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Your search keyword '"Andrea Laguzzi"' showing total 2 results
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2 results on '"Andrea Laguzzi"'

1. Effects of CPAP and FiO2 on respiratory effort and lung stress in early COVID-19 pneumonia: a randomized, crossover study

Author

Lorenzo Giosa, Patrick Duncan Collins, Martina Sciolla, Francesca Cerrone, Salvatore Di Blasi, Matteo Maria Macrì, Luca Davicco, Andrea Laguzzi, Fabiana Gorgonzola, Roberto Penso, Irene Steinberg, Massimo Muraccini, Alberto Perboni, Vincenzo Russotto, Luigi Camporota, Giacomo Bellani, and Pietro Caironi

Subjects
COVID-19, Respiratory failure, Helmet-CPAP, Non-rebreather mask, Venturi mask, Respiratory effort, Medical emergencies. Critical care. Intensive care. First aid, RC86-88.9
Abstract

Abstract Background in COVID-19 acute respiratory failure, the effects of CPAP and FiO2 on respiratory effort and lung stress are unclear. We hypothesize that, in the compliant lungs of early Sars-CoV-2 pneumonia, the application of positive pressure through Helmet-CPAP may not decrease respiratory effort, and rather worsen lung stress and oxygenation when compared to higher FiO2 delivered via oxygen masks. Methods In this single-center (S.Luigi Gonzaga University-Hospital, Turin, Italy), randomized, crossover study, we included patients receiving Helmet-CPAP for early (

Published
2023
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2. Vena Cava Responsiveness to Controlled Isovolumetric Respiratory Efforts

Author

Paolo Pasquero, Luca Mesin, Massimo Porta, Marco Benzo, Andrea Laguzzi, Alessandro Messere, Silvestro Roatta, and Anna Folino

Subjects
Supine position, Radiological and Ultrasound Technology, Pulmonary gas pressures, business.industry, Diaphragmatic breathing, 030208 emergency & critical care medicine, 030204 cardiovascular system & hematology, Inferior vena cava, 03 medical and health sciences, 0302 clinical medicine, Functional residual capacity, medicine.vein, Anesthesia, cardiovascular system, Breathing, Medicine, Radiology, Nuclear Medicine and imaging, Respiratory system, business, Isovolumetric contraction
Abstract

Objectives Respirophasic variation of inferior vena cava (IVC) size is affected by large variability with spontaneous breathing. This study aims at characterizing the dependence of IVC size on controlled changes in intrathoracic pressure. Methods Ten healthy subjects, in supine position, performed controlled isovolumetric respiratory efforts at functional residual capacity, attaining positive (5, 10, and 15 mmHg) and negative (−5, −10, and −15 mmHg) alveolar pressure levels. The isovolumetric constraint implies that equivalent changes are exhibited by alveolar and intrathoracic pressures during respiratory tasks. Results The IVC cross-sectional area equal to 2.88 ± 0.43 cm2 at baseline (alveolar pressure = 0 mmHg) was progressively decreased by both expiratory and inspiratory efforts of increasing strength, with diaphragmatic efforts producing larger effects than thoracic ones: −55 ± 15% decrease, at +15 mmHg of alveolar pressure (P

Published
2017
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