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Submitted: 11 Dec 2022
Accepted: 29 Oct 2023
ePublished: 29 Jan 2024
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J Renal Inj Prev. 2024;13(1): e32154.
doi: 10.34172/jrip.2023.32154
  Abstract View: 799
  PDF Download: 487

Original

Bacteriological quality of water in hemodialysis unit using ozone disinfection; a 12-year experience

Nabadwip Pathak 1* ORCID logo, Sujitha Elan 2, Sheela Devi 2 ORCID logo

1 Department of Nephrology, Pondicherry Institute of Medical Science, Puducherry, India
2 Department of Microbiology, Pondicherry Institute of Medical Science, Puducherry, India
*Corresponding Author: Nabadwip Pathak, Email: nabapthk88@gmail.com, , Email: info@pimsmmm.com

Abstract

Introduction: A substantial quantity of pure/ultrapure water is required to initiate hemodialysis (HD)/hemofiltration (HF) therapy for patients with renal failure. Routine disinfection of the water treatment plant is highly needed to produce ultrapure/pure water for HD. To the best of our knowledge and belief, this study is the first of its type and origin to evaluate ozone disinfection levels in a HD unit. Objectives: This study was conducted in the Pondicherry Institute of Medical Sciences (PIMS) HD unit and examined the treated product’s bacteriological quality.

Methods and Materials: The hospital record was utilized to obtain the product water culture reports based on the ozone disinfection and product water culture strategy. The product water culture fraction was investigated in concordance with the recommended limits.

Results: Of 109 product water culture report samples, 108 (99.1%) aligned with the recommended limits. The product water was cultured via the sterile molten nutrient agar approach; satisfactory numbers of colony counts (<100 CFU/mL) were obtained within 24–48 hours of analysis. The product water purification/disinfection was undertaken per week via the 0.1 Parts-Per-Million ozone dose, administered consistently for 15 minutes.

Conclusion: The purification/disinfection of the product water in a HD unit may be undertaken by expert supervision via the ozone disinfection strategy.


Implication for health policy/practice/research/medical education:

The study results revealed that merely 0.9% of water samples did not comply with the Association for the Advancement of Medical Instrumentation (AAMI) criteria, thereby indicating the high disinfection potential of ozone disinfection strategy in the hemodialysis unit’s water treatment plant.

Please cite this paper as: Pathak N, Elan S, Devi S. Bacteriological quality of water in hemodialysis unit using ozone disinfection; a 12-year experience. J Renal Inj Prev. 2024; x(x): e32154. doi: 10.34172/jrip.2023.32154.

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