Priority | Definition | Procedure |
Priority 1(immediate or within 24 h) | Immediate: Acute life-threatening condition that needs immediate attention* | Trauma: |
• Acute TBI with EDH or SDH requiring surgery | ||
• Elevated ICP that cannot be controlled by medical/critical care | ||
• Insertion of an EVD or ICP monitoring for patients with severe injuries | ||
Within 24 h: Loss of life or significant function that can be saved by intervention within 24 h | • Chronic SDH associated with neurological deficits | |
• Open depressed skull fracture | ||
Spine: | ||
• Acute progressive neurologic deficits caused by trauma, tumor, infection, and other compressive pathologies interfering with the ability to perform activities of daily living | ||
Oncology: | ||
• All intracranial tumours affecting consciousness or causing hemodynamic instability due to increased intracranial pressure, hydrocephalus, or herniation * | ||
• Tumors causing acute vision loss caused due to optic nerve/chiasm compression | ||
Vascular: | ||
• Acute stroke thrombectomy* | ||
• Coiling or clipping of a ruptured saccular aneurysm with subarachnoid hemorrhage | ||
• Craniotomy or embolization of a ruptured AVM with pre-nidal/nidal aneurysms | ||
• Decompressive craniectomy or hematoma evacuation* | ||
Pediatrics: | ||
• Patients with acute high ICP caused by hydrocephalus or mass effect | ||
• Shunt malfunction/infection | ||
• Open neural tube defect (encephalocele, myelomeningocele) ** | ||
Infections: | ||
• Symptomatic intracranial or implant infections | ||
Functional and epilepsy: | ||
• Implant replacement [intrathecal baclofen pump (ITP), vagal nerve stimulation (VNS) and implanted pulse generator (IPG)] due to malfunction, infection, or non-functioning devices, when associated with symptoms or signs of therapy/medications’ debridement | ||
Peripheral nerve: | ||
• Nerve repair for open sharp cut (clean) nerve injuries | ||
• Debridement and nerve tagging for open contaminated nerve injuries | ||
Priority 2(within 1 week) | Life or significant functional loss that can be saved by intervention within 1 week. | Spine: |
• Subacute progressive neurologic deficit (developed over few weeks) due to degeneration, trauma, or tumors | ||
• Spinal instability without neurologic deficit due to trauma, tumor, or infection | ||
• Suspected cancer or infection that needs biopsy or resection | ||
Oncology: | ||
• High grade primary brain tumors | ||
• Resection or biopsy for metastatic brain lesions | ||
• All intracranial brain tumors causing acute or subacute progressive neurological deficits and/or aggressive radiological features | ||
Vascular: | ||
• Complex ruptured intracranial aneurysm requiring special preparation or equipment | ||
Functional and epilepsy surgery: | ||
• Hardware replacement (ITP, VNS, and IPG) due to infection or malfunctioning or non-functioning devices, not associated with symptoms or signs of therapy or medications’ debridement | ||
Peripheral nerve surgery: | ||
• Malignant peripheral nerve sheet tumor | ||
Priority 3(from 1 to 4 weeks) | Life or significant functional loss that can be saved by intervention within 1 month. | Spine: |
• Higher (worsening) chronic neurologic deficit or spinal instability (developed over few weeks) caused by degeneration, trauma, or tumors | ||
Oncology: | ||
• Newly diagnosed low-grade primary brain tumors | ||
• Intracranial tumors with slowly progressive symptoms related to mass effect and/or radiological growth | ||
Vascular: | ||
• Ruptured AVM with no nidal aneurysms | ||
• High grade dural AV fistulae with ICH | ||
• Carotid revascularization (endarterectomy or stenting) for symptomatic carotid stenosis | ||
Pediatrics: | ||
• Hydrocephalus with chronically elevated ICP | ||
• Craniosynostosis with evidence of high ICP | ||
Functional and epilepsy surgery: | ||
• Medically intractable severe epilepsy requiring urgent surgical intervention | ||
• Elective replacement of implants (ITP, VNS, and IPG) | ||
Priority 4(More than 1 month) | Cases where life or significant function would not be affected by waiting for more than 4 weeks | • Any neurosurgical procedure that can be delayed for more than 1 month |
• The patient’s condition requires re-evaluation on a regular basis and the priority will change depending on the change in the condition | ||
↵* Patients must be treated as soon as possible,
↵** Patients can be treated up to/within 48 h
AVM - arteriovenous malformation
AV–arteriovenous
EDH - epidural hematoma
EVD - external ventricular drain
ICH - intracranial hemorrhage
ICP - intracranial pressure
SDH - subdural hematoma
TBI - traumatic brain injury