Yinghua Li

Hi, Actually, the volume guarantee does just affect ventilation, which means CO2 elimination. The tidal volume in HFOV is completely different from the conventional ventilations tidal volume which means how much the lungs should be inflated. To prevent from atelectasis, it is most important to keep adequate mean airway pressure. It is very much up to the Dead Space if you keep normal ventilation to those tiny bebis. I have never used MAP less than 9 cm because of trends of atelectasis, especially due to the small diameter of the ETT.

I totally agree with Stefan. Since the diagnosis has been made, you have to send the mother to regional center where the EXIT- Ex-Utero Intrapartum Treatment can be performed. Best regards Yinghua Li

Hi doctors, everything you are talking about is right, especially theoretically about how changing of frequency affects tidalvolym in HFOV+ VG mode. In my clinical experience it doesn't work in either Leoni plus, Dräger babylog 500, or Servo N. You have to increase frequency in order to increase the tidalvolym although I HFOV+VG mode in those ventilators. Sensomedics is an old machine with higher/highest power for elimination of CO2 but without VG function Best regards Yinghua Li

It is interseting! It seems the almost compensated respiratory alkalosis by metablic acidosis. What were the blood gas values just before ventilation was taken away. What was the PIP for the patient when he was ventilated?