AI Article Synopsis
- Respiratory complications, particularly pulmonary thromboembolic disease (PTE) and fat emboli, frequently occur after arthroplasty, prompting a scintigraphic study to investigate their prevalence.
- A tomographic lung study was performed within 24 hours post-surgery, excluding patients with a history of PTE, using 99mTc-macroaggregated albumin for evaluation alongside arterial blood gas analysis.
- Among 40 patients studied, PTE was found in 66% of those evaluated, with significant differences in oxygen gradients observed, and prophylactic low molecular weight heparin did not affect the incidence of early PTE.
Article Abstract
Introduction: Respiratory complications are common after arthroplasty, with pulmonary thromboembolic disease (PTE) and fat emboli being the most serious. A scintigraphic study was designed to assess the occurrence of both diseases. A prospective tomographic study of perfusion was performed within 24 h of arthroplasty. Details of the detection of fat embolism will be presented elsewhere.
Methods: Patients with previous PTE were excluded. Tomographic lung studies were acquired after 99mTc-macroaggregated albumin injection. Pre- and post-operative arterial blood gases (ABGs) and relevant chest radiography/computed tomography scans were obtained. ABGs were analysed as the difference in alveolar-arterial oxygen gradients, pre- and post-operatively (DA-a).
Results: Forty patients were studied (16F, 24M) with a mean age of 71 years (range 36-88 years). Of these, 16 were hip and 24 knee arthroplasties. PTE was detected in 25 of 38 (66%) patients evaluated. The value of DA-a was significantly different between patients with PTE and without PTE (P>0.05). Administration of prophylactic pre-operative low molecular weight heparin makes no difference to the early onset of PTE.
Conclusion: There is a high incidence of PTE immediately after arthroplasty.
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| http://dx.doi.org/10.1097/00006231-200111000-00011 | DOI Listing |
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