Vincenzo Patruno SOC Pneumologia Riabilitativa I.M.F.R. - Udine
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Vincenzo PatrunoSOC Pneumologia Riabilitativa
I.M.F.R. - Udine
Il paziente cardiologico
&
DISTURBI RESPIRATORI
DURANTE SONNO
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Paziente con apnee durante sonno quali malattie cardiache ?
Paziente con malattie cardiache quali apnee durante sonno?
due punti di vista..................
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Hypertension
CardiacArrhythmia
Coronary Ischemic disease
Heart Failure
OSA
Epidemiology: discovered the association
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Report of the Joint National Committee on Prevention, Detection, Evaluation and Treatment of Hight Blood Pressure
“OSA as first of identifiable causes of hypertension”
Chobanian AV. JAMA 2003, 289:2560
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The Journal of Clinical HypertensionVolume 9, Issue Supplement s1, pages 2–6, January 2007
….FIRST ACKNOWLEDGE OSA AS ONE OF THE FACTORS RESPONSIBLE FOR RESISTANT HYPERTENSION
2007 EUROPEAN SOCIETY OF CARDIOLOGY – EUROPEAN SOCIETY OF HYPERTENSION GUIDELINES
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Atrial Fibrillation
In a substudy of the Sleep Heart Health Study, individuals with severe sleep apnea had four times the odds of having AF (OR 4.02, 95% CI 1.03–15.74) compared with individuals without OSA, even after adjusting for possible confounding factors.
Another cohort study of 3542 patients showed that OSA is an independent risk factors for AF (HR 3.29, 95% CI 1.35–8.04, P . 0.009)
Mehra R,Association of nocturnal arrhythmias with sleep-disordered breathing. The Sleep Heart Health Study. Am J Respir Crit Care Med 2006;173: 910–6.
Gami ASObstructive sleep apnea, obesity, and the risk of incident atrial fibrillation.J Am Coll Cardiol 2007;49:565–71.
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Am J Cardiol. 2011 Jul 1;108(1):47-51. Epub 2011 Apr 29.
Meta-analysis of obstructive sleep apnea as predictor of atrial fibrillation recurrence after catheter ablation.
Ng CY, Liu T, Shehata M, Stevens S, Chugh SS, Wang X.
AF recurrence…..
…patients with OSA have a 25% greater risk of AF recurrence after catheter ablation than those without OSA (risk ratio 1.25, 95% confidence interval 1.08 to 1.45)….
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(Am J Respir Crit Care Med. 163, 19-25 2001)
Coronary Heart Disease
OR 1.22
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10% of CHF patients have obstructive apneasJavaheri S. Circulation 1998, 97:2154–2159 -.
11% of CHF patients have obstructive apneas
DON D. SIN.AM J RESPIR CRIT CARE MED 1999;160:1101–1106.
9% of CHF patients have obstructive apneasLanfranchi P., Somers VK et al. Circulation 2003 107/5 727-732
Obstructive Sleep Apnea & Chronic Heart Failure
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OSA CVDs
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FE 37% 49% in una settimana di trattamento CPAP
Malone et al. Lancet 1991;338:1480-4
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Paziente con apnee quali malattie cardiache ?
Paziente con malattia cardiaca quali apnee ?
Cuore e Respiro: Due punti di vista
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40% of CHF patients have CSA-CSRJavaheri S. Circulation 1998, 97:2154–2159 -.
27% of CHF patients have CSA-CSR
DON D. SIN.AM J RESPIR CRIT CARE MED 1999;160:1101–1106.
69% of CHF patients have CSA-CSRLanfranchi P. Circulation 2003 feb 11 107/5) 727-732
Central Sleep Apnea & Chronic Heart Failure
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Mechanisms of CSR in CHF (I):Wedge pressure and carbon dioxide levels in heart failure
Solin P, et al. Influence of pulmonary capillary wedge pressure on central apnea in heart failure. Circulation. 1999;99:1574-1579
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Mechanisms of CSR in CHF (II): Ventilatory Response to CO2
A MECHANISM OF CENTRAL SLEEP APNEA IN PATIENTS WITH HEART FAILURE
JAVAHERI, N Engl J Med 1999;341:949-54
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Mechanisms of CSR in CHF (III): Circulatory delay and Cycle Lenght
OB= OSA, CN= CSR
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*Intellectual property of A. Braghiroli
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OSCILLAZIONI PERIODICHE INTORNO ALLA SOGLIA APNEICA CO2
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Ridotte riserve O2
Ridotto C.O.
Elevata risposta ventilatoria
Ridotta forza muscolare
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Clinically, CSA–CSR was associated to higher mortality in CHF
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In a large community based study CSA-CSR was not found to be associated with increased mortality
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FENOMENO CHE RISPECCHIA UN DANNO D’ORGANO……..
QUALE E’ IL SIGNIFICATO DEL CSR ?
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2) Meccanismo “di compenso” più benefico che dannoso…..?
QUALE E’ IL SIGNIFICATO DEL CSR ?
1) Meccanismo in se capace di danneggiare il cuore…..?
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258 CHF + CSA/CRS(mean Age 63, FE% 24, AHI 40)
CPAP Group 130Control Group 128
2 years follow-up
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CANPAP Commentary
–CANPAP study very selective patient set – strongly CSR / CSA (low OSA prevalence)–Beta Blockers not used in all subjects –Low over-all event rate (deaths) leave study under-powered for meaningful conclusions–Early increased mortality with CPAP, but without regard tousage or efficacy
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Conclusioni
• Nello scompenso cardiaco cronico associato ad apnee ostruttive il trattamento con CPAP migliora la funzione cardiaca
• Nello scompenso cardiaco cronico associato ad apnee centrali non sono ancora disponibili evidenze definitive che la correzione efficace del disturbo respiratorio porti a un miglioramento della sopravvivenza...
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one last question.......
http://dx.doi.org/10.1016/j.ijcard.2013.04.107
.......agire con il ventilatore per correggere il CSR o agire per migliorare l’emodinamica (che poi il CSR si corregge da solo)? Questo è il problema...
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The unloading effect of CPAP therapy decreases both preload and stroke volumes (SV) in patients with low pulmonary capillary wedge pressure (PCWP). In contrast, PAP therapy increases SV in a state of high PCWP in patients with either exacerbated or stable CHF.
This intriguing phenomenon can be explained by diastolic ventricular interaction.
Unloading the RV by lower body negative pressure in patients with severe CHF reduces the external constraint on LV filling, resulting in the paradoxical dilation of the LV with a rightward shift of the interventricular septum.
Under these circumstances, the Frank-Starling law predicts an increase in SV.
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……grazie per la vostra attenzione….