Foveal damage in habitual poppers users.

Objective: To describe foveal damage in habitual use of poppers, a popular recreational drug.

Methods: Retrospective observational case series. Six patients with bilateral vision loss after chronic popper inhalation were seen in 4 university-based ophthalmology departments.

Determination of 3,4-methylenedioxymethamphetamine and its five main metabolites in rat urine by solid-phase extraction and high performance liquid chromatography with on line mass spectrometry.

The consumption of psychostimulant amphetamine-like drugs has increased significantly in recent years. Some MDMA metabolites are probably involved in the neurotoxicity and neurodegeneration caused by prolonged use rather than MDMA itself. We recently developed a method to analyze MDMA and its five main metabolites in rat plasma [7].

[Inferior polar nephrectomy for multi-recurrent inferior caliceal cystine lithiasis].

The authors report a case of left inferior caliceal cystine stones, which recurred despite well conducted medical treatment, 12 extracorporeal lithotripsy sessions, and percutaneous nephrolithotomy. A left lower pole nephrectomy was finally performed. No recurrence on the left side was observed with a follow-up of 3 years.

Treatment of a 1,4-butanediol poisoning with fomepizole.

Background: Toxicity of 1,4-butanediol, an industrial solvent and a substance of abuse, is still misunderstood and not well documented. To date, only supportive treatments are used in this poisoning.

Case Report: The case of a 43-year-old man who ingested 30 mL of a homemade 1,4-butanediol solution and who developed general seizures and coma has been reported here.