Letter to the Editor: “Headache After Sealing of Cerebrospinal Fluid Leaks in Patients With Spontaneous Intracranial Hypotension”

I recently read the article titled “Headache After Sealing of Cerebrospinal Fluid Leaks in Patients With Spontaneous Intracranial Hypotension” published in European Journal of Neurology [1]. I commend the authors for their important work in investigating the long-term outcomes of patients with persistent headache following the sealing of cerebrospinal fluid (CSF) leaks. However, I would like to suggest a few considerations that could strengthen the study's findings. The study mentions the correlation between various clinical features and persistent headaches, but does not perform a more detailed regression analysis to better control for potential confounding factors [2]. A more robust statistical analysis could help identify the most significant predictors of persistent headaches and improve the interpretability of the results. Additionally, the article highlights the occurrence of recurrent or new CSF leaks in some patients, which suggests a possible risk of missed diagnoses or recurrence. A comparison of the characteristics of these patients with those who did not experience recurrence could help identify potential risk factors for such leaks [3]. Lastly, as this is an observational study without a control group or randomization, the findings may be influenced by selection bias. The absence of a control group makes it challenging to attribute changes in headache outcomes directly to the sealing treatment, as other factors such as treatment delays or coexisting conditions may also play a role [4]. In conclusion, while the study provides valuable insights, addressing these statistical aspects in future research could enhance the understanding of persistent headaches in SIH patients and guide clinical practice more effectively. Yixin Fu: conceptualization, writing – original draft. Jianghao Yu: conducted a literature review and reference validation. Qingshan Deng: supervised the commentary, finalized recommendations and manuscript as corresponding author. The authors declare no conflicts of interest. This article is linked to Scutelnic et al. papers. To view this article, visit https://doi.org/10.1111/ene.70431 and Nizami and Irshad papers. To view this article, visit https://doi.org/10.1111/ene.70436. The authors have nothing to report.