A SURVEY OF TISSUE OXYGENATION DIFFERENCES IN INTENSIVE CARE PATIENTS WITH BLOOD TRANSFUSION

greater than 75% patient that hospitalized in intensive care units has anemia.
Blood transfusion in icu is not recently and about 40-70% patients in intensive cares receive
transfusion .blood transfusion is not safety and many of patients that received transfusion have some
serious side effects. Therefore to decrease such unwanted events there are some limits in blood
transfusion. Because there is no decreased in o2 extraction until hemoglobin above 9 gr/dl. Therefore
it seem the o2 extraction is the best categorized to blood transfusion need evaluation .in this study we
want to determine the effect of blood transfusion on tissue o2 extraction in intensive care patients.
Materials & Methods: 30 non cardiac and active bleeding intensive care patients that has ordered
blood transfusion by physician were selected . before and I hour after transfusion the veinuos and
arterial samples obtained to determine Sao2, Svo2 and Hg. And then datas were analysed.
Result: the study showed that hemoglobin level and arterial o2 content (Cao2) has increased in all
patients after transfusion. In 66/66% the o2 extraction decreased after transfusion and in 26/66%
patient it elevated. There was no significant correlation between hemoglobin level and o2 extraction
after transfusion.
Conclusion: although there was significant correlation between Hg and o2 extraction before blood
transfusion it was losedafter transfusion that similar studies are needed. It seems that the o2 extraction
was decreased after transfusion without related to Hg levels. In order to evalution intensive patients
need to blood transfusion, Hg and o2 extraction levels must be insighted together by nurses and
physicians