[Comparison of temperatures from 7 points in the patients under intraperitoneal hyperthermic perfusion]

We measured the temperatures from 7 points in the patients under intraperitoneal hyperthermic perfusion (IPHP), associated with induced hypothermia. The temperatures from the 7 points were as follows, pulmonary artery blood temperature (PAT), bladder temperature (BT), sole deep body temperature (ST), forehead deep body temperature (FT), external aural cannal temperature (EAT), esophageal temperature (ET), and rectal temperature (RT). We studied the relationship between PAT and the other 6 temperatures. During IPHP, DT rose up to nearly 40 degrees C, and we considered it very useful to judge the temperatures of the other intra-abdominal organs, which were in contact with the perfusate of IPHP. Judging from the difference of PAT and ST, ST was found useful to estimate the degree of insufficiency of the peripheral circulation. We calculated the correlation coefficients with PAT among the four points, and the order of the correlation coefficients was EAT > ET > FT > RT. EAT showed the highest correlation coefficient with PAT (r = 0.981), and we considered EAT can be a substitute for PAT during IPHP. ET also showed a high correlation with PAT (r = 0.959), but it showed an unusual rise in a case of hydrothorax with hot perfusate for IPHP. Therefore, ET cannot be used solely as a substitute for PAT, but ET can be used as a marker to find a complication of IPHP, hydrothorax.