Neurology India Medknow Publications on behalf of the Neurological Society of India ISSN: 0028-3886 EISSN: 1998-4022 Vol. 58, Num. 6, 2010, pp. 981-981

Neurology India, Vol. 58, No. 6, November-December, 2010, pp. 981

Correspondence

Authors' reply

R Lath, S Kumar, R Reddy, GR Boola, A Ray, S Prabhakar, A Ranjan

Stroke Unit, Institute of Neurosciences, Apollo Health City, Hyderabad - 500 033, India

Correspondence Address:
S Kumar
Stroke Unit, Institute of Neurosciences, Apollo Health City, Hyderabad - 500 033
India
drsudhirkumar@yahoo.com

Code Number: ni10286

We thank Dr. Takeuchi for his comments on our publication "decompressive surgery for severe cerebral venous sinus thrombosis (CVST)". ^[1] We would like to point out that formation of collateral venous systems is more likely to occur in cases of chronic CVST, as compared to acute CVST. On the other hand, raised intracranial tension requiring decompression surgery is more likely to happen in cases with acute CVST. Also, the decompressive surgery involves surgical removal of the skull bone, and as such the risk of injury to dural collateral veins is minimal. However, if the surgery involves removal of the intracerebral hematoma, then the risk of injury to dural veins remains. We agree with Dr. Takeuchi that cerebral angiography may be done in selected cases, such as chronic CVST to ascertain the extent of collateral venous system formation. We also recommend detailed analysis of collateral venous system on the magnetic resonance venography.

References

1.	Lath R, Kumar S, Reddy R, Boola GR, Ray A, Prabhakar S, et al. Decompressive surgery for severe cerebral venous sinus thrombosis. Neurol India 2010;58:392-7.  Back to cited text no. 1  [PUBMED]

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