Jarosławski Jarosław, Burzyński Jacek, Kryczka Krzysztof, Michalak Arkadiusz, Warda Wiktor, Zieliński Krzysztof, Fendler Wojciech, Chobot Agata
Student Association of Pediatrics and Critical Care, Department of Pediatrics, Institute of Medical Sciences, University of Opole, Al. W.Witosa 26, 45-052 Opole, Poland.
Department of Biostatistics and Translational Medicine, Medical University of Lodz, Ul. Mazowiecka 15, 92-215Lodz, Poland.
Resusc Plus. 2024 Jul 8;19:100708. doi: 10.1016/j.resplu.2024.100708. eCollection 2024 Sep.
To assess the depth of chest compressions (CC) provided by schoolchildren and their relation with providers's anthropometric characteristics.
We organized 1-hour hands-on training sessions for 11-14y.o. in volunteering schools. After training, willing subjects performed 2 min of recorded continuous CCs by means of Laerdal Resusci Anne® with CPRMeter2®, with visual feedback. Compression pace was given by metronome; instructors supervised the correct body position. Collected data included age, sex, as well as measured body weight and height.
We analyzed records from = 702 children (mean age: 12.76 ± 1.02 years, 379 (51.63%) boys) out of 761 participating in the study. Their mean median compression depth (MCD) was 46.70 ± 7.74 mm, which was below minimal effective CC depth advised by current guidelines (50 mm). This corresponded to low mean fraction of CCs ≥ 50 mm (CCF ≥ 50 mm, 42.86 ± 33.67%), and only 42.88% of children achieving at least 50% of compressions ≥ 50 mm. Boys had significantly higher mean MCD and CCF ≥ 50 mm than girls (MCD: 49.34 ± 7.05 mm vs 45.97 ± 8.07 mm, < 0.0001; CCF ≥ 50 mm: 50.23 ± 32.90% vs 40.40 ± 34.97%, < 0.0001). Age differentiated children who achieved at least 50% of compressions ≥50 mm from those who did not with AUC of 0.69 (for cut-off of 12.1 years: 85% sensitivity, 41% specificity), whereas weight offered an improved prediction (AUC 0.74; for cut-off 44.8 kg: 77.4% sensitivity, 61.1% specificity).
Sex, age and anthropometric factors are significant CC quality factors. Children with higher body weight are more likely to deliver CCF50%≥50 mm. Among the studied population, children ≥12 years old provided more effective chest compressions.
评估学童进行胸外按压（CC）的深度及其与施救者人体测量学特征的关系。
我们在志愿学校为11至14岁的学生组织了1小时的实践培训课程。培训后，愿意参与的受试者使用带有CPRMeter2®的Laerdal复苏安妮模型进行2分钟的连续CC记录，并提供视觉反馈。按压节奏由节拍器给出；教员监督正确的身体姿势。收集的数据包括年龄、性别以及测量的体重和身高。
我们分析了761名参与研究的儿童中的702名儿童的记录（平均年龄：12.76±1.02岁，379名（51.63%）为男孩）。他们的平均中位按压深度（MCD）为46.70±7.74毫米，低于当前指南建议的最小有效CC深度（50毫米）。这对应着较低的CC≥50毫米的平均比例（CCF≥50毫米，42.86±33.67%），只有42.88%的儿童至少50%的按压≥50毫米。男孩的平均MCD和CCF≥50毫米显著高于女孩（MCD：49.34±7.05毫米对45.97±8.07毫米，P<0.0001；CCF≥50毫米：50.23±32.90%对40.40±34.97%，P<
