diagnostic accuracy of intra-abdominal pressure measurement method via bladder in predicting renal dysfunction after kidney transplantation

Background: the patients undergoing kidney transplantation are exposed to intra-abdominal pressure (iap) elevation following a surgery.aim: the present study aimed to evaluate the diagnostic accuracy of the iap measurement method via bladder in the prediction of renal dysfunction after kidney transplantation.method: this longitudinal study was conducted on 135 kidney transplant patients in two hospitals in iran/afghanistan from february 2019 to the end of october 2019. the patients’ iap was measured by nurses every 6 h up to 24 h after the surgery. the indices of renal dysfunction were utilized, including creatinine increase and urine reduction. doppler ultrasound was used as a golden standard diagnostic test. data were analyzed in stata 14.results: out of 135 patients, an increase in iap>10 mmhg was observed in 9.5% of cases. urinary loss and creatinine decrease more than 25% of baseline indicated a significant correlation with iap mean difference (p=0.001) (4-1). therefore, iap could predict renal dysfunction based on the reduction of urinary volume and a decrease in creatinine of more than 25% of baseline. finally, a comparison between the diagnostic power of the iap measurement method and doppler ultrasound indicated 90% of sensitivity and 94% of negative predictive value in predicting renal dysfunction.implications for practice: as evidenced by the obtained results, the iap measurement via bladder catheter might be a primary test to predict renal dysfunction before doppler ultrasound; nonetheless, further research is required.