2014
Significant association of diastolic dysfunction and heart failure with severe sleep apnea-induced hypoxemia in patients with drug-resistant hypertension
MELUZÍN, Jaroslav; Tomáš KÁRA; Milos BELEHRAD; Zdeněk STÁREK; Radka STEPANOVA et al.Základní údaje
Originální název
Significant association of diastolic dysfunction and heart failure with severe sleep apnea-induced hypoxemia in patients with drug-resistant hypertension
Autoři
MELUZÍN, Jaroslav; Tomáš KÁRA; Milos BELEHRAD; Zdeněk STÁREK; Radka STEPANOVA; Tereza MIKUŠOVÁ; Helena PODROUŽKOVÁ; Monika ŠPINAROVÁ; Miroslav SOUCEK a Vladimír SOŠKA
Vydání
Experimental and Clinical Cardiology, Oakville, Pulsus Group, 2014, 1205-6626
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30201 Cardiac and Cardiovascular systems
Stát vydavatele
Kanada
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 0.758 v roce 2013
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/14:00076660
Organizační jednotka
Lékařská fakulta
Klíčová slova anglicky
Diastolic dysfunction; Heart failure; Sleep apnea
Štítky
Příznaky
Recenzováno
Změněno: 30. 9. 2014 16:36, Soňa Böhmová
Anotace
V originále
Objectives: The aim of this study was to assess the relationship of the severity of myocardial dysfunction to the severity of sleep apnea syndrome (SAS) in patients with drug-resistant hypertension. Methods and Results: Thirty-five patients with drug-resistant hypertension underwent complete overnight polysomnography and comprehensive echocardiography including Doppler tissue imaging and speckle tracking analysis within 24 hours. Severe SAS was defined by the presence of severe SA-induced hypoxemia as indicated by percentage of sleep time with oxygen saturation < 90% (t90)>/= 12%. Heart failure with normal ejection fraction (HFNEF) and t90 >/= 12% were found in 66% and 31% of subjects, respectively. Multivariate regression analysis revealed a significant and independent association of left atrial volume index (LAVI) with t90 >/= 12% (OR 1.292, CI 1.041-1.604, p = 0.020). Severe SA-induced hypoxemia was found in 11 (48%) patients with HFNEF, but in none of those without HFNEF (p < 0.01). Conclusion: In patients with drug-resistant hypertension, there exists a significant association of diastolic dysfunction and heart failure with severe SAS. LAVI represents an independent predictor of severe SA-induced hypoxemia.