Biofeedback Training to Increase P co2 in Asthma With Elevated Anxiety: A One-Stop Treatment of Both Conditions?
Biofeedback Training to Increase P co2 in Asthma With Elevated Anxiety: A One-Stop Treatment of Both Conditions?
复制标题
生物反馈训练可增加哮喘伴焦虑症患者的二氧化碳分压:这两种疾病的一站式治疗?
DOI:
10.1097/psy.0000000000001188
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发表时间:
2023
影响因子:
3.3
通讯作者:
Ritz,Thomas
中科院分区:
文献类型:
--
作者:
Meuret,AliciaE;Rosenfield,David;Millard,MarkM;Ritz,Thomas
ObjectiveAnxiety is highly prevalent in individuals with asthma. Asthma symptoms and medication can exacerbate anxiety, and vice versa. Unfortunately, treatments of comorbid anxiety and asthma are largely lacking. A problematic feature common to both conditions is hyperventilation. It adversely affects lung function and symptoms in asthma and anxiety. We examined whether a treatment to reduce hyperventilation, shown to improve asthma symptoms, also improves anxiety in asthma patients with high anxiety.MethodOne hundred twenty English-or Spanish-speaking adult patients with asthma were randomly assigned to either Capnometry-Assisted Respiratory Training (CART) to raise P co 2 or feedback to slow respiratory rate (SLOW). Although anxiety was not an inclusion criterion, 21.7% met clinically relevant anxiety levels on the Hospital Anxiety and Depression Scale (HADS). Anxiety (HADS-A) and depression (HADS-D) scales, anxiety sensitivity (Anxiety Sensitivity Index [ASI]), and negative affect (Negative Affect Scale of the Positive Affect Negative Affect Schedule) were assessed at baseline, posttreatment, 1-month follow-up, and 6-month follow-up.ResultsIn this secondary analysis, asthma patients with high baseline anxiety showed greater reductions in ASI and PANAS-N in CART than in SLOW (p values≤. 005, Cohen d values≥ 0.58). Furthermore, at 6-month follow-up, these patients also had lower ASI, PANAS-N, and HADS-D in CART than in SLOW (p values≤. 012, Cohen d values≥ 0.54). Patients with low baseline anxiety did not have differential outcomes in CART than in SLOW.ConclusionsFor asthma patients with high anxiety, our brief training designed to raise P co 2 resulted in significant and sustained reductions in anxiety sensitivity and negative affect compared with slow-breathing training. The findings lend support for P co 2 as a potential physiological target for anxiety reduction in asthma.