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Cardiac function in malnourished children
C Phornphatkul1, Y Pongprot, R Suskind
1Department of Pediatrics, Chiang Mai University Medical School, Thailand.
Insights
Severe malnutrition in children causes heart muscle wasting and impaired ventricular function. Nutritional therapy improves cardiac mass and function, but careful fluid management is crucial during initial treatment.
Area of Science:
- Pediatric Cardiology
- Nutritional Science
- Cardiovascular Physiology
Background:
- Severe malnutrition significantly impacts multiple organ systems in children.
- Cardiac complications are a serious concern in severely malnourished pediatric populations.
- Understanding the cardiovascular effects of malnutrition is vital for effective treatment.
Purpose of the Study:
- To characterize the cardiovascular status of severely malnourished children.
- To evaluate the impact of nutritional rehabilitation on cardiac function.
- To identify critical therapeutic considerations during recovery.
Main Methods:
- Echocardiographic and Doppler measurements were used to assess cardiac function.
- Cardiovascular parameters were monitored before, during, and after nutritional therapy.
- Statistical analysis was performed on key indicators like fractional shortening and systolic time interval.
Main Results:
- Severely malnourished children exhibited decreased cardiac mass upon admission.
- Impaired ventricular function was observed in all children studied.
- Nutritional therapy led to significant improvements in cardiac mass and ventricular function.
Conclusions:
- Third-degree malnutrition causes both cardiac muscle wasting and ventricular dysfunction.
- Nutritional therapy is effective in reversing cardiac abnormalities associated with malnutrition.
- Close monitoring of fluid administration is essential during the initial phase of nutritional rehabilitation due to compromised heart function.
Abstract:
The cardiovascular status of severely malnourished children was characterized before, during, and after nutritional rehabilitation. In most children with third-degree malnutrition, cardiac mass was decreased on admission to the hospital and recovered subsequent to nutritional therapy. All children had echocardiographic and Doppler measurements indicative of impaired ventricular function which significantly improved during the course of hospitalization, as evidenced in part by the change in fractional shortening (P = 0.015), mean velocity of circumferential fiber shortening (P = 0.038), and systolic time interval (P = 0.030). We conclude that children with primary third-degree malnutrition not only have cardiac muscle wasting, but also have inherent ventricular dysfunction as the result of severe malnutrition that responds to nutritional therapy. Particular care with fluid administration is imperative in the first week of therapy, when heart function is the most compromised.