As the "new" guy I got my first taste of sick patients. Here we go 92 y/o with hx of of CAD s/p CABG 26 years ago, recent echo roughly 3 years ago showed depressed EF 40% PA systolic pressures 60mmhg, history of atrial fibrillation currently in NSR, currently with chronic dementia currently delirious secondary to pain, with hip dislocation which needs a revision.Vitals 120/60 hr 85 RR 20. Not oriented only moans in pain. Not cooperative.
Anesthetic Plan
Due to ms not a good candidate for neuroaxial unless more cooperative after a little versed/fentanyl which I highly doubt.
Pre-op:
Make sure her BB is on board for both post mi prevention and afib control. Assess previous coronary studies if on hand.
Lines: A-line. Extra Monitor: TEE if accessible. Assess RV fx/preload/EF/new RWA/Atrial appendage.
Induction:
Versed and Fentanyl titrate to BIS. Maybe a touch of propofol (20 mg). Airway looks good, roc. tube.
Maintenance:
Anesthesia: Low mac (0.3 to 0.5) titrated to bis, with narcotic for BP/HR spikes.
CAD/CHF: Insure HR 60-80s. Treat stimulation with narcotics/esmolol. Insure low normal preload to decrease wall stress while maintaining CO. NG on hand for HTN. HR control is very important seeing as high HR will diminish both LV and RV subendocardial perfusion for this pt.
A. Fib: R2 pads and connect to defibrillator to insure working. Bare minimum at least one in room. Esmolol on hand for rate control.
PHTN: Keep oxygenation high and avoid any desat on induction, minimize acidosis by staying ahead of Hbg/CO, avoid light anesthesia.
Emergence:
Slow, smooth extubation to avoid any rapid VS changes. Epidural placement would be nice for post op pain control if possible to sneak one in but most likely not due to positioning .Supplement with narcotics.
What is most worrisome: LV and/or RV failure.
LV: A. Fib that converts to RVR-> already no atrial kick with poor coronary circulation->Rapid decompensation,
RV: increase pulm HTN-> RV strain-> lose forward flow -> Rapid decompensation