S144 Quality Of Life In Idiopathic Pulmonary Arterial Hypertension Is Associated With Quadriceps Function And Size
S144 Quality Of Life In Idiopathic Pulmonary Arterial Hypertension Is Associated With Quadriceps Function And Size
复制标题
S144 特发性肺动脉高压的生活质量与股四头肌功能和大小相关
DOI:
10.1136/thoraxjnl-2014-206260.150
复制
发表时间:
2014
期刊:
影响因子:
10
通讯作者:
Garfield B
中科院分区:
文献类型:
--
作者:
Garfield B
IntroductionDespite recent improvements in therapy patients with idiopathic pulmonary arterial hypertension (IPAH) still suffer with significantly reduced quality of life (QOL). Muscle dysfunction and low physical activity are emerging as important complications of the disease. Separately rehabilitation programs have been shown to cause an improvement in both QOL and muscle strength but the direct relationship between these factors has not as yet been documented in this condition.AimsWe aimed to define the relationship between QOL and muscle function, size and physical activity in patients with IPAH.MethodsIn 12 patients with IPAH we measured quadriceps maximal volitional capacity (QMVC), ultrasound cross sectional area of the rectus femoris (USRFCSA), fat free mass index by bioelectrical impedance (FFMI), physical activity using the Sensewear armband (steps per day, total energy expenditure (TEE), and active energy expenditure (AEE)). They were also asked to complete the St. George’s respiratory questionnaire (SGRQ). Correlations were performed with Pearson’s or Spearman’s test.ResultsIn the 12 patients with data so far available in this study QOL measured by the total SGRQ score correlated significantly with QMVC/BMI (r = -0.75, p = 0.005), FFMI (r = -0.71, p = 0.009) and USRFCSA(r = -0.88, p = 0.0002) (Figure 1A). There was no significant correlation between total SGRQ score and Sensewear measured steps per day (r = -0.62, p = 0.08) (Figure 1B) TEE (r = -0.62, p = 0.08) or AEE (rho = -0.41, p > 0.05) in the 9 patients with data available. Furthermore there was no significant correlation between BNP or resting echocardiographic parameters and total SGRQ QOLDiscussionWe have shown that muscle size and function are directly related to QOL in patients with IPAH. This work suggests that muscle function may be an important determinant of QOL in these patients, making it a potential target for therapeutic intervention. Further data is needed to define the association between physical activity and QOL in patients with IPAH.