Tomoda et al developed a simple score for predicting hypothyroidism after hemithyroidectomy. The authors are from Kuma Hospital in Kobe, Japan.
Patient selection: hemithyroidectomy
Outcome: subclinical hypothyroidism (based on elevated serum TSH)
Parameters:
(1) age in years
(2) preoperative serum TSH in µIU/mL (reference range 0.3 to 5.0)
Parameter
Finding
Points
age in years
< 55 years
0
>= 55 years
1
preoperative TSH
< 1 µIU/mL
1 to 2.49
>= 2.5 µIU/mL
2
total score =
= SUM(points for 2 parameters)
Interpretation:
• minimum score: 0
• maximum score: 3
Total Score
Percent Hypothyroidism
3%
20%
39%
3
70%
Following surgery serum TSH was measured at 1, 3, 6 and 12 months with annual testing thereafter if TSH is normal.
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Specialty: Endocrinology, Clinical Laboratory
