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Measurement of thoraco-abdominal synchrony using respiratory inductance plethysmography: technical aspects and a proposal to overcome its limitations.
Sayas, Javier; Lalmolda, Cristina; Corral, Marta; Flórez, Pablo; Hernández-Voth, Ana; Janssens, Jean Paul; Rabec, Claudio; Langevin, Bruno; Lofaso, Frédéric; Carlucci, Annalisa; Llontop, Claudia; Winck, Joao Carlos; Bermejo, Jesús González; Lujan, Manel.
Afiliação
  • Sayas J; Pulmonology Service, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain.
  • Lalmolda C; Servei de Pneumologia, Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain.
  • Corral M; Pulmonology Service, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain.
  • Flórez P; Servei de Pneumologia, Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain.
  • Hernández-Voth A; Pulmonology Service, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain.
  • Janssens JP; Division of Pneumology, Geneva University Hospitals, Geneva, Switzerland.
  • Rabec C; Medicine, University of Geneva, Geneva, Switzerland.
  • Langevin B; Department of Pulmonary Medicine and Intensive Care Unit. Constitutive Reference Center for Rare Pulmonary Diseases, University Hospital of Dijon Bourgogne, Dijon, France.
  • Lofaso F; Réanimation, Pôle Soins Aigus, Centre Hospitalier Alès, Alès, France.
  • Carlucci A; INSERM-UMR 1179, Versailles Saint-Quentin University, Paris Saclay University, France.
  • Llontop C; Department of Physiology, AP-HP, Hôpital Raymond Poincaré, Garches, France.
  • Winck JC; Dipartimento di Medicina e Chirurgia, Università Insubria Varese-Como. Pneumologia Riabilitativa. Istituti Clinici Scientifici Maugeri-Pavia, Pavia, Italy.
  • Bermejo JG; Unité ambulatoire d'appareillage respiratoire de domicile. Département R3S (Respiration Réanimation, Réhabilitation, Sommeil), Groupe hospitalier Pitié-Salpêtrière, Paris, France.
  • Lujan M; UniC Cardiovascular R&D Centre, Faculdade de Medicina da Universidade do Porto, Porto, Portugal.
Expert Rev Respir Med ; 18(3-4): 227-236, 2024.
Article em En | MEDLINE | ID: mdl-38829281
ABSTRACT

BACKGROUND:

Thoraco-abdominal asynchrony (TAA) is usually assessed by respiratory inductance plethysmography. The main parameter used for its assessment is the calculation of the phase angle based on Lissajous plots. However, there are some mathematical limitations to its use. RESEARCH DESIGN AND

METHODS:

Sequences of five breaths were selected from a) normal subjects, b) COPD patients, both at rest and during exercise, and c) patients with obstructive apnea syndrome. Automated analysis was performed calculating phase angle, loop rotation (clockwise or counterclockwise), global phase delay and loop area. TAA severity was estimated quantitatively and in subgroups.

RESULTS:

2290 cycles were analyzed (55% clockwise rotation). Phase angle ranged from -86.90 to + 88.4 degrees, while global phase delay ranged from -179.75 to + 178.54. Despite a good correlation with global phase delay (p < 0.01, ANOVA test), phase angle and loop area were not able to correctly classify breaths with severe deviation and paradoxical movements (p=ns, Bonferroni post hoc test).

CONCLUSIONS:

Global phase delay covers the whole spectrum of TAA situations in a single value. It may be a relevant parameter for diagnosis and follow-up of clinical conditions leading to TAA. CLINICAL TRIAL REGISTRATION The trial from which the traces were obtained was registered at ClinicalTrials.gov ;(identifier NCT04597606).
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Pletismografia / Doença Pulmonar Obstrutiva Crônica Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Pletismografia / Doença Pulmonar Obstrutiva Crônica Idioma: En Ano de publicação: 2024 Tipo de documento: Article