Publications by authors named "Sepkowitz K"

Background: Urinary tract infections are prone to overdiagnosis, and reflex urine culture protocols offer a valuable opportunity for diagnostic stewardship in this arena. However, there is no recommended standard testing approach. Cancer patients are often excluded from reflex urine culture protocols, especially if severely immunosuppressed or neutropenic.

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Management of the exposure of pediatric oncology patients to varicella zoster virus (VZV) is controversial. We report the exposure of 56 patients to a single child with chicken pox at a pediatric cancer housing facility and describe our strategic approach for their management. We reviewed the immune and clinical status of 56 children with cancer receiving ongoing treatment at Memorial Sloan Kettering Cancer Center (MSK) who, while living at a pediatric cancer housing facility, were exposed to the index patient.

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Article Synopsis
  • As of April 10, 2020, New York State reported 180,458 cases of COVID-19, with 9,385 deaths, of which 8.4% were cancer patients.
  • Studies from China and Italy indicate cancer patients may have a higher death rate from COVID-19, leading to concerns about balancing safety in cancer treatment and reducing virus exposure.
  • At Memorial Sloan Kettering Cancer Center, 423 cancer patients tested positive for COVID-19, with 40% hospitalized and factors like age over 65 and treatment with immune checkpoint inhibitors linked to worse outcomes.
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Article Synopsis
  • - As of April 10, 2020, New York reported over 180,000 COVID-19 cases and nearly 9,400 deaths, with cancer patients making up 8.4% of the fatalities.
  • - Studies indicated that cancer patients face higher COVID-19 death rates, yet the specific risks linked to cancer and its treatments need more investigation to ensure safe cancer care amidst the pandemic.
  • - At Memorial Sloan Kettering Cancer Center, 40% of hospitalized cancer patients tested positive for COVID-19, with factors like age over 65 and recent immune checkpoint inhibitor treatment increasing the risk of severe illness.
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We examined the prevalence of measles antibody among 12 349 newly hired HCP between 2009 and 2019. Younger HCP were significantly more likely to have no immunity. Compared with a 92.

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To assess whether risk for Clostridiodes difficile infection (CDI) is higher among older adults with cancer, we conducted a retrospective cohort study with a nested case-control analysis using population-based Surveillance, Epidemiology, and End Results-Medicare linked data for 2011. Among 93,566 Medicare beneficiaries, incident CDI and odds for acquiring CDI were higher among patients with than without cancer. Specifically, risk was significantly higher for those who had liquid tumors and higher for those who had recently diagnosed solid tumors and distant metastasis.

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In recent years, vancomycin-resistant Enterococcus (VRE) colonization is being increasingly encountered in transplant recipients, and VRE has become one of the leading causes of bacteremia early after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Data are sparse on the effect of empiric VRE therapy for febrile, neutropenic allo-HSCT recipients colonized with VRE. All allo-HSCT recipients aged ≥18years who developed VRE bacteremia (VREB) between 2005 and 2014 were identified and categorized as to whether they received empiric or directed VRE therapy.

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Objective: To determine the effectiveness of ultraviolet (UV) environmental disinfection system on rates of hospital-acquired vancomycin-resistant enterococcus (VRE) and Clostridium difficile.

Design: Using active surveillance and an interrupted time-series design, hospital-acquired acquisition of VRE and C. difficile on a bone marrow transplant (BMT) unit were examined before and after implementation of terminal disinfection with UV on all rooms regardless of isolation status of patients.

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We examined care engagement and viral suppression (VS) over a 1- to 5-year period among persons re-engaged in HIV care using retrospective cohort study and longitudinal follow-up. The population comprised five cohorts of persons re-engaged in care from 2009 to 2013. We used surveillance data [CD4 T cell count or HIV viral load (VL) RNA] to measure four outcomes 1-5 years post-care engagement.

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BACKGROUNDSurgical site infections (SSIs) following colorectal surgery (CRS) are among the most common healthcare-associated infections (HAIs). Reduction in colorectal SSI rates is an important goal for surgical quality improvement.OBJECTIVETo examine rates of SSI in patients with and without cancer and to identify potential predictors of SSI risk following CRSDESIGNAmerican College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) data files for 2011-2013 from a sample of 12 National Comprehensive Cancer Network (NCCN) member institutions were combined.

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In 2015, Clostridium difficile testing rates among 30 US community, multispecialty, and cancer hospitals were 14.0, 16.3, and 33.

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Objectives: Clostridium difficile infection (CDI) is a toxin-mediated disease. Oncology patients are at increased risk for developing CDI. Diagnosis of CDI by PCR has led to misclassification of some C.

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After a cluster of fatal toxoplasmosis among stem cell transplant recipients at 2 hospitals, surveillance with polymerase chain reaction (PCR) (blood) was instituted. Rate of reactivation among seropositive recipients was 2.2 and 16%.

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Background: We prospectively evaluated the safety and efficacy of adding preoperative chemoprophylaxis to our institution's operative venous thromboembolism (VTE) prophylaxis policy as part of a physician-led quality improvement initiative.

Study Design: Patients undergoing major cancer surgery between August 2013 and January 2014 were screened according to service-specific eligibility criteria and targeted to receive preoperative VTE chemoprophylaxis. Bleeding, transfusion, and VTE rates were compared with rates of historical controls who had not received preoperative chemoprophylaxis.

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Respiratory viruses (RV) are a leading cause of infection-related morbidity and mortality for patients undergoing treatment for cancer. This analysis compared duration of RV shedding as detected by culture and PCR among patients in a high-risk oncology setting (adult patients with haematological malignancy and/or stem cell transplant and all paediatric oncology patients) and determined risk factors for extended shedding. RV infections due to influenza virus, parainfluenza virus (PIV), human metapneumovirus (HMPV) and respiratory syncytial virus (RSV) from two study periods-January 2009-September 2011 (culture-based testing) and September 2011-April 2013 (PCR-based testing)-were reviewed retrospectively.

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The spectrum of West Nile virus (WNV) infection continues to be elucidated. Many cases of WNV are asymptomatic; however, in immunocompromised patients, symptoms are more likely to be severe. We describe fatal WNV central nervous system disease in lymphoma patients who received rituximab, blunting the inflammatory response and complicating diagnosis.

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Background.  Studying the most extreme example of late diagnosis, new HIV diagnoses after death, may be instructive to HIV testing efforts. Using the results of routine HIV testing of autopsies performed by the Office of Chief Medical Examiner (OCME), we identified new HIV diagnoses after death in New York City (NYC) from 2008 to 2012.

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Introduction: The evidence has begun to mount for diminishing the frequency of CD4 count testing. To determine whether these observations were applicable to an urban US population, we used New York City (NYC) surveillance data to explore CD4 testing among stable patients in NYC, 2007-2013.

Methods: We constructed a population-based retrospective open cohort analysis of NYC HIV surveillance data.

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OBJECTIVE To determine the role of unit-based transmission that accounts for cases of early Clostridium difficile infection (CDI) during hospitalization for allogeneic stem cell transplant. SETTING Stem cell transplant unit at a tertiary care cancer center. METHODS Serially collected stool from patients admitted for transplant was screened for toxigenic C.

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Objective: In this study, we examined the impact of routine use of a passive disinfection cap for catheter hub decontamination in hematology-oncology patients.

Setting: A tertiary care cancer center in New York City.

Methods: In this multiphase prospective study, we used 2 preintervention phases (P1 and P2) to establish surveillance and baseline rates followed by sequential introduction of disinfection caps on high-risk units (HRUs: hematologic malignancy wards, hematopoietic stem cell transplant units and intensive care units) (P3) and general oncology units (P4).

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Background: Patients undergoing treatment for cancer with chemotherapy and hematopoietic stem cell recipients are at risk for severe morbidity caused by norovirus (NV).

Methods: We describe a NV outbreak on the Memorial Sloan Kettering Cancer Center's pediatric oncology unit. Stool testing for diagnosis of NV was performed by real-time polymerase chain reaction (PCR).

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Background: Identifying unwarranted variation in health care can highlight opportunities to reduce harm. One often discretionary process in oncology is use of implanted ports to administer intravenous chemotherapy. While there are benefits, ports carry risks.

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