Critical Appraisals

ENRICH is the strongest recent surgical ICH trial signal, but it is not a blanket green light for every hemorrhage. The benefit appears to come mainly from early minimally invasive evacuation of lobar bleeds, so the right takeaway is targeted adoption, not indiscriminate surgery.

This TOBAS registry report highlights that AVM embolization often did not achieve complete cure and carried substantial hemorrhagic risk. It supports careful case selection and preference for trial-based care when available.

This 2013 guideline review outlines a stepwise approach to iNPH diagnosis: comprehensive clinical evaluation, treatment of comorbidities, then specific CSF drainage testing. It emphasizes that gait impairment is nearly universal, and properly performed tap tests (30-50 mL removal with pre/post assessment) have high positive predictive value. All symptoms including dementia may improve with shunting in selected patients.

This RCT in South America found no difference in 6-month functional/cognitive outcomes between ICP monitoring and imaging/clinical exam-based management for severe TBI. Mortality and ICU length of stay were similar. The study challenges the universal necessity of ICP monitoring, suggesting protocolized care without monitoring may be equally effective in certain settings.

Primary spine tumors require multidisciplinary management at specialized centers. En bloc resection with appropriate margins (Enneking principles) remains standard for most tumors, associated with better local control and survival. Emerging options include denosumab for GCTs, percutaneous ablation for osteoid osteomas, and advanced radiation techniques for chordomas. Treatment decisions must balance oncologic control with morbidity and quality of life.

This trial is straightforward: adding fusion to decompression for lumbar spinal stenosis did not improve disability or walking outcomes, but it did make surgery bigger, longer, and more expensive. Unless a patient has a separate structural reason to need fusion, decompression alone should usually remain the default.

This meta-analysis suggests that awake craniotomy may improve survival, extent of resection, and 3-month neurologic outcomes for selected patients with high-grade glioma, especially in eloquent areas. The catch is that most of the signal comes from observational studies, so read the paper as supportive rather than definitive proof.

This consecutive 230-patient vestibular schwannoma microsurgery series says that hearing-preservation surgery can work well in experienced hands, but timing matters. Overall hearing preservation was 61%, it rose to 72% when tumors were 10 mm or smaller, and facial nerve outcomes remained excellent. The result is useful for counseling patients already leaning toward surgery, but it does not compare surgery with observation or radiosurgery.

This RCT compared early surgery versus continued meds for MTLE within 2 years of drug failure. Surgery yielded 73% seizure freedom at 2 years vs 0% with meds alone (p<0.001). Quality of life improved more with surgery in sensitivity analysis. The trial was stopped early (n=38 vs planned 200), so results are promising but require cautious interpretation due to limited power.

This UK multicenter RCT compared DBS plus medical therapy versus medical therapy alone in 366 advanced Parkinson's patients. At 1 year, DBS improved PDQ-39 quality of life scores by 4.7 points more than medical therapy alone, with significant benefits in mobility, ADL, and bodily discomfort domains. However, 19% had serious surgery-related adverse events including one death. DBS provides meaningful quality of life improvement but requires careful patient selection given surgical risks.