Liquid biopsies and minimal residual disease in myeloid malignancies.

Minimal residual disease (MRD) assessment through blood component sampling by liquid biopsies (LBs) is increasingly being investigated in myeloid malignancies. Blood components then undergo molecular analysis by flow cytometry or sequencing techniques and can be used as a powerful tool for prognostic and predictive purposes in myeloid malignancies. There is evidence and more is evolving about the quantification and identification of cell-based and gene-based biomarkers in myeloid malignancies to monitor treatment response. MRD based acute myeloid leukemia protocol and clinical trials are currently incorporating LB testing and preliminary results are encouraging for potential widespread use in clinic in the near future. MRD monitoring using LBs are not standard in myelodysplastic syndrome (MDS) but this is an area of active investigation. In the future, LBs can replace more invasive techniques such as bone marrow biopsies. However, the routine clinical application of these markers continues to be an issue due to lack of standardization and limited number of studies investigating their specificities. Integrating artificial intelligence (AI) could help simplify the complex interpretation of molecular testing and reduce errors related to operator dependency. Though the field is rapidly evolving, the applicability of MRD testing using LB is mostly limited to research setting at this time due to the need for validation, regulatory approval, payer coverage, and cost issues. This review focuses on the types of biomarkers, most recent research exploring MRD and LB in myeloid malignancies, ongoing clinical trials, and the future of LB in the setting of AI.

Review of Hematology-Oncology Emergencies for Internal Medicine Residents.

The prevalence of cancer continues to grow globally every year. With therapeutic advances over the recent decades, the prevalence of individuals living with cancer continues to increase. Internal medicine residents can see patients admitted to the hospital for cancer-related emergencies. Early identification and appropriate management of these emergencies have been shown to improve mortality and morbidity. In this article, we aim to review the recent updates in the management of commonly encountered oncologic emergencies in the practice of internal medicine residents. This review will cover spinal cord compression, superior vena cava syndrome, tumor lysis syndrome, hypercalcemia, pericardial tamponade, hypoglycemia, hyponatremia, bowel obstruction, increased intracranial pressure, leukostasis, hyperviscosity syndrome, neutropenic fever, and hypersensitivity reactions.

Video education about side effects of chemotherapy and immunotherapy and its impact on the anxiety, depression, and distress level of cancer patients.

BACKGROUND: Patients diagnosed with cancer are at higher risk of anxiety, depression, and overall distress. These mood disturbances are risk factors for non-adherence to cancer treatment, increased length of stay during hospital admissions, increased number of visits to the emergency department, and also impact survival. Although paper handouts about the potential side effects are widely used in the oncology practice studies have shown that digital educational material is known to work better when compared to traditional methods. However, the impact of video education on anxiety, depression, and distress have not been previously evaluated. Our study aimed to assess whether video education about potential chemotherapy and immunotherapy can reduce anxiety, depression, and distress levels. METHODS: After IRB approval, we enrolled patients who were fluent in English, younger than 80 years of age, and who were able to provide informed consent. The Hospital Anxiety and Depression Scale and Distress Thermometer were used to assess distress, as well as depression and anxiety before and after watching video educational material. Paired t-test was used to compare the differences between the scores before and after watching educational videos. The statistical software GraphPad Prism 9, San Diego, California, was used to perform the statistical analysis. RESULTS: We enrolled 29 patients, of whom 20 completed the study, six withdrew, two were lost to follow-up, and one did not complete the initial questionnaire. Of all patients that completed the study 85% of the patient found videos helpful, and they were 7/10 likely to recommend them to other patients who may experience symptoms. The mean depression score changed from 4.75 before to 4.9 after watching the videos (p 0.77), distress score from 2.3 to 2.65 (p 0.52), and anxiety scores changed from 4.85 to 6.15 (p 0.03). The feedback provided by the patients indicated that they were more willing to watch the videos related to the side effects they experienced at their free time and convenience. CONCLUSIONS: Our study suggests that patients were open to video education and found it helpful and worth watching. However, the exposure of the patients to the videos about potential side effects of cancer treatment, including those patients do not experience, may lead to increased anxiety.

Thrombotic Thrombocytopenia Masquerading As COVID-19 Infection.

Thrombotic thrombocytopenic purpura (TTP) is a rare and challenging diagnosis that consists of thrombotic microangiopathy due to complete or severe deficiency of ADAMTS13 protease that can present at any age. It is very important to have a suspicion concerning this disease as mortality can be very high if it goes unnoticed. This case describes a patient that presented with gastrointestinal symptoms and hematuria and was found to have COVID-19 and TTP.  We present a case of a 40-year-old female with no past medical history who presented to the Emergency Department with complaints of abdominal pain, nausea, vomiting, and dark urine. The patient workup revealed a platelet count of 4000. The patient was also noted to be COVID-19 positive. Upon further workup, the TTP diagnosis was confirmed. She responded appropriately to plasmapheresis and steroids. COVID-19 seems to be linked to a wide range of hematologic conditions including but not limited to TTP. In view that TTP can have significant mortality if untreated, we must be suspicious about this condition in COVID-19 cases. The aim of this case report is to highlight the importance of having a low threshold for making a diagnosis of TTP if labs are significant for hemolytic anemia. Our aim is also to emphasize that the treatment should be initiated if schistocytes are seen on the peripheral smear without awaiting laboratory results confirming low levels of ADAMTS13, given the fatal nature of the condition if left untreated.

Association of acute thrombocytopenia with anaphylaxis.

A commonly seen phenomenon in the hospital and critical care setting is anaphylaxis. This acute systemic inflammatory reaction can lead to anaphylactic shock in severe cases and potentially be fatal. The role of platelets in anaphylactic reactions is not well established; however, platelets, among other mediators such as platelet-activating factor, have been shown to promote a prothrombotic state shortly after an acute hypersensitivity reaction. In addition, the aggregation of platelets promoted by platelet-activating factor and other mediators can also lead to thrombocytopenia. We present a case of a 57-year-old woman who developed severe anaphylaxis while receiving chemotherapy with paclitaxel suspended in Cremophor, a well-known allergen. She was profoundly thrombocytopenic following the reaction and was treated with therapeutic anticoagulation, with no thrombus formation.

Exploring the Rare Etiology of Severe Anemia in an Immunocompromised Patient.

Pure red cell aplasia (PRCA) is a rare cause of profound anemia, marked by very low reticulocyte count and near to complete absence of erythroid precursor cells in the bone marrow. PRCA can be congenital such as in the case of children with Diamond- Blackfan anemia or acquired, which is often triggered by exposure to certain viruses or drugs. Management depends on the underlying etiology of PRCA. Here, we present the case of a young male with underlying acquired immunodeficiency syndrome, who presented with a hemoglobin of 2.6 g/dL, initially thought to be secondary to gastrointestinal blood loss, but was later discovered to have parvovirus-induced PRCA.

A Case Report on Bortezomib-Induced Bilateral Chalazion.

A chalazion is a swollen bump on the eyelid that occurs when the eyelid's oil gland clogs up. Bortezomib is an FDA-approved novel agent for the treatment of patients with multiple myeloma (MM). Recently, there have been a few case reports on the possible association between eyelid chalazion and bortezomib therapy. We describe the case of an 87-year-old female diagnosed with MM who developed bilateral eye chalazion after being initiated on bortezomib. She was evaluated by an ophthalmologist, started on eye lubricants and antibiotic eye drops, and the bortezomib was discontinued until the resolution of the lesions was achieved. Physicians should be aware of these ocular complications of bortezomib, as early intervention can prevent worsening eyelid complications.