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The aim of this study was to evaluate the impact of obstructive sleep apnea syndrome (OSAS) and the effects of nasal continuous positive airway pressure (CPAP) on the LV geometric patterns. Methods The LV morphological parameters, including the LV mass index (LVMI) and the relative wall thickness (RWT), were evaluated using echocardiography in 37 patients with OSAS diagnosed on polysomnography and 34 control subjects. Based on the values of LVMI and RWT, the LV geometry was classified as normal, concentric remodeling, concentric hypertrophy or eccentric hypertrophy. The echocardiographic parameters were reassessed after three months of CPAP treatment. Results Compared with the controls, the OSAS patients had a higher proportion of concentric hypertrophy patterns (54% vs. 0%, p\u003c0.001) and a lower proportion of normal geometric patterns (5% vs. 62%, p\u003c0.001). A univariate logistic regression analysis showed the apnea-hypopnea index, lowest oxygen saturation, hypoxemia index and body mass index to each be significantly associated with the presence of concentric hypertrophy. In a multivariate analysis of these factors, the apnea-hypopnea index was found to be a significant independent factor associated with the presence of concentric hypertrophy (odds ratio: 1.06, p=0.008). Three months of CPAP treatment resulted in significant decreases in LVMI and the proportion of cases with concentric hypertrophy (both p=0.025). 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Effects of Nasal Continuous Positive Airway Pressure on Left Ventricular Concentric Hypertrophy in Obstructive Sleep Apnea Syndrome
http://hdl.handle.net/10069/30992
http://hdl.handle.net/10069/3099268afd997-c17e-44b3-a7fc-719cf9626b12
名前 / ファイル | ライセンス | アクション |
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IntMed51_2863.pdf (151.4 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2013-03-14 | |||||
タイトル | ||||||
タイトル | Effects of Nasal Continuous Positive Airway Pressure on Left Ventricular Concentric Hypertrophy in Obstructive Sleep Apnea Syndrome | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Continuous positive airway pressure | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Left ventricular hypertrophy | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Obstructive sleep apnea syndrome | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Koga, Seiji
× Koga, Seiji× Ikeda, Satoshi× Nakata, Tomoo× Yasunaga, Tomohiko× Maemura, Koji |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Objective Abnormal left ventricular (LV) geometry, especially concentric hypertrophy, is associated with cardiovascular morbidity and mortality. The aim of this study was to evaluate the impact of obstructive sleep apnea syndrome (OSAS) and the effects of nasal continuous positive airway pressure (CPAP) on the LV geometric patterns. Methods The LV morphological parameters, including the LV mass index (LVMI) and the relative wall thickness (RWT), were evaluated using echocardiography in 37 patients with OSAS diagnosed on polysomnography and 34 control subjects. Based on the values of LVMI and RWT, the LV geometry was classified as normal, concentric remodeling, concentric hypertrophy or eccentric hypertrophy. The echocardiographic parameters were reassessed after three months of CPAP treatment. Results Compared with the controls, the OSAS patients had a higher proportion of concentric hypertrophy patterns (54% vs. 0%, p<0.001) and a lower proportion of normal geometric patterns (5% vs. 62%, p<0.001). A univariate logistic regression analysis showed the apnea-hypopnea index, lowest oxygen saturation, hypoxemia index and body mass index to each be significantly associated with the presence of concentric hypertrophy. In a multivariate analysis of these factors, the apnea-hypopnea index was found to be a significant independent factor associated with the presence of concentric hypertrophy (odds ratio: 1.06, p=0.008). Three months of CPAP treatment resulted in significant decreases in LVMI and the proportion of cases with concentric hypertrophy (both p=0.025). Conclusion In our limited study population, OSAS patients were found to be associated with a high prevalence of concentric LV hypertrophy patterns that were able to be reversed with three months of CPAP treatment. | |||||
書誌情報 |
Internal Medicine 巻 51, 号 20, p. 2863-2868, 発行日 2012-10-15 |
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出版者 | ||||||
出版者 | 日本内科学会 | |||||
出版者別言語 | ||||||
Japanese Society of Internal Medicine | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 09182918 | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13497235 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.2169/internalmedicine.51.8062 | |||||
権利 | ||||||
権利情報 | © 2012 The Japanese Society of Internal Medicine. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Internal Medicine, 51(20), pp.2863-2868; 2012 |