This randomized controlled trial enrolled 48 patients with acute exacerbation of bronchial asthma. The observation group (24 cases, 2 eliminated) received acupuncture based on the theory of 'exterior-interior relationship between lung and large intestine', targeting bilateral Feishu (BL13), Dachangshu (BL25), and Dingchuan (EX-B1) for 20 minutes every other day, 3 times a week for 14 days. The control group (24 cases, 1 eliminated) received conventional western medicine therapy.
Primary outcomes were PEF, FEV1, FEV1/FVC, ACQ5 score, and TCM symptom score. Within the observation group, PEF, FEV1, and FEV1/FVC increased compared with before treatment (p<0.01 for PEF; p<0.05 for FEV1 and FEV1/FVC). ACQ5 and TCM symptom scores decreased (p<0.01 for both). Between groups, changes in the observation group were larger than in the control group for PEF (p<0.05), ACQ5 score (p<0.01), and TCM symptom score (p<0.05).
Safety data were not reported for adverse events or serious adverse events. Discontinuations occurred in 2 cases in the observation group and 1 case in the control group. Tolerability was not reported.
Key limitations include the small sample size, lack of reported follow-up duration, and absence of safety data. The study design does not allow for causal inference. Practice relevance is constrained by these limitations and the need for larger, more comprehensive trials.
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OBJECTIVE: To observe the effect of acupuncture based on the theory of "exterior-interior relationship between lung and large intestine" on acute exacerbation of bronchial asthma on the basis of the conventional western medicine therapy.
METHODS: Forty-eight patients with acute exacerbation of bronchial asthma were randomly divided into an observation group (24 cases, 2 cases were eliminated) and a control group (24 cases, 1 case was eliminated). The control group was treated with conventional western medicine therapy. Based on the treatment of the control group ,the patients in the observation group were treated with acupuncture based on the theory of "exterior-interior relationship between lung and large intestine", bilateral Feishu (BL13), Dachangshu (BL25) and Dingchuan (EX-B1) were selected, 20 min each session,once every other day, 3 times a week for 14 days. Before and after treatment, the peak expiratory flow (PEF), forced expiratory volume in one second (FEV1), FEV1/forced vital capacity (FVC), asthma control questionnaire 5 (ACQ5) score and TCM symptom score were observed in the two groups.
RESULTS: After treatment, the PEF, FEV1 and FEV1/FVC in the two groups were increased compared with those before treatment (<0.01, <0.05),the ACQ5 scores and TCM symptom scores were decreased compared with those before treatment (<0.01); the changes of PEF, ACQ5 score and TCM symptom score in the observation group were larger than those in the control group (<0.05, <0.01).
CONCLUSION: On the basis of the conventional western medicine therapy, acupuncture based on the theory of "exterior-interior relationship between lung and large intestine" could improve pulmonary function and alleviate clinical symptoms in patients with acute exacerbation of bronchial asthma.