Xprotect smart client

A single investigator (PAB) reviewed all video recordings using the video management software from XProtect Smart Client (Milestone, Copenhagen, Denmark). Statistical calculations were performed in IBM SPSS Statistics V.24 (SPSS). Comparison between groups was done by Mann-Whitney U test for continuous variables and χ² test for categorical variables (Fisher’s exact test if expected counts were <5). A p value <0.05 was considered statistically significant, all reported p values are two sided. Results are presented as number (%), median (IQR) and mean (SD).

A single investigator (P.A.B.) reviewed all video recordings using video management software from XProtect Smart Client (Milestone, Copenhagen, Denmark). The respiratory effort of the newborn on arrival at the resuscitation bay was categorized as adequate, inadequate (e.g., grunting or severe retractions), or apnoeic [6 (link), 7 (link)]. Drying and stimulation were considered adequate if the newborn received tactile truncal stimulation (drying, chest and back rubs) prior to respiratory support as opposed to excessive stimulation for longer than 15 s or none at all [14 (link)]. We registered time and mode of initial HR assessment and time to initiation of and duration of PPV. The time to reliable PO signals was defined as the time from when the sensor was placed around the newborn's hand or wrist until the monitor displayed a continuous pulse wave and HR values for at least 3 s. The time to reliable ECG signals was defined as the time from when all three electrodes were placed until the monitor showed regular QRS complexes. These definitions of reliable PO and ECG signals are in accordance with previously published studies [15 (link), 16 (link), 17 (link)]. The time to reliable HR monitoring was compared between newborns with 5-min Apgar <7 and ≥7 [18 (link)]. Patient and birth characteristics were extracted from medical ­records.