Postoperative Hemorrhage Management

Algorithm Steps

1. ▶

   Start

   Postoperative Patient with Suspected Bleeding

   Signs: Tachycardia (earliest sign), hypotension, dropping Hb, increasing drain output (bloody), wound hematoma, altered mental status, oliguria, cool extremities.

   1. ●

      Action

      Rapid Assessment

      1) ABC assessment - ensure airway/breathing stable. 2) Two large-bore IVs (if not present). 3) Type & Screen (crossmatch if not done). 4) STAT labs: CBC, coags (PT/INR/PTT/fibrinogen), lactate, BMP. 5) Check drain output, wound, surgical site. 6) Review operative report for bleeding risks.

      1. ◆

         Decision

         Hemodynamic Status?

         STABLE: SBP >90, MAP >65, HR <120, mentating, adequate UOP. UNSTABLE: Hypotension, tachycardia >120, altered mental status, poor perfusion, oliguria. SHOCK: SBP <80 or requiring vasopressors, unresponsive to initial fluids.

         1. ⚠

            Warning

            ⚠️ Don't Wait for Labs

            In active hemorrhage, don't wait for lab results to initiate transfusion. Clinical signs are more important than Hb level. By the time Hb drops significantly, patient may be in late decompensated shock. Treat the patient, not the lab.

         2. ●

            Action

            Stable - Complete Workup

            1) Serial H&H q4-6h. 2) Coagulation profile. 3) Consider CT angiogram if source unclear. 4) Ultrasound for hematoma assessment. 5) Hold anticoagulation. 6) Type & Crossmatch 4 units pRBC.

            1. ◆

               Decision

               Bleeding Rate Assessment

               Assess: Hb trend over 4-6 hours. Drain output rate. Transfusion requirement. SLOW: Hb stable or slow drop, drain output slowing. ONGOING: Continuous Hb drop, persistent high drain output, requiring repeated transfusion.

               1. ●

                  Action

                  Observation & Supportive Care

                  Bleeding appears self-limited. Serial Hb monitoring q6-8h. Transfuse for Hb <7 (or <8 if CAD). Correct coagulopathy. May resume prophylactic anticoagulation when stable. Continue monitoring for 24-48h.

                  1. ●

                     Action

                     Post-Hemorrhage Control Care

                     1) ICU monitoring. 2) Serial labs to confirm stability. 3) Continue warming, correct electrolytes. 4) Mechanical VTE prophylaxis (hold anticoag until cleared by surgery). 5) Address anemia - may need further transfusion. 6) Debrief and document.

                     1. ✓

                        Outcome

                        Bleeding Controlled

                        Hemostasis achieved. Vitals stable. Continue postoperative recovery. Plan for DVT prophylaxis resumption.

               2. ●

                  Action

                  Coagulopathy Assessment & Correction

                  FFP for INR >1.5. Platelets for Plt <50K. Cryoprecipitate for fibrinogen <150. Vitamin K 10mg IV if warfarin. Prothrombin complex concentrate (PCC) for warfarin/factor Xa inhibitors. Idarucizumab for dabigatran. DDAVP for uremic bleeding or platelet dysfunction.

                  1. ◆

                     Decision

                     Source of Bleeding?

                     SURGICAL: Obvious wound bleeding, increasing drain output, hematoma. Often requires return to OR. COAGULOPATHIC: Oozing from all sites, no discrete source. Correct coagulopathy. MIXED: Common - both surgical bleeding and coagulopathy from blood loss.

                     1. ◆

                        Decision

                        Return to OR Indicated?

                        YES if: Hemodynamic instability despite resuscitation, ongoing transfusion requirement (>4-6 units), expanding hematoma threatening airway/compartment, clear surgical source, failure to respond to correction of coagulopathy. NO if: Bleeding controlled with correction of coagulopathy, stable vital signs, self-limited bleeding.

                        1. ●

                           Action

                           Return to OR

                           1) Notify OR team - emergency case. 2) Continue resuscitation during transport. 3) Keep blood products infusing. 4) Intraoperative: Evacuate hematoma, identify source, achieve hemostasis. 5) Consider damage control if coagulopathic (pack, plan return). 6) ICU admission postop.

                        2. ●

                           Action

                           Interventional Radiology

                           Consider angioembolization if: Discrete arterial source on CTA, patient stable enough for angio suite, suitable anatomy (hepatic, splenic, pelvic bleeding), IR available. Less invasive than reop for select cases. Not for rapid exsanguination.

         3. ●

            Action

            Unstable - Aggressive Resuscitation

            1) Activate MTP (Massive Transfusion Protocol) if anticipated >10 units/24h. 2) Transfuse pRBC empirically (don't wait for labs). 3) Replace 1:1:1 ratio (pRBC:FFP:platelets). 4) Consider TXA (1g IV then 1g over 8h). 5) Calcium replacement (for citrate toxicity). 6) Keep patient warm.