Clinical Scorecard: Awake Craniotomy for Resection of Brain Tumors in Geriatric Patients: Insights from a Clinical Institution

At a Glance

Key Highlights

• Incidence of CNS tumors increases with age, reaching 98.22 per 100,000 in those 85 years or older.
• Awake craniotomy improves extent of resection, progression-free survival, and overall survival compared to surgery under general anesthesia.
• Functional status assessment using ASA, Karnofsky Performance Status, and modified Frailty Index is critical for patient selection and outcome prediction.

Guideline-Based Recommendations

Diagnosis

• Use ASA physical status classification, Karnofsky Performance Status (KPS), and modified 11-factor Frailty Index (mFI-11) to assess functional status and frailty preoperatively.
• Employ cortical and subcortical mapping with electromyography, somatosensory evoked potentials, and motor evoked potentials during surgery for safe tumor resection.

Management

• Perform awake craniotomy using asleep-awake-asleep anesthesia protocol to maximize tumor resection while preserving neurological function.
• Consider patient comorbidities and functional status to determine appropriateness of surgery versus alternative treatments like stereotactic radiosurgery or chemotherapy.

Monitoring & Follow-up

• Monitor for neurosurgical complications such as hemorrhage, CSF leak, and wound infection postoperatively.
• Assess for new or worsened neurological deficits including motor, sensory, speech, or cognitive impairments at discharge.
• Track hospital length of stay, discharge disposition, and 30-day all-cause and neurosurgical readmissions.

Risks

• Age-related comorbidities may increase risk of perioperative complications and slower healing.
• Potential for new or worsened neurological deficits despite intraoperative monitoring.
• Extended ICU and hospital stays may impact quality of life in elderly patients.

Patient & Prescribing Data

Elderly patients aged 75 years or older undergoing awake craniotomy for brain tumor resection.

Most elderly patients tolerate awake craniotomy well with favorable patient-reported experiences; careful preoperative assessment predicts surgical success and functional outcomes.

Clinical Best Practices

• Perform thorough preoperative functional and frailty assessments using ASA, KPS, and mFI-11 to guide patient selection.
• Use asleep-awake-asleep anesthesia protocol with intraoperative neurological monitoring to optimize extent of tumor resection and preserve function.
• Engage in shared decision-making with patients and families focusing on quality of life, balancing functional status and survival benefits.
• Monitor closely for postoperative complications and neurological deficits to enable timely interventions.
• Consider discharge disposition and plan for rehabilitation or supportive care tailored to geriatric patient needs.

References

• Incidence of CNS tumors in elderly
• Challenges in neuro-oncological surgery in elderly
• Benefits of awake craniotomy
• Functional status assessment tools
• Intraoperative monitoring techniques