Sleep apnea in acute coronary syndrome: High prevalence but low impact on 6-month outcome

Mehra, Reena; Príncipe-Rodríguez, Karem; Kirchner, H. Lester; Strohl, Kingman P.

doi:10.1016/j.sleep.2006.03.012

Cited by 68 publications

(63 citation statements)

References 29 publications

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“…The prevalence of sleep apnoea in the acute phase after a first AMI in the current study is confirmed by several previous studies [5,6,[25][26][27]. NAKASHIMA et al [6] and YUMINO et al [25] performed their sleep studies between 14-21 days after primary PCI, whereas other previous studies used a similar time-point to the present study to assess sleep apnoea at baseline (,5 days after AMI) [5,26,28].…”

Section: Sleep-related Disorders S Buchner Et Alsupporting

confidence: 86%

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Natural course of sleep-disordered breathing after acute myocardial infarction

et al. 2012

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The aim of this study was to test whether an improvement of left ventricular ejection fraction (EF) in the early phase after acute myocardial infarction is associated with a reduction of the severity of central and obstructive sleep apnoea.40 consecutive patients with acute myocardial infarction underwent polysomnography and cardiovascular magnetic resonance imaging within 5 days and 12 weeks after the event to assess sleep apnoea and cardiac function. We stratified the sample in patients who improved their left ventricular EF within 12 weeks by o5% (improved EF group, DEF 9¡1%, n516) and in those who did not (unchanged EF group, DEF -1¡1%, n524).Prevalence of sleep apnoea (o15 apnoea and hypopnoea events?h -1 ) within f5 days after myocardial infarction was 55%. Apnoea and hypopnoea events?h -1 were significantly more reduced in the improved EF group compared with the unchanged EF group (-10¡3 versus 1¡3 events?h -1 ; p50.036). This reduction was based on a significant alleviation of obstructive events (-7¡2 versus 4¡3 events?h -1 ; p50.009), while the reduction of central events was similar between groups (p50.906).An improvement of cardiac function early after myocardial infarction is associated with an alleviation of sleep apnoea. This finding suggests that re-evaluation of treatment indication for sleep apnoea is needed when a change in cardiac function occurs.

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Section: Sleep-related Disorders S Buchner Et Alsupporting

confidence: 86%

“…NAKASHIMA et al [6] and YUMINO et al [25] performed their sleep studies between 14-21 days after primary PCI, whereas other previous studies used a similar time-point to the present study to assess sleep apnoea at baseline (,5 days after AMI) [5,26,28].…”

Section: Sleep-related Disorders S Buchner Et Almentioning

confidence: 98%

Natural course of sleep-disordered breathing after acute myocardial infarction

et al. 2012

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“…[17][18][19][20][21][22][23][24][25]31 Additionally, a temporal association has been found In conclusion, our data show a high prevalence of obstructive sleep apnea-hypopnea syndrome in the acute myocardial ischemia setting. In the majority of cases, this did not persist and AHI was significantly lower 6 months later, indicating that OSAHS may be transient.…”

Section: Discussionsupporting

confidence: 55%

“…19,20,[22][23][24]31 Furthermore, the patient samples were heterogeneous, since conditions that could increase the prevalence of OSAHS-confused patients, patients who had received sedatives or narcotics, and patients with chronic obstructive pulmonary disease, severe bronchial asthma, or stroke-were not excluded. 18,19,23,24 Moreover, sleep position and the fact that, as sensors need to be attached, patients are more likely to lay supine in the coronary care unit (CCU) or sleep laboratory setting as opposed to their own home, was not taken into consideration. Therefore, the possibility of transient OSAHS or a false-positive diagnosis cannot be excluded.…”

Section: Polysomnographymentioning

confidence: 99%

“…Although an increased incidence of CAD has been found in patients with OSAHS, 13,14 and even mild to moderate OSAHS has been associated with a worse prognosis in patients with existing CAD, 15,16 the characterization of OSAHS in the acute myocardial ischemia setting is less clear. [17][18][19][20][21][22][23][24][25] Based on the results of recent studies 19,20,25 it is diffi cult to determine whether OSAHS contributes to the occurrence of ACS, or whether OSAHS is a consequence of the acute phase in ACS patients that may improve after medical stabilisation. We therefore conducted a longitudinal study to assess the prevalence of OSAHS in a homogeneous group of patients with ACS, who had no other medical or known sleep disorder, to examine whether OSAHS persists over time and to elucidate any possible connection with the severity of the underlying disease.…”

mentioning

confidence: 99%

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Sleep Disordered Breathing in Patients with Acute Coronary Syndromes

Schiza

Simantirakis

Bouloukaki

et al. 2012

Journal of Clinical Sleep Medicine

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Organic Light‐Emitting Diodes: Pushing Toward the Limits and Beyond

et al. 2020

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Organic light‐emitting diodes (OLEDs) are established as a mainstream light source for display applications and can now be found in a plethora of consumer electronic devices used daily. This success can be attributed to the rich luminescent properties of organic materials, but efficiency enhancement made over the last few decades has also played a significant role in making OLEDs a practically viable technology. This report summarizes the efforts made so far to improve the external quantum efficiency (EQE) of OLEDs and discusses what should further be done to push toward the ultimate efficiency that can be offered by OLEDs. The study indicates that EQE close to 58% and 80% can be within reach without and with additional light extraction structures, respectively, with an optimal combination of cavity engineering, low‐index transport layers, and horizontal dipole orientation. In addition, recent endeavors to identify possible applications of OLEDs beyond displays are presented with emphasis on their potential in wearable healthcare, such as OLED‐based pulse oximetry as well as phototherapeutic applications based on body‐attachable flexible OLED patches. OLEDs with fabric‐like form factors and washable encapsulation strategies are also introduced as technologies essential to the success of OLED‐based wearable electronics.

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Sleep apnea in acute coronary syndrome: High prevalence but low impact on 6-month outcome

Cited by 68 publications

References 29 publications

Natural course of sleep-disordered breathing after acute myocardial infarction

Natural course of sleep-disordered breathing after acute myocardial infarction

Sleep Disordered Breathing in Patients with Acute Coronary Syndromes

Organic Light‐Emitting Diodes: Pushing Toward the Limits and Beyond

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