Treatment
The mainstay of emergency treatment has always been potassium replacement, however not all patients respond to potassium alone and evidence suggests that combining potassium and propranolol is a more effective therapy, with KCl 10 mEq/h iv and/or KCl 2 g every 2 h, orally, monitoring serum K+ level, to avoid rebound hyperkalemia plus Propranolol 3–4 mg/kg, orally.
Because THKPP patients may develop rebound hyperkalemia K+ replacement therapy should be cautious and should not exceed 90 mEq of KCl per 24 hours unless there is a reason for K+ loss, such as diarrhea, vomiting or diuretic use.
In the Manoukian study (19 patients) all patients remained attack free as long as they took methimazole and propranolol hydrochloride or after radioiodine 131 treatment. Eighteen patients were eventually treated with radioiodine 131 therapy. None of the patients had paralytic episodes after a euthyroid state was achieved.
Nonselective beta-blockers such as propranolol may be useful to prevent attacks of paralysis once patients begin taking antithyroid medications but are not yet euthyroid.
TreatmentThe mainstay of emergency treatment has always been potassium replacement, however not all patients respond to potassium alone and evidence suggests that combining potassium and propranolol is a more effective therapy, with KCl 10 mEq/h iv and/or KCl 2 g every 2 h, orally, monitoring serum K+ level, to avoid rebound hyperkalemia plus Propranolol 3–4 mg/kg, orally. Because THKPP patients may develop rebound hyperkalemia K+ replacement therapy should be cautious and should not exceed 90 mEq of KCl per 24 hours unless there is a reason for K+ loss, such as diarrhea, vomiting or diuretic use.In the Manoukian study (19 patients) all patients remained attack free as long as they took methimazole and propranolol hydrochloride or after radioiodine 131 treatment. Eighteen patients were eventually treated with radioiodine 131 therapy. None of the patients had paralytic episodes after a euthyroid state was achieved.Nonselective beta-blockers such as propranolol may be useful to prevent attacks of paralysis once patients begin taking antithyroid medications but are not yet euthyroid.
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