Table 2.

Patient and case characteristics. N (%) is provided for categorical variables and mean ± s.d. or median [IQR] is provided for continuous variables.

Patient or Case Characteristic (n=2665)
Patient Characteristic
Patient Age
< 1 year	138 (5)
1-9 years	966 (36)
≥ 10 years	1561 (59)
Patient Weight
< 4 kg	22 (1)
4-9 kg	251 (9)
10-19 kg	563 (21)
≥ 20 kg	1829 (69)
Patient Sex: Male	1447 (54)
Number of prior caths	6 [0, 14]
Time since heart transplant (years)	1.5 [0.3, 4.9]
Case Characteristic
Admission Status: Elective	2475 (93)
Case Type
EMB	1843 (69)
EMB plus coronary angiography	822 (31)
Hemodynamic Parameters
Cardiac index (L/min/m2)	3.7 ± 1.2
Mixed venous saturation (%)	71 ± 7
LVEDP or mean PCWp (mmHg)	11 ± 4
On inotropic support	70 (2.6)
On ECMO	11 (0.4)
Spontaneous respiration	1354 (51)
Corrected Case Length (minutes)	39 ± 29
Fluoroscopy Time (minutes)	10 ± 8
Access
Right internal jugular vein	1265 (47)
Left internal jugular vein	85 (3.2)
Right femoral vein	928 (35)
Left femoral vein	271 (10)
Right subclavian vein	113 (4.2)
Left subclavian vein	40 (1.5)
Other access site	11 (0.4)
Right femoral artery	741 (28)
Left femoral artery	143 (5)
Number of biopsy attempts (n=1122)	5 [4, 7]
Number of pieces obtained (n=1123)	5 [4, 6]

EMB, Endomyocardial biopsy; LVEDP, Left ventricular end-diastolic pressure; PCWp, Pulmonary capillary wedge pressure; ECMO, Extracorporeal membrane oxygenation;