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

Koether, Karoline; Ulian, Carla Maria Vela; Lourenço, Maria Lucia Gomes; Gonçalves, Renato Souza; Sudano, Mateus José; Cruz, Raíssa Karolliny Salgueiro; da Silva Branchini, Naiana; Alfonso, Angélica; Chiacchio, Simone Biagio

doi:10.1186/s12899-016-0020-5

BMC Physiology

Table 1 The duration 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 (s)	PR (s)	QRS (s)	QTc (s)	T (s)
I	Birth	0.043 ± 0.008	0.075 ± 0.015	0.036 ± 0.007^a*	0.233 ± 0.023^a	0.068 ± 0.014
	7	0.039 ± 0.008	0.070 ± 0.017	0.036 ± 0.007^a	0.226 ± 0.033^a	0.068 ± 0.019
	14	0.037 ± 0.007	0.067 ± 0.012	0.035 ± 0.009^a	0.236 ± 0.020^ab	0.060 ± 0.014
	21	0.037 ± 0.006	0.070 ± 0.0086	0.040 ± 0.008^a	0.249 ± 0.020^bc	0.066 ± 0.011
	28	0.039 ± 0.006	0.072 ± 0.014	0.035 ± 0.006^a	0.249 ± 0.019^c	0.068 ± 0.007
	35	0.039 ± 0.007	0.077 ± 0.017	0.042 ± 0.009^b	0.255 ± 0.027^d	0.069 ± 0.014
II	Birth	0.040 ± 0.008	0.070 ± 0.016	0.039 ± 0.006	0.234 ± 0.022^ab	0.076 ± 0.012
	7	0.039 ± 0.007	0.074 ± 0.022	0.040 ± 0.011	0.226 ± 0.020 ^b	0.068 ± 0.015
	14	0.039 ± 0.008	0.066 ± 0.008	0.039 ± 0.009	0.230 ± 0.022^b	0.060 ± 0.015
	21	0.040 ± 0.007	0.073 ± 0.009	0.052 ± 0.049	0.248 ± 0.017^ac	0 066 ± 0.010
	28	0.041 ± 0.006	0.074 ± 0.009	0.042 ± 0.008	0.255 ± 0.019^c	0.070 ± 0.010
	35	0.040 ± 0.005	0.075 ± 0.011	0.042 ± 0.008	0.263 ± 0.027^c	0.067 ± 0.011
III	Birth	0.040 ± 0.006	0.069 ± 0.014^a	0.036 ± 0.008	0.231 ± 0.022^ab	0.068 ± 0.014^ac
	7	0.037 ± 0.008	0.067 ± 0.015^a	0.038 ± 0.007	0.217 ± 0.025^b	0.059 ± 0.014^b
	14	0.038 ± 0.008	0.066 ± 0.011^a	0.037 ± 0.009	0.233 ± 0.017^bc	0.060 ± 0.011b^c
	21	0.041 ± 0.007	0.073 ± 0.010^ab	0.037 ± 0.012	0.246 ± 0.01^bd	0.061 ± 0.011^bc
	28	0.040 ± 0.006	0.070 ± 0.010^a	0.042 ± 0.013	0.252 ± 0.015^d	0.066 ± 0.012^abc
	35	0.042 ± 0.006	0.079 ± 0.014^b	0.041 ± 0.008	0.260 ± 0.030^d	0.067 ± 0.012^c
aVR	Birth	0.039 ± 0.007	0.066 ± 0.012^a	0.035 ± 0.007	0.236 ± 0.023^ab	0.074 ± 0.011^a
	7	0.035 ± 0.005	0.067 ± 0.010^a	0.035 ± 0.008	0.222 ± 0.026^b	0.065 ± 0.017^b
	14	0.037 ± 0.009	0.066 ± 0.009^a	0.035 ± 0.007	0.230 ± 0.023^ab	0.058 ± 0.012^c
	21	0.035 ± 0.005	0.070 ± 0.007^ab	0.037 ± 0.007	0.245 ± 0.020^ac	0.067 ± 0.013^b
	28	0.040 ± 0.005	0.075 ± 0.015^b	0.035 ± 0.010	0.252 ± 0.017^c	0.069 ± 0.008^b
	35	0.037 ± 0.005	0.075 ± 0.011^b	0.035 ± 0.007	0.261 ± 0.023^c	0.072 ± 0.010^b
aVL	Birth	0.040 ± 0.009^ac	0.069 ± 0.017^ab	0.047 ± 0.063	0.234 ± 0.027^ab	0.059 ± 0.010^ab
	7	0.035 ± 0.007^b	0.067 ± 0.013^a	0.039 ± 0.009	0.219 ± 0.017^b	0.060 ± 0.011^abc
	14	0.035 ± 0.007^bc	0.065 ± 0.0085^a	0.038 ± 0.006	0.235 ± 0.022^bc	0.056 ± 0.012^a
	21	0.039 ± 0.007^c	0.077 ± 0.017^bc	0.040 ± 0.01	0.243 ± 0.015^ac	0.065 ± 0.013^b
	28	0.040 ± 0.008^cd	0.075 ± 0.013^bc	0.037 ± 0.007	0.251 ± 0.018^cd	0.062 ± 0.011^abc
	35	0.041 ± 0.009^d	0.080 ± 0.016^c	0.041 ± 0.009	0.261 ± 0.025^d	0.067 ± 0.011^c
aVF	Birth	0.041 ± 0.005^ac	0.070 ± 0.016^abcd	0.039 ± 0.007^a	0.235 ± 0.023^ab	0.072 ± 0.012^ac
	7	0.037 ± 0.006^b	0.068 ± 0.015^abc	0.036 ± 0.006^a	0.219 ± 0.019^b	0.062 ± 0.016^bc
	14	0.037 ± 0.006^b	0.066 ± 0.008^b	0.040 ± 0.010^ab	0.234 ± 0.020^ab	0.060 ± 0.013^b
	21	0.042 ± 0.005^c	0.074 ± 0.010^cd	0.040 ± 0.008^ab	0.245 ± 0.018^ac	0.065 ± 0.007^bc
	28	0.043 ± 0.005^ac	0.075 ± 0.007^d	0.044 ± 0.008^b	0.251 ± 0.018 ^ad	0.063 ± 0.010^bc
	35	0.042 ± 0.006^ac	0.075 ± 0.013^d	0.040 ± 0.008^ab	0.266 ± 0.027 ^d	0.068 ± 0.011^c
BA	Birth	0.055 ± 0.033	0.075 ± 0.011	0.042 ± 0.006	0.233 ± 0.021^ab	0.175 ± 0.0267^ab
	7	0.045 ± 0.009	0.078 ± 0.010	0.042 ± 0.007	0.222 ± 0.021^a	0.162 ± 0.0259^ab
	14	0.047 ± 0.008	0.075 ± 0.009	0.042 ± 0.009	0.225 ± 0.016^a	0.167 ± 0.0189^a
	21	0.046 ± 0.007	0.080 ± 0.008	0.042 ± 0.007	0.239 ± 0.015^ac	0.184 ± 0.0204^bc
	28	0.046 ± 0.008	0.082 ± 0.012	0.043 ± 0.005	0.247 ± 0.017^cd	0.194 ± 0.0194^c
	35	0.046 ± 0.005	0.082 ± 0.011	0.042 ± 0.006	0.258 ± 0.028^d	0.210 ± 0.0343^d

(*) 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
S: seconds, QTc: corrected QT interval

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