scholarly journals Partial pressure of oxygen level at admission as a predictor of postoperative pneumonia after hip fracture surgery in a geriatric population: a retrospective cohort study

BMJ Open ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. e048272
Author(s):  
Yahong Ji ◽  
Xiaoli Li ◽  
Yakang Wang ◽  
Li Cheng ◽  
Hua Tian ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hip Fracture ◽  
Retrospective Cohort ◽  
Operating Characteristic ◽  
Validation Cohort ◽  
Partial Pressure Of Oxygen ◽  
Geriatric Population ◽  
Training Cohort ◽  
Hip Fracture Surgery ◽  
Fracture Surgery

ObjectiveTo identify whether the partial pressure of oxygen in arterial blood (PaO2) level at admission is an independent risk factor as a prognostic biomarker to predict postoperative pneumonia (POP) in the geriatric population who have undergone hip fracture surgical repair at our hospital.DesignA retrospective cohort study.SettingThis is a retrospective chart review of POP after hip fracture surgery in China.ParticipantsIn training cohort, patients aged ≥65 years who had hip fracture surgery between 1 January 2018 and 30 November 2019. In the validation cohort, a series of patients who underwent hip fracture surgery between 1 January 2020 and 28 February 2020.InterventionsReceiver operating characteristic (ROC) analysis was used to obtain the area under the ROC curve (AUC) and cut-off values of PaO2 to predict POP. A binomial logistic regression model was used to identify potential risk factors for POP by analysing demographic distribution factors, laboratory results, preoperative comorbidities and surgical factors. Then the regression model was validated using an independent cohort.ResultsIn the training cohort, ROC curves were generated to compare the predictive performance of PaO2 for the occurrence of POP, and the area under the receiver operating characteristic curve (AUC) was 0.653 (95% CI 0.577 to 0.729, p<0.0001), with sensitivity and specificity values of 60.0% and 63.8%, respectively. The cut-off value of the PaO2 for POP was 72.5 mm Hg. Binary logistic regression analysis revealed that hypoxaemia (PaO2 <72.5 mm Hg) at hospital admission (OR=3.000, 95% CI 1.629 to 5.528; p<0.0001) was independent risk factors associated with POP after hip fracture surgery. In the validation cohort, PaO2 had a predictive effect for POP (AUC 0.71, 95% CI 0.541 to 0.891).ConclusionsThe current study revealed that the PaO2 level at hospital admission is a simple and widely available biomarker predictor of POP after hip fracture surgery in elderly patients.

scholarly journals Risk factors for extended length of stay following hip fracture surgery: A retrospective cohort study of patients aged 90 years and over in China

2019 ◽  
Author(s):  
Ling Lan ◽  
Li-jian Pei ◽  
Feifei Zhai ◽  
Yuelun Zhang ◽  
Jun Jing ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hip Fracture ◽  
Retrospective Cohort ◽  
Binary Logistic Regression ◽  
Postoperative Pneumonia ◽  
Binary Logistic Regression Analysis ◽  
Hip Fracture Surgery ◽  
Extended Length ◽  
Potential Risk Factors ◽  
Fracture Surgery

Abstract Background Hip fractures are typical fractures in geriatric patients and are associated with a high risk of postoperative complications and extended length of stay (LOS) compared with other osteoporotic fractures, particularly among patients over age 90. We aimed to identify the risk factors for extended LOS (more than 14 days) in patients older than 90 years. Methods A single-centre retrospective cohort study was performed in 50 patients (over age 90) who experienced hip fracture between June 1, 2013, and August 31, 2017. Their medical records were retrospectively reviewed from the hospital’s electronic database. The baseline characteristics of the patients, intraoperative data and postoperative complications were collected for the assessment of potential risk factors. Univariate analysis and multivariate binary logistic regression analysis were performed to determine potential risk factors for extended LOS. Results The age of the patients in the cohort ranged from 90 to 101 years, and the analysis demonstrated that 70% (n = 35) of the patients experienced a complicated course of treatment with an in-hospital mortality rate of 4% (n = 2). The most common complication was the occurrence of postoperative pneumonia (38%). The median duration of hospital stay was 18 (IQR 11, 21) days. Multivariate binary logistic regression analysis showed that a LOS of more than 14 days was significantly associated with a lower mean diastolic blood pressure during surgery [odds ratio (OR) =0.86, 95% confidence interval (CI)=0.76-0.98, P = 0.018] and the occurrence of postoperative pneumonia (OR=8.95, 95% CI=1.45-55.3, P = 0.018). The occurrence of postoperative pneumonia was significantly associated with the neutrophil-to-lymphocyte ratio (NLR) at admission (D0) [odds ratio (OR) =1.20, 95% confidence interval (CI)=1.02-1.41, P = 0.029]. Neither the LOS nor postoperative pneumonia was found to be associated with the anaesthesia technique. Conclusions A lower mean diastolic blood pressure during surgery and the occurrence of postoperative pneumonia may extend the LOS in patients aged 90 years and over who undergo hip fracture surgery. The use of regional anaesthesia was not associated with a shorter LOS.

scholarly journals Preoperative risk factors for postoperative blood transfusion after hip fracture surgery: establishment of a nomogram

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Fu Cheng Bian ◽  
Xiao Kang Cheng ◽  
Yong Sheng An
Keyword(s):  
Risk Factors ◽  
Regression Analysis ◽  
Hip Fracture ◽  
Blood Transfusion ◽  
Multivariate Logistic Regression ◽  
Preoperative Risk ◽  
Hip Fracture Surgery ◽  
Preoperative Risk Factors ◽  
Independent Risk Factors ◽  
Fracture Surgery

Abstract Background This study aimed to explore the preoperative risk factors related to blood transfusion after hip fracture operations and to establish a nomogram prediction model. The application of this model will likely reduce unnecessary transfusions and avoid wasting blood products. Methods This was a retrospective analysis of all patients undergoing hip fracture surgery from January 2013 to January 2020. Univariate and multivariate logistic regression analyses were used to evaluate the association between preoperative risk factors and blood transfusion after hip fracture operations. Finally, the risk factors obtained from the multivariate regression analysis were used to establish the nomogram model. The validation of the nomogram was assessed by the concordance index (C-index), the receiver operating characteristic (ROC) curve, decision curve analysis (DCA), and calibration curves. Results A total of 820 patients were included in the present study for evaluation. Multivariate logistic regression analysis demonstrated that low preoperative hemoglobin (Hb), general anesthesia (GA), non-use of tranexamic acid (TXA), and older age were independent risk factors for blood transfusion after hip fracture operation. The C-index of this model was 0.86 (95% CI, 0.83–0.89). Internal validation proved the nomogram model’s adequacy and accuracy, and the results showed that the predicted value agreed well with the actual values. Conclusions A nomogram model was developed based on independent risk factors for blood transfusion after hip fracture surgery. Preoperative intervention can effectively reduce the incidence of blood transfusion after hip fracture operations.

scholarly journals Risk factors associated with outcomes of hip fracture surgery in elderly patients

2015 ◽  
Vol 68 (6) ◽  
pp. 561 ◽  
Author(s):  
Byung Hoon Kim ◽  
Sangseok Lee ◽  
Byunghoon Yoo ◽  
Woo Yong Lee ◽  
Yunhee Lim ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hip Fracture ◽  
Elderly Patients ◽  
Factors Associated ◽  
Hip Fracture Surgery ◽  
Fracture Surgery ◽  
Surgery In Elderly

scholarly journals Predictors of Acute Kidney Injury After Hip Fracture in Older Adults

2020 ◽  
Vol 11 ◽  
pp. 215145932092008 ◽  
Author(s):  
Julie Braüner Christensen ◽  
Martin Aasbrenn ◽  
Luana Sandoval Castillo ◽  
Anette Ekmann ◽  
Thomas Giver Jensen ◽  
...  
Keyword(s):  
Risk Factors ◽  
Acute Kidney Injury ◽  
Hip Fracture ◽  
Blood Transfusion ◽  
Multivariable Analysis ◽  
Kidney Injury ◽  
C Reactive Protein ◽  
Hip Fracture Surgery ◽  
Reactive Protein ◽  
Fracture Surgery

Introduction: This study aimed to investigate the prevalence of acute kidney injury (AKI) following hip fracture surgery in geriatric patients and to identify predictors for development of AKI with a focus on possible preventable risk factors. Methods: In this retrospective cohort study, we reviewed electronic medical records of all patients above 65 years of age who underwent hip fracture surgery at Copenhagen University Hospital, Bispebjerg, Denmark, in 2018. Acute kidney injury was assessed according to the Kidney Disease Improving Global Outcomes guidelines. Multivariate logistic regression analyses were used to identify independent risk factors for AKI. Results: Postoperative AKI developed in 28.4% of the included patients (85/299). Acute kidney injury was associated with increased length of admission (11.3 vs 8.7 days, P < .001) and 30-day mortality (18/85 vs 16/214, P = .001). In multivariable analysis, higher age (odds ratio [OR]: 1.05, 95% confidence interval [CI]: 1.01-1.08, P = .004), heart disease (OR: 1.78, 95% CI: 1.01-3.11, P = .045), and postoperative blood transfusion (OR: 1.84, 95% CI: 1.01-3.36, P = .048) were associated with AKI. Moreover, a higher postoperative C-reactive protein (199.0 ± 99.9 in patients with AKI, 161.3 ± 75.2 in patients without AKI) and lower postoperative diastolic blood pressure were observed in patients developing AKI. Discussion and Conclusion: Acute kidney injury was common following hip fracture surgery and associated with longer admissions and increased mortality. Patients developing AKI were older and showed several postoperative similarities, including higher C-reactive protein, lower postoperative diastolic pressure, and the need for blood transfusion.

scholarly journals Risk factors of morbidity and mortality following hip fracture surgery

2013 ◽  
Vol 64 (6) ◽  
pp. 505 ◽  
Author(s):  
Seung Dong Kim ◽  
Sang Jin Park ◽  
Deok Hee Lee ◽  
Dae Lim Jee
Keyword(s):  
Risk Factors ◽  
Hip Fracture ◽  
Morbidity And Mortality ◽  
Hip Fracture Surgery ◽  
Fracture Surgery

scholarly journals Beta-Blocker Therapy Is Associated With Increased 1-Year Survival After Hip Fracture Surgery: A Retrospective Cohort Study

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Ahmad Mohammad Ismail ◽  
Rebecka Ahl ◽  
Maximilian Peter Forssten ◽  
Yang Cao ◽  
Per Wretenberg ◽  
...  
Keyword(s):  
Cohort Study ◽  
Hip Fracture ◽  
Beta Blocker ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Blocker Therapy ◽  
Beta Blocker Therapy ◽  
Hip Fracture Surgery ◽  
Fracture Surgery
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