Pulmonary fat embolism and related effects during femoral intramedullary surgery: An experimental study in dogs

Zhou,Feihu; Ji,Jun; Song,Qing; Peng,Zhiyong; Zhang,Guoqiang; Wang,Yan

doi:10.3892/etm.2013.1143

August 2013 Volume 6 Issue 2

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August 2013 Volume 6 Issue 2

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Article

Pulmonary fat embolism and related effects during femoral intramedullary surgery: An experimental study in dogs

Authors:
- Feihu Zhou
- Jun Ji
- Qing Song
- Zhiyong Peng
- Guoqiang Zhang
- Yan Wang
View Affiliations / Copyright

Affiliations: Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China, Department of Anesthesiology, Air Force General Hospital, Beijing 100142, P.R. China, The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA, Department of Orthopaedics, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
Pages: 469-474
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Published online on: June 5, 2013

https://doi.org/10.3892/etm.2013.1143
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Abstract

The aim of the present study was to develop an animal model of pulmonary fat embolism (PFE) caused by femoral intramedullary procedures, and to investigate the initial changes in the hemodynamics, cytokines and risk factors of PFE. Sixteen dogs were randomly divided into two groups: Group A (intramedullary reaming and bone cement injection, n=8) and Group B (surgical approach without opening the medullary cavity, n=8). The hemodynamics, arterial blood gases and relevant cytokines were evaluated, and the lungs were examined using Oil Red O staining. In the animals of Group A, the heart rate, central venous pressure, mean pulmonary arterial pressure, pulmonary capillary wedge pressure and extravascular lung water (EVLW) were increased compared with the baseline levels, while the mean arterial pressure was decreased immediately following the reaming and bone cement infusion (P<0.05). Furthermore, there was a significant reduction in the pH and the arterial oxygen tension (PaO2), and a significant increase in the arterial carbon dioxide tension (PaCO2; P<0.05 for all) following the bilateral intramedullary surgery. The EVLW was correlated with the PaO2 (P<0.001) and PaCO2 (P=0.046). Following surgery, there was a significant increase in tumor necrosis factor‑α (TNF‑α), interleukin‑1β (IL‑1β) and IL‑6 levels in Group A (P<0.05). However, there were no significant changes in these parameters in Group B. The parameters tested, with the exception of pH, were significantly different in Group A compared with those in Group B (P<0.05) following the bilateral intramedullary surgery. Oil Red O staining was positive for all animals in Group A and negative for those in Group B. Femoral intramedullary surgery may induce PFE and subsequently affect hemodynamics and arterial blood gases. EVLW was correlated with the PaO2 (P<0.001) and the PaCO2 (P=0.046). These results demonstrated that EVLW and cytokines may serve as predictors of the development of fat embolism syndrome (FES).

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Pulmonary fat embolism and related effects during femoral intramedullary surgery: An experimental study in dogs

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