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Indian Pediatr 2010;47: 215-217 |
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Management of Acute Diarrhea: From Evidence to
Policy |
Shinjini Bhatnagar, Seema Alam* and Piyush Gupta*
National Co-ordinator, and *Joint National Co-ordinators,
IAP-UNICEF Program on Evidence-based Management of Diarrhea.
Correspondence to: Dr Shinjini Bhatnagar, Center for
Diarrheal and Nutrition Research, Department of Pediatrics, All India
Institute of Medical Sciences, Delhi 110 029, India.
Email:
[email protected]
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Diarrhea remains an important contributor
to childhood deaths in India, being one of the top 10 causes of deaths
among infants and children of 0-4 year of age. About 10% of infants and
14% of 0-4 year children die due to diarrhea in India(1). Important
interventions for reducing mortality due to childhood diarrhea include (i)
appropriate diarrhea management; and (ii) promotion of personal and
household hygiene practices. Two effective interventions have been
introduced as part of the diarrhea management in the last two decades,
namely low osmolarity ORS and zinc.
New Technical Advances: Low Osmolarity ORS and Zinc
The WHO Meeting of Experts concluded in 2001 that there
are programmatic advantages of using a single rehydrating solution
globally for all causes of diarrhea in all ages. Evidence from large, well
conducted, randomized controlled trials including those in India, showed
that low osmolarity ORS with 75 mEq/L of sodium and 75 mmol/L of glucose,
osmolarity of 245 osmol/L is effective in children with non cholera
diarrhea and in adults and children with cholera(2). This new improved ORS
was recommended by the WHO/UNICEF as the universal solution for all ages
and all types of diarrhea(3). It was also included in the national policy
by the Government of India in 2004. Subsequently, two Phase IV studies on
more than 100,000 adults and children hospitalized with diarrhea
(approximately 20% with cholera), reported no increased risk of
symptomatic hyponatremia with low osmolarity ORS(4).
A number of trials in India and other low middle income
countries have documented faster recovery and reduced severity from zinc
supplementation during acute diarrhea(5,6). Zinc deficiency is common in
children living in such settings due to low intake of animal foods, high
dietary phytate content, and overall inadequate diets(7). This led to the
WHO recommendation of supplemental zinc syrup or tablets (10 mg elemental
zinc for infants <6 months and 20 mg/day for children >6 months for
10 to 14 days) during acute diarrhea(8). Addition of zinc to current case
management strategy was evaluated in a cluster randomized study in six
primary health centers in North India(9). Prevalence and hospitalization
for diarrhea decreased significantly in the villages that received low
osmolarity ORS and zinc as compared to the control villages. It is
important to note that the prescriptions for antibiotics by care providers
and use of unwarranted injections were significantly less, and the ORS use
rates significantly higher in the intervention villages. Additionally,
zinc given during an episode of diarrhea reduced subsequent diarrheal
morbidity. Similar benefits on reduction of antibiotic use during diarrhea
were seen in a large multicentre study done across India, Brazil,
Ethiopia, Egypt, and the Philippines(10). Prompted by these results,
Government of India included zinc in the National program for treatment of
diarrhea in 2007.
Revised Guidelines for Management of Diarrhea
The revised guidelines for management of diarrhea (personal
communication) issued by the Government of India and the Indian
Academy of Pediatrics recommend low osmolarity ORS, zinc (10 mg elemental
zinc for infants 2 to 6 months and 20 mg/day for children >6 months
for 14 days) and continued feeding of energy dense feeds in addition to
breastfeeding(11). The guidelines emphasize the importance of home
available fluids, hand washing and other hygiene practices. Antimicrobials
are recommended only for gross blood in stools or Shigella positive
culture, cholera, associated systemic infection,
or severe malnutrition.
There is presently not enough evidence on either safety
or efficacy of antisecretory drugs like racecadotril for its routine use
in the treatment of diarrhea. There is no data from our settings.
Methodology of most of the published studies on anti secretory drugs is
questionable.
There is presently insufficient evidence to recommend
probiotics in the treatment of acute diarrhea in our settings as almost
all the studies till date are from developed countries. It is not possible
to extrapolate the findings of these studies to our setting where the
breastfeeding rates are higher and the microbial colonization of the gut
is different. The effect of probiotics is strain related and there is
paucity of data to establish the efficacy of the probiotics available in
the Indian market. To recommend a particular species, it will have to be
first evaluated in randomized controlled trials in Indian children. More
clarity is required on strain standardization, their colonization, dose
and duration of therapy, and interaction with other therapy (zinc) before
probiotics can be considered for use during diarrhea in India.
Challenges Ahead
The current challenge in the diarrhea treatment program
is an universal and more optimal application of the diarrhea management
guidelines. Data from the National Family Health Survey (NFHS-3)(12) show
that the ORS use rates have not changed in the last two decades; 18% in
1992-93 and 27% in 2005. The cause for concern is that the ORS rates
continue to be below 20% for states of Jharkand, UP, Nagaland, Assam and
Rajasthan. Additionally, only about 43% Indian children suffering from
diarrhea receive any oral rehydration therapy (ORT).
What is more alarming is that not more than 47% of
prescriptions for diarrhea included ORS in a recent UNICEF survey of 10
Indian districts; while "tonics", anti-diarrheal drugs and injections
continued to be prescribed in the same proportion as for ORS(13). Although
Government of India has initiated provision of zinc in addition to low
osmolarity ORS through public health system under the National Rural
Health Mission, the survey documented less than 1% of prescriptions for
zinc. One of the
main reasons for this is lack of knowledge and awareness amongst care
providers on how to implement existing cost-effective interventions. The
challenge is to achieve greater coverage of these interventions in
low-resource settings.
IAP-UNICEF Project to Improve Evidence Based Management of Diarrhea by
Promoting Use of Low Osmolarity ORS and Zinc
IAP and UNICEF initiated a nationwide program in 2009
to promote rational diarrhea management among medical colleges, health
providers across 8 states of the country, with specific focus in 32
districts with poor health indices. The aim is to improve case management
of diarrhea in the targeted areas by increasing awareness amongst health
providers through workshops conducted by trained pediatricians and
physicians from the same area.
The on-going program that started in September 2009 is
being conducted over three phases. In the initial phase, the IAP National
Consultative Group prepared a training capsule on evidence based
management of diarrhea in the form of power point presentations, posters
(see pages 214, 290) and videos. This was followed by a National Training
of Trainers meeting to train the Zonal and State Co-ordinators. Three
zonal workshops for Heads of the Departments of Pediatrics of medical
colleges from South, North, and East Zone at Chennai, Delhi, and Kolkata,
were concluded in Phase 2. In addition, State workshops were held at
Uttarakhand, Chhattisgarh, Madhya Pradesh, Bihar, Odisha, Rajasthan, Uttar
Pradesh and Jharkhand. Phase 3 will be initiated in March this year when
32 district level workshops will be conducted in the above mentioned eight
states.
This program reaffirms the Indian Academy of Pediatrics
commitment to find solutions for the rational management of diarrhea, a
disease that continues to affect millions of children in the developing
world.
Funding: UNICEF, India.
Competing interest: None stated.
References
1. Report on Causes of Death: 2001-03, Office of
Registrar General, India.
2. Hahn S, Kim Y, Garner P. Reduced osmolarity oral
rehydration solution for treating dehydration due to diarrhoea in
children: systematic review. BMJ 2001; 323: 81-85.
3. World Health Organization. Reduced osmolarity oral
rehydration salts (ORS) formulation – Report from a meeting of experts
jointly organized by UNICEF and WHO (WHO/FCH/CAH/01.22), New York, 18 July
2001. Available at: http://www.who.int/child_adolescent_health/en/.
Accessed 1 March, 2010.
4. Alam NH, Yunus M, Faruque ASG, Gyr N, Sattar S,
Parvin S, et al. Symptomatic hyponatremia during treatment of
dehydrating diarrheal disease with reduced osmolarity oral rehydration
solution. JAMA 2006; 296: 567-573.
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Hidayat A, et al. Therapeutic effects of oral zinc in acute and
persistent diarrhea in children in developing countries: pooled analysis
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6. Bhatnagar S, Bahl R, Sharma PK, Kumar GT, Saxena SK,
Bhan MK. Zinc with oral rehydration therapy reduces stool output and
duration of diarrhea in hospitalized children: a randomized controlled
trial. J Pediatr Gastroenterol Nutr 2004; 38: 34-40.
7. Walsh CT, Sandstead HH, Prasad AS, Newberne PM,
Fraker PJ. Zinc: health effects and research priorities for the 1990s.
Environ Health Perspect 1994; 102 Suppl 2: 5-46.
8. Fontaine O. Effect of zinc supplementation on
clinical course of acute diarrhoea. J Health Popul Nutr 2001; 19: 339-346.
9. Bhandari N, Mazumder S, Taneja S, Dube B, Agarwal
RC, Mahalanabis D, et al. Effectiveness of zinc supplementation
plus oral rehydration salts compared with oral rehydration salts alone as
a treatment for acute diarrhea in a primary care setting: a cluster
randomized trial. Pediatrics 2008; 121: e1279-1285.
10. Awasthi S. Zinc supplementation in acute diarrhea
is acceptable, does not interfere with oral rehydration, and reduces the
use of other medications: a randomized trial in five countries. J Pediatr
Gastroenterol Nutr 2006; 42: 300-305.
11. Bhatnagar S, Lodha R, Choudhury P, Sachdev HP, Shah
N, Narayan S, Wadhwa N, et al. IAP Guidelines 2006 on management of
acute diarrhea. Indian Pediatr 2007; 44: 380-389.
12. National Family Health Survey (NFHS-3) India,
2005-6. Available at: http://www.nfhsindia.org/nfhs3.html. Accessed March
1, 2010.
13. Management practices for childhood diarrhea in India. Survey of 10
districts. New Delhi: UNICEF; 2009.
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