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Article in English | WPRIM | ID: wpr-166101


BACKGROUND: To investigate the effects of acute kidney injury (AKI) after liver resection on the long-term outcome, including mortality and renal dysfunction after hospital discharge. METHODS: We conducted a historical cohort study of patients who underwent liver resection for hepatocellular carcinoma with sevoflurane anesthesia between January 2004 and October 2011, survived the hospital stay, and were followed for at least 3 years or died within 3 years after hospital discharge. AKI was diagnosed based on the Acute Kidney Injury Network classification within 72 hours postoperatively. In addition to the data obtained during hospitalization, serum creatinine concentration data were collected and the glomerular filtration rate (GFR) was estimated after hospital discharge. RESULTS: AKI patients (63%, P = 0.002) were more likely to reach the threshold of an estimated GFR (eGFR) of 45 ml/min/1.73 m² within 3 years than non-AKI patients (31%) although there was no significant difference in mortality (33% vs. 29%). Cox proportional hazard regression analysis showed that postoperative AKI was significantly associated with the composite outcome of mortality or an eGFR of 45 ml/min/1.73 m² (95% CI of hazard ratio, 1.05–2.96, P = 0.033), but not with mortality (P = 0.699), the composite outcome of mortality or an eGFR of 60 ml/min/1.73 m² (P =0.347). CONCLUSIONS: After liver resection, AKI patients may be at higher risk of mortality or moderate renal dysfunction within 3 years. These findings suggest that even after discharge from the hospital, patients who suffered AKI after liver resection may need to be followed-up regarding renal function in the long term.

Acute Kidney Injury , Anesthesia , Carcinoma, Hepatocellular , Classification , Cohort Studies , Creatinine , Glomerular Filtration Rate , Hepatectomy , Hospitalization , Humans , Length of Stay , Liver , Long Term Adverse Effects , Mortality
Medical Education ; : 333-340, 2009.
Article in Japanese | WPRIM | ID: wpr-362702


Background: In Japan, although clinicians have been extremely interested in conducting clinical research, the shortage of clinical researchers is a serious problem. Therefore, it is important to explore barriers to conducting clinical research.1) We mailed a cross-sectional survey to hospital managers asking about their interest in and barriers to conducting clinical research and training clinical researchers at their hospitals.2) Of 810 eligible hospital managers, 301 completed questionnaires (response rate: 37.2%).3) The managers of university hospitals and national medical centers were more interested in conducting clinical research than were managers of other hospitals.4) Furthermore, 60.6% of managers of university hospital and 18.8% of managers of other hospitals reported the need to employ physicians who specialized in clinical research. However, given public research grants, about 50% of hospital managers were willing to employ research residents.5) Our results suggest there are still barriers to conducting clinical research, such as a lack of time set aside for clinicians and specialists to teach clinical research. A substantial strategy is needed to address the shortage of clinical researchers in Japan.