Ultrasound technique for neuraxial procedures

Abstract

providing the high speed and pressure drop that are necessary for the Coanda effect to occur. 2 The distance from the nozzle to the bifurcation was also above the threshold required for the subsequent unidirectional branch flow (i.e. ,2 nozzle widths). 3 If the Coanda effect were established in the right side of the trachea, flow to the left lung would only take place after pressure in the right lung equilibrates with the ventilating pressure (i.e. no more pressure gradient), thus explaining the delayed ventilation of the left lung that was observed clinically.When suitable geometry of the tracheal tube tip and trachea occur, as seen in this case, the bifurcating structure of the trachea theoretically provides a suitable medium for the occurrence of the Coanda effect. However, the Coanda effect has not been described before in human airways beyond the glottis, but considering what a clinically significant problem may result from its occurrence further investigation of the phenomenon using a physical or mathematical model is warranted.

Obstetrik anestezide neler oluyor?

“…İngiltere'de bulunan Ulusal Sağlık ve Klinik Mükemmellik Endüstrisi, nöroaksiyel bloklarda özellikle de erişkinlerde epidural kateterizasyon sırasında USG kullanımını önermektedir (49). Bu arada teknolojik gelişmelerde hız kesmeden ilerlemektedir.…”