2. What is the Mission?
âPeacekeeping
âConventional Combat Operations
âSpecial Operations
ââNation Buildingâ- âMedCapsâ
3. Who will be the Patients?
âUS Military Personnel
âMulti-National Force - Peacekeepers
âIndigenious Populations
âRefugees
4. Who is the Boss?
âUS Line
âUS Medical
âMulti-national Commanders
5. What resources & WHO controls
them?
âTents vs Fixed Installations
âLocal Medical Resources
âEvacuation Routes and Methods
âSupply and Logisitics
6. What is the Tactical Situation?
âSecurity of facility- Paramount Concern
âWill you need to re-deployment?
âDo you need to augment defense?
âElectronic security/ECM
âEscape and Evasion Plan
7. What is the âThreatâ
âEndemic Diseases
âEpidemic Diseases
âVeneral Disease
âCBR Threat?
âPractical Traumatology
8. Resources - An Example From
Zagreb
âMedline Search - Croatia, Serbia
Keywords
âAFMIC BBS - Disease and threat files for
ALL 35 Nations assigned to Croatia
Command
âCIA Factbook Via Internet Croatia,
Serbia, Macadonia
âCroatia Usenet Group
9. Computers in Zagreb
âLAN WorkGroup- Combat Trauma Life Support
âE-mail via LAN Mailserver
âClinical & NETWORK News
âCD-ROM References
âModem Slide File for Presentation
âER DataBase Access via Telnet Zagreb-Texas
10. Computers in Zagreb
âListserver Continuing Medical Education
âClinical Discharge Summaries
âCommunication in High Ambient Noise
Environment
âEmail exchange of Critical Data/Consulations
âACLS/ATLS Simulators
11. Case #1
â3 wk hx/o progressively decreased visual
acuity OS
âIntense puritius X 2 months
âNative Kenya from RURAL region near
running water
âIn Croatia X 9 moâs
15. Onchcerciasis- Pathology
âAdult worms reside in subcutaneous
tissues
âOften enclosed in fibrous nodules
âMicrofilariae, which in this species lack
an enveloping sheath
âReleased from female adults
âLocalize in skin & subcutaneous tissues
16. Clinical Features I
âSkin is frequently involved
âPruritus most common clinical
manifestation
âWrinkling and skin atrophy
17. Clinical Features II
âHypopigmentation or hyperpigmentation
âPapulovesicular lesions & localized
areas of eczematoid dermatitis
âFirm, nontender subcutaneous nodules
(over boney prominences)
18. Clinical Findings III
âBlindness most feared complication
â1.5K per 100K (endemic region) vs .25K
per 100K (base risk)
âSome areas 10% adult population blinded
âConjunctivitis with photophobia
âCommon and earliest finding
19. Clinical Findings IV
âPunctate keratitis (10-15%)
(accumulation of inflammatory cells
around dying microfilariae) usually no
sequlae
âSclerosing keratitis (5%) and
chorioretinal lesions (5%) cause
blindness
âAnterior uveitis, iridocyclitis (5%) & less
frequently, optic nerve lesions (2%)
21. Laboratory Diagnosis I
âSmall piece superficial skin by excision
or punch biopsy weighed
âIncubated several hours in saline or
tissue culture media
âMicrofilariae exit skin & counted in fluid
âďż˝100 microfilariae/mg skin = heavy
infection
22. Laboratory Diagnosis II
â50 mg provocative dose
diethylcarbamazine
âSubsequent onset of symptoms, pruritus,
rash, fever, and conjunctivitis= Mazzotti
reaction
âEosinophilia often prominent
32. Malaria- USA
âMalaria acquired by mosquito incrsing
â14 cases occurred USA 1950-1985
âEpidemiologic surveys California - 27
cases in 1987
â30 cases in 1988
âEight cases in 1989
âAll caused by P. vivax
33. Malaria - Life Cycle
âIncubation Period 12 to 14 days
âSporozoites enter via bite of infected
female anopheline mosquito
âParasites carried to the liver, where they
multiply inside parenchymal cells
âPreerythrocytic tissue phase
34. Malaria - Life Cycle
âProgeny released from ruptured
hepatocytes => RBCâs
âInside RBC
âProgency degrade protein fraction of
hemoglobin
35. Malaria - Life Cycle
âUndergo asexual maturation from
trophozoite to merozoite
âProcess known as schizogony
âCycles of intracorpuscular multiplication,
rupture, and reinvasion responsible for
paroxysms of chills & fever
36. Malaria - Life Cycle
âSome parasites differentiate into
macrogametocytes or
microgametocytes, the sexual forms
âThese infect mosquitoes that feed on the
victim
37. Malaria - Life Cycle
âIn the gut of the mosquito, the definitive
host
âfertilization
âzygote formation
âproduction of new sporozoites take place
39. Clinical Features
âTemperature to 41.5° C (106.7° F)
âProfuse sweating & Prostration may
appear
âMild jaundice, hepatosplenomegaly, and
anemia often develop
40. Fever Patterns
âP. vivax & P. ovale infections cause QOD
(tertian) febrile paroxysms
âAfter maturation cycles synchronize
âUsually at end of first week
âP. malariae infection marked by
paroxysms Q3D (quartan periodicity)
41. P. falciparum
âHas capacity to obstruct microcirculation
in various organs
âFever continuous or intermittent
âCerebral involvement may lead to
delirium, focal disorders (e.g., seizures),
& coma
42. P. falciparum
âSplanchnic involvement may cause
protracted nausea, vomiting, diarrhea,
melena, & abdominal pain
âGI syndrome can be mistaken as
traveler's diarrhea
âSince there may be little or no fever
43. P. falciparum
âLung involvement may cause pneumonia
& ARDS
âHypoglycemia may be severe
âRare syndrome of blackwater fever
âMassive intravascular hemolysis
â=> hemoglobinuria and ARF
44. P. malariae
âCan persist as an asymptomatic infection
for years or decades
âUsually responsible for late relapses
âThis species likely to be cause of malaria
induced by transfusion
45. Laboratory Diagnosis
âParasites in properly stained smears
peripheral blood
âSmears taken repeatedly for several
days because cyclic nature parasitemia
âMorphologic features of parasites (and
the infected host erythrocytes) useful in
species ID
46. Laboratory Diagnosis
âIndirect fluorescent antibody test- CDC
âBlood smear used to establish a Dx
âSerologic test useful in ID infected
donors in cases of transfusion malaria
âDNA probe being developed Dx P.
falciparum infection
47. Drug Resistance
âChloroquine-resistant strains in all
countries with P. falciparum malaria
except
âHaiti & the Dominican Republic
âCentral America west of the Panama Canal
âMiddle East & Egypt
49. Drug Resistance
âResistance to
pyrimethamine-sulfadoxine (Fansidar)
widespread
âThailand, Burma, Cambodia, and the
Amazon River basin
âHas been reported in sub-Saharan Africa
âMefloquine-resistant strains- P.
falciparum identified Thailand
50. PO Treatment
â1,250 mg of mefloquine in a single dose
âMefloquine is a schizonticidal agent
structurally related to quinine
âPrimaquine 15mg po qd X 2wks
âIf G-6-PD deficient than 45 mg po 1X/wk
X 8wks
52. IV Therapy-Regimen
âLife-threatening P. falciparum malaria
âIntravenous quinidine gluconate
âLoading dose 10 mg/kg (maximum 600 mg)
NS infused over 1 to 2 hrs
âThen continuous infusion of 0.02 mg/kg/min
53. IV Therapy-Cautions
âSlow infusion rate
âPlasma quinidine levels > 6 mg/ml
âQT interval greater than 0.6 second
âQRS widening beyond 25 percent of
baseline
âHypoglycemia, may be exacerbated
âParenteral therapy until parasitemia <1%
54. Transitions to PO Therapy
âIn most cases, PO Rx can be substituted
within 48 - 72 hrs
âOral therapy, usually with quinine,
continued for 3-7 dâs
âAdd additional agent (e.g., TCN 250 mg
p.o. Q6h X 7 dâs)
55. Case #3
â27 y/o CzekBat infantryman
â5 d hx/o high fever, rigors, malaise
âSevere Lumbar Pain and marked N/V
âTransfered for Renal Failure
59. History I
â1950s United Nations troops in Korea
epidemic- serious febrile illness
associated with hemorrhages, capillary
leak phenomena, and renal failure
âKorean epidemic hemorrhagic fever
60. History II
â1913 eastern Russia, various regions of
Russia and China, including Siberia and
Manchuria, Korea and Japan
â1982 and 1983 same illness reported in
various parts of France
âA milder form - nephropathia epidemica
in Scandinavia - 1935
61. Biology
âGenus Hantavirus at least 4 species
âHantaan virus (Korean hemorrhagic
fever)
âSeoul virus (milder form of Korean
hemorrhagic fever)
âPuumala virus (nephropathia
epidemica)
âProspect Hill virus (isolated meadow
voles Maryland no disease)
62. Biology
âFamily Bunyaviridae Genus Hantavirus
â3 molecules per virion
âNonmessenger ss-RNA genome
âSpherical 80-115 nm Diameter
âHelical Capsid symmetry
âLipo- and glycoprotein Envelope
63. Serology
âViremia not usuallly noted at
presentation
âIgM & IgG antibodies usually present at
clinical presentation
âImmunfluorescent antibody test available
âAntigen-antibody complexes in serum
may be cause of tubular nephropathy
characteristic of illness
64. Epidemiology I
âHantaviruses isolated rodents world-wide
â42% of Norway rats- Baltimore (1980
and 19860 (+) antibodies Hantaan virus
âIncreased number naturally acquired and
lab- associated infections in Europe
âRecent outbreak in Belgium lab rats
65. Epidemiology II
âVirus in urine, feces, and saliva various
rodents, including field and laboratory
mice, rats, and voles
âTransmission rodent to rodent respiratory
âHuman transmission inhalation infectious
aerosols rodent excreta
âNo evidence human-to-human
transmission
67. Clinical
âIncubation period is 7 to 36 days
âUsually 10 to 25 days
âSeverity of illness varies considerably
âApprox 65% of cases mild
â10 to 15% severe
68. Febrile
âOnset abrupt : chills, fever, backache,
abdominal pain, myalgia
âFever peaks- 3rd or 4th day
âRelative bradycardia
âSevere illness, confusion, meningismus,
and convulsions occur
âMortality with severe disease
approximately 40 percent
69. Febrile (dermatological
findings)
âTypical early findings diffuse reddening
of the face (sunburn)
âDermatographism > 90% of patients
âPetechiae 3rd to 5th day, initially on
palate, pressure areas (axillary folds)
âConjunctival hemorrhages
70. Hypotensive
â5th day, shock or hypotension may
occur (hypotensive phase)
âMild cases, fall in BP is only transient
âHct increases and marked proteinuria,
leukocytosis, and thrombocytopenia
develop.
71. Oliguric
âAbout 8th day
âBP returns to normal
âOliguria develops
âBUN levels increase rapidly
âHemorrhagic manifestations more
prominent
72. Diuresis
âAbout the 11th day
âCNS and pulmonary complications may
be seen
âConvalescent phase lasts 3 to 6 wk.
73. Prognosis
âMost patients survive the period of
oliguria
âTotal illness of two to three weeks'
duration
âNo specific therapy (??????)
âOverall mortality - five to 30 percent
âResidual renal dysfunction uncommon in
Korea may be more common in Europe
74. NE
âNephropathia epidemica milder illness
âSeen in Scandinavia
âSudden onset of high fever, headache,
backache, and abdominal pain
âOn 3rd or 4th day, conjunctival
hemorrhages, palatine petechiae, and a
truncal petechial rash appear
75. NE
âApprox 20% of patients develop a toxic
condition become mentally obtunded
âOliguria and azotemia develop
concomitantly with the hemorrhagic
manifestations
âUrinalysis reveals proteinuria,
hematuria, and pyuria
âRash subsides in about 3 days
âDevelops polyuria recovers weeks
76. Controlled Clinical Trial
âIn China, 242 patients who had
serologically confirmed hemorrhagic
fever with renal syndrome
âPatients who had received intravenous
ribavirin - marked reduction in mortality
âMarked reduction in the risk of oliguria
and of hemorrhage
77. Theraputic Regimen
âIntravenous ribavirin- loading dose of 33
mg/kg
âLoading dose was followed by 16 mg/kg
every six hours for four days and by 8
mg/kg every eight hours for three days
78. Case #4
â25 y/o African male
âIntermittant gross hematuria X 8 moâs
âDysuria and Increased Frequency
âInfantryman in Croatia since June 1994
â4 yrs ago treated for something similiar
79. HX
âSomali tribe of kenya (nomadic)
âGarrisa District (NorthEastern Province) of
Kenya
âTraveled widely in search of bride
âHad Swum in Tana River in past 4 yrs
approximately 15 times
80. Laboratory
âU/A (+) RBCâs, (-) WBCâs, (-) nitrites, (-)
leukocyte esterase
âU/A had single egg discovered in
multiple slides of centrifuged urine
âHowever, diagnositic specimen
âSchistosomasis hematobium
81. Introduction
âChronic trematode (fluke) infection of
humans
âMajor worldwide health problem
âThree major species Schistosoma
mansoni, S. japonicum, and S.
haematobium
82. Geographic Distribution
âS. mansoni - Africa, Arabia, South
America, and parts of the Caribbean
âS. japonicum - Japan, China, and the
Philippines
âS. haematobium - Africa and the Middle
East
âA minor species, S. mekongi - mainland
Indochina
84. Epidemiology I
âHighly endemic, 2-3 million people
âInfection rates by region as high as 60%
âRisk elevated in rainy seasons March to
May and Late September to November
85. Epidemiology II
âHaematobium coastal plain and lower
Tana River Valley
âTaveta vicinity (extreme southwestern
Coast Province)
âKitui District (Eastern Province)
âNyanza Province (bordering Lake
Victoria)
86. Epidemiology III
âIntestinal Shistosomasis less widely
distributed
âKitui and Machakos Districts (Eastern
Province)
âTaveta vicinity
âBordering Lake Victoria
âRusinga and Mfango Islands (Lake
Victoria)
89. Clinical Features I
âThree stages of disease may occur
âFirst stage, schistosomal dermatitis
âDevelops acutely within a day of
cercarial penetration of the skin
âSwimmer's itch, similar reaction in US
â26 percent of Michigan residents have
antischistosomal antibodies
90. Clinical Features II
âSecond stage of disease
âAcute schistosomiasis, or Katayama
fever
âFour to eight weeks after heavy,
primary, infection
âFever, cough, hepatosplenomegaly,
malaise, myalgias, urticaria, and
eosinophilia
91. Clinical Findings III
âStage III - Chronic schistosomiasis
âCaused by heavy deposition of eggs in
intestine or bladder and in the liver
âS. haematobium infection, principal
symptoms -terminal hematuria, dysuria,
and frequency
âHydronephrosis and pyelonephritis may
develop 2ndary fibrosis and infection
92. Non-Haematobium infection I
âS. mansoni, S. mekongi, or S.
japonicum infection
âFever, malaise, abdominal pain,
diarrhea, or hepatosplenomegaly
âPresinusoidal hepatic trapping of eggs
âGranulomatous reaction induces portal
hypertension collateral esophageal
varices
93. Non-Haematobium infection II
âEggs may be shunted from liver to lung,
with PAH
âDeath 2ndary variceal bleeding
âHepatic encephalopathy rare- hepatic
parenchyma spared
âLess common sequelae - intestinal
polyps, bladder carcinoma, persistent
Salmonella infections
94. Non-Haematobium infection III
âInfrequently, focal neurologic dysfunction
2ndary aberrant localization in CNS tissue
âEmbolic deposition of S. japonicum eggs
may produce cerebral granulomas
âS. mansoni may lead to transverse
myelitis involving the midthoracic or
lumbar spinal cord
95. Diagnosis I
âSuggested - history of possible exposure
âExposure may be years distant
âCompatable gastrointestinal or urinary
tract symptoms, hepatosplenomegaly,
eosinophilia, or combination of findings
âSerologic tests are rarely helpful
96. Diagnosis II
âDocument presence of active infection
â=> find viable eggs
âAssess intensity of infection -quantitate
egg excretion
97. Diagnosis III
âStool examination should include search
for all Schistosoma species
âS. haematobium, urine should be
obtained between 10:00 A.M. and 2:00
P.M.
âMicroscopic examination of biopsy
specimens of rectal mucosa
99. Treatment
âPraziquantel is drug of choice
âS. haematobium, single dose 40 mg/kg po
âS. japonicum, S. mansoni, and S. mekongi,
20 mg/kg po TID X 1 day
âDrug efficacious, paucity of side effects, is
convenient
100. Case #V
â45 y/o Bengladeshi Male
âFever X 4-5 wks with wasting illness
103. Etiology and Epidemiology
âL. donovani species complex includes
several species
âe.g., L. infantum, L. donovani, and L.
chagasi
âEndemic in areas of India, China, Central
and South America, East and West
Africa, and the countries surrounding the
Mediterranean
104. Etiology and Epidemiology
âSandflies of genus Phlebotomus are the
insect vectors
âIn India, no extrahuman reservoirs
known
âOther regions, several mammals,
including dogs, foxes, & wild rodents
reservoir hosts
105. Patient Specific Epidemiology
âVisceral leishmaniasis rural disease is
endemic countrywide
âKala-azar outbreak affected widespread
areas of the Seraganj District, central
Bangladesh
âLate June, 1989, at least 1,000 cases
were reported
106. Patient Specific Epidemiology
âOutbreak probably related to earlier one
adjacent Pabna District
âOther risk areas: Shrifalgati, Nandiganti,
Newargacha, Dugli and Makarkole
districts
107. Croatian Epidemiology
âFoci of visceral leishmaniasis (VL) are
distributed countrywide
âElevated risk in southeastern Serbia in
the area of Dobric
âAlong the Dalmatian Coast
âHistorically, active foci:Macedonia,
Dalmatia, the island of Mljet (Croatia),
and Montenegro
110. Clinical Features
âSymptoms gradual onset several months
after infection
âWeakness, dizziness, weight loss,
diarrhea, & constipation
âFever, almost always develops, may
spike twice daily & is sometimes
acompanied by rigors
112. Clinical Features
âThrombocytopenic pxt => gingivae,
nose, or GI tract bleeding,
âCutaneous ecchymoses and petechiae
âDeath 2ndary bacterial infections, severe
anemia, or uncontrolled bleeding
113. Laboratory Findings
âAnemia, leukopenia, thrombocytopenia
âHyperglobulinemia &hypoalbuminemia
â(+) fever, hepatosplenomegaly, and
exposure endemic areas
âDefinitive diagnosis organism in host
tissues cultured Novy-MacNeal-Nicolle
(NNN) medium
114. Laboratory Findings
âLeishman-Donovan bodies (amastigotes)
stained tissue samples
âDx established by bone marrow
aspirates
âSplenic aspirates have highest yields -
risky
âLiver biopsy or aspiration lymph nodes
also diagnostic
115. Therapy
âSodium stibogluconate (pentavalent
antimony) Rx of choice
âPentostam - CDC Drug Service/Atlanta
(404-639-3670, days; 404-639-2888, nights
and weekends)
âIf initial Rx fails, amphotericin B or
pentamidine used
116. Therapy
âAmphotericin B uniformly effective in
Indian comparative series
âMay respond sodium stibogluconate +
recombinant human interferon gamma
âOr liposomal amphotericin B or
ketoconazole
117. Meissner 6 Wâs- ID Hx/o
âWHERE & WHEN? (travel history)
âYou did WHAT WITH WHO, WHERE ?!!!!!!!!
(sexual history)
âWACKY WAYS to WASTE time?
(avocational/occupational history)
âWEIRD and non-WEIRD WILDLIFE?
(Zoonoses)
âWolfing WHAT? (food and ingestion history)
âWEAK-knead WIMP
118. Case #6
â45 y/o Polish Internist
âChest pain
âIncreasingly disruptive behavior in his
unit
âObtained EKG on all patients that he
saw
âDisrupted sleep & Grandiose Thought
122. Definition of Mission
âClear vs ambigous or shifting
âPassive vs active
âGlamorous vs unglamorous
âClear signs of progress vs no clear
progress
123. Living Conditions
âComfortable vs spartan
âSleep discipline
âPosition improvement projects
âProgramed improvments in facilities
âUniversal vs unequal hardship
âEqualize conditions if possible
ââGrippingâ is adaptive
âMaintain fairness
124. Degree of Contact
Home, Family, Culture
âTelephone availability
âTelephone limitations
âUnauthorized casualty reporting
âMail turn around time
âComfort items
âVistors from HOME!
126. Heaven & Hell!
âHeaven: The British are the policemen,
the French are the Chefs, the Italians
are the lovers, the Germans are the
mechanics, the Swiss run the railroads.
âHell: The Germans are the policemen,
the Swiss are the lovers, the Italians run
the railroads, the French are the
mechanics, and the British are the
Chefs!
128. Immunize against culture
shock
âTRY TO UNDERSTAND customs,
habits, ways of thinking
âRespect those customs and habits
âIf unable to respect, SUPRESS
disapproval
âAdopt foreign manners and habits
129. Immunize against culture
shock
âSuppress your personal peculiarities
âMIND YOUR OWN BUSINESS
âBe Friendly
âAccept people as they are!
âTry to see the situation from their side!
130. Suffering, Horror, and/or
Death of Others
âDiscuss risks before and during
deployment
âLook at pictures and videotapes of
previous atrocities to acclimate
âWORK through your feelings: emotional
debriefing
131. Personal Injury and Death
âMines
âSnipers
âAmbush
âHarrassing arterillary or rocket attacks
âFrustrating Rules of Engagement
132. UNMO Stresses
âTwo man teams - different cultures
âPassive role in the face of atrocities
(Report the news, donât make it!!)
âStringent limits on use of deadly force
âLiving in the moral âbattlefieldâ
âThe Warrior ° The Healer