51V-NMR and (51)T(1)(T) of charge ordering and spin gap in alpha'-NaV(2)O(5).

We report the interpretation of the first (51)V data on the low-temperature phase of alpha'-NaV(2)O(5) which presents more than two vanadium valences and compare the data to structural models. The influence of the dependence of the line positions on very small amounts of Na substitution by Ca and Li is reported and discussed. The doping and orientation dependence of the spin gap as seen by (51)T(1) is documented, the evidence points towards a significant anisotropy in the nature of the gap which is sensitive to doping.

Non-operative management of blunt hepatic injury in multiply injured adult patients.

BACKGROUND: Non-operative management of blunt liver trauma has now evolved into a common practice especially since abdominal CT has enabled a more precise evaluation of these patients. CLINICAL MATERIAL: Sixty-three patients, haemodynamically stable, were eligible for the study and enrolled into the protocol of non-operative management of blunt hepatic injury. Fifty-two (82.5%) patients were successfully managed non-operatively (non-operative group). The remaining 11 (17.5%) patients failed the non-operative management and underwent exploratory laparotomy (laparotomy group). RESULTS: Patients managed non-operatively tended to be younger than patients managed operatively (p < 0.05). The mean values of ISS were 16.2 +/- 6.1, 26.1 +/- 8.5, p < 0.001, in the non-operative and laparotomy groups, respectively. Stay in the ICU was significantly decreased in the non-operative patients (p < 0.001). Patients who had a laparotomy significantly increased requirement for blood transfusion (p < 0.001). Six (9.5%) patients managed non-operatively developed complications; perihepatic collections were observed in two patients, an urinoma in one patient and chest infection in three patients. Perihepatic collections and urinoma were successfully drained percutaneously by CT guidance and no further treatment was required. The mortality rate of the entire series of patients was 4.8% (three patients); one death could be related to hepatic injury itself and the other two deaths were attributed to non-hepatic causes. No deaths occurred in the non-operative group. CONCLUSION: Non-operative management should be the initial approach to all patients with blunt liver injuries if haemodynamic stability can be ensured. When continued bleeding can be safely ruled out, a period of close monitoring in the ICU is warranted.