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Table 2 Normal parameters of mechanical prosthesis within follow-up points

From: Assessment of normal hemodynamic profile of mechanical pulmonary prosthesis by doppler echocardiography: a prospective cross-sectional study

Parameters

First Follow-up (1 week)

Second Follow-up (4 week)

P-value

 

N = 108

N = 69

 

Peak Pressure Gradient

18.51 (17.14–19.88)

19.07 (16.49–22.01)

0.717

Mean Pressure Gradient

10.88 (9.85–11.97)

11.52 (9.89–13.41)

0. 526

Peak Velocity

1.97 (1.89–2.05)

2.02 (1.89–2.14)

0.629

Pulmonary velocity acceleration time

87.35 (84.49–89.97)

95.97 (89.82–102.37)

0.038

Doppler velocity index

0.67 (0.57–0.64)

0.56 (0.52–0.61)

0.229

Effective Orifice Area

2.98 (2.80–3.16)

2.79 (2.57–2.98)

0.397

Effective Orifice Area /Body surface area

1.81 (1.68–1.91)

1.72 (1.56–1.86)

0.559

  1. Data represented as mean and 95%confidence interval