[Amatoxin-containing mushroom poisoning: An update]. / Syndrome phalloïdien : mise au point.

Amatoxin-containing mushroom poisoning occurs after consumption of certain mushroom species, of the genera Amanita, Lepiota and Galerina. Amanita phalloides is the most implicated species, responsible for over more than 90% of mushroom-related deaths. The α-amanitin is responsible for most of the observed effects. Symptoms are characterized by severe delayed gastrointestinal disorders (more than six hours after ingestion). The liver being the main target organ, outcome is marked by an often severe hepatitis which can evolve towards terminal liver failure, justifying orthotopic liver transplantation. Acute renal failure is common. Diagnosis of amatoxin-containing mushroom poisoning is based primarily on clinical data; it can be biologically confirmed using detection of amatoxins, especially from urine samples. In the absence of an antidote, early hospital management is essential. It is based on supportive care (early compensation of hydroelectrolytic losses), gastrointestinal digestive decontamination, elimination enhancement, amatoxin uptake inhibitors and antioxidant therapy. Combined therapy associating silibinin and N-acetylcysteine is recommended. Prognosis of this severe poisoning has greatly benefited from improved resuscitation techniques. Mortality is currently less than 10%. In the event of a suspected or confirmed case, referral to a Poison Control Center is warranted in order to establish the diagnosis and guide the medical management of patients in an early and appropriate way.

[Adverse effects of licorice consumed as food: An update]. / Toxicités de l'exposition alimentaire à la réglisse : mise au point.

The word "licorice" refers to the plant, its root, and its aromatic extract. From a commercial point of view, Glycyrrhiza glabra is the most important species with a wide range of uses (herbal medicine, tobacco industry, cosmetics, food and pharmaceutical). Glycyrrhizin is one of the main constituents of licorice. Glycyrrhizin is hydrolyzed in the intestinal lumen by bacterial ß-glucuronidases to 3ß-monoglucuronyl-18ß-glycyrrhetinic acid (3MGA) and 18ß-glycyrrhetinic acid (GA), which are metabolized in the liver. Plasma clearance is slow due to enterohepatic cycling. 3MGA and GA can bind to mineralocorticoid receptors with very low affinity, and 3MGA induces apparent mineralocorticoid excess syndrome through dose-dependent inhibition of 11ß-hydroxysteroid dehydrogenase type 2 in renal tissue. The cases of apparent mineralocorticoid excess syndrome reported in the literature are numerous and sometimes severe, even fatal, most often in cases of chronic high dose consumption. Glycyrrhizin poisonings are characterized by hypertension, fluid retention, and hypokalemia with metabolic alkalosis and increased kaliuresis. Toxicity depends on the dose, the type of product consumed, the mode of consumption (acute or chronic) and a very large inter-individual variability. The diagnosis of glycyrrhizin-induced apparent mineralocorticoid excess syndrome is based on the history, clinical examination, and biochemical analysis. Management is primarily based on symptomatic care and stopping licorice consumption.

Usefulness of lead isotopes analysis in a pediatric case of chronic lead poisoning.

Identifying the source of lead is a key measure in the management of childhood lead poisoning. In cases with multiple potential sources or with unusual circumstances, this identification can be complex. By comparing the lead isotopic ratios (IRs) between the potential sources and the blood sample from the patient, it is possible to identify which source caused the poisoning. We report here the case of a 13-years-old girl, screened for lead poisoning as she was known to eat paint chips from two walls in her apartment. Her blood lead level was 395 µg/L, and the environmental investigation came back negative. X-ray fluorescence found lead concentration in paints to be below the regulatory threshold of 1 mg/cm2. As there was no other potential source of lead exposure in this case, a comparative analysis of the IRs of lead between the child's blood and two presumed sources (bathroom and kitchen paints) was performed. This analysis confirmed the source of lead intoxication to be the paints in the apartment, mostly from the bathroom wall.

Possible impact of the COVID-19 pandemic on the recreational use of nitrous oxide in the Paris area, France.

INTRODUCTION: Recreational use of nitrous oxide (N2O) is increasing in Western countries, including France. During the COVID-19 pandemic, some authors warned that recreational N2O use could increase further as the supply of illicit drugs was impacted by various containment measures. METHODS: We retrospectively analyzed N2O exposures reported to the Paris Poison Control Center (France) from 2010/01/01 to 2021/04/15. The Poison Severity Score was used to grade severity. RESULTS: During the study period, 93 cases of N2O recreational exposures were reported (male/female ratio: 1.1; median age: 20.9 years range: [14.8-49.0]). The first case was reported in 2012, 84/93 (90%) and 65/93 (70%) were reported since 2019 and March 17th 2020 (first lockdown in France) respectively. Most of the patients were symptomatic (88/93; 95%) and developed neurological symptoms (78/93; 84%). Among the fourteen patients who developed moderate to severe symptoms, eleven were reported after March 2020. CONCLUSION: Despite a marked increase in recreational N2O exposures during the COVID-19 pandemic, the exact impact of COVID-19 on this increase remains to be determined as it was observed from 2019.

Exposures associated with making or playing with viscoelastic polymer toys known as Slime: a retrospective case series from French Poison Control Centres.

Context: Slime is a slow-flowing material with viscoelastic properties which is attractive to children. Its preparation is based on the crosslinking of polyvinyl alcohol, polyvinyl acetate or starch with boric acid.Objectives: The goal of this study was to describe the adverse effects of Slime.Materials and methods: This is a descriptive retrospective study of cases of exposure reported to French Poison Control Centres between January 2014 and May 2018. The following parameters were used: age and sex, date and circumstances of exposure, symptoms and severity.Results: Two hundred and eight (208) cases of exposure were recorded, 93 cases happened in 2017, and 88 cases in the first four and a half months of 2018. The average age was of 8 years old; 190 patients were younger than 15. Fifty-seven percent (57%) were female. Regarding routes of exposure, 168 were oral, 30 cutaneous, eight ocular, one inhalation and one ear exposure. Eighty-two (82) patients were symptomatic, including 81 cases of low severity and one of average severity (keratitis). All cases lead to recovery.Conclusion: No significant adverse health effects are expected to develop if only small amounts are swallowed; making Slime with home ingredients is a potential cause of boric acid exposure that must be supervised by adults.

[The American opioid overdose crisis: A threat for France?] / La crise des overdoses américaines : une menace pour la France ?

Since the 2000s, a concerning increase in opioid-analgesic-related overdoses and deaths has been reported in the United States. In contrast with opioid overdoses reported in the 80-90s mostly involving heroin, currently it is the misuse of opioid analgesics that is mainly responsible for opioid overdoses. This crisis is related to factors (not limited to the US) which occurred during the 90s and which have led to a broad prescription of opioids in non-cancer pain. In Europe and France, there is (but to a much lesser extent) an increase in strong opioid consumption and in opioid prescription related morbi-mortality. This situation, which can be described as "worrying" today, requires awareness among the French medical community, both upstream (rational prescription of opioids) and downstream (optimal management of opioid poisoning) from the opioid prescription.

[Poisoning with Jatropha curcas: 24 cases reported to Paris and Marseille Poisons Centers]. / Intoxications par pignons d'Inde (Jatropha curcas): 24 observations rapportées aux centres antipoison de Paris et Marseille.

Jatropha curcas L. is an inedible plant belonging to the Euphorbiaceae family that is growing in subtropical zones of all continents. We report a series of 24 cases of poisoning with J. curcas seeds or fruits reported to poison centers in Paris and Marseille between December 2000 and June 2014. Fifteen adults and 9 children ingested J. curcas seeds or fruits. All patients experienced gastrointestinal disorders, within the first hours following ingestion: nausea, vomiting, diarrhea and abdominal pain. Laboratory investigations performed in 10 patients revealed minor abnormalities: CK elevation (8 cases), dehydration (5 cases) with moderate elevation of serum creatinine levels (3 cases), and mildly increased serum bilirubin (8 cases). Complete remission of all clinical signs was observed within 48 hours in the 20 cases for which the outcome was known. Previously published cases of J. curcas poisoning were very similar to ours: As in our series, gastrointestinal disorders were always present. They were sometimes associated with neurological or cardiovascular signs, and hepatic or renal disorders; these were generally interpreted as complications of severe gastroenteritis, although direct toxic effects could not be formally excluded. In most cases, simple supportive measures were sufficient to ensure complete recovery within 24-48 hours. J Curcas poisoning incidence is certainly increasing because the plant is cultivated to produce biodiesel and is now largely present in most subtropical countries. As a consequence, local health professionals should be informed of the toxic properties of this plant.

Toxic hepatitis induced by a herbal medicine: Tinospora crispa.

Herbal remedies are becoming increasingly popular in many countries. Tinospora species (Menispermaceae) is commonly used as a herbal medicine in South Asia, but very few toxic effects have been described. We report a case of acute hepatitis associated with chronic use of high doses of Tinospora crispa. A 49-year-old male with chronic low back pain bought a herbal medicine at a market in Vietnam that was supposed to be Tinospora crispa, and started to take 10 pellets per day. He had no medical history and did not take any other drugs or toxins. Four weeks later; he developed dark urine and pale stools, associated with asthenia and right hypochondrial pain. Two months after starting treatment, he was referred to the hepatology department with jaundice. Blood tests showed aspartate aminotransferase: 1.169 IU/l, alanine aminotransferase: 2.029 IU/l, total bilirubin: 20.47 mg/dl, direct bilirubin: 13.29 mg/dl, and γ-glutamyltransferase: 243 IU/l. Viral and autoimmune hepatitis were eliminated. Upper abdominal ultrasound was normal. Histopathological findings were consistent with a toxic reaction. The herbal medicine was stopped on admission and the patient fully recovered without treatment, with normal liver function 2 months after the acute episode. Tinospora crispa was clearly identified in the pellets by microscopic analysis of the botanical characters combined with chromatographic fingerprints. The use of herbal medicines containing Tinospora crispa can induce toxic hepatitis. Recovery can be complete after discontinuation. This case highlights the risk associated with traditional herbal remedies.

[Exposure to liquid detergent capsules: a study of the cases reported to the Paris Poison Center, 2011-2012]. / Expositions accidentelles d'enfants aux détergents liquides en capsules : expérience du centre antipoison de Paris (2011-2012).

OBJECTIVE: To evaluate the toxicity of liquid detergent capsules for children. METHODS: Analysis of 684 consecutive cases from the Paris Poison Center (2011-2012). RESULTS: Most enquiries (97 %) concerned children 5 years of age or younger. The main circumstances of exposure were ingestion alone (72.4 %) or together with eye or skin contact (7.5 % and 7.3 %, respectively). The effects observed were generally due to the irritating properties of concentrated detergents: minor digestive disturbances (particularly vomiting in nearly 50 % of cases) after ingestion and conjunctivitis and/or keratitis after eye contact. The main complications were 24 cases of keratitis and one case of pulmonary toxicity after ingestion. A rash was observed in nine patients; it was delayed in two. CONCLUSIONS: The effects observed with liquid detergent capsules were very similar to those resulting from exposure to other detergents. However, exposure to these agents are very frequent and often results in eye contact, which may be responsible for keratitis, and after ingestion detergent inhalation is a possible complication. All cases with eye symptoms or cough after liquid detergent capsule exposure deserve prompt medical examination and assistance. Greater awareness of both health professionals and consumers on the dangers and risks of these laundry detergent pods is required for better treatment of exposure accidents and for their prevention.

Tender Nesting Polypore (Hapalopilus rutilans) poisoning: report of two cases.

INTRODUCTION: Only four cases of Hapalopilus rutilans poisoning have been previously published. We report two new cases. CASE REPORTS: A father and his 13-year-old daughter picked mushrooms identified as Fistulina hepatica specimens and ate an unknown quantity (Hour 0). At Hour 12 post-ingestion, both subjects complained of abdominal pain, then nausea, vomiting, anorexia, asthenia, diplopia, and blurred vision. The father also had visual hallucinations. On Day 2 post-ingestion, clinical examination showed multidirectional nystagmus. The father also had balance disorders and both subjects emitted purple urine. Laboratory tests showed elevated serum creatinine and blood urea levels, proteinuria and leukocyturia in both subjects, and mild elevation of hepatic enzymes in the father. Urine color returned to normal on Day 2 and Day 7 post-ingestion in the girl and her father, respectively. Complete clinical and biochemical recovery was obtained within one week in both cases. DISCUSSION: Signs and symptoms are similar to those previously reported after H. rutilans ingestion. This mushroom can be easily confused with F. hepatica. Purple discoloration of the urine after ingestion of a polyporic mushroom is highly suggestive of H. rutilans poisoning. Polyporic acid is probably the active toxin.

A life-threatening dichlorophen poisoning case: clinical features and kinetics study.

BACKGROUND: Human dichlorophen poisoning is rare. We aim to report a case of dichlorophen poisoning resulting in complete recovery despite life-threatening multiorgan failure and huge serum dichlorophen concentrations. METHODS: Description of features and management in one dichlorophen-poisoned patient. After liquid-liquid extraction, dichlorophen concentrations in the urine and the serum were measured using liquid chromatography-heated electrospray ionization-tandem mass spectrometry (LC-HESI-MS/MS). CASE REPORT: A 74-year-old female self-ingested an anti-moss dichlorophen solution (360 g/L) in a suicidal attempt. She rapidly developed caustic esophageal and gastric mucosal injuries, confusion, profuse diarrhea, and electrolyte disturbances. Initial elevation in serum aminotransferase and γ-glutamyltransferase concentrations resolved over 6 days. Serum dichlorophen concentration measured was 708.1 µg/L on admission, and its elimination was prolonged (serum apparent elimination half-life: 35.5 h), peaking in urine on day 2. Mild elevation in serum creatine phosphokinase concentration (peaking 48 h post-ingestion) and acute renal failure (requiring hemodialysis on day 8) occurred. The final outcome was favorable with supportive management. CONCLUSION: Dichlorophen ingestion results in life-threatening multiorgan dysfunction including rapid onset of caustic digestive lesions, diarrhea, liver enzyme disturbances, as well as acute kidney injury and rhabdomyolysis. Recovery can be complete if prompt supportive management is provided.