Bow-and-arrow sign on point-of-care ultrasound for diagnosis of pacemaker lead-induced heart perforation: A case report and literature review

Table 1 Laboratory values prior to and after the onset of heart perforation by lead

Variables	Results (prior to the onset)	Results (after the onset)	Normal range
White blood cells	10.04 × 109/L	25.85 × 109/L	3.5-9.5 × 109/L
Hemoglobin	113 g/L	103 g/L	115-150 g/L
Platelets	123 × 109/L	144 × 109/L	100-300 × 109/L
Alanine aminotransferase	12 IU/L	2840 IU/L	7-40 IU/L
Aspartate aminotransferase	17 IU/L	9650 IU/L	13-35 IU/L
Creatinine	0.67 mg/dL	1.14 mg/dL	0.34-1.02 mg/dL
Prothrombin time	10.8 s	27.2 s	9-14 s
Activated partial thromboplastin time	33.5 s	36.9 s	23-32 s
Myohemoglobin	Not tested	201 ng/mL	25-58 ng/mL
Hypersensitive troponin T	Not tested	46.65 ng/L	< 14 ng/L