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Overt glucocorticoid excess due to inhaled corticosteroid therapy.

Inhaled corticosteroids have become an important therapeutic option in the treatment of childhood asthma. The preparations currently available for pediatric use (beclomethasone dipropionate and triamcinolone acetonide) do not, in general, cause significant hypothalamic-pituitary-adrenal axis suppression and physical signs of glucocorticoid excess have not been described with their use. We report an 8-year-old girl with asthma in whom obesity, hirsutism, and growth retardation developed during treatment with inhaled triamcinolone acetonide alone. Laboratory studies showed suppression of endogenous cortisol production but did not demonstrate suppression of the hypothalamic-pituitary-adrenal axis. Cessation of inhaled triamcinolone acetonide therapy resulted in resolution of obesity and hirsutism, resumption of normal growth, and a return to normal of serum cortisol levels and urinary 17-hydroxycorticosteroid excretion. Careful monitoring of growth velocity and (if clinically indicated) morning serum cortisol levels in asthmatic children using inhaled corticosteroids will detect the rare instance of glucocorticoid excess resulting from systemic absorption of these drugs.

Administration, Inhalation↗

[The inhalation therapy of the hypertensive bronchial system (author's transl)].

We talk about a hypersensitive bronchial systems, when under certain endogenous prepositions or exogenous influences, upon which a health person reacts hardly or not at all, it comes to a significant raise of the airway resistances. Probably this is the prestadium of a chronic obstructive airway disease, which often occurs with patients suffering from an existent bronchial disease. Therefore it is important for actual clinical practice to discuss here those drugs which were needed usually in the inhalation therapy and possible interfere with the raise of sensitivity of the bronchial airways. We tested the effects of different pharmaca given as aerosols on the lung function of patients suffering from a bronchial hypersensitivity basing on those results we discuss several therapeutic problems which ensue.

Aerosols↗

Effect of nitric oxide gas on the generation of nitric oxide by isolated blood vessels: implications for inhalation therapy.

1. We have investigated, using rat aortic rings, whether exogenous nitric oxide (NO) gas affects the activity or expression of the inducible, Ca(2+)-independent NO synthase. 2. Incubation of rings with lipopolysaccharide (LPS, S. typhosa) for 6 h resulted in a gradual loss of tissue tone, a time-dependent reduction in constrictor response to phenylephrine and significant expression and activity of Ca(2+)-independent NO synthase. 3. Following incubation of LPS-treated rings with NO gas, the expression of inducible NO synthase mRNA was still observed, although the enzyme activity was significantly reduced and there was no reduction in the response to phenylephrine. 4. Therefore, NO gas can inhibit the action but not the induction of an NO synthase likely to play a role in inflammatory states such as adult respiratory distress syndrome (ARDS). 5. These observations may explain the rebound phenomenon observed in some ARDS patients following inhalation therapy with NO gas.

Amino Acid Oxidoreductases↗

[A critical patient relieved from status asthmaticus with isoflurane inhalation therapy].

In cases of life-threatening status asthmaticus which are refractory to drug therapy, the administration of inhalation anesthetics can be life-saving as they help alleviate bronchial spasm. We had an 11-year-old female patient suffering from status asthmaticus who was moribund from severe CO2 narcosis and was not responding to any of the conventional therapies. She finally fell into ventricular fibrillation. After cardiopulmonary resuscitation, we administered 2.0% isoflurane in oxygen. Within half an hour, her high inspiratory pressure was dramatically decreased, and then the isoflurane concentration was maintained at 1.0%. After 14 hours of isoflurane anesthesia, PaCO2 decreased to the normal level and the isoflurane treatment was discontinued. The endotracheal tube was removed 4 hours later. She had an uneventful recovery and was discharged from the hospital 11 days later. With its low metabolic rate and therefore low organ toxicity, as well as its low arrhythmogenicity with remarkable bronchodilating activity, we feel isoflurane may well be superior to other inhalation anesthetics in the treatment of status asthmaticus.

Administration, Inhalation↗

[Complete remission of pulmonary metastasis from renal cell carcinoma through inhalation therapy with Interleukin-2 after unsuccessful systemic immunochemotherapy].

Therapy of metastasized renal cell carcinoma is based on systemic immunotherapeutic strategies, if surgical resection is not possible. The costs of inhalative Interleukin-2 therapy in case of pulmonary metastases as off-label-use are not accepted by compulsory health insurance yet.We report on a female patient with pulmonary metastasized renal cell carcinoma who had tumor progression after immunochemotherapy that followed complete response after inhalative therapy with Interleukin-2.

Administration, Inhalation↗