Scorpion StingsNCT04571411
Severity of Scorpion Sting in Relation to Hematological Parameters
An observational study of Scorpion Stings, run by Assiut University.
Trial summary
The aim of this study is to investigate the relationship between severity of envenomation and hematological parameter by detectig initial mean platelet volume (MPV), neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) in pediatric patients presenting with a scorpion sting. Read more about this study
- Who is it for?
- Ages 0 months to 18 years
- Conditions the study is for
- Scorpion Stings
- What is being tested?
- CBC
- How many people
- 100 participants
- Where
- No sites listed yet
- Study dates
- 1 Dec 2020to 1 Sep 2023
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 0 months to 18 years
- All sexes
- No healthy volunteers
- Child, Adult
Study population: study on children stung by scorpion
Who may be able to join
- a) Patients presented with scorpion sting
Who cannot join
- All other envenomation or intoxications
Trial locations and contacts
No sites are listed yet.
Azza Ahmed Eltayeb, professor contact
About this study
The aim of this study is to investigate the relationship between severity of envenomation and hematological parameter by detectig initial mean platelet volume (MPV), neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) in pediatric patients presenting with a scorpion sting.
Read the detailed description
Scorpion stings are common emergency events in many parts of the world. It is common in tropical and subtropical regions. In our locality, Upper Egypt, scorpions still represent and a life hazard, especially to children .The clinical manifestations of scorpionism are due to complex interactions between sympathetic and parasympathetic stimulation.This leads to increased release of neurotransmitters and mediators, resulting in a cascade of pathological events, involving the nervous system, the cardiovascular and the respiratory system, eventually leading to death.Scorpionism results in hormonal and biochemical changes with significant release of catecholamines, increased angiotensin II and inhibition of insulin secretion .The symptoms and signs of envenomation are usually more severe in children, especially younger ones. Local pain represent 66 to 90 percent of stings which is practically immediate, of varying intensity ranging from mild to very intense. It is characterized by tingling, burning, or stinging. Regardless of the severity of envenoming, pain and paresthesia may persist at the site or at the affected limb for several days .Systemic effects become apparent in 10 to 33 percent of patients.After envenomation, symptoms may begin immediately and typically progress to maximum severity within 5 hours. The clinical effects of stings are characterized, cardiovascular, neurological and gastrointestinal effects .Cardiovascular effects are atrial tachycardia, ventricular extrasystoles, T-wave inversion, ST-T wave changes, bundle-branch block. Catecholamine-induced myocarditis and myocardial ischemia results in pulmonary edema and cardiogenic shock.Cardiovascular effects are atrial tachycardia, ventricular extrasystoles, T-wave inversion, ST-T wave changes, bundle-branch block. Catecholamine-induced myocarditis and myocardial ischemia results in pulmonary edema and cardiogenic shock..Gastrointestinal effects: are vomiting, abdominal pain and diarrhea. Also acute pancreatitis has been reported.Cardiovascular toxic effects and acute pulmonary edema are the most important complications of scorpion stings and the most frequent cause of death in the first 24 hours after the sting .Gastrointestinal effects: are vomiting, abdominal pain and diarrhea. Also acute pancreatitis has been reported.Cardiovascular toxic effects and acute pulmonary edema are the most important complications of scorpion stings and the most frequent cause of death in the first 24 hours after the sting .
- Conditions
- Scorpion Stings
- Being tested
- CBC
- Medical subject headings
- Scorpion Stings
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CBCOther
The aim of this study is to investigate the relationship between severity of envenomation and hematological parameter by detectig initial mean platelet volume (MPV), neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) in pediatric patients presenting with a scorpion sting.
What is being measured
The primary outcome is the main question the study is designed to answer.
The aim of this study is to investigate the relationship between severity of envenomation and hematological parameter
All patient will be conducted to:
- full history including: (Age, gender, weight, time and date of presentation
- Full examination including : local
General Cardiac examination Chest examination
Measured: baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Oct 2020
- Study start1 Dec 2020 (estimated)
- Primary completion1 Mar 2023 (estimated)
- Study completion1 Sep 2023 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (8)Papers the sponsor has linked to this study.
- Other trials for Scorpion StingsStudies of the same condition, open and under way.
- More trials run by Assiut UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Other
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Assiut University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Sarah Osama Mohamed, Assiut University
- Investigators
- Yasser Gamal Abl Elrahman, lecture, Principal investigator, Assiut University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04571411
- Sponsor's protocol ID
- scorpion sting in children
- Status last verified
- Oct 2020
- First submitted
- 25 Sep 2020
- Last updated
- 14 Oct 2020
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Adiguzel S, Ozkan O, Inceoglu B. Epidemiological and clinical characteristics of scorpionism in children in Sanliurfa, Turkey. Toxicon. 2007 May;49(6):875-80. doi: 10.1016/j.toxicon.2006.12.012. Epub 2007 Jan 10.
PubMed 17286998Shamoon Z, Peterfy RJ, Hammoud S, Khazaeni B. Scorpion Toxicity. 2023 Aug 8. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Available from http://www.ncbi.nlm.nih.gov/books/NBK430928/
PubMed 28613678Chippaux JP. Estimating the global burden of snakebite can help to improve management. PLoS Med. 2008 Nov 4;5(11):e221. doi: 10.1371/journal.pmed.0050221.
PubMed 18986211Ahmed AE, Abdel-Baseer KA, Saad K, Hassan AF, El-Houfey AA. Endocrinological and biochemical changes of scorpionism in children in Upper Egypt. Ther Adv Endocrinol Metab. 2015 Oct;6(5):210-6. doi: 10.1177/2042018815593034.
PubMed 26445643Ait Laaradia M, El Hidan MA, Marhoume F, Bouimeja B, Oufquir S, Sokar Z, Boumezzough A, Chait A. Buthus lienhardi venom and pathophysiological effects at the histological, hematological, biochemical and motor skills levels. Toxicon. 2018 May;146:106-113. doi: 10.1016/j.toxicon.2018.03.001. Epub 2018 Mar 9.
PubMed 29526539Horoz OO, Yildizdas D, Aslan N, Gokay SS, Ekinci F, Erdem S, Haytoglu Z, Sertdemir Y, Yilmaz HL. Is there any relationship between initial hematological parameters and severity of scorpion envenomation? Turk J Pediatr. 2020;62(3):394-404. doi: 10.24953/turkjped.2020.03.006.
PubMed 32558413Cupo P. Clinical update on scorpion envenoming. Rev Soc Bras Med Trop. 2015 Nov-Dec;48(6):642-9. doi: 10.1590/0037-8682-0237-2015.
PubMed 26676487Chippaux JP. Management of scorpion stings in Africa and the Mediterranean region. Med Sante Trop. 2016 May 1;26(2):130-3. doi: 10.1684/mst.2016.0571.
PubMed 27412972
Study at a glance
From the registry record, last updated by the sponsor on 14 Oct 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Severity of Scorpion Sting in Relation to Hematological Parameters
- ClinicalTrials.gov ID
- NCT04571411
- Acronym / sponsor ID
- scorpion sting in children
- Conditions
- Scorpion Stings
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Assiut UniversityUniversity, hospital or other
- Study start
- 1 Dec 2020 (estimated)
- Primary completion
- 1 Mar 2023 (estimated)
- Study completion
- 1 Sep 2023 (estimated)
- First posted
- 1 Oct 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study is to investigate the relationship between severity of envenomation and hematological parameter by detectig initial mean platelet volume (MPV), neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) in pediatric patients presenting with a scorpion sting.
Detailed description
Scorpion stings are common emergency events in many parts of the world. It is common in tropical and subtropical regions. In our locality, Upper Egypt, scorpions still represent and a life hazard, especially to children .The clinical manifestations of scorpionism are due to complex interactions between sympathetic and parasympathetic stimulation.This leads to increased release of neurotransmitters and mediators, resulting in a cascade of pathological events, involving the nervous system, the cardiovascular and the respiratory system, eventually leading to death.Scorpionism results in hormonal and biochemical changes with significant release of catecholamines, increased angiotensin II and inhibition of insulin secretion .The symptoms and signs of envenomation are usually more severe in children, especially younger ones. Local pain represent 66 to 90 percent of stings which is practically immediate, of varying intensity ranging from mild to very intense. It is characterized by tingling, burning, or stinging. Regardless of the severity of envenoming, pain and paresthesia may persist at the site or at the affected limb for several days .Systemic effects become apparent in 10 to 33 percent of patients.After envenomation, symptoms may begin immediately and typically progress to maximum severity within 5 hours. The clinical effects of stings are characterized, cardiovascular, neurological and gastrointestinal effects .Cardiovascular effects are atrial tachycardia, ventricular extrasystoles, T-wave inversion, ST-T wave changes, bundle-branch block. Catecholamine-induced myocarditis and myocardial ischemia results in pulmonary edema and cardiogenic shock.Cardiovascular effects are atrial tachycardia, ventricular extrasystoles, T-wave inversion, ST-T wave changes, bundle-branch block. Catecholamine-induced myocarditis and myocardial ischemia results in pulmonary edema and cardiogenic shock..Gastrointestinal effects: are vomiting, abdominal pain and diarrhea. Also acute pancreatitis has been reported.Cardiovascular toxic effects and acute pulmonary edema are the most important complications of scorpion stings and the most frequent cause of death in the first 24 hours after the sting .Gastrointestinal effects: are vomiting, abdominal pain and diarrhea. Also acute pancreatitis has been reported.Cardiovascular toxic effects and acute pulmonary edema are the most important complications of scorpion stings and the most frequent cause of death in the first 24 hours after the sting .
Study design
- Observational model
- Cohort
- Time perspective
- Other
Who may qualify
- Ages
- 0 months to 18 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
- Study population
- study on children stung by scorpion
Key inclusion criteria (1 listed)
- a) Patients presented with scorpion sting
Key exclusion criteria (1 listed)
- All other envenomation or intoxications
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| CBCThe aim of this study is to investigate the relationship between severity of envenomation and hematological parameter by detectig initial mean platelet volume (MPV), neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) in pediatric patients presenting with a scorpion sting. | Other | – |
Primary outcome
The aim of this study is to investigate the relationship between severity of envenomation and hematological parameter
Time frame: baseline
All patient will be conducted to: 1. full history including: (Age, gender, weight, time and date of presentation 2. Full examination including : local General Cardiac examination Chest examination
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Oct 2020.
- Results publication: PubMed 17286998Adiguzel S, Ozkan O, Inceoglu B. Epidemiological and clinical characteristics of scorpionism in children in Sanliurfa, Turkey. Toxicon. 2007 May;49(6):875-80. doi: 10.1016/j.toxicon.2006.12.012. Epub 2007 Jan 10.
- Results publication: PubMed 28613678Shamoon Z, Peterfy RJ, Hammoud S, Khazaeni B. Scorpion Toxicity. 2023 Aug 8. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Available from http://www.ncbi.nlm.nih.gov/books/NBK430928/
- Results publication: PubMed 18986211Chippaux JP. Estimating the global burden of snakebite can help to improve management. PLoS Med. 2008 Nov 4;5(11):e221. doi: 10.1371/journal.pmed.0050221.
- Results publication: PubMed 26445643Ahmed AE, Abdel-Baseer KA, Saad K, Hassan AF, El-Houfey AA. Endocrinological and biochemical changes of scorpionism in children in Upper Egypt. Ther Adv Endocrinol Metab. 2015 Oct;6(5):210-6. doi: 10.1177/2042018815593034.
- Results publication: PubMed 29526539Ait Laaradia M, El Hidan MA, Marhoume F, Bouimeja B, Oufquir S, Sokar Z, Boumezzough A, Chait A. Buthus lienhardi venom and pathophysiological effects at the histological, hematological, biochemical and motor skills levels. Toxicon. 2018 May;146:106-113. doi: 10.1016/j.toxicon.2018.03.001. Epub 2018 Mar 9.
- Results publication: PubMed 32558413Horoz OO, Yildizdas D, Aslan N, Gokay SS, Ekinci F, Erdem S, Haytoglu Z, Sertdemir Y, Yilmaz HL. Is there any relationship between initial hematological parameters and severity of scorpion envenomation? Turk J Pediatr. 2020;62(3):394-404. doi: 10.24953/turkjped.2020.03.006.
- Results publication: PubMed 26676487Cupo P. Clinical update on scorpion envenoming. Rev Soc Bras Med Trop. 2015 Nov-Dec;48(6):642-9. doi: 10.1590/0037-8682-0237-2015.
- Results publication: PubMed 27412972Chippaux JP. Management of scorpion stings in Africa and the Mediterranean region. Med Sante Trop. 2016 May 1;26(2):130-3. doi: 10.1684/mst.2016.0571.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Azza Ahmed Eltayeb, professor contact
Yasser Gamal Abl Elrahman, lecture principal investigator
Assiut University
Questions about this trial
What is this clinical trial studying?
An observational study of Scorpion Stings, run by Assiut University.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 14 Oct 2020. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Sarah Osama Mohamed, master (01026662002, saso_monier_2020@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The aim of this study is to investigate the relationship between severity of envenomation and hematological parameter (time frame: baseline). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04571411, which also lists 8 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Oct 2020.