2010
DOI: 10.1007/s11325-010-0411-y
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Correlation of pulmonary hypertension severity with metrics of comorbid sleep-disordered breathing

Abstract: SDB comprised of obstructive apneas, hypopneas, and nocturnal hypoxemia is prevalent in PH and cannot be accurately predicted by sleep apnea signs and symptoms or diurnal rest and exercise SaO(2). The association of AHI and T90% with mPAP suggests a potential relationship between the pathophysiology of sleep-disordered breathing and PH.

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Cited by 37 publications
(36 citation statements)
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“…Pulmonary arterial hypertension (PAH) is present in 20 to 40% of patients with obstructive sleep apnea syndrome (OSAS) (1)(2)(3). PAH accompanies thickening of the pulmonary artery (PA) smooth muscle and an increase in pulmonary vascular resistance, right ventricular (RV) systemic pressure (RVSP), and RV mass (4).…”
Section: Clinical Relevancementioning
confidence: 99%
“…Pulmonary arterial hypertension (PAH) is present in 20 to 40% of patients with obstructive sleep apnea syndrome (OSAS) (1)(2)(3). PAH accompanies thickening of the pulmonary artery (PA) smooth muscle and an increase in pulmonary vascular resistance, right ventricular (RV) systemic pressure (RVSP), and RV mass (4).…”
Section: Clinical Relevancementioning
confidence: 99%
“…Several studies have shown that severe precapillary PH associated with right ventricular failure and low cardiac output may be associated with SDB including CSR/CSA as well as OSA, similar to what is observed in patients with severe left ventricular failure and postcapillary PH [7,42,43]. The mechanisms responsible for the destabilizing effect of PH on control of breathing remain elusive.…”
Section: Mechanisms Linking Precapillary Ph and Sdbmentioning
confidence: 89%
“…Thus, pulse oximetry alone cannot be recommended as diagnostic tool for SDB in PH patients. Whereas in some studies on the association of precapillary PH with SDB nocturnal hypoxemia without sleep apnea was the predominant finding [55,56], others found sleep apnea without severe persistent hypoxemia [7,54] or a combination of both persistent hypoxemia and sleep apnea [42,43]. In a most recent study in Kyrgyz highlanders, a high prevalence of mainly OSAs was found among individuals with high-altitude PH, a particular form of precapillary PH occurring in life-long residents at altitudes >2,500 m. This observation suggests that individuals exposed to the combined stimuli of chronic hypoxemia due to high-altitude residence and intermittent nocturnal hypoxemia due to sleep apnea may be more susceptible to PH compared to highlanders without sleep apnea [57].…”
Section: Sdb In Patients With Precapillary Phmentioning
confidence: 99%
“…Mehrere Studien belegen, dass mit rechtsventrikulärer Insuffizienz und niedriger Auswurfleistung einhergehende schwere präkapilläre PH mit SBAS einschließlich CSA/ZSA und OSA assoziiert sein kann, ähnlich wie bei Patienten mit schwerer linksventrikulärer Insuffizienz und postkapillärer PH [7,42,43]. Die Mechanismen, die für die destabilisierende Wirkung der PH auf die Atemsteuerung verantwortlich sind, sind noch ungeklärt.…”
Section: Mechanismen Die Präkapilläre Ph Und Sbas Verbindenunclassified
“…Die Pulsoximetrie allein kann daher nicht als diagnostisches Instrument für SBAS bei PH-Patienten empfohlen werden. Während in einigen Studien zur Assoziation von PH mit SBAS der prädominante Befund in nächtlicher Hypoxämie ohne Schlafapnoe bestand [55,56], war es in anderen die Schlafapnoe ohne persistierende Hypoxämie [7,54] oder eine Kombination aus sowohl persistierender Hypoxämie und Schlafapnoe [42,43]. In einer aktuellen Studie zu Einwohnern des kirgisischen Hochlandes wurde bei Personen mit Höhen-PH (einer Sonderform der präkapillären PH bei Personen, die ihr ganzes Leben in Höhenlagen >2 500 m verbracht haben) eine hohe Prävalenz vor allem von OSA festgestellt.…”
Section: Sbas Bei Patienten Mit Präkapillärer Phunclassified