Friday, December 27, 2013

Lung Donor Management




UK Organ Donor Intensivist Program
Lung Donor Management Strategy

1.     KODA intensivist or clinician should call Dr. Baz (cell phone 352-672-4381) as soon as possible to discuss management of any potential lung donor. If he is not available call Dr. Shafii (cell phone 859-227-3575)
2.     They will want to know status of CXR (text image if possible), ventilator settings and airway pressures (text image of ventilator screen), and results of the oxygen challenge test when available.
3.     3 possible scenarios and our objectives:
a.     Good lung at beginning (clear CXR, PaO2 > 300 on 100% FiO2, normal compliance)
                                               i.     Objective- Keep it good
b.     Bad lung at beginning
                                               i.     Objective:
1.     Identify cause
2.     Attempt to correct
c.     Good lung at beginning which deteriorates
                                               i.     Objective:
1.     Shouldn’t happen
2.     How to prevent
3.     How to reverse.
4.     Drs. Baz and Shafii identified key components to donor management for optimal lung donation:
a.     Avoid excess fluids and use of vasoconstrictors
b.     Hormonal therapy: steroids, thyroid, vasopressin
c.     Antibiotics—broad spectrum (iv cefepime or zosyn or meropenem with IV zyvox)
d.     Lung protective ventilation

5.     Baz/Shafii believe early management prior to declaration of brain death and in first 12 hours after brain death are critical
a.     Preventing fluid overload
b.     Preventing excess use of vasoconstrictors

6.     KODA intensivists should be involved in management of all patients with catastrophic brain injury which is not thought to be survivable and will likely progress to brain death or withdrawal of care. This should be pursued aggressively.

7.     Strongly consider early placement of PAC in all patients who are potential thoracic organ donors as well as FloTrac and early cardiac ECHO to help provide evidence based, rational and optimal hemodynamic and fluid management.

8.     The following include the recommendations of Drs. Baz and Shafii

a.     Ventilator management
                                               i.     Tidal volume 6-8 ml/kg IBW/PBW
                                             ii.     PEEP 5-10 cm H2O
                                            iii.     FiO2 40-50 %
                                            iv.     Recruitment maneuver limited to 5 minutes maximum,
                                              v.     Keep on at least 5 cm PEEP during apnea test, and during any transportation (Use transport ventilator with PEEP on transports.)

b.     Bronchoscopy information desired:
                                               i.     Anatomy
                                             ii.     Is there evidence of infection, i.e., presence of purulence
                                            iii.     Do not lavage unless absolutely necessary to clear secretions. This may worsen chest x-ray and blood gas exchange.
                                            iv.     Simply aspirate any purulence to send for smear and culture

c.     Oxygen Challenge test
                                               i.     Prefer on 5 cm PEEP, but OK up to 8 cm
                                             ii.     Initially and q 12 hours and just before going to harvest.
d.     Antibiotics:
                                               i.     cefepime (2 gm IV Q 8 hrs) and zyvox (linezolid) (600 mg IV Q 12 hrs)
                                             ii.      if penicillin allergy---may substitute meropenem for cefepime.
e.     Hormonal therapy (corticosteroids, thyroid, vasopressin
f.      Preferred vasopressor/inotrope is Dopamine 4 mcg/kg/min; No higher than 10
g.     CT scans
                                               i.     Individualized indications---history of smoking in donors (more than 20 pack-years, extent of pneumonia)

9.     It would be very beneficial to assess this protocol and identify any problems to review every case in detail after the case is done.
a.     With CXR and clinical record including details of fluid, vasoactive drugs, ventilator settings etc.
b.     Include KODA intensivist and KODA clinician, Drs. Baz and Shafii
c.     Consider getting pathologic study of any rejected lungs.
d.     Forward any concerns to Dr. Bernard, Chair of the Organ Donation and Transplantation Action Council.

Meeting of E Hessel with Maher Baz and Alexis Shafii to Discuss management of potential lung donors
Friday, Feb 5, 2016, 1100-1200; EAH Feb 6, 2016; 1430 EST; Revised Feb 12, 2016