Abstract
Background
Progressive hemorrhagic injury (PHI) is a common occurrence in clinical practice; however, how PHI affects clinical management remains unclear. We attempt to evaluate the characteristics and risk factors of PHI and also investigate how PHI influences clinical management in traumatic intracerebral hemorrhage (TICH) patients.
Methods
This retrospective study included a cohort of 181 patients with TICH who initially underwent conservative treatment and they were dichotomized into a PHI group and a non-PHI group. Clinical data were reviewed for comparison. Multivariate logistic regression analysis was applied to identify predictors of PHI and delayed operation.
Results
Overall, 68 patients (37.6%) experienced PHI and 27 (14.9%) patients required delayed surgery. In the PHI group, 17 patients needed late operation; in the non-PHI group, 10 patients received decompressive craniectomy. Compared to patients with non-PHI, the PHI group was more likely to require late operation (P = 0.005, 25.0 vs 8.8%), which took place within 48 h (P = 0.01, 70.6 vs 30%). Multivariate logistic regression identified past medical history of hypertension (odds ratio [OR] = 4.56; 95% confidence interval [CI] = 2.04–10.45), elevated international normalized ratio (INR) (OR = 20.93; 95% CI 7.72–71.73) and linear bone fracture (OR = 2.11; 95% CI = 1.15–3.91) as independent risk factors for PHI. Hematoma volume of initial CT scan >5 mL (OR = 3.80; 95% CI = 1.79–8.44), linear bone fracture (OR = 3.21; 95% CI = 1.47–7.53) and PHI (OR = 3.49; 95% CI = 1.63–7.77) were found to be independently associated with delayed operation.
Conclusions
Past medical history of hypertension, elevated INR and linear bone fracture were predictors for PHI. Additionally, the latter was strongly predictive of delayed operation in the studied cohort.
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The Science and Technology Department of Hubei Province provided financial support in the form of Natural Science Foundation of Hubei, China (No. 2014CFB151) funding, and the National Health and Family Planning Commission of the People’s Republic of China provided financial support in the form of the National Clinical Key Specialty Construction Project. The sponsor had no role in the design or conduct of this research.
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All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study formal consent is not required.
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Informed consent was obtained from all individual participants included in the study.
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Comments
I read with interest the manuscript by Wan et al. entitled “Progressive hemorrhagic injury in patients with traumatic intracerebral hemorrhage: characteristics, risk factors and impact on management”. The authors present a cohort of 181 traumatic brain injury (TBI) patients suffering from cerebral contusions. They study associations between hematoma progression and delayed surgical intervention with admission parameters and find that history of hypertension, elevated INR and linear bone fracture were predictors for progressive hemorrhage, and the latter a strong predictor of a delayed surgery.
While several previous studies analysed a similar cohorts and reach similar conclusion as to what constitutes risk factors for progressing hemorrhages, such as Chang et al. (2006) and Oertel et al. (2002), which are both mentioned by the authors, the current manuscript presents a cohort with a relatively homogeneous injury (isolated cerebral contusions) and present a more extensive laboratory testing including fibrinogen. It is important to replicate previous findings, further stressing the need to better monitor and care for patients with progressing intracranial hemorrhage. However, this study also tries to determine what parameters are related to a secondary surgical intervention. While it is tempting, I do find it difficult to assess this type of intervention in a retrospective cohort where the decision by the individual surgeon is based on a multitude of factors which are difficult to retrospectively assess, introducing several types of biases. Instead, a prospective trial with a protocol is necessary to address the question of what the strongest predictors of delayed surgical intervention are. Moreover, in many western countries, we adhere to guidelines set forth by the Brain Trauma Foundation, stating that intracranial monitoring should be used as a tool for clinical decision making. While the authors mention that they measure intracranial pressure, it would be of interest to see how the parameters monitored in real time differed between the groups that did, and did not, need delayed surgery as this could perhaps in the future provide even swifter intervention to those who really need it.
Eric Thelin
Stockholm, Sweden
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Wan, X., Fan, T., Wang, S. et al. Progressive hemorrhagic injury in patients with traumatic intracerebral hemorrhage: characteristics, risk factors and impact on management. Acta Neurochir 159, 227–235 (2017). https://doi.org/10.1007/s00701-016-3043-6
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DOI: https://doi.org/10.1007/s00701-016-3043-6