Hyperthyroid heart disease in pregnancy: Retrospective analysis of a case series and review of the literature

Table 3 Thyroid function tests in patients with prolonged pregnancy after control of hyperthyroid heart disease

	Initial	1 wk	2 wk		Reference range
Patient 3			Before delivery
TSH (mIU/L)	< 0.003	0.003	0.006		0.55-4.78
Total T3 (nmol/L)	7.67	2.83	2.54		0.92-3.7
Total T4 (nmol/L)	> 387	> 387	295.1		58.1-173
Free T3 (pmol/L)	16.7	6.31	4.53		3.5-6.5
Free T4 (pmol/L)	61.91	42.75	35.43		11.5-22.7
TGAb (IU/mL)	> 500	> 500	> 500		< 60
TPOAb (IU/mL)	> 1300	> 1300	> 1300		< 60
	Initial	1 wk	2 wk	3 wk
Patient 4				Before delivery
TSH (mIU/L)	0.008	0.008	0.01	0.006	0.55-4.78
Total T3 (nmol/L)	4.01	1.95	1.60	1.72	0.92-3.7
Total T4 (nmol/L)	194	122.80	76.7	69.4	58.1-173
Free T3 (pmol/L)	9.15	4.97	4.03	3.57	3.5-6.5
Free T4 (pmol/L)	23.79	13.79	8.58	7.75	11.5-22.7
TGAb (IU/mL)	> 500	> 500	> 500	> 500	< 60
TPOAb (IU/mL)	> 1300	> 1300	> 1300	> 1300	< 60

T3: Triiodothyronine; T4: Thyroxine; TGAb: Thyroglobulin antibody; TPOAb: Thyroid peroxidase antibodies; TSH: Thyroid-stimulant hormone.