Immune Modulatory Therapy Causing Acute Coronary Syndrome.

Intravenous immunoglobulin (IVIG) is a therapeutic preparation of pooled polyspecific IgG used effectively in immune thrombocytopenic purpura (ITP), autoimmune diseases, and inflammatory diseases. We present a case of a 67-year-old male who presented with diffuse petechiae and was diagnosed with immune thrombocytopenic purpura with platelet count less than 10,000 per milliliter. Treatment was initiated with IVIG. When the third dose of IVIG was being administered he developed hypertensive urgency and non-ST segment elevation myocardial infarction. He was deemed not to be a candidate for cardiac catheterization and was treated conservatively. IVIG can cause major thrombotic adverse events such as deep vein thrombosis, myocardial infarction and stroke, which are attributed to thrombosis and hyperviscocity. Decreasing the dosage of IVIG, administration of anticoagulants are proposed treatments for such events. We propose that patients receiving high-dose IVIG with previous coronary artery disease require meticulous cardiac monitoring. Further research is needed to determine the true adverse effects of high-dose IVIG and prophylaxis regimens to decrease the risk.

Granulomatous Amyloid Angiopathy in a Patient With Persistent Headache.

Cerebral amyloid angiopathy (CAA) is a type of cerebrovascular disorder characterized by the accumulation of amyloid beta peptide within the walls of small to medium-sized blood vessels in the brain and leptomeninges. This can cause a variety of symptoms, depending on the location and extent of the deposits. Common presentations of amyloid angiopathy include cognitive decline, memory loss, headaches, vision changes, stroke-like symptoms, and seizures. In some cases, there may be no noticeable symptoms. A 78-year-old female was admitted for ongoing evaluation of a persistent headache after her primary care physician (PCP) ordered outpatient magnetic resonance imaging (MRI) that showed findings concerning metastatic tumors versus infectious processes. She underwent a right temporal lobe biopsy, which confirmed the diagnosis of granulomatous amyloid angiopathy.

Extra-Axial Skeletal Metastasis of Malignant Melanoma: Case Report and Literature Review.

The incidence of malignant melanoma is increasing worldwide and is one of the major causes of skin cancer deaths in the United States. Although melanoma has the potential to metastasize to any organ, the incidence of bone metastasis is low (~25%) compared to liver or lung metastasis. However, when a bone is involved, metastasis occurs to the axial skeleton in most cases (80%-90%), and involvement of the appendicular skeleton is relatively rare. We here describe the case of a patient who presented with a pathological fracture due to extra-axial skeletal metastasis of a widespread malignant melanoma.  A 45-year-old female with an unremarkable past medical history presented to the ED with acute left hip pain. X-ray demonstrated left intertrochanteric femur fracture with an abnormal, suspicious lesion at the fracture site. Detailed physical examination revealed various skin nodules on the anterior chest wall, right upper back, and left cheek. CT of the chest/abdomen/pelvis (CT C/A/P) showed multiple lytic bone lesions and metastatic lesions in lungs, soft tissue, and mediastinal lymph nodes. She underwent surgical stabilization of the fracture, and a biopsy of the bone lesion revealed metastatic malignant melanoma with BRAF V600E mutation. She was started on localized radiotherapy followed by targeted therapy (dabrafenib and trametinib) and denosumab for her stage IV (cTX, cN2, cM1b(1)) (American Joint Committee on Cancer [AJCC] cancer staging 8th edition) disease. Despite treatment, her disease progressed as evidenced by the presence of new metastatic foci on a positron emission tomography-computed tomography (PET-CT) scan performed at a three-month follow-up. Her clinical course was complicated by hemoperitoneum due to bleeding from metastatic liver lesions and respiratory failure requiring a prolonged stay in the ICU before she was deceased. In most cases, malignant melanoma presents with skin lesions at an early stage. Very few patients (4%) have metastatic disease at presentation. Although metastasis to bone is known to occur in advanced disease, involvement of the extra-axial skeleton is relatively rare. Malignant melanoma, initially presenting as pathological fracture of the appendicular skeleton, is not commonly encountered. Our case emphasizes the aggressive nature of malignant melanoma with an aim to raise physicians' awareness of this uncommon presentation. A brief review of the literature exploring prognosis and currently available treatment options is discussed.

Alcohol Use Disorder Admissions During the COVID-19 Pandemic: Findings From a Tertiary Community Hospital.

OBJECTIVES: The first case of Coronavirus disease-19 (COVID-19) in the United States was confirmed by the Centers for Disease Control (CDC) in January 2020. The presence of COVID-19 and the subsequent spread of this disease led to stress, anxiety, grief, and worry. We aimed to study the rate of hospital admission for alcohol use disorder (AUD) before and during the COVID-19 pandemic in a tertiary community hospital in Michigan. METHODS: Two subsets of hospital data were collected for comparison between hospitalized patients before and during the pandemic in a tertiary community hospital. Logistic regression was used to identify the odds ratio of AUD admission rates among all patients in 2020 compared with 2019 while controlling for covariates. RESULTS: Our data showed a statistically significant increase in AUD patients in 2020 compared to 2019 (3.26% versus 2.50%, adjusted OR=1.44 with P=0.002). In addition, females had significantly lower chances of admission for AUD compared with males (OR=0.22 with P<0.001) and African Americans had significantly lower chances of admission for AUD compared to Whites (OR=0.44 with P <0.001). Divorced patients had a higher probability of admission for AUD compared to married patients (OR=2.62 with P<0.001). CONCLUSION: Our study found a significantly higher rate of AUD admissions in 2020 during the COVID-19 Pandemic compared to 2019. Gender, race, age, and marital status are significant risk factors related to AUD admissions.

Type 2 diabetes patient activation and mHealth interventions decreased cardiovascular disease risk.

OBJECTIVES: Cardiovascular disease (CVD) deaths in patients with type 2 diabetes (T2D) are 2 to 4 times higher than among those without T2D. Our objective was to determine whether a patient activation program (Office-Guidelines Applied to Practice [Office-GAP]) plus a mobile health (mHealth) intervention compared with mHealth alone improved medication use and decreased 10-year atherosclerotic CVD (ASCVD) risk score in patients with T2D. STUDY DESIGN: Quasi-experimental design; Office-GAP plus mHealth vs mHealth only. METHODS: The Office-GAP intervention included (1) a patient activation group visit, (2) provider training, and (3) a decision support checklist used in real time during the encounter. The mHealth intervention included daily text messages for 15 weeks. Patients with T2D (hemoglobin A1c ≥ 8%) attending internal medicine residency clinics were randomly assigned to either the combined Office-GAP + mHealth group (Green) or mHealth-only group (White). After group visits, patients followed up with providers at 2 and 4 months. A generalized estimating equation regression model was used to compare change in medication use and ASCVD risk scores between the 2 arms at 0, 2, and 4 months. RESULTS: Fifty-one patients with diabetes (26 in Green team and 25 in White team) completed the study. The 10-year ASCVD risk score decreased in both groups (Green: -3.23; P = .06; White: -3.98; P = .01). Medication use increased from baseline to 4-month follow-up (statin: odds ratio [OR], 2.20; 95% CI, 1.32-3.67; aspirin: OR, 3.21, 95% CI, 1.44-7.17; angiotensin-converting enzyme inhibitor/angiotensin receptor blocker: OR, 2.67, 95% CI, 1.09-6.56). There was no significant difference in impact of the combined intervention (Office-GAP + mHealth) compared with mHealth alone. CONCLUSIONS: Both Office-GAP + mHealth and mHealth alone increased the use of evidence-based medications and decreased 10-year ASCVD risk scores for patients with T2D in 4 months.

Recreational Nitrous Oxide-Induced Subacute Combined Degeneration of the Spinal Cord.

There is rising use of recreational nitrous oxide (N2O) in the community because of its availability as "whippet" canisters. Nitrous oxide use is still legal and outside the purview of the Drug Enforcement Administration (DEA). It is not detected on a routine drug screen, and patient history is key to establishing the diagnosis. We highlight a case of subacute combined degeneration in a young patient secondary to recreational nitrous oxide use, which improved with vitamin B12 replacement. A 19-year-old male with a history of recreational nitrous oxide use presented with progressive bilateral lower extremity paresthesia and ataxia. Neurological examination revealed deficits in vibration and proprioception, motor weakness, and diminished reflexes in the bilateral lower extremities. The laboratory results were significant for pancytopenia, profound vitamin B12 deficiency (55 ng/mL), and elevated methylmalonic acid (2.14 umol/L). The urine drug screen was negative. MRI showed subacute degeneration of the spinal cord dorsal column at C2-C5. Treatment with intramuscular cyanocobalamin resulted in the normalization of pancytopenia and B12 levels (573 ng/mL). The patient had partial resolution of neurological symptoms following the initiation of parenteral vitamin B12 replacement. The mechanism of subacute combined degeneration in the setting of nitrous oxide toxicity appears to be mediated by functional B12 deficiency. Oxidation of cobalt ion of vitamin B12 by nitrous oxide renders it unavailable as a coenzyme, leading to the accumulation of by-products that enter lipid metabolism, resulting in abnormal myelin synthesis, which ultimately manifests as subacute combined degeneration. Vitamin B12 deficiency of unclear etiology should raise suspicion for nitrous oxide toxicity as early initiation of replacement therapy with vitamin B12 can improve neurological function.

Effect of Immunosuppressive Diseases and Rituximab Infusions on Allowing COVID-19 Infection to Relapse.

INTRODUCTION: Relapsing COVID-19 infections have been reported, but their etiology and severity are still unknown. In addition, there have been no cases in the literature that associate relapsing infection with immunosuppression, either from a disease course or medications. CASE PRESENTATION: This case series illustrates two patients who developed a relapsed infection, likely from recent rituximab infusions. In addition, both cases depicted a severe form of infection than the initial one. Laboratory investigations revealed these patients were unable to produce COVID-19 antibodies, even though one of the patients received convalescent plasma. CONCLUSION: Clinicians should be aware of the possibility of relapsing COVID-19, especially in immunosuppressed patients. Because rituximab induces B-cell depletion, it can also decrease the effectiveness of the COVID-19 vaccine. Therefore, these patients should receive the vaccine before their scheduled rituximab infusion.

One month of nitrous oxide abuse causing acute vitamin B 12 deficiency with severe neuropsychiatric symptoms.

A 21-year-old university student studying abroad in the USA presented to the emergency department with double vision, lower extremity weakness with difficulty ambulating and other neuropsychiatric symptoms. MRI of the brain and spinal cord were normal. Vitamin B12 was 78 pg/mL (58 pmol/L, reference 211-911 pg/mL). The patient had been using nitrous oxide capsules used for whipped cream recharging, which she obtained from other students, a few times daily for a month for the purpose of anxiety relief. The patient was not a vegan or vegetarian. The patient was treated with intramuscular vitamin B12 repletion with partial resolution of neurologic symptoms and discharged on vitamin B12 supplementation.

Removing the problem: parathyroidectomy for calciphylaxis.

Calcific uremic arteriolopathy (CUA), widely known as calciphylaxis, is a rare and lethal disease that usually affects patients with end-stage renal disease. It is characterised by widespread vascular calcification leading to tissue ischaemia and necrosis and formation of characteristic skin lesions with black eschar. Treatment options include sodium thiosulfate, cinacalcet, phosphate binders and in resistant cases, parathyroidectomy. We report a case of recurrent, treatment-resistant CUA successfully treated with parathyroidectomy. Her postoperative course was complicated by hungry bone syndrome and worsening of her wounds before they completely healed. We then discuss the morbidity of CUA, including the controversy around the use of parathyroidectomy and risk of aggressive management of hungry bone syndrome.