Manipulation of ventilator settings to prevent active expiration against positive pressure inflation.

نویسندگان

  • D Field
  • A D Milner
  • I E Hopkin
چکیده

Recent publications have suggested that in infants receiving artificial ventilatory support a particular pattern of interaction between spontaneous breaths and ventilator inflations (active expiration against each ventilator inflation) may be important in the production of pneumothoraces. We have looked at patterns of interaction from 47 preterm infants studied on 51 occasions. We found that active expiration against the ventilator occurred on a total of 16 occasions. This pattern was prevented on 14 occasions by altering the ventilator settings. In two other babies, the pattern persisted but neither baby developed a pneumothorax.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Are esophageal pressure measurements important in clinical decision-making in mechanically ventilated patients?

Low-tidal-volume ventilation strategies are clearly beneficial in patients with acute lung injury and acute respiratory distress syndrome, but the optimal level of applied positive end-expiratory pressure (PEEP) is uncertain. In patients with high pleural pressure on conventional ventilator settings, under-inflation may lead to atelectasis, hypoxemia, and exacerbation of lung injury through "at...

متن کامل

Effective Strategy for Newborn Screening for Congenital Hypothyroidism.

2. Infants can actively tighten their abdominal muscles that can prevent gas entering the lungs during inflation; often termed ‘splinting’ [3]. Forced expiration and splinting cause hypoxemic episodes due to low lung volume and low VT delivery, causing obstruction’ and ‘low VT’ alarms. Fig. 1 shows a recording from a 1000-g baby ventilated with assist control (AC) and VG ventilation at a rate o...

متن کامل

Volume guarantee ventilation, interrupted expiration, and expiratory braking.

BACKGROUND In volume guarantee ventilation with the Dräger Babylog 8000 ventilator, inspiratory and expiratory flows are monitored and the expiratory tidal volume calculated following each inflation. The pressure for the next inflation is modified to ensure the expired tidal volume is close to the set value. AIM To investigate interrupted expiration observed during volume guarantee ventilatio...

متن کامل

Respiratory controversies in the critical care setting. Does airway pressure release ventilation offer important new advantages in mechanical ventilator support?

Airway pressure-release ventilation (APRV) is a mechanical ventilation strategy that is usually time-triggered but can be patient-triggered, pressure-limited, and time-cycled. APRV provides 2 levels of airway pressure (P(high) and P(low)) during 2 time periods (T(high) and T(low)), both set by the clinician. APRV usually involves a long T(high) and a short T(low). APRV uses an active exhalation...

متن کامل

Physiological studies of the effects of intermittent positive pressure breathing on cardiac output in man.

Three types of positive pressure breathing have been differentiated : a) continuous positive pressure breathing where a pressure above atmospheric is maintained in the lungs throughout the respiratory cycle, b) expiratory positive pressure breathing in which a pressure above atmospheric is present during the expiratory phase of breathing, and c) intermittent positive pressure breathing (IPPB), ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Archives of disease in childhood

دوره 60 11  شماره 

صفحات  -

تاریخ انتشار 1985