The objective of this study was to evaluate the utility and sensitivity of routine pelvic radiographs (PXR) in the initial evaluation of blunt trauma patients. A retrospective review was performed. One hundred seventy-four patients with a pelvic fracture who had computed tomography (CT) and PXR were included (average age, 36.1; average Injury Severity Score, 16.3). Nine (5%) patients died. Five hundred twenty-one fractures were identified on CT. One hundred sixteen (22%) of these fractures were missed by PXR. Eighty-eight (51%) patients were underdiagnosed by PXR alone. The most common fractures missed by PXR were sacral and iliac fractures. Eight patients required angiograms, with four undergoing therapeutic pelvic embolization. Forty-seven (27%) patients were hypotensive or required a transfusion in the emergency department. These patients were more likely to require an angiogram (17% vs 0%, P < 0.0001) and were more likely to require embolization (9% vs 0%, P < 0.001). This study demonstrates that CT scan is highly sensitive in identifying and classifying pelvic fractures. PXR has a sensitivity of only 78 per cent for identification of pelvic fractures in the acute trauma patient. In hemodynamically stable patients who are going to undergo diagnostic CT scan, PXR is of little value. The greatest use of PXR may be as a screening tool in hemodynamically unstable patients and/or those that require transfusion to allow for early notification of the interventional radiology team.
There is a subset of trauma patients who are hypotensive in the field but normotensive on arrival to the emergency department (ED). Our objective was to evaluate the presence, type, and severity of injuries in these patients. Data were retrospectively reviewed from patients treated at a level 1 trauma center over 1 year. Hypotension was defined as systolic blood pressure (SBP) less than 90 mm Hg. Forty-seven patients were included. The mechanism of injury was blunt in 37 patients and penetrating in 10. The average field SBP was 76 ± 11 mm Hg. The average SBP on arrival to the ED was 120 ± 19 mm Hg. The average injury severity score (ISS) was 16.3 ± 10.3 (range, 1–43). Twenty-four patients (51%) had significant injury (ISS ≥ 16). Nine patients (19%) had critical injury (ISS ≥ 25). Twenty-six patients (55%) required surgery, and 43 (91%) required ICU admission. Common injury sites included the head and neck (57%), thorax (44%), pelvis and extremities (40%), and abdomen (34%). Overall mortality was 10 per cent (n = 5). All patients that died had significant head and neck injuries (AIS ≥ 3). Field hypotension was a significant marker for potential serious internal injury requiring prompt diagnostic workup.
The purpose of this study was to assess the incidence and clinical significance of famotidine-associated thrombocytopenia in the trauma patient population. A retrospective cohort study was performed between January 2003 and May 2009 comparing the consecutive platelet counts of trauma patients treated with intravenous famotidine with a similar group of trauma patients who were not. Patients were excluded if: 1) daily platelets counts for 48 hours were not drawn; 2) if platelet counts were less than 150 X 103/μL on admission or before initiation of famotidine treatment; 3) if patients received heparin or enoxaparin before or during the study period; and 4) if patients were taking famotidine before admission. Platelet counts were then recorded for the day of admission, the day famotidine was started if not on admission, and 24 hours and 48 hours during treatment. Seventy-two of 181 (39.8%) patients treated with famotidine developed thrombocytopenia compared with 23 of 126 (18.3%) untreated patients ( P < 0.001). Patients who developed thrombocytopenia were also more likely to have a longer length of stay and higher Injury Severity Scores. Intravenous famotidine therapy was the only variable found to be statistically significant after both univariate and multivariate analysis ( P < 0.001 and P = 0.003, respectively). Thrombocytopenia became clinically significant in eight of 181 (4.4%) famotidine-treated patients or 11.1 per cent of those who developed thrombocytopenia. Given these findings, we recommend the use of alternative medications for peptic ulcer prophylaxis in the critically ill trauma patient, especially those who are coagulopathic.
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