Ammonia: what adult neurologists need to know.

Hyperammonaemia is often encountered in acute neurology and can be the cause of acute or chronic neurological symptoms. Patients with hyperammonaemia may present with seizures or encephalopathy, or may be entirely asymptomatic. The underlying causes are diverse but often straightforward to diagnose, although sometimes require specialist investigations.

First manifestation of citrullinemia type I as Sandifer syndrome.

Kılıç M, Altınel-Açoğlu E, Zorlu P, Yüksel D, Bülbül S, Haeberle J. First manifestation of citrullinemia type I as Sandifer syndrome. Turk J Pediatr 2017; 59: 696-698.

Population dynamics of persistent Staphylococcus aureus isolated from the airways of cystic fibrosis patients during a 6-year prospective study.

Molecular typing of normal (n = 456) and small-colony-variant (SCV; n = 239) Staphylococcus aureus isolates cultured from the airways of 52 of 72 cystic fibrosis (CF) patients (72.2%) during a 6-year prospective study revealed a median long-term persistence of 37 months (range, 6 to 70). SCV persisted longer in the airways than the normal S.