Validity of visual inspection of diagnostic peritoneal lavage fluid.
| Autor: | Gow KW; Department of Surgery, St. Paul's Hospital, Vancouver, BC., Haley LP, Phang PT |
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| Jazyk: | angličtina |
| Zdroj: | Canadian journal of surgery. Journal canadien de chirurgie [Can J Surg] 1996 Apr; Vol. 39 (2), pp. 114-9. |
| Abstrakt: | Objective: To determine the positive and negative predictive values of visual inspection of peritoneal lavage fluid and the threshold concentration of erythrocytes for diagnosing significant hemoperitoneum by this method. Design: Nineteen residents in surgery and 21 staff surgeons were asked to inspect mock peritoneal lavage fluid and state whether they would proceed with urgent laparotomy. Main Results: The overall positive and negative predictive values for visual inspection were 52.0% and 98.9%, respectively. The threshold for diagnosing significant hemoperitoneum by visual inspection was between 10,000 and 20,000 erythrocytes/mL for most subjects. There were no significant differences between residents and staff surgeons. Conclusions: Visual inspection of peritoneal lavage fluid has good negative but poor positive predictive value, and the threshold for diagnosing significant hemoperitoneum by visual inspection is less than 100,000 erythrocytes/mL. Therefore, patients whose condition is stable and for whom visual inspection of lavage fluid indicates apparently significant hemoperitoneum should not undergo laparotomy without confirmation by laboratory testing. |
| Databáze: | MEDLINE |
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