Pediatric Rapid Sequence Intubation: Evidence‑Based Recommendations

1. Muscle‑Relaxant Selection and Dosing

• First‑line paralytic: Succinylcholine is recommended as the primary rapid‑onset muscle relaxant for pediatric RSI, with age‑adjusted dosing of 1.8 mg/kg (< 1 month), 2 mg/kg (1 month–1 year), 1.2 mg/kg (1–10 years), and 1 mg/kg (> 10 years). If succinylcholine is contraindicated, rocuronium 0.9–1.2 mg/kg is an appropriate alternative. [1][2]

• Intubation conditions: Succinylcholine provides intubation conditions that are at least equivalent to, and often superior to, those achieved with rocuronium. 2

• Contraindications for succinylcholine: Use rocuronium when succinylcholine is contraindicated because of neuromuscular disease risk, hyperkalemia risk, or susceptibility to malignant hyperthermia. [1][2]

• Reversal considerations: Availability of sugammadex for rocuronium reversal may be limited in some settings; this should influence drug choice. [1][2]

• Choice drivers: Selection between succinylcholine and rocuronium should consider the desired duration of paralysis and the anticipated difficulty of intubation. [1][2]

2. Physiologic Rationale for Modified Pediatric RSI

• Rapid desaturation: Children have higher metabolic oxygen consumption and lower functional residual capacity than adults, making the apneic interval between induction and tube placement especially hazardous. [1][2]

3. Endotracheal Tube (ETT) Selection

• Cuffed vs. uncuffed: Both cuffed and uncuffed ETTs are acceptable for pediatric patients. 3

• When to prefer cuffed tubes: Cuffed tubes are advantageous in situations of reduced lung compliance, increased airway resistance, or a large glottic air leak. 3

• Cuff pressure monitoring: Cuff pressure should be kept below 20–25 cm H₂O when cuffed tubes are used. 3

• Size availability: Clinicians should have tubes 0.5 mm smaller and larger than the estimated size readily available. 3

• Weight‑based sizing: Length‑based resuscitation tapes provide more accurate ETT size estimation than age‑based formulas for children up to 35 kg. 3

4. Videolaryngoscopy

• Indications: Videolaryngoscopy is the preferred first‑line device for patients with anticipated difficult airways or after a failed direct laryngoscopy attempt. [1][2]

• Benefit in difficult airways: In children with a history of difficult intubation or polymalformative syndromes, videolaryngoscopy improves glottic visualization and increases first‑attempt success rates. [1][2]

• Routine use: In patients without predictors of a difficult airway, videolaryngoscopy does not demonstrate a statistically significant advantage over direct laryngoscopy. [1][2]

5. Cricoid Pressure

• Evidence status: Current evidence is insufficient to support routine application of cricoid pressure during pediatric RSI. 3

• Practical guidance: Cricoid pressure should be discontinued if it hampers ventilation or makes intubation more difficult. 3

6. Safety Planning and Provider Expertise

• Backup airway plan: A secondary airway management strategy must be prepared and ready before attempting RSI. 3

• Provider qualifications: RSI should be performed only by clinicians who are trained and experienced in pediatric airway assessment and management. 3

• Avoiding gastric inflation: To prevent ventilation compromise, avoid excessive peak inspiratory pressures and use slow, controlled ventilation when bag‑mask ventilation is required. 3

• Weight‑based drug dosing: Dosing of succinylcholine should be calculated using the patient’s actual body weight rather than ideal body weight. 3

7. Training and Ongoing Competence

• Initial training: Successful pediatric intubation requires adequate training and supervised operating‑room experience. 3

• Maintenance of skill: Ongoing clinical exposure is necessary to retain proficiency in pediatric airway techniques. 3

• Anatomical knowledge: Providers must understand the anatomical differences of the pediatric airway to optimize safety and success. 3

Rapid Sequence Induction and Intubation in Anesthesia

Core Principles and Indications

• The European Society of Anaesthesiology and Intensive Care strongly recommends using fast-acting muscle relaxants for RSI, such as succinylcholine 1-2 mg/kg or rocuronium 0.9-1.2 mg/kg, in patients who cannot safely fast or have conditions that increase aspiration risk 4
• In emergency situations where fasting status is unknown, RSI is indicated, according to the Anaesthesia journal 5

Essential Components of RSI

Pharmacologic Agents

• The European Society of Anaesthesiology and Intensive Care strongly recommends using fast-acting muscle relaxants, such as succinylcholine 1-2 mg/kg or rocuronium 0.9-1.2 mg/kg, for RSI 4
• Propofol is an acceptable hypnotic agent for RSI, as recommended by the Anaesthesia journal 5

Modified RSI Techniques

Pediatric/Controlled RSI

• The French guidelines recommend a "controlled" or "modified" RSI approach in pediatric patients, which includes gentle bag-mask ventilation to prevent hypoxemia, with preoxygenation using FiO₂ 0.8, deep anesthesia with opioid and hypnotic, non-depolarizing muscle relaxant, and gentle bag-mask ventilation with peak inspiratory pressure <15 cmH₂O 6, 7
• This approach decreases hypoxemia, hemodynamic complications, and difficult intubation compared to classic RSI, with no observed aspiration events in retrospective studies 6, 7, 8, 9

Critical Safety Considerations

Cricoid Pressure Controversy

• The role of cricoid pressure has become controversial and is no longer universally recommended, with some guidelines no longer including cricoid pressure for pediatric aspiration-risk patients 4, 6
• If cricoid pressure is applied and direct laryngoscopy proves difficult, it should be released, as recommended by the World Journal of Emergency Surgery 4

Special Populations

COVID-19 Patients

• For COVID-positive or highly suspicious patients, strict barrier precautions should be followed during RSI, including limiting personnel in the operating room, avoiding mask ventilation during pre-oxygenation, stopping oxygen before removing the bag-valve mask, using video laryngoscopy by the most experienced clinician, and connecting ventilator only after inflating the endotracheal tube cuff, as recommended by the Anaesthesia journal 5