Dynamics of peritoneal transport and cardiovascular outcomes of peritoneal dialysis treatment
- Authors: Salikhova K.A.1,2, Gerasimchuk R.P.1,3, Sabodash A.B.2,4, Zemchenkov A.Y.3, Vishnevskii K.A.1,3, Bakulina N.V.1
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Affiliations:
- North-Western State Medical University named after I.I. Mechnikov
- BBraun Avitum Russland Clinics, Detached Unit 1
- City Mariinsky Hospital
- Academician I.P. Pavlov First St. Petersburg State Medical University
- Issue: Vol 16, No 3 (2024)
- Pages: 44-59
- Section: Original research
- URL: https://journal-vniispk.ru/vszgmu/article/view/271703
- DOI: https://doi.org/10.17816/mechnikov630144
- ID: 271703
Cite item
Abstract
BACKGROUND: Solute and water transport by peritoneal membrane has significant variation between patients; the function changes significantly over time. This affects treatment outcomes and requires individual approaches.
AIM: To evaluate the influence of the baseline peritoneal transport state, its dynamics during peritoneal dialysis and the possibility of long-term outcomes modification.
MATERIALS AND METHODS: The dynamics of peritoneal transport of solutes (in peritoneal equilibrium test, PET) and water (in mini-PET) was evaluated in a prospective interventional open-label study with historical control among 96 unselected consecutive patients admitted in three dialysis centers with unified program of peritoneal membrane monitoring and protection.
RESULTS: Compared to the matched standard arm, the increase in peritoneal solute transport was significantly slower (by 9.5%) in the observation group. Ultrafiltration in classical PET decreased more slowly (by 28%). At baseline ultrafiltration was satisfactory (the proportion of the patients with ultrafiltration less 400 ml was 7.6%); water transport by small pores did not decrease (−1.1 ± 5.9 ml/year), and the decrease in total ultrafiltration (by 32.1 ± 8.2 ml/year) was due to a decrease in free water transport (by 29.9 ± 7.6 ml/year). Negative dynamics of free water transport was associated with total glucose load and with monthly glucose load greater than 2.68 kg/month. More than one case of peritonitis was associated with a more rapid decline in free water transport. The comorbidity increased in 34 of 96 patients, with median first/last scores of 5 (4–6) and 6 (4–7) points; (Wilcoxon Z = −5.423; p < 0.001). When analyzed separately by peritoneal transport category, a significant worsening of the comorbidity index was observed only for high average and high transporters (Z = −2.754, p = 0.006 and Z = −3.357, p = 0.001, respectively).
CONCLUSIONS: The interaction between peritoneal transport, primarily free water transport, and cardiovascular disease is certainly two-way: deterioration of water balance due to loss of effective ultrafiltration leads to volume overload and progression of cardiovascular disease. On the other hand, cardiovascular disease contributes to peritoneal membrane damage. The most sensitive monitoring of interventions effectiveness in membrane protection and preventing cardiovascular disease progression is the separate measuring of water transport through small pores and ultrapores, which simultaneously reveals a feature of progressive peritoneal fibrosis, a potential precursor of encapsulating peritoneal sclerosis.
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##article.viewOnOriginalSite##About the authors
Karina A. Salikhova
North-Western State Medical University named after I.I. Mechnikov; BBraun Avitum Russland Clinics, Detached Unit 1
Author for correspondence.
Email: karisha13@yandex.ru
ORCID iD: 0009-0008-5100-6601
SPIN-code: 1438-0125
applicant for the degree of Cand. Sci. (Medicine)
Russian Federation, Saint Petersburg; Saint PetersburgRoman P. Gerasimchuk
North-Western State Medical University named after I.I. Mechnikov; City Mariinsky Hospital
Email: romger@rambler.ru
ORCID iD: 0009-0009-2309-8083
SPIN-code: 9886-6574
MD, Cand. Sci. (Medicine)
Russian Federation, Saint Petersburg; Saint PetersburgAnastasia B. Sabodash
BBraun Avitum Russland Clinics, Detached Unit 1; Academician I.P. Pavlov First St. Petersburg State Medical University
Email: sabodash@list.ru
ORCID iD: 0009-0007-9561-9779
MD, Cand. Sci. (Medicine)
Russian Federation, Saint Petersburg; Saint PetersburgAlexander Yu. Zemchenkov
City Mariinsky Hospital
Email: kletk@inbox.ru
ORCID iD: 0000-0002-4590-3380
SPIN-code: 1679-1978
MD, Cand. Sci. (Medicine)
Russian Federation, Saint PetersburgKonstantin A. Vishnevskii
North-Western State Medical University named after I.I. Mechnikov; City Mariinsky Hospital
Email: vishnevskii2022@mail.ru
ORCID iD: 0000-0001-6945-4711
SPIN-code: 4417-0736
MD, Cand. Sci. (Medicine)
Russian Federation, Saint Petersburg; Saint PetersburgNatalia V. Bakulina
North-Western State Medical University named after I.I. Mechnikov
Email: nv_bakulina@mail.ru
ORCID iD: 0000-0003-4075-4096
SPIN-code: 9503-8950
MD, Dr. Sci. (Medicine), Professor
Russian Federation, Saint PetersburgReferences
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