Faculty of Medicine

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    From unknown poisoning to carbamazepine poisoning
    (2023-06)
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    Andon Chibishev
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    Niko Bekarovski
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    Biljana Ivanova
    In the 2020 annual report of the American Association of Poison Control Centers, 2562 toxic exposures to carbamazepine have been reported, 908 resulted in hospitalization, and among these about 5-6% were life-threatening or resulted in significant disability. A 15-year-old female patient was brought under suspicion of alcohol poisoning. The result of alcoholemia was 11.0 mg/dL and the toxicological screening for THC, opiates, methadone, tramadol, amphetamine, MDMA, cocaine, benzodiazepines, buprenorphine was negative. At admission she was comatose (GCS=6), with metabolic acidosis, hypotension, rare short-term partial seizures, isochoric and later dilated pupils, body temperature was 36.4°C, with oxygen saturation from 89 up to 93%. Toxicological analysis were immediately extended. After three hours of admission, a result was obtained where the plasma concentration for carbamazepine was 167mmol/L. The patient was quickly prepared for hemodialysis which was performed for four hours. After 8 hours of admission the patient woke up with stable vital parameters.
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    FATAL ACUTE SELF-POISONING WITH ONE PHOSTOXIN TABLET – A CASE REPORT
    (2023-05)
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    Niko Bekarovski
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    Andon Chibishev
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    Aluminum phosphide (AlP) is well known as an effective pesticide for grain preservation, but also as a suicidal agent due to its high human toxicity. Phosphine gas (PH3), which is released in contact with stomach acid, is responsible for systemic toxicity and high mortality. We report the first case of severe intentional AlP poisoning treated in our clinic with a fatal outcome and review the therapeutic modalities. A 35-year-old woman with a history of epilepsy was admitted to the University Clinic for Toxicology two hours after the intentional ingestion of a phostoxin (AlP) tablet. She presented with vomiting, abdominal pain, leukocytosis, ECG changes (prolonged PT interval, inverted T waves in D3, AVF, and left precordial leads), hypotension (80/40 mmHg, heart rate 120/min) and respiratory failure, after which she was transferred to the ICU. Signs of hepatic lesion, rhabdomyolysis, renal failure and metabolic acidosis (pO2 9.6 kPa, pCO2 4.14 kPa, pH 7.15, bicarbonate 11 mmol/L, BE -15) were noted. Despite the application of mechanical ventilation, fluid supplementation and inotropic support, hemodynamic instability worsened. Cardiopulmonary resuscitation was performed three times, but unfortunately the patient had a fatal outcome on the fourth day of hospitalization. Freshly opened phostoxin tablets (3 g) are very toxic, and the dose of AlP they contain is sufficient to cause progressive life-threatening symptoms and a fatal outcome. In the absence of antidote, consensus on treatment and elucidated mechanisms of toxicity, the key to treatment is rapid decontamination and initiation of resuscitation measures.
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    TROPONIN I VISOKE OSETLJIVOSTI I DUŽINA BORAVKA U BOLNICI KOD AKUTNO OTROVANIH PACIJENATA SA RABDOMIOLIZOM
    (2023-05)
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    Niko Bekarovski
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    Andon Chibishev
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    Cardiac troponins (cTn) are regulatory proteins that play a pivotal role in the interaction between actin and myosin, controlling the contraction and relaxation of skeletal and cardiac muscle. The high-sensitivity cardiac troponin I assay is not entirely specific for myocardial injury. The aim is to determine the role of hs–TroponinI on the hospital length of stay in patients with rhabdomyolysis acutely intoxicated with psychotropic and chemical substances. In a clinically controlled prospective study, 140 patients with rhabdomyolysis were divided into two groups depending on the intoxicating substance (psychotropic or chemical). Rhabdomyolysis was defined as a creatine kinase (CK)>250 U/L according to the poisoning severity score (PSS). We analyze hs–TroponinI in both groups upon admission. In patients with rhabdomyolysis in the group of psychotropic intoxications, the level of hs-TnI on admission significantly affected the length of hospitalization in 17.7% (R2 = 0.177). Increasing the value of the hs-TnI level per unit on admission increased the length of hospital stay by an average of 0.016 days. In patients with rhabdomyolysis in the chemical intoxication group, the hs-TnI level on admission has no influence on the hospital length of stay (R2 = 0.000). The increased hs-TnI level on the first day did not affect the hospital length of stay variability. In patients with rhabdomyolysis acutely intoxicated with psychotropic substances, hs-Tn I can be used to predict the length of hospital stay
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    CANNABIS AND AMPHETAMINE USE IN PATIENTS ON BUPRENORPHINE MAINTENANCE TREATMENT
    (2023-05)
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    Niko Bekarovski
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    Andon Chibishev
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    Polydrug abuse is a known problem among patients on opioid maintenance treatment. Objective is to assess the profile of patients on buprenorphine substitution treatment who use cannabis, amphetamine or cannabis and amphetamine in parallel. This study was conducted in 2021 year at University Clinic for toxicology, Skopje and has a prospective cohort design that included 112 patients with opioid use disorder on buprenorphine maintenance treatment. The data were collected according to a previously designed self-administered questionnaire adapted according to the “treatment demand indicator”. The following variables were analyzed: gender, age, duration of opioid use disorder, route of administration, duration of buprenorphine treatment, buprenorphine dose, cannabis and amphetamine use. The majority of patients were male (88.4%). The mean age of patients was 38.7±4.3 years. The average duration of opioid use disorder was 16.8±6.8 years; the duration of buprenorphine treatment was 6.3±3.3 years; buprenorphine dose was 12.5±4.9mg. Parallel use of buprenorphine with cannabis was declared in 43.7% of the patients and they were significantly younger compared to others (p=0.014). A combination of buprenorphine with amphetamine was used in 14.3% with significantly younger ages compared to others (p=0.003). Buprenorphine with both cannabis and amphetamine was practiced in 15.2% of the patients. No significant correlation was found between other variables of the studied group and the parallel use of cannabis and amphetamine. Almost half of the patients on buprenorphine substitution treatment reported parallel use of cannabis. The patients who declared parallel use of cannabis and amphetamines were of younger age compared to others.
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    The Role of Urgent Esophagogastroduodenoscopy in Prognosis of Acute Caustic Poisonings
    (Academy of Medical Sciences of Bosnia and Herzegovina, 2011)
    Andon Chibishev
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    Vesna Chibisheva
    Introduction: Ingestion of corrosive substances causes severe lesions to the upper gastrointestinal tract. The aim of this paper was to present our clinical experience with the 4-grade endoscopic classification of post-corrosive injuries in prognosis of the outcome in acute caustic poisonings. Material and methods: This was a retrospective study comprising 33 patients with grade II B and III injury hospitalized at the University Clinic for Toxicology in Skopje, Republic of Macedonia in the period 2008-2009. The grade of injury was determined with urgent esophagogastroduodenoscopy performed in the first 12-24 hours. After treatment the patients were followed for a minimum of six months. Results: A total of 33 patients were analyzed. At the time of hospital admission post-corrosive injuries of grade III predominated (n=22, 66.67%) and post-corrosive injuries of grade II B (n=11, 33.33%). The most common late postcorrosive complications of the esophagus was stenosis esophagei (n=19, 57.58%). The most common post-corrosive damages of the stomach were: stenosis antropylori (n=10, 30.30%), stenosis pylori (n=6, 18.18%) and stenosis antri (n= 3, 9.09%). Conclusion: Urgent esophagogastroduodenoscopy has to be done in all acute caustic poisonings in the first 12-24 hours and they are to be classified according to Kikendall’s four-grade classification. The classification in four grades of post-corrosive injuries to the upper gastrointestinal tract might help in therapeutic approach and prognosis of the outcome
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    Corrosive poisonings in adults
    (ScopeMed Publishing, 2012)
    Andon Chibishev
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    Vesna Chibisheva
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    Ingestion of corrosive substances may cause severe to serious injuries of the upper gastrointestinal tract and the poisoning can even result in death. Acute corrosive intoxications pose a major problem in clinical toxicology since the most commonly affected population are the young with psychic disorders, suicidal intent and alcohol addiction. The golden standard for determination of the grade and extent of the lesion is esophagogastroduodenoscopy performed in the first 12-24 hours following corrosive ingestion. The most common late complications are esophageal stenosis, gastric stenosis of the antrum and pyloris, and rarely carcinoma of the upper gastrointestinal tract. Treatment of the acute corrosive intoxications include: neutralization of corrosive agents, antibiotics, anti-secretory therapy, nutritional support, collagen synthesis inhibitors, esophageal dilation and stent placement, and surgery.
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    Program of the University Clinic of Toxicology, Skopje, Republic of Macedonia in treatment of drug addiction (buprenorfin treatment protocol)
    (ScopeMed Publishing, 2011)
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    Andon Chibishev
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    Irena Jurukov
    The program of our Clinic includes, not only treatment of acute intoxication with opioids and other drugs, but also comprehends clinical investigations and treatment of the somatic complications of this population. For the first time in our country our Clinic offers to this population the alternative way of treatment with Buprenorfin. The Clinic started with this protocol on August 1, 2009. During a period of two years, the treatment with Buprenorfine has been initiated in 353 patients, of which 211 regularly attend the medical check ups. This model is used according to the national clinical guidelines and procedures for the use of buprenorfine in the treatment of opioid dependence The dose of this medicament depends on the evolution of the withdrawal symptoms. We have used the objective and subjective opioid withdrawal scale for the observation of these symptoms (OOWS ; SOWS - Handelsman et al 1987). This protocol starts with a complete clinical investigations, (i.e. where all patients undergo the inclusion and exclusion criteria with a written consent). Afterwards, the patients are hospitalized and start with a Buprenorfin teratment. After period of 7-10 days hospitalization they come to our Clinic, like outpatients for a regular controls. We have precise evidence for every patient who comes for control (e.g. medical record with all biochemical and toxicological screenings). All patients are recommended a tight cooperation with psychiatrists who are specialized to treat the problematic drug addictions.
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    Heroin dependence duration influences the metabolic parameters: mechanisms and consequences of impaired insulin sensitivity in hepatitis C virus seronegative heroin dependents
    (Hagerstown, MD : Lippincott Williams & Wilkins, 2012-12)
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    Cvetanka Bozinovska
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    Cedo Dimitrovski
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    Koco Cakalarovski
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    Andon Chibishev
    Carbohydrate metabolism disorder in heroin dependence is an issue with long history and contradicting results. The aim of the study was to evaluate basal insulin sensitivity in hepatitis C virus seronegative heroin dependents with normal body mass index, taking into consideration the duration of heroin dependence.
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    The Presence of Some Humoral Immunologic Indicators and Clinical Manifestations in Cryoglobulin Positive Heroin Addicts without Evidence of Hepatitis Virus Infection
    (2015-05)
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    Andon Chibishev
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    Cvetanka Bozinovska
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    SUMMARY Introduction Cryoglobulins are single or mixed immunoglobulins that are subject to reversible precipi￾tation at low temperatures. Objective The aims of this paper were: 1. Comparison of cryoglobulin positive (CP), cryoglobulin nega￾tive (CN) heroin addicts and the control group (CG) in terms of serum immunoglobulins IgG, IgA and IgM and complement components C3 and C4; 2. Comparison of CP and CN heroin addicts in terms of rheumatoid factor (RF) and circulating immune complexes (CIC); 3. Assessment of clinical manifestations in CP heroin addicts. Methods This is a comparative study of cases (outpatients) treated at the University Clinic of Toxicology in Skopje over 3.5 years, from January 2009 to June 2012. In this study 140 heroin addicts without HbsAg were examined, seronegative for HCV and HIV infections. They were divided into 2 groups: 70 CP and 70 CN heroin addicts. A previously designed self-administered questionnaire was used as a data source on participants. All heroin addicts underwent the following analyses: urea and creatinine in serum; creati￾nine in urine; proteinuria; 24-hour proteinuria; IgM, IgG, IgA, C3, C4 ; RF; CIC; creatinine clearance; ECG; toxicological analyses for opioids in a urine sample; cryoglobulins. In addition to these 2 groups, IgG, IgA, IgM, C3 and C4 were also examined in 70 healthy subjects (CG). Results The study showed that there was no statistically significant difference between CP, CN heroin ad￾dicts and CG regarding the concentration of IgA, IgG, IgM, C3 and C4, and between CP and CN regarding the concentration of CIC. There was significant difference between CP and CN regarding the concentra￾tion of RF. The following conditions were significantly more frequently manifested in CP than in CN heroin addicts: arthralgia, Raynaud’s phenomenon, respiratory difficulties, neurological disorders, manifested skin changes, hematuria, 24-hour proteinuria levels, and decreased renal clearance. Conclusion There were no differences in concentrations of IgG, IgA, IgM, C3, C4 and CIC, while there was a difference in concentration of RF between CP and CN heroin addicts. Clinical manifestations (arthralgias, Raynaud’s phenomenon, respiratory, neurologic, renal disorders and skin changes) were more common in CP heroin addicts.