EULIS-ESUT member / Board member of @endouroacademy / Developer of Stone MD App and simulators for endourology https://t.co/QpFwgi1RQE
Apr 29, 2020 • 6 tweets • 4 min read
RIRS and Pressure
1/ Hi everyone! Warning - not a "COVID" tweet
I'd like to present a little summary on intrarenal pressure (IRP) during RIRS
1 cmH2O = 0.73 mmHg
IRP should be kept lower than 30 cm H2O
Lowest irrigation flow (IF) to keep a clear vision is 21 ml/min
2/
With no Ureteral Access Sheath (UAS) gravity irrigation pressure of 50, 100, and 200 cm H2O will lead to 15, 30, and 55 cm H2O of IRP with IF of 23, 47 and 80 mL/min correspondingly
The maximal IRP during manual irrigation can reach 598.4 cm H2O
