{"title":"Pattern of acute poisonings in Mashhad, Iran 1993-2000.","authors":"R Afshari, R Majdzadeh, M Balali-Mood","doi":"10.1081/clt-200042550","DOIUrl":"https://doi.org/10.1081/clt-200042550","url":null,"abstract":"Drugs and chemicals are almost easily available in Iran. Natural toxins as poisonous plants and animals also exist in most parts of the country. Therefore, acute poisonings, either intentional or accidental and also drug abuse/addiction are common in Iran. In spite of these difficulties there is no center for poison control and surveillance in this country to gather information and analyse data. The files of a systematic randomised ten percent of all hospital‐referred poisoned patients from 21 March 1993 to 20 March 2000 in Imam Reza (p) University Hospital of Mashhad (71589 cases) were screened retrospectively. Young adults (40.3%) and school children (22.9%) were the most vulnerable group. Mean age was 22.3 (S.D. 14.38) years with a minimum of less than one and a maximum of 98 years old. A female predominance was found (53.4%). Intentional poisoning was more common (54.4%) than accidental exposures (45.2%). Fourteen cases were classified as criminal poisoning. 79.7% of exposures were via ingestion, followed by dermal exposures (14.1%), and inhalation (6.2%). The majority (83.7%) of patients were from urban areas. Most patients (68.6%) were treated in the Emergency Toxicology Clinic and discharged, 19.2% were temporarily hospitalized and 11.3% were hospitalized for 24 hr. Main groups of poisons were pharmaceuticals (61.4%), chemicals (22.8%), and natural toxins (16.6%). The overall number of poisoned patients was higher in spring and summer (62.8%). In conclusion, acute poisonings, particularly self‐poisonings, are common in Iran. Since medical documentation is not routinely provided in this country the results of this retrospective study can be used for surveillance. Establishment of fluent data gathering and analysis within the local health system are challenges for the future.","PeriodicalId":17447,"journal":{"name":"Journal of toxicology. Clinical toxicology","volume":"42 7","pages":"965-75"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1081/clt-200042550","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24897187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C A Kelly, N Dhaun, W J Laing, F E Strachan, A M Good, D N Bateman
{"title":"Comparative toxicity of citalopram and the newer antidepressants after overdose.","authors":"C A Kelly, N Dhaun, W J Laing, F E Strachan, A M Good, D N Bateman","doi":"10.1081/clt-120028747","DOIUrl":"https://doi.org/10.1081/clt-120028747","url":null,"abstract":"<p><strong>Objective: </strong>To compare the toxicity of citalopram, venlafaxine, mirtazapine, and nefazadone after overdose.</p><p><strong>Methods: </strong>Two-year retrospective review of consecutive patients admitted to the toxicology unit of Edinburgh Royal Infirmary. Outcome measure included physiological variables, ECG recordings, peak creatine kinase, development of arrhythmias, seizure, tremor or agitation, and the need for admission to a critical care facility.</p><p><strong>Results: </strong>A total of 225 patients were studied. Venlafaxine was associated with a significantly higher pulse rate (p < 0.0001) and tremor (p = 0.007) than other antidepressants. Citalopram was associated with a significantly longer QT interval on ECG recording (p < 0.0001) but mean QTc durations were not significantly different between all drugs studied. No arrhythmias were recorded. Only venlafaxine and citalopram caused seizures and were associated with the need for admission to Intensive Care, but there was no significant difference between them.</p><p><strong>Conclusions: </strong>Mirtazapine and nefazadone appear safe in overdose and were associated with minimal features of neurological or cardiovascular toxicity. Citalopram is more likely to cause QT prolongation but other features of cardiovascular toxicity were uncommon. Both citalopram and venlafaxine are proconvulsants. Venlafaxine also causes more frequent features of the serotonin syndrome.</p>","PeriodicalId":17447,"journal":{"name":"Journal of toxicology. Clinical toxicology","volume":"42 1","pages":"67-71"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1081/clt-120028747","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24467184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Flumazenil--treatment or toxin.","authors":"Donna L Seger","doi":"10.1081/clt-120030946","DOIUrl":"https://doi.org/10.1081/clt-120030946","url":null,"abstract":"<p><p>Flumazenil is frequently administered to the poisoned patient. Seizures may be precipitated and resedation may occur in patients who awakened following flumazenil administration. Seizures may increase morbidity and mortality of the overdose. Benefit:Risk ratio of administering flumazenil should be determined in each overdose patient. Indications for flumazenil are limited.</p>","PeriodicalId":17447,"journal":{"name":"Journal of toxicology. Clinical toxicology","volume":"42 2","pages":"209-16"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1081/clt-120030946","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24581179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Greene Shepherd, Daniel C Keyes, Douglas J Borys, Michael D Ellis, Mark L Ryan, William A Watson
{"title":"Space shuttle Columbia disaster: utilization of poison control centers in Texas and Louisiana.","authors":"Greene Shepherd, Daniel C Keyes, Douglas J Borys, Michael D Ellis, Mark L Ryan, William A Watson","doi":"10.1081/clt-120039545","DOIUrl":"https://doi.org/10.1081/clt-120039545","url":null,"abstract":"","PeriodicalId":17447,"journal":{"name":"Journal of toxicology. Clinical toxicology","volume":"42 4","pages":"389-90"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1081/clt-120039545","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40899274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Uttam Garg, C Clinton Frazee, David Scott, Gary Wasserman
{"title":"Comprehensive toxicology drug screening data in a pediatric population.","authors":"Uttam Garg, C Clinton Frazee, David Scott, Gary Wasserman","doi":"10.1081/clt-200026977","DOIUrl":"https://doi.org/10.1081/clt-200026977","url":null,"abstract":"","PeriodicalId":17447,"journal":{"name":"Journal of toxicology. Clinical toxicology","volume":"42 5","pages":"681-3"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1081/clt-200026977","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40900208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Subject Index to Abstracts","authors":"","doi":"10.1081/clt-200028849","DOIUrl":"https://doi.org/10.1081/clt-200028849","url":null,"abstract":"","PeriodicalId":17447,"journal":{"name":"Journal of toxicology. Clinical toxicology","volume":"30 1","pages":"575 - 578"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77494993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dipyrone overdose.","authors":"Yedidia Bentur, Omri Cohen","doi":"10.1081/clt-120037425","DOIUrl":"https://doi.org/10.1081/clt-120037425","url":null,"abstract":"<p><strong>Background: </strong>Dipyrone is a pyrazolone derivative used as an analgesic and antipyretic. Agranulocytosis, dipyrone's most serious and potentially fatal adverse effect, has led to its withdrawal in several countries. However, agranulocytosis is subject to geographical variability, ratio with at risks ranging from 0.8-23.7. In many countries dipyrone is still widely used in adults and children and even as an over-the-counter (OTC) preparation. Information on the effects of dipyrone overdose is scanty.</p><p><strong>Objective: </strong>To determine the demographic and clinical characteristics of dipyrone overdose.</p><p><strong>Methods: </strong>Retrospective review of prospectively collected poison center data on acute exposure to dipyrone over a three-year period. The data were subjected to descriptive analysis. Mann-Whitney test and Chi-square analysis were performed where relevant.</p><p><strong>Results: </strong>A total of 243 records met the inclusion and exclusion criteria. Median age was 17y (4m-83y), median amount 5 g (250 mg-45 g), and median time to consultation was 2 h (5 min-48 h). Toxic events (49) occurred in 39 (16%) patients; 57% of these were gastrointestinal and all were mild. Time to consultation was longer in the symptomatic patients (4 h vs. 1.5 h, respectively, p=0.001) and in children (8 h vs. 3.5 h in adults). Suicidal patients ingested significantly larger amounts (8 g vs. 3.7 g, respectively, p=0.001), as did patients with gastrointestinal symptomatology (7.5 g vs. 5 g in asymptomatics, p=0.001). No agranulocytosis was reported.</p><p><strong>Discussion: </strong>Dipyrone overdose is associated with mild, mainly gastrointestinal toxicity; this was noted at a median dose of 7.5 g. Early gastrointestinal decontamination may have prevented toxicity. The suggested treatment includes gastrointestinal decontamination (if <1 h since ingestion) and supportive measures.</p>","PeriodicalId":17447,"journal":{"name":"Journal of toxicology. Clinical toxicology","volume":"42 3","pages":"261-5"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1081/clt-120037425","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24677035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}