Use of QVAR with a spacer device in children less than 5 years of age is not recommended. In vitro dose characterization studies were performed with QVAR 40 mcg/actuation with the OptiChamber and AeroChamber Plus ® spacer utilizing inspiratory flows representative of children under 5 years old. These studies indicated that the amount of medication delivered through the spacing device decreased rapidly with increasing wait times of 5 to 10 seconds as shown in Table 2. If QVAR is used with a spacer device, it is important to inhale immediately.
Thyroid storm is a life-threatening condition of the hyperthyroid state. 26 It most commonly occurs in patients with Graves' disease but may also occur in those with multinodular goiter or toxic adenoma. 27 It is treated by correcting the hyperthyroidism and treating the precipitating events. 26 Correction of the hyperthyroid state involves using drugs such as propylthiouracil or methimazole (Tapazole), beta blockers or corticosteroids, which decrease the peripheral effects of thyroid hormone and the conversion of thyroxine (T 4 ) to the more potent triiodothyronine (T 3 ). 22 , 26 Dexamethasone can be used for that purpose, at a dosage of 2 mg intravenously every six hours, and can eventually can be switched to an oral dosage of 2 mg every six hours. 28
30 mg/kg/dose (Max: 1 gram/dose) IV or IM once daily for 1 to 3 days. High-dose pulse steroids may be considered as an alternative to a second infusion of IVIG or for retreatment of patients who have had recurrent or recrudescent fever after additional IVIG, but should not be used as routine primary therapy with IVIG in patients with Kawasaki disease. Corticosteroid treatment has been shown to shorten the duration of fever in patients with IVIG-refractory Kawasaki disease or patients at high risk for IVIG-refractory disease. A reduction in the frequency and severity of coronary artery lesions has also been reported with pulse dose methylprednisolone treatment.