Abstract
Background
Decompressive craniectomy (DC) has been shown to be an effective treatment for malignant cerebral infarction (MCI). There are limited nationwide studies evaluating outcome after craniectomy for MCI.
Objective
To describe the evolution in DC practices for MCI, long-term survival, and associated prognostic factors.
Methods
We searched the French medico-administrative national database to retrieve patients who underwent DC between 2008 and 2017.
Results
A total of 1841 cases of DC were performed over 10 years in 51 centers. Mean age at procedure was 50.9 years, 18% were above 60 years, and 64.4% were male. There was a significant increase in DC for MCI over the 10 years (p < 0.001), and the annual volume of procedures more than doubled (95/year vs. 243/year). Early survival at one week and one month was 86%, 95%CI (84.5, 87.6) and 79.7%, 95%CI (77.8, 81.5), respectively. Long-term survival at 1 and 5 years were 73.6%, 95%CI (71.6, 75.7) and 68.9%, 95%CI (66.5, 71.4), respectively. Patients below 60 years at the time of DC (HR = 0.5; 95%CI [0.4, 0.7], p < 0.001), DC being performed in a center with a high surgical activity (HR = 0.8; 95%CI [0.6, 0.9], p = 0.002), and the patients having unimpaired consciousness (HR = 0.6; 95%CI [0.5, 0.8], p < 0.001) were associated with increased survival in both univariate and adjusted Cox regressions. 18.7% of the survivors had a cranioplasty inserted within 3 months and 57.8% within 6 months. The probability of having a cranioplasty at one year was 75.6%, 95%CI (77.9, 73.1).
Conclusion
Over the past 10 years in France, DC has been increasingly performed for MCI regardless of age. However, in-hospital mortality remains considerable, as about one quarter of patients died within the first weeks. For those who survive beyond 6 months, the risk of death significantly decreases. Early mortality is especially high for comatose patients above 60 years operated in inexperienced centers. Most of those who remain in good functional status tend to undergo a cranioplasty within the year following DC.
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Abbreviations
- CCAM:
-
Common classification of medical acts
- CI:
-
Confidence interval
- DC:
-
Decompressive craniectomy
- GCS:
-
Glasgow Coma Scale
- HDH:
-
Health data hub
- HR:
-
Hazard ratio
- IQR:
-
Interquartile range
- IS:
-
Ischemic stroke
- MCA:
-
Middle cerebral artery
- MCI:
-
Malignant cerebral infarction
- mRS:
-
Modified Rankin scale
- PMSI:
-
Programme de médicalisation des systèmes d’information
- OS:
-
Overall survival
- SNDS:
-
Système national des données de santé
- WHO:
-
World Health Organization
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Acknowledgments
The authors thank Rebecca Grant for her review of the manuscript.
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This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.
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CC Conceived and designed the analysis/ Performed the analysis/ Draft the manuscript/ Revision of the work. JW Conceived and designed the analysis/ Collected the data/ Performed the analysis/ Revision of the work.
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This study was approved by French data protection authority (CNIL), an independent national ethical committee, authorisation number: 2213957v0.
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Champeaux, C., Weller, J. Long-Term Survival After Decompressive Craniectomy for Malignant Brain Infarction: A 10-Year Nationwide Study. Neurocrit Care 32, 522–531 (2020). https://doi.org/10.1007/s12028-019-00774-9
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DOI: https://doi.org/10.1007/s12028-019-00774-9