Background: In recent years, high flow nasal oxygen (HFNO) has been widely used in clinic, especially in perioperative period. Many studies have discussed the role of HFNO in pre- and apneic oxygenation, but their results are controversial. Our study aimed to examine the effectiveness of HFNO in pre- and apneic oxygenation by a meta-analysis of RCTs.
Methods: EMBASE, PUBMED, and COCHRANE LIBRARY databases were searched from inception to July 2021 for relevant randomized controlled trails (RCTs) on the effectiveness of HFNO versus standard facemask ventilation (FMV) in pre- and apenic oxygenation. Studies involving one of the following six indicators: (1) Arterial oxygen partial pressure (PaO), (2) End expiratory oxygen concentration (EtO), (3) Safe apnoea time, (4) Minimum pulse oxygen saturation (SpO), (5) Oxygenation (O) desaturation, (6) End expiratory carbon dioxide (EtCO) or Arterial carbon dioxide partial pressure(PaCO) were included. Due to the source of clinical heterogeneity in the observed indicators in this study, we adopt random-effects model for analysis, and express it as the mean difference (MD) or risk ratio (RR) with a confidence interval of 95% (95%CI). We conducted a risk assessment of bias for eligible studies and assessed the overall quality of evidence for each outcome.
Results: Fourteen RCTs and 1012 participants were finally included. We found the PaO was higher in HFNO group than FMV group with a MD (95% CI) of 57.38 mmHg (25.65 to 89.10; p = 0.0004) after preoxygenation and the safe apnoea time was significantly longer with a MD (95% CI) of 86.93 s (44.35 to 129.51; p < 0.0001) during anesthesia induction. There were no significant statistical difference in the minimum SpO, CO accumulation, EtO and O desaturation rate during anesthesia induction between the two groups.
Conclusions: This systematic review and meta-analysis suggests that HFNO should be considered as an oxygenation tool for patients during anesthesia induction. Compared with FMV, continuous use of HFNO during anesthesia induction can significantly improve oxygenation and prolong safe apnoea time in surgical patients.
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http://dx.doi.org/10.1186/s12871-022-01615-7 | DOI Listing |
Hua Xi Kou Qiang Yi Xue Za Zhi
February 2025
Stomatological College of Nanjing Medical University, Nanjing 210029, China.
Objectives: This study aims to compare the effects of two orthodontic treatment modalities for skeletal class Ⅲ malocclusion on specific changes in airway volume, morphology, palatal angle, mandibular rotation, and bone displacement. Results provide scientific evidence for the selection of orthodontic treatment plans and reduce the risk of developing obstructive sleep apnea hypopnea syndrome (OSAHS).
Methods: Thirty-six patients diagnosed with skeletal class Ⅲ malocclusion at the Department of Orthodontics, the Affiliated Stomatological Hospital of Nanjing Medical University from September 2018 to December 2023 were divided into two groups: orthodontic-orthognathic treatment group (18 patients) and camouflage orthodontic treatment group (18 patients).
OTO Open
January 2025
Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Division of Sleep Surgery Stanford University Stanford California USA.
Objective: The objective of this study is to determine the effectiveness and safety profile of coblation tongue base reduction (CBTR) compared to radiofrequency base of tongue (RFBOT) reduction on sleep-related outcomes in patients with obstructive sleep apnea (OSA).
Data Sources: PubMed, Scopus, Web of Science, and Cochrane Database of Systematic Reviews databases.
Review Methods: Literature search by 2 independent authors was conducted using the abovementioned databases.
Eur Arch Otorhinolaryngol
January 2025
Department of Otolaryngology-Head and Neck Surgery, Zain Hospital, Kuwait City, Kuwait.
Purpose: Obesity is a major risk factor in Obstructive sleep apnea (OSA), which is a prevalent disease that leads to significant morbidity. Multi-level Sleep Surgery (MLS) is a method of treatment for patients who cannot tolerate continuous positive airway pressure. Obesity has previously been identified as a risk factor that may decrease the success rate of MLS.
View Article and Find Full Text PDFCurr Opin Pediatr
December 2024
Division of Neonatology, Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada.
Purpose Of Review: This review outlines the prevalence and complications of apneas and intermittent hypoxemic events in preterm infants, examines current monitoring limitations in neonatal ICUs (NICUs), and explores emerging technologies addressing these challenges.
Recent Findings: New evidence from the Prematurity-Related Ventilatory Control (Pre-Vent) study, which analyzed cardiorespiratory data from 717 extremely preterm infants, exposes the varying frequency, duration, and severity of apneas, intermittent hypoxemia, bradycardias, and periodic breathing during hospitalization, and highlights the negative impact of intermittent hypoxemia on pulmonary outcomes at discharge. Although traditional monitoring methods cannot differentiate between apnea types and quantify their burden, recent advancements in sensor technologies and data integration hold promise for improving real-time detection and evaluation of apneas in the NICU.
J Pak Med Assoc
January 2025
Department of Endocrinology, Diabetes and Metabolism, Christian Medical College, Vellore, India, Non communicable disease unit, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.
Sleep stewardship is a systematic effort to ensure relaxed and restorative sleep, by optimizing pre-sleep, intra-sleep and post-sleep environment and ambience, in a rational manner. It includes not only sleep hygiene and prevention of sleeping pill abuse, but also macro- and meso-level interventions to improve sleep quality. The person living with sleep disorder, their family, members of society, health care professionals, and policy makers: all have a role to play in sleep stewardship.
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