2018 were included. They were divided into two groups (morning and afternoon) according to the time of the day at the beginning of surgery. Propensity score matching estimated by multivariate logistic regression with a 1:1 matching ratio was performed to ensure that the two groups were comparable. This allowed obtaining 269 pairs, for a total of 538 patients. INTERVENTION The objective of the study was to assess whether there were differences in perioperative and postoperative outcomes between the morning and the afternoon groups. RESULTS There was no between-group difference in the primary composite endpoints, namely the occurrence of death, myocardial infarction, low cardiac output, and stroke during the 30 days following the surgery. Regarding cardiac biomarkers, there were no between-group differences for both postoperative evolution of troponin T plasma levels and the maximum postoperative troponin T plasma level. CONCLUSION These results did not support the hypothesis that the timing of the surgery could influence the tolerance to ischemia and reperfusion injury, at least in patients undergoing nonemergent AVR or a combined AVR with coronary artery bypass graft.
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Affiliation(s)
- Martin Michaud
- Department of Anesthesiology, CHUM, Université de Montréal, Montreal, Canada; Faculty of medicine, University of Montreal, Canada.
| | | | - Nicolas Noiseux
- Faculty of medicine, University of Montreal, Canada; Department of Cardiac Surgery, CHUM, Université de Montréal, Montréal, Canada
| | - Jessica Forcillo
- Faculty of medicine, University of Montreal, Canada; Department of Cardiac Surgery, CHUM, Université de Montréal, Montréal, Canada
| | - Louis-Mathieu Stevens
- Faculty of medicine, University of Montreal, Canada; Department of Cardiac Surgery, CHUM, Université de Montréal, Montréal, Canada
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Qian K, Wu S, Lee W, Liu S, Li A, Cang J, Fang F. A model-based validation study of postoperative complications with considerations on operative timing. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:708. [PMID: 33987406 PMCID: PMC8106084 DOI: 10.21037/atm-21-669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Surgery is a highly technical procedure relying on high mental acuity and manual dexterity. The possibility that surgical outcomes and post-operative complications could be subject to influence by fatigue and/or circadian rhythms in surgeons has been investigated with inconsistent results. Methods We conducted a retrospective study to assess the significance of operative timing on classifying surgical complications using an interpretable machine learning approach. We trained various linear, generative as well as tree models on the surgical record data collected from a university-affiliated, tertiary teaching hospital in China by performing parameter tuning using grid search cross-validation for optimizing the F1 score. Results The results indicated that XGBoost was the best-performing model overall and its feature importance was shown to provide insight into possible timing-related associations with postoperative complications. We observed that the duration of surgery acted as the strongest indicator, and while surgery initiated at night (between 9 pm and 7 am) also ranked higher on the feature importance scale, it bore less significance than other factors such as the patient's age, gender, and type of surgery performed. Conclusions We showed that surgical records could be used to demonstrate that operative timing might affect the occurrence of postoperative complications, but only in a relatively mild way while potentially entangling with multiple factors.
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Affiliation(s)
- Kun Qian
- Department of Information and Intelligence Development, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Simeng Wu
- Department of Information and Intelligence Development, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Weishan Lee
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shiwen Liu
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ailun Li
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jing Cang
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fang Fang
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
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Yager J. Sleepy Psychotherapists: How Clinicians' Biological Factors May Affect the Conduct of Psychotherapy. Am J Psychother 2021; 74:30-35. [PMID: 33715396 DOI: 10.1176/appi.psychotherapy.20200030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Numerous therapist variables and cognitive biases can affect the quality of the therapeutic alliance and the conduct and outcomes of psychotherapy. This article aims to examine factors that potentially affect clinician performance, including chronobiological variables of clinicians and patients. METHODS The author reviewed literature pertaining to biological influences on human cognitive performance and considered how these factors may apply to the practice of psychotherapy. RESULTS Biological factors potentially affecting the conduct and quality of psychotherapy were identified. These factors include decision fatigue, hunger, sleep deficit, shift work, and several chronobiological issues related to circadian rhythms and episodic ultradian rhythms. In addition, misaligned scheduling of psychotherapy sessions in relation to therapist and patient evening-morning chronotypes may impede the effectiveness of psychotherapy. CONCLUSIONS The practice of psychotherapy is cognitively demanding, requiring that clinicians remain constantly alert and in command of their executive functions. Decreases in clinician alertness resulting from homeostatic depletion, chronobiologically misaligned schedules, and illness-associated factors may reduce the quality and benefit of psychotherapy sessions. Mitigation strategies are available. Investigations of these factors are needed.
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Affiliation(s)
- Joel Yager
- Department of Psychiatry, University of Colorado School of Medicine, Aurora
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