Artikel ; Online: Prediction of hematocrit decline and the impact of peri-operative fluid use in lumbar spinal fusion surgery.
2023 Band 33, Heft 1, Seite(n) 307–313
Abstract: Purpose: Peri-operative blood loss unaccounted for and post-operative hematocrit decline could have a significant impact on the outcome of elective spinal surgery patients. The study assesses the accuracy of predictive models of hematocrit decline and ... ...
| Abstract | Purpose: Peri-operative blood loss unaccounted for and post-operative hematocrit decline could have a significant impact on the outcome of elective spinal surgery patients. The study assesses the accuracy of predictive models of hematocrit decline and blood loss in spinal surgery and determines the impact of peri-operative fluid administration on hematocrit levels of patients undergoing first-time single level lumbar fusion surgery for degenerative spine disease and the trend thereof in the first 24 h post-operatively. Methods: Clinical and biochemical parameters were prospectively collected in patients undergoing single level lumbar spinal surgery. Predictive models were applied to assess their accuracy in intra-operative blood loss and post-operative hematocrit decline. Results: High correlation (0.98 Pearson correlation coefficient) occurred between calculated (predicted) and recorded hematocrit from hours 2 to 6 post-operatively. Predictive accuracy declined thereafter yet remained moderate. Patients received an average intra-operative fluid volume of 545.45 ml per hour (47% of estimated total blood volume). A significant hematocrit decline occurred post-induction (43.47-39.78%, p < 0.001) with total fluid volume received being the significant contributing variable (p < 0.001). Hypertensive patients were the only subgroup to drop below the safe hematocrit threshold of 30%. Conclusion: Iatrogenic hemodilution can accurately be predicted for the first six hours post-operatively, with high risk patients identifiable. Fluid therapy should be goal directed rather than generic, and good communication between the surgeon and anesthesiologist remains the cornerstone to manage physiological changes secondary to blood loss. Although helpful, predictive formulas are not universally applicable to all phenotypes. |
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| Mesh-Begriff(e) | Humans ; Spinal Fusion/adverse effects ; Hematocrit ; Spinal Diseases ; Blood Loss, Surgical/prevention & control ; Lumbar Vertebrae/surgery ; Retrospective Studies |
| Sprache | Englisch |
| Erscheinungsdatum | 2023-11-30 |
| Erscheinungsland | Germany |
| Dokumenttyp | Journal Article |
| ZDB-ID | 1115375-1 |
| ISSN | 1432-0932 ; 0940-6719 |
| ISSN (online) | 1432-0932 |
| ISSN | 0940-6719 |
| DOI | 10.1007/s00586-023-07977-x |
| Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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