30-Second Takeaway
- WBRT after brain met resection improves local and intracranial control without survival or clear cognitive benefit.
- Older adults after cSDH surgery have sustained excess mortality and reduced long-term functioning versus population peers.
- Edema-corrected CST DTI and DAH30 offer practical tools for prognostication and quality benchmarking.
- Seizures after acute SDH nearly double mortality, supporting systematic monitoring and aggressive treatment pathways.
- Radial-first access, image-guided DBS, LITT timing, and CSF liquid biopsy can refine procedural strategy and oncologic management.
Week ending April 18, 2026
Sharper risk–benefit counseling and outcome targeting across neurosurgical oncology and vascular practice
WBRT improves local and intracranial control after resected brain mets without survival gain
This systematic review included seven RCTs with 812 patients after resection of 1–4 brain metastases. WBRT improved surgical bed control versus observation and SRS, with pooled odds ratios favoring WBRT. WBRT also improved overall intracranial control compared with observation and SRS, again with modest effect sizes. However, there were no significant differences in overall survival or cognitive decline between WBRT, SRS, and observation. Evidence certainty ranged from very low to moderate, leaving optimal adjuvant choice uncertain and highly preference-sensitive.
cSDH surgery patients show long-term excess mortality versus population controls
This single-center cohort followed 359 adults after cSDH surgery for roughly 10 years. Compared with age- and sex-matched population controls, patients had about double overall mortality risk, with a hazard ratio of 2.02. Survival gaps persisted and widened at 1, 5, and 10 years, indicating sustained excess mortality. Among survivors, health-related quality of life, including cognitive domains, was assessed against European reference values. Results suggest that even when early recovery appears good, patients remain vulnerable and may benefit from structured long-term follow-up.
Edema-corrected CST integrity enhances outcome prediction after minimally invasive ICH evacuation
This retrospective single-center study analyzed 60 patients undergoing minimally invasive ICH evacuation with postoperative diffusion MRI. Corticospinal tract damage was quantified using edema-corrected ipsilesional-to-contralesional FA ratios derived from automated tractography. Lower edema-corrected FA ratios independently predicted worse 90-day mRS and worse NIHSS motor subscores. The prognostic signal was stronger than uncorrected metrics and was greatest when MRI was obtained within one postoperative week. Incorporating edema-corrected CST integrity improved outcome prediction beyond the ICH score, informing rehabilitation intensity and counseling.
Multimodal imaging helps identify optimal STN-DBS contacts for motor benefit
This study used data from 236 Parkinson’s patients with 604 stimulation sites to build an imaging-guided STN-DBS model. The model combined contact coordinates, electric fields, tract activation, and structural and functional connectivity using ridge regression. In unseen group-level data, imaging features explained about 12% of motor improvement variance. At the individual level, the model identified the clinically optimal or neighboring contact in nearly all cases. These results support using multimodal imaging as a programming adjunct to shorten testing and refine DBS targeting.
References
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Additional Reads
Optional additional studies from this edition.