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Video laryngoscopes improve success rates and reduce dental compression compared with direct laryngoscopes in pediatric cardiac arrest simulationsWhen saving a child's life, does the camera on the tube make a difference?

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Key Takeaway
Consider video laryngoscopes over direct laryngoscopes in pediatric cardiac arrest simulations due to higher success rates and lower dental compression risk.

A systematic review and meta-analysis synthesized data from 13 simulation-based studies comprising 2,080 intubation attempts on pediatric manikins. The analysis compared video laryngoscopes against direct laryngoscopes during simulated pediatric cardiopulmonary resuscitation. No adverse events or discontinuations were reported in the included studies.

Video laryngoscopes were associated with a significantly higher first-attempt success rate, with direct laryngoscopes showing a 35% lower relative rate (RR: 0.65; 95% CI: 0.59-0.71). Overall success rates were also higher with video devices, where direct laryngoscopes demonstrated a 17% lower relative rate (RR: 0.83; 95% CI: 0.80-0.88).

Regarding visualization and safety, direct laryngoscopes were linked to a 39% lower likelihood of achieving a Cormack and Lehane grade 1 view (RR: 0.61; 95% CI: 0.49-0.76). Furthermore, intubation time was 8.13 seconds longer with direct laryngoscopes (95% CI: 4.82-11.44). Direct laryngoscopes carried a 6.05 times higher relative risk of dental compression compared with video laryngoscopes (RR: 6.05; 95% CI: 2.93-12.52).

Key limitations include the reliance on simulation-based studies using manikin models, which may not fully replicate the complexity of real-world cardiac arrest. Causation cannot be inferred from these observational simulation data. While the results suggest potential benefits for video laryngoscopes, clinical validation in actual patient care is necessary before definitive conclusions regarding survival benefits or real-world efficacy can be drawn.

Imagine a child's heart stops and a team rushes to save them. One critical moment is placing a breathing tube down the throat. A recent review compared two tools: the traditional direct laryngoscope and the newer video laryngoscope, which has a small camera. The study looked at 13 simulation-based tests where doctors practiced on manikins, totaling 2,080 attempts. It found that the video tools worked better for getting the tube in on the first try and overall. They also took about 8 seconds less time to use. For doctors, that extra time could mean the difference between life and death.

However, there is a catch. These tests happened in controlled training rooms, not real emergency rooms. The study measured how well the tools worked on plastic models, not real children. Because of this, we cannot say for sure if these tools will save more lives in actual cardiac arrest cases. The review also noted that the traditional tools caused dental compression six times more often than the camera tools, which is a safety signal worth noting.

The bottom line is that the camera-equipped tools performed better in these specific tests. But because the evidence comes only from simulations, doctors should not assume these results will translate perfectly to real patients. More studies on actual people are needed to confirm if this technology truly improves survival rates for children in cardiac arrest.

What this means for you:
Camera tools worked better in simulations, but real-world proof is still needed.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedApr 2026
View Original Abstract ↓
PURPOSE: High-quality cardiopulmonary resuscitation (CPR) is crucial for improving survival in cardiac arrest. Effective airway management can enhance outcomes but remains challenging due to anatomical and physiological factors in children. However, whether endotracheal intubation is superior to bag-valve-mask ventilation during CPR remains uncertain. Video laryngoscopes have emerged as an alternative to direct laryngoscopes, offering enhanced visualization; however, their efficacy for pediatric CPR remains unclear. This systematic review and meta-analysis aimed to compare the efficacy of video laryngoscopes and direct laryngoscopes during pediatric CPR in simulation-based studies. METHODS: A systematic search of PubMed, Embase, and The Cochrane Library was conducted up to February 2025. Only randomized controlled trials conducted in simulation settings comparing video and direct laryngoscopes in pediatric CPR were included. The primary outcomes were the first attempt success rate and the overall success rate. The secondary outcomes included intubation time, Cormack and Lehane grade as an indicator of glottic visualization, and dental compression. The risk of bias for the included studies was assessed using the Cochrane Risk of Bias tool. Two reviewers independently evaluated each domain, and disagreements were resolved by consensus. RESULTS: Thirteen simulation-based studies with 2080 intubation attempts in manikins were included. Direct laryngoscopes demonstrated a 35% lower relative first-attempt success rate (RR: 0.65, 95% CI: 0.59-0.71) and a 17% lower relative overall success rate (RR: 0.83, 95% CI: 0.80-0.88) compared with video laryngoscopes. Intubation time was 8.13 seconds longer with direct laryngoscopes (MD: 8.13 s, 95% CI: 4.82-11.44). Furthermore, direct laryngoscopes were associated with a 39% lower relative likelihood of Cormack and Lehane grade 1 view (RR: 0.61, 95% CI: 0.49-0.76), and 6.05 times higher relative risk of dental compression (RR: 6.05, 95% CI: 2.93-12.52) compared with video laryngoscopes. CONCLUSION: Video laryngoscopes significantly improve intubation success rates and reduce intubation time during simulation-based pediatric CPR. Future research should validate these findings in clinical settings and evaluate device-specific features to optimize outcomes.
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