منابع مشابه
Flow dynamics and characterization of a cough.
UNLABELLED Airborne disease transmission has always been a topic of wide interests in various fields for decades. Cough is found to be one of the prime sources of airborne diseases as it has high velocity and large quantity of droplets. To understand and characterize the flow dynamics of a cough can help to control the airborne disease transmission. This study has measured flow dynamics of coug...
متن کاملSeasonality and dynamics of whooping cough
Whooping cough (pertussis) dynamics provide an interesting disease ecology case study. Unlike other childhood diseases, the observed patterns of pertussis dynamics are found very diverse and are not easily captured by simple deterministic models. This has led to the current understanding that the disease dynamics can only be explained by adding stochasticity into the models. In this work, we de...
متن کاملCough dynamics in the post-thoracotomy state.
A series of 24 adult male patients undergoing thoracotomy were found to have a reduction in their cough pressures in the immediate postoperative period to 29 percent of their preoperative values. Cough pressures still averaged only 50 percent of control values one week following surgery, with slow return toward normal over the ensuing three weeks. Pain associated with the surgical wound appeare...
متن کاملAirway dynamics, oesophageal pressure and cough.
This study hypothesizes that: peak supramaximal airflow during cough reflects expiratory muscle effort, and that expiratory muscle function during cough might be assessed from the airflow signal alone. We monitored airflow and oesophageal pressure (Poes) in normal subjects during cough generated under two conditions: 1) voluntarily from functional residual capacity (FRC); and 2) involuntarily a...
متن کاملThe dynamics of cough in health and in chronic bronchitis.
The bronchi and the intrathoracic trachea are compressed and narrowed during coughing or forced expiration. In normal people the narrowing is evenly distributed; in patients who have airflow obstruction it is greater and more irregular and sometimes causes almost complete obliteration of the main bronchi (Di Rienzo, 1949; Gandevia, 1963). The narrowing results from a transmural pressure gradien...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1970
ISSN: 0007-0912
DOI: 10.1093/bja/42.4.280