Dog survives severe PEG and charcoal aspiration after ICU care

A newly reported emergency and critical care case adds an important data point for veterinarians managing severe iatrogenic aspiration events: a dog survived aspiration pneumonitis caused by accidental pulmonary administration of polyethylene glycol electrolyte solution and activated charcoal after treatment with bronchoalveolar lavage and mechanical ventilation. The report, published in the Journal of Veterinary Emergency and Critical Care, is described by the authors as the first successful canine case involving this specific combination of aspirated material and this level of respiratory support. (onlinelibrary.wiley.com)

The case builds on a small but clinically meaningful body of literature around PEG aspiration in veterinary and human medicine. PEG-electrolyte solutions are commonly used for bowel preparation and other gastrointestinal indications in dogs, and they’re generally viewed as safe when administered correctly. But aspiration has long been recognized as a serious complication. In human medicine, misplaced nasogastric tubes and pulmonary infusion of PEG solution have caused acute respiratory failure requiring intubation and mechanical ventilation. In veterinary medicine, a 2020 report described successful bronchoscopic lavage after PEG aspiration in a dog, underscoring how fast lung injury can progress even when the initial volume seems limited. (pubmed.ncbi.nlm.nih.gov)

According to the conference proceedings associated with the current report, the patient was a 3-year-old intact female Chihuahua-Pomeranian crossbreed referred after eating garbage, including diapers and spare ribs. After sedation, a nasoesophageal tube was placed and PEG plus activated charcoal solution was started, but the tube had entered the trachea. The dog developed coughing and dyspnea consistent with aspiration pneumonitis. Initial management included bronchoalveolar lavage and medical support, including antibiotics, but the respiratory injury progressed and mechanical ventilation became necessary. During ventilation, clinicians also managed hyperglycemia of unclear origin and severe clogging of heat-moisture exchanger filters by PEG-containing material, which contributed to marked hypercapnia. The dog was weaned after four days and ultimately recovered fully. (evecc-congress.org)

That filter-clogging detail may be especially useful for ICU teams because it points to a practical complication, not just a physiologic one. The report suggests aspirated PEG-charcoal material can continue to interfere with ventilation after intubation by obstructing components of the breathing circuit. That’s a reminder that these cases may require repeated reassessment of equipment function, gas exchange, and airway clearance, in addition to standard monitoring of oxygenation and lung mechanics. More broadly, aspiration-related lung injury in dogs can escalate to veterinary acute lung injury or acute respiratory distress syndrome, conditions already associated with high acuity and the need for advanced respiratory support in some patients. (evecc-congress.org)

Published expert commentary specific to this case appears limited so far, but the surrounding literature offers a fairly consistent message. The 2020 canine PEG aspiration report concluded that bronchoscopy and lavage should be pursued early because PEG-induced pulmonary edema can evolve rapidly. Human case literature has similarly supported early bronchoscopy and bronchoalveolar lavage in PEG aspiration because removing the solution from the airways appears central to limiting ongoing injury. At the same time, general respiratory references note that large-volume lavage is not routinely recommended for aspiration syndromes overall, which makes patient selection and clinician judgment important when the aspirated substance itself may be a major driver of chemical injury. (onlinelibrary.wiley.com)

Why it matters: For veterinary professionals, this report is useful on two levels. First, it reinforces the importance of preventing iatrogenic aspiration during tube placement and decontamination, especially when sedated patients receive PEG solutions or activated charcoal. Toxicology guidance and clinical references consistently warn that activated charcoal should not be given without airway protection in patients that can’t adequately protect their airway. Second, the case offers a proof of concept that aggressive ICU care, including bronchoalveolar lavage and several days of mechanical ventilation, can result in survival even after a severe event that might previously have carried a grave prognosis. That could influence referral decisions, client counseling for pet parents, and early escalation in specialty settings. (merckvetmanual.com)

What to watch: The next step is the full article itself. Clinicians will want details on tube-placement confirmation, lavage technique, antimicrobial rationale, ventilator settings, and how the team handled complications such as hypercapnia and filter obstruction. It will also be worth watching whether this case, alongside earlier PEG aspiration reports and recent severe aspiration management papers, starts to shape more explicit recommendations for airway protection, bronchoscopy, and referral thresholds in dogs with chemical aspiration from GI decontamination or bowel-prep agents. (evecc-congress.org)