Background Acute kidney injury (AKI) is a serious complication of acute pancreatitis (AP) and causes a high risk of mortality. The aim of this study was to investigate the risk factors for AKI in patients in the early phase of AP.
Methods In this retrospective observational study, 1655 AP patients were divided into an AKI and a non-AKI group. Age, sex, BMI, APACHE II score, smoking history, hypertriglyceridaemia (HTG), alcohol abuse, biliary disease, organ failure, pancreatic necrosis and necrosis debridement were collected from the hospital record database.
Results 1036 males (62.6%) and 619 females (37.4%) were enrolled in this study. 1255 and 430 AP patients were included in the non-AKI and AKI groups, respectively. The mean age was 45.90±11.73 years. Hospital and intensive care unit (ICU) lengths of stay were 18.13±43.26 and 31.53±72.47 days, respectively. The incidence of organ failure and pancreatic necrosis were 25.0% and 32.2%, respectively. The morbidity of percutaneous catheter drainage (PCD) and operative necrosectomy (ON) was 10.9%, and the mortality among AP patients was 6.3%. HTG was identified as a risk factor for AKI in AP (P=0.001). The incidence of organ failure (P=0.001), pancreatic necrosis (P=0.001) and necrosis debridement were greater in the AKI group than those in the non-AKI group.
Conclusions HTG is an independent risk factor for AKI in AP. AP patients with AKI have adverse outcomes such as high rates of organ failure, pancreatic necrosis, and necrosis debridement and longer hospital and ICU lengths of stay.

Figure 1
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Posted 18 Mar, 2020
Posted 18 Mar, 2020
Background Acute kidney injury (AKI) is a serious complication of acute pancreatitis (AP) and causes a high risk of mortality. The aim of this study was to investigate the risk factors for AKI in patients in the early phase of AP.
Methods In this retrospective observational study, 1655 AP patients were divided into an AKI and a non-AKI group. Age, sex, BMI, APACHE II score, smoking history, hypertriglyceridaemia (HTG), alcohol abuse, biliary disease, organ failure, pancreatic necrosis and necrosis debridement were collected from the hospital record database.
Results 1036 males (62.6%) and 619 females (37.4%) were enrolled in this study. 1255 and 430 AP patients were included in the non-AKI and AKI groups, respectively. The mean age was 45.90±11.73 years. Hospital and intensive care unit (ICU) lengths of stay were 18.13±43.26 and 31.53±72.47 days, respectively. The incidence of organ failure and pancreatic necrosis were 25.0% and 32.2%, respectively. The morbidity of percutaneous catheter drainage (PCD) and operative necrosectomy (ON) was 10.9%, and the mortality among AP patients was 6.3%. HTG was identified as a risk factor for AKI in AP (P=0.001). The incidence of organ failure (P=0.001), pancreatic necrosis (P=0.001) and necrosis debridement were greater in the AKI group than those in the non-AKI group.
Conclusions HTG is an independent risk factor for AKI in AP. AP patients with AKI have adverse outcomes such as high rates of organ failure, pancreatic necrosis, and necrosis debridement and longer hospital and ICU lengths of stay.

Figure 1
This is a list of supplementary files associated with this preprint. Click to download.
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