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Effect of inhaling heated vapor on symptoms of the common cold.
JAMA 1994; 271(14):1109-11JAMA

Abstract

OBJECTIVE

To test the efficacy of steam inhalation in treating common cold symptoms.

DESIGN

An in vitro study determined the temperature that inactivated rhinovirus: a temperature of 43 degrees C lasting at least 1 hour was needed. We then conducted a double-blind, placebo-controlled, randomized in vivo study.

SETTING

The virology laboratory and the outpatient department of the Cleveland (Ohio) Clinic Foundation.

PATIENTS

Sixty-eight Cleveland Clinic employee volunteers with symptoms of the common cold at the time of enrollment.

INTERVENTION

A single 60-minute treatment was given to the volunteers. The steam treatment group (n = 32) received 40 L/min of heated saturated air that raised the intranasal temperature to 43 degrees C. The placebo group (n = 36) received 2 L/min of ambient air at 20 degrees C to 24 degrees C.

MAIN OUTCOME MEASURES

Subjective symptom scores for nasal congestion, nasal drainage, and sneezing and objective measures of nasal resistance were studied during a 7-day follow-up observation period.

RESULTS

There were no significant differences in daily symptom scores between the groups (P = .59 to .83). The only statistically significant differences between the groups were lower nasal resistances at baseline in the steam group (P = .04) and percent improvement in nasal resistance favoring the placebo group on day 7 (P = .01). However, these differences were of questionable clinical significance.

CONCLUSION

We conclude that steam inhalation treatment had no beneficial effect on the cold symptoms of our volunteers.

Authors+Show Affiliations

Department of Infectious Disease, Cleveland Clinic Foundation, Ohio 44195.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

8151854

Citation

Forstall, G J., et al. "Effect of Inhaling Heated Vapor On Symptoms of the Common Cold." JAMA, vol. 271, no. 14, 1994, pp. 1109-11.
Forstall GJ, Macknin ML, Yen-Lieberman BR, et al. Effect of inhaling heated vapor on symptoms of the common cold. JAMA. 1994;271(14):1109-11.
Forstall, G. J., Macknin, M. L., Yen-Lieberman, B. R., & Medendrop, S. V. (1994). Effect of inhaling heated vapor on symptoms of the common cold. JAMA, 271(14), pp. 1109-11.
Forstall GJ, et al. Effect of Inhaling Heated Vapor On Symptoms of the Common Cold. JAMA. 1994 Apr 13;271(14):1109-11. PubMed PMID: 8151854.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of inhaling heated vapor on symptoms of the common cold. AU - Forstall,G J, AU - Macknin,M L, AU - Yen-Lieberman,B R, AU - Medendrop,S V, PY - 1994/4/13/pubmed PY - 1994/4/13/medline PY - 1994/4/13/entrez SP - 1109 EP - 11 JF - JAMA JO - JAMA VL - 271 IS - 14 N2 - OBJECTIVE: To test the efficacy of steam inhalation in treating common cold symptoms. DESIGN: An in vitro study determined the temperature that inactivated rhinovirus: a temperature of 43 degrees C lasting at least 1 hour was needed. We then conducted a double-blind, placebo-controlled, randomized in vivo study. SETTING: The virology laboratory and the outpatient department of the Cleveland (Ohio) Clinic Foundation. PATIENTS: Sixty-eight Cleveland Clinic employee volunteers with symptoms of the common cold at the time of enrollment. INTERVENTION: A single 60-minute treatment was given to the volunteers. The steam treatment group (n = 32) received 40 L/min of heated saturated air that raised the intranasal temperature to 43 degrees C. The placebo group (n = 36) received 2 L/min of ambient air at 20 degrees C to 24 degrees C. MAIN OUTCOME MEASURES: Subjective symptom scores for nasal congestion, nasal drainage, and sneezing and objective measures of nasal resistance were studied during a 7-day follow-up observation period. RESULTS: There were no significant differences in daily symptom scores between the groups (P = .59 to .83). The only statistically significant differences between the groups were lower nasal resistances at baseline in the steam group (P = .04) and percent improvement in nasal resistance favoring the placebo group on day 7 (P = .01). However, these differences were of questionable clinical significance. CONCLUSION: We conclude that steam inhalation treatment had no beneficial effect on the cold symptoms of our volunteers. SN - 0098-7484 UR - https://www.unboundmedicine.com/medline/citation/8151854/Effect_of_inhaling_heated_vapor_on_symptoms_of_the_common_cold_ L2 - https://jamanetwork.com/journals/jama/fullarticle/vol/271/pg/1109 DB - PRIME DP - Unbound Medicine ER -