TISS 28 or SOFA: Good Predicting Factors for Admission in a Surgical Intensive Care Unit Longer than 24 Hours
Manee Raksakietisak MD, FRCA*, Patiparn Toomtong MD*, Puttipannee Vorakitpokatorn MD*, Alisa Sengleulur MD*, Montian Sunjohndee MD*
Affiliation : * Department of Anesthesiology, Faculty of Medicine, Siriraj Hospital, Mahidol University
Objectives : To investigate the application of the Therapeutic Intervention Scoring System (TISS-28) and
Sequential Organ Failure Assessment (SOFA) score to the surgical intensive care patients, and to find associ-
ated factors affecting length of stay (LOS).
Materials and Methods : Prospective data; from 1st July 2004 to 31st December 2004 at Siriraj Hospital. TISS-28
and SOFA and other data were recorded within the first 24 hours of ICU admission.
Results : Average TISS-28 and SOFA values for patients who required >24 hr ICU stay were significantly
different from those who required < 24 hr ICU stay (29.7 + 7.9 and 3.1 + 2.8 points versus 19.4 + 5.9 and 1.1
+ 1.9 points, respectively p < 0.001). The other independent predictors of LOS > 24 hrs were ventilator
support; vasoactive agents administration, central venous line insertion, emergency operation, renal
dysfunction, and post-operative fever.
Conclusion : The severity scores (TISS 28 and SOFA) can sufficiently demonstrate the workload and also the
good predictors of ICU length of stay.
Keywords : Intensive care unit, Score systems, Therapeutic Intervention Scoring System, Severity of illness index
