Journal article
Outcomes of interfacility helicopter transportation in acute stroke care
Neurology. Clinical practice, Vol.10(5), pp.10-427
09/17/2019
DOI: 10.1212/CPJ.0000000000000737
PMCID: PMC7717633
PMID: 33299670
Abstract
Objective To evaluate the long-term functional outcome of interhospital transfer of patients with stroke with suspected large vessel occlusion (LVO) using Helicopter Emergency Medical Services (HEMS).
Methods Records of consecutive patients evaluated through 2 telestroke networks and transferred to thrombectomy-capable stroke centers between March 2017 and March 2018 were reviewed. Inverse probability of treatment weighting (IPTW) using the propensity score was performed to address confounding factors. Multivariate logistic regression analysis with IPTW was used to determine whether HEMS were associated with good long-term functional outcome (modified Rankin scale score ≤ 2).
Results A total of 199 patients were included; median age was 67 years (interquartile range [IQR] 55–79 years), 90 (45.2%) were female, 120 (60.3%) were white, and 100 (50.3%) were transferred by HEMS. No significant differences between the 2 groups were found in mean age, sex, race, IV tissue plasminogen activator (tPA) receipt, and thrombectomy receipt. The median baseline NIH Stroke Scale score was 14 (IQR 9–18) in the helicopter group vs 11 (IQR 6–18) for patients transferred by ground (p = 0.039). The median transportation time was 60 minutes (IQR 49–70 minutes) by HEMS and 84 minutes (IQR 25–102 minutes) by ground (p < 0.001). After weighting baseline characteristics, the use of HEMS was associated with higher odds of good long-term outcome (OR 4.738, 95% CI 2.15–10.444, p < 0.001) controlling for transportation time, door-in-door-out time, and thrombectomy and tPA receipt. The magnitude of the HEMS effect was larger in thrombectomy patients who had successful recanalization (OR 1.758, 95% CI 1.178–2.512, p = 0.027).
Conclusions HEMS use was associated with better long-term functional outcome in patients with suspected LVO, independently of transportation time.
Details
- Title: Subtitle
- Outcomes of interfacility helicopter transportation in acute stroke care
- Creators
- Eyad AlmallouhiSami Al KasabMichael NahhasJillian B HarveyJuanita CaudillNancy TurnerEllen DebenhamDan-Victor GiurgiutiuEnrique C LeiraJeffrey A SwitzerChristine A Holmstedt
- Resource Type
- Journal article
- Publication Details
- Neurology. Clinical practice, Vol.10(5), pp.10-427
- DOI
- 10.1212/CPJ.0000000000000737
- PMID
- 33299670
- PMCID
- PMC7717633
- ISSN
- 2163-0402
- eISSN
- 2163-0933
- Language
- English
- Date published
- 09/17/2019
- Academic Unit
- Neurology; Epidemiology; Iowa Neuroscience Institute; Neurosurgery
- Record Identifier
- 9984071704702771
Metrics
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