Tonometry of gastric mucosal partial carbon dioxide tension (PCO 2) has been forwarded as
a clinically applicable tool to monitor regional perfusion adequacy during circulatory failure …

Objective: To evaluate a new method of air tonometry to assess gastro-intestinal
intramucosal pH (pHi) and to assess the utility of intramucosal carbon dioxide tension …

Abstract Increases in tissue partial pressure of carbon dioxide (PCO 2) can reflect an
abnormal oxygen supply to the cells, so that monitoring tissue PCO 2 may help identify …

Intramucosal-to-arterial carbon dioxide difference (the so-called P CO 2 [partial carbon
dioxide tension] gap) remains largely unaltered during decreased oxygen delivery, if the …

The use of gastric tonometry for the measurement of splanchnic perfusion as a surrogate of
tissue oxygen delivery is a well-established technique, but one that has not enjoyed …

It is obvious that to calculate pHi an important assumption is made. It is assumed that HCO3–
of the gastric mucosal tissue is in equilibrium with the systemic arterial HCO3–. However …

Purpose: This study compares the balloon air tonometry method of measuring gastric
mucosal CO2 to standard saline tonometry. Also, this study investigates the effect of …

The measurement of gastric intramucosal pH serves as a non‐invasive technique for early
detection of gastrointestinal ischaemia in critically ill patients. The method is based on the …

Gastrointestinal luminal PCO2 tonometry has been introduced in critically ill patients, to
derive the mucosal pH (pHi) as a measure of mucosal perfusion adequacy, from the …

The development of gastrointestinal tonometry was an important step in the monitoring of
tissue dysoxia. It rapidly became a useful tool in basic research. In addition, and for the first …