J 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.