Management of Acute Cor Pulmonale

Immediate Stabilization and Risk Stratification

The European Society of Cardiology recommends administering supplemental oxygen immediately to maintain SaO₂ ≥90% (target 94-98%) using nasal cannula or face mask 1, 2
Escalate to high-flow nasal cannula if conventional oxygen fails to maintain adequate saturation, as recommended by the European Heart Journal 1, 2
Consider non-invasive ventilation before intubation, as positive pressure ventilation can precipitate cardiovascular collapse by reducing venous return and worsening RV failure, according to the European Heart Journal 1, 2, 4

The European Heart Journal suggests exercising extreme caution with fluid administration—aggressive volume expansion worsens RV function 5, 6, 2
Assess volume status using IVC ultrasound or central venous pressure monitoring, as recommended by the European Heart Journal 1, 4
If central venous pressure is low (small/collapsible IVC), consider modest fluid challenge of ≤500 mL, according to the European Heart Journal 1, 5, 6, 2

The European Society of Cardiology defines high-risk PE as cardiac arrest requiring CPR, obstructive shock with end-organ hypoperfusion, or persistent hypotension (systolic BP <90 mmHg or drop ≥40 mmHg lasting >15 minutes) 8, 3
Systemic thrombolysis is first-line treatment for high-risk PE with very few absolute contraindications, according to the European Heart Journal 3
Administer recombinant tissue plasminogen activator (rtPA) 100 mg infused over 2 hours for high-risk PE, as recommended by the European Heart Journal 3

Transfer to ICU or step-down unit with continuous cardiac monitoring and pulse oximetry, as recommended by the European Heart Journal 4
Serial echocardiography and biomarker measurements every 6-12 hours initially to track RV function trajectory, according to the European Heart Journal 4
Monitor for signs of end-organ hypoperfusion: altered mental status, oliguria, rising lactate, as recommended by the European Heart Journal 4

Suspect right-to-left shunting through patent foramen ovale if hypoxemia is refractory to conventional oxygen, according to the European Heart Journal 1, 8, 2
This occurs when right atrial pressure exceeds left atrial pressure and increases risk of paradoxical embolization and stroke, as reported by the European Heart Journal 8

Delaying anticoagulation while awaiting diagnostic confirmation, as warned by the European Heart Journal 2, 3
Excessive fluid administration (>500 mL) causing RV overdistension and hemodynamic collapse, according to the European Heart Journal 1, 5, 6, 2
Premature intubation precipitating cardiovascular collapse from positive pressure ventilation, as cautioned by the European Heart Journal 1, 2, 3, 4
Failing to recognize deteriorating respiratory status as a harbinger of impending hemodynamic collapse in intermediate-risk patients, as noted by the European Heart Journal 4
Missing intracardiac shunting as the cause of refractory hypoxemia, as warned by the European Heart Journal 2