MINS, AKI and Pulmonary Pathology in Patients Undergoing Acute Abdominal Surgery

The main issues are: * To investigate if coronary calcification predisposes the development of myocardial injury and causes an increased mortality rate. * To evaluate the predictive value of NT-pro-BNP in relation to the development of MINS and the mortality rate. * To evaluate the predictive value of different biomarkers of AKI in relation to which patients develop AKI. * To examine the proteins, exosomes and single cell RNA during acute kidney injury in order to describe the molecular processes in the kidney during AKI. * To examine whether a chest CT scan without contrast enhancement will change treatment decisions in the acute gastrointestinal patient compared with a chest x-ray.