Can optoelectronic plethysmography be used to evaluate the thoracoabdominal kinematics of people with morbidly obesity? A systematic review

Branco, Joaquim Henrique Lorenzetti; Branco, Ruy Luiz Lorenzetti; Filho, Vicente Paulo Ponte Souza; Silveira, Bruna da; Pause, Kethlyn Tamara Monteiro; Artismo, Regiana dos Santos; Matte, Darlan Laurício

doi:10.1016/j.hrtlng.2021.07.003

“…First, we have validated the method that we used to assess ventilatory function. Although partially validated 21 , OEP was recently proved to be a useful tool to evaluate the thoraco-abdominal kinematics of people with morbid obesity 17 . We have provided a complete validation considering both sexes, different tidal volumes, and two postures.…”

Section: Discussionmentioning

confidence: 99%

“…Results are satisfactory and OEP proved to be viable in subjects within BMI = 55 (the maximal value in our subjects with obesity). More studies are therefore needed to demonstrate the feasibility of OEP in people with a BMI greater than this value 17 .…”

Section: Discussionmentioning

confidence: 99%

“…Opto-electronic plethysmography (OEP) provides a very effective and accurate evaluation of thoraco-abdominal kinematics in different postures and conditions 9 – 14 . OEP was already used to evaluate the thoraco-abdominal kinematics of children 15 , adolescents 16 and adults with obesity up to BMI ~ 50 kg/m 2 17 – 21 . However, the marker configurations and the corresponding geometrical models of OEP were designed and validated on normal-weighted subjects 22 , 23 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pulmonary and chest wall function in obese adults

Lo Mauro,

Tringali,

Codecasa

et al. 2023

Sci Rep

1

0

View full text Add to dashboard Cite

Obesity is frequently associated with breathing disorders. To investigate if and how the highest levels of obesity impact respiratory function, 17 subjects with obesity (median age: 49 years; BMI: 39.7 kg/m2, 8 females) and 10 normal-weighted subjects (49 years; 23.9 kg/m2, 5 females) were studied. The abdominal volume occupied 41% in the obese group, being higher (p < 0.001) than the normal-weighted group (31%), indicating accumulation of abdominal fat. Restrictive lung defect was present in 17% of subjects with obesity. At rest in the supine position, subjects with obesity breathed with higher minute ventilation (11.9 L/min) and lower ribcage contribution (5.7%) than normal weighted subjects (7.5 L/min, p = 0.001 and 31.1%, p = 0.003, respectively), thus indicating thoracic restriction. Otherwise healthy obesity might not be characterized by a systematic restrictive lung pattern. Despite this, another sign of restriction could be poor thoracic expansion at rest in the supine position, resulting in increased ventilation. Class 3 obesity made respiratory rate further increased. Opto-electronic plethysmography and its thoraco-abdominal analysis of awake breathing add viable and interesting information in subjects with obesity that were complementary to pulmonary function tests. In addition, OEP is able to localize the restrictive effect of obesity.

show abstract

“…First of all, we have validated the method that we used to the assess ventilatory function. Although partially validated [23], OEP was recently proved to be a useful tool to evaluate the thoraco-abdominal kinematics of people with morbidly obesity [19]. We have provided a complete valibration considering both sexes, different tidal volumes and two postures.…”

Section: Opto-electronic Plethysmographymentioning

confidence: 99%

Does the level of obesity impact on the respiratory function in adults?

LoMauro,

Tringali,

Codecasa

et al. 2023

Clinical Respiratory Physiology, Exercise and Functional Imaging

0

View full text Add to dashboard Cite

Obesity is frequently associated to breathing disorders. In order to investigate if and how the level of obesity impact on the respiratory function, 10 obese class 2 (median age: 51 years; BMI: 38.7 kg/m 2, 5 females), 7 obese class 3 patients (41 years; 45.7 kg/m 2 , 3 females) and 10 non-obese subjects (49 years; 23.9 kg/m 2 , 5 females) were studied. Patients were characterized by abdominal obesity, with abdominal volume occupying the 40% and 42% in class 2 and 3, being higher (p<0.001) than non-obese group (31%). Spirometry and lung volumes did not differ between the two classes, while the supine position induced an important reduction of functional residual capacity. At rest, breathing frequency was higher in class 3 (19 breaths/min, p=0.025). In supine position obese patients breathed with higher minute ventilation (class 12.1: L/min, class 2: 11.4 L/min) and lower ribcage contribution (class 3: 4.9%, class 2: 6.1%) than non-obese subjects (7.5 L/min, p= 0.001 and 31.1%, p=0.003, respectively), indicating thoracic restriction. Otherwise healthy obesity might not be characterized by restrictive lung pattern. Other sign of restriction could be poor thoracic expansion at rest in supine position, resulting in increased ventilation. Class 3 obesity made respiratory rate further increase.According to body mass index (BMI), obesity is frequently subdivided into 3 categories: class 1: BMI of 30 to < 35; class 2: BMI of 35 to < 40 and class 3: BMI ≥ 40 [2, 3]. The latter is sometimes categorized as "severe" obesity and it can contribute to the development of several serious concomitant diseases. These comprise metabolic syndrome, type 2 diabetes, heart disease, hypertension, atherosclerosis, certain cancers, osteoarthritis, depression and breathing issues. Obesity hypoventilation syndrome[4] is a breathing disorder that affects some people who have severe obesity causing higher level of carbon dioxide and lower level of oxygen in the blood. If left untreated, it can lead to serious and even life-threatening health problems. However, obesity hypoventilation syndrome is not the only breathing concern related to obesity. The respiratory symptoms and complications, obesity is frequently associated with, include breathing at lower lung volumes, decreased thoracic and lung compliance, increased respiratory resistance secondary from the reduction in lung volumes, reduction in respiratory muscle strength, heterogeneity of ventilation distribution, increased pulmonary diffusion and hypercapnic respiratory failure [5, 6]. These features are caused by the numerous cytokines produced by adipocytes and by the accumulation of adipose tissue [7]. The former induce systemic in ammation, the latter a direct mechanical change and charge due to fat deposition on the chest wall, abdomen, and upper airway. In addition to such augmented elastic load due to the mass burdening on the chest wall, obese subjects have also to overcome higher resistive load. Supine positioning was proved to even exacerbated these features because of the positi...

show abstract

Does the level of obesity impact on the respiratory function in adults?

LoMauro

¹

,

Tringali

²

,

Codecasa

³

et al. 2022

Preprint

0

View full text Add to dashboard Cite

Obesity is frequently associated to breathing disorders. In order to investigate if and how the level of obesity impact on the respiratory function, 10 obese class 2 (median age: 51 years; BMI: 38.7 kg/m2, 5 females), 7 obese class 3 patients (41 years; 45.7 kg/m2, 3 females) and 10 non-obese subjects (49 years; 23.9 kg/m2, 5 females) were studied. Patients were characterized by abdominal obesity, with abdominal volume occupying the 40% and 42% in class 2 and 3, being higher (p<0.001) than non-obese group (31%). Spirometry and lung volumes did not differ between the two classes, while the supine position induced an important reduction of functional residual capacity. At rest, breathing frequency was higher in class 3 (19 breaths/min, p=0.025). In supine position obese patients breathed with higher minute ventilation (class 12.1: L/min, class 2: 11.4 L/min) and lower ribcage contribution (class 3: 4.9%, class 2: 6.1%) than non-obese subjects (7.5 L/min, p= 0.001 and 31.1%, p=0.003, respectively), indicating thoracic restriction. Otherwise healthy obesity might not be characterized by restrictive lung pattern. Other sign of restriction could be poor thoracic expansion at rest in supine position, resulting in increased ventilation. Class 3 obesity made respiratory rate further increase.

show abstract

Can optoelectronic plethysmography be used to evaluate the thoracoabdominal kinematics of people with morbidly obesity? A systematic review

Cited by 3 publications

References 24 publications

Pulmonary and chest wall function in obese adults

Pulmonary and chest wall function in obese adults

Does the level of obesity impact on the respiratory function in adults?

Does the level of obesity impact on the respiratory function in adults?

Contact Info

Product

Resources

About