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Идёт набор NCT05642156

Hemodynamics in Chronic Hemodialysis Patients Undergoing Isolated Ultrafiltration Compared to Conventional Hemodialysis

Без фазы С лечением End Stage Kidney Disease

Ориентир для пациента и семьи

Простыми словами

Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.

Что изучают
В протоколе указаны: isolated Ultrafiltration (iso-UF).
Кому может быть актуально
Состояния в реестре: End Stage Kidney Disease. Базовые параметры: от 18 лет · Все.
Что важно проверить
Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
Где проводится
Австрия
Следующий шаг
Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →

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Обзор

Patients treated with hemodialysis (HD) bear increased risk of cardiovascular events, which results in high morbidity and mortality among this cohort of patients. Intradialytic hypotension (IDH), which is an independent risk factor for mortality, occurs in up to 20% of hemodialysis session and may lead to myocardial stunning and cerebral ischemia resulting in increased white matter lesions, gastrointestinal ischemia and shunt vessel thrombosis. Due to the deleterious effects of IDH during HD, preventive measurements such as limiting interdialytic weight gain are recommended, but frequently fluid and salt restriction are not adhered to, thus increasing dialysis time or frequency of treatments is a common strategy in those patients.

Подробное описание

A KDIGO (Kidney Disease: Improving Global Outcomes) controversies conference suggested that isolated ultrafiltration (iso-UF) may provide a benefit in hemodynamic stability, but whether this translates into benefits in hard outcomes is unclear and requires further research. So called-sequential dialysis, that is, isolated ultrafiltration followed by HD is commonly recommended, but evidence is very limited and mainly based on small older studies.

In conclusion, the supposed benefit for intradialytic hemodynamic stability attributed to isolated ultrafiltration compared to hemodialysis seems to be due to less pronounced changes in vascular resistance, but the reason for this discrepancy is unclear. Thus far, recommendations for using iso-UF to improve hemodynamic stability are mainly based on old studies which may not be applicable to modern technique used nowadays. Furthermore, there is no standardized approach on how to use isolated ultrafiltration, with neither a time period nor ultrafiltration rate recommended by the guidelines.

In this study, the investigators try to assess changes in peripheral resistance, osmolality, cardiac output, and cardiac power index and try to establish exploratory correlations to IDH episodes. Furthermore, the investigators want to assess the impact on dialysis quality by reduced time on dialysis.

Вмешательства

  • Процедура isolated Ultrafiltration (iso-UF)
    isolated Ultrafiltration

Первичные конечные точки

  • Total peripheral resistance index (TPRI) [Срок оценки: up to 8 weeks]

Критерии участия

Критерии включения

  • Written consent of the participant after being informed
  • At least 18 years of age
  • End stage kidney disease patient undergoing hemodialysis
  • Dry weight stable for a minimum of one month
  • Interdialytic weight gain of >2 liters in the short interdialytic interval

Критерии исключения

  • No informed consent was obtained
  • Patients with a pacemaker or implanted medical device that prevents compliance with study regulations
  • Patients treated with hemodiafiltration
  • Patients treated with medium cut-off membranes (Theranova, Baxter)
  • Patients with recurrent severe hyperkalemia after the short interdialytic interval (K+ concentration > 6.0 mmol/L, requiring more than 2 hours of dialysis to ameliorate the post-dialytic shift from other compartments.
  • Women of childbearing age not using contraception

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение
Рандомизированное
Модель
Перекрёстный дизайн
Маскирование
Открытое
Основная цель
Лечение

Центры проведения

Австрия · 1 центр
  • Medical University of Graz — Graz

Идентификаторы

NCT: NCT05642156 · ISO-UF

Первоисточники (государственные реестры)

Открыть это исследование на ClinicalTrials.gov ↗