Show notes
Your airway cart might look fully stocked, but one quiet change can reshape an entire intubation: a different endotracheal tube brand, a new material formulation, a redesigned cuff, or changes in diameter measurements. We take a close, practical look at endotracheal tube materials and design, and why supply chain instability and product discontinuations can turn a “routine” device into a patient safety risk, particularly for neonates, infants, and other pediatric patients where millimeters matter.We break down what actually varies between endotracheal tubes that share the same labeled size: PVC construction and the move away from DEHP, changes in flexibility, and how internal diameter, wall thickness, and manufacturing variability can increase resistance and impair ventilation. We also dig into cuffed endotracheal tubes and why there is no universal cuff standard. Cuff shape, cuff material, and contact surface area can change leak behavior, micro-aspiration risk, and the seal you rely on. Then we zoom in on failure points clinicians can miss, including pilot balloon and pilot line defects, the ability to pass a suction catheter in tiny cuffed tubes, distal tip designs that can deform, and when the presence or absence of a Murphy eye can matter in an emergency.To close, we read and reflect on a published statement responding to medication errors that harmed patients, reinforcing an essential distinction: a wrong drug or wrong route error is not the same thing as spinal anesthesia being unsafe. We highlight system safeguards that prevent neuraxial medication errors, including standardized labeling, separation of high-alert meds, and technology-assisted verification.Subscribe for more anesthesia patient safety deep dives, share this with a colleague who manages airways, and leave a review so more clinicians can find the show. What ET tube check has saved you from trouble?For show notes & transcript, visit our episode page at apsf.org: https://www.apsf.org/podcast/324-endotracheal-tubes-are-not-all-the-same/© 2026, The Anesthesia Patient Safety Foundation