To study the respiratory function and acid-base status in hypothermia, we retrospectively reviewed data of arterial blood gas analysis obtained from 63 patients with accidental hypothermia on admission. Twenty-nine showed acidemia and 16 showed alkalemia. The following results were obtained from 57 patients in whom blood gas analysis was performed in room air. PaCO2 was 46 mmHg or more in 2 and...

how to cite this article: karimzadeh p, jafari n, ahmad abadi f, jabbehdari s, taghdiri mm, alaee mr, ghofrani m, tonekaboni sh, nejad biglari h. propionic acidemia: diagnosis and neuroimaging findings of this neurometabolic disorder. iran j child neurol. 2014 winter; 8(1):58-61.   objective propionic acidemia is one of the rare congenital neurometabolic disorders with autosomal recessive inher...

SUMMARY Methylmalonic acidemia is an inborn disorder of amino acid metabolism that commonly presents with neurologic deficits. We present the results of multi-slice proton MR spectroscopy and diffusion-weighted imaging of the brain in two patients with methylmalonic acidemia. The findings consisted of restricted diffusion and elevated lactate in the globi pallidi, compatible with acute infarcti...

Neonatal-onset propionic acidemia is the most common form of disorder. A 9-days old new born admitted to our hospital with lethargy suggested urea cycle defect at first look due to lack of metabolic acidosis, normal ketone and anion gap in laboratory evaluations. The case mimicking urea cycle defect, which was diagnosed as neonatal-onset propionic acidemia by specific tests, was presented becau...

A 3-year-old male with isovaleric acidemia presented for dental rehabilitation under general anesthesia. In times of stress, such as in the perioperative period, patients with isovaleric acidemia are at greater risk for morbidity and mortality from disordered metabolism, including glucose disturbances, hyperammonemia, hypocalcemia, and non-anion gap metabolic acidosis. Communication between the...

Propionic acidemia is a rare, autosomal, recessively inherited inborn error of propionate metabolism. It presents most often as a neonatal life threatening emergency with metabolic acidosis, hyperammonemia, hyperglycinemia and hyper gylcinuria. Since its first description in a male infant with episodic metabolic acidosis and hyperglycinemia(l), more than 100 cases have been reported. The presen...

Methylmalonic aciduria (MMA) is a disorder of organic acid metabolism resulting from a functional defect of methylmalonyl-CoA mutase (MCM). MMA is associated with significant morbidity and mortality, thus therapies are necessary to help improve quality of life and prevent renal and neurological complications. Transgenic mice carrying an intact human MCM locus have been produced. Four separate t...

Propionic acidemia is an inborn error of metabolism caused by deficiency of the mitochondrial enzyme propionyl-CoA carboxylase. Sensorineural deafness and severe hearing loss have been described as long-term complications of this disease, however, the mechanism has not yet been elucidated. We have recently shown by patch clamping experiments and Western blots that acute and chronic effects of a...

INTRODUCTION A lack of data exists in the literature evaluating acidemia on admission as a favorable or negative prognostic factor in patients with acute cardiogenic pulmonary edema (ACPE) treated with non-invasive continuous positive airway pressure (CPAP). The objective of the present study was to investigate the impact of acidemia on admission on outcomes of ACPE patients treated with CPAP. ...