Publications by authors named "Chaabane A"

Article Synopsis
  • - A case study reports a 48-year-old male smoker who developed pyopneumothorax after experiencing pneumonia caused by COVID-19, requiring oxygen support and antibiotic treatment.
  • - After initial recovery, he experienced hemoptysis, leading to a diagnosis of actinomycosis through endoscopic biopsy histopathology.
  • - The patient responded well to prolonged antibiotic therapy with amoxicillin, highlighting the need to consider pulmonary actinomycosis in patients displaying lasting respiratory symptoms post-COVID-19.
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Unlabelled: Introduction-Aim: The iatrogenic risk in the elderly is a real public health problem due to its frequency and seriousness. Our study aimed to analyze the epidemiological, clinical and chronological aspects of adverse drug reactions occurring in elderly subjects and to identify the incriminated drugs.

Methods: We carried out a retrospective study of all the observations of adverse drug reactions in elderly subjects, notified to the Clinical Pharmacology department of Monastir over a period of 17 years (2004 - 2020).

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  • Thiopurine drugs are used to treat conditions like inflammatory bowel disease, and their metabolism is influenced by the enzymes TPMT and ITPA.
  • This study focuses on Tunisian patients to assess how genetic factors and other variables affect the pharmacokinetics of thiopurine drugs.
  • The research found specific genetic variants and identified gender as a significant factor affecting drug variability, emphasizing the importance of TPMT testing for optimal treatment safety and efficacy.
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Sarcoidosis is a systemic granulomatosis of unknown etiology. Mediastinal lymph node and pulmonary involvement are the most characteristic manifestations. However, bone involvement is rare during sarcoidosis.

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Introduction: Human cytochrome P450 (CYP), particularly CYP3A4 and CYP3A5 is mainly responsible for the metabolism of several drugs including tacrolimus. Significant interracial/interethnic variation in the expression and function of CYP3A5 and CYP3A4 is caused by Single Nucleotide Polymorphisms (SNPs) of genes encoding these proteins.

Aim: The present study investigated the genetic polymorphisms CYP3A4*1B, CYP3A4*22, and CYP3A5*3 in the Tunisian population.

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Article Synopsis
  • * Using a nonparametric approach, the model examined how factors like age and kidney function (creatinine clearance) affected drug distribution and clearance.
  • * Results showed that the model accurately predicts vancomycin levels, highlighting the need for personalized dosing to ensure optimal effectiveness and safety for patients with varying degrees of renal impairment.
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A 62-year-old woman presented with a chronic fever and fatigue. Biological investigations showed leukocytosis and elevation of acute phase markers. Liver blood tests showed deterioration with both cholestatic and hepatocellular patterns (there were, respectively, elevations in serum alkaline phosphatase levels as well as in serum alanine and aspartate aminotransferases).

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  • A 75-year-old man had a painless, enlarging skin tumor on his abdomen that he had for 30 years.
  • The tumor appeared brownish with a warty surface, raising concerns that it could be a melanocytic tumor or verrucous carcinoma.
  • After surgical removal, pathology confirmed that the mass was actually a giant seborrheic keratosis, a benign growth.
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Clozapine is characterized by a large within- and between-patient variability in its pharmacokinetics, attributed to non-genetic and genetic factors. A cross-sectional analysis of clozapine trough concentration (Clz C0) issued from Tunisian schizophrenic patients was collected and analysed using a nonparametric modelling approach. We assessed the impact of demographic covariates (age, weight and sex), patient's habits (smoking status, alcohol and caffeine intake) and the genetic factors (CYP1A2*1C, CYP1A2*1F and CYP2C19*2 polymorphisms) on each pharmacokinetic parameter.

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Purpose: The safety profile of methimazole (MMI) seems to be better than propylthiouracil in the management of hyperthyroidism. It is therefore advisable to use IMM as the first choice in Graves' patients. It is important to keep this drug in patients regardless of minor side effects.

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Middle lobe syndrome is a rare but important clinical entity worth investigating in local obstructive or inflammatory cause. One of its rare etiologies is broncholithiasis. We report the observation of a young female patient who presented with recurrent hemoptysis.

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DRESS related to first-line antituberculosis drugs (ATD) is a challenging diagnosis. With a long-lasting combined treatment of 4-concomitantly administrated drugs, identification of the culprit drug remains difficult and may expose patients to treatment interruption and affect their outcome. A 42-year-old female, treated with isoniazid, rifampicin, pyrazinamide and ethambutol for multifocal tuberculosis, developed, 40 days later, hyperthermia, facial edema, cervical lymphadenopathy and generalized exanthema.

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Background: Drug reaction with eosinophilia and systemic symptoms (DRESS) is a severe adverse drug reaction. It is uncommon in the paediatric population and can be difficult to diagnose as its initial symptoms may mimic a viral infection.

Objective: To analyse the features of paediatric DRESS and to evaluate the interest of skin tests in identifying the causative drugs.

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Cholesterol granuloma of the breast is an infrequent benign lesion with clinical and radiological findings suggestive of cancer. Herein, we present the case of a 52-year-old woman with no significant past medical history, who presented to the outpatient department for her routine breast screening. Physical examination revealed a painless palpable nodule in the upper external quadrant of the left breast, measuring 0.

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Background: A prospective validation of pharmacokinetic population (Pk pop) of Tacrolimus (Tac) for dose adjustment in kidney transplant patients was assessed in only one study. The present study was aimed at prospectively evaluating the performance of our previously developed Tac- Pk pop model in predicting trough concentration (C0) in Tunisian kidney transplant patients.

Patients And Method: It was a prospective study including patients who had undergone kidney transplantation at Monastir-Nephrology Department.

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Article Synopsis
  • * Reported conditions include inflammatory arthritis, Guillain-Barré syndrome, and various neurological and autoimmune disorders, with no cases of autoimmune pancreatitis previously documented.
  • * This text discusses a specific case of type I autoimmune pancreatitis that may be linked to the Sputnik V vaccine.
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Purpose: Autoimmune encephalitis is a neurological emergency of new-onset altered mental status, caused by an exaggerated immune-mediated response that targets the central nervous system. Autoimmune encephalitis has become an emerging differential diagnosis, when a classical infection cannot explain neurological symptoms. Displaying overlapping clinical presentations, ranging from the insidious onset of cognitive deficiency to more severe forms of encephalopathy with refractory seizures, autoimmune encephalitis can be challenging for clinicians.

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  • Hydatid disease is a significant health issue mainly in developing countries, with cerebral cases being rare (less than 2%).
  • It occurs more often in young people, particularly children and adolescents, while in adults, it usually coexists with other conditions.
  • The case study involves a 60-year-old Tunisian man who presented with multiple hydatid cysts in the lungs, liver, and brain, showing neurological symptoms and detectable brain swelling on imaging.
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Collision tumor of the appendix is an extremely rare entity, defined as the coexistence of two independent tumors located in the same site without transitional changes. We describe in this report the case of a 75-year-old man who presented with an acute abdominal pain, nausea and vomiting. Physical examination revealed an abdominal distension with a hypogastric mass.

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