Alexandra Boucher

Analytical Findings of an Acute Intoxication after Inhalation of Methoxetamine

Methoxetamine (MXE) is increasingly used and abused, as it is frequently presented as being safer than ketamine, and legal. Cases of only MXE consumption being associated with the occurrence of seizures are rarely reported. A single MXE intoxication case by inhalation is described concerning a 21-year-old man, not known to be epileptic, who was found collapsed in his bedroom, supposedly after an epileptic seizure. He was transferred to the Emergency Department of the Henri Mondor Hospital, Aurillac, France. He was conscious, but with a sinus bradycardia (48/min) and an ST-segment elevation on the electrocardiogram, and a slightly increased creatine kinase level (270 U/L) and hyponatremia (127 mmol/L). New seizure activity occurred during hospitalization, but the clinical course in the intensive care unit was favorable. Quantitation of MXE in serum and urine using gas chromatography coupled to mass spectrometry (GC-MS) was developed, as well as a liquid chromatography coupled to tandem mass spectrometry (LC-MS-MS) method for the determination of MXE in hair. Limits of detection and quantification were, respectively, 2 and 10 µg/L for the GC-MS method and both 0.5 pg/mg for the LC-MS-MS method. Concentrations of 30 and 408 µg/L were, respectively, measured in serum and urine. Concentrations of 135 and 145 pg/mg were detected in two 2.5 cm hair strands, consistent with one or several consumptions during the 2 ½ months prior to sampling. A sample of the powder consumed was available and also analyzed. This case illustrates the dangers of this drug, which justify its classification as a narcotic in France since August 2013.

Illicit drugs or medicines taken by parachuting

Parachuting (also called bombing) is a method of drug delivery where illicit drugs or medicines are ingested after wrapping the substance. There are little data describing parachuting in the literature. To provide a description of this practice, all cases of parachuting reported to the national addictovigilance network up to 31 December 2014 were identified from spontaneous reports and specific surveillance programs. Cases were described according to the type of substance used, patient age and gender, type of complications, context of use and year of the event. Forty‐five cases of parachute use were identified and most (n = 43) occurred after 2011. Patients were mostly men (60%), and mean age was 28.9 years. The context of use, known in 19 cases, was mostly recreational. Complications were present in 24 cases, of which eight were serious. The substance was supposed to be 3,4‐methylenedioxymethamphetamine (MDMA) in the majority of cases (64.4%); research chemicals were more involved in the most recent years. The physical form was mainly granular (51.6%). The wrappers were a cigarette paper (nine cases) and in one case plastic package; in the other cases, the term of parachute was used without further details. The reason for use was not explained in the majority of cases; two patients indicated using a parachute for faster effect than with a methadone capsule. Clinicians should be aware of this delivery form as the results suggest that it is common and can involve a great variability of drugs.

Faits cliniquesDépistage urinaire des stupéfiants : interférence entre acide niflumique et cannabisUrinary toxicological screening: Analytical interference between niflumic acid and cannabis

UNLABELLED One case of analytical interference between cannabis and niflumic acid resulting in a false-positive screening in a 3-year-old girl is described. CASE REPORT The child was hospitalized because of behavioral disturbances of unknown origin. The only noteworthy finding in her medical history was a drug treatment including suppositories of niflumic acid, started 5 days before. The initial urinary toxicological screening was positive for cannabinoids, but the childs parents strongly denied the exposure. Another analysis was performed by the same laboratory on the same urine sample using chromatography and confirmed the absence of any cannabinoids, while clearly identifying the presence of niflumic acid. COMMENTS Immunoanalysis for toxicological analysis has various limitations that must be known. False-positive results of the urinary screening for cannabis in patients treated with niflumic acid are well recognized although seldom reported. All usual screening tests are not concerned by this ill-explained interference with niflumic acid and all formulations can be involved except transcutaneous formulations. Because of the wide use of this nonsteroidal anti-inflammatory drug, particularly in pediatric patients, it is important to know that this type of interference can occur with various screening tests for cannabis so that misleading conclusions can be avoided.

Ischémie digitale après injection d’un comprimé pilé de zolpidem, amélioration tardive par l’iloprost

The intra-arterial injection of crushed tablets can lead to severe vascular disorders including necrosis. A 35-year-old patient was hospitalized after the involuntary intra-radial injection of a crushed tablet of zolpidem. As the initial treatment with heparin and vasodilators was inefficient, iloprost injections were proposed. A recovery of most lesions was obtained, but the middle finger distal phalange had to be amputated. Iloprost has already been used successfully in the treatment of lesions caused by the intra-arterial injections of drugs of abuse. It can limit ischemia and even lead to necrosis healing, thus being an alternative to conventional treatments when they are ineffective.

Salbutamol misuse or abuse with fatal outcome: A case-report

Salbutamol is a short-acting agonist of the β2 adrenergic receptors sometimes misused or abused, which can result in various cardiovascular adverse effects. We report one case of fatal salbutamol misuse or abuse in a 36-year-old poorly controlled female asthmatic patient with a past medical history of alcoholism and a recent smoking cessation. She died shortly after hospital admission following acute dyspnea and sudden collapse at home. Toxicological analyses evidenced salbutamol overdose, and necropsy showed acute lung edema and marked dysplasia of the right ventricle and revealed the patient was pregnant. The involvement of an initial disorder of the ventricular rhythm leading to cardiac failure is suggested by the presence of several combined pro-arrhythmogenic factors, such as arrhythmogenic right ventricle dysplasia, hypoxemia related to bronchospasm and salbutamol overdose.

Intoxication par ecstasy chez un nourrisson de 10 mois

UNLABELLED We describe an accidental ecstasy poisoning in a 10-month-old girl. CASE REPORT A 10-month-old infant suddenly exhibited behavior disorders with restlessness, hypertonia, and repetitive movements. She was immediately taken to the Emergency Department. Cardiovascular (tachycardia and hypertension) and neurological disorders (major agitation, mydriasis, and nystagmus) were the predominating clinical features. The most common differential diagnoses including febrile convulsion, cranial trauma, or encephalitis were progressively ruled out. The urinary toxicological screen was positive for methamphetamine. MDMA, its main metabolite, and caffeine were subsequently detected in the infants urine using gas chromatography/mass spectrometry. The child had completely recovered the next morning. COMMENT Pediatric poisoning with ecstasy remains uncommon. To date, about 10 cases have been reported. All were due to accidental ingestion. Today, the use of ecstasy is no longer restricted to recreational purposes (rave parties, etc.) and it seems to be developing in private parties and in the home. The intrusion of this amphetamine-like drug into the domestic environment may expose young children to the accidental ingestion of ecstasy tablets.

Second Meeting of the French CEIP (Centres d'Évaluation et d'Information sur la Pharmacodépendance). Part II: Benzodiazepine Withdrawal

The aim of this meeting was to describe the news trends about abuse and addiction of anxiolytics and hypnotics. The part II of this meeting reviewed several aspects of the withdrawing benzodiazepines focusing in particular on clinical symptoms, biological patterns, and strategies for discontinuation. The discontinuation is usually beneficial due to the importance of adverse effects induced by long-term use of benzodiazepines. Several clinicals options have been described including gradual tapering of the current benzodiazepine, substitution with a long acting benzodiazepines or treating the symptoms of withdrawal. Psychological interventions range from a simple support through counselling to expert cognitive-behavioural therapy. However more controlled clinical trials are needed to promote adequate and optimal patient care in management of benzodiazepine withdrawing.

Ephenidine, diphenidine, and methoxphenidine complications reported to the French Addictovigilance Network

Ephenidine, diphenidine, and methoxphenidine belong to the family of diarylethylamines that are psychoactive substances derived from lefetamine (N, N‐di‐methyl‐1,2‐diphenylethylamine, also called L‐SPA). These dissociative anesthetic compounds act as potent and selective N‐methyl‐d‐aspartate receptor antagonists and were recently classified as narcotic drugs in France. The available data suggest a significant risk of psychic and somatic complications. To obtain more information, this retrospective study analyzed all spontaneous notifications of serious cases of ephenidine, diphenidine, and methoxphenidine abuse collected by the French Addictovigilance Network from 2012 to 2016 and classified them as proven, probable, and possible. For each case, age, sex, concomitantly ingested substances, pattern of abuse of psychoactive drugs, and related complications (scored using the poisoning severity score) were collected. Eighteen cases were identified (one in 2013, five in 2015, and 12 in 2016) in 16 men (median age: 31.5 years [IQR 25–75% 27–34]). Ephenidine, diphenidine, and methoxphenidine were involved in four, seven, and 11 cases, respectively. No case was considered proven, 16 cases were considered possible, and two probable due to polysubstance abuse (co‐ingestion of other new psychoactive substances). The reported clinical complications were minor in five cases, moderate in six cases, and serious in four cases, and included psychiatric, neurologic, and cardiovascular problems. This analysis indicates that the number of reported cases progressively increased from 2012 to 2016 and mainly concerned methoxphenidine. The addictive potential of these substances seems highly probable; but further investigations are needed to limit their harmful effects.