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Microsoft word - malaria-prophylaxis-new proposal.rtf

MALARIA PREVENTION AND PROPHYLAXIS
By
Frans J Cronjé, MBChB(Pret), BSc(Hons) Aerosp Med
Albie De Frey, MBChB(Pret)
Hermie C Britz, MBChB(Pret), BSc(Hons) Aerosp Med
DAN receives many inquiries from members regarding malaria. Indeed, malaria has become an increasing problem due to drug resistance. As divers venture deeper into the African tropics they incur increasing risk of contracting malaria. Lack of medical facilities, transportation and communication add additional complexity to managing this medical emergency. Three DAN members have required evacuation by air over the last three years due to malaria. Understanding malaria prophylaxis and general preventative measures is therefore of the utmost importance. The following section covers the most important considerations in selecting and using malaria prophylactic measures and medications. The treatment of malaria, which is complex and requires close medical supervision, falls outside the scope of this document. If you think that you may have malaria or are concerned about unexplained symptoms after visiting a malaria area, contact DAN immediately on 0800 020111 or +27(0)11 254 -1112. The Three Commandments of malaria prevention and survival are: Seek Immediate Medical Attention If You Suspect Malaria Take “The Pill” (Anti-Malaria Tablets / Prophylaxis)
(1) DO NOT GET BITTEN

If you have to be outside between dusk and dawn – cover up : Long sleeves, trousers, socks, shoes (90% of mosquito bites occur below the knee) Apply DEET containing insect-repellent to all exposed areas of skin, repeat four-hourly Air-conditioned, and / or proper mosquito gauze Buildings / tents, regularly treated with pyrethrum-based insect repellent / insecticide Sleep under an insecticide impregnated (Permacote® / Peripel®) mosquito net (Very effective)
(2) SEEK IMMEDIATE MEDICAL ATTENTION IF YOU SUSPECT MALARIA

Any flu-like illness starting 7 days or more after entering a malaria endemic area is malaria until proven otherwise. The diagnosis is made on a Blood smear or with an ICT / rapid malaria finger prick test, One negative smear / ICT does NOT exclude the diagnosis : o Repeat the smear / ICT until the diagnosis is made, another illness is conclusively diagnosed or spontaneous recovery occurs – e.g. from ordinary influenza…)
(3) TAKE “THE PILL

There are several dangerous myths regarding malaria prophylaxis. Please note that:
not make the diagnosis more difficult does protect against the development of cerebral malaria not 100% effective - hence the importance of avoiding bites Not all anti-malaria medication is safe with diving Malaria is often fatal – making prophylaxis justified Anti-malaria drugs, like all drugs, have potential side-effects, but the majority of side-effects decrease with time. Serious side-effects are rare and can be avoided by careful selection of a tablet or combination of tablets to suit your requirements (Country, region and season). THE FOLLOWING DRUGS ARE AVAILABLE FOR THE PREVENTION OF MALARIA: (1) Doxycycline (Vibramycin® or Cyclidox® or Doryx®, etc.): Used extensively in the prevention of chloroquine resistant malaria. About 99% effective. Not officially recommended for use in excess of 8 weeks for malaria prevention, but it has been used for as long as three years with no reported adverse effects. Offers simultaneous protection against tick-bite fever. - Dosage: 100mg daily after a meal starting 1 - 2 days before exposure until 4 weeks after Doxycycline should be taken with plenty of non-alcoholic liquid. effects: Nausea, vomiting, diarrhoea, allergy, photosensitisation. May cause vaginal thrush and may reduce the efficacy of oral contraceptives. Use in Pregnancy: Unsafe (as is SCUBA DIVING). Also avoid during breast feeding and in children < 8 years old.

Doxycycline is DAN Southern Africa’s agent of choice for divers diving in areas with
chloroquine resistance / “resistant malaria”.

(2) Chloroquine (Nivaquine® or Daramal® or Plasmaquine®):
chloroquine. Must be taken in combination with Proguanil (Paludrine®) - Dosage: 2 tabs weekly starting one week before exposure until 4 weeks after leaving the - Contra-indications : Known allergy, epilepsy - Side effects: Headache, nausea & vomiting, diarrhoea, rashes; may cause photosensitivity (sunburn; prevention – apply sun block) Use in Pregnancy: Safe. (Note: SCUBA diving is not considered safe during pregnancy) (3) Proguanil (Paludrine®): Must be taken in combination with Chloroquine (Nivaquine® or Daramal® or Plasmaquine®) - Dosage: 2 Tablets every day starting one week prior to exposure until 4 weeks after. - Contra-indications: Known allergy to Proguanil. Interactions with Warfarin (An anti- coagulant / blood thinning agent -- that is incompatible with diving) - Side-effects: Heartburn (Tip: Take after a meal, with a glass of water & do not lie down shortly after taking Proguanil); mouth ulcers (Tip: Take Folic acid tablets 5mg per day if this occurs); loose stools (self limiting – no treatment required) Use in Pregnancy: Safe - but must be taken with Folic acid supplement: 5mg per day. (Note: SCUBA diving is not considered safe during pregnancy) The combination of Chloroquine & Proguanil is about 65% effective for resistant falciparum malaria. Although not a first choice, its relative safety and limited side-effects may justify its use in certain individuals. (4) Atovaquone / Proguanil (Malarone ® ; Malanil ®) Registered in South African as a causal prophylaxis in February 2004. Safety in diving has not been established. Preliminary data suggests it may be safe for pilot and divers. Effective against Malaria isolates that are resistant to other drugs. Controlled studies have shown a 98% overall efficacy of Atovaquone / Proguanil in the prevention of P. falciparum malaria - Dosage: 1 Tablet daily for adults, starting 24 – 48 hours prior to arrival in endemic area, during exposure in endemic areas and for 7 days after leaving the endemic area only. Dose should be taken at the same time each day with food or a milky drink. - Contra-indications: Known allergy to Proguanil or Atovaquone or renal impairment (i.e., significant renal disease is likely to be incompatible with diving). Safety in children < 11kg has not been established. - Side-effects: Heartburn (Tip: Take after a meal, with a glass of water & do not lie down shortly after taking Proguanil); mouth ulcers. To date Atovaquone has been well tolerated and the most common adverse reaction being headache. Use in Pregnancy: Safety in pregnancy and lactating women has not been established. (Note: SCUBA diving is not considered safe during pregnancy)
The safety of Malanil has not been confirmed in diving. Accordingly, even though
preliminary data suggests that it may be safe, we are not able to recommend it.
Doxycycline remains the first choice for divers diving in Africa where there is resistance to
chloroquine.

(5) Mefloquine (Lariam® or Mefliam®) effects: May cause drowsiness, vertigo, joint aches and interfere with fine motor co- ordination (Making it difficult to exclude DCI in some cases). Use in Pregnancy: Probably safe in early pregnancy and may be used with confidence after the first trimester of pregnancy. May be used in breast feeding and babies weighing more than 5kg.
Mefloquine is considered unsafe for divers & pilots. It is contra-indicated in epilepsy but is
a good first choice for other travellers.

(6) Pyrimethamine / Dapsone (Maloprim® or Deltaprim® / Malazone®):
(7) Sulfadoxine & Pyrimethamine. (Fansidar®): (8) Quinine (Lennon-Quinine Sulphate®): Not used for prophylaxis but is the backbone in the treatment of moderate and severe malaria. Serious side-effects are not uncommon during treatment. The “Chinese drug”. Available in some areas of Africa. Not for prophylaxis. Used in combination with other drugs in the treatment of mild to moderate malaria. Not used for prophylaxis and best avoided for treatment. RECOMMENDED MALARIA DRUG PROPHYLAXIS IN DAN SOUTHERN AFRICA REGION (AFRICA & INDIAN OCEAN ISLANDS) AREA Low risk persons: *Nothing –see below. Malanil® Chloroquine & Proguanil Nothing Malanil® Chloroquine & Proguanil Nothing Only benign forms of malaria Chloroquine in northern areas in the north * In situations where the risk of contracting malaria is low, ( e.g. in cities, air conditioned hotel or when rainfall has been low, etc.) the traveller may be advised to take no drug prophylaxis but standby treatment must be carried unless medical care is readily available. PERSONAL PROTECTION AGAINST BITES MUST BE ADHERED TO AT ALL TIMES. # High risk people include babies & children under 5 years, pregnant women, elderly people (> 65 years), people with suppressed immunity (e.g. diabetics, etc.) NOTE: (1) Prophylaxis significantly reduces the incidence of malaria and slows the onset of serious (2) All anti-malaria drugs excluding Mefloquine are considered compatible with diving. Safety of Malanil® Atovaquone / Proguanil) has not been confirmed in diving, but is presumed to be safe for pilots. (3) Like with all other medication, anti-malaria drugs should be tried and tested on land well (4) If unpleasant side-effects occur, please consult your doctor or DAN: (011) 242-0112 or 0800 020111 or WORLDWIDE TRAVEL MEDICAL CONSULTANTS: (011) 214 9030 (5) Whether or not you take prophylaxis, be paranoid about malarial symptoms. Malaria can present in many ways varying from fever, diarrhoea to flu-like symptoms. Always inform your doctor that you have been in a malaria area. Symptoms can start within 7-14 days from first exposure until 30 days (and rarely even months) after leaving a malaria area. (6) No single medication is 100% effective and barrier mechanisms / personal protection against bites (e.g. mosquito repellents, nets, protective clothing, not going outdoors from (7) Any strange symptom occurring during or within 6 weeks of leaving a malaria area should be regarded with suspicion and requires medical attention. The above mentioned recommendations were compiled from material supplied by the National Department of Health and WORLDWIDE TRAVEL MEDICAL CONSULTANTS.

Source: http://www.barraresorts.com/userfiles/file/malaria_dansa/malaria_prophylaxis_new_proposal.pdf

Cv.handjani.08[1].doc

CURRICULUM VITAE FARHAD HANDJANI, M.D. ADDRESS: P.O.Box 71345-1558 Shiraz, Iran Tel.: +98-711-2254360(Home) +98-711-2319049 (Work) Fax: +98-711-2307594 (Work) +98-711-2319049 (Work) Mobile: +98-917-111-2150 E.mail: PERSONAL DATA: Date of Birth: August 15,1963 Place of Birth: Shiraz, Iran Marital Status: Married Number of Children: One Health Condition: Good EDUCATION:

Microsoft word - pedersen-acl2005-corrected.doc

University of Minnesota Digital Technology Center, May 2005 Measures of Semantic Similarity and Relatedness in the Medical Domain Ted Pedersen1 Serguei Pakhomov2 Siddharth Patwardhan3 1 Department of Computer Science, University of Minnesota, Duluth, MN 2 Division of Biomedical Informatics, Mayo Clinic, Rochester, MN 3 School of Computing, University of Utah, Salt Lake City, UT and there

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