Cardiac Arrest in Cats: A Vet’s 2025 Guide to Emergencies & Care ❤️🐾
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Cardiac Arrest in Cats: A Vet’s 2025 Guide to Emergencies & Care ❤️🐾
By Dr Duncan Houston, BVSc
🔍 What Is Cardiac Arrest in Cats?
Cardiac arrest occurs when a cat's heart stops beating effectively—often following respiratory failure for more than six minutes—or during severe illness or anesthesia, making it an immediate life‑threatening emergency :contentReference[oaicite:3]{index=3}.
⚠️ Warning Signs & Types
Watch for these red‑flag indicators:
- Sudden collapse or unconsciousness
- Bluish gums (cyanosis), dilated pupils :contentReference[oaicite:4]{index=4}
- No response to stimulation
- Heavy gasping, labored breathing, hypothermia
- Poor pulse, no heartbeat on chest auscultation :contentReference[oaicite:5]{index=5}
🧬 Common Triggers & Underlying Causes
Cardiac arrest can stem from:
- Severe hypoxia—oxygen deprivation from respiratory failure :contentReference[oaicite:6]{index=6}
- Severe heart disease (e.g. cardiomyopathy, heart trauma, heart tumors)
- Septic shock, electrolyte imbalances, anemia
- Brain injury, severe fluid loss or trauma
- Anesthetic complications :contentReference[oaicite:7]{index=7}
🚨 First Aid & Emergency Response
If your cat collapses or stops breathing:
- 🚨 Call your veterinarian or emergency clinic immediately.
- 🔹 Clear airway—ensure tongue isn’t blocking breathing.
- 💓 Begin chest compressions—at 100–120/min centrally in chest, compress ~⅓–½ depth, allow full recoil.
- 🌬️ Provide rescue breathing—cover nose, breathe into mouth 10×/min.
- Alternate compressions and breaths in cycles (30:2) until help arrives.
- Monitor pulse and breathing—stop CPR if signs of recovery occur.
🏥 Hospital Care & Diagnosis
At the clinic, your cat will undergo:
- Airway support and oxygen therapy :contentReference[oaicite:8]{index=8}
- Cardiopulmonary Resuscitation (CPR)—including intubation, chest compressions, medications
- Monitoring: ECG, blood pressure, pulse oximetry, body temperature
- Diagnostics to find cause: chest X‑rays, echocardiogram, ECG, bloodwork, blood gases, electrolytes :contentReference[oaicite:9]{index=9}
💉 Treatment & Stabilization
- Medications for heart rhythm support and circulation
- IV fluids to correct dehydration, shock, or metabolic issues
- Treat underlying condition—e.g. infections, electrolyte imbalance, trauma
- Possible open‑chest resuscitation or intracardiac drug administration in critical cases—rarely required :contentReference[oaicite:10]{index=10}
📅 Prognosis & Long‑Term Care
Unfortunately, cardiac arrest has a low survival rate—less than 10% recover long-term even with prompt care :contentReference[oaicite:11]{index=11}.
For those that survive:
- Hospitalization for 24–72 hours for monitoring
- Treatment of underlying disease—e.g., heart failure or infection
- Rehabilitation, oxygen therapy, nutritional support
- Follow-ups: ECGs, bloodwork, echocardiograms to assess recovery
Outcomes vary based on cause—those with reversible issues may do well; chronic heart disease carries a guarded to poor long-term prognosis :contentReference[oaicite:12]{index=12}.
🛡️ Prevention & Monitoring
- 🏥 Regular wellness checks—early detection of heart or respiratory disease
- 🫁 Home respiratory monitoring—watch resting rate; >30 breaths per minute may be concerning :contentReference[oaicite:13]{index=13}
- 💓 Screen at‑risk cats (e.g., HCM) via echocardiogram
- ⚖️ Manage chronic diseases—heart conditions, anemia, kidney disease
- 💉 Careful anesthetic planning with your vet
🐾 Advice for Cat Parents
- 📅 Learn CPR basics from your vet or certified courses
- 🧭 Keep emergency contact numbers visible
- 📋 Track breathing rate, appetite, energy, and symptoms
- 📲 Use the Ask A Vet app for urgent advice
- 🏠 Provide supportive home care—quiet rest, nutrition, oxygen if prescribed
- 🛌 Use calming tools from Woopf & Purrz to reduce stress during recovery
📝 Quick Summary Table
| Category | Details |
|---|---|
| Definition | Heart stops contracting → no blood circulation |
| Signs | Collapse, unconsciousness, cyanosis, no breathing or pulse |
| Immediate Care | Call vet → CPR (compressions + rescue breaths) |
| Hospital Treatment | Airway, CPR, medications, diagnostics |
| Prognosis | Low survival (<10%); long-term depends on cause |
| Prevention | Wellness checks, monitoring respiratory rate, manage conditions |