Inspiratory crackles and mechanical events of breathing.
نویسندگان
چکیده
Nath, A. R. and Capel, L. H. (1974). Thorax, 29, 695-698. Inspiratory crackles and mechanical events of breathing. Forgacs (1967) has suggested that the timing of individual inspiratory crackles is determined by the elastic tension of the lung. This hypothesis was tested by recording the inspiratory crackles simultaneously with a recording of transpulmonary pressure, inspired volume, and inspiratory flow rate. The timing of an individual crackle was found to be closely associated with a particular transpulmonary
منابع مشابه
A Review of Effects of Inspiratory Muscle Training on Clinical and Functional Outcomes of Patients with Mechanical Ventilation
Background and Objectives: This review aims to explore the use of inspiratory muscle training (IMT) in patients with mechanical ventilation (MV). The topics were related to its effect on the duration of MV or weaning, respiratory symptoms or lung function, inspiratory muscle strength (IMS) or endurance, functional ability, and quality of life (QoL). Methods: Articles published in the last 10 ...
متن کاملMechanism of inspiratory and expiratory crackles.
OBJECTIVE Although crackles are frequently heard on auscultation of the chest of patients with common cardiopulmonary disorders, the mechanism of production of these sounds is inadequately understood. The goal of this research was to gain insights into the mechanism of crackle generation by systematic examination of the relationship between inspiratory and expiratory crackle characteristics. ...
متن کاملA Numerical Simulation of Inspiratory Airflow in Human Airways during Exercise at Sea Level and at High Altitude
At high altitudes, the air pressure is much lower than it is at sea level and contains fewer oxygen molecules and less oxygen is taken in at each breath. This requires deeper and rapid breathing to get the same amount of oxygen into the blood stream compared to breathing in air at sea level. Exercises increase the oxygen demand and make breathing more difficult at high altitude. In this study, ...
متن کاملBreathing pattern during acute respiratory failure and recovery.
The objective of this study was to compare the breathing pattern of patients who failed to wean from mechanical ventilation to the pattern during acute respiratory failure. We hypothesized that a similar breathing pattern occurs under both conditions. Breathing pattern, mouth occlusion pressure (P[0.1]) and maximum inspiratory pressure (P[I,max]) were measured in 15 patients during acute respir...
متن کاملبررسی نیاز‌های توجهی کنترل الگوی تنفس و ارتباط آن با پیامد‌های متابولیکی تنفس در افراد سالم
Objective: Normal breathing is essential for adjustment of natural metabolism of human body. Therefore, the aim of this study was to evaluate the control of breathing pattern in normal subjects both at rest and during cognitive loading. Materials & Methods: In this quasi-experimental study, 24 healthy subjects (14 males, 10 females) were selected by simple and convenient sampling. Spirometry...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Thorax
دوره 29 6 شماره
صفحات -
تاریخ انتشار 1974