Publications by authors named "Mahmoud Shorman"

Significant increases in antibacterial use were observed during the COVID-19 pandemic. However, subsequent analyses found this increase in antibiotic use to be excessive in comparison with the relatively low rates of bacterial coinfection. Although patients who are critically ill with COVID-19 may be at an increased risk for pulmonary aspergillosis, antifungal use in these populations remained underreported, particularly in later phases of the pandemic.

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Introduction: the study aims to better understand the COVID-19 prescription treatments and over the counter regimens in Yemen in view of limited published data and limited availability of COVID-19 testing.

Methods: A 34 question web-based survey was distributed on social media outlets targeting people in Yemen. Data aggregation, analysis, and visualization were performed using Tableau and Microsoft Excel.

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Background: Methicillin-resistant (MRSA) infective endocarditis (IE) is associated with high morbidity and mortality. Current IE guidelines recommend transesophageal echocardiogram (TEE) over transthoracic echocardiogram (TTE) to diagnose infective endocarditis. Management of IE in people who inject drugs (PWID) in many medical centers is mainly conservative with prolonged intravenous antibiotics.

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The objective of this study was to quantify incidence and determine predictors of Gram-negative bacilli (GNB) in people who inject drugs (PWID) with injection-drug use (IDU)-related infections. The investigation was a retrospective cohort of hospitalized PWID from January 2017 to December 2019. Inclusion criteria were age of ≥18 years, active IDU, treated IDU-attributable infection, and organism growth from microbiology cultures.

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Data supporting oral step-down therapy in methicillin-resistant Staphylococcus aureus (MRSA) bloodstream infection (BSI) are sparse; linezolid offers potential in this setting. This study aimed to determine the effectiveness and safety of oral step-down linezolid compared with standard parenteral therapy (SPT) in MRSA-BSI. This was a retrospective cohort performed in adults receiving step-down/outpatient linezolid or SPT (vancomycin, daptomycin) for MRSA-BSI from 2011-2019.

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Introduction: Coronavirus infectious disease 2019 (COVID-19) is currently one of the most important public health crises affecting the global human population. It continues to spread widely, as the world still lacks specific treatments and a vaccine for the virus. The scenario of COVID-19 in Yemen seems obscure due to the lack of adequate data, therefore, we developed an electronic questionnaire and distributed it online among Yemeni people.

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Objective: To assess the efficacy and safety of dalbavancin compared to standard-of-care (SOC) or vancomycin and daptomycin in invasive infections due to suspected or confirmed Gram-positive organisms.

Methods: Retrospective cohort of adults who received dalbavancin or SOC on discharge or as an outpatient from 12/2016 to 11/2019. Indications were osteoarticular infection (OAI), infective endocarditis (IE), or other bloodstream infection (BSI).

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Background: Valve surgery in tricuspid valve infective endocarditis (TVIE) is controversial in people who inject drugs (PWID) due to perceived risks of reinfection because of recidivism. The study objective was to compare outcomes of percutaneous mechanical aspiration (PMA) using the Penumbra Indigo system to valve surgery in PWID with TVIE.

Methods: Retrospective cohort of adult PWID hospitalized with definite TVIE and received PMA or valve surgery from January 2014 to April 2019.

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Background: Candida spp. infective endocarditis (CIE) although rare is associated with high morbidity and mortality. Risk factors include prosthetic heart valves and injection drug use (IDU).

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Background: People who inject drugs (PWID) are at increased risk of deleterious sequelae due to infective endocarditis (IE). A standardized, hospital-wide drug use-associated infection protocol targeting medication safety, pain management, and limiting external risk factors was implemented at an academic medical center to improve outcomes in PWID with IE.

Methods: A quasi-experimental study included patients with active injection drug use and definite IE from January 2013 to July 2017 (preintervention group) and from September 2017 to January 2019 (intervention group).

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Background: Sepsis is an important cause of morbidity and mortality in the pregnant patient. Injection drug use in pregnant populations has led to increased cases of bacteremia and infective endocarditis (IE) due to . We describe all cases of bacteremia and IE among admitted pregnant patients at our hospital over a 6-year period.

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Blastomycosis is a local or systemic infection, caused by Blastomyces dermatitidis (B. dermatitidis) or B. gilchristii.

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Objectives: Infective endocarditis (IE) with non-HACEK Gram-negative (GN) organisms is rare, but associated with poor outcomes. The purpose of this study was to quantify the microbiology, treatment strategies, and frequency of poor outcomes in patients with non-HACEK GN IE.

Materials: Retrospective cohort of adults with definite non-HACEK GN IE from 1/11-1/19.

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Background: Despite recent improvement in management, infective endocarditis (IE) continues to be associated with considerable risk of morbidity and mortality. Early identification of predictors of inpatient mortality is key in improving patient outcomes in IE. The aim of our study was to evaluate the role of serum troponin levels measurements as a marker of increased mortality.

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Background: Vancomycin is a commonly used antibiotic with potent activity against Gram-positive organisms, but prolonged use and high doses can lead to toxicity. While vancomycin-associated nephrotoxicity is widely reported, few cases of ototoxicity have been described. The objective of this study was to determine the prevalence of negative changes in audiograms in patients receiving long-term intravenous (IV) vancomycin and to identify high-risk patients who need audiogram monitoring.

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Background: Prostatic abscess (PA) is an uncommon infection that is generally secondary to Escherichia coli and other members of the Enterobacteriaceae family. In recent years, although rare, more reports of Staphylococcus aureus (S. aureus) PA have been reported, especially with increasing reports of bacteremia associated with injection drug use (IDU).

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Introduction: The microbial epidemiology differs between infective endocarditis (IE) patients with and without a history of injection drug use. We set out to determine the prevalence and microbial epidemiology of infective endocarditis in our region, the Southeastern USA, to determine if any changes need to be made in empiric antimicrobial treatment.

Methods: The electronic medical record was reviewed for patients with IE between January 2013 and July 2017, which revealed 299 cases.

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Adrenal abscesses due to disseminated nocardiosis are exceedingly rare in clinical practice, and to date only 8 cases have been reported in the literature, most of which were confined to a single adrenal gland. These infections often occur in patients with underlying immune deficiency. We report a rare case of bilateral nocardial adrenal abscesses in an intravenous drug-using splenectomized patient that presumably originated from direct inoculation using intravenous opana, as his admission chest radiograph was normal.

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Objectives: To detect resistance genes to fluoroquinolones and β-lactams in Salmonella strains from a Saudi hospital.

Methods: From October 2015 to December 2016, a total of 149 Salmonella strains were collected from stool specimens from patients admitted to King Fahad Hospital of the University, AlKhobar, Saudi Arabia using CHROMagar Salmonella. The organism identification and antimicrobial susceptibility testing were performed using Vitek 2 system.

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Cryptococcosis is a fungal disease which has been characterized by its identified risk groups. There are many risk factors identified. We present a surprising four cases of disseminated cryptococcosis in intravenous drug abuse (IVDA) patients in a short period of time and in one geographical area, this observation suggest that there may be a new association with IVDA and cryptococosis.

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