The reliability of pH-values in fetal blood samples - A study of the second stage.

摘要: In 119 cases fetal blood analysis (FBA) was done in the last 15 minutes before birth together with sampling from umbilical artery (UA) immediately after delivery first breath. Using measured pH-values we investigated relationship between these variables, particular degree of influence considerable caput succedaneum on peripheral blood. Our investigation performed during time just delivery, when disturbance circulation presenting part whuld have highest samples. We kept mind especially critiques FBA by WULF et al. [21] and ASSALI [2]. As other authors concluded, found a high correlation pH evaluated that determined The coefficient was: pHact r=0.82 pHqu40 r=0.78. corresponding pHvalues arterial is given Fig. 1 b. quadrants showed for actual as well p less than 0.01. derived form this, can be seen. mean were: (see article) 42 children had severe or moderate succedaneum. 2a 2b show central cases. Again good observed whole collective. r=0.78 r=0.79. Caput seems to only minimal obtained part. These results lead us conclude second stage provides almost indentical