In a patient with active bleeding presumed from a side branch of the superior mesenteric artery, who is unsuitable for interventional radiology or open surgery and has had warfarin reversed with beriplex (prothrombin complex concentrate) to a therapeutic international normalized ratio, is it appropriate to maintain permissive hypotension with a mean arterial pressure around 60 mmHg to control the bleeding?

Permissive Hypotension Strategy in Non-Surgical SMA Branch Bleeding

In your patient with active SMA branch bleeding who is unsuitable for intervention and has had warfarin successfully reversed, maintaining a MAP of 60 mmHg as a permissive hypotension strategy is NOT appropriate and should be abandoned immediately. The permissive hypotension concept applies specifically to traumatic hemorrhagic shock with ongoing surgical bleeding, not to non-traumatic gastrointestinal or mesenteric bleeding in patients who cannot undergo definitive hemostasis.

Critical Distinction: This is NOT Trauma

The 2025 ESICM guidelines 1 and 2023 European trauma guidelines 2 explicitly support permissive hypotension (MAP 50-60 mmHg or systolic 80-90 mmHg) only in traumatic hemorrhagic shock until bleeding is surgically controlled. Your patient has:

• Non-traumatic mesenteric bleeding (SMA branch)
• No possibility of surgical or IR control (deemed unfit)
• Already achieved hemostatic reversal (INR normalized from 6.5 to 1.0 with Beriplex)

The rationale for permissive hypotension in trauma is to minimize blood loss while racing to the operating room for definitive hemorrhage control 1, 2. This does not apply when definitive control is impossible.

What You Should Do Instead

Target a MAP ≥ 65 mmHg immediately for the following reasons:

1. Maintain Organ Perfusion

• With no surgical option available, your only strategy is to support spontaneous hemostasis through adequate perfusion pressure
• A MAP of 60 mmHg risks critical organ hypoperfusion, particularly:
  • Renal failure (especially relevant given likely hypovolemia)
  • Mesenteric ischemia (ironically worsening the very territory that's bleeding)
  • Cerebral hypoperfusion in an elderly patient

2. The Coagulopathy is Already Reversed

• Beriplex (prothrombin complex concentrate) has successfully normalized the INR to 1.0 3
• Studies confirm rapid and effective reversal of warfarin with PCC 4, 5, 6
• You've eliminated the iatrogenic bleeding driver—now support physiologic hemostasis

3. Permissive Hypotension Requires a Definitive Endpoint

The trauma guidelines state permissive hypotension is maintained "until major bleeding has been stopped" 2. In trauma, this means surgical control. Your patient has:

• No surgical option
• No IR option
• Only spontaneous hemostasis as a possibility

Prolonged hypotension without a plan for definitive control will lead to multi-organ failure, not hemostasis.

Practical Management Algorithm

Immediate Actions:

1. Increase MAP target to ≥ 65 mmHg using:

   • Judicious crystalloid resuscitation (balanced crystalloid preferred over 0.9% saline per trauma guidelines 2)
   • Noradrenaline if fluids insufficient 2—the trauma guidelines support vasopressor use when target BP cannot be achieved with restricted fluids alone, particularly when systolic BP < 80 mmHg

2. Continue Vitamin K administration (should already be given with Beriplex 3) to maintain factor levels beyond PCC's 6-12 hour duration

3. Transfuse blood products as needed to maintain hemoglobin and support oxygen delivery

Monitoring Strategy:

• Serial lactate and base deficit to assess adequacy of resuscitation
• Urine output (target ≥ 0.5 mL/kg/hr)
• Mental status in this elderly patient
• Repeat hemoglobin every 2-4 hours initially

Reassess Intervention Feasibility:

• As hemodynamics stabilize with adequate MAP, reconsider IR consultation
• Even "unfit" patients may tolerate IR if hemodynamically optimized
• Consider repeat CT angiography if bleeding continues despite normalization of coagulopathy

Critical Pitfalls to Avoid

Do not continue permissive hypotension beyond the acute reversal period. The concept does not apply to:

• Non-traumatic bleeding
• Patients without access to definitive hemorrhage control
• Situations where coagulopathy has been corrected

Watch for thrombotic complications from PCC administration 3. While your patient needed reversal, the boxed warning notes increased thrombotic risk, particularly in patients with:

• Recent thromboembolic events (within 3 months)
• DIC, sepsis, or severe vascular disease

Your patient likely has significant vascular disease (SMA pathology). Monitor for stroke, MI, DVT, or PE.

Avoid excessive crystalloid but don't withhold adequate resuscitation. The trauma guidelines support "restricted volume replacement" 2, but this means avoiding supranormal targets, not accepting organ hypoperfusion.

The Bottom Line

Your patient's bleeding must stop spontaneously or they will die—there is no surgical rescue. Maintaining MAP 60 mmHg guarantees multi-organ failure while hoping for spontaneous hemostasis that is less likely to occur in a hypoperfused state. Target MAP ≥ 65 mmHg, support coagulation (already achieved), and optimize conditions for spontaneous vessel thrombosis while preserving organ function. If bleeding continues despite these measures, have frank goals-of-care discussions with the family, as prognosis is poor without intervention capability.