Parathyroid Carcinoma with Altered Mental Status in Hypercalcemic Crisis (Parathyrotoxicosis)
Parathyrotoxicosis — also called hypercalcemic crisis, parathyroid storm, or acute hyperparathyroidism — is a medical emergency that can complicate parathyroid carcinoma and requires prompt, structured intervention.
Medical Emergency
Clinical Scenario
This protocol addresses parathyroid carcinoma presenting with parathyrotoxicosis: altered mental status and profound weakness in the setting of severe hypercalcemia (>16 mg/dL) and azotemia. The combination of neurological involvement and marked renal impairment defines a particularly high-acuity presentation requiring urgent intervention.
Treatment Approach (partial overview)
Management begins with aggressive intravenous fluid resuscitation to restore intravascular volume and promote renal diuresis; further targeted calcium-lowering measures and, in selected patients, renal support are part of the complete protocol.
Treatment Goal
Reduction of serum calcium by 1.5–4 mg/dL within 24 to 48 hours.
References
DOI: 10.1007/s11864-011-0171-3
- Parathyrotoxicosis (also referred to as hypercalcemic crisis, parathyroid storm, acute hyperparathyroidism, or parathyroid poisoning) is a medical emergency.
- Patients in this acute state can exhibit altered mental status and profound weakness, accompanied by hypercalcemia (9–16 mg/dL) and azotemia.
- Aggressive fluid resuscitation with intravenous isotonic sodium chloride fluid infusion is the first line therapy in order to restore intravascular volume and to promote renal diuresis.
- After restoration of intravascular space as evidenced by adequate urine output, furosemide is given to promote calcium diuresis.
- Hemodialysis may be required in patients with renal insufficiency or renal failure.
- Goal reduction of serum calcium is by 1.5–4 mg/dL in 24 to 48 h.
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