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Sermon A, Verhulst E, Aerden L, Hoekstra H. A retrospective chart analysis with 5-year follow-up of early care for geriatric hip fracture patients: why we should continue talking about hip fractures. Eur J Trauma Emerg Surg 2024:10.1007/s00068-024-02514-x. [PMID: 38592463 DOI: 10.1007/s00068-024-02514-x] [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: 12/24/2023] [Accepted: 03/30/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Timing of surgery remains a topic of debate for hip fracture treatment in the geriatric patient population. The quality indicator "early surgery" was implemented in 2014 at the Department of Trauma Surgery of the University Hospitals Leuven to enhance timely operative treatment. In this follow-up study, we aim to evaluate the performance of this quality indicator, the clinical outcomes, and room for improvement. METHODS The charts of 1190 patients surgically treated for an acute hip fracture were reviewed between June 2017 and May 2022 at the University Hospitals Leuven. Primary endpoints were adherence to early surgery, defined as surgery within the next calendar day, and the evaluation of the reasons for deviating from this protocol. Secondary endpoints were length of stay (LOS); intensive care unit (ICU) admission and length of ICU stay; mortality after 30 days, 60 days, 90 days, and 6 months; and 90-day readmission rate. Pearson's Chi-square test and Mann-Whitney U test were used for data analysis. RESULTS One thousand eighty-four (91.1%) patients received early surgery versus 106 (8.9%) patients who received delayed surgery. The main reasons for surgical delay were the use of anticoagulants (33%), a general health condition not allowing safe surgery and/or existing comorbidities requiring workup prior to surgery (26.4%), and logistical reasons (17.9%). Patient delay and transfer from other hospitals were responsible for respectively 8.5% and 6.6% of delayed surgery. Early surgery resulted in a significantly shorter LOS and ICU stay (12 [8-25] vs. 18 [10-36] and 3 [2-6] vs. 7 [3-13] days, early vs. delayed surgery, respectively). No significant reduction was observed in ICU admission, mortality, and readmission rate. CONCLUSION We have been able to maintain the early surgery hip fracture protocol in approximately 90% of the patients. Comorbidities and anticoagulant use were responsible for delayed surgery in the majority of the patients. Correct implementation of the existing protocol on anticoagulant use could lead to a one-third decrease in the number of delayed surgeries. Subsequently, since the LOS and ICU stay in the delayed surgery group were significantly longer, a further increase of early surgery will lower the current economic burden.
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Affiliation(s)
- An Sermon
- Department of Trauma Surgery, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven - University of Leuven, Leuven, Belgium
| | - Evelyne Verhulst
- Department of Trauma Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Laurens Aerden
- Department of Orthopaedics, University Hospitals Leuven, Leuven, Belgium
| | - Harm Hoekstra
- Department of Trauma Surgery, University Hospitals Leuven, Leuven, Belgium.
- Department of Development and Regeneration, KU Leuven - University of Leuven, Leuven, Belgium.
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Zhang D, Dyer GSM, Earp BE. The Relationship Between Preoperative International Normalized Ratio and Postoperative Major Bleeding in Total Shoulder Arthroplasty. J Am Acad Orthop Surg Glob Res Rev 2024; 8:01979360-202404000-00010. [PMID: 38569086 PMCID: PMC10994459 DOI: 10.5435/jaaosglobal-d-23-00174] [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: 08/30/2023] [Revised: 01/26/2024] [Accepted: 03/01/2024] [Indexed: 04/05/2024]
Abstract
INTRODUCTION This study aimed to assess the relationship between preoperative international normalized ratio (INR) levels and major postoperative bleeding events after total shoulder arthroplasty (TSA). METHODS The American College of Surgeons National Surgical Quality Improvement Program database was queried for TSA from 2011 to 2020. A final cohort of 2405 patients with INR within 2 days of surgery were included. Patients were stratified into four groups: INR ≤ 1.0, 1.0 < INR ≤ 1.25, 1.25< INR ≤ 1.5, and INR > 1.5. The primary outcome was bleeding requiring transfusion within 72 hours, and secondary outcome variables included complication, revision surgery, readmission, and hospital stay duration. Multivariable logistic and linear regression analyses adjusted for relevant comorbidities were done. RESULTS Of the 2,405 patients, 48% had INR ≤ 1.0, 44% had INR > 1.0 to 1.25, 7% had INR > 1.25 to 1.5, and 1% had INR > 1.5. In the adjusted model, 1.0 < INR ≤ 1.25 (OR 1.7, 95% CI 1.176 to 2.459), 1.25 < INR ≤ 1.5 (OR 2.508, 95% CI 1.454 to 4.325), and INR > 1.5 (OR 3.200, 95% CI 1.233 to 8.302) were associated with higher risks of bleeding compared with INR ≤ 1.0. DISCUSSION The risks of thromboembolism and bleeding lie along a continuum, with higher preoperative INR levels conferring higher postoperative bleeding risks after TSA. Clinicians should use a patient-centered, multidisciplinary approach to balance competing risks.
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Affiliation(s)
- Dafang Zhang
- From the Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA (Dr. Zhang, Dr. Dyer, and Dr. Earp), and the Harvard Medical School, Boston, MA (Dr. Zhang, Dr. Dyer, and Dr. Earp)
| | - George S. M. Dyer
- From the Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA (Dr. Zhang, Dr. Dyer, and Dr. Earp), and the Harvard Medical School, Boston, MA (Dr. Zhang, Dr. Dyer, and Dr. Earp)
| | - Brandon E. Earp
- From the Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA (Dr. Zhang, Dr. Dyer, and Dr. Earp), and the Harvard Medical School, Boston, MA (Dr. Zhang, Dr. Dyer, and Dr. Earp)
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Wang KY, Quan T, Kapoor S, Gu A, Best MJ, Kreulen RT, Srikumaran U. The influence of elevated international normalized ratio on complications following total shoulder arthroplasty. Shoulder Elbow 2023; 15:53-64. [PMID: 37692874 PMCID: PMC10492533 DOI: 10.1177/17585732221088974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 01/16/2022] [Accepted: 02/21/2022] [Indexed: 09/12/2023]
Abstract
Background Identifying preoperative risk factors for complications following total shoulder arthroplasty (TSA) has both clinical and financial implications. The purpose of this study was to determine the influence of different degrees of preoperative INR elevation on complications following TSA. Methods Patients undergoing primary TSA from 2007 to 2018 were identified in a national database. Patients were stratified into 4 cohorts: INR of <1.0, INR of >1.0 to 1.25, INR of >1.25 to 1.5, and INR of >1.5. Postoperative complications were assessed. Multivariate logistic regressions were performed to adjust for differences in demographics and comorbidities among the INR groups. Results Following adjustment and relative to patients with an INR of <1.0, those with INR of >1.0-1.25, >1.25-1.5, and >1.5 had 1.6-times, 2.4-times, and 2.8-times higher odds of having postoperative bleeding requiring transfusion, respectively (p < 0.05 for all). Relative to patients with INR <1.0, those with INR of > 1.25-1.5 and INR of >1.5 had 7.8-times and 7.0-times higher odds of having pulmonary complications, respectively (p < 0.05 for both). Discussion With increasing INR levels, there is an independent and step-wise increase in odd ratios for postoperative complications. Current guidelines for preoperative INR thresholds may need to be adjusted for more predictive risk-stratification for TSA. Level of Evidence III.
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Affiliation(s)
- Kevin Y Wang
- Department of Orthopaedic Surgery, Johns Hopkins, Columbia, MD, USA
| | - Theodore Quan
- Department of Orthopaedic Surgery, George Washington Hospital, Washington, DC, USA
| | - Shrey Kapoor
- Department of Orthopaedic Surgery, Johns Hopkins, Columbia, MD, USA
| | - Alex Gu
- Department of Orthopaedic Surgery, George Washington Hospital, Washington, DC, USA
| | - Matthew J Best
- Department of Orthopaedic Surgery, Johns Hopkins, Columbia, MD, USA
| | | | - Uma Srikumaran
- Department of Orthopaedic Surgery, Johns Hopkins, Columbia, MD, USA
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Chen H, Ahmad G, Colasurdo M, Yarbrough K, Schrier C, Phipps MS, Cronin CA, Mehndiratta P, Cole JW, Wozniak M, Miller TR, Gandhi D, Jindal G, Chaturvedi S. Mildly elevated INR is associated with worse outcomes following mechanical thrombectomy for acute ischemic stroke. J Neurointerv Surg 2023; 15:e117-e122. [PMID: 35961666 PMCID: PMC10593142 DOI: 10.1136/jnis-2022-019283] [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: 06/17/2022] [Accepted: 08/01/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Elevated International Normalized Ratio (INR) is a marker of coagulopathy, but its impact on outcomes following mechanical thrombectomy (MT) in patients with stroke is unclear. This study investigates the impact of mild INR elevations on clinical outcomes following MT. METHODS In this retrospective cohort study, consecutive patients with stroke treated with MT were identified from 2015 to 2020 at a Comprehensive Stroke Center. Demographic information, past medical history, INR, National Institutes of Health Stroke Scale score, use of tissue plasminogen activator, and last known normal to arteriotomy time were recorded. Outcome measures included modified Thrombolysis in Cerebral Infarction (mTICI) score, modified Rankin Scale (mRS) score at 90 days, and intracerebral hemorrhage (ICH). Patients were divided into two groups: normal INR (0.8-1.1) and mildly elevated INR (1.2-1.7). RESULTS A total of 489 patients were included for analysis, of which 349 had normal INR and 140 had mildly elevated INR. After multivariable adjustments, mildly elevated INR was associated with lower odds of excellent outcomes (mRS 0-1, OR 0.24, p=0.009), lower odds of functional independence (mRS 0-2, OR 0.38, p=0.038), and higher odds of 90-day mortality (OR 3.45, p=0.018). Elevated INR was not associated with a higher likelihood of ICH, and there were no differences in rates of HI1, HI2, PH1, or PH2 hemorrhagic transformations; however, elevated INR was associated with significantly higher odds of 90-day mortality in patients with ICH (OR 6.22, p=0.024). This effect size was larger than in patients without ICH (OR 3.38, p<0.001). CONCLUSION In patients with stroke treated with MT, mildly elevated INR is associated with worse clinical outcomes after recanalization and may worsen the mortality risk of hemorrhagic transformations.
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Affiliation(s)
- Huanwen Chen
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
- Department of Neurology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Ghasan Ahmad
- Department of Radiology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Marco Colasurdo
- Department of Radiology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Karen Yarbrough
- Department of Neurology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Chad Schrier
- Department of Neurology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Michael S Phipps
- Department of Neurology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Carolyn A Cronin
- Department of Neurology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Prachi Mehndiratta
- Department of Neurology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - John W Cole
- Department of Neurology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Marcella Wozniak
- Department of Neurology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Timothy R Miller
- Department of Radiology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Dheeraj Gandhi
- Department of Radiology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Gaurav Jindal
- Department of Radiology, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Seemant Chaturvedi
- Department of Neurology, University of Maryland Medical Center, Baltimore, Maryland, USA
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Mekkawy KL, Chaudhry YP, Mawn JG, MacMahon A, Oni JK, Sterling RS, Sotsky RB, Khanuja HS. Determining a preoperative international normalised ratio threshold safe for hip fracture surgery. Hip Int 2023; 33:941-947. [PMID: 36650617 DOI: 10.1177/11207000221148096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
INTRODUCTION The purpose of this study was first, to assess the relationship between preoperative INR (international normalised ratio) and postoperative complication rates in patients with a hip fracture, and second, to establish a threshold for INR below which the risk of complications is comparable to those in patients with a normal INR. METHODS We retrospectively reviewed the American College of Surgeons National Surgical Quality Improvement Program and found 35,910 cases who had undergone surgery for a hip fracture between 2012 and 2018. Cases were stratified into 4 groups based on their preoperative INR levels: <1.4; ⩾1.4 and <1.6; ⩾1.6 and <1.8 and ⩾1.8. These cohorts were assessed for differences in preoperative factors, intraoperative factors, and postoperative course. Multivariate logistic regression was used to assess the risk of transfusion, 30-day mortality, cardiac complications, and wound complications adjusting for all preoperative and intraoperative factors. RESULTS Of the 35,910 cases, 33,484 (93.2%) had a preoperative INR < 1.4; 867 (2.4%) an INR ⩾1.4 and <1.6; 865 (2.4%) an INR ⩾ 1.6 and <1.8 and 692 (1.9%) an INR ⩾ 1.8. A preoperative INR ⩾ 1.8 was independently associated with an increased risk of bleeding requiring transfusion. A preoperative INR ⩾ 1.6 was associated with an increased risk of mortality. CONCLUSIONS We found that an INR of <1.6 is a safe value for patients who are to undergo surgery for a hip fracture. Below this value, patients avoid an increased risk of both transfusion and 30-day mortality seen with higher INR values. These findings may allow adjustment of preoperative protocols and improve the outcome of hip fracture surgery in this group of patients.
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Affiliation(s)
- Kevin L Mekkawy
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yash P Chaudhry
- Department of Orthopaedic Surgery, Philadelphia College of Osteopathic Medicine, Philadelphia, PA, USA
| | - John G Mawn
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Aoife MacMahon
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Julius K Oni
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Robert S Sterling
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Rachel B Sotsky
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Harpal S Khanuja
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Shi Y, Zhang G, Ma C, Xu J, Xu K, Zhang W, Wu J, Xu L. Machine learning algorithms to predict intraoperative hemorrhage in surgical patients: a modeling study of real-world data in Shanghai, China. BMC Med Inform Decis Mak 2023; 23:156. [PMID: 37563676 PMCID: PMC10416513 DOI: 10.1186/s12911-023-02253-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/31/2023] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND Prediction tools for various intraoperative bleeding events remain scarce. We aim to develop machine learning-based models and identify the most important predictors by real-world data from electronic medical records (EMRs). METHODS An established database of surgical inpatients in Shanghai was utilized for analysis. A total of 51,173 inpatients were assessed for eligibility. 48,543 inpatients were obtained in the dataset and patients were divided into haemorrhage (N = 9728) and without-haemorrhage (N = 38,815) groups according to their bleeding during the procedure. Candidate predictors were selected from 27 variables, including sex (N = 48,543), age (N = 48,543), BMI (N = 48,543), renal disease (N = 26), heart disease (N = 1309), hypertension (N = 9579), diabetes (N = 4165), coagulopathy (N = 47), and other features. The models were constructed by 7 machine learning algorithms, i.e., light gradient boosting (LGB), extreme gradient boosting (XGB), cathepsin B (CatB), Ada-boosting of decision tree (AdaB), logistic regression (LR), long short-term memory (LSTM), and multilayer perception (MLP). An area under the receiver operating characteristic curve (AUC) was used to evaluate the model performance. RESULTS The mean age of the inpatients was 53 ± 17 years, and 57.5% were male. LGB showed the best predictive performance for intraoperative bleeding combining multiple indicators (AUC = 0.933, sensitivity = 0.87, specificity = 0.85, accuracy = 0.87) compared with XGB, CatB, AdaB, LR, MLP and LSTM. The three most important predictors identified by LGB were operative time, D-dimer (DD), and age. CONCLUSIONS We proposed LGB as the best Gradient Boosting Decision Tree (GBDT) algorithm for the evaluation of intraoperative bleeding. It is considered a simple and useful tool for predicting intraoperative bleeding in clinical settings. Operative time, DD, and age should receive attention.
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Affiliation(s)
- Ying Shi
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, China
| | - Guangming Zhang
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, China
| | - Chiye Ma
- Shanghai Institute of Computing Technology, 546 YuYuan Road, Shanghai, 200040, China
| | - Jiading Xu
- Shanghai Institute of Computing Technology, 546 YuYuan Road, Shanghai, 200040, China
| | - Kejia Xu
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, China
| | - Wenyi Zhang
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, China
| | - Jianren Wu
- Shanghai Institute of Computing Technology, 546 YuYuan Road, Shanghai, 200040, China
| | - Liling Xu
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, China.
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Xu Y, Huang Z, Zhang P, Zhong J, Zhang W, Hu M, Huang X, Wu Z, Xu G, Zhang M, Sun W. Effect of INR on Outcomes of Endovascular Treatment for Acute Vertebrobasilar Artery Occlusion. Transl Stroke Res 2023:10.1007/s12975-023-01176-y. [PMID: 37442918 DOI: 10.1007/s12975-023-01176-y] [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: 06/29/2023] [Revised: 07/04/2023] [Accepted: 07/07/2023] [Indexed: 07/15/2023]
Abstract
Endovascular treatment (EVT) has been proven to be the standard treatment for acute vertebrobasilar artery occlusion (VBAO). This study aimed to analyze the effects of international normalized ratio (INR) indicators on outcomes in patients with acute VBAO treated with EVT. Dynamic data on INR in patients with VBAO who received endovascular treatment (EVT) at 65 stroke centers in China were retrospectively enrolled. Outcome measures included the modified Rankin Scale (mRS) score at 90 days and 1 year and symptomatic intracranial hemorrhage (sICH). The associations between elevated INR (INR > 1.1), INR variability (time-weighted variance of INR changes), and various clinical outcomes were analyzed in all patients and subgroups stratified by oral anticoagulation (OAC) by mixed logistic regression analysis. A total of 1825 patients met the study criteria, of which 1384 had normal INR and 441 had elevated INR. Multivariate analysis showed that elevated INR was significantly associated with poor functional outcomes (mRS 4-6) at 90 days (odds ratio [OR] 1.36, 95% confidence interval [CI] 1.08-1.72) and 1 year (OR 1.32, 95% CI 1.05-1.66), but was not associated with an increased risk of sICH (OR 1.00, 95% CI 0.83-1.20). Similar associations exist between INR variability and poor functional outcomes at 90 days (OR 2.17, 95% CI 1.09-4.30), 1 year (OR 2.28, 95% CI 1.16-4.46), and sICH (OR 1.11, 95% CI 0.93-1.33). Subgroup analyses further revealed that elevated INR and INR variability remained associated with poor functional outcomes in patients not receiving oral anticoagulation (OAC) therapy, while no significant associations were observed in OAC-treated patients, regardless of whether they were on warfarin or direct oral anticoagulants. Elevated INR and INR variability in VBAO patients treated with EVT were associated with poor functional outcomes. The mechanism underlying the association between elevated INR and poor functional outcomes might be attributed to the fact that elevated INR indirectly reflects the burden of comorbidities, which could independently worsen outcomes. These findings underscore the importance of a comprehensive and dynamic evaluation of INR levels in the management of VBAO patients receiving EVT, providing valuable insights for optimizing patient outcomes.
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Affiliation(s)
- Yingjie Xu
- Stroke Center & Department of Neurology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, China
| | - Zhixin Huang
- Department of Neurology, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
| | - Pan Zhang
- Stroke Center & Department of Neurology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, China
| | - Jinghui Zhong
- Stroke Center & Department of Neurology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, China
| | - Wanqiu Zhang
- Stroke Center & Department of Neurology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, China
| | - Miaomiao Hu
- Stroke Center & Department of Neurology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, China
| | - Xianjun Huang
- Department of Neurology, Yijishan Hospital, Wannan Medical College, Wuhu, Anhui, China
| | - Zongyi Wu
- Department of Neurology, Hospital of Traditional Chinese Medicine of Zhongshan, Zhongshan, Guangdong, China
| | - Guoqiang Xu
- Department of Neurology, The First People's Hospital of Yongkang, Yongkang, Zhejiang, China
| | - Min Zhang
- Department of Neurology, Jiangmen Central Hospital, Guangdong, Jiangmen, China.
| | - Wen Sun
- Stroke Center & Department of Neurology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, China.
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Chen J, Tang Y, Shen Z, Wang W, Hou J, Li J, Chen B, Mei Y, Liu S, Zhang L, Lu S. Predicting and Analyzing Restenosis Risk after Endovascular Treatment in Lower Extremity Arterial Disease: Development and Assessment of a Predictive Nomogram. J Endovasc Ther 2023:15266028231158294. [PMID: 36891634 DOI: 10.1177/15266028231158294] [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: 03/10/2023]
Abstract
PURPOSE This study aimed to develop and internally validate nomograms for predicting restenosis after endovascular treatment of lower extremity arterial diseases. MATERIALS AND METHODS A total of 181 hospitalized patients with lower extremity arterial disease diagnosed for the first time between 2018 and 2019 were retrospectively collected. Patients were randomly divided into a primary cohort (n=127) and a validation cohort (n=54) at a ratio of 7:3. The least absolute shrinkage and selection operator (LASSO) regression was used to optimize the feature selection of the prediction model. Combined with the best characteristics of LASSO regression, the prediction model was established by multivariate Cox regression analysis. The predictive models' identification, calibration, and clinical practicability were evaluated by the C index, calibration curve, and decision curve. The prognosis of patients with different grades was compared by survival analysis. Internal validation of the model used data from the validation cohort. RESULTS The predictive factors included in the nomogram were lesion site, use of antiplatelet drugs, application of drug coating technology, calibration, coronary heart disease, and international normalized ratio (INR). The prediction model demonstrated good calibration ability, and the C index was 0.762 (95% confidence interval: 0.691-0.823). The C index of the validation cohort was 0.864 (95% confidence interval: 0.801-0.927), which also showed good calibration ability. The decision curve shows that when the threshold probability of the prediction model is more significant than 2.5%, the patients benefit significantly from our prediction model, and the maximum net benefit rate is 30.9%. Patients were graded according to the nomogram. Survival analysis found that there was a significant difference in the postoperative primary patency rate between patients of different classifications (log-rank p<0.001) in both the primary cohort and the validation cohort. CONCLUSION We developed a nomogram to predict the risk of target vessel restenosis after endovascular treatment by considering information on lesion site, postoperative antiplatelet drugs, calcification, coronary heart disease, drug coating technology, and INR. CLINICAL IMPACT Clinicians can grade patients after endovascular procedure according to the scores of the nomograms and apply intervention measures of different intensities for people at different risk levels. During the follow-up process, an individualized follow-up plan can be further formulated according to the risk classification. Identifying and analyzing risk factors is essential for making appropriate clinical decisions to prevent restenosis.
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Affiliation(s)
- Jinxing Chen
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
| | - Yanan Tang
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
| | - Zekun Shen
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
| | - Weiyi Wang
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
| | - Jiaxuan Hou
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
| | - Jiayan Li
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
| | - Bingyi Chen
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
| | - Yifan Mei
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
| | - Shuang Liu
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
| | - Liwei Zhang
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
| | - Shaoying Lu
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi, P. R. China
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Stoleriu MG, Gerckens M, Zimmermann J, Schön J, Damirov F, Samm N, Kovács J, Stacher-Priehse E, Kellerer C, Jörres RA, Kauke T, Ketscher C, Grützner U, Hatz R. Preoperative risk factors predict perioperative allogenic blood transfusion in patients undergoing primary lung cancer resections: a retrospective cohort study from a high-volume thoracic surgery center. BMC Surg 2023; 23:44. [PMID: 36849951 PMCID: PMC9972742 DOI: 10.1186/s12893-023-01924-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 01/27/2023] [Indexed: 03/01/2023] Open
Abstract
BACKGROUND Our study aimed to identify preoperative predictors for perioperative allogenic blood transfusion (ABT) in patients undergoing major lung cancer resections in order to improve the perioperative management of patients at risk for ABT. METHODS Patients admitted between 2014 and 2016 in a high-volume thoracic surgery clinic were retrospectively evaluated in a cohort study based on a control group without ABT and the ABT group requiring packed red blood cell units within 15 days postoperatively until discharge. The association of ABT with clinically established parameters (sex, preoperative anemia, liver and coagulation function, blood groups, multilobar resections) was analyzed by contingency tables, receiver operating characteristics (ROC) and logistic regression analysis, taking into account potential covariates. RESULTS 60 out of 529 patients (11.3%) required ABT. N1 and non-T1 tumors, thoracotomy approach, multilobar resections, thoracic wall resections and Rhesus negativity were more frequent in the ABT group. In multivariable analyses, female sex, preoperative anemia, multilobar resections, as well as serum alanine-aminotransferase levels, thrombocyte counts and Rhesus negativity were identified as independent predictors of ABT, being associated with OR (95% Confidence interval, p-value) of 2.44 (1.23-4.88, p = 0.0112), 18.16 (8.73-37.78, p < 0.0001), 5.79 (2.50-13.38, p < 0.0001), 3.98 (1.73-9.16, p = 0.0012), 2.04 (1.04-4.02, p = 0.0390) and 2.84 (1.23-6.59, p = 0.0150), respectively. CONCLUSIONS In patients undergoing major lung cancer resections, multiple independent risk factors for perioperative ABT apart from preoperative anemia and multilobar resections were identified. Assessment of these predictors might help to identify high risk patients preoperatively and to improve the strategies that reduce perioperative ABT.
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Affiliation(s)
- Mircea Gabriel Stoleriu
- Division of Thoracic Surgery Munich, Hospital of Ludwig-Maximilians-University Munich (LMU), Marchioninistr. 15, 81377, Munich, Germany. .,Department of Thoracic Surgery, Asklepios Pulmonary Hospital, Robert-Koch-Allee 2, 82131, Gauting, Germany. .,Comprehensive Pneumology Center (CPC), Member of the German Lung Research Center, Helmholtz Zentrum Muenchen, Institute for Lung Biology and Disease, 81377, Munich, Germany. .,Asklepios Lung Clinic Munich-GautingDivision of Thoracic Surgery Munich, Hospital of Ludwig-Maximilians-University Munich (LMU) and Asklepios Pulmonary Hospital, Robert-Koch-Allee 2, 82131, Gauting, Germany.
| | - Michael Gerckens
- grid.4567.00000 0004 0483 2525Comprehensive Pneumology Center (CPC), Member of the German Lung Research Center, Helmholtz Zentrum Muenchen, Institute for Lung Biology and Disease, 81377 Munich, Germany ,grid.5252.00000 0004 1936 973XDepartment of Internal Medicine V, Ludwig-Maximilians-University Munich (LMU), Marchioninistr. 15, 81377 Munich, Germany
| | - Julia Zimmermann
- grid.411095.80000 0004 0477 2585Division of Thoracic Surgery Munich, Hospital of Ludwig-Maximilians-University Munich (LMU), Marchioninistr. 15, 81377 Munich, Germany ,Department of Thoracic Surgery, Asklepios Pulmonary Hospital, Robert-Koch-Allee 2, 82131 Gauting, Germany
| | - Johannes Schön
- grid.411095.80000 0004 0477 2585Division of Thoracic Surgery Munich, Hospital of Ludwig-Maximilians-University Munich (LMU), Marchioninistr. 15, 81377 Munich, Germany
| | - Fuad Damirov
- grid.411095.80000 0004 0477 2585Division of Thoracic Surgery Munich, Hospital of Ludwig-Maximilians-University Munich (LMU), Marchioninistr. 15, 81377 Munich, Germany ,Department of Thoracic Surgery, Asklepios Pulmonary Hospital, Robert-Koch-Allee 2, 82131 Gauting, Germany
| | - Nicole Samm
- grid.411095.80000 0004 0477 2585Division of Thoracic Surgery Munich, Hospital of Ludwig-Maximilians-University Munich (LMU), Marchioninistr. 15, 81377 Munich, Germany ,Department of Thoracic Surgery, Asklepios Pulmonary Hospital, Robert-Koch-Allee 2, 82131 Gauting, Germany
| | - Julia Kovács
- grid.411095.80000 0004 0477 2585Division of Thoracic Surgery Munich, Hospital of Ludwig-Maximilians-University Munich (LMU), Marchioninistr. 15, 81377 Munich, Germany ,Department of Thoracic Surgery, Asklepios Pulmonary Hospital, Robert-Koch-Allee 2, 82131 Gauting, Germany
| | - Elvira Stacher-Priehse
- Department of Pathology, Asklepios Pulmonary Hospital, Robert-Koch-Allee 2, 82131 Gauting, Germany
| | - Christina Kellerer
- grid.411095.80000 0004 0477 2585Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Hospital of Ludwig-Maximilians-University Munich (LMU), Ziemssenstraße 1, 80336 Munich, Germany ,grid.6936.a0000000123222966School of Medicine, Institute of General Practice and Health Services Research, Technical University of Munich, Orleansstr. 47, 81667 Munich, Germany
| | - Rudolf A. Jörres
- grid.411095.80000 0004 0477 2585Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Hospital of Ludwig-Maximilians-University Munich (LMU), Ziemssenstraße 1, 80336 Munich, Germany
| | - Teresa Kauke
- grid.411095.80000 0004 0477 2585Division of Thoracic Surgery Munich, Hospital of Ludwig-Maximilians-University Munich (LMU), Marchioninistr. 15, 81377 Munich, Germany
| | - Christian Ketscher
- Department of Thoracic Surgery, Asklepios Pulmonary Hospital, Robert-Koch-Allee 2, 82131 Gauting, Germany
| | - Uwe Grützner
- grid.411095.80000 0004 0477 2585Division of Thoracic Surgery Munich, Hospital of Ludwig-Maximilians-University Munich (LMU), Marchioninistr. 15, 81377 Munich, Germany ,Department of Thoracic Surgery, Asklepios Pulmonary Hospital, Robert-Koch-Allee 2, 82131 Gauting, Germany
| | - Rudolf Hatz
- grid.411095.80000 0004 0477 2585Division of Thoracic Surgery Munich, Hospital of Ludwig-Maximilians-University Munich (LMU), Marchioninistr. 15, 81377 Munich, Germany ,Department of Thoracic Surgery, Asklepios Pulmonary Hospital, Robert-Koch-Allee 2, 82131 Gauting, Germany
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Wang X, Yang Y, Zhang J, Zang S. Development and validation of a prediction model for the prolonged length of stay in Chinese patients with lower extremity atherosclerotic disease: a retrospective study. BMJ Open 2023; 13:e069437. [PMID: 36759024 PMCID: PMC9923290 DOI: 10.1136/bmjopen-2022-069437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
OBJECTIVES This study aims to develop and internally validate a prediction model, which takes account of multivariable and comprehensive factors to predict the prolonged length of stay (LOS) in patients with lower extremity atherosclerotic disease (LEAD). DESIGN This is a retrospective study. SETTING China. PARTICIPANTS, PRIMARY AND SECONDARY OUTCOMES Data of 1694 patients with LEAD from a retrospective cohort study between January 2014 and November 2021 were analysed. We selected nine variables and created the prediction model using the least absolute shrinkage and selection operator (LASSO) regression model after dividing the dataset into training and test sets in a 7:3 ratio. Prediction model performance was evaluated by calibration, discrimination and Hosmer-Lemeshow test. The effectiveness of clinical utility was estimated using decision curve analysis. RESULTS LASSO regression analysis identified age, gender, systolic blood pressure, Fontaine classification, lesion site, surgery, C reactive protein, prothrombin time international normalised ratio and fibrinogen as significant predictors for predicting prolonged LOS in patients with LEAD. In the training set, the prediction model showed good discrimination using a 500-bootstrap analysis and good calibration with an area under the receiver operating characteristic of 0.750. The Hosmer-Lemeshow goodness of fit test for the training set had a p value of 0.354. The decision curve analysis showed that using the prediction model both in training and tests contributes to clinical value. CONCLUSION Our prediction model is a valuable tool using easily and routinely obtained clinical variables that could be used to predict prolonged LOS in patients with LEAD and help to better manage these patients in routine clinical practice.
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Affiliation(s)
- Xue Wang
- Department of Community Nursing, School of Nursing, China Medical University, Shenyang, Liaoning, China
| | - Yu Yang
- Department of Vascular Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jian Zhang
- Department of Vascular Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Shuang Zang
- Department of Community Nursing, School of Nursing, China Medical University, Shenyang, Liaoning, China
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11
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Lim K, Satkunasivam R, Nipper C, Xu J, Hsu E, Slawin JR, Roy T, Allenson KC, Kim MP, Barber SM, Ellis T, Akinsola O, Klaassen Z, Esnaola N, Ravi B, Jerath A, Wallis CJD. Association between isolated abnormal coagulation profile on transfusion following major surgery: A NSQIP analysis of individuals without bleeding disorders. Transfusion 2022; 62:2223-2234. [PMID: 36250486 DOI: 10.1111/trf.17146] [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: 08/04/2022] [Accepted: 08/28/2022] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Preoperative coagulation screening for patients without bleeding disorders remains controversial. The combinatorial risk of INR, aPTT, and platelet count (PLT) abnormalities leading to bleeding requiring transfusion is not known in these patients. We examined the association between abnormal coagulation profile and the risk of transfusion following common elective surgery in patients without bleeding disorders. STUDY DESIGN AND METHODS We utilized the National Surgical Quality Improvement Program (NSQIP) database from 2004 to 2018 to identify patients without a history of bleeding disorders undergoing common 23 major elective procedures across 10 specialties. Multivariable logistic regression was used to assess the association between coagulation profile and bleeding requiring packed red blood cell transfusion intra-/post-operatively. RESULTS Of the 672,075 patients meeting inclusion criteria, 53.7% presented with normal coagulation profile preoperatively. Overall, 12.2% (n = 82,368) received transfusion. In the setting of normal aPTT/PLT, both Equivocal INR of 1.1-1.5 (aOR 1.41, 95% CI 1.38-1.44) and Abnormal INR of >1.5 (aOR 1.81, 95% CI 1.71-1.93) were significantly associated with an increased risk of transfusion. Equivocal (60-70) and Abnormal (>70) aPTT with normal INR/PLT did not demonstrate a comparable risk of transfusion. We observed a synergistic effect of combinatorial lab abnormalities on the risk of transfusion when both Abnormal INR/aPTT and Low PLT of <100,000 were present (aOR 5.18, 95% CI 3.04-8.84), compared to the effect of Abnormal INR/aPTT and normal/elevated PLT (aOR 1.90, 95% CI 1.48-2.45). DISCUSSION The preoperative presence of abnormal findings in INR or PLT was significantly associated with the risk of bleeding requiring transfusion during intraoperative and postoperative periods.
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Affiliation(s)
- Kelvin Lim
- Department of Urology, Houston Methodist Hospital, Houston, Texas, USA
| | - Raj Satkunasivam
- Department of Urology, Houston Methodist Hospital, Houston, Texas, USA.,Center for Outcomes Research, Houston Methodist Hospital, Houston, Texas, USA
| | - Cole Nipper
- Texas A&M Health Science Center College of Medicine, Bryan, Texas, USA
| | - Jiaqiong Xu
- Center for Outcomes Research, Houston Methodist Hospital, Houston, Texas, USA
| | - Enshuo Hsu
- Center for Outcomes Research, Houston Methodist Hospital, Houston, Texas, USA
| | - Jeremy R Slawin
- Department of Urology, Houston Methodist Hospital, Houston, Texas, USA
| | - Trisha Roy
- Department of Vascular Surgery, Houston Methodist Hospital, Houston, Texas, USA
| | - Kelvin C Allenson
- Department of Surgical Oncology, Houston Methodist Hospital, Houston, Texas, USA
| | - Min P Kim
- Department of Thoracic Surgery, Houston Methodist Hospital, Houston, Texas, USA
| | - Sean M Barber
- Department of Spine Surgery, Houston Methodist Hospital, Houston, Texas, USA
| | - Taryn Ellis
- Department of Urology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Olutiwa Akinsola
- Department of Urology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Zachary Klaassen
- Division of Urology, Medical College of Georgia-Augusta University, Augusta, Georgia, USA
| | - Nestor Esnaola
- Department of Surgical Oncology, Houston Methodist Hospital, Houston, Texas, USA
| | - Bheeshma Ravi
- Department of Orthopaedic Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Ontario, Canada
| | - Angela Jerath
- Department of Anesthesiology, Sunnybrook Health Sciences Centre, University of Toronto, Ontario, Canada
| | - Christopher J D Wallis
- Department of Urology, University of Toronto, Toronto, Ontario, Canada.,Department of Urology, Mount Sinai Hospital, Toronto, Ontario, Canada
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12
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Arnold NR, Samuel LT, Karnuta JM, Acuña AJ, Kamath AF. The international normalised ratio predicts perioperative complications in revision total hip arthroplasty. Hip Int 2022; 32:661-671. [PMID: 33269618 DOI: 10.1177/1120700020973972] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Standard preoperative protocols in total joint arthroplasty utilise the international normalised ratio (INR) to determine patient coagulation profiles. However, the relevance of preoperative INR values in joint arthroplasty remains controversial. Therefore, we examined (1) the relationship between preoperative INR values and various outcome measures, including, but not limited to: surgical site complications, medical complications, bleeding, number of readmissions, and mortality. Additionally, we sought to determine (2) specific INR values associated with these complications and (3) cutoff INR levels which correlated with specific outcomes. We additionally applied these analyses to (4) examine the relationship between INR and length-of-stay (LOS). METHODS The American College of Surgeons National Surgical Quality Improvement Program database (ACS-NSQIP) was queried for rTHA procedures performed between 2006 and 2017. INR ranges were used to stratify cohorts: ⩽1.0, 1.0-⩽1.25, 1.25-⩽1.5, >1.5. INR values were determined using receiver operating characteristics (ROC) curves for each outcome of interest. Optimal cutoff INR values for each outcome were then obtained using univariate/multivariate models. 2012 patients who underwent rTHA met inclusion criteria. RESULTS Patients with progressively higher INR values had a significantly different risk of mortality within 30 days (p = 0.005), bleeding requiring transfusion (p < 0.001), sepsis (p = 0.002), stroke (p < 0.001), failure to wean from ventilator within 48 hours (p = 0.001), readmission (p = 0.01), and hospital length of stay (p < 0.001). Similar results were obtained when utilising optimal INR cutoff values. When correcting for other factors, the following poor outcomes were significantly associated with the respective INR cutoff values (Estimate, 95% CI, p-value): LOS >4 days (1.67, 1.34-2.08, p < 0.001), bleeding requiring transfusion (1.65, 1.30-2.09, p < 0.001), sepsis (2.15, 1.11-4.17, p = 0.022), and any infection (1.82, 1.01-3.29, p = 0.044). CONCLUSIONS Our analysis illustrates a direct relationship between specific preoperative INR levels and poor outcomes following rTHA, including increased LOS, transfusion requirements and infection. Therefore, current INR guideline targets may need to be re-examined when optimising patients for revision arthroplasty.
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Affiliation(s)
- Nicholas R Arnold
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Linsen T Samuel
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Jaret M Karnuta
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Alexander J Acuña
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Atul F Kamath
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, OH, USA
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13
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Madsen HJ, Henderson WG, Bronsert MR, Dyas AR, Colborn KL, Lambert-Kerzner A, Meguid RA. Associations Between Preoperative Risk, Postoperative Complications, and 30-Day Mortality. World J Surg 2022; 46:2365-2376. [PMID: 35778512 DOI: 10.1007/s00268-022-06638-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/12/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Comorbidities and postoperative complications increase mortality, making early recognition and management critical. It is useful to understand how they are associated with one another. This study assesses associations between comorbidities, complications, and mortality. METHODS We calculated associations between comorbidities, complications, and 30-day mortality using the 2012-2018 ACS-NSQIP database. We examined the association between mortality and number of complications which complications were most associated with mortality. RESULTS 5,777,108 patients were included. 30-day mortality was 0.95%. For most comorbidities or postoperative complications, patients with these had higher mortality than patients without. Having ≥ 1 complication increased mortality risk by 32.5-fold (6.5% vs. 0.2%). Mortality rate significantly increased with increasing number of complications, particularly after two or more complications. Bleeding and sepsis were associated with the most deaths. CONCLUSION The 30-day mortality rate was < 1% but was 32-fold higher in patients with complications and increased rapidly for patients with ≥ 2 complications. Bleeding and sepsis were the most prominent complications associated with mortality.
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Affiliation(s)
- Helen J Madsen
- Surgical Outcomes and Applied Research Program, Department of Surgery, University of Colorado School of Medicine, Aurora, CO, USA. .,Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado Denver, Anschutz Medical Campus, 12631 E. 17th Avenue, C-310, Room 6602, Aurora, CO, 80045, USA.
| | - William G Henderson
- Surgical Outcomes and Applied Research Program, Department of Surgery, University of Colorado School of Medicine, Aurora, CO, USA.,Adult and Child Center for Health Outcomes Research and Delivery Science, University of Colorado School of Medicine, Aurora, CO, USA.,Department of Biostatistics and Informatics, Colorado School of Public Health, Aurora, CO, USA
| | - Michael R Bronsert
- Surgical Outcomes and Applied Research Program, Department of Surgery, University of Colorado School of Medicine, Aurora, CO, USA.,Adult and Child Center for Health Outcomes Research and Delivery Science, University of Colorado School of Medicine, Aurora, CO, USA
| | - Adam R Dyas
- Surgical Outcomes and Applied Research Program, Department of Surgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Kathryn L Colborn
- Surgical Outcomes and Applied Research Program, Department of Surgery, University of Colorado School of Medicine, Aurora, CO, USA.,Department of Biostatistics and Informatics, Colorado School of Public Health, Aurora, CO, USA
| | - Anne Lambert-Kerzner
- Surgical Outcomes and Applied Research Program, Department of Surgery, University of Colorado School of Medicine, Aurora, CO, USA.,Adult and Child Center for Health Outcomes Research and Delivery Science, University of Colorado School of Medicine, Aurora, CO, USA
| | - Robert A Meguid
- Surgical Outcomes and Applied Research Program, Department of Surgery, University of Colorado School of Medicine, Aurora, CO, USA.,Adult and Child Center for Health Outcomes Research and Delivery Science, University of Colorado School of Medicine, Aurora, CO, USA
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14
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Kietaibl S, Ferrandis R, Godier A, Llau J, Lobo C, Macfarlane AJ, Schlimp CJ, Vandermeulen E, Volk T, von Heymann C, Wolmarans M, Afshari A. Regional anaesthesia in patients on antithrombotic drugs: Joint ESAIC/ESRA guidelines. Eur J Anaesthesiol 2022; 39:100-132. [PMID: 34980845 DOI: 10.1097/eja.0000000000001600] [Citation(s) in RCA: 75] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Bleeding is a potential complication after neuraxial and peripheral nerve blocks. The risk is increased in patients on antiplatelet and anticoagulant drugs. This joint guideline from the European Society of Anaesthesiology and Intensive Care and the European Society of Regional Anaesthesia aims to provide an evidence-based set of recommendations and suggestions on how to reduce the risk of antithrombotic drug-induced haematoma formation related to the practice of regional anaesthesia and analgesia. DESIGN A systematic literature search was performed, examining seven drug comparators and 10 types of clinical intervention with the outcome being peripheral and neuraxial haematoma. Grading of Recommendations, Assessment, Development and Evaluation (GRADE) was used for assessing the methodological quality of the included studies and for formulating recommendations. A Delphi process was used to prepare a clinical practice guideline. RESULTS Clinical studies were limited in number and quality and the certainty of evidence was assessed to be GRADE C throughout. Forty clinical practice statements were formulated. Using the Delphi-process, strong consensus (>90% agreement) was achieved in 57.5% of recommendations and consensus (75 to 90% agreement) in 42.5%. DISCUSSION Specific time intervals should be observed concerning the adminstration of antithrombotic drugs both prior to, and after, neuraxial procedures or those peripheral nerve blocks with higher bleeding risk (deep, noncompressible). These time intervals vary according to the type and dose of anticoagulant drugs, renal function and whether a traumatic puncture has occured. Drug measurements may be used to guide certain time intervals, whilst specific reversal for vitamin K antagonists and dabigatran may also influence these. Ultrasound guidance, drug combinations and bleeding risk scores do not modify the time intervals. In peripheral nerve blocks with low bleeding risk (superficial, compressible), these time intervals do not apply. CONCLUSION In patients taking antiplatelet or anticoagulant medications, practitioners must consider the bleeding risk both before and after nerve blockade and during insertion or removal of a catheter. Healthcare teams managing such patients must be aware of the risk and be competent in detecting and managing any possible haematomas.
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Affiliation(s)
- Sibylle Kietaibl
- From the Department of Anaesthesia and Intensive Care, Evangelical Hospital Vienna and Sigmund Freud Private University, Vienna, Austria (SK), Department of Anaesthesiology and Critical Care, Hospital Universitari i Politècnic La Fe, Valencia, Spain (RF), Department of Anaesthesiology and Critical Care, European Georges Pompidou Hospital, Assistance Publique-Hôpitaux de Paris (AG), INSERM UMRS-1140 Paris University, Paris, France (AG), Department of Anaesthesiology and Critical Care, Doctor Peset University Hospital (JL), Department of Surgery, Valencia University, Valencia, Spain (JL), Serviço de Anestesiologia Hospital das Forças Armadas, Pólo Porto, Porto, Portugal (CL), Department of Anaesthesia Pain Medicine and Critical Care, Glasgow Royal Infirmary, University of Glasgow, Glasgow, UK (AM), Department of Anaesthesia and Intensive Care Medicine, AUVA Trauma Centre Linz, Linz (CJS); Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Trauma Research Centre, Vienna, Austria (CJS), Department of Anaesthesia, University Hospitals Leuven. Catholic University of Leuven, Leuven, Belgium (EV), Department of Anaesthesiology, Intensive Care and Pain Therapy, Saarland University Medical Center and Saarland University Faculty of Medicine, Homburg/Saar (TV), Department of Anaesthesia, Intensive Care Medicine, Emergency Medicine and Pain Therapy, Vivantes Klinikum im Friedrichshain, Berlin, Germany (CVH), Department of Anaesthesia, Norfolk and Norwich University Hospital NHS Trust, Norwich, Norfolk, UK (MW), and Department of Pediatric and Obstetric Anesthesia, Juliane Marie Center, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark (AA)
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15
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Risk of venous thromboembolism in patients with elevated INR undergoing hepatectomy: an analysis of the American college of surgeons national surgical quality improvement program registry. HPB (Oxford) 2021; 23:1008-1015. [PMID: 33177005 DOI: 10.1016/j.hpb.2020.10.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 10/18/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Patients undergoing hepatectomy can have elevated INR and may have venous thromboembolism (VTE) prophylaxis withheld as a result. We sought to examine the association between preoperative INR elevation and VTE following hepatectomy. METHODS Hepatectomies captured in the American College of Surgeons National Surgical Quality Improvement Program registry between 2007 and 2016 were analyzed. Univariable and multivariable models examined the effect of incremental increases in preoperative INR on 30-day VTE, perioperative transfusion, serious morbidity, and mortality, adjusting for potential confounders. RESULTS We included 25,220 elective hepatectomies (62.4% partial lobectomies, 10.1% left hepatectomies, 18.6% right hepatectomies, 9.2% trisegmentectomies). The median age of the patients was 60 years and 49% were male. INR was elevated in 3089 patients (12.2%): 1.1-1.2 in 8.1%, 1.2-1.4 in 3.3%, and 1.4-2.0 in 0.9%. Incremental elevations in INR were independently associated with increasing risk for postoperative VTE [odds ratio (OR) 1.15, 95% confidence intervals 1.01-1.31], perioperative transfusion [OR 1.35 (1.28-1.43)], serious morbidity [OR 1.35 (1.28-1.43)], and mortality [OR 1.76 (1.56-1.98)]. CONCLUSION Elevation in preoperative INR was counter-intuitively associated with increased risk of both VTE and perioperative transfusion following hepatectomy. The role of perioperative thromboprophylaxis warrants further investigation to determine optimal care in patients with elevated preoperative INR.
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16
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Churchill JL, Samuel LT, Karnuta JM, Acuña AJ, Kamath AF. The Association of International Normalized Ratio with Postoperative Complications in Revision Total Knee Arthroplasty. J Knee Surg 2021; 34:721-729. [PMID: 31698497 DOI: 10.1055/s-0039-1700841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The purpose of this study was to examine the relationship between elevated preoperative international normalized ratio (INR) and (1) mortality, (2) postoperative bleeding, and (3) other postoperative complications in a national cohort of patients who underwent revision total knee arthroplasty (rTKA). The American College of Surgeons National Surgical Quality Improvement Program was queried for rTKA procedures conducted between 2006 and 2017. Cohorts were based on INR ranges: <1, 1 < INR ≤ 1.25, 1.25 < INR ≤ 1.5, and >1.5. Univariate/multivariate statistics were calculated to analyze associations between INR value and designated covariates. These statistics were additionally applied to optimal cutoff values of INR calculated using a receiver operating characteristics curve. The final cohort consisted of 1,676 patients. Progressively higher INR values were associated with an increased risk of mortality within 30 days (p < 0.006), bleeding requiring transfusion (p < 0.001), sepsis (p < 0.001), return to the operating room (Odds Ratio [OR], p = 0.011), reintubation (p < 0.001), pneumonia (p < 0.001), failure to wean from mechanical ventilation ≤48 hours (p < 0.001), acute renal failure (p = 0.001), and hospital length of stay (LOS). Statistically significant associations were similarly seen when calculated optimal INR values were used. Optimal INR turn point was found to be associated with a significant increased risk of long LOS (optimal INR = 1.03, OR: 1.7, 95% confidence interval [CI]: 1.33-2.18; p < 0.001) and a significant decreased risk of bleeding requiring transfusion (INR = 1.005, OR: 0.732, 95% CI: 0.681-0.786; p < 0.001). High preoperative INR values were independently and significantly associated with an increased risk of multiple postoperative complications. Current guidelines for INR <1.5 should be reassessed for patients undergoing rTKA.
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Affiliation(s)
- Jessica L Churchill
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Linsen T Samuel
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - J M Karnuta
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Alexander J Acuña
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Atul F Kamath
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
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17
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Preoperative Platelet and International Normalized Ratio Thresholds and Risk of Complications After Primary Hip Fracture Surgery. J Am Acad Orthop Surg 2021; 29:e396-e403. [PMID: 32796366 DOI: 10.5435/jaaos-d-19-00793] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 07/14/2020] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND A paucity of data exists on safe platelet and international normalized ratio (INR) thresholds for hip fracture surgery. Recent work has called into question the safety of preoperative INRs < 1.5 for total knee arthroplasty, and optimal platelet thresholds are unknown. The purpose of this study was to identify the risk of 30-day postoperative morbidity and mortality in patients with thrombocytopenia or elevated INRs undergoing hip fracture surgery. METHODS The National Surgical Quality Improvement Program database was queried for patients undergoing surgical treatment of a native hip fracture from 2012 to 2017 (N = 86,850). Patient demographic, laboratory, and complication data were collected. Patients with preoperative platelet counts or INRs within one day of surgery were included for analysis. Preoperative platelet counts and INRs were divided into four groups (<50 k/μL, ≥50 k to 100 k/μL, ≥100 k to 150 k/μL, ≥150 k/μL, and ≤1.0, >1.0 to 1.5, >1.5 to 2.0, and >2.0, respectively). Multivariable logistic regressions were used to assess the independent association between platelet count and INR on bleeding complications requiring transfusion, wound complications, reoperations, readmissions, and deaths. RESULTS A total of 72,306 and 56,027 patients were included for analysis of preoperative platelet and INR levels, respectively. In reference to platelet levels ≥150 k/μL, a notably increased risk of bleeding events was observed for patients with platelet counts ≥100 k to 150 k/μL (odds ratio [OR] 1.21, 95% confidence interval 1.15 to 1.27), ≥50 to 100 k/μL (OR 1.85, 1.69 to 2.03), and <50 k/μL (OR 1.60, 1.25 to 2.04). Decreasing platelet counts were associated with a stepwise increased risk of mortality from OR 1.12 (1.02 to 1.22) for platelet counts ≥100 k to 150 k/μL to OR 1.63 (1.41 to 1.90) and OR 1.59 (1.06 to 2.39) for platelet counts ≥50 k to 100 k/μL and <50 k/μL, respectively. Elevated INR was associated with an increased risk of reoperations, readmissions, and death (P < 0.001 for all), with largest effect sizes observed starting at INRs >1.5. DISCUSSION The results of this study suggest that preoperative platelet thresholds of <100,000/μL and INR thresholds of 1.5 serve as an important risk factor for complications after hip fracture surgery. Future work is warranted to determine whether preoperative platelet transfusions and/or INR reversal will improve outcomes for these patients. LEVEL OF EVIDENCE Prognostic Level III.
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Investigating the International Normalized Ratio Thresholds for Complication in Shoulder Arthroplasty. J Am Acad Orthop Surg 2021; 29:131-137. [PMID: 33492016 DOI: 10.5435/jaaos-d-20-00280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/21/2020] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND In patients on warfarin anticoagulation therapy, elective shoulder arthroplasty surgeons must carefully balance bleeding and embolic risks. Currently, an international normalized ratio (INR) threshold of 1.5 is supported in the setting of elective surgery. However, no previous study has investigated the optimal preoperative INR target specifically in shoulder arthroplasty. The purpose of this study was to evaluate the association of preoperative INR with rates of transfusion, complication, and readmission/revision surgery in shoulder arthroplasty. METHODS Patients who underwent elective shoulder arthroplasty were identified in a national database. The primary outcome of interest was the risk for all-cause complication at 30 days postoperatively. Major and minor complication, revision surgery, and readmission rates were also investigated. RESULTS From 2006 to 2016, 1,014 procedures were identified who had undergone elective shoulder arthroplasty with a perioperative INR lab result within 24 hours of surgery. In our cohort, 550 patients (54.2%) were women, with an average age of 71.0 ± 9.8 years. After controlling for confounders, patients with a preoperative INR > 1.5 were 18.9 times as likely to have a major complication as those with a preoperative INR ≤ 1.0 (P = 0.003). Patients with an INR of 1.25 < INR ≤ 1.5 did not have a statistically significant risk of minor or major complication in comparison with those with an INR ≤ 1.0 (P = 0.23, P = 0.67). DISCUSSION Although recent hip and knee arthroplasty literature has found that an INR < 1.25 may be an optimal preoperative INR goal, our results did not find an increased risk for bleeding and complication with an INR ≤ 1.5 for shoulder arthroplasty. These results support current guidelines recommending a preoperative INR ≤ 1.5 for shoulder arthroplasty.
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Rudasill SE, Liu J, Kamath AF. Revisiting the International Normalized Ratio Threshold for Bleeding Risk and Mortality in Primary Total Hip Arthroplasty: A National Surgical Quality Improvement Program Analysis of 17,567 Patients. J Bone Joint Surg Am 2020; 102:52-59. [PMID: 31609891 DOI: 10.2106/jbjs.19.00160] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Efforts to identify preoperative risk factors for primary total hip arthroplasty have amplified with its increasing incidence. The international normalized ratio (INR) is 1 measure that may influence postoperative outcomes. This study of a national database assessed whether there exists an association between preoperative INR and postoperative bleeding and mortality among patients who underwent primary total hip arthroplasty. METHODS We retrospectively analyzed 17,567 adult patients who underwent primary total hip arthroplasty in the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) between 2005 and 2016. Patients were stratified by preoperative INR into 4 groups: INR <1.0, 1.0 to <1.25, 1.25 to <1.5, and ≥1.5. Bleeding necessitating transfusion was the primary outcome, and secondary outcomes included mortality, infection, and readmission. Multivariable logistic regressions controlled for baseline differences. RESULTS Among the patients who underwent total hip arthroplasty, 20.5% had INR <1.0, 73.6% had INR 1.0 to <1.25, 4.2% had INR 1.25 to <1.5, and 1.8% had INR ≥1.5. Mortality increased incrementally from 0.3% for INR <1.0 to 4.9% for INR ≥1.5 (p < 0.001), and bleeding risk increased from 13.2% for INR <1.0 to 29.3% for INR ≥1.5 (p < 0.001). After adjustment, bleeding risk was increased for INR 1.25 to <1.5 (odds ratio [OR], 1.55 [95% confidence interval (CI), 1.26 to 1.92]) and INR ≥1.5 (OR, 1.55 [95% CI, 1.15 to 2.08]) compared with INR <1.0. The only group associated with increased mortality was INR ≥1.5 (OR, 2.69 [95% CI, 1.07 to 6.76]). The length of stay significantly increased with increasing INR, from 3.6 to 6.3 days (p < 0.001). CONCLUSIONS This study found a significant, independent effect between increased preoperative INR and increased bleeding and mortality. Bleeding risk becomes evident at INR ≥1.25, and those patients with INR ≥1.5 are at significantly increased risk of mortality. LEVEL OF EVIDENCE Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Sarah E Rudasill
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Jiabin Liu
- Department of Anesthesiology, Hospital for Special Surgery, New York, NY
| | - Atul F Kamath
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
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Rudasill SE, Dipardo B, Sanaiha Y, Mardock AL, Cale M, Antonios JW, Benharash P. International Normalized Ratio (INR) is Comparable to MELD in Predicting Mortality after Cholecystectomy. Am Surg 2019. [DOI: 10.1177/000313481908501024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Guidelines suggest targeting a preoperative international normalized ratio (INR) < 1.5. We examined and compared the predictive value of INR relative to the Model for End-Stage Liver Disease (MELD). We reviewed the American College of Surgeons NSQIP from 2005 to 2016 for adult patients undergoing open or laparoscopic cholecystectomy. Patients with a preoperative INR were stratified into groups: ≤1, >1 to ≤1.5, >1.5 to ≤2, and >2. Thirty day postoperative mortality was the primary outcome. Multivariable logistic regressions controlled for baseline differences. Of 58,177 cholecystectomy patients, 15.2 per cent had INR ≤ 1,80.4 per cent had INR > 1 to ≤1.5,3.7 per cent had INR > 1.5 to ≤2, and 0.7 per cent had INR > 2. Patients with INR > 2 were older and more likely to have diabetes and hypertension ( P < 0.001). Multivariable regression demonstrated a stepwise increase in mortality for INR > 1 to ≤1.5 (odds ratio (OR) = 1.50 [1.10–2.05]), INR > 1.5 to ≤2 (OR = 2.96 [1.97–4.45]), and INR > 2 (OR = 3.21 [1.64–6.31]) relative to INR ≤ 1. C-statistic for INR (0.910) and MELD (0.906) models indicated a similar value in predicting mortality. INR groups also faced an incremental, increased risk of bleeding. Although unable to track preoperative correction of INR, this analysis identifies that INR remains an excellent predictor of postoperative mortality and bleeding after both open and laparoscopic cholecystectomies and is comparable to MELD.
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Affiliation(s)
- Sarah E. Rudasill
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Benjamin Dipardo
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Yas Sanaiha
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Alexandra L. Mardock
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Mario Cale
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - James W. Antonios
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Peyman Benharash
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
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Rudasill SE, Liu J, Kamath AF. Revisiting the International Normalized Ratio (INR) Threshold for Complications in Primary Total Knee Arthroplasty: An Analysis of 21,239 Cases. J Bone Joint Surg Am 2019; 101:514-522. [PMID: 30893232 DOI: 10.2106/jbjs.18.00771] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Consensus guidelines recommend use of the international normalized ratio (INR) to predict the risk of perioperative bleeding in orthopaedic surgery. However, current recommendations for targeting an INR of <1.5 are based on studies across all surgical disciplines. This study examined the impact of the INR on perioperative bleeding, mortality, postoperative infections, length of hospital stay (LOS), and readmissions following primary total knee arthroplasty (TKA). METHODS We retrospectively reviewed the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) database for adult patients who underwent primary TKA from 2010 to 2016. Patients for whom an INR had been recorded within 1 day before the surgery were stratified and analyzed for perioperative bleeding, mortality within 30 days, deep wound and superficial infections, LOS, and readmissions. Multivariable regressions were utilized to adjust for differences in demographics and comorbidities among INR groups. RESULTS Of 21,239 patients, 57.2% had an INR of ≤1.0; 38.1% had an INR of >1.0 to 1.25, 3.9% had an INR of >1.25 to 1.5, and 0.8% had an INR of >1.5. After adjustment, a progressively increased bleeding risk was found with an INR of >1.0 to 1.25 (odds ratio [OR] = 1.19, 95% confidence interval [CI] = 1.07 to 1.31, p = 0.001), an INR of >1.25 to 1.5 (OR = 1.29, 95% CI = 1.02 to 1.63, p = 0.033), and an INR of >1.5 (OR = 2.02, 95% CI = 1.29 to 3.14, p = 0.002) relative to an INR of ≤1.0. Patients with an INR of >1.5 were at increased risk for infection (OR = 5.34, 95% CI = 2.45 to 11.68, p < 0.001), but only patients with an INR of >1.25 to 1.5 were at increased risk for mortality (OR = 3.37, 95% CI = 1.31 to 8.63, p = 0.011) relative to those with an INR of ≤1.0. Overall and TKA-related readmission rates and LOS were significantly increased for patients with an INR of >1.25 to 1.5 or an INR of >1.5. CONCLUSIONS An INR of >1.25 to 1.5 was associated with increased bleeding, infection, and mortality rates following TKA, and an INR of >1.5 was associated with increased bleeding and infection rates. Current INR target recommendations in consensus guidelines should be reconsidered. LEVEL OF EVIDENCE Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Sarah E Rudasill
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Jiabin Liu
- Department of Anesthesiology, Hospital for Special Surgery, New York, NY
| | - Atul F Kamath
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania.,Orthopaedic and Rheumatologic Institute, Cleveland Clinic, Cleveland, Ohio
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Castle J, Mazmudar A, Bentrem D. Preoperative coagulation abnormalities as a risk factor for adverse events after pancreas surgery. J Surg Oncol 2018; 117:1305-1311. [PMID: 29355979 DOI: 10.1002/jso.24972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 11/28/2017] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To determine whether elevated INR or PTT values predicted 30-day postoperative adverse events following elective pancreatectomy. METHODS The American college of surgeons national surgical quality improvement program (ACS-NSQIP) database was used to identify 14 747 patients undergoing elective pancreatectomy from 2005 to 2013. The association of elevated INR or PTT with 30-day postoperative outcomes of morbidity and mortality was examined using multivariate logistic regression analysis. RESULTS The overall 30-day mortality rate increased from 1.8% to 3.3% from the control to the high INR or PTT group (P = <0.001). An elevated INR/PTT increased the odds for bleeding requiring transfusion, superficial SSI, sepsis, unplanned intubation or >48 h on a ventilator, cardiac arrest or myocardial infarction, acute renal failure, return to the OR, and prolonged length of stay. With the exception of superficial SSI, multivariate logistic regression models revealed that these same events remained statistically significant after controlling for potential confounders. CONCLUSION Prolonged bleeding times (high INR/PTT) is associated with increased mortality and adverse outcomes after pancreas surgery. A patient's coagulation profile may serve as a risk stratification tool to identify higher risk patients that require more resources.
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Affiliation(s)
- Joshua Castle
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Aditya Mazmudar
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - David Bentrem
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
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