Infectious

Control of Diarrheal DiseasesCDD

Assistant ProfessorDr. Batool Ali Ghalib YassinDepartment of Family & Community MedicineCollege of Medicine – University of Baghdad2014 - 2015 *

Objectives

By the end of this lecture you will be able to: Define and classify diarrhea Identify the level of dehydration according to the CDD program adopted by WHO Follow the guidelines of managing a child with diarrhea
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Control of Diarrhoeal diseases (CDD)

Diarrhoea: Passage of liquid or watery stool for at least 3 times during 24 hours. Consistency is more important than frequency.
Breast fed infants usually pass semi-solid, pasty and yellow stools. Sometimes, they pass stool after each breast feed. This is not diarrhoea.
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Control of Diarrhoeal diseases (CDD)

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Control of Diarrhoeal diseases (CDD)

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* Causative Agents; Viruses, Bacteria & Protozoa

Control of Diarrhoeal Diseases (CDD)

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Dehydration

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Clinical type of diarrhea

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* Assessment of Diarrhoea cases for dehydration

Classification
Sign
C
B
A
Lethargic, Unconscious
Restless, Irritable
Well, Alert
General Condition
Sunken* Absent Very Dry
Sunken * Absent Dry
Normal Normal Moist
Eyes Tears Mouth & Tongue
Unable to drink
Eager to drink
Drinks normally
Thirst
Goes Back Very Slowly (2 or more sec)
Goes Back Very Slowly (1 sec)
Goes Back Quickly
Skin pinch
Severe Dehydration
Some dehydration
No Dehydration
Classification
Plan C (Hospital)
Plan B (PHC)
Plan A (Home)
Treatment

* Assessment of Diarrhoea cases for dehydration

Treatment plan
Estimated fluid deficit
Loss in body weight
Degree of Dehydration
A
< 50 ml/kg
< 5 %
No signs of dehydration
B
50-100 ml/kg
5-10 %
Some dehydration
C
>100ml/kg
>10 %
Severe dehydration
In a diarrhoea case, sometimes we don’t have the 4 signs in the same category. Two signs in the category, are enough to classify the case. E.g. 1 sign in A & 1 sign in B + 2 signs in C, so we classify as C.

* Treatment plans; Plan A

The aim is to prevent dehydration from occurring. The steps are:Give extra fluid: ORS (Oral Dehydration Solution) & home fluids. Continue feeding of children (breast or other).Teach the mother:How to prepare and give ORS (1 litre of water “2 milk bottles or 4 bottles of Coke” then we add the sachet & give by cup & spoon or by cup directly, to be used within 24 hr of preparation, “she must discard what remains after 24h i.e throw it away”, to give him 50-100 ml every time the child passes stool.Signs of dehydration & the danger signs by showing her pictures of the main signs of dehydration & telling her to bring her child immediately to the health centre if such signs occur.


* Treatment plans; Plan B
The aim is to correct dehydration. The steps are:Give ORS in the health centre: Child’s weight (kg) x 75 ml = volume given over a 4 hr period. Assess every hour.Continue feeding or breast feeding.Give 100-200 ml of clean water. (for Bottle fed)Teach mother to prepare & give ORS correctly (cup and spoon), as in plan A.Assess every hour.If the child vomits the ORS, wait for 10 minutes and then restart giving him the solution slowly.Reassess after four hours, classify according to the hydration status, and use the appropriate plan accordingly.Note: Puffiness of the face & eyes is a sign of over hydration. In that case; Stop ORS, give fluids that doesn't contain much salt, give the fluid slowly& send the child for home treatment when puffiness has gone.Role of Breast feeding throughout an episode of diarrhoea:Reduce the severity & durationReduce the risk of dehydrationReduce the risk of diarrhoea worsening nutritional status.

* Treatment plans; Plan C

The aim is to correct dehydration urgently (immediately).Route: Intra-Venous or Naso-Gastric tube (we have to act quickly) In IV: give Ringer’s lactate solution. If it is not available, use normal saline. Calculate the amount of fluid using the following formula: Weight (kg) x 100ml over a period of 3 hours for children over the age of one year, and over 6 hours for infants, according to the following table: Amount of IV fluid/unit time
Age in Months
70ml/Kg body weight
30ml/Kg body weight
Following 5 hours
First hour
Less than 12
Following 2.5 hours
First 30 minutes
12+
Note: DO NOT attempt Naso-Gastric tube as it is not practiced in this country. The steps are: Reassess every hour, if no improvement, give fluid more rapidly. If the patient can drink, give ORS in 5ml/kg body weight/hr Reassess after completion, classify according to the hydration status & choose the appropriate plan accordingly.

* Oral Rehydration Solution

Composition: Sodium chloride: 3.5 gm, NaHCO3: 2.5 gm, KCl: 1.5 gm, Glucose: 20 gm, In 1000ml (1litre) of water. Some replace NaHCO3 by 2 gm Tri-sodium Citrate Di-hydrate which lessens vomiting, is tastier and more stable in humid and hot areas. Advantages of ORS: Cheap, effective and easy to give at home by the mother. This is why 95% of the cases are treated by ORS, as children will not develop dehydration, when they get diarrhoea. Preparation of ORS: The water should be boiled and cooled before the powder is added to avoid the loss of bicarbonate, and changes of concentration. In winter, warm the solution to 40oC to increase acceptability, increase the rate of absorption, decrease vomiting & decrease the risk of a drop in the body temperature when large volumes are consumed. If no ORS is available we use home prepared fluids or household food solutions, rice water, soups , fruit juices salt and sugar solution (one teaspoon of salt + one table spoon of sugar). Diarrhoea case fatality rate has decreased a lot after the introduction of the ORS, due to the prevention of dehydration.



Management of Chronic (Persistent) Diarrhoea
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Management of Blood in Stool

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* Drugs not to be used for diarrhoea

Anti-bacterials: Most cases are viral. Antibacterials are only used when there is lab evidence of bacterial infections (mainly cholera and bacillary dysentery). They will eventually lead to secondary infection due to the inhibition of the growth of the normal flora. Anti-protozoal: Used only when there is lab evidence of amoebic dysentery or giardiasis. Mycostatin: Monilia is a normal inhabitant of the GIT. Mycostatin is only given when there is oral thrush or anal moniliasis. Anti-motility agents and anti-spasmodics: As they may cause paralytic ileus in children. Pectocaolines: Will coat the GIT, allow colonization of the GIT bacteria with bacteria and lead to persistent diarrhoea. Anti-emetics: May cause CNS symptoms.