Pediatric acute heart failure caused by endocardial fibroelastosis mimicking dilated cardiomyopathy: A case report

Table 1 Some blood routine and blood biochemistry tests of the child

Test item	Day 1	Day 3	Day 7
WBC	10.11 × 109/L (4.4-11.0)	9.32 × 109/L (4.4-11.0)	8.68 × 109/L (4.4-11.0)
RBC	4.84 × 1012/L (4.0-5.5)	4.77 × 1012/L (4.0-5.5)	4.82 × 1012/L (4.0-5.5)
HGB	84 g/L (112-149)	82 g/L (112-149)	83 g/L (112-149)
HCT	30.7% (34-43)	33.5% (34-43)	38.1% (34-43)
MCV	63.4 fL (76-88)	62.8 fL (76-88)	63.0 fL (76-88)
MCH	17.4 pg (24-30)	16.9 pg (24-30)	17.2 pg (24-30)
MCHC	274 g/L (310-355)	271 g/L (310-355)	273 g/L (310-355)
PLT	522 × 109/L (188-472)	487 × 109/L (188-472)	445 × 109/L (188-472)
LYMPH%	56.3% (23-69)	44.1% (23-69)	40.7% (23-69)
MONO%	7.2% (2-11)	8.1% (2-11)	8.6% (2-11)
NEUT%	34.0% (22-65)	36.7% (22-65)	33.15% (22-65)
LYMPH#	5.69 × 109/L (1.8-6.3)	4.42 × 109/L (1.8-6.3)	4.05 × 109/L (1.8-6.3)
MONO#	0.73 × 109/L (0.12-0.80)	0.80 × 109/L (0.12-0.80)	0.87 × 109/L (0.12-0.80)
NEUT#	3.44 × 109/L (1.2-7.0)	3.65 × 109/L (1.2-7.0)	3.34 × 109/L (1.2-7.0)
RDW-CV	20.4% (10.9-15.0)	19.4% (10.9-15.0)	17.6% (10.9-15.0)
FER	8.11 ng/mL (15.0-150.0)	8.10 ng/mL (15.0-150.0)	8.10 ng/mL (15.0-150.0)
VB12	362.40 pg/mL (197.00-771.00)	348.67 pg/mL (197.00-771.00)	384.22 pg/mL (197.00-771.00)
Folate	18.77 ng/mL (3.89-26.80)	18.03 ng/mL (3.89-26.80)	19.55 ng/mL (3.89-26.80)
CRP	0.3 mg/L (0.0-1.0)	0.2 mg/L (0.0-1.0)	0.05 mg/L (0.0-1.0)
IgG	10.43 g/L (7.00-16.00)	8.27 g/L (7.00-16.00)	9.01 g/L (7.00-16.00)
IgA	1.30 g/L (0.70-4.00)	1.55 g/L (0.70-4.00)	1.41 g/L (0.70-4.00)
IgM	1.73 g/L (0.40-2.30)	1.66 g/L (0.40-2.30)	1.80 g/L (0.40-2.30)
C3	1.56 g/L (0.90-1.80)	1.31 g/L (0.90-1.80)	1.45 g/L (0.90-1.80)
C4	0.32 g/L (0.10-0.40)	0.30 g/L (0.10-0.40)	0.29 g/L (0.10-0.40)
ASO	96 IU/mL (0-170)	83 IU/mL (0-170)	79 IU/mL (0-170)
ESR	16 mm/h (0-20)	14 mm/h (0-20)	12 mm/h (0-20)
PCT	0.12 ng/mL (< 0.05)	0.07 ng/mL (< 0.05)	0.03 ng/mL (< 0.05)
NT-proBNP	893.15 ng/L	517.40 ng/L	190.64 ng/L
Ca	2.65 mmol/L (2.10-2.80)	2.50 mmol/L (2.10-2.80)	2.69 mmol/L (2.10-2.80)
K	4.36 mmol/L (3.70-5.20)	4.62 mmol/L (3.70-5.20)	4.57 mmol/L (3.70-5.20)
Na	139.70 mmol/L (135.00-145.00)	142.74 mmol/L (135.00-145.00)	140.32 mmol/L (135.00-145.00)
Cl	102.80 mmol/L (96.00-108.00)	105.71 mmol/L (96.00-108.00)	103.40 mmol/L (96.00-108.00)
AMY	50.0 U/L (35.0-135.0)	62.0 U/L (35.0-135.0)	57.0 U/L (35.0-135.0)
CO2CP	15.7 mmol/L (22.0-29.0)	21.1 mmol/L (22.0-29.0)	25.8 mmol/L (22.0-29.0)
ALT	11.0 U/L (7.0-30.0)	10.3 U/L (7.0-30.0)	9.0 U/L (7.0-30.0)
AST	39.0 U/L (15.0-40.0)	36.7 U/L (15.0-40.0)	29.4 U/L (15.0-40.0)
AST/ALT	3.55	3.56	3.27
LDH	394.0 U/L (120.0-250.0)	376.0 U/L (120.0-250.0)	285.0 U/L (120.0-250.0)
CK	100.0 U/L (50.0-310.0)	84.0 U/L (50.0-310.0)	77.0 U/L (50.0-310.0)
CK-MB	23.5 U/L (0.0-25.0)	20.9 U/L (0.0-25.0)	18.4 U/L (0.0-25.0)
α-HBDH	331.0 U/L (72.0-182.0)	255.4 U/L (72.0-182.0)	191.1 U/L (72.0-182.0)
GLU	5.35 mmol/L (3.90-6.10)	5.62 mmol/L (3.90-6.10)	5.05 mmol/L (3.90-6.10)
BUN	3.2 mmol/L (2.7-7.0)	2.9 mmol/L (2.7-7.0)	2.7 mmol/L (2.7-7.0)
CREA	22.2 μmol/L (19.0-44.0)	21.4 μmol/L (19.0-44.0)	20.1 μmol/L (19.0-44.0)

α-HBDH: α-hydroxybutyrate dehydrogenase; ALT: Alanine aminotransferase; AMY: Amylase; ASO: Anti-streptolysin O; AST: Aspartate aminotransferase; BUN: Blood urea nitrogen; C3: Complement C3; C4: Complement C4; Ca: Calcium; CO₂CP: Carbon dioxide combining power; CK: Creatine kinase; CK-MB: Creatine kinase MB isoenzyme; Cl: Chlorine; CREA: Creatinine; CRP: C-reactive protein; ESR: Erythrocyte sedimentation rate; FER: Ferritin; GLU: Glucose; HCT: Hematocrit; HGB: Hemoglobin; IgA: Immunoglobulin A; IgG: Immunoglobulin G; IgM: Immunoglobulin M; K: Kalium; LDH: Lactate dehydrogenase; LYMPH%: Lymphocyte ratio; LYMPH#: Lymphocyte count; MCH: Mean corpuscular hemoglobin; MCHC: Mean corpuscular hemoglobin concentration; MCV: Mean corpuscular volume; MONO%: Monocyte ratio; Na: Natrium; NEUT%: Neutrophil ratio; NEUT#: Neutrophil count; PCT: Procalcitonin; NT-proBNP: N-terminal pro-brain natriuretic peptide; PLT: Platelet; MONO#: Monocyte count; RBC: Red blood cell; RDW-CV: Red cell distribution width-coefficient of variation; VB₁₂: Vitamin B₁₂; WBC: White blood cell.