Adverse Effects

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  • Salman Khan, Ekrem Yetiskul, Malik Waleed Zeb Khan, Gabriel Chavez Reyna, Amanda Matra, George Khattar, Marcel A. Odaimi
    Views: 578
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    Introduction: During treatment for malignant lymphoma, cytopenia can develop for several reasons. This can range from mild cytopenias leading to infection and bleeding to full-blown drug-induced aplastic anaemia. While aplastic anaemia affects individuals of all genders and ages, here, we describe aplastic anaemia after chemotherapy exposure to bendamustine in a 65-year-old female with non-Hodgkin’s lymphoma.
    Case description: A 65-year-old woman with recurrent indolent marginal zone lymphoma and post-chemotherapy with bendamustine and rituximab, presented with a neutropenic fever and was admitted with a leading diagnosis of sepsis. In the previous two weeks, the patient required regular transfusions of packed red blood cells and platelets and maintained a daily ZARXIO® regimen. Laboratory results revealed pancytopenia, and broad-spectrum antibiotics (cefepime/vancomycin) were given. The patient was subsequently admitted to the hospital under the care of the haematology/oncology team and was ultimately diagnosed with aplastic anaemia, likely as a consequence of bendamustine chemoimmunotherapy. She elicited a positive response to the triple immunosuppressive therapy (IST) regimen (two immunotherapeutic agents plus one anti-thymocyte globulin (ATG), after which her cell counts returned to normal.
    Conclusions: This case underscores the importance of recognising haematologic complications linked to bendamustine and advocates for further research to increase the understanding among healthcare professionals of drug-induced aplastic anaemia. Bendamustine can cause severe autoimmune haemolytic anaemia and aplastic anaemia and may require multiple transfusions and a multidrug regimen for treatment. The use of ATG as a therapeutic intervention is appropriate because it has been effective in treating aplastic anaemia.

  • Ekrem Yetiskul, Aqsa Nisar, Salman Khan, Faris Qaqish, Danyal Khan, Alexander Bershadskiy
    Views: 360
    HTML: 17 PDF: 238

    Anagrelide is a medication primarily used to manage thrombocytosis, an abnormal increase in platelet levels in the blood. It is often prescribed for patients with myeloproliferative disorders, such as essential thrombocythaemia (ET). Given the heightened susceptibility to thromboembolism associated with this condition, the primary emphasis in treatment revolves around reducing the risk of thrombotic events through the administration of cytotoxic agents. While anagrelide is generally effective in reducing platelet counts, it comes with potential side effects, including an increased risk of certain thrombotic events. Anagrelide acts by inhibiting megakaryocyte maturation and platelet release, thereby reducing platelet production. However, this platelet-lowering effect may be accompanied by an increase in platelet activation and reactivity, which could contribute to a prothrombotic state. We present a case of a 60-year-old female with a history of ET, managed with anagrelide and hydroxyurea therapy, who experienced an acute ST-elevation myocardial infarction.

  • Yuta Yoshino, Ken Tsuboi
    Views: 255
    HTML: 41 PDF: 203

    Introduction: Large-scale clinical studies for COVID-19 vaccines have shown the infection-preventing effect and short-term adverse effects. Some rare illnesses such as eosinophilia can develop following COVID-19 vaccinations.
    Case description: We report a case of 65-year-old man with unexplained abdominal pain that developed 2 weeks after COVID-19 mRNA vaccination. The patient had received a second dose of COVID-19 mRNA vaccine and revealed eosinophilia at the first visit to our hospital. Eosinophil infiltration was observed in the lamina propria of the duodenum by a step biopsy. Montelukast 10 mg was administered as the initial treatment of eosinophilic gastroenteritis (EGE), and the abdominal pain was improved.
    Discussion: The strong influence of COVID-19 vaccination on the development of EGE remains unproven. Reports of eosinophilia following COVID-19 vaccination have discussed that COVID-19 mRNA vaccination triggered an eosinophilic response.
    Conclusion: This case presented EGE that developed following COVID-19 mRNA vaccination, which would be a rare adverse event.

  • Edward K. Sarfo, Jennifer L. Dziemianko, Thomas Chen, Kosuke K. Iwaki
    Views: 259
    HTML: 65 PDF: 238

    Ertapenem, a carbapenem-type beta-lactam antibiotic, demonstrates broad-spectrum efficacy against a wide range of Gram-positive and Gram-negative bacteria, including aerobes and anaerobes. Importantly, it demonstrates resistance to virtually all beta-lactamases, including the extended spectrum beta-lactamases (ESBLs). Haematologic complications such as thrombocytosis, haemolysis, anaemia, and neutropenia are infrequent side effects associated with this drug. In this report, we present a rare case of ertapenem-induced thrombocytosis in a 62-year-old female patient who was admitted for a complicated urinary tract infection caused by Escherichia coli.

  • Miguel Franco-Álvarez, Iván Fernández-Castro, Mariño Francisco Fernández Cambeiro, Carmen Beceiro Abad, Esteban Otero Antón, Sandra Rodríguez López, María Dolores Calvo Barbeito, Ignacio Novo-Veleiro
    Views: 416
    HTML: 51 PDF: 274

    Background: Rhodococcus equi is a Gram-positive microorganism that causes infections, particularly in immunocompromised patients. Treatment duration can be prolonged. While vancomycin is an effective drug in this scenario, its use may lead to renal damage. Studies have shown that continuous vancomycin infusion appears to be a safe strategy in terms of adverse effects compared to bolus administration.
    Case description: We present the case of a 71-year-old female liver transplant recipient. After being diagnosed with a mediastinal infection caused by Rhodococcus equi with poor response to initial therapy, she required 12 months of continuous intravenous domiciliary infusion of vancomycin combined with oral levofloxacin and rifampicin. There was no drug-related complication throughout the follow-up.
    Conclusions: The use of continuous vancomycin infusion has emerged as a safer, more efficient, and cost-effective alternative to intermittent administration. We want to emphasise the uniqueness of this case, where despite the unprecedented treatment duration, no adverse effects occurred.

  • Hussain Hussain, Sohair Angly, George Michel, Efrain Garcia, Aya Fadel
    Views: 526
    HTML: 102 PDF: 218

    Krokodil, the street name for desomorphine, has emerged as a deadly and alarming drug phenomenon in recent years. This report delves into the intricate relationship between krokodil abuse, its adverse effects on the skin and its profound impact on cardiovascular events. Our patient developed a non-healing cutaneous ulceration associated with an acute onset of cardiac arrhythmia, as well as bilateral upper extremity acute deep-vein thrombosis.

  • Ariella Tvivo, Ariel Rokach, Eliel Ben-David, Moshe Simons, Samuel Noam Heyman
    Views: 347
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    Introduction: Intracranial haemorrhage may complicate infective endocarditis, caused by ruptured mycotic aneurysms or haemorrhagic transformation of brain septic emboli. The risk of intracranial bleeding may increase with the use of non-steroidal anti-inflammatory agent (NSAIDs).
    Case description: We report on a 53-year-old male patient with a past history of intravenous drug abuse, who was treated with diclofenac (75 mg IM) for a few hours of preceding fever and arthralgia. Seven hours later he was hospitalised with impaired consciousness and hemiparesis. Evaluation revealed multiple intracranial haemorrhages, at least one originating from a mycotic aneurysm. Repeated blood cultures grew methicillin-resistant Staphylococcus aureus (MRSA), and echocardiography revealed a vegetation on the mitral valve, establishing the diagnosis of bacterial endocarditis.
    Conclusion: The abrupt simultaneous multifocal intracranial bleeds shortly following the administration of NSAIDs for a few hours of febrile disease, one clearly originating from a mycotic aneurism, are exceptional. This raises a possibility of a role for diclofenac the intracranial bleeding diathesis in this unique clinical presentation. Intracranial haemorrhage in the set-up of undiagnosed infective endocarditis (IE) might be added to the long list of potential adverse outcomes of NSAID administration, and the possibility of IE should be considered before their administration for febrile disease of undetermined cause.

  • Gi Eun Kim, Soubiya Ansari, Ateeque Ali, Ehab Adams, Mugahid Eltahir
    Views: 512
    HTML: 94 PDF: 559

    Background: Linezolid is known to cause side effects, including nausea, diarrhea, and headaches of short duration. As extended use of linezolid is becoming more common, additional rare side effects should be considered.
    Case Presentation: A 68-year-old man hospitalized for osteomyelitis developed severe abdominal pain and altered mental status following five weeks of linezolid therapy. Laboratory studies showed very high lipase levels, lactic acidosis not responding to resuscitation, and relative hypoglycemia. All common causes of pancreatitis were ruled out, and a trial of linezolid withdrawal was done resulting in drastic improvement in the patient's clinical status.
    Conclusions: For patients on extended course of linezolid who develop abdominal pain, drug-induced pancreatitis should be considered as a side effect, and a trial of withdrawal of linezolid should be undertaken.

  • Asnia Latif, Muniba Naqi, James F. McAnally
    Views: 407
    PDF: 308 HTML: 139

    Marijuana has long been used both for recreational and medicinal purposes. Most of the available forms of marijuana contain additives such as liquorice to enhance its flavour. Liquorice increases the amounts of cortisol in the body and produces metabolic abnormalities seen in primary hyperaldosteronism. Liquorice extracts are mixed with marijuana in the same way as for tobacco. We describe a case of apparent mineralocorticoid excess due to excessive smoking of liquorice-laced marijuana. To our knowledge, this is the first reported case of apparent mineralocorticoid excess caused by marijuana use.

  • Skender Telaku , Arber Veliu, Qendrim Zenelaj, Mimoza Telaku, Hajrullah Fejza, Fitim Alidema
    Views: 1288
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    Introduction: Pantoprazole is one of the most widely used proton pump inhibitors, but anaphylaxis occurs rarely during its use. The purpose of reporting these two cases is to show that pantoprazole is not a drug without problems; it can also cause anaphylactic reactions.
    Cases description: A 42-year-old woman presented to the emergency department due to dyspeptic complaints. Immediately at the end of the infusion of pantoprazole, there started to be numbness of the tongue, itching all over the body, and difficulty in breathing. Half an hour after taking a pantoprazole 40 mg capsule, a 58-year-old woman started to experience redness of the face, thickening of the tongue, itching, bloating, and dizziness. Arterial pressure was 80/60 mmHg, pulse 150/minute, while saturation had dropped to 88%. In both cases, fluids, adrenaline, antihistamines, methylprednisolone, and calcium were immediately started. After the improvement of their general conditions, both patients were discharged home.
    Discussion: The first case relates to anaphylaxis after the intravenous administration of pantoprazole, and the second case relates to the appearance of anaphylaxis after its oral administration.
    Conclusion: Health workers need to be informed about the possibility of anaphylaxis in patients taking both oral and parenteral pantoprazole.

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