Oximetry Indices in the Management of Sleep Apnea: From Overnight Minimum Saturation to the Novel Hypoxemia Measures

Álvarez, Daniel; Gutiérrez‐Tobal, Gonzalo C.; Vaquerizo-Villar, Fernando; Moreno, Fernando Martínez; Campo, Félix del; Hornero, Roberto

doi:10.1007/978-3-031-06413-5_13

Cited by 6 publications

(4 citation statements)

References 102 publications

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“…Although the correlation between nocturnal systolic blood pressure (BP) and HL became insignificant after adjusting for BMI, HL was strongly associated with the pulse pressure before and after the adjustment for BMI. It was suggested that HL is a suitable marker of BP patterns [71,72]. Considering that hypertension and diabetes are all associated with OSA, future studies using HL may reveal further associations between OSA and CVD [73][74][75][76].…”

Section: Summary Of the Performance Of Novel Oximetry-derived Paramet...mentioning

confidence: 99%

A Review of Novel Oximetry Parameters for the Prediction of Cardiovascular Disease in Obstructive Sleep Apnoea

He,

Cistulli,

de Chazal

2023

Diagnostics

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Obstructive sleep apnoea (OSA) is a sleep disorder with repetitive collapse of the upper airway during sleep, which leads to intermittent hypoxic events overnight, adverse neurocognitive, metabolic complications, and ultimately an increased risk of cardiovascular disease (CVD). The standard diagnostic parameter for OSA, apnoea–hypopnoea index (AHI), is inadequate to predict CVD morbidity and mortality, because it focuses only on the frequency of apnoea and hypopnoea events, and fails to reveal other physiological information for the prediction of CVD events. Novel parameters have been introduced to compensate for the deficiencies of AHI. However, the calculation methods and criteria for these parameters are unclear, hindering their use in cross-study analysis and studies. This review aims to discuss novel parameters for predicting CVD events from oximetry signals and to summarise the corresponding computational methods.

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Section: Summary Of the Performance Of Novel Oximetry-derived Paramet...mentioning

confidence: 99%

A Review of Novel Oximetry Parameters for the Prediction of Cardiovascular Disease in Obstructive Sleep Apnoea

He,

Cistulli,

de Chazal

2023

Diagnostics

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“…Obstructive sleep apnea (OSA) has the potential to engender grave adverse consequences, notably an amplified vulnerability to cardiovascular diseases and neurocognitive morbidities[ 1 , 2 ]. OSA is characterized by recurrent episodes of respiratory airflow cessation related to upper-airway collapse during sleep, leading to decreased oxygen saturation[ 3 ]. A recent systematic review noted the dearth of data regarding the prevalence of OSA in the Asian population[ 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…As the relationship between OSA and hypertension is characterized by its intricate and multifaceted nature, OSA and obesity usually coexist and exhibit overlapping pathophysiological mechanisms[ 11 ]. Epidemiological surveys provide evidence supporting the associations between obesity and hypertension, as well as OSA and obesity[ 3 , 5 , 12 , 13 ]. To our knowledge, the prevalence of hypertension in young adults is much lower than that in middle-aged and older individuals.…”

Section: Introductionmentioning

confidence: 99%

High risk for obstructive sleep apnea and risk of hypertension in military personnel: The CHIEF sleep study

Liu,

Lin,

Tsai

et al. 2023

World J Clin Cases

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Rehabilitation of lower limb amputation in developing countries is quite challenging. Though there are basic to highly advanced prostheses available in India, the set-up is still facing difficulties in developing countries. Prosthetic management is difficult due to lack of availability of prostheses and reduced affordability among low income populations. In this review we highlighted the lower limb amputation and prosthetic rehabilitation status in India. Currently, India is advancing well in the rehabilitation field, but further studies are required to provide more evidence and recommendation.

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“…En el campo de la dinámica no lineal, el concepto de entropía como medida de desorden derivado de la termodinámica ha sido ampliamente aplicado para cuantificar la dinámica no lineal de diferentes señales biomédicas. Entre las múltiples medidas de entropía propuestas en la literatura, la entropía muestral (sample entropy, SampEn) es una de las más extendidas [261], con numerosas aplicaciones sobre señales cardiorrespiratorias, como en HRV [52,259,262] o PRV [254,263], flujo de aire [264] u oximetría nocturna [265,266].…”

Section: Análisis No Lineal La Entropía De Múltiples Escalasunclassified

Apnea obstructiva del sueño posicional. Implicaciones clínicas.

Arroyo Domingo

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Background. Obstructive sleep apnea (OSA) is a highly prevalent disease with major negative implications both for the patient and the health system. Patients showing a higher rate of respiratory events while sleeping in the supine position suffers from the so called positional obstructive sleep apnea (POSA), which is one of the most frequent OSA phenotypes (56%-75%).There is not a consensus within the medical community concerning POSA diagnosis. Since the first definition of positional patients by Cartwright as those showing an apnea-hypopnea index (AHI) in the supine position at least twice the AHI in the non-supine position, numerous amendments have been performed.Recently, the Amsterdam Positional OSA Classification (APOC) criterion has been proposed, which attempts to identify those patients who could benefit the most from a positional therapy due to the removal of positional-related apneas leads to a nonpathologic condition despite residual events or, alternatively, because the absence of positional apneas leads to a significant reduction of the severity of the disease. Are there differences in the severity degree of POSA and Non-POSA patients? Published works are contradictory. Some researchers consider POSA as a milder phenotype of the disease. On the contrary, other authors link supinedependent apneas to more frequent, longer, and severe events, with deeper desaturations, and with a more severe bradycardia-tachycardia pattern. Thus, further research is needed to gain insight into the actual effects of positional apneas. Hypotheses and objectives.The main hypothesis in the present PhD Thesis is that the variability linked to the different existing POSA definitions could affect the viii prevalence, clinical characteristics, and management of patients, and thus, to their health and quality of life. Particularly, as a secondary question, it is hypothesized that positional patients could have higher cardiac autonomic disbalance than nonpositional subjects. Accordingly, the main aim of the PhD Thesis is to characterize patients diagnosed as POSA according to the new APOC criteria and thoroughly analyze their differences compared to a group of non-positional subjects. The following secondary objectives are also stated: to estimate the POSA prevalence according to the existing positional criteria; to analyze the differences among the POSA categories defined by the APOC criterion; to analyze the polysomnographic and pulseoximetric indexes of POSA and Non-POSA patients; to study the influence of POSA in sleep quality, quality of life, and CPAP treatment adherence; to analyze its effect on cardiac autonomic modulation. Materials and methods. A total of 409 patients consecutively referred to the sleep unit of the Pneumology Service of the Río Hortega University Hospital of Valladolid between July 2016 and April 2018 were included in the research. All patients underwent unsupervised nocturnal polysomnography (PSG) at home and simultaneous nocturnal pulse oximetry recording by means of a portable pulseoximeter. A triax...

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Oximetry Indices in the Management of Sleep Apnea: From Overnight Minimum Saturation to the Novel Hypoxemia Measures

Cited by 6 publications

References 102 publications

A Review of Novel Oximetry Parameters for the Prediction of Cardiovascular Disease in Obstructive Sleep Apnoea

A Review of Novel Oximetry Parameters for the Prediction of Cardiovascular Disease in Obstructive Sleep Apnoea

High risk for obstructive sleep apnea and risk of hypertension in military personnel: The CHIEF sleep study

Apnea obstructiva del sueño posicional. Implicaciones clínicas.

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