The textbook and national registry claim every 5 minutes.
I have worked at hospitals where the NIBP was set to every 3 minutes by default in the code bays.
Now while this study was done in surgery, on patients recieving spinal anesthesia, should we start looking at re-examining how often EMS should be taking vitals in unstable patients?
What are the chances that the mechanism inducing hypotension changes the ability to detect it?
Detection of Hypotension During Caesarean Section With Continuous Non-invasive Arterial Pressure Device or Intermittent Oscillometric Arterial Pressure Measurement
C. Ilies; H. Kiskalt; D. Siedenhans; P. Meybohm; M. Steinfath; B. Bein; R. Hanss
Authors and Disclosures
Posted: 09/10/2012; Br J Anaesth. 2012;109(3):413-419. © 2012 Oxford University Press
"Results When averaged over all cycles, the lowest systolic AP identified by CNAP in each cycle [105 mm Hg, (24.4)] was significantly lower (P<0.001) than the average of the individual corresponding single NIAP measurements [126 mm Hg (22.1)] and highest CNAP average [126 mm Hg (24.5)]. Hypotension (systolic AP <100 mm Hg) was detected in 39% of all cycles with CNAP and in 9% with NIAP. Hypotension was detected in 91% of the patients based on CNAP and in 55% based on NIAP. Fetal acidosis defined by an umbilical vein pH under 7.25 did not occur when the lowest systolic AP measured by CNAP was above 100 mm Hg.
Conclusions The CNAP device detected more hypotensive episodes after SPA and significantly lower AP compared with NIAP. AP monitoring based on CNAP may improve haemodynamic management in this patient population with potential benefit for the fetus."
I have worked at hospitals where the NIBP was set to every 3 minutes by default in the code bays.
Now while this study was done in surgery, on patients recieving spinal anesthesia, should we start looking at re-examining how often EMS should be taking vitals in unstable patients?
What are the chances that the mechanism inducing hypotension changes the ability to detect it?
Detection of Hypotension During Caesarean Section With Continuous Non-invasive Arterial Pressure Device or Intermittent Oscillometric Arterial Pressure Measurement
C. Ilies; H. Kiskalt; D. Siedenhans; P. Meybohm; M. Steinfath; B. Bein; R. Hanss
Authors and Disclosures
Posted: 09/10/2012; Br J Anaesth. 2012;109(3):413-419. © 2012 Oxford University Press
"Results When averaged over all cycles, the lowest systolic AP identified by CNAP in each cycle [105 mm Hg, (24.4)] was significantly lower (P<0.001) than the average of the individual corresponding single NIAP measurements [126 mm Hg (22.1)] and highest CNAP average [126 mm Hg (24.5)]. Hypotension (systolic AP <100 mm Hg) was detected in 39% of all cycles with CNAP and in 9% with NIAP. Hypotension was detected in 91% of the patients based on CNAP and in 55% based on NIAP. Fetal acidosis defined by an umbilical vein pH under 7.25 did not occur when the lowest systolic AP measured by CNAP was above 100 mm Hg.
Conclusions The CNAP device detected more hypotensive episodes after SPA and significantly lower AP compared with NIAP. AP monitoring based on CNAP may improve haemodynamic management in this patient population with potential benefit for the fetus."