Miscellaneous Flashcards
Encephalitis Seizures
Neurocysticercosis is the most common preventable cause of epilepsy
Misc Social innovation
Community-engaged process that sees the wisdom of communities and impacts social and health outcomes eg pay-it-forward
STI Screening What
Importance of condition, high prevalence
STI Screening Why
Curable, treatable, preventable, effective
STI Screening How
Tests avaiable, sens/spec, simple, feasible, cost effective
STI Screening Who
Acceptability
STI Screening When
Accessibility
STI Screening Where
At high risk of infection or complications
STI Screening Pregnancy
CT/NG, TV, TP, HIV, HBV
STI POCT Environment
Power supply, Space, Security, Temperature/humidity
STI POCT Devlice limintations
Analytic capacity, maintenance, reliance on technology
STI POCT Provider buy-in
Impact on workload/services, staffing
STI POCT Patients
Competing priorities - willingness to wait for results (?true POCT)
STI Incidence 2020
TP 7.1m GC 82m CT 129m TV 156m
STI Prevalence 2020
HBV 296m HPV 300m HSV 490m
STI High frequency transmitters
Sex workers, others with high numbers of sexual partners
STI Bridging population
male clients of female sex workers (this becomes less relevant if general population has high background risk)
STI Partner notification
Little evidence of effectiveness in LMIC and potential harm (violence, abuse)
STI Male circumcision
60% reduction in HIV incidence, 25-45 reduction in GUD, HSV, TV, HPV, little effect GC/CT from voluntary medical male circumcision (VMMC)
STI Management
Syndromic mx recommended where diagnostic tests arent available - urethral/cervical discharge, vaginal discharge, genital ulcer
STI Urethritis cause
GC, CT, TV, MG
STI Urethritis/cervicitis treatment
GC CRO+Azith, CT Doxy or Azith, TV Metro, MG Azith
STI Vaginal discharge cause
TV, Calb, BV, CT, GC
STI Vaginal discharge treatment
TV Metro, Calb Clotri pessary, BV Metro
STI Genital ulcer cause
HSV, TP, Hducreyi (Chancroid), K granulomatis (Donavanosis), CT LGV
STI Genital ulcer treatment
HIV aciclovir, TP Benzathine pen, Hducreyi Azith, Kgranu Azith, CT LGV Azith or Doxy - treatment of GC/CT has wiped out Hd & Kg
STI WHO screening recommendation
HIV and Syphilis should both be tested
Snakebite Annual mortality
> 130,000
Snakebite Annual morbidity
400,000 (physical or psychological)
Snakebite Recognised as NTD
2016
Snakebite Epidemiology
Depends on human-snake interaction (agriculture, building projects, travel, sleeping on ground, intentional handling, nocturnal hunting, mating season), weather, and children
Snakebite Viperidae
Viper, adder, moccasins, rattlesnakes > short thick body, distinctive dorsal pattern, long fully erectable fangs which penetrate deep into tissues > shock, coagulopathy etc
Snakebite Elapidae
Cobra, krait, mambas, all Oceanian/Aus, and sea snakes > long thin body and tail, uniformly coloured, fast, short permanently erect front fangs > descending flaccid paralysis, bilateral ptosis -> bulbar (+coagulopathy etc)
Snakebite Snake venom
Complex - 100 protein/polypeptide toxins including phospholipases, metalloproteases, serine proteases, three-finger toxins (neuro- cyto-toxins) which clip over acetylcholine receptor > paralysis
Snakebite Clinical effects
Cytotoxicity (swelling, bruising, necrosis)l Haemo (coagulopathy), Neuro (descending flaccid paralysis), Cardio (arrhythmia, myocardial damage, leak, shock, orthostatic hypotension), Myo (rhabdo, hyperkalaemia), Nephro (AKI)
Snakebite Clotting 20min test
Clean dry glass vessel, tip once, positive (no clotting), negative (clotting)
Snakebite Prevention
Education, Protect feet, legs and hands, use light and prodding stick, sleep off the ground
Snakebite First aid
Remove from danger, reassure, immobilise, remove any potential tourniquets, pressure-pad-immobilisation, transport rapidly in recovery position and admit for 24h
Snakebite Pressure pad immobilisation
compress veins and lymphatics in immediate vicinity of bite
Snakebite Antivenom
Refined IgG from hyperimmune horse/sheep plasma, scare and expensive to produce, only neutralises venom used in manufacture - cover medically-most-important snakes in geographical region
Snakebite Antivenom indications
Shock, Systemic envenoming - incoagulable blood, neutrotoxicity (ptosis), black urine, rapidly progressive local swelling (bites over digits)
Snakebite Antivenom administration
Check species covered, infuse IV 10-60min, same dose for adults & children, prophylactic adrenaline SC may reduce reactions