Evaluation of role of heart rate variability with holter monitoring in chronic kidney disease

Background: Chronic kidney disease is prevalent disease even in absence of diabetes and hypertension in 12% adults over 65 yrs of age. Autonomic imbalance is not studied in detail which could be a risk factor for chronic kidney disease.Methods: This Study was observational study in a tertiary care Hospital in pune, india and was conducted for a period of 1 year with sample size of 52. All subjects were known cases of chronic kidney disease from stage III to VD. All individuals of age >18yrs and eGFR ≤60ml/min/1.73m2 according to CKD- EPI equation were included in the study and who were not giving consent were excluded. 24 hrs Holter monitoring was done in stages from ckd stages III to V, for ckd stage VD on both Hemodialysis day and Non hemodialysis. Analysis was done using SPSS version 20 (IBM SPSS Statistics Inc., Chicago, Illinois, USA) Windows software program. The paired t test, analysis of variance (ANOVA) and Chi-square test were used. Level of significance was set at p≤0.05.Results: In this study when Heart rate variability (HRV) parameters were compared in different stages of ckd from stage III to VD (on Hemodialysis day) SDNN, SDNN Index were found to be statistically significant and on non Hemodialysis day SDNN Index was found to be statistically significant. In each subgroup of ckd stage V when diabetic subjects were compared with non-diabetic subjects, HRV parameters like ratio of P/S which was found to be low and significant in ckd stage V diabetic subjects.Conclusions: Chronic kidney disease itself can affect the HRV parameters. Causal relationship between HRV and chronic kidney diseases can be vice versa and further needs larger and prospective studies

Prevalence and severity of metabolic acidosis in patients on maintenance hemodialysis in India

Aim: Metabolic acidosis is a feature of chronic kidney disease (CKD) due to the reduced capacity of the kidney to synthesize ammonia and excrete hydrogen ions. Among the many goals of hemodialysis (HD), the role in correction of metabolic acidosis is an important one. To assess the prevalence and severity of metabolic acidosis in the Indian patients of CKD, who are on maintenance HD (MHD). Methods: This is a cross-sectional study on 35 patients conducted at two centers in Western part of India. The demographic, clinical, and laboratory assessments were done on chronic stable patients receiving MHD. The prevalence and severity of metabolic acidosis were evaluated. Results: Metabolic acidosis was found in 22 out of 35 patients (62.85%), with mean predialysis serum pH and HCO3 of 7.32 ± 0.083 and 20.37 ± 4.94 mmol/L, respectively. Conclusion: Metabolic acidosis is significantly prevalent in patients on MHD in India