ESPE Abstracts

Introduction: Pseudohypoaldosteronism (PHA) is a clinical syndrome characterized by multiorgan or isolated renal tubular resistance to the effects of aldosterone, resulting in hyperkalemia, metabolic acidosis, and normal to high serum aldosterone levels. PHA may be primary (hereditary) or secondary (acquired). Primary forms are subclassified into two: PHA type 1 (salt-wasting) and PHA type 2 (salt-retaining). Secondary forms are typically associated with sever...

Key words: Primary hypoaldosteronism, aldosterone synthase deficiency, salt-wasting, failure to thrive, CYP11B2 gene mutationIntroduction: Aldosterone synthase deficiency is a rare autosomal recessive inherited disorder. The patients carry mutations in the CYP11B2 gene. It is primary hypoaldosteronism presented in early childhood with electrolyte abnormalities (hyponatremia, hyperkalemia, and metabolic ...

Background: Hepatocyte nuclear factor 1β (HNF1β) is a critical transcription factor that regulates the development of the kidneys, pancreas, liver and genital tract. Patients with deletions and mutations in the HNF1 β gene present with renal and extrarenal manifestations. The most important extrarenal finding is diabetes, also known as MODY5. Although it is generally diagnosed with hyperglycemia, diabetic ketoacidosis is rarely seen.<p class...

Pseudohypoaldosteronism is one of the least explored questions in clinical endocrinology. That leads to complexity in diagnosis and differential diagnostics of disease. A boy, aged 13 days was admitted to the hospital with complains: vomiting, low weight gain, constipation. Biochemical blood assay (BBA) and acid-base balance of blood: level of sodium – 127 mmol/l (N 132–145 mmol/l), potassium – 6.6 mmol/l (N 3.1–5.1 mmol/l), chlorine &#15...

Background: Adult height prediction models (AHP) were designed several decades ago based on the Caucasian population, hence they are not adapted to our population’s characteristics and secular changes. Technological advances have improved the accuracy of bone age (BA) reading through automated analysis, which has been incorporated into new AHP models, but have not been evaluated in the Mexican population.Objective:...

Background: Carney complex (CNC) is a rare autosomal dominant multiple endocrine neoplasia and lentiginosis syndrome, characterized by abnormal cutaneous and mucosal pigmentation, myxomas of the heart, skin, breast and other non-endocrine tumors. CNC is principally caused by loss-of-function mutations of PRKAR1A gene located at 17q22-24 coding for the regulatory subunit type I alpha of protein kinase A (PKA) gene. Cushing’s syndrome is a rare disorder in...

Introduction: The aldosterone synthesis is dependent on aldosterone synthase (AS), an enzyme encoded by the CYP11B2gene, one of the cytochrome P450 enzymes (P450c11Aldo). It catalysis the final steps of adosterone biosynthesis.Case: A 10 days old boy is presented with poor feeding, jaundice and weight lost. He was born from a 35 years old mother, as 4 th children, from consanguineous parents. One sister and one brother o...

Introduction: We describe a 4 month old term infant of a vitamin D deficient mother who presented with bronchopneumonia and cardiomegaly needed respiratory support. Despite resolution of bronchopneumonia he had persistent normal anion gap metabolic acidosis. In the process of investigating into symptomatic hypocalcaemia revealed rickets with 25-hydroxy-vitamin D (Vit D) deficiency and high parathyroid hormone (PTH) which led to distal renal tubular acidosis. B...

Pseudohypoparathyroidism (PHP) is a disorder caused by PTH resistance due to a genetic defect in imprinted GNAS cluster. It is characterized by high phosphorus, low to normal calcium and elevated PTH. It is classified into types 1a, 1b, 1c, pseudopseudohypoparathyroidism and type 2. Type 1a is often associated with Albright Hereditary Osteodystrophy (AHO) which is characterized by short stature, round facies, obesity, brachydactyly, ectopic calcifications and developmental del...

Background:There are numerous reports indicating increased risk of diabetic ketoacidosis (DKA) in new-onset type 1 diabetes (T1D) in childhood during COVID-19 pandemic. Delayed diagnosis, reduced access to immediate health care and psychological effects of pandemic have been suggested as possible reasons.Methods: We conducted cross sectional, single-center study at Department of Pediatrics, University Hospital Center Zag...