Ahmed Dhia El-Euch | Universite du Maine (original) (raw)

Ahmed Dhia El-Euch

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Papers by Ahmed Dhia El-Euch

Research paper thumbnail of Association between age and clinical characteristics and outcomes of SARS COV2 pneumonia

Research paper thumbnail of Association between age and clinical characteristics and outcomes of SARS COV2 pneumonia

Research paper thumbnail of Interest of searching diabetes at the first visit in a population with SARS COV2

Research paper thumbnail of Factors involved in poor asthma medication adherence and barriers to the control of the disease

Research paper thumbnail of Applying machine learning algorithms to predict outcomes in hospitalized COVID-19 patients

Respiratory infections and bronchiectasis

Research paper thumbnail of Comparing right ventricular function in patients with severe Obstructive Sleep Apnea when treated and not treated with Continuous Positive Airway Pressure

Research paper thumbnail of Continuous Positive Airway Pressure Effects on Regional Lung Aeration in Patients With COPD

Chest, 2010

The effects of nasal continuous positive airway pressure (CPAP) on the lung parenchyma of patient... more The effects of nasal continuous positive airway pressure (CPAP) on the lung parenchyma of patients with COPD, to our knowledge, have never been assessed by high-resolution CT (HRCT) scanning. HRCT scans were obtained at the apex, hilum, and basis of the lungs at functional residual capacity while on spontaneous respiration and at the end of CPAP trials of 5 cm water (H(2)O), 10 cm H(2)O, and 15 cm H(2)O in 11 stable patients with COPD and eight healthy volunteers. Lung aeration was assessed by quantitative density parameters and by qualitative analysis of each CT image after processing by means of a density-based color-mask computational algorithm. The quantitative parameters were density histograms, the relative area of the lungs with attenuation values < -950 Hounsfield units (percentage of hyperaerated areas) and the 15th percentile (the density value separating the 15% voxels of least density). A CPAP of 5 cm H(2)O caused little increase in lung aeration in both groups, but in some patients with COPD, CPAP deflated some regions of the lungs. CPAP levels of 10 cm H(2)O and 15 cm H(2)O increased the emphysematous zones in all sectors of the lungs, including dorsal and apical regions in patients with COPD compared to little hyperaeration predominantly in the ventral areas in healthy volunteers. Nasal CPAP causes variable effects on regional lung aeration in relation to the applied pressure and the regional distribution of emphysema in patients with COPD. Low pressure levels may cause regional lung deflation in some patients. High levels increase the emphysematous areas wherever they are located inside the lungs.

Research paper thumbnail of Characteristics of obese patients admitted in a department of pneumology with acute hypercapnic respiratory failure (AHRF): an observational study in a north African population

Noninvasive ventilatory support, 2021

Research paper thumbnail of m V m Ultrasound for Surgeons

While the authors, editors, sponsor and publisher believe that drug selection and dosage and the ... more While the authors, editors, sponsor and publisher believe that drug selection and dosage and the specifications and usage of equipment and devices, as set forth in this book, are in accord with current recommendations and practice at the time of publication, they make no warranty, expressed or implied, with respect to material described in this book. In view of the ongoing research, equipment development, changes in governmental regulations and the rapid accumulation of information relating to the biomedical sciences, the reader is urged to carefully review and evaluate the information provided herein. Frankel, Heidi L. Ultrasound for surgeons / Heidi L. Frankel. p. ; cm. --(Vademecum) Includes index.

Research paper thumbnail of Association between age and clinical characteristics and outcomes of SARS COV2 pneumonia

Research paper thumbnail of Association between age and clinical characteristics and outcomes of SARS COV2 pneumonia

Research paper thumbnail of Interest of searching diabetes at the first visit in a population with SARS COV2

Research paper thumbnail of Factors involved in poor asthma medication adherence and barriers to the control of the disease

Research paper thumbnail of Applying machine learning algorithms to predict outcomes in hospitalized COVID-19 patients

Respiratory infections and bronchiectasis

Research paper thumbnail of Comparing right ventricular function in patients with severe Obstructive Sleep Apnea when treated and not treated with Continuous Positive Airway Pressure

Research paper thumbnail of Continuous Positive Airway Pressure Effects on Regional Lung Aeration in Patients With COPD

Chest, 2010

The effects of nasal continuous positive airway pressure (CPAP) on the lung parenchyma of patient... more The effects of nasal continuous positive airway pressure (CPAP) on the lung parenchyma of patients with COPD, to our knowledge, have never been assessed by high-resolution CT (HRCT) scanning. HRCT scans were obtained at the apex, hilum, and basis of the lungs at functional residual capacity while on spontaneous respiration and at the end of CPAP trials of 5 cm water (H(2)O), 10 cm H(2)O, and 15 cm H(2)O in 11 stable patients with COPD and eight healthy volunteers. Lung aeration was assessed by quantitative density parameters and by qualitative analysis of each CT image after processing by means of a density-based color-mask computational algorithm. The quantitative parameters were density histograms, the relative area of the lungs with attenuation values < -950 Hounsfield units (percentage of hyperaerated areas) and the 15th percentile (the density value separating the 15% voxels of least density). A CPAP of 5 cm H(2)O caused little increase in lung aeration in both groups, but in some patients with COPD, CPAP deflated some regions of the lungs. CPAP levels of 10 cm H(2)O and 15 cm H(2)O increased the emphysematous zones in all sectors of the lungs, including dorsal and apical regions in patients with COPD compared to little hyperaeration predominantly in the ventral areas in healthy volunteers. Nasal CPAP causes variable effects on regional lung aeration in relation to the applied pressure and the regional distribution of emphysema in patients with COPD. Low pressure levels may cause regional lung deflation in some patients. High levels increase the emphysematous areas wherever they are located inside the lungs.

Research paper thumbnail of Characteristics of obese patients admitted in a department of pneumology with acute hypercapnic respiratory failure (AHRF): an observational study in a north African population

Noninvasive ventilatory support, 2021

Research paper thumbnail of m V m Ultrasound for Surgeons

While the authors, editors, sponsor and publisher believe that drug selection and dosage and the ... more While the authors, editors, sponsor and publisher believe that drug selection and dosage and the specifications and usage of equipment and devices, as set forth in this book, are in accord with current recommendations and practice at the time of publication, they make no warranty, expressed or implied, with respect to material described in this book. In view of the ongoing research, equipment development, changes in governmental regulations and the rapid accumulation of information relating to the biomedical sciences, the reader is urged to carefully review and evaluate the information provided herein. Frankel, Heidi L. Ultrasound for surgeons / Heidi L. Frankel. p. ; cm. --(Vademecum) Includes index.

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