KIDNEY TRANSPLANT Flashcards

0
Q

WHAT POPULATION OF PATIENTS WAS GENERALLY REJECTED FOR TRANSPLANT BUT IS NOW BEING CONSIDERED FOR TRANSPLANT?

A
TYPE 2 DM.  (AS LONG AS NO VASCULAR COMPLICATION)
ADVANCED CARDIOMYOPATHY
MORBID OBESITY
VASCULITIS
SICKLE CELL DISEASE
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1
Q

WHAT DOES THE PREOP EVALUATION OF RENAL TRANSPLANT PT LOOK LIKE?

A

USUALLY ASA 3-4. ALWAYS E.

MULTI ORGAN ASSESSMENT. LYTES. HGB. IV ACCESS. METS SCALE. USUALLY LOW HBG SO PREOXYGENATE.

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2
Q

IS THERE A HIGH INCIDENCE OF CAD AND CARDIOMYOPATHY IN DIALYSIS PTS?

A

YES. THIS IS NOT A CONTRAINDICATION FOR TRANSPLANT BUT THEY SHOULD HAVE ADEQUATE PERFUSION FOR THE NEW KIDNEY SO ANGIOPLASTY/REVASCULARIZATION SHOULD BE DONE PRIOR TO TRANSPLANT IF NECESSARY.

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3
Q

IS UREMIC CARDIOMYOPATHY A REVERSIBLE STATE?

A

YES. UREMIC CARDIOMYOPATHY IS A CAUSE FOR CHF (ALONG WITH ANEMIA / HYPOALBUMINEMIA)
THIS IS BEST DETECTED ON ECHO.
EF IMPROVES FROM 30 TO 60% POST TRANSPLANT.

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4
Q

SHOULD PROP ANTI HTN BE CONTINUED THE DAY OF SURGERY?

A

YES. ALL EXCEPT ACE INHIBITORS….THESE ARE STOPPED THE DAY BEFORE.
HTN IS 2ND LEADING CAUSE OF ESRD. DM IS NO. 1.

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5
Q

WHAT IS THE LEADING CAUSE OF DEATH FOR PATIENTS UNDERGOING RENAL TRANSPLANT?

A

MI. DO SLOW CARDIAC INDUCTION WITH HIGH NARCOTIC. ETOMIDATE. ROC. V SUX.

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6
Q

POSITIVE PRAYER SIGN INDICATES WHAT?

A

DIFFICULT INTUBATION.

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7
Q

WHAT HCT WOULD YOU CONSIDER BLOOD TRANSFUSION FOR TRANSPLANT CAD PT?

A

25%.
RENAL PTS PRODUCE LESS ERYTHROPOIETIN. LOW HBG. RIGHT SHIFT ON OXYHGB CURVE.
MAY OPTIMIZE PT WITH HUMAN RECOMBINANT EPO.

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8
Q

WHAT IS UREMIC COAGULOPATHY?

A

COMPLEX SYNDROME. PLTS DONT WORK. INEFFECTIVE PRODUCTION OF FACTOR 8 AND VON WILLEBRAND FACTOR.
PREVENT: DIALYSIS PRIOR TO SURGERY TO IMPROVE PLT FX.
TREAT: CONJUGATED ESTROGEN AND DESMOPRESSIN. MAY NEED CRYO/FFP DURING SURGERY.

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9
Q

CAN YOU DO REGIONAL ON THESE PTS?

A

AS LONG AS COAGS ARE OKAY. AND THE OPERATION IS SHORT ENOUGH. SAB MAY NOT LAST LONG ENOUGH SO EPIDURAL IS BETTER. 99% ARE GETA WITH RSI.

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10
Q

ARE REDUCTIONS IN DOSAGE OF PROTEIN BOUND DRUGS NECESSARY FOR RENAL TRANSPLANT PTS?

A

YES. THEY MAKE LESS PROTEIN SO THEIR WOULD BE MORE FREE DRUG. REDUCE THE DOSE.

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11
Q

WHY DO ESRD PTS WITH DM HAVE ALTERED GI MOTILITY?

WHAT DOES THIS MEAN?

A

DIABETIC GASTROPARESIS.
RISK FOR ASPIRATION. RSI.
30 ML SODIUM CITRATE (BICITRA). REGLAN 10MG 30 MIN PRE INDUCTION. PEPCID.

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12
Q

HOW OFTEN DO YOU ASSESS AV FISTULA DURING SURGERY?

A

AT LEAST EVERY 15 MIN.

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13
Q

WHY DO YOU NEED A CVP WITH KIDNEY TRANSPLANT?

A

TO WATCH GRAFT PERFUSION AND EARLY FUNCTION. THIS LOWERS RISK FOR ACUTE TUBULAR NECROSIS AND TRANSPLANT FAILURE FROM HYPOVOLEMIA. YOU WANT THEM FLUID LOADED TO A CVP 10-15. IF A UDALL IS IN PLACE YOU CAN USE THAT.

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14
Q

CAN YOU USE PROPOFOL SAFELY FOR RENAL TRANSPLANT?

A

YES BUT USE LESS THAN USUAL 2MG/KG DUE TO VASODILATION.

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15
Q

WHAT IS THE AGENT OF CHOICE FOR RENAL TRANS?

A

ISO D/T PERIPH. VASODILATION, MILD CARDIO-DEPRESSIVE EFFECTS, PRESERVATION OF RENAL FLOW AND LOW RENAL TOXICITY.

ENFLOURANE/SEVO PRODUCE FLOURIDE METABOLITES THAT INHIBIT ADH ACTION ON DCT.

16
Q

WHAT IS THE NMB OF CHOICE IN RENAL TRANS. PTS?

A

NIMBEX. HOFFMAN ELIMINATION.

17
Q

WHAT OPIOIDS ARE USED IN RENAL TRANS. AND WHY?

A

FENT/ REMIFENT. D/T MORE RAPID CLEARANCE AND THEREFORE LESS RISK OF RESPIRATORY DEPRESSION.

18
Q

WHAT 3 PERIOD AFFECT THE VIABILITY OF THE KIDNEY?

A
  1. MANAGEMENT OF DONOR KIDNEY (LIVING/CADAVERIC)
  2. HOW ORGAN IS PRESERVED
  3. PERIOP MANAGEMENT OF KIDNEY RECIPIENT.
19
Q

HOW DO YOU TREAT A LIVING DONOR? (25%)

A

POSITIONING MAY IMPEDE VENOUS RETURN AND CAUSE VQ MISMATCH. MUST HYDRATE PRIOR TO POSITIONING! GIVE MANNITOL AND LASIX PRIOR TO CLAMPING OF RENAL ART. AVOID DIRECT ACTING PRESSORS (NEO) RENAL DOSE OF DOPAMINE WILL BE RUNNING AND IS USUALLY SUFFICIENT TO KEEP BP UP. AFTER KIDNEY OUT….NORMAL EMERGENCE.

20
Q

HOW DO YOU TREAT A CADAVAR DONER?

A

MAINTAIN PAO2 > 100%. NORMOCAPNIIA, HCT > 30%, SBP>100. U/O 1ML/KG/HR USING MANNITOL, DOPAMINE AND LASIX.

21
Q

WHAT ARE CONTRAINDICATIONS TO DONATING A KIDNEY?

A

ABSOLUTE: HYPOTHERMIA, HYPOTENSION. LUPUS, METABOLIC DISORDERS, TUMOR, GENERALIZED INFECTION, DIC, HEP B AND HIV.
RELATIVE: >70 YO, DM, VASCULAR DISEASE, HIGH CREATININE AND EXTENSIVE USE OF PRESSORS BEFORE DEATH.

22
Q

WHAT DEFINES ISCHEMIC TIME OF KIDNEY?

A

FROM CLAMPING OF DONER RENAL ART TO ANASTAMOSES OF RECIPIENT.

23
Q

WHAT DEFINES WARM ISCHEMIA?

A

BEGINS: CLAMP OF RENAL ART-PERFUSION OF COLD SOLUTION.
RESUMES: KIDNEY PLACED IN RECIPIENT
ENDS: ANASTAMOSIS

24
Q

HOW LONG SHOULD COLD ISCHEMIA BE?

A

24 HRS IDEALLY. BUT TRANSPLANTS AFTER 72 HOURS HAVE BEEN SUCESSFUL.

25
Q

WHAT IS THE BEST MEASURE OF HOW THE NEW KIDNEY IS WORKING?

A

URINE OUTPUT. EARLY U/O IS PARAMOUNT. U/O IS CALLED OUT Q15 MIN. WE TRY TO STIMULATE U/O….GRAFT SURVIVAL DECREASES BY HALF WHEN U/O DELAYED GREATER THAN 12 HRS.

26
Q

WHAT IS THE MOST IMPORTANT THING YOU CAN DO TO IMPROVE LIKELIHOOD OF IMMEDIATE GRAFT FXN?

A

MAINTAIN INTRAVASULAR VOLUME. MAINTAIN CVP 10-15

27
Q

WHAT WILL BE USED TO GET KIDNEY IN HYPERDYNAMIC STATE?

A

CVP 10-15. DOPAMINE 3-6 MCG/KG/MIN. MANNITOL, LASIX (ASCENDING LOOP OF H.)
CALCIUM CHANEL ANTAGONISTS INJECTED DIRECTLY INTO RENAL VEIN TO PREVENT SPASM….IF BP DROPS USE EPHEDRINE NOT NEO.

28
Q

WHAT DO YOU WATCH FOR AFTER VASCULAR ANASTOMOSIS (SURGEON USES VERAPAMIL ON VESSELS)

A

HYPOTENSION. USE EPHEDRINE NOT NEO. FLUIDS WILL BE OPEN. CONSIDER FFP. ON LOW DOSE DOPAMINE.

29
Q

WHEN DO YOU USE ALBUMIN?

A

IF ALBUMIN IS < 3 AND NS IS MORE THAN 50ML/KG

30
Q

WHAT DOES CYTOKINE RELEASE LOOK LIKE?

A

MH!!!! TACHYCARDIA, PULMONARY EDEMA.

31
Q

HOW DO YOU WAKE THESE PTS UP?

A

NO BUCKING! MOST CAN BE EXTUBATED. MONITOR FOR ORGAN REJECTION…THEY WILL GO TO ICU ON GTTS.