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Opioid use is not associated with in-hospital mortality among patients with sickle cell disease in the United States

key information

source: American Society of Hematology

year: 2018

authors: Oladimeji Akinola Akinboro, Stanley Nwabudike, Camille Edwards, Diana Cirstea, Nana Oduraa Addo-Tabiri, Michael Voisine, Hassan Yameen, Adetola A. Kassim

summary/abstract:

Background:
Vaso-occlusive pain crises account for the majority of hospitalizations in patients with sickle cell disease (SCD), and opioids are the mainstay of chronic pain control in SCD.

The study sought to:
i) examine temporal trends in hospitalization rates and in-hospital mortality rates among adults with SCD
ii) compare in-hospital mortality rates for SCD with the rates of opioid prescription-related deaths in the non-SCD general population since the onset of the US opioid epidemic.

Method:
Data was obtained from the National Inpatient Sample from 1998 through 2013. Hospitalizations for patients with sickle cell disease were identified using discharge diagnoses. Hospitalization and in-hospital mortality rates and trends were examined for the entire sample of SCD patients, by the following age groups: 0-17 years, 18-44 years, 45-64 years, and >=65 years as well as by the U.S Census Bureau regions. Annual mid-year population figures provided by the US Census Bureau were used as the reference population for each year.

Result:
There were 1,755,220 hospitalizations among SCD patients in the US from 1998 to 2013. Hospitalization rates for SCD patients initially declined annually by 9.9% from 39/100,000 persons in 1998 to 27/100,000 persons in 2002, but no significant temporal trends were noted from 2002 to 2013. However, among young adults with SCD (18-44 years), there was a significant annual increase in hospitalization rates by 3.8% from 43/100,000 persons in 2002 to 71/100,000 persons in 2013. Elderly SCD patients (>=65 years) also had a significant annual increase in hospitalization rates by 6.5% from 2.7/100,000 persons in 1998 to 5.4/100,000 persons in 2013. The only region with a significant increase in SCD hospitalization rate was the South with an annual increase of 3.5% from 2001 through 2011. There was no significant increase in-hospital SCD mortality, in contrast to the 350% increase in non-SCD opioid prescription-related death rates in the US from 1999 through 2013.

Conclusion:
Hospitalization rates are rising among most age-groups of adults with SCD. The reasons for this finding are unclear but the rising rates may reflect the fragmentation of care for SCD in adults as well as age-related increases in pain-related comorbidities and SCD complications as SCD patients live longer. However, there has been no associated increase in-hospital SCD mortality, supporting extant data which suggest that the rate of opioid-related deaths in SCD is low, and the use of opioids for pain control may be considered relatively safe in the SCD population.

organization: Boston University School of Medicine and Boston Medical Center, USA; Vanderbilt University Medical Center, USA

DOI: 10.1182/blood-2018-99-115573

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