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Biomedical subjects

H Rundcrantz

Publications and source records attributed to H Rundcrantz.

At least 19 recordsLinked to original sources

Nasal decongestant effect of oxymetazoline in the common cold: an objective dose-response study in 106 patients.

Oxymetazoline has been used as decongesting nosedrops for more than 25 years but so far no objective dose-response study of the drug has been published. In this double-blind clinical trial the decongestant effect on the nasal mucosa by the doses and concentrations traditionally used of oxymetazoline were studied. In 106 men with acute infectious rhinitis, a significant dose-response relationship was found when the decongestant effect was measured objectively by anterior rhinomanometry and subjectively by symptom scores. The concentration and volumes of the drug recommended from clinical experience seem to be adequate.

Adult

Effect of terfenadine and placebo on symptoms after nasal allergen provocation.

Terfenadine (60 mg b.i.d.) was compared with placebo in a randomized, double-blind, cross-over study in twenty-three patients with birch pollen allergy. The patients were treated during two 7-day periods separated by a 2-week wash-out period during a season free from birch pollen. Nasal provocations with birch pollen extracts were made at study entry and after each treatment period. Blockage (rhinomanometry), secretion (weight) and sneezings (number) were compared between treatments. The results showed a significant inhibitory effect of terfenadine on secretion and sneezing, but no significant difference between treatments with regard to blockage. Terfenadine showed no signs of sedative properties or inhibition of salivation.

Adult

Treatment of perennial secretory rhinitis.

Patients with a history of nonallergic perennial secretory rhinitis of many years' duration were selected for a comparative study investigating the effects of the topical application of ipratropium (an anticholinergic drug) and budesonide (a glucocorticoid). According to the patient's daily registration of nasal symptoms, there was a significant effect of budesonide on nasal secretion and sneezes. Since budesonide proved superior to ipratropium, it is concluded that the secretion in this type of rhinitis might be regulated by mechanisms other than cholinergic.

Administration, Topical

Acute epiglottitis treated by intubation.

Acute epiglottitis is a severe disease which is especially common in children and may be fatal if not treated. The main problem in these patients is to secure a free airway. During the last decade there has been much debate as to whether one should perform a tracheotomy or secure the airway by means of long-term intubation. During the last 12 years we have treated 86 patients with acute epiglottitis by long-term intubation to secure the airway. Three of these patients have been tracheotomized. All patients have been investigated by direct laryngotracheoscopy about 3 months after recovery. During the last 8 years we have had no complications whatsoever and we consider long-term intubation to be a safe and convenient way of securing the airway in acute epiglottitis.

Acute Disease

The effect of a local decongestant in acute rhinitis as related to body position.

In different forms of rhinitis a recumbent position aggravates nasal congestion. An earlier study has shown how a recumbent position strongly reduces the effect of oral decongestants. Now the effect of a local decongestant, oxymetazolinchlorid, in acute rhinitis as related to body position has been studied by means of rhinomanometry. The effect of this local decongestant seems not to be affected by body position.

Acute Disease

A randomized trial of intranasal beclomethasone dipropionate after polypectomy.

Beneficial effects of intranasal beclomethasone dipropionate (Bdp) in patients with nasal polyposis have been reported earlier. This study was carried out to investigate whether long-term treatment with Bdp after polypectomy could prevent formation of new polyps and reduce the number of surgical removals. Forty consecutive patients without laboratory or other clinical signs of allergy but with severe nasal polyposis were included in the study. Twenty patients were treated with intranasal Bdp and twenty patients received no treatment after polypectomy. All patients were followed for at least 2.5 years. The size of the polyps that recurred was estimated at different time-intervals by the examining doctor. After six months there was already a significant difference in favour of the group treated with intranasal Bdp. Further results of the study and the clinical implications are discussed.

Administration, Intranasal

Peroral chromones. A new way to treat allergic rhinitis?

Disodium chromoglycate (DSCG) is well documented in the topical treatment of allergic rhinitis. Its use does not lead to any major side effects. FPL 57579 is a new chromone compound which is well absorbed after oral administration. In a clinical trial, patients with allergic rhinitis underwent a nasal challenge before and after ingestion of FPL 57579. the effect on nasal airway resistance (NAR) was determined by rhinomanometry. In all cases there was a smaller increase in NAR after the intake of FPL 57579.

Administration, Oral

DSCG eye drops in allergic rhino-conjunctivitis.

Thirty patients with allergic rhinoconjunctivitis were treated with eye drops containing 2% DSCG during the pollen season of 1977. Sixteen patients were treated with active substance and 14 with placebo. The results show a statistically significant difference in favour of the DSCG drops. DSCG in eye drops seems to be a valuable complement to the drugs available today for the treatment of allergic rhinoconjunctivitis.

Clinical Trials as Topic

Treatment of vasomotor rhinitis with intranasal disodium cromoglycate (SCG). Results from a double-blind cross-over study.

The effect of SCG powder (Lomudalr, Intalr) intranasally in vasomotor rhinitis has been studied on 49 adult volunteers in a double-blind cross-over study during 13 weeks in January--April 1973. The dose of SCG was 40 mg/day. Although a substantial number of results were obtained, no significant difference between the effects of SCG and placebo treatment, on variables measured, was detected. However, some patients experienced relief with, and preferred, the treatment with SCG. The results from this investigation are discussed in comparison with those from other studies including patients with vasomotor rhinitis.

Administration, Intranasal