Complicated Severe Acute Malnutrition

Complicated severe acute malnutrition is severe wasting or nutritional oedema accompanied by poor appetite, emergency signs or significant medical complications. These children require inpatient stabilization because ordinary paediatric fluid and feeding regimens can precipitate heart failure, electrolyte disturbance and death.

• Treat hypoglycaemia immediately and begin frequent feeding.

• Prevent and treat hypothermia.

• Begin F75 stabilization feeds in small frequent volumes. Nasogastric feeding is appropriate when oral intake is inadequate but the gut is functional.

• Dehydration is managed cautiously. In a child with SAM and diarrhoea who can tolerate enteral fluid, use ReSoMal approximately 10 mL/kg/hour for the first 2 hours, then approximately 7.5 mL/kg/hour, alternating subsequently with F75 according to response.

• True shock requires extreme caution. One locally used regimen is Ringer's lactate with 5% dextrose 20 mL/kg over 2 hours, with continuous reassessment. Severe anaemia requires urgent transfusion rather than crystalloid loading.

• Treat presumed bacterial infection empirically because typical inflammatory signs may be absent.

• Correct potassium and magnesium deficiency and avoid excessive sodium.

• Withhold iron during initial stabilization; start during nutritional rehabilitation once infection is controlled and weight gain has begun.

• Transition from F75 to rehabilitation feeding only after appetite returns, oedema begins resolving and acute complications stabilize.

Clinical toolsCalculators

BMI GCS EDD Parkland Formula

Corrected Sodium Corrected Calcium Anion Gap Creatinine Clearance Insulin Calculations qSOFA Wells PE Wells DVT CHA₂DS₂-VASc HAS-BLED CURB-65 Centor/McIsaac

Stunting

Stunting is impaired linear growth, defined as height for age Z score below minus 2 relative to WHO growth standards. Severe stunting is below minus 3.

It reflects chronic or recurrent nutritional deprivation, infection and adverse environmental exposures rather than acute weight loss.

Stunting during the first 1000 days of life is particularly important because it is associated with impaired neurodevelopment, reduced educational performance and long term metabolic consequences.

The child is short for chronological age, often without the striking wasted appearance seen in acute malnutrition.

Associated findings may include:

• Poor developmental progress
• Recurrent infection
• Micronutrient deficiency
• Delayed motor development
• Low weight if wasting coexists

Markedly disproportionate short stature, dysmorphic features or preserved or increased weight despite poor height gain should trigger assessment for genetic, endocrine or skeletal disease.

• Measure recumbent length below 2 years and standing height thereafter.

• Plot height for age using WHO standards.

• Assess parental heights, birth history, growth trajectory and nutrition.

• Evaluate for chronic gastrointestinal, cardiac, renal, infectious or endocrine disease where indicated.

• Consider thyroid function, coeliac serology, FBC, renal function and other investigations when growth pattern is not readily explained nutritionally.

• Improve diet quality, protein and energy adequacy rather than focusing on one isolated nutrient.

• Continue breastfeeding and age appropriate complementary feeding.

• Treat chronic infection, diarrhoeal disease, parasitic disease and micronutrient deficiencies.

• Address environmental contributors including recurrent infection and poor sanitation.

• Children with severe or unexplained stunting require assessment for chronic medical disease and developmental consequences.

Complicated Severe Acute Malnutrition

Overview

Clinical Features

Diagnosis

Management

Overview

Clinical Features

Diagnosis

Management