Publications by authors named "Benjamin Mccormick"

Background: There is limited data within the urologic literature regarding bowel complications and leak rates following surgery requiring ileocolic anastomoses such as right colon pouch (RCP) and continent cutaneous ileocecocystoplasty (CCIC). We aimed to establish ileocolic anastomotic leak rates in urologic reconstructive surgery and determine bowel-related complications following RCP and CCIC surgeries.

Methods: We reviewed adult patients who underwent RCP or CCIC (2010-2022), investigating patient characteristics, perioperative variables, and outcomes.

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There is growing realisation that changes to the food system are needed to prevent the worst scenarios for future climatic change. One of these changes is for people to consume sustainable diets, which are healthy, do not place overwhelming strain on the environment, and are culturally and socially acceptable and economically attainable. One facet of such diets is that people in countries where meat is consumed in large quantities may need to reduce their intake.

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Core-binding factor acute myeloid leukemia (CBF-AML) is characterized by the presence of inv(16)/t(16;16) or t(8;21) and is classified as a favorable risk by the 2022 European LeukemiaNet (ELN) guidelines. The CD33-targeting antibody-drug conjugate, gemtuzumab ozogamicin (GO), is commonly added to intensive chemotherapy (IC) in CBF-AML. We sought to compare outcomes in patients treated with IC with or without GO in CBF-AML.

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Spontaneous remission (SR) in acute lymphoblastic leukemia (ALL) is a poorly understood phenomenon that has been sporadically reported in medical literature for over a century, and the molecular and immunologic mechanisms of remission pose interesting clinical questions. Furthermore, the often-transient nature of these remissions poses a challenge to physicians in formulating an approach to treatment. We report on a rare case of sepsis in a three-year-old female with high-risk ALL who received less than two months of treatment prior to sepsis and subsequent SR.

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Pure red cell aplasia (PRCA) is a rare hematologic disorder presenting with symptomatic normocytic anemia with preservation of other bone marrow cell lineages that may be acquired in adulthood due to malignancy, autoimmune disease, and infections. PRCA has been attributed to Epstein-Barr virus (EBV) in patients with underlying malignancy; however, we present a rare case of EBV-related PRCA in a previously healthy elderly male without an underlying malignancy who developed transfusion-dependent anemia that responded to glucocorticoids, rituximab, and intravenous immunoglobulins.

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Chylothorax is a rare condition that results from thoracic duct disruption with malignant and nonmalignant etiologies manifesting as a pleural effusion. Typically, chylothorax in the setting of cirrhosis is associated with the migration of chylous ascites. We present the case of a 64-year-old male with prior liver transplant who presented with new-onset transudative chylothorax without chylous ascites who responded to transjugular intrahepatic portosystemic shunt revision, diuresis, and serial thoracentesis.

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Cutaneous paraneoplastic syndromes due to Hodgkin lymphoma present with a wide spectrum of clinical manifestations from generalized pruritus to exfoliative erythroderma. We summarize the clinical findings and outcomes of 14 patients with Hodgkin lymphoma and associated cutaneous paraneoplastic syndromes treated at Mayo Clinic over the past 3 decades. Cutaneous paraneoplastic syndromes may be present at the time of lymphoma diagnosis, whereas in other patients, it may appear at the time of relapse, including patients with initial absence of cutaneous manifestations during the initial lymphoma presentation.

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Ornithine transcarbamylase deficiency (OTCD) is a rare, X linked disorder that can manifest in late adulthood in heterozygous females as severe hyperammonaemia following environmental stressors. We present a case of hyperammonaemic encephalopathy that was triggered by glucocorticoid administration in an adult woman with heterozygous OTCD with clinical response to haemodialysis, ammonia scavengers and a high-calorie, low-protein diet.

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Background: This study updates the American Association for the Surgery of Trauma (AAST) Organ Injury Scale (OIS) for renal trauma using evidence-based criteria for bleeding control intervention.

Methods: This was a secondary analysis of a multicenter retrospective study including patients with high-grade renal trauma from seven level 1 trauma centers from 2013 to 2018. All eligible patients were assigned new renal trauma grades based on revised criteria.

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Objective: To compare characteristics and outcomes in patients who had radiotherapy (RT) for prostate cancer (PCa) and underwent urinary diversion (UD) due to prostatic fistula (Fistula) vs localized radiation injury (Localized).

Methods: This study was a retrospective single-institution study. Exclusion criteria included follow-up <3 months, large pelvic tumor, and surgery for cancer control.

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Objective: To investigate the association of low-grade radiation injury (LGRI) and high-grade radiation injury (HGRI) following prostate cancer treatment with mental health diagnoses and therapy.

Methods: A retrospective study of men diagnosed with prostate cancer who were treated with radiotherapy. Men were followed to assess for LGRI or HGRI using IBM MarketScan.

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Background: Findings of the association between iron status and depressive symptoms in nonpregnant women of reproductive age (WRA) are equivocal, limited by a small sample size, or did not consistently control for confounders.

Objective: We tested the association between iron status and depressive symptoms in WRA with the NHANES data (2005-2010).

Methods: Nonpregnant WRA (20-44 y) with complete data on iron (ferritin and transferrin receptor (TfR)) and anemia (hemoglobin) biomarkers, depressive symptoms (Patient Health Questionnaire-9), and sociodemographic variables were included.

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Objectives: To investigate the incidence and associated risk factors of venous thromboembolism (VTE) after gender affirming vaginoplasty.

Methods: We searched International Business Machines Corporation (IBM) Marketscan, a commercial claims database, for Current Procedural Terminology and International Classification of Diseases (ICD) procedure codes to identify patients who underwent gender affirming vaginoplasty from 2011-2020. We quantified deep venous thrombosis and pulmonary embolism using ICD-9 and ICD-10 codes found within 90 days after surgery.

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As the prevalence and understanding of genital gender-affirming surgery have grown, so has the spectrum of surgical techniques to better serve a wider range of transgender and nonbinary individuals. Given the diverse spectrum of individuals seeking phalloplasty, patient-driven decision-making, beginning with the initial consultation, is critical. Phalloplasty is not a one-size-fits-all surgery, but instead should be viewed as an individually customized approach.

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Pembrolizumab is an immune checkpoint inhibitor used in many cancer types, including genitourinary cancers. Although immunotherapies have dramatically changed the landscape of cancer treatment by providing an alternative to traditional chemotherapy, they have been associated with significant immune-related adverse events (IRAEs) with wide-ranging clinical manifestations. We present the case of an elderly woman on pembrolizumab for metastatic bladder cancer who developed cutaneous IRAE with lichenoid eruptions that responded to high-dose intravenous glucocorticoids.

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Objective: To evaluate the healthcare resource impact of radiation injury following prostate cancer treatment.

Methods: Using IBM MarketScan, we performed a retrospective study of men with prostate cancer who were treated with radiotherapy and subsequently developed low-grade (LGRI) and high-grade radiation injury (HGRI). Radiation injury diagnoses included bladder neck stenosis, hematuria/cystitis, fistula, ureteral stricture, and incontinence.

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-related thrombocytopenia is a rare inherited disorder associated with an increased risk of malignancy. While the genetic mutations underlying this condition are well understood, there is limited knowledge regarding its contribution to myeloid neoplasms, such as acute myeloid leukemia (AML). We present a case of -related thrombocytopenia with a variant of uncertain significance in a patient with AML and review the pathogenesis and implications of hereditary germline mutations in disease management.

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Objective: To describe the initial outcomes of a new multidisciplinary gender-affirming surgery (GAS) program comprised of plastic and urologic surgeons.

Methods: We retrospectively examined consecutive patients who underwent gender-affirming vaginoplasty or vulvoplasty between April 2018 and May 2021. We used logistic regression modeling to analyze associations between preoperative risk factors and postoperative complications.

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We sought to assess if COVID-19 infection recovery is associated with increased rates of newly diagnosed erectile dysfunction. Using IBM MarketScan, a commercial claims database, men with prior COVID-19 infection were identified using ICD-10 diagnosis codes. Using this cohort along with an age-matched cohort of men without prior COVID-19 infection, we assessed the incidence of newly diagnosed erectile dysfunction.

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Background And Objectives: Docusate sodium is a commonly prescribed medication to relieve constipation, but several studies have demonstrated its ineffectiveness. Its continued use in the hospital setting adds unnecessary cost and risk to patients. At the Mayo Clinic Florida campus, docusate was ordered for 9.

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Background: Environmental enteric dysfunction increases the likelihood of micronutrient deficiencies among infants, but few studies have assessed the potential impact of gut health on urinary iodine concentration (UIC) among this vulnerable group.

Objectives: We describe the trends of iodine status among infants from 6 to 24 mo old and examine the associations between intestinal permeability, inflammation, and UIC from 6 to 15 mo of age.

Methods: Data from 1557 children enrolled in this birth cohort study conducted in 8 sites were included in these analyses.

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Background: Diet norms are the shared social behaviours and beliefs about diets. In many societies, including the UK, these norms are typically linked to unhealthy diets and impede efforts to improve food choices. Social interactions that could influence one another's food choices, were highly disrupted during the lockdowns in response to the COVID-19 pandemic.

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Importance: Few US studies have reexamined risk factors for SARS-CoV-2 positivity in the context of widespread vaccination and new variants or considered risk factors for cocirculating endemic viruses, such as rhinovirus.

Objectives: To evaluate how risk factors and symptoms associated with SARS-CoV-2 test positivity changed over the course of the pandemic and to compare these with the risk factors associated with rhinovirus test positivity.

Design, Setting, And Participants: This case-control study used a test-negative design with multivariable logistic regression to assess associations between SARS-CoV-2 and rhinovirus test positivity and self-reported demographic and symptom variables over a 25-month period.

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