Capnography guide highlights rising anesthesia monitoring standards: full analysis

Capnography is back in focus for small animal practice with a new peer-reviewed guide in Today’s Veterinary Nurse that translates a technical monitoring topic into day-to-day clinical use. Published June 1, 2026, the article positions capnography as a cornerstone of anesthesia safety and a core recommendation within resuscitation guidance, reflecting how ventilation monitoring is moving from “nice to have” toward routine expectation in many practices. (todaysveterinarynurse.com)

The piece arrives against a broader shift in veterinary anesthesia standards. AAHA’s 2020 anesthesia and monitoring guidelines for dogs and cats emphasized that many patient complications are first detected through anesthetic monitoring and specifically identified ETCO2 as one of the parameters anesthetists should know how to interpret. Since then, educational articles and specialty guidance have continued to reinforce capnography’s role in spotting hypoventilation and other complications earlier than observation alone. (aaha.org)

In the new article, Antonia Laoutaris reviews the mechanics and clinical use of capnography for intubated small animal patients. The guide explains the tradeoffs between mainstream and sidestream systems: mainstream monitoring gives immediate airway-level readings, but adds weight at the endotracheal tube and can overheat near warming devices; sidestream setups are lighter and often cheaper to replace, but introduce slight sampling delay and are more vulnerable to moisture buildup or cracked lines. It also underscores a point that matters especially in cats, toy breeds, and compromised patients: adapter selection and minimizing dead space can materially affect both ventilation and reading accuracy. (todaysveterinarynurse.com)

The article also leans heavily into waveform interpretation, not just numeric ETCO2 values. It outlines the classic capnogram phases and advises teams to correlate waveform shape with the patient’s clinical status and other monitoring data. Troubleshooting steps start with urgent patient issues, such as apnea, cardiopulmonary arrest, incorrect intubation, or a closed pop-off valve, before moving to equipment checks for leaks, mucus plugs, disconnections, kinks, condensation, and damaged sampling lines. That framework mirrors the way many anesthesia specialists teach capnography: as a monitor of ventilation, perfusion, metabolism, and circuit integrity all at once. (todaysveterinarynurse.com)

Outside commentary and guidance support that framing. Today’s Veterinary Practice previously described capnography as a tool that provides information about both ventilation and cardiovascular status, and said adding it to a general anesthesia monitoring protocol can help identify complications such as hypoventilation early enough to guide intervention. The 2025 ACVAA small animal monitoring guidelines go further by describing capnometry as a fallback if full capnography is unavailable, while highlighting the value of waveform analysis for detecting cuff leaks, spontaneous breathing during ventilator use, changes in pulmonary compliance, and airway secretions. (todaysveterinarypractice.com)

Why it matters: For veterinary professionals, this is less about a new discovery than about operationalizing a standard of care. Capnography can help teams detect respiratory depression from anesthetic drugs, assess whether a patient is ventilating adequately, and identify machine or airway problems before they become crises. The emphasis on setup, zeroing, moisture management, and adapter sizing is particularly relevant in general practice, where monitor availability may be improving, but consistent staff training can lag. For practices serving increasingly informed pet parents, stronger monitoring protocols also support clearer conversations about anesthesia safety and risk reduction. (todaysveterinarypractice.com)

The CPR connection is also notable. The Today’s Veterinary Nurse article cites the 2024 RECOVER guidelines, and the RECOVER initiative said those updated recommendations were released in June 2024 as a major revision to veterinary CPR guidance. That linkage matters because capnography’s role extends beyond routine anesthesia into peri-arrest and resuscitation settings, reinforcing its value as a cross-functional monitor rather than a surgery-only device. (todaysveterinarynurse.com)

What to watch: The next development to monitor is whether broader practice adoption follows the guidance trend, especially as ACVAA’s 2025 recommendations circulate and more teams reassess capital purchases, protocol updates, and technician training around waveform interpretation, alarm response, and small-patient setup. (ebvminpractice.org)