Back to Authors

Powers, Harry Ross

Mayo Clinic

Division of Infectious Diseases, Mayo Clinic Hospital Jacksonville, Jacksonville, Florida, USA.

Citations 6

Impact of Pretransplant Antimicrobial Sulfonamide Allergy Label in Kidney Transplant Recipients
Cuellar, Cesar Campos, Venugopal, A. , Pleqi, Vasili, Hochwald, Alex, Ma, Yaohua , Gonzales, Alexei, Powers, Harry Ross, Wadei, Hani M , Venugopal, Amogharvasha, Powers, Harry Ross, Wadei, Hani M. , Cuellar, Cesar Campos, Venugopal, Amogharvasha, Gonzales, Alexei

Transplant Infectious Disease | June 5, 2025 | Volume: 27 | Issue: 4 | Pages: No page available

10.1111/tid.70063 Get It

ABSTRACT Background Sulfa antibiotic allergy labels (SALs) are encountered frequently in kidney transplant recipients (KTs). This often results in patients receiving second‐line prophylaxis for both Pneumocystis jiroveci and urinary tract infections (UTIs). The effect of SAL on outcomes including UTIs after KT is unclear. Methods In our single‐center retrospective cohort study, we investigated the effect of SALs on bacteriuria after KT. We identified patients with pre‐KT SALs from 2011 to 2022. A matched cohort was then created using KT with no pretransplant SALs. The groups were compared using proportional analysis and univariable and multivariable Cox proportional regression models. The primary outcome of interest was the proportion of individuals experiencing one or more episodes of bacteriuria within 1 year posttransplant. Secondary outcomes included bacteremic UTIs, acute kidney injury, and opportunistic infections. Results We found that the proportion of individuals experiencing bacteriuria within the first‐year posttransplant was significantly greater in the SAL group versus the control group ( n = 21, 28% vs. n = 22, 14.7%, p = 0.012). This result was also seen in univariable and multivariable survival analysis. In addition, episodes of UTI with associated bacteremia ( n = 11, 14.7% vs. n = 5, 3.3%, p = 0.002) were statistically significantly higher in the SAL group. Conclusion There was a significantly greater number of episodes of bacteriuria in the first‐year posttransplant in subjects with pretransplant SAL. Based on our findings, we suggest that all KTs with pretransplant SALs undergo evaluation and intervention prior to transplantation. image
Neurocognitive Screening in Patients Following SARS-CoV-2 Infection: Tools for Triage
Blackmon, Karen , Day, Gregory S. , Bosch, Wendelyn , Prabhakaran, Divya , Woolston, Dixie J., Pedraza, Otto , Powers, Harry Ross, Woolston, Dixie, Day, Gregory S , Powers, Harry Ross

No container title available | February 7, 2022 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-1127420/v1 Get It

Abstract Background and purpose Cognitive complaints are common in patients recovering from Coronavirus Disease 2019 (COVID-19), yet their etiology is often unclear. We assess factors that contribute to cognitive impairment in ambulatory versus hospitalized patients during the sub-acute stage of recovery. Methods Participants were prospectively recruited from a hospital-wide registry. All patients tested positive for SARS-CoV-2 infection using a real-time reverse transcriptase polymerasechain-reaction assay. Patients ≤ 18 years-of-age and those with a pre-existing major neurocognitive disorder were excluded. Participants completed an extensive neuropsychological questionnaire and a computerized cognitive screen via remote telemedicine platform. Rates of subjective and objective neuropsychological impairment were compared between the ambulatory and hospitalized groups. Factors associated with impairment were explored separately within each group. Results A total of 102 patients (76 ambulatory, 26 hospitalized) completed the symptom inventory and neurocognitive tests 24 ± 22 days following laboratory confirmation of SARSCoV-2 infection. Hospitalized and ambulatory patients self-reported high rates of cognitive impairment (27-40%), without differences between the groups. However, hospitalized patients showed higher rates of objective impairment in visual memory (30% vs. 4%; p=0.001) and psychomotor speed (41% vs. 15%; p=0.008). Objective cognitive test performance was associated with anxiety, depression, fatigue, and pain in the ambulatory but not the hospitalized group. Conclusions Focal cognitive deficits are more common in hospitalized than ambulatory patients. Cognitive performance is associated with neuropsychiatric symptoms in ambulatory but not hospitalized patients. Objective neurocognitive measures can provide essential information to inform neurologic triage and should be included as endpoints in clinical trials.
Antibiotic stewardship: Early discontinuation of antibiotics based on procalcitonin level in COVID‐19 pneumonia
Roy, Archana , Craver, Emily C. , Nazareno, Mark D. , Yarrarapu, Siva Naga S. , Sanghavi, Devang , Powers, Harry Ross, Nazareno, Mark D , Yarrarapu, Siva Naga S , Sanghavi, Devang K., Powers, Harry Ross

Journal of Clinical Pharmacy and Therapeutics | November 12, 2021 | Volume: 47 | Issue: 2 | Pages: 243-247

10.1111/jcpt.13554 Get It

Disseminated cryptococcosis in a patient with newly diagnosed HTLV-1 infection
Motoa, Gabriel , Powers, H. R. , Brumble, Lisa , Powers, Harry Ross, Powers, Harry R

BMJ Case Reports | January 28, 2021 | Volume: 14 | Issue: 1 | Pages: e235794

10.1136/bcr-2020-235794 Get It

Infection by human T-lymphotropic virus 1 (HTLV-1) is often seen as the cause of chronic infection or lymphoproliferative disorders, but many clinicians do not recognise its association with severe immunosuppression. We report the case of a woman in her 70s from the Caribbean who sought care at the emergency department for weakness, fatigue and weight loss. Further work-up showed atypical lymphocytosis with floral lymphocytes and smudge cells in the peripheral blood smear and hypercalcaemia. Chest CT demonstrated a moderate right pleural effusion. Results of HIV testing were negative, and screening and confirmatory tests for HTLV-1 were positive. Empiric antibiotic therapy was administered, and the patient was discharged home. Five days later, she was readmitted with shortness of breath and severe abdominal pain. A disseminated infection with Cryptococcus neoformans was diagnosed. Despite aggressive intravenous antifungal therapy, the patient died on day 7 of hospitalisation.
Neurobrucellosis associated with feral swine hunting in the southern United States
Powers, H. R. , Nelson, Jared R, Álvarez, Salvador, Mendez, Julio, Powers, Harry Ross, Mendez, Julio C, Powers, Harry R

BMJ Case Reports | December 22, 2020 | Volume: 13 | Issue: 12 | Pages: e238216

10.1136/bcr-2020-238216 Get It

Although uncommon, Brucella infection can occur outside the areas of high endemicity, such as the USA. In the southern USA, hunters of wild swine are at risk for brucellosis. We present a case of a patient with fever, headache and constitutional symptoms that were ongoing for 11 months. He was diagnosed with neurobrucellosis. The patient was treated successfully with intravenous ceftriaxone, oral doxycycline and oral rifampin therapy. He had persistent neurological sequelae after completing treatment. This case illustrates the high index of suspicion needed to diagnose neurobrucellosis in a non-endemic country because initial symptoms can be subtle. The disease can be treated successfully, but long-lasting neurological sequelae are common.
Tuberculosis presenting as dacryoadenitis in the USA
Powers, H. R. , Diaz, Mark Anthony , Mendez, Julio, Powers, Harry Ross, Mendez, Julio C, Powers, Harry R

BMJ Case Reports | November 20, 2019 | Volume: 12 | Issue: 11 | Pages: e231694

10.1136/bcr-2019-231694 Get It

A 25-year-old Filipino woman living in the USA was evaluated for a 5-month history of left eye pain and a subsequent orbital mass. Histopathological analysis of the lacrimal mass showed a mixed inflammatory process with necrotising granulomas and positive cultures for Mycobacterium tuberculosis. She was treated with antituberculosis therapy, with resolution of symptoms. Tuberculosis dacryoadenitis is extremely rare in the USA and other developed countries. It requires a high degree of clinical suspicion with special attention to the patient’s history to make the correct diagnosis. It can be treated successfully with antituberculosis therapy.