Lung Ultrasound Characterization of Bullous Emphysema
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 35
- 试验地点
- 1
- 主要终点
- Prevalence of various ultrasound signs in the bullous emphysema group, according to a predetermined sonographic evaluation form, following a standardized segmentation of the chest
研究概览
简要总结
Chronic Obstructive Pulmonary Disease (COPD) is a frequent disease affecting a growing number of adults in the world which is responsible for a large public health burden through heavy morbidity and mortality.
Emphysema is one of a wide spectrum of pulmonary complications linked to COPD, defined as the abnormal permanent enlargement of the airspaces distal to the terminal bronchioles accompanied by destruction of the alveolar wall. Disease progression is correlated to worsening and enlargement of emphysema lesions, sometimes conflating in sizeable bullae, deleterious to normal mechanical pulmonary function. Bullous emphysema (BE) is sometimes eligible to invasive curative treatment through surgery or interventional bronchoscopy.
Diagnosis of BE relies on computerized tomodensitometry (CT), the gold-standard for evaluating pulmonary parenchyma. However, CT is not always available, and bullous emphysema can present as pneumothorax on chest radiography.
The practice of lung ultrasound is currently growing in respiratory medicine and emergency departments owing to an increasing amount of evidence showcasing its reliability as a diagnostic tool, most notably for pneumothorax and other pleural diseases. Despite BE having been reported to present similarly to pneumothorax in ultrasound, its characteristics have not yet been precisely described.
The primary aim of this study is to describe BE using lung ultrasound. Participants with known BE on CT will undergo a simple ultrasound examination. The secondary aim is to compare the characteristics of BE to those of pneumothorax using lung ultrasound. To achieve this, a second group of participants with currently treated pneumothorax will also undergo lung ultrasound.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Bullous emphysema group
- •Consultation or scheduled hospitalization in a Pulmonary Medicine department
- •Past medical history of emphysema on computerized tomodensitometry dating less than two years
- •Bullous emphysema with subpleural contact of two or more intercostal spaces on tomodensitometry
- •Pneumothorax group
- •Hospitalized in a Pulmonary Medicine department for the treatment of a pneumothorax
- •Patent pneumothorax visible on chest x-ray dating less than 24 hours
排除标准
- •Bullous emphysema group
- •Current pneumothorax
- •Past medical history of pleurodesis or pleural thickening homolateral to the bullous emphysema
- •All patients
- •Organ failure (hemodynamic, neurological, respiratory)
- •Recent thoracic surgery dating less than 7 days with subcutaneous emphysema
- •Minor participant or otherwise deprived of their freedom or their ability to consent freely
- •No affiliation to social security
结局指标
主要结局
Prevalence of various ultrasound signs in the bullous emphysema group, according to a predetermined sonographic evaluation form, following a standardized segmentation of the chest
时间窗: 2 years
The following sonographic signs will be investigated : * Pleural sliding (presence/absence) * Z lines (presence/absence) * A line visibility increase (presence/absence) * B line (number per field) * pulmonary pulse (presence/absence) * lung-point (presence/absence) * intercostoaeric line thickness (in mm) For qualitative signs, the investigators will present proportions Quantitative signs will be reported using means, medians and standard-deviations
次要结局
- Statistical comparison of ultrasound characteristics of bullous emphysema and pneumothorax(2 years)
- Prevalence of various ultrasound signs in the pneumothorax group, according to a predetermined sonographic evaluation form, following a standardized segmentation of the chest(2 years)