ArticleClinical research in cardiology : official journal of the German Cardiac Society2023
Impact of transcatheter edge-to-edge mitral valve repair on central sleep apnoea.
Article in Clinical research in cardiology : official journal of the German Cardiac Society, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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3 citing papers in PubMed, 4 citations in OpenAlex.
- Aortic regurgitation is associated with African American and Asian race, smoking, renal disease, and numerous autoimmune diseases in addition to traditional cardiovascular risk factors but has lower risk with alcohol intake.Clinical research in cardiology : official journal of the German Cardiac Society · 2026Article
- [Heart and sleep: a strong team! : Cardiovascular effects of sleep-disordered breathing and its treatment].Innere Medizin (Heidelberg, Germany) · 2025Review
- Positive Airway Pressure Therapies for Heart Failure: What Do the Trials Tell Us?Cardiac failure review · 2025Review
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Authors and funding
11 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
aimsSleep-disordered breathing (SDB) and its subtype central sleep apnoea (CSA) are highly prevalent in patients with heart failure and associated with worse prognosis. Whereas pharmacological therapy of heart failure has been shown to ameliorate CSA, results from previous studies on the effect of mitral regurgitation therapy on SDB are contradicting. The aim of this study was to assess the impact of transcatheter edge-to-edge mitral valve repair (TEER) on prevalence and severity of CSA. METHODS AND
resultsWe enrolled 47 patients undergoing TEER for symptomatic mitral regurgitation in a prospective study. Secondary mitral regurgitation and left ventricular ejection fraction < 50% were present in 79% and 68% of patients, respectively. Respiratory polygraphy was performed before TEER in a compensated condition and four weeks after the procedure. 34 patients completed the follow-up. At baseline, 19 (56%) patients showed moderate-to-severe SDB, of whom 13 (68%) were classified as CSA. Both apnoea-hypopnoea index and percentage of recorded time spent in Cheyne-Stokes respiration strongly decreased from baseline to follow-up (median [IQR] 16 [7-30] vs. 7 [4-15] /h, p = 0.007; 6 [0-34] vs. 0 [0-8] %, p = 0.008). Median relative reduction of central apnoea index was 75% (p = 0.023), while obstructive apnoea index did not change significantly. Increase in stroke volume after TEER and high systolic pulmonary artery pressure at baseline predicted a > 50% reduction of both Apnoea-hypopnoea index and Cheyne-Stokes respiration.
conclusionTEER is associated with a significant short-term reduction of CSA and Cheyne-Stokes respiration in high-risk patients, strengthening its value as an effective treatment option for advanced heart failure.
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