Table 1.

Time course of the laboratory data. Serum folate and vitamin B12 concentrations are also within the normal range (479 pg/mL and 4.3 ng/mL, respectively).

	Post-myectomy	Pre-pacing	1 week later	3 weeks later
Hemoglobin, g/dL	7.9	8.6	12.2	13.3
Hematocrit, %	24.0	25.7	37.1	38.7
Red blood cells, ×104/μL	240	260	371	373
Total indirect bilirubin, mg/dL	1.6/1.0	1.3/0.9	0.4/0.1	0.4/0.1
Lactate dehydrogenase, IU/L	280	264	215	213
Haptoglobin, mg/dL	6	7	94	117
Serum iron concentration, μg/dL	39	34	36	59
Ferritin, ng/mL	42	38	39	39
Total iron binding capacity, μg/dL	382	367	313	320