Temporal Lobe Brain Tumor Resection: Prognosis, Risks, and Recovery

Prognostic Factors

• Tumor type (glioma, meningioma, metastasis), grade, molecular markers
• Size, depth, eloquence (language, memory, vision pathways)
• Patient age, performance status, comorbidities
• Extent of resection (gross total vs. subtotal)
• Surgeon experience and technology (navigation, awake mapping, intraoperative MRI)

Expected Outcomes

• Gross total resection achievable in many cases; improves survival for malignant tumors.
• Seizure freedom rates: 60–80% for temporal lobe epilepsy surgery.
• Neurologic deficits (transient or permanent): language (dominant hemisphere), memory, visual field (Meyer's loop), motor.

Key Risks

• Neurologic deficit (aphasia, memory impairment, quadrantanopia)
• Seizure persistence or new onset
• Infection (meningitis, abscess) ~1–2%
• Hemorrhage/hematoma requiring reoperation
• CSF leak, hydrocephalus
• Mortality: <1–2% in high-volume centers

Recovery

• ICU 1–2 days; floor 3–5 days.
• Steroids taper (if used for edema).
• Antiseizure meds continued.
• Rehab (speech, OT, PT) as needed.
• Follow-up MRI at 3 months, then per protocol.

Multidisciplinary tumor board review is standard before surgery.