Latar belakang. Hingga saat ini, diare masih menjadi salah satu masalah kesehatan dunia, terutama di negara berkembang, termasuk di Indonesia. Salah satu komplikasi lanjutan dari dehidrasi pada diare adalah gangguan elektrolit serum. Tujuan. Untuk mengetahui prevalensi gangguan elektrolit serum pada pasien diare dengan dehidrasi serta karakteristik klinis pasien dan hubungan antara derajat dehidrasi terhadap gangguan elektrolit serum. Metode. Penelitian retrospektif dengan rancangan cross sectional menggunakan data rekam medis. Perbedaan dianalisis menggunakan uji Chi-square. Hasil. Jumlah pasien yang memenuhi kriteria adalah 173 pasien, 115 pasien yang memiliki data rekam medis lengkap. Tujuh puluh di antaranya mengalami gangguan elektrolit serum. Jenis gangguan elektrolit serum terbanyak dialami adalah hipokalsemia (17,34%). Dari 173 pasien diare dengan dehidrasi, 64,74% berjenis kelamin laki-laki, 43,35% berusia 12-35 bulan, 83,24% mengalami muntah, 52,6% mengalami demam, 4,62% mengalami dehidrasi berat. Penelitian ini tidak membuktikan adanya hubungan signifikan antara derajat dehidrasi terhadap gangguan elektrolit (p=0,243). Kesimpulan. Prevalensi gangguan elektrolit serum pada pasien diare dengan dehidrasi pada anak adalah 40,46%. Sari Pediatri 2018;20(1):37-42Kata Kunci: diare, dehidrasi, gangguan elektrolit serum
Prevalence of Serum Electrolyte Disorder in Children Under Five with Diarrhea and Dehydration in Dr. Sardjito Hospital on 2013-2016Rosyida Avicennianing Tyas, * Wahyu Damayanti, ** Eggi Arguni ** Background. Until now, diarrhea is still one of the world health problems, primarily in developing country. One of the complications of dehydration in diarrhea is serum electrolyte disorder. Objective. To determine the prevalence of serum electrolyte disorder in diarrhea patients with dehydration and the patient clinical characteristics, and the relationship of dehydration level to serum electrolyte disorder.Methods. This was a retrospective study with cross-sectional design using medical records. The differences analyzed using Chi-Square. Results. Of the total 173 patients, those met the criteria, 115 patients with complete medical records. Serum electrolyte disorder was observed in 70 patients. The major serum electrolyte disorder noted were hypocalcemia (17,34%). Of 173 diarrhea patients with dehydration, 64,74% were males, 43,35% were aged between 12 to 35 months, 83,24% had vomiting, 52,6% had a fever, 4,62% had severe dehydration. This study didn't show any relationship of dehydration level to serum electrolyte profile (p=0,243). Conclusion. The prevalence of serum electrolyte disorder is 40,46%. Sari Pediatri 2018;20(1):37-42