Bacterial meningitis and organ donation · 2018. 9. 25. · Meningoencephalitis and Organ...
Transcript of Bacterial meningitis and organ donation · 2018. 9. 25. · Meningoencephalitis and Organ...
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Bacterial meningitis
and organ donation
Sally H Vitali, MD Chair, Organ Donation and Decedent Affairs Council and Oversight
Committee Boston Children’s Hospital
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Poll Which of the following conditions is most likely to be a
contraindication to organ transplant?
A. Donor with viral encephalitis
B. Donor with bacterial meningoencephalitis
C. Donor with bacterial meningoencephalitis and
bacteremia
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HPI Previously well 6 y/o girl had a headache and fever on
the afternoon of 2/3, kept home from school 2/4 with
frontal headache and fever. When afebrile was without
headache, playful and interactive.
2/5 playing with mom in the early morning and then
developed vomiting and unresponsiveness with GTC
seizures at 7:30 am.
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Emergency Care Taken to urgent care where she had more seizures,
EMS called, gave diastat and took her to OSH ED.
At 11:15 am at OSH she was unresponsive with
nonreactive pupils. Intubated. Bilateral TMs dull,
possibly consistent with otitis media.
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Investigations CT head at 11:45 am was repeated at 3:45 pm.
Rapid flu negative
CBC WBC count 9
Blood and urine cx sent, LP not performed
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2/5
11:40 AM
Head CT
2/5
3:49 PM
Head CT
OSH
Imaging
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Therapies at OSH Meningitic dosing of ceftriaxone
Hypertonic (3%) saline
Mannitol
Fosphenytoin
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Exam @ BCH Intubated, comatose, pupils non-reactive
No reaction to painful stimuli, no gag
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Neuroprotection
3% NaCl infusion for osmotherapy (targeting Na>145)
Dopamine as needed to target MAP 70-80 (assuming ICP>20 and desiring CPP 50-60)
Head of bed up at 30 degrees, maintained in midline
Ventilation with low PEEP and lowest PIP needed to achieve normocarbia
Normothermia
Seizure control
monitor Na, glucose, Osm
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Other Therapies Broad-spectrum antibiotics at meningitic dosing
2/6 afternoon developed DI, remained on vasopressin
throughout rest of course
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Brain MR 2/6 AM
Severe cerebral swelling
resulting in effacement of
the basal cisterns, cortical
sulci, quadrigeminal plate
cistern, and
cerebellopontine angles,
consistent with brain
herniation. The brainstem
is compressed and there is
inferior herniation of the
cerebellar tonsils into the
upper cervical spinal canal.
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Brain MR 2/6 AM
There is hyper
accentuation of the
gray matter relative to
white matter,
consistent with global
anoxic injury.
Signal abnormality
seen along the
ependyma of the
ventricles is suggestive
of ventriculitis.
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Brain MR 2/6 AM
There is no pathologic enhancement of the
leptomeninges or brain parenchyma. This is likely
related to diminished arterial (and gadolinium ) inflow.
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MR Angiography 2/6 AM
The MRA of the circle of Willis demonstrates normal flow-related signal within the visualized common carotid arteries in the neck and diminished flow related signal within the internal carotid arteries to the level of the mid neck and no distal flow related signal intracranially.
Similarly, no flow related signal is seen within the vertebral arteries beyond approximately C2. Flow is present within the external carotid circulation.
Normal
MRA for
comparison
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Etiology Blood cx from Wentworth Douglass grew Hemophilus
influenzae at 19.7 hours
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NEOB evaluation Referred when met the clinical trigger per BCH policy:
“planning brain death testing”
Interested in CSF but willing to wait until after brain
death diagnosis and consent from family.
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Brain death Family meeting after MRI 2/6 discussed brain death
testing the following day
1st brain death exam 8:45 am 2/7, 2nd brain death exam
5:45 pm 2/7. Both consistent with brain death. Na 140-
142, normothermic, and no sedatives on board.
Second family meeting 2/7 to inform family of brain
death diagnosis and discuss the option of organ
donation
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NEOB Donor Management After donation consent, LP performed. Gram stain
abundant polys no organisms. Glucose 30, protein >200.
Donor antibiotics continued through procurement.
Blood, urine, CSF cultures resent 10 pm 2/7 and remained NG at ~36 hours at the time of procurement. Lab called just before cross-clamp in the OR for one final check
Levothyoxine infusion started around 9 pm 2/7 but stopped 6 am 2/8 for tachycardia and hypertension. Pressors were able to be weaned off with T4.
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Lung resuscitation CXR 2/7 9 pm: Persistent left basilar opacity, likely
representing atelectasis.
Increased tidal volume from 7 cc/kg9 cc/kg, PRVC, PIP 18-20 throughout, PEEP 7
Bronchoscopy 2/8 03:44 with small amount of purulent secretions suctioned, malacic trachea near carina
CXR 2/8 10 am: Improved retrocardiac opacity, likely subsegmental atelectasis
Weaned PEEP to 5.
ABG: 7.37/41/174 on FiO2 0.4.
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Donor CXR progression
2.7 9:24 pm 2.8 10:01 am
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Donation outcome Heart, lungs, liver and kidneys were transplanted. The
heart and lung recipients were both boys under the age
of 10. Kidneys both went to women in their 50s and
liver went to a woman in her 60s.
Antibiotics were given to recipients based on donor
culture data provided to the transplant teams.
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Donor-derived disease
transmission Infectious disease
Malignancy
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• Viruses: Adenovirus (2), Hepatitis B virus (13), Hepatitis C virus (25), herpes
simplex, human immunodeficiency virus (HIV, 15), human T-lyphotrophic virus
(HTLV, 3), influenza (3), LCMV, parainfluenza (PIV)-3, parvovirus B19 (3),
rabies, West Nile virus (14).
• Bacteria: Acinetobacter (2), Brucella Enterococcus (including VRE), Ehrlichia
spp (2), E. coli, Gram Positive Bacteria, Klebsiella (2), legionella, listeria, Lyme
disease, nocardia, Pseudomonas (4), Rocky Mountain Spotted Fever, Serratia
(2), S. aureus (MRSA 2), Streptococcus spp, Syphilis (5) Veillonella; bacterial
meningitis and bacterial emboli.
• Fungus: Aspergillus spp (4), Candida spp (5), Coccidioides imitis (6),
Cryptococcus neoformans (5), Histoplasma capsulatum (6),zygomyces (5)
Ison et al. American Journal of Transplantation 2011; 11: 1123–1130
Donor-derived infectious diseases
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OPTN “Guidance for Recognizing Central Nervous
System Infections in Potential Deceased Organ Donors:
What to Consider During Donor Evaluation and Organ
Offers”
There should be a “High index of suspicion for
meningoencephalitis as undiagnosed ME is very risky
for recipients.
OPOs should consider the following questions when
completing screening procedures for potential organ
donors.
Transplant Programs should also be aware of these
issues when considering organ offers.”
OPTN: Guidance for Recognizing Central Nervous System Infections in Potential
Deceased Organ Donors: What to Consider During Donor Evaluation and Organ Offers,
guideline revised 2/1/2014
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Ruling out
meningoencephalitis (ME) • Donor age and cause of brain death. Children are less likely to
have strokes, infection more common in children. If cause is determined to be stroke, does the patient have comorbidities that make stroke likely or could it be ME?
Unexplained fever around presentation?
Altered mental status or seizures at presentation that could be evidence of ME?
CT, MRI, or LP evidence of infection?
Immunosuppressed host?
Environmental exposures to pathogens associated with ME? (e.g. WNV, tuberculosis, rabies)
OPTN: Guidance for Recognizing Central Nervous System Infections in Potential
Deceased Organ Donors: What to Consider During Donor Evaluation and Organ Offers,
guideline revised 2/1/2014
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Reports of success with bacterially
infected donors
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Meningoencephalitis and
Organ Donation…back to the poll
Bacterial meningoencephalitis not a contraindication
assuming that organism is identified as a susceptible
organism, treated appropriately, and CSF and blood (if
infected) sterilized. Recipients are treated with
antibiotics as well.
Viral meningoencephalitis (or strong suspicion of ME
with no cause identified) is a contraindication to
transplant, because it is more difficult/ impossible to
treat in the donor and the recipient and challenging to
prove the efficacy of the treatment.
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Discussion? Questions? Thank you.