HYPERTENSION AS A RISK FACTOR FOR MORTALITY AND THE DEVELOPMENT OF CHRONIC KIDNEY DISEASE AFTER AN EPISODE OF ACUTE KIDNEY INJURY WITH FULL RECOVERY IN THE ELDERLY

Objective: Acute kidney injury (AKI) is a real public health problem due to its severity and its consequences in the short, medium and long term. Hypertension is a very common disease in our country. Design and method: We undergone a retrospective study which was carried out in the nephrology department of Fattouma Bourguiba hospital in Monastir. We included patients aged > 65 years, who had an AKI with full recovery who had been hospitalized between January 2002 and December 2015. Our study aimed to assess the impact of hypertension on mortality and the development of chronic kidney disease (CKD) after an episode of AKI. Results: Our population was made up of 67 men and 60 women, 30.1% had multiple comorbidities. Pre renal Aki represented the predominant mechanism of AKI which was retained in our study with a rate of 40% and dehydration as the main aetiology in 70 patients. In the short term, 15 patients had progressed to CKD. The mean overall survival in our study was 159 months with a high risk of mortality in elderly (patients aged >65 years), who had multiple comorbidites, hypertensive, diabetics, with vascular disease, Charlson Cmorbidity index >5, who presented with hyperkaleamia >5.5 and pre renal mechanism of the AKI episode. Conclusions: Hypertension is a real public health problem impacting the short, medium and long term prognosis of patients who have had an episode of AKI with full recovery