Advanced ICU Protocols for Optimal Organ Preservation

Brain Death Organ Donor Management

The “Rule of 100”
Importantly, target parameters for optimal organ function include:
• Systolic BP >100 mmHg • Urine output >100 ml/hr
• PaO₂ >100 mmHg • Hemoglobin >100 g/L • Blood sugar 100% normal

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Primary Management Goals

Firstmaintain physiological homeostasis for optimal organ function. 
Secondmaximize graft viability in organ recipients. 
Additionallyprevent organ deterioration through standard ICU monitoring. 
Finallyensure ethical management throughout the process.

Comprehensive Management Approach

1. Temperature Management

Primarily, prevent hypothermia (<34°C). Therefore, target core temperature >35.8°C.

Methods include:

  • Warm blankets
  • Fluid warmers
  • Heated humidifiers
  • Adjusted ambient temperature

2. Cardiovascular Management

Simultaneously, maintain normovolemia while optimizing cardiac output. Furthermore, control blood pressure and minimize the use of vasoactive agents. Additionally, maintain organ perfusion throughout.

3. Respiratory Management

Specifically, implement lung protective ventilation:

  • Tidal volume: 6 ml/kg ideal body weight
  • PEEP: 5-10 cmH₂O
  • Peak pressure: <40 cmH₂O
  • Plateau pressure: <35 cmH₂O
  • Target SpO₂: >92%
  • Target PaO₂: >70 mmHg

4. Endocrine Management

Concurrently, manage diabetes insipidus while providing thyroid hormone replacement. Additionally, provide corticosteroid support and manage insulin requirements.

Hemodynamic Targets

Medical teams should maintain these parameters:

ParameterTarget RangeMonitoring Method
Heart Rate60-120 BPMContinuous ECG
Blood PressureSBP >100, MAP >70 mmHgArterial line
Central Venous Pressure6-10 mmHgCVP monitor
Urine Output0.5-3 ml/kg/hrHourly measurement
SpO₂>96%Pulse oximetry
Cardiac Index>2.4 L/min/m²Thermodilution

Pharmacological Support

Vasopressor Preferences:

First-lineUse vasopressin (beneficial for diabetes insipidus, doesn’t reduce organ blood flow)

Second-lineAdminister norepinephrine (increases renal and coronary blood flow)

Avoid prolonged useMinimize dopamine (depletes norepinephrine stores, affects post-transplant function)

Fluid Management:

PreferredUse crystalloids with balanced salt (RL, 0.45% NS)

AvoidDo not use 0.9% NS (hyperchloremic acidosis), 5% dextrose (hyperglycemia)

ColloidsAvoid HES (damages renal cells), consider albumin 4%/20% as acceptable

Hormone Replacement:

Specifically:

  • Vasopressin: 20 U in 500 ml D5W, titrate based on urine output
  • Levothyroxine: 150 μg daily IV
  • Methylprednisolone: 200 mg in 100 ml NS, 4 ml/hr infusion

Monitoring Protocol

Continuous assessment requires:

  • Vital signs: Every 1 hour
  • Urine output: Hourly measurement
  • Arterial blood pressure: Continuous monitoring
  • ABG analysis: Every 6 hours
  • Core temperature: Every 1 hour

Therapeutic Targets:

Maintain MAP >65 mmHg, ensure hemoglobin >10 g/dL. Additionally, keep sodium <160 mmol/L and potassium 3.5-5 mmol/L. Furthermore, target mixed venous oxygen saturation >70%, maintain blood glucose 140-180 mg/dL, and ensure central body temperature >36.0°C.

Required Investigations

Laboratory Tests:

Basic tests include: CBC, LFT with proteins, RFT, electrolytes, including Ca, Mg, PO4

Cardiac markersTest troponin I, CPK-total, pro-BNP

Tumor markersScreen for CEA, PSA, CA19-9, CA125, alpha-fetoprotein

Endocrine assessmentEvaluate T3, T4, TSH, HbA1c

Coagulation studiesCheck PT, INR

Infection screeningPerform blood grouping, CRP, PCT, ESR

Infectious Disease Screening:

Comprehensively test for HIV, Hepatitis A/B/C, CMV, EBV, and syphilis. Additionally, obtain urine, blood, and sputum culture & sensitivity.

HLA Typing:

Specifically, perform HLA A, B, DR, DQ DNA typing and conduct HLA crossmatch compatibility testing.

Imaging Studies:

Routinelyobtain:

  • Chest X-ray
  • Hepatobiliary and kidney ultrasonogram
  • Non-contrast CT abdomen and pelvis
  • Non-contrast brain CT scan

General ICU Care

Standard care includes:

  • Central line and arterial line insertion and monitoring
  • Nasogastric tube insertion and care
  • Temperature monitoring (nasal or rectal)
  • Foley catheter management
  • Head elevation 30°-40°
  • Regular side-to-side positioning
  • DVT prophylaxis with pneumatic compression
  • Eye protection and frequent airway suctioning
  • Ulcer prophylaxis and broad-spectrum antibiotics

Dr. Nikhil Patel – Footer This Is Footer Code With CSS