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Jakarta, 28 Dec 2009
Volume Replacement in DHF
Volume Replacement in DHF
The major pathophysiologic hallmarks that distinguish DHF from DEN and other diseases are abnormal haemostasis and increased vascular permeability that leads to leakage of plasma. The clinical features of DHF are rather stereotyped, with acute onset of high (continuous fever) haemorrhagic diathesis (most frequently on skin), hepatomegaly, and circulatory disturbance (in most severe form as shock - dengue shock syndrome). It is thus possible to make an early and yet accurate clinical diagnosis of DHF before the critical stage, or shock, occurs, by using the pattern of clinical presentations together with thrombocytopenia and concurrent haemoconcentration, which represent abnormal haemostasis and plasma leakage respectively. The management of DHF is entirely symptomatic and supportive and is directed towards replacement of plasma losses for the period of 24-48 hours. Survival depends on early clinical recognition and frequent monitoring of patients for pathophysiologic changes. Early volume replacement when haematocrit rises can significantly prevent shock and/or modify disease severity (1).
Studies reveal a reduction in plasma volume of more than 20% in severe cases. The evidence that supports the existence of plasma leakage includes findings of pleural effusion and ascites by examination or radiography, haemoconcentration, hypoproteinaemia and serous effusion (at post mortem) (2).
In shock cases, satisfactory results have been obtained with the following regimen (1) :
a) Immediately and rapidly replace plasma losses with isotonic salt solution and plasma or plasma expander (in cases of profound shock).
b) Continue to replace further plasma losses to maintain effective circulation for the period of 24-48 hours. c) Correct metabolic and electrolyte disturbance (metabolic acidosis, hyponatremia, hypoglycemia or hypocalcemia).
d) Give blood transfusion in cases of significant bleeding.
Therefore, we conducting table regarding guidelines or studies stated volume replacement in DHF, as below:
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No
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Statement
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Author/Publication
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1
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Monitor treatment and recovery IV resuscitation therapy (3) :
Acetated Ringer’s or 5% glucose (I PSS) at a rate of 10-20 ml/kg of body weight per hour (or as fast as possible).
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If shock persists after 20-30 ml/kg of body weight add a plasma expander at the rate of 10-20 ml/kg per hour.
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If shock persist significant internal bleeding should be suspected Continuation of intravenous therapy should be adjusted according to hematocrit and the rate should be reduced to 10 ml/kg per hour.
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In general there is no need to continue the therapy beyond 48 hours.
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GUIDELINES
Clinical and Laboratory Guidelines for Dengue Fever and Dengue Haemorrhagic
Fever/Dengue Shock Syndrome for Health Care Providers
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2
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Type of fluid in volume replacement in DHF (4) :
Crystalloid:
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5% dextrose in lactated Ringer’s solution (5% D/RL)
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5% dextrose in Acetated Ringer’s solution (5% D/RA)
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5% dextrose in half strength normal saline solution (5% D/1/2/NSS)
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5% dextrose in normal saline solution (5% D/NSS)
Colloidal:
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Prevention and Control of Dengue and DHF: Comprehensive Guidelines; WHO, Regional Publication, SEARO, no. 29; New Delhi;
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3
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Because patients have loss of plasma (through increased vascular permeability into the serous spaces) they must be given isotonic solutions and plasma expanders, such as Acetated Ringer’s or lactated ringer's, plasma protein fraction, and Dextran 40 (5) .
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P Amin*, Sweety Bhandare**, Ajay Srivastava***
*Consultant BHIMS, **Resident, Cook Country Hosp. Chicago. ***Resident, Bombay Hosp. Mumbai
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4
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In the critical stage, immediate volume replacement with isotonic solution such as normal saline (NSS), 5% D/NSS, lactated ringer's solution (RLS) or Acetated Ringer’s Solution (ARS), at a rate of 10-20 ml/kg/h in 1-2 hours, should be administered until circulation improves and an adequate urinary output is obtained (6).
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Faculty of Tropical Medicine, Mahidol University. All rights reserved. Webmaster : tmwww@mahidol.ac.th
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5
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The result of studies from various places (Bangkok, Thailand, 2000) on the use of corticosteroid in treating DSS showed no benefit either in the fatality rate or any reduction in the volume of fluid therapy or duration of therapy. Solution for volume replacement: 5% D in NSS, 5% D in 1/2 NSS, Lactated Ringer's or Acetated Ringer’s, Plasma expander, Dextran 40 (7) .
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WHO/SEARO Home © WHO Regional Office for South-East Asia 2009 All rights reserved
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6
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Acetated Ringer's Solution is often used for fluid resuscitation after a blood loss due to trauma, surgery, or a burn injury, as well as hypovolemic shock due to severe dehydration and dengue hemorrhagic fever. It is used because the byproducts of acetated ringer's metabolism counteract acidosis, a chemical imbalance that occurs with acute fluid loss, such as occurring in diarrhoea. The metabolism of acetated ringer's is mainly in muscle and 2.5 to 4 times faster than lactated ringer's (see lactated Ringer's solution) (8) .
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www.medic8.com
© Medic8 ® All Rights Reserved.
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7
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Acetated Ringer’s solution is a slightly hypotonic infusion fluid (osmolality 270 mosmol/kg) that has inspired the belief that the fluid causes a shift of water volume to the intracellular space. In conclusion, infusion of Acetated Ringer’s solution does not promote cellular swelling as a result of the excretion of urine that is low in sodium. A slight dehydration of fluid from the intracellular space still persisted when our measurements ended 2 h after completing the infusion (9) .
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Rapid Water and Slow Sodium Excretion of Acetated Ringer’s Solution Dehydrates Cells;
Robert G. Hahn, MD PhD, and Dan Drobin, MD PhD
Söder Hospital, S-118 83 Stockholm, Sweden
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8
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Acetated Ringer’s ** is another isotonic solution often used for replacement therapy (10) .
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http://en.wikipedia.org/wiki/Intravenous/acetate
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** Asering® is branded name of acetated ringer’s marketed in Indonesia by PT. Otsuka
References:
- Dengue/DHF Management of Dengue Epidemic (SEA/DEN/1): Medical and Laboratory Services and Standard Case Management of Den/Dhf/Dss During Epidemics; http://www.searo.who.int/en/Section10/Section332/Section366_1210.htm
- http://www.who.int/csr/resources/publications/dengue/024-33.pdf
- http://www.bvsde.paho.org/bvsacd/cd56/denguide-lab.pdf
- Prevention and Control of Dengue and DHF: Comprehensive Guidelines; WHO, Regional Publication, SEARO, no. 29; New Delhi
- http://www.bhj.org/journal/2001_4303_july01/review_380.htm
- http://www.tm.mahidol.ac.th/eng/tmpd/tmpd_knowledge_dengue.htm
- WHO/SEARO Home © WHO Regional Office for South-East Asia 2009 All rights reserved
- www.medic8.com © Medic8 ® All Rights Reserved.
- Rapid Water and Slow Sodium Excretion of Acetated Ringer’s Solution Dehydrates Cells; Robert G. Hahn, MD PhD, and Dan Drobin, MD PhD; Söder Hospital, S-118 83 Stockholm, Sweden
- http://en.wikipedia.org/wiki/Intravenous/acetate
Budhi Santoso, MD
Sr. Medical Advisor
budhi@ho.otsuka.co.id
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