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Preoperative anemia and hospitalization time are the independent factors of preoperative deep venous thromboembolism in Chinese elderly with hip fracture

Long Feng, Weixiu Yuan, Mingda Duan, Chaohai Jin, Longhe Xu, Zhipeng Xu, Ze-Guo Feng, Hong Zhang
DOI: 10.21203/rs.2.12382/v1

Abstract

Aim This study was designed to explore the prevalence condition and risk factors of preoperative deep venous thromboembolism (DVT) in Chinese elderly with hip fracture. Methods From January 1, 2012, to December 31, 2018, 273 elderly over 70 years old with elective hip surgery were collected from the electronic medical records. Collected Data included demographic characteristics, comorbidities, ASA classification, types of surgeries, types of anesthesia, operation time, fracture to operation time, perioperative blood transfusion, preoperative hemoglobin level, anemia, blood-gas analysis, cardiac function, electrocardiograph, lower limb venous ultrasound and hospitalization time. Results In all patients, 15 patients (5.6%) had venographic evidence of DVT in affected limbs before surgery. Three of all patients received an temporary inferior vena cave filter placement. Fracture to surgery time, preoperative hemoglobin level, anemia, pulmonary disease and hospitalization time were statistically different between DVT group and non-DVT group (P<0.05 for all). Moreover, preoperative anemia (OR: 0.144, 95%CI: 0.026-0.799, P=0.027) and hospitalization time (OR: 1.135; 95%CI: 1.023-1.259, P=0.017) were the two independent risk factors for preoperative DVT. Conclusion Preoperative anemia and hospitalization time were independent risk factors for venous DVT in Chinese elderly with hip fracture.

Keywords
anesthesia; deep vein thrombosis; hip fracture; hospitalization time; preoperative anemia

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Patients and methods

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Discussion

Conclusion

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Preprint: Please note that this article has not completed peer review.

Preoperative anemia and hospitalization time are the independent factors of preoperative deep venous thromboembolism in Chinese elderly with hip fracture

Long Feng, Weixiu Yuan, Mingda Duan, Chaohai Jin, Longhe Xu, Zhipeng Xu, Ze-Guo Feng, Hong Zhang

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Abstract

Aim This study was designed to explore the prevalence condition and risk factors of preoperative deep venous thromboembolism (DVT) in Chinese elderly with hip fracture. Methods From January 1, 2012, to December 31, 2018, 273 elderly over 70 years old with elective hip surgery were collected from the electronic medical records. Collected Data included demographic characteristics, comorbidities, ASA classification, types of surgeries, types of anesthesia, operation time, fracture to operation time, perioperative blood transfusion, preoperative hemoglobin level, anemia, blood-gas analysis, cardiac function, electrocardiograph, lower limb venous ultrasound and hospitalization time. Results In all patients, 15 patients (5.6%) had venographic evidence of DVT in affected limbs before surgery. Three of all patients received an temporary inferior vena cave filter placement. Fracture to surgery time, preoperative hemoglobin level, anemia, pulmonary disease and hospitalization time were statistically different between DVT group and non-DVT group (P<0.05 for all). Moreover, preoperative anemia (OR: 0.144, 95%CI: 0.026-0.799, P=0.027) and hospitalization time (OR: 1.135; 95%CI: 1.023-1.259, P=0.017) were the two independent risk factors for preoperative DVT. Conclusion Preoperative anemia and hospitalization time were independent risk factors for venous DVT in Chinese elderly with hip fracture.

Background

Patients and methods

Results

Discussion

Conclusion

Abbreviations

Declarations

References

Tables

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