Emergency laparotomy with septic shock and oliguria — bundle, fluids, dialysis timing and follow-up

Management walkthrough

Stage 2 by both doors — then bundle without delay. Creatinine 2.4-fold sits in the 2.0–2.9 stage-2 band and 14-hour oliguria below 0.5 sits past the 12-hour stage-2 line — postoperative AKI by the 7-day definition, with a focused kidney health assessment adding prognosis beyond the stage.^[1][4] She concentrates the risk list — older age, emergency major surgery, septic shock, pressors, vancomycin, contrast — so run all four bundle planks (haemodynamics with monitoring, volume restoration, nephrotoxin/contrast avoidance, no hyperglycaemia) quoting BigpAK-2's multicentre win: moderate-severe AKI 14.4 versus 22.3%, OR 0.57, NNT 12, no harm.^[19]

Resuscitate the sepsis, protect the kidney with the same fluids. Sepsis-associated AKI strikes nearly two-thirds of ICU sepsis admissions, mostly severe — yet one-hour-bundle fluid adherence nearly halved severe SA-AKI mortality (adjusted OR 0.62) — so give early balanced crystalloids per bundle fidelity, never RELIEF-style restriction (3.7 versus 6.1 L raised AKI 8.6 versus 5.0%), choosing balanced over saline (mortality OR 0.84) without overload.^[22][20][21] Switch vancomycin to AUC-guided dosing (less AKI than trough-guided, OR 0.625) and hold further nephrotoxins — prevention is avoidance, since no targeted drug is approved for AKI treatment.^[32][6]

No dialysis today — triggers written, floor known, follow-up booked. Septic shock with severe AKI inherits IDEAL-ICU: early versus delayed RRT stopped for futility at 58 versus 54% mortality with 38% of delayed never dialysed — so watch, with AKIKI's five triggers (hyperkalaemia, acidosis, oedema, BUN above 112, 72-hour oliguria) ending the wait, and AKIKI-2's floor (no gain, HR 1.65 harm pushing to BUN 140) capping the wait.^[41][39][40] Before discharge, counsel plainly: even mild AKI predicts 1-year death near trebled (HR 2.96), creatinine dips overestimate recovery, and focused kidney health assessment after discharge is essential.^[10][4]