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Published on: October 2, 2020
Intradialytic hypotension is associated with dialytic age in patients on chronic hemodialysis
Maurizio Bossola1, Alice Laudisio, Manuela Antocicco
1Hemodialysis Service, Department of Surgery, Catholic University of the Sacred Heart , Rome , Italy .
Insights
Dialytic age (DA) is linked to a higher likelihood of intradialytic hypotension (IDH) and more frequent IDH events in chronic hemodialysis patients. Further research is needed to uncover the reasons behind this association.
Area of Science:
- Nephrology
- Cardiovascular Medicine
Background:
- Intradialytic hypotension (IDH) is a frequent complication in patients undergoing chronic hemodialysis.
- The specific determinants of IDH remain incompletely understood, necessitating further investigation.
Purpose of the Study:
- To investigate the association between dialytic age (DA) and the occurrence of IDH in patients on chronic hemodialysis.
- To determine if DA influences the frequency of IDH episodes.
Main Methods:
- A cohort of 82 patients on chronic hemodialysis for over one year was studied between January 2012 and January 2013.
- IDH was defined by a significant drop in systolic blood pressure or mean arterial pressure accompanied by clinical symptoms.
- Linear and logistic regression analyses were employed to assess the adjusted relationship between DA and IDH events.
Main Results:
- The average dialytic age (DA) was 92 ± 81 months.
- Eleven patients (16%) experienced IDH.
- DA was significantly associated with an increased probability of IDH (OR = 1.01; 95% CI = 1.01-1.02; p = 0.048) and a higher number of IDH events, even after adjusting for confounders.
Conclusions:
- Dialytic age (DA) is a significant factor associated with an increased risk of intradialytic hypotension (IDH) and a greater number of IDH episodes.
- Further studies are required to elucidate the underlying mechanisms driving the association between DA and IDH.
Objective:
Intradialytic hypotension (IDH) is common in patients on chronic hemodialysis, but knowledge on determinants is still unclear. The present study aims at evaluating the association between IDH and dialytic age (DA) in patients on chronic hemodialysis.
Methods:
Between January 2012 and January 2013, 82 patients on chronic hemodialysis for at least 1 year were screened for inclusion in the present study. Of these, 14 were excluded because of advanced heart failure (n.9), history of alcohol/substance abuse (n.1), diagnosis of dementia (n.2), actual instability of clinical conditions requiring hospitalization (n.2). IDH was defined as a decrease in systolic blood pressure ≥20 mmHg or a decrease in mean arterial pressure (MAP) by 10 mmHg associated with clinical events and need for nursing interventions. The number of IDH episodes in 10 consecutive hemodialysis sessions was recorded for each patient. Linear and logistic regressions were adopted to assess the adjusted association between IDH and DA.
Results:
The mean DA was 92 ± 81. Eleven patients (16%) experienced IDH. DA was associated with IDH (OR = 1.01; 95% CI = 1.01-1.02; p = 0.048), after adjusting for potential confounders. DA was associated with the numbers of IDH events in the unadjusted model (B = 0.02; 95% CI = 0.01-0.03; p = 0.042), after adjusting for age and sex (B = 0.01; 95% CI = 0.01-0.03; p = 0.042) as well as in the multivariable model (B = 0.02; 95% CI = 0.01-0.05; p = 0.045).
Conclusion:
DA is associated with an increased probability of IDH and with increased number of IHD events. Studies are needed to understand the underlying factors of such an association.
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