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14
| 3 | 2004
Klinisk Biokemi i Norden
buttons describe less dangerous results in relation
to the target value (Fig 1).
The physician clicks on the patients name and
examines the record which includes a graphical
presentation of the latest INR results (Fig 2). The
system suggests two or three doses and calculates
the % alternation in weekly dose.(Fig 3).
The physician can accept the suggestion or adjust
it, accept or adjust the suggested date for the next
measurement of INR and print out a letter to the
patient. The letter can of cause also be sent as e-
mail (Fig 4).
Results
We validated the system September – October 2003.
There was no unsafe or unacceptable dose sugges-
tion from the system. We compared 324 system-
managed consecutive patients with 382 patients
managed by experienced physicians and found no
significant difference in the resolute INR values.
The system was then implemented in the daily
routine.
We compared 180 patients in May 2003 (paper-
based system) with 180 other patients in May 2004.
All patients had a target value of INR between 2.0
– 3.0.
(Fortsat fra side 13)
Figure 4.
