Pediatric Sympathetic Paraganglioma: Refractory Hypertension After Alpha-Adrenergic Blockade

This protocol applies to a child or adolescent with localized, resectable sympathetic paraganglioma in whom standard preoperative alpha-adrenergic blockade has not achieved adequate blood pressure control before surgery.

Patient Scenario

Child or adolescent with localized, resectable adrenal or extra-adrenal sympathetic paraganglioma — no metastatic or unresectable disease. Surgical resection is the primary curative approach in this population.

Previous Treatment — Goal Not Reached

Preoperative alpha-adrenergic blockade (phenoxybenzamine or a selective alpha-1 blocker such as doxazosin), with beta-blockers introduced only after alpha blockade was established, plus volume expansion, was initiated but did not achieve the target: mild orthostatic hypotension indicating adequate alpha-blockade while maintaining tolerable supine blood pressure. Hypertension remains refractory, triggering escalation to this protocol.

Next-Step Approach — Partial Overview

In selected cases with persistent refractory hypertension, a calcium channel blocker may be considered as an adjunct. The complete protocol specifies the full approach, including which agents apply and under what circumstances.

Instant Access to Structured Evidence-Based Regimens

References

Surgical resection is the mainstay of curative treatment for localized pediatric PGL.
Calcium channel blockers (eg, nicardipine) or methyltyrosine (if available) may be used in selected cases with refractory hypertension, although pediatric-specific evidence is limited.

DOI: 10.1093/ejendo/lvaf239

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