RT Journal Article SR Electronic T1 Abdominal hypertension characterised by severe haemodynamic changes as a complication of percutanous nephrolithotomy JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr2012007517 DO 10.1136/bcr-2012-007517 VO 2012 A1 Ayse Belin Ozer A1 Fatih Firdolas A1 Ahmet Aydin A1 Omer L Erhan YR 2012 UL http://casereports.bmj.com/content/2012/bcr-2012-007517.abstract AB Percutanous nephrolithotomy (PCNL) was performed on a patient in a prone position. During the first hour of intervention, some unwanted haemodynamic complications arose, which included a decrease in systemic blood pressure, an increase in heart rate and an increase in peak inspiratory pressures. Owing to worsening of those unexplained haemodynamic abnormalities, surgery was terminated. As the patient turned from prone to supine position, abdominal distention was noticed. Later, 3 litres of fluid were removed from the abdomen via peritoneal lavage. Upon fluid removal, a dramatic haemodynamic improvement was observed. The problem was thought to have been caused by a technical error in placing the dilator inside the abdomen, which allowed the irrigation fluid to accumulate inside the abdominal cavity. The aim of this presentation is to raise awareness of intra-abdominal hypertension when the aforementioned haemodynamic abnormalities are detected during PCNL. Early detection and treatment may prevent morbidity and mortality in similar cases.