Occurrence and risk factors for acute kidney injury in patients hospitalized with acute pyelonephritis, and their clinical outcomes: A single center study from Northern India

Background: Acute kidney injury (AKI) associated with acute pyelonephritis (APN) is considered rare. This study is conducted to find out the occurrence and risk factors for AKI in patients hospitalized with acute pyelonephritis and their clinical outcomes. Materials and Methods: All inpatients with...

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Main Authors: Saksham Seth, Nucksheeeba Aziz Bhat, Rayees Yousuf Sheikh, Puja Keshwani, Pranav Mehta
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2023-01-01
Series:APIK Journal of Internal Medicine
Subjects:
Online Access:http://www.ajim.in/article.asp?issn=2666-1802;year=2023;volume=11;issue=2;spage=101;epage=106;aulast=Seth
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author Saksham Seth
Nucksheeeba Aziz Bhat
Rayees Yousuf Sheikh
Puja Keshwani
Pranav Mehta
author_facet Saksham Seth
Nucksheeeba Aziz Bhat
Rayees Yousuf Sheikh
Puja Keshwani
Pranav Mehta
author_sort Saksham Seth
collection DOAJ
description Background: Acute kidney injury (AKI) associated with acute pyelonephritis (APN) is considered rare. This study is conducted to find out the occurrence and risk factors for AKI in patients hospitalized with acute pyelonephritis and their clinical outcomes. Materials and Methods: All inpatients with APN from December 2018 to May 2020 were included. Results: A total of 95 patients were included. Escherichia coli was the most common organism grown. At presentation, 79/95 (83.2%) patients had renal dysfunction. 31/79 (39.2%) patients required hemodialysis. AKI was 2.4 times common in men; P = 0.013. The mean duration of fever in patients with and without renal dysfunction was 8.30 ± 2.72 and 5.31 ± 0.91 days, respectively; P < 0.001. 73/79 (92.4%) patients with AKI had anemia as against 2/14 (14.2%) patients without AKI; P < 0.001. AKI developed in 100% of the patients with known chronic kidney disease (CKD) at baseline and 41.6% of the patients with normal baseline kidney function; P < 0.001. Diabetes mellitus was present in 29/79 (36.7%) patients with AKI and 6/16 (37.5%) patients without AKI; P = 0.31. Hospital stay in days was 11.65 ± 5.9 and 5.81 ± 0.91, respectively, in patients with and without renal dysfunction; P < 0.001. 6/95 (6.3%) patients died. All six patients had renal dysfunction. At 3 months, renal functions normalized in 38/79 (48.1%) patients and 8/31 (25.8%) patients remained dialysis-dependent. Conclusions: AKI is a common complication of APN. It is usually reversible with early and appropriate management. Male gender, anemia, bilateral pyelonephritis, baseline CKD, and delayed presentation to hospital are associated with increased risk of AKI. It is associated with an increased risk of dialysis, hospitalization days, and mortality.
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spelling doaj.art-74a7c1b67e06455198a44f1ae7bd9ba72023-05-18T04:59:01ZengWolters Kluwer Medknow PublicationsAPIK Journal of Internal Medicine2666-18022666-18102023-01-0111210110610.4103/ajim.ajim_38_22Occurrence and risk factors for acute kidney injury in patients hospitalized with acute pyelonephritis, and their clinical outcomes: A single center study from Northern IndiaSaksham SethNucksheeeba Aziz BhatRayees Yousuf SheikhPuja KeshwaniPranav MehtaBackground: Acute kidney injury (AKI) associated with acute pyelonephritis (APN) is considered rare. This study is conducted to find out the occurrence and risk factors for AKI in patients hospitalized with acute pyelonephritis and their clinical outcomes. Materials and Methods: All inpatients with APN from December 2018 to May 2020 were included. Results: A total of 95 patients were included. Escherichia coli was the most common organism grown. At presentation, 79/95 (83.2%) patients had renal dysfunction. 31/79 (39.2%) patients required hemodialysis. AKI was 2.4 times common in men; P = 0.013. The mean duration of fever in patients with and without renal dysfunction was 8.30 ± 2.72 and 5.31 ± 0.91 days, respectively; P < 0.001. 73/79 (92.4%) patients with AKI had anemia as against 2/14 (14.2%) patients without AKI; P < 0.001. AKI developed in 100% of the patients with known chronic kidney disease (CKD) at baseline and 41.6% of the patients with normal baseline kidney function; P < 0.001. Diabetes mellitus was present in 29/79 (36.7%) patients with AKI and 6/16 (37.5%) patients without AKI; P = 0.31. Hospital stay in days was 11.65 ± 5.9 and 5.81 ± 0.91, respectively, in patients with and without renal dysfunction; P < 0.001. 6/95 (6.3%) patients died. All six patients had renal dysfunction. At 3 months, renal functions normalized in 38/79 (48.1%) patients and 8/31 (25.8%) patients remained dialysis-dependent. Conclusions: AKI is a common complication of APN. It is usually reversible with early and appropriate management. Male gender, anemia, bilateral pyelonephritis, baseline CKD, and delayed presentation to hospital are associated with increased risk of AKI. It is associated with an increased risk of dialysis, hospitalization days, and mortality.http://www.ajim.in/article.asp?issn=2666-1802;year=2023;volume=11;issue=2;spage=101;epage=106;aulast=Sethacute pyelonephritisacute kidney injurydiabetes mellitusdialysishydroureteronephrosis
spellingShingle Saksham Seth
Nucksheeeba Aziz Bhat
Rayees Yousuf Sheikh
Puja Keshwani
Pranav Mehta
Occurrence and risk factors for acute kidney injury in patients hospitalized with acute pyelonephritis, and their clinical outcomes: A single center study from Northern India
APIK Journal of Internal Medicine
acute pyelonephritis
acute kidney injury
diabetes mellitus
dialysis
hydroureteronephrosis
title Occurrence and risk factors for acute kidney injury in patients hospitalized with acute pyelonephritis, and their clinical outcomes: A single center study from Northern India
title_full Occurrence and risk factors for acute kidney injury in patients hospitalized with acute pyelonephritis, and their clinical outcomes: A single center study from Northern India
title_fullStr Occurrence and risk factors for acute kidney injury in patients hospitalized with acute pyelonephritis, and their clinical outcomes: A single center study from Northern India
title_full_unstemmed Occurrence and risk factors for acute kidney injury in patients hospitalized with acute pyelonephritis, and their clinical outcomes: A single center study from Northern India
title_short Occurrence and risk factors for acute kidney injury in patients hospitalized with acute pyelonephritis, and their clinical outcomes: A single center study from Northern India
title_sort occurrence and risk factors for acute kidney injury in patients hospitalized with acute pyelonephritis and their clinical outcomes a single center study from northern india
topic acute pyelonephritis
acute kidney injury
diabetes mellitus
dialysis
hydroureteronephrosis
url http://www.ajim.in/article.asp?issn=2666-1802;year=2023;volume=11;issue=2;spage=101;epage=106;aulast=Seth
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