Short message service as a tool for mass follow-up of patients requesting a poison centre: a retrospective comparative study in France.

INTRODUCTION: The short message service is an alternative to telephone follow-up of exposure cases reported to poison centres. The aim of this study was to compare the proportion of exposure cases successfully followed up and the respective cost of telephone and short message service follow-up between two poison centres, one using both methods of follow-up (Paris centre) and the other using telephone follow-up only (Nancy centre). METHODS: In 2021, we included cases eligible for short message service follow-up at both centres. Eligibility criteria were calls from the public reporting non-toxic or minor toxic exposure not requiring medical consultation. We collected the follow-up type (telephone/short message service) and outcome (success/failure). The cost of each type of follow-up was estimated. RESULTS: In 2021, 16,867 and 11,107 exposure cases were eligible for short message service follow-up at the Paris and Nancy centres, respectively. The Paris centre followed up 86.2 per cent of cases by short message service, and the remainder by telephone, while the Nancy centre followed up all cases by telephone. The Paris centre had a greater follow-up rate compared to the Nancy centre (93.0 per cent versus 43.6 per cent; P < 0.0001). Overall, the success rates were similar between the two centres (P = 0.06), with short message service and telephone follow-up showing comparable success rates (88.1 per cent versus 88.7 per cent; P = 0.25). On average, telephone follow-up took almost twice as long (1.51 min versus 0.85 min) and cost 1.3 times more (0.59 euros versus 0.45 euros) than short message service follow-up. DISCUSSION: Short message service follow-up allows more patients to be successfully followed up at a lower cost compared to telephone-only follow-up, albeit with potential differences in information quality. CONCLUSIONS: Short message service follow-up is a promising tool for poison centres to follow up with patients. Further studies are needed to assess the quality of the data collected and caller satisfaction.

Button Battery Ingestion in Children (PilBouTox®): A Prospective Study Describing the Clinical Course and Identifying Factors Related to Esophageal Impaction or Severe Cases.

In this study, we aimed to identify the factors related to esophageal impaction following button battery (BB) ingestion in children. PilBouTox, a prospective multicentric observational cohort study, was conducted from French Poison Control Centers between June 1, 2016 and May 31, 2018. Children (0-12 years old) with BB ingestion were included. After ingestion, patients were monitored for 21 days or more if they remained symptomatic (maximum 1 year). Causes of ingestion, clinical manifestations, medical management, and the outcomes were recorded. In total, 415 patients were included; among them, 35 had esophageal impaction and 14 had severe complications or died. Seven symptoms were closely related (relative risk (RR) > 30) to esophageal impaction: anorexia, drooling, dyspnea, fever, hemodynamic instability, pallor, and pain. Furthermore, BBs > 15 mm were related to esophageal impaction (RR = 19, CI95% [4.1; 88]). The absence of initial symptoms was a protective factor for esophageal impaction (RR = 0.013, CI95% [0.002; 0.1]). Nine symptoms were closely related (RR > 30) to major effects and death: dyspnea, cough, dysphagia, drooling, fever, hemodynamic instability, pain, pallor, and vomiting. Seven symptoms were related to esophageal impaction and their rapid recognition could help to ensure that the patient is taken to a health care facility. Nine factors were related to the major effects of BB ingestion. We recommended an X-ray as soon as possible to determine the position of the BB.Trial Registry: Clinical Trial ID: NCT03708250, https://clinicaltrials.gov/ct2/show/NCT03708250.

Poison control centres and alternative forms of communication: comparison of response rates between text message and telephone follow-up.

INTRODUCTION: In recent years, the number of patients managed by poison control centres (PCCs) has increased without a proportional increase in the number of physicians. To improve efficiency without neglecting patient follow-up, some PCCs have begun using text messages. We evaluated the difference in response rates between text messaging and traditional telephone follow-up. MATERIALS AND METHODS: This retrospective, monocentric, non-randomised cohort study was conducted using data from calls made by the New Aquitaine PCC between February 27, 2019, and March 31, 2019. Patients were contacted up to three times by a phone call or short message service (SMS). RESULTS: For the analysis, 823 patients were included. At the end of follow-up, the response rates were similar in the phone call and SMS group (94 vs. 94%; p = 0.76) with median [interquartile range] response times of 0 min [0; 27 min] and 29 min [6; 120 min], respectively. The response rates did not differ in subgroups stratified according to sex, self-poisoning vs. relative response, age class, and solicitation during working hours vs. outside of working hours (all p > 0.5). Moreover, health practitioners required 2.4-fold more time to call than to send text messages (p < 0.001), and all practitioners were satisfied or very satisfied with text messaging implementation. CONCLUSION: Patients had good adherence to text messages. Text messages are easy to use, rapid, and allow the physician to easily prioritise follow-up without occupying the emergency line. Additionally, the costs of installation and maintenance are low for text message systems; these low costs facilitate the implementation of such services in various medical situations.

Poisoning during the COVID-19 outbreak and lockdown: retrospective analysis of exposures reported to French poison control centres.

INTRODUCTION: The aim was to assess the impact of the COVID-19 pandemic on French Poison Control Centre (PCC) call characteristics. METHODS: Reported cases of xenobiotic exposures from 1 March to 30 April in 2018, 2019, and 2020 were extracted from the French National Database of Poisonings. The collected data included call, patient, and exposure characteristics for both general calls and for calls involving sentinel xenobiotic categories related to the COVID-19 pandemic. The 2020 exposures were compared to 2018-2019 exposures by using simple logistic models in order to provide effect size with odds ratios. RESULTS: From March to April 2020, 32,182 exposures were reported to French PCCs with an overall increase of 5.6% compared to exposures in the same time frame in 2018-2019. A similar increase in calls was observed in non-epidemic and epidemic COVID-19 areas with an increase in calls from the public (+13.6%) while calls from health-professionals decreased (-7.5%). Despite the increase in exposures, the incidence of symptomatic exposures remained stable (-0.4%) with a decrease in severity (moderate/severe -17.2%). A significant increase in exposures to home cleaning products containing biocides, essential oils, and alcohol-based hand sanitizers (odds ratio >1.3, p < .0001) was observed. DISCUSSION AND CONCLUSION: The COVID-19 pandemic altered calls to French PCCs with a small increase in calls during the study period and changes in the pattern of exposure. These changes possibly reflected the indirect consequences of the COVID-19 pandemic i.e., limited access to primary care, fear of contracting COVID-19 and anxiety related to home isolation.

Agents Involved and Severity of Acute Ocular Exposure Reported at a Poison Control Center.

PURPOSE: The aim was to identify severity factors useful in the initial management of patients with acute ocular exposure while considering both categories of products involved and circumstances of exposure. METHODS: A retrospective study over a one-year period that included patients who benefited from the poison center services for eye exposure to a chemical substance. RESULTS: Within a year, 1582 patients were identified. The sex ratio (M/F) was 0.8. The mean age was 28.5 ± 20.3 years. Among children, those under 4 years represented the most significant age category (n = 277; 50.1%). Exposure to chemicals were mild (n = 1342, 84.8%). Adults over 65 years appeared to be more likely to have severe ocular damage (OR: 4.75; [2.26; 9.98]). Unintentional exposures were the most frequent (n = 1548; 97.8%). Ocular exposure primarily occurred at home (n = 937; 59.2%), and at the workplace (n = 396; 25%) which was associated with a higher risk of severe injury (OR: 2.93 [2.16; 3.97]). Cleaning products accounted for 31.2% of exposure cases (n = 457). Exposure to disinfectants is a risk factor of more severe injuries (OR: 1.48 [1.002; 2.19] p = .0472) whereas pH and severity of injuries were not statistically significant. CONCLUSIONS: Our study showed the very wide variety of products involved in ocular exposures. Clinicians should pay attention to factors associated with severe injury, including young and old age, work-related injury, substances such as disinfectants, in addition to previously known factors such as acids and bases.

Snake bites by European vipers in Mainland France in 2017-2018: comparison of two antivenoms Viperfav® and Viperatab®.

Context: Today, immunotherapy with Fab or F(ab')2 fragments is considered as a gold standard treatment for patients bitten by vipers. We compared the efficiency of two antivenoms, Viperfav® and Viperatab®, in mainland France in 2017-2018 with data provided by the French poison control centre (PCC).Methods: Patients with a moderate (2a and 2b) or severe (3) envenomation after a European viper bite and treated with immunotherapy were included and the markers chosen were the risk of post-antivenom treatment worsening, duration of hospital stay and persistent functional discomfort on day 15. Statistical studies were based on multivariate data analysis.Results: Two hundred and ninety-seven cases were recorded. One hundred and eighty-two (61.3%) patients received Viperfav® and 115 (38.7%) received Viperatab®. Compared to Viperfav®, use of Viperatab® significantly increased the risk of post-antivenom treatment worsening (OR* 12.05; 95%CI [3.11; 46.70]; p < .001). No significant difference between these antivenoms was recorded with respect to the duration of hospital stay and persistent functional discomfort on day 15. Viperfav® and Viperatab® have a similar tolerance (p > .21). Otherwise, duration of hospitalisation was significantly increased by a delay of immunotherapy infusion of more than 12 h (OR 2.70; 95%CI [1.45-5.06]; p = .002) or a preventive administration of LMWH (OR 6.55; 95%CI [1.58-27.13]; p=.02).Discussion: While Viperfav® and Viperatab® have a similar tolerance, our data show that Viperatab® was associated with a higher risk of post-antivenom treatment worsening compared to Viperfav®. Furthermore, this study confirms that the antivenom should be used as soon as possible. Indeed, patients receiving the immunotherapy infusion from the grade 2b presented significantly more frequent exacerbated symptoms (OR 3.99; 95%CI [1.16-13.73]; p=.028) after the antivenom infusion compared to grade 2a group.Conclusions: Whereas no significant difference between these antivenoms was recorded with respect to the duration of hospital stay and persistent functional discomfort on day 15, use of Viperatab®, compared to Viperfav®, significantly increased the risk of post-antivenom treatment worsening (OR* 12.05; 95%CI [3.11; 46.70]; p < .001). Taken together, these data show that Viperfav® is the treatment of choice for the management of snake bites in France.

Increased severity associated with tallowamine in acute glyphosate poisoning.

Context: During the re-approval process of glyphosate in Europe, it was mentioned that glyphosate-based products (GBF) were more toxic than glyphosate alone. This phenomenon was attributed to the surfactants and among them, polyethoxylated tallowamine (POEA) has been suspected to significantly contribute to the toxicity of glyphosate products. In animal data acute oral toxicity of POEA has been suggested to be greater than glyphosate toxicity in animal studies. There are no data, however, comparing the clinical signs and severity of acute human poisoning with tallowamine-containing GBF (TA) and non-tallowamine-containing GBF (NTA). The aim of this study was to compare the severity of oral poisoning between TA and NTA cases, reported to the French Poison Control Centres (PCC) over 7 years.Methods: This is a retrospective study of cases of oral exposure to GBF reported to French PCCs between January 1st, 2008 and December 12th, 2014. The formulation of every GBF was reviewed using the PCC national database of products and compositions, to identify cases involving TA, NTA, or GBF with unknown co-formulants.Results: Between 2008 and 2014, 1362 cases of GBF ingestion were registered in the PCC national database of poisoning cases. Among them, 429 were symptomatic acute cases of ingestion of GBF. There were 235 exposures to TA, 105 to NTA, and 89 to unknown GBF. There were more severe cases in the TA group than in the NTA group (p = 0.037).Discussion: The present study shows that POEA rather than other co-formulants leads to more severe symptoms in those patients ingesting GBF. The acute toxicity of POEA might be explained by its irritating properties; in experimental studies, it caused skin irritation and severe eye and mucous membranes irritation.Conclusion: In this study, severe respiratory symptoms were also more frequently reported in the TA group. The surfactant properties of POEA are likely to cause aspiration pneumonitis which is a plausible explanation for the respiratory failure complicating severe GBF poisoning cases.

Human exposure to banned pesticides reported to the French Poison Control Centers: 2012-2016.

In 2008, 30 active substances from plant protection products were banned from marketing in France. Nevertheless, the French Poison Control Centers continue to see cases of poisoning caused by these active substances that are no longer approved. The aim of this study was to describe the characteristics of the reported cases in mainland France and in overseas French territories, over the period 2012-2016. A total of 408 cases of human exposure were reported during the study period. The most commonly reported substances were dichlorvos (24.8%, n = 108), paraquat (23.8%, n = 97), aldicarb (14.7%, n = 60), diuron (9.6%, n = 39), dinocap (5.1%, n = 21), methomyl (4.2%, n = 17), carbofuran (3.9%, n = 16), anthraquinone (2.9%, n = 12) and carbendazim (2.7%, n = 11). The number of cases of intoxication dropped sharply between 2012 (n = 119) and 2016 (n = 47), except in the overseas French territories. Among the 72 serious cases (severe or life-threatening or with a fatal outcome), the most common substances involved were paraquat (n = 34), aldicarb (n = 24) and carbofuran (n = 7). This study suggests persistent use of carbamate insecticides, the existence of illegal imports of dichlorvos or paraquat-based products, and the use of certain banned fungicides in the professional agricultural sector. Information and collection campaigns are therefore essential after the withdrawal of marketing authorization for the plant protection products.

Paracetamol Misuse and Dental Pain: Results from the French Observational DAntaLor Study.

AIMS: To evaluate the risk of hepatotoxicity due to unintentional paracetamol misuse in patients with acute dental pain. METHODS: A prospective multicenter observational survey was performed in patients consulting, without appointment, the odontology departments of three main French hospitals in the Lorraine region over a 3-month period. Patients were asked to fill out a medical questionnaire while seated in the waiting room. Those who completed the questionnaire, had dental pain, and took paracetamol were included in the DAntaLor study. Misuse was defined as a daily dose of more than 4 g of paracetamol per day. The risk of hepatotoxicity was considered high if the supposed ingested dose was above the threshold of 150 mg.kg-1.24h-1, 125 mg.kg-1.24h-1, or 100 mg.kg1.24h-1 over periods of 24, 48, and 72 hours, respectively. Hepatotoxicity was suspected in the presence of clinical symptoms. RESULTS: Of the 1,810 patients consulting the odontology departments, 741 were included in the study. Painkillers were used in 74.4% of the cases, and paracetamol was taken by 81.7%. Paracetamol was self-medicated in 85.5% of the patients and misused by 6.0%. Clinical symptoms were observed in 1.6% of the patients with no paracetamol misuse. For patients consuming more than 4 g per day and experiencing mild unspecific clinical symptoms of hepatotoxicity, the suspected ingested dose category was below one of the three previously defined thresholds for 11.8% and was above for 40.0%. CONCLUSION: Patients with dental pain are at risk of paracetamol overdose and hepatotoxicity.

Severity of button batteries ingestions: data from French Poison Control Centres between 1999 and 2015.

BACKGROUND: Although the ingestion of button batteries is an infrequent situation, it leads to a significant risk of causing serious damage. OBJECTIVE: This study was carried out to describe all the cases of button battery ingestion recorded by the French Poison Control Centers over 16 years. PATIENTS AND METHODS: All the cases of button battery ingestion were recorded from 1 January 1999 to the end of June 2015, analysed (age, sex, number of ingested button batteries, clinical signs and treatments) and graded for severity according to the poisoning severity score. RESULTS: The incidence of button batteries ingestions was constant over the 16-year period, with an average of 266±98.5 cases per year and a total of 4030 cases. Nevertheless, 21 cases were severe and two deaths occurred. Interestingly, for the two patients who died, the battery was stuck in the oesophagus and they presented anorexia and/or dysphagia, abdominal pain and fever and in one case, a melena 3 weeks after ingestion. Importantly, these symptoms were observed even if the battery was expelled in one fatal case. CONCLUSION: Ingestions of button batteries still occur and may cause serious damage, especially in children, and if the button battery is stuck in the oesophagus as it might cause severe symptoms. Patients who have ingested a button battery must be directed to the emergency department for medical evaluation, even if the button battery has been expelled from the body and even more if gastrointestinal symptoms are present.

Self-poisoning with baclofen in alcohol-dependent patients: national reports to French Poison Control Centers, 2008-2013.

BACKGROUND: Alcohol use disorders are frequently associated with self-intoxication in attempted suicide. In France since 2008, the off-label use of baclofen for treatment of alcohol dependence has greatly increased, leading to temporary regulation of use of the drug. At the request of the national authorities, the French Poison Control Centers carried out a retrospective survey to give an overview of baclofen exposure in this population. METHODS: A retrospective study was carried out from January 2008 to December 2013, focusing on baclofen exposures in alcohol-dependent patients managed by the nine national French Poison Control Centers. RESULTS: 294 observations of baclofen exposures in alcohol-dependent patients were identified in our database. Of these, 220 were suicide attempts by self-poisoning and 74 were unintentional. The mean age of patients was 41.7 years, with a sex-ratio of 1.6. Patients attempting suicide with baclofen were younger than those with unintentional exposures, and 43.6% of them were women (vs 22.9%, p < 0.01). The mean supposed ingested dose was higher (480.7 mg) in patients who attempted suicide (vs 192.5 mg, p < 0.0001). 21.8% of intentional exposures involved baclofen alone. Psychiatric comorbidity (50.4%) was more frequent in the group of self-poisoning (p < 0.001). 132 patients were coded as severely exposed (60.0%). Nine victims died, but the causal link between self-poisoning with baclofen and fatal outcome should be interpreted with particular caution. CONCLUSIONS: Baclofen self-poisoning by alcohol-dependent patients is a serious concern for the French health authorities. Our results are similar to those previously published, suggesting that most patients with baclofen overdose should be admitted to an intermediate or intensive care unit as the clinical course requires close monitoring. Because suicidal ideation and suicide attempts are more prevalent in people with substance use disorders than in the general population, and because of the lack of recommendations governing baclofen prescription in such a situation, its use needs to be better controlled.

Urinary arsenic concentrations and speciation in residents living in an area with naturally contaminated soils.

A cross sectional study was carried out to evaluate arsenic exposure of residents living in an area with a soil naturally rich in arsenic (As), through urinary measurements. During the summer of 2007, 322 people aged over 7 years and resident in the study area for at least 4 days prior to the investigation were recruited. The sum of urinary inorganic arsenic and metabolites (iAs+MMA+DMA) and speciation were determined by graphite furnace atomic absorption spectrometry and high performance liquid chromatography coupled to inductively coupled plasma mass spectrometry, respectively. Geometric means levels of iAs+MMA+DMA were 3.6 microg/L or 4.4 microg/g creatinine. The percent of DMA, As(III) and MMA contribution to urinary arsenic concentrations was respectively 84.2%, 12% and 3.7%. We found significant associations between urinary arsenic concentrations and the consumption of seafood (p=0.03), the consumption of wine (p=0.03) and beer (p=0.001), respectively 3 and 4 days before the investigation. When we focus on the various species, As(V) was rarely detected and DMA is the predominant metabolite composing the majority of measurable inorganic-related As in the urine. Considering the percent of DMA contribution to iAs+MMA+DMA urinary concentrations, almost half of the subjects had 100% of DMA contribution whatever the concentration of urinary As whereas the others had a lower DMA contribution, between 39 and 90%. Arsenic levels reported in this original study in France were between 2 and 4 times lower than in other studies dealing with iAs+MMA+DMA levels associated with soil arsenic exposure. Arsenic levels were similar to those observed in unexposed individuals in European countries, although 10% were above the French guideline values for the general population.