Prevalence of chronic kidney disease (CKD) appears to be increasing in India. A few studies have studied the prevalence of CKD in urban populations, but there is a paucity of such studies in the rural populations. This project was undertaken to study the prevalence of CKD among adults in a rural population near Shimoga, Karnataka and to study the risk factor profile. Door-to-door screening of 2091 people aged 18 and above was carried out. Demographic and anthropometric data were obtained, urine was analyzed for protein by dipstick and serum creatinine was measured in all participants. Glomerular filtration rate was estimated (eGFR) using the 4-variable modification of diet in renal disease (MDRD) equation and Cockcroft-Gault equation corrected to the body surface area (CG-BSA). The total number of subjects studied was 2091. Mean age was 39.88 ± 15.87 years. 45.57% were males. The prevalence of proteinuria was 2.8%. CKD was seen in 131 (6.3%) subjects when GFR was estimated by MDRD equation. The prevalence of CKD was 16.54% by the CG-BSA method. There was a statistically significant relationship of CKD with gender, advancing age, abdominal obesity, smoking, presence of diabetes and hypertension. The prevalence of CKD is higher compared to the previous studies from rural India and is comparable to that in the studies from the urban Indian populations. The wide difference between the CKD prevalence between MDRD and CG-BSA equations suggests the need for a better measure of kidney function applicable to Indian population.
Chronic kidney disease of unknown etiology (CKDu) is a form of chronic kidney disease (CKD) that is prevalent in certain rural populations around the world. It is distinct by its clinicopathologic characteristics and has multifactorial etiology, being mostly linked to several environmental toxins. Although the presentation is similar in various regions across the globe, it also differs in subtle ways from region to region. In India too, there have been reports of the disease in several pockets. There is a need for a comprehensive definition to identify the cases accurately to ease clinical diagnosis and facilitate screening of populations in affected areas. This article presents the diagnostic criteria for CKDu proposed in a consensus meeting at Chennai, India, in May 2017.
Hypertension (HTN) is an important cause for chronic kidney disease (CKD). There is a paucity of studies exploring the association of HTN with CKD from rural India. The objective of the study was to determine the prevalence and the determinants for HTN in a rural population in South India, focusing on the association with CKD. In a cross-sectional study on 2984 adults in three villages, demographic and anthropometric data were collected. Blood pressure was recorded on all individuals and prevalence was estimated. Proteinuria, microalbuminuria (MA) and estimated glomerular filtration rate (eGFR) were determined in a subgroup of 1331 subjects and the relation with HTN was analysed. Prevalence of HTN was 30.4% (95% CI 28.75-32.05%). In all, 78.08% had stage 1 HTN while 22% had stage 2 HTN. In total, 27.4% (249/908) subjects were aware of their hypertensive status. Of them, only 14.4% had adequate control of blood pressure. Age>50 years, diabetes, body mass index >25 and eGFR<60 ml min were independent significant predictors of HTN (P<0.05). HTN was found to be an important risk factor for CKD even after adjusting for age, diabetes and cardiovascular risk factors (OR 2.22, 95% CI 1.46-3.36, P<0.001). The high prevalence of HTN, very low level of awareness and control, and the significant association with kidney disease indicate a need for stronger public health initiative with better penetration for awareness and screening for HTN and CKD in India's villages.
Introduction:There is a high prevalence of chronic kidney disease (CKD) in the rural agrarian population of South India and it often appears unrelated to major known causes such as diabetes or glomerulonephritis.Methods:In a matched case–control study conducted in a rural population in Shivamogga district in South India, the association of heavy metals – lead (Pb), arsenic (As), cadmium (Cd) – and pesticides in CKD was studied. Blood and spot urine samples were tested quantitatively for heavy metals and qualitatively for pesticides.Results:In all, 69 matched pairs (40 female, 58%) were recruited. The mean estimated glomerular filtration rate (mL/min/1.73 m2) was 60.1 (14.2) in cases and 83.4 (13.4) in controls. Elevated blood lead level >5 μg/dL was seen in 15 cases and 25 controls, respectively [P = 0.035, matched odds ratio (MOR) 0.5, 95% confidence interval (CI) 0.22–1.05]. Urinary Pb was elevated in 16 cases and 13 controls, respectively (P = 0.28, MOR 1.25, 95% CI 0.58–2.73). There was no significant association with As and Cd, while pesticide residues were undetectable in cases as well as controls. These results did not change even after excluding CKD cases with diabetes, stage 2 hypertension, and significant proteinuria.Conclusions:There was no statistical significant association between any of the studied heavy metals and CKD, although there was a significant burden of heavy metals in the studied subjects.
The decision regarding dialysis initiation is complex. Awareness that renal replacement therapy should not be regarded as default therapy for every patient with advanced renal failure is necessary. Decision to initiate dialysis and modality should be individualized in a shared decision-making process involving the treating nephrologist and the patient. Patients should receive predialysis education early in the course of chronic kidney disease so as to help prepare them well in advance for this eventuality. Withholding dialysis may be a reasonable option in a certain subset of patients, especially elderly patient with multiple co-morbid illnesses. Comprehensive conservation care should be offered in all patients where the decision to not dialyze is taken.
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