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letter
. 2024 Mar 8;20(1):75–76. doi: 10.13004/kjnt.2024.20.e6

Letter to the Editor: Commentary on Predictor of the Postoperative Swelling After Craniotomy for Spontaneous Intracerebral Hemorrhage: Sphericity Index as a Novel Parameter (Korean J Neurotrauma 2023;19:333-347)

Min Ho Lee 1,
PMCID: PMC10990695  PMID: 38576505

In this study, the authors predicted postoperative edema based on the shape of the hematoma.3) The sphericity index was retrospectively calculated in 56 cases of spontaneous intracerebral hemorrhage, and the authors ultimately concluded that that the closer the postoperative swelling is to the round, the more severe it is. Thus, the shape of the hematoma affecting postoperative swelling is unique and excellent. Conversely, previous studies have predicted postoperative edema by focusing on hematoma size of the hematoma.7)

Edema developing late after intracerebral hemorrhage surgery is a major cause of poor patient prognosis.5,7) Surgeons may need to perform decompressive craniectomy or attempt aggressive medical treatments, such as barbiturate coma therapy, to resolve this problem.4,6) Therefore, if it were possible to predict whether edema will worsen in advance, based only on the shape of the hematoma, it may be possible to prevent secondary injury caused by edema by performing decompressive craniectomy before worsening. Further, for patients with a low risk of edema, minimally invasive surgery may be performed more safely.1,7) The resulting concentration of medical resources would also result in a reduction in overall expenditures.

In this study, the authors hypothesized that a rounder hematoma harbors higher internal pressure than an elongated hematoma. As a follow-up study, we recommend that the authors attempt to find a method to measure this. As the authors pointed out, the small number of samples and the high heterogeneity of patients are limitations of this study. Recently, with the development of artificial intelligence, various prediction models have been developed.2) As such, there is a need to prove the above using more data in the future. This would require a large amount of data, and this is believed to be the direction in which the Korean Neurotraumatology Society will move.

Footnotes

Conflict of Interest: The author has no financial conflicts of interest.

References

  • 1.Ali M, Zhang X, Ascanio LC, Troiani Z, Smith C, Dangayach NS, et al. Long-term functional independence after minimally invasive endoscopic intracerebral hemorrhage evacuation. J Neurosurg. 2022;138:154–164. doi: 10.3171/2022.3.JNS22286. [DOI] [PubMed] [Google Scholar]
  • 2.Chen Y, Jiang C, Chang J, Qin C, Zhang Q, Ye Z, et al. An artificial intelligence-based prognostic prediction model for hemorrhagic stroke. Eur J Radiol. 2023;167:111081. doi: 10.1016/j.ejrad.2023.111081. [DOI] [PubMed] [Google Scholar]
  • 3.Choi JH, Yoon WK, Kim JH, Kwon TH, Byun J. Predictor of the postoperative swelling after craniotomy for spontaneous intracerebral hemorrhage: sphericity index as a novel parameter. Korean J Neurotrauma. 2023;19:333–347. doi: 10.13004/kjnt.2023.19.e41. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 4.Kim JH, Choo YH, Jeong H, Kim M, Ha EJ, Oh J, et al. Recent updates on controversies in decompressive craniectomy and cranioplasty: physiological effect, indication, complication, and management. Korean J Neurotrauma. 2023;19:128–148. doi: 10.13004/kjnt.2023.19.e24. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 5.Marchina S, Trevino-Calderon JA, Hassani S, Massaro JM, Lioutas VA, Carvalho F, et al. Perihematomal edema and clinical outcome after intracerebral hemorrhage: a systematic review and meta-analysis. Neurocrit Care. 2022;37:351–362. doi: 10.1007/s12028-022-01512-4. [DOI] [PubMed] [Google Scholar]
  • 6.Oh HJ, Kim KH, Kim YI, Seo Y, Choi KS, Lee MH, et al. Neurotrauma clinical practice guidelines committee of the Korean Neurotraumatology Society: a review of a group that writes and inherits the thoughts and will of the society. Korean J Neurotrauma. 2022;18:3–11. doi: 10.13004/kjnt.2022.18.e22. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 7.Wu X, Liu H, Zhang R, Du Y, Cai Y, Tan Z, et al. Prognostic significance of perihematomal edema in basal ganglia hemorrhage after minimally invasive endoscopic evacuation. J Neurosurg. 2023;139:1784–1791. doi: 10.3171/2023.4.JNS222910. [DOI] [PubMed] [Google Scholar]

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