Evidence Base

Question 1

According to Bach & Saporito (1996), what PCF value indicates successful extubation/decannulation?

Answer 1

> 160 L/min

A PCF <160 L/min is associated with failures.

Question 2

What did Chatwin et al (2003) find about MI-E compared to other methods?

Answer 2

MI-E significantly increases PCF

Insufflation + exsufflation is more effective than other combinations.

Question 3

In the study by Trebbia (2005), what combination was found to improve PCF more than either method alone?

Answer 3

Combined maximal insufflation + MAC

This combination was shown to be more effective than using either method alone.

Question 4

What were the findings of Chatwin & Simonds (2009) regarding MI-E?

Answer 4

• Reduces treatment time
• More fatigue reported
• Both protocols helped patients

These findings highlight the effectiveness and challenges of MI-E.

Question 5

What did Bach (1993–2002) conclude about MI-E or MAC?

Answer 5

• Can exceed normal cough flows
• Improved survival
• Reduced hospitalisation
• PCF >270 L/min is protective against acute respiratory events

These results emphasize the benefits of these techniques in respiratory care.