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Neuromuscular manifestations of diarrhea related hypokalemia
A Chhabra1, A K Patwari, S Aneja
1Department of Pediatrics, Lady Hardinge Medical College, New Delhi.
Insights
Diarrhea can cause severe hypokalemia (low potassium) in young children, leading to neuromuscular issues like weakness and paralysis. Early diagnosis and potassium repletion are crucial for recovery.
Area of Science:
- Pediatrics
- Neurology
- Gastroenterology
Background:
- Diarrhea is a common childhood illness.
- Hypokalemia (low potassium) is a potential complication of diarrhea.
- Neuromuscular manifestations can occur due to hypokalemia.
Purpose of the Study:
- To investigate the neuromuscular manifestations of diarrhea-related hypokalemia in children.
- To identify risk factors associated with severe hypokalemia.
- To highlight the importance of early diagnosis and treatment.
Main Methods:
- Study included 23 children aged 8-60 months with neuromuscular symptoms.
- Assessed severity of hypokalemia, clinical signs, and nutritional status.
- Correlated hypokalemia severity with stool frequency, dehydration, nutrition, and neuromuscular involvement.
Main Results:
- Neck flop (100%) was the most common neuromuscular sign.
- Severe hypokalemia was more prevalent in younger children and those receiving inadequate IV fluids.
- Significant correlations found between hypokalemia severity and stool frequency, dehydration, malnutrition, and neuromuscular symptoms.
Conclusions:
- Diarrhea-related hypokalemia poses a significant risk for neuromuscular complications in children, especially the malnourished.
- Inadequate potassium in rehydration solutions can exacerbate hypokalemia.
- Prompt diagnosis and potassium treatment rapidly reverse symptoms within 48-72 hours.
Abstract:
Twenty-three children from 8-60 months (mean age 21.13 months) admitted with neuromuscular manifestations of diarrhea related hypokalemia were studied. Forty four per cent cases were suffering from diarrhea at the time of admission but in majority of cases (56%), the diarrheal episode had already terminated. Mild hypokalemia was seen in 17.4%, moderate in 43.5% and severe in 39.1%. Neck flop was the commonest (100%) neuromuscular manifestations followed by diminished bowel sounds (82.6%), truncal weakness (52.2%), weakness of limbs (52.2%), lethargy (43. 5%), abdominal distension (43.5%), respiratory involvement (4.3%) and phantom hernia (4.3%). Two cases (8.7%) had flaccid paralysis of both the lower limbs. Severe hypokalemia was more frequently observed in children below 24 months of age and those who had received i.v. fluids or salt sugar solution before reporting in the hospital. A significant correlation was noticed between severity of hypokalemia and frequency of stools (p < 0.05), degree of dehydration (p < 0.01), severity of nutrition (p < 0.01) and extent of neuromuscular involvement (p < 0.01). Our results highlights the importance of diarrhea related hypokalemia particularly in young malnourished children who are rehydrated with solutions inadequate in potassium. Early diagnosis and appropriate treatment can promptly reverse these manifestations within 48-72 hours.