Analysis of cranial type characteristics in term infants: A multi-center study
Background: Positional head deformity (PHD) is defined as a change in the shape of an infant's skull due to an external force. In certain cases, it can lead to cosmetic deformities or even neurological issues due to its impact on the developing nervous system. Therefore, we conducted this study to investigate the incidence and characteristics of PHD in term infants in China and preliminarily establish a localized diagnostic reference standard.
Methods: Overall, 4456 term infants from three medical institutions in Chongqing were and divided and analyzed according to their age. Cranial vault asymmetry (CVA) and cephalic index (CI) were calculated in all infants. The current international diagnostic criteria were used to understand PHD incidence and analyze the CVA and CI distribution.
Results: According to the current international standards, the total detection rate of PHD in Chongqing’s term infants was 81.5%, with brachycephaly alone being the most frequent (39.4%), followed by brachycephaly with plagiocephaly (34.8%) and plagiocephaly alone (6.2%). The detection rates of dolichocephaly were low: alone, 0.9% and combined with plagiocephaly, 0.2%. According to age, plagiocephaly (44.5%) and brachycephaly (82.0%) were the most frequent in the 2-3-month group. The 75th/90th/97th and 3rd/10th/25th/75th/90th/97th percentiles of CVA and CIs were 0.4/0.7/1.0 and 76.4/78.8/82.3/91.1/94.6/99.2%, respectively.
Conclusions: According to the current international standards, the PHD detection rate among term infants in Chongqing was high. Therefore, a new diagnostic standard for Chinese infants was proposed where CVA ≥0.4 cm indicates plagiocephaly, CI ≥91% indicates brachycephaly, and CI ≤82% indicates dolichocephaly.
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Posted 28 Sep, 2020
Received 04 Oct, 2020
On 02 Oct, 2020
On 30 Sep, 2020
Received 30 Sep, 2020
Invitations sent on 29 Sep, 2020
On 24 Sep, 2020
On 23 Sep, 2020
On 23 Sep, 2020
On 15 Sep, 2020
Received 28 Aug, 2020
On 21 Aug, 2020
Received 29 Jun, 2020
Received 29 Jun, 2020
On 08 Jun, 2020
On 03 Jun, 2020
Invitations sent on 31 May, 2020
On 22 May, 2020
On 21 May, 2020
On 21 May, 2020
On 20 May, 2020
Analysis of cranial type characteristics in term infants: A multi-center study
Posted 28 Sep, 2020
Received 04 Oct, 2020
On 02 Oct, 2020
On 30 Sep, 2020
Received 30 Sep, 2020
Invitations sent on 29 Sep, 2020
On 24 Sep, 2020
On 23 Sep, 2020
On 23 Sep, 2020
On 15 Sep, 2020
Received 28 Aug, 2020
On 21 Aug, 2020
Received 29 Jun, 2020
Received 29 Jun, 2020
On 08 Jun, 2020
On 03 Jun, 2020
Invitations sent on 31 May, 2020
On 22 May, 2020
On 21 May, 2020
On 21 May, 2020
On 20 May, 2020
Background: Positional head deformity (PHD) is defined as a change in the shape of an infant's skull due to an external force. In certain cases, it can lead to cosmetic deformities or even neurological issues due to its impact on the developing nervous system. Therefore, we conducted this study to investigate the incidence and characteristics of PHD in term infants in China and preliminarily establish a localized diagnostic reference standard.
Methods: Overall, 4456 term infants from three medical institutions in Chongqing were and divided and analyzed according to their age. Cranial vault asymmetry (CVA) and cephalic index (CI) were calculated in all infants. The current international diagnostic criteria were used to understand PHD incidence and analyze the CVA and CI distribution.
Results: According to the current international standards, the total detection rate of PHD in Chongqing’s term infants was 81.5%, with brachycephaly alone being the most frequent (39.4%), followed by brachycephaly with plagiocephaly (34.8%) and plagiocephaly alone (6.2%). The detection rates of dolichocephaly were low: alone, 0.9% and combined with plagiocephaly, 0.2%. According to age, plagiocephaly (44.5%) and brachycephaly (82.0%) were the most frequent in the 2-3-month group. The 75th/90th/97th and 3rd/10th/25th/75th/90th/97th percentiles of CVA and CIs were 0.4/0.7/1.0 and 76.4/78.8/82.3/91.1/94.6/99.2%, respectively.
Conclusions: According to the current international standards, the PHD detection rate among term infants in Chongqing was high. Therefore, a new diagnostic standard for Chinese infants was proposed where CVA ≥0.4 cm indicates plagiocephaly, CI ≥91% indicates brachycephaly, and CI ≤82% indicates dolichocephaly.
Figure 1
Figure 2
Figure 3