Peer-reviewed veterinary case report
Noninvasive breathing support for low oxygen after dog surgery
By Piemontese, Claudia et al.·Published in Veterinary anaesthesia and analgesia·2026·University of Bari, Italy·View original on PubMed →
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Original publication title: Effectiveness of noninvasive respiratory strategies for the management of postoperative hypoxaemia in dogs: a prospective, randomized clinical trial.
- Species:
- dog
Plain-English summary
A group of 600 dogs that had surgery were monitored for breathing problems after waking up from anesthesia. Out of these, 168 dogs showed low oxygen levels, and 76 were treated with one of three noninvasive methods: a face mask, a CPAP helmet, or high-flow nasal cannula. All three methods successfully increased their oxygen levels, but the CPAP helmet worked the fastest, bringing oxygen levels back to normal in about 17 minutes on average. All dogs tolerated the treatments well, showing no significant discomfort.
People also search for: dog breathing problems after surgery · CPAP for dogs · how to help dog with low oxygen levels
Abstract
OBJECTIVE: To evaluate the effectiveness, the time to restore normoxaemia (TRN), and the tolerability of face mask (FM), continuous-positive-airway-pressure helmet (CPAP), or high-flow nasal cannulae (HFNC) as noninvasive respiratory support strategies for treating transient postoperative hypoxaemia in dogs. STUDY DESIGN: Prospective, randomized, clinical trial. ANIMALS: A total of 600 client owned dogs anaesthetized for various procedures. METHODS: At the end of general anaesthesia, the haemoglobin oxygen saturation (SpO) on room air (SpAT) was used for assessment of oxygenation 10 minutes after extubation (T-POST). Hypoxaemic dogs (SpO< 95%) were randomly assigned to: FM-group [flow rate = 10 L minute; fraction of inspired oxygen (FIO) = 0.3-0.4], CPAP-group (flow rate = 10 L minute; FIO= 0.3-0.4; CPAP = 5 cmHO), and HFNC-group (flow rate = 2-2.5 L kgminuteat 37 °C; FIO= 0.3-0.4). Treatments lasted 1 hour, divided into 15-minute intervals (T15, T30, T45, T60) with 10 minutes of treatment and 5 minutes of SpAT. The TRN during SpAT was recorded. Interface tolerance was assessed using a dedicated scale. SpOand TRN were compared with two-way ANOVA, Kruskal-Wallis was used to test for differences in tolerance score between groups. p < 0.05. RESULTS: At T-POST, 168 dogs (28%) were hypoxaemic, and 76 of them completed the study (CPAP-group n = 31, FM-group n = 24, HFNC-group n = 21). All treatments restored normoxaemia. TRN was faster in the CPAP-group compared with HFNC-group and FM-group (mean ± standard deviation: 16.9 ± 15.7, 27.8 ± 20.8, and 40.4 ± 12.8 minutes, respectively) (p < 0.05). Tolerance was good for all devices, without differences between groups. CONCLUSIONS AND CLINICAL RELEVANCE: Postoperative hypoxaemia in dogs can be effectively treated with FM, HFNC, or CPAP, the latter restoring normoxaemia more rapidly.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/41735090/