Lia Bittencourt

ORCID: 0000-0001-7738-0927
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About
Contact & Profiles
Research Areas
  • Obstructive Sleep Apnea Research
  • Neuroscience of respiration and sleep
  • Sleep and related disorders
  • Sleep and Wakefulness Research
  • Tracheal and airway disorders
  • Cardiovascular and Diving-Related Complications
  • Circadian rhythm and melatonin
  • Dysphagia Assessment and Management
  • Restless Legs Syndrome Research
  • Sleep and Work-Related Fatigue
  • Menopause: Health Impacts and Treatments
  • Hormonal and reproductive studies
  • Temporomandibular Joint Disorders
  • Cardiovascular Syncope and Autonomic Disorders
  • Sexual function and dysfunction studies
  • Obesity, Physical Activity, Diet
  • Respiratory Support and Mechanisms
  • Nasal Surgery and Airway Studies
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Voice and Speech Disorders
  • Cerebrospinal fluid and hydrocephalus
  • Spinal Dysraphism and Malformations
  • Child Nutrition and Feeding Issues
  • Regulation of Appetite and Obesity
  • Eating Disorders and Behaviors

Universidade Federal de São Paulo
2015-2024

Fundação de Apoio à Universidade Federal de São Paulo
2005-2024

Instituto do Sono
2007-2023

Universidade Federal de Alagoas
2009-2022

Associação Fundo de Incentivo à Pesquisa
2008-2020

Universidade Federal de São Carlos
2019-2020

Universidade Federal de Sergipe
2019

Technical Design (United States)
2019

Design Science (United States)
2019

Fundação de Apoio à Escola Técnica
2018

The goal of the current study was to estimate prevalence sleep bruxism (SB) in general population using a representative sample 1,042 individuals who answered questionnaires and underwent polysomnography (PSG) examinations. After PSG, were classified into 3 groups: absence SB, low-frequency high-frequency SB. results indicated that by confirmed 5.5%. With PSG used exclusively as criterion for diagnosis, 7.4% regardless SB self-reported complaints. alone, 12.5%. Of 5.5% (n = 56) with 26 30...

10.1177/0022034513484328 article EN Journal of Dental Research 2013-05-20

A recent study of patients with moderate-severe obstructive sleep apnea (OSA) in Iceland identified three clinical clusters based on symptoms and comorbidities. We sought to verify this finding a new cohort examine the generalizability OSA an international ethnically diverse cohort.Using data 972 (apnea-hypopnea index [AHI] ≥ 15 events per hour) recruited from Sleep Apnea Global Interdisciplinary Consortium (SAGIC), we performed latent class analysis 18 self-reported symptom variables,...

10.1093/sleep/zsx214 article EN SLEEP 2018-01-05

To evaluate if a portable monitor could accurately measure the apnea-hypopnea index (AHI) in patients with suspicion of obstructive sleep apnea (OSA). Prospective and randomized. Sleep laboratory. 80 participants: 70 clinical OSA 10 subjects without OSA. N/A Three-order randomized evaluations were performed: (1) STD (Stardust II) used at participants' home (STD home), (2) simultaneously PSG lab (STD+PSG lab), (3) performed (PSG lab). Four AHI values generated analyzed: (a) home; (b) from...

10.1093/sleep/32.5.629 article EN SLEEP 2009-05-01

Using polysomnography, the gold standard for sleep assessment, this study aimed to describe objective prevalence of insomnia in São Paulo, Brazil, Epidemiologic Sleep Study cohort 1,101 adults (20-80 years old).Objective was defined by meeting 1 following criteria: onset latency >30 minutes (sleep initiating insomnia), wake after lasting maintenance total time <360 and a terminal wakefulness (insomnia with too short duration or early morning awakening), combination previous quantitative...

10.1002/ana.23945 article EN Annals of Neurology 2013-05-30

Abstract Study Objectives Poor adherence to continuous positive airway pressure (CPAP) commonly affects therapeutic response in obstructive sleep apnea (OSA). We aimed determine predictors of CPAP among participants the Sleep Apnea and cardioVascular Endpoints (SAVE) trial. Methods SAVE was an international, randomized, open trial plus usual care versus (UC) alone (45–75 years) with co-occurring moderate-to-severe OSA (≥12 episodes/h ≥4% oxygen desaturation) established cardiovascular (CV)...

10.1093/sleep/zsz152 article EN SLEEP 2019-10-01

Abstract Objectives/Hypothesis To identify upper airway and craniofacial abnormalities is the principal goal of clinical examination in patients with obstructive sleep apnea–hypopnea syndrome. The aim was to anatomical that could be seen during a simple physical determine their correlation index (AHI). Study Design Consecutive syndrome who were evaluated public otorhinolaryngology center studied. Methods Adult previously polysomnography met inclusion criteria. All subjects underwent history...

10.1097/00005537-200306000-00011 article EN The Laryngoscope 2003-06-01

This study was designed to evaluate the variability of apnoea–hypopnoea index (AHI) in 20 patients with obstructive sleep syndrome (OSAHS) and determine possible relationships this other polysomnographic parameters. The subjects were recorded on four consecutive nights. mean AHI values not significantly altered throughout recording nights ( P =0.67). intraclass correlation coefficient 0.92. However, Bland Altman plot showed that, individually, presented an important variability, which...

10.1046/j.1365-2869.2001.00255.x article EN Journal of Sleep Research 2001-09-26

The purposes of this study were to assess the relationship between different increments mandibular protrusion and a reduction obstructive sleep apnea (OSA) severity use magnetic resonance imaging temporomandibular joint (TMJ) morphology condyle position after insertion an oral appliance (OA). Six mild moderate OSA patients treated with titratable OA (KlearwayTM) changes in hypopnea index (AHI) secondary amount advancement evaluated. In seven patients, TMJ was compared before titration...

10.1093/sleep/25.5.505 article EN SLEEP 2002-08-01
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