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Table 2 Amplitude of ECG parameters in neonatal lambs

From: The normal electrocardiograms in the conscious newborn lambs in neonatal period and its progression

Lead

Age (days)

P (mV)

R (mV)

S (mV)

T (mV)

I

Birth

0.097 ± 0.036

0.140 ± 0.168

0.085 ± 0.102

0.246 ± 0.159a*

 

     7

0.105 ± 0.038

0.123 ± 0.120

0.115 ± 0.164

−0.046 ± 0.213b

 

     14

0.103 ± 0.023

0.081 ± 0.099

0.114 ± 0.104

0.024 ± 0.128c

 

     21

0.104 ± 0.027

0.105 ± 0.087

0.085 ± 0.127

0.057 ± 0.140c

 

     28

0.111 ± 0.035

0.103 ± 0.110

0.113 ± 0.108

0.178 ± 0.115d

 

     35

0.109 ± 0.028

0.076 ± 0.091

0.147 ± 0.134

0.166 ± 0.124d

II

Birth

0.133 ± 0.054

0.225 ± 0.159a

0.073 ± 0.097

0.462 ± 0.160a

 

     7

0.137 ± 0.044

0.128 ± 0.120b

0.107 ± 0.109

0.221 ± 0.119b

 

     14

0.130 ± 0.035

0.138 ± 0.105b

0.091 ± 0.103

0.159 ± 0.086bc

 

     21

0.132 ± 0.033

0.114 ± 0.096b

0.093 ± 0.109

0.152 ± 0.138c

 

     28

0.113 ± 0.034

0.135 ± 0.098b

0.100 ± 0.125

0.256 ± 0.152d

 

     35

0.125 ± 0.030

0.115 ± 0.094b

0.121 ± 0.148

0.295 ± 0.144d

III

Birth

0.109 ± 0.036a

0.175 ± 0.119

0.066 ± 0.100

0.244 ± 0.168a

 

     7

0.107 ± 0.030a

0.179 ± 0.121

0.078 ± 0.113

−0.020 ± 0.175b

 

     14

0.106 ± 0.020a

0.166 ± 0.107

0.056 ± 0.095

0.046 ± 0.175bd

 

     21

0.093 ± 0.017a

0.149 ± 0.113

0.075 ± 0.120

0.136 ± 0.126ce

 

     28

0.078 ± 0.053b

0.145 ± 0.112

0.070 ± 0.097

0.116 ± 0.139de

 

     35

0.096 ± 0.024a

0.140 ± 0.131

0.100 ± 0.159

0.159 ± 0.139e

aVR

Birth

−0.122 ± 0.054

0.110 ± 0.0798

0.135 ± 0.175a

−0.311 ± 0.205a

 

     7

−0.101 ± 0.056

0.133 ± 0.120

0.068 ± 0.105b

0.054 ± 0.211b

 

     14

−0.115 ± 0.032

0.120 ± 0.0839

0.040 ± 0.080b

0.015 ± 0.154bc

 

     21

−0.109 ± 0.028

0.0995 ± 0.103

0.067 ± 0.078b

−0.069 ± 0.152c

 

     28

−0.111 ± 0.030

0.120 ± 0.113

0.074 ± 0.109b

−0.203 ± 0.157d

 

     35

−0.114 ± 0.026

0.141 ± 0.109

0.040 ± 0.066b

−0.183 ± 0.170d

aVL

Birth

−0.047 ± 0.067a

0.110 ± 0.120

0.102 ± 0.115

0.057 ± 0.146

 

     7

−0.025 ± 0.088b

0.109 ± 0.096

0.114 ± 0.151

−0.013 ± 0.147

 

     14

−0.016 ± 0.085b

0.058 ± 0.091

0.126 ± 0.101

0.010 ± 0.127

 

     21

−0.070 ± 0.054c

0.080 ± 0.099

0.092 ± 0.122

0.028 ± 0.148

 

     28

−0.089 ± 0.019c

0.074 ± 0.106

0.102 ± 0.108

0.071 ± 0.097

 

     35

−0.076 ± 0.048c

0.068 ± 0.105

0.135 ± 0.121

0.072 ± 0.150

aVF

Birth

0.118 ± 0.037

0.189 ± 0.118a

0.063 ± 0.105

0.315 ± 0.200a

 

     7

0.112 ± 0.029

0.149 ± 0.092b

0.069 ± 0.094

−0.042 ± 0.224b

 

     14

0.109 ± 0.023

0.125 ± 0.093b

0.069 ± 0.085

0.048 ± 0.153c

 

     21

0.106 ± 0.024

0.128 ± 0.098b

0.072 ± 0.108

0.153 ± 0.102d

 

     28

0.099 ± 0.025

0.132 ± 0.107b

0.073 ± 0.101

0.182 ± 0.143d

 

     35

0.105 ± 0.0215

0.112 ± 0.106b

0.094 ± 0.139

0.187 ± 0.132d

BA

Birth

0.232 ± 0.066a

0.034 ± 0.046

0.586 ± 0.229

0.452 ± 0.292a

 

     7

0.217 ± 0.055a

0.036 ± 0.047

0.443 ± 0.156

0.284 ± 0.146b

 

     14

0.223 ± 0.045ab

0.014 ± 0.033

0.462 ± 0.140

0.267 ± 0.131b

 

     21

0.200 ± 0.043bc

0.024 ± 0.056

0.405 ± 0.092

0.315 ± 0.157a

 

     28

0.179 ± 0.030c

0.029 ± 0.044

0.401 ± 0.131

0.328 ± 0.160a

 

     35

0.175 ± 0.038c

0.025 ± 0.050

0.448 ± 0.173

0.332 ± 0.152a

  1. (*) Superscript letters in the same column are significantly different (P < 0.05) differences between time points (days of age). Values are expressed as mean ± SD. mV: milivolt