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Take Good Care to Prevent Dengue

Updated at: Aug 07, 2018
Communicable Diseases
Written by: Dr Ali Shah FurniturewallaPublished at: Aug 07, 2018
Take Good Care to Prevent Dengue

Dengue and dengue hemorrhagic fevers (DHF) are acute febrile diseases which occur in the tropics. Know how to prevent yourself from it.

Dengue and dengue hemorrhagic fevers (DHF) are acute febrile diseases which occur in the tropics can be life-threatening. It is also known as break-bone fever, since it can be extremely painful.

 

taking care to stay away from dengue

Fever of sudden onset associated with headache, muscle and joint pains (myalgias and arthralgias, severe pain that gives it the nickname break-bone fever or bone crusher disease), distinctive retro-orbital pain and rash.The classic dengue rash is a generalized maculopapular rash with islands of sparing. A hemorrhagic rash of characteristically bright red pinpoint spots, known as petechiae can occur later during the illness and is associated with thrombocytopenia. It usually appears first on the lower limbs and the chest; in some patients, it spreads to cover most of the body. There may also be severe retro-orbital pain, (a pain from behind the eyes that is distinctive to Dengue infections), and gastritis with some combination of associated abdominal pain, nausea, vomiting coffee-grounds-like congealed blood, or diarrhea.

 

DHF - Dengue Hemorrhagic fever

Cases of DHF show higher fever, variable hemorrhagic phenomena including bleeding from the eyes, nose, mouth and ear into the gutand oozing blood from skin pores, thrombocytopenia, and hem concentration.

 

Dengue hemorrhagic fever is a leading cause of serious illness and death among children. There is no specific treatment for dengue, but appropriate medical care frequently saves the lives of patients with the more serious dengue hemorrhagic fever.

 

When Dengue infections proceed to DHF symptoms, DHF causes vascular leak syndrome which includes fluid in the blood vessels leaking through the skin and into spaces around the lungs and belly. This fluid loss and severe bleeding can cause blood pressure to fall, then Dengue Shock Syndrome (DSS) sets in, which has a high mortality rate.


 

DSS - DENGUE SHOCK SYNDROME


Dengue shock syndrome is defined as dengue hemorrhagic fever plus:

  • Weak rapid pulse
  • Narrow pulse pressure (less than 20 mm Hg)
  • Cold, clammy skin and restlessness.

 

DIAGNOSIS

 

The diagnosis of dengue is usually made clinically

"The classic picture is high fever with no localizing source of infection, a rash with thrombocytopenia and relative leucopenia - low plateletand white blood cell count" A platelet transfusion may be indicated if the platelet level drops significantly (below 20,000) or if there is significant bleeding. The presence of melena may indicate internal gastrointestinal bleeding requiring platelet and/or red blood cell transfusion.

 

 

PREVENTION

Dengue fever is caused by Dengue virus a mosquito-borne flavivirus thus the only method of controlling or preventing the spread of dengue virus transmission is to combat the vector mosquitoes by maintenance of sanitary condition, hygiene, avoiding stagnant water, using mosquito repellents or mosquito nets.


Read more articles on Dengue

 

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