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Inpatient hemodialysis initiation: reasons, risk factors and outcomes
Deidra C Crews1, Bernard G Jaar, Laura C Plantinga
1Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA. dcrews1@jhmi.edu
Insights
Starting chronic hemodialysis as an inpatient may reduce hospitalizations, especially for patients with late nephrology referral, comorbidities, or low social support. This contrasts with the general view of inpatient initiation being undesirable.
Area of Science:
- Nephrology
- Public Health
- Healthcare Management
Background:
- Inpatient initiation of chronic hemodialysis is often avoided due to high costs and hospitalization risks.
- Understanding patient characteristics and outcomes associated with inpatient initiation is crucial for optimizing care pathways.
Purpose of the Study:
- To investigate patient demographics and clinical outcomes linked to initiating chronic hemodialysis during an inpatient stay.
- To assess the association between inpatient hemodialysis initiation and subsequent patient health events.
Main Methods:
- A prospective cohort study design was employed.
- Multivariable analyses were used to evaluate the independent association of inpatient initiation with outcomes, adjusting for patient factors and propensity scores.
Main Results:
- 63% of incident hemodialysis patients (410/652) initiated as inpatients, primarily due to uremia and volume overload.
- Inpatient initiators were more likely to be unmarried, have less social support, multiple comorbidities, and late nephrology referral.
- Inpatient initiation showed a protective association against all-cause hospitalization (IRR=0.92) and infectious hospitalizations, particularly in high-risk groups.
Conclusions:
- Inpatient hemodialysis initiation demonstrates a protective effect on subsequent hospitalizations for specific patient subgroups.
- Patients referred late to nephrology, those with multiple comorbidities, or limited social support may benefit from inpatient initiation regarding hospitalization risk.
Background/Aims:
Inpatient initiation of chronic hemodialysis is considered undesirable because of cost and possible harms of hospitalization. We examined the patient characteristics and outcomes associated with inpatient initiation.
Methods:
In a prospective cohort study of incident dialysis patients, the independent association of inpatient hemodialysis initiation with patient outcomes was assessed in multivariable analyses with adjustment for patient characteristics and propensity for inpatient initiation.
Results:
A total of 410 of 652 (63%) hemodialysis patients began as inpatients; uremia and volume overload were the most commonly documented reasons. Compared to outpatients, inpatients were more likely to be unmarried, report less social support, have multiple comorbidities and be referred to a nephrologist 4 months or less prior to initiation. Inpatient initiation was protective for subsequent all-cause hospitalization (incidence rate ratio (IRR) = 0.92, confidence interval (CI) 0.89-0.94); this was most pronounced among those who had the highest propensity for inpatient initiation (IRR = 0.66, CI 0.56-0.78), including those referred late to nephrology. Similar results were found for infectious hospitalization. Mortality [hazard ratio = 1.03, CI 0.82-1.30] and cardiovascular events were not significantly different for inpatients versus outpatients.
Conclusion:
Inpatient hemodialysis initiation has a protective association with hospitalization among those patients referred late to nephrology, with multiple comorbidities and/or little social support.
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