What drives the increasing utilisation of hemicraniectomy in acute ischaemic stroke?

Pratik Bhattacharya, Amit Kansara, Seemant Chaturvedi, William Coplin

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Background: Survival after malignant middle cerebral artery infarcts is dismal. In 2007, a pooled analysis of randomised trials in Europe demonstrated a substantial survival benefit from decompressive hemicraniectomy, with a number needed to treat of 2 for survival. Our objective was to review factors driving the nationwide utilisation of this potentially lifesaving procedure in the USA. Methods: Data from the Nationwide Inpatient Sample for 2001-2009 were reviewed. Hospitalisations with a discharge diagnosis of an acute ischaemic stroke were included. Hemicraniectomy utilisation was determined within this subset. Nationwide estimates of utilisation were calculated for each year. Trends across the years were estimated for various subgroups. Results: From 2001 to 2009, there were an estimated 4 909 519 acute ischaemic stroke discharges. The estimated frequency of hemicraniectomy increased from 118 (0.02% of stroke discharges in 2001) to 804 (0.15% of stroke discharges in 2009) (trend p<0.001). The increased utilisation was greatest for younger subjects (age<45 years; trend p<0.001) and men (trend p<0.001). Urban teaching hospitals were responsible for the greatest increase in hemicraniectomy utilisation: from 0.05% of stroke discharges in 2001 to 0.28% in 2009. The increase was steady and sustained over the decade. In comparison, rural and urban non-teaching hospitals showed a much smaller improvement in utilisation. Conclusion: Utilisation of hemicraniectomy in the USA has increased significantly, in line with compelling results from European clinical trials. Early transfer of patients with malignant infarctions to urban teaching centres could potentially extend the survival benefit to a larger population.

Original languageEnglish (US)
Pages (from-to)727-731
Number of pages5
JournalJournal of Neurology, Neurosurgery and Psychiatry
Volume84
Issue number7
DOIs
StatePublished - Jul 2013
Externally publishedYes

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Stroke
Survival
Patient Transfer
Rural Hospitals
Numbers Needed To Treat
Urban Hospitals
Middle Cerebral Artery
Teaching Hospitals
Infarction
Inpatients
Teaching
Hospitalization
Clinical Trials
Population

ASJC Scopus subject areas

  • Clinical Neurology
  • Psychiatry and Mental health
  • Surgery
  • Arts and Humanities (miscellaneous)

Cite this

What drives the increasing utilisation of hemicraniectomy in acute ischaemic stroke? / Bhattacharya, Pratik; Kansara, Amit; Chaturvedi, Seemant; Coplin, William.

In: Journal of Neurology, Neurosurgery and Psychiatry, Vol. 84, No. 7, 07.2013, p. 727-731.

Research output: Contribution to journalArticle

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abstract = "Background: Survival after malignant middle cerebral artery infarcts is dismal. In 2007, a pooled analysis of randomised trials in Europe demonstrated a substantial survival benefit from decompressive hemicraniectomy, with a number needed to treat of 2 for survival. Our objective was to review factors driving the nationwide utilisation of this potentially lifesaving procedure in the USA. Methods: Data from the Nationwide Inpatient Sample for 2001-2009 were reviewed. Hospitalisations with a discharge diagnosis of an acute ischaemic stroke were included. Hemicraniectomy utilisation was determined within this subset. Nationwide estimates of utilisation were calculated for each year. Trends across the years were estimated for various subgroups. Results: From 2001 to 2009, there were an estimated 4 909 519 acute ischaemic stroke discharges. The estimated frequency of hemicraniectomy increased from 118 (0.02{\%} of stroke discharges in 2001) to 804 (0.15{\%} of stroke discharges in 2009) (trend p<0.001). The increased utilisation was greatest for younger subjects (age<45 years; trend p<0.001) and men (trend p<0.001). Urban teaching hospitals were responsible for the greatest increase in hemicraniectomy utilisation: from 0.05{\%} of stroke discharges in 2001 to 0.28{\%} in 2009. The increase was steady and sustained over the decade. In comparison, rural and urban non-teaching hospitals showed a much smaller improvement in utilisation. Conclusion: Utilisation of hemicraniectomy in the USA has increased significantly, in line with compelling results from European clinical trials. Early transfer of patients with malignant infarctions to urban teaching centres could potentially extend the survival benefit to a larger population.",
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