About: RATIONALE & OBJECTIVE: Hemodialysis patients are at increased risk for COVID-19 transmission due, in part, to difficulty maintaining physical distancing. Our hemodialysis unit experienced a COVID-19 outbreak despite following symptom-based screening guidelines. We describe the course of the COVID-19 outbreak and the infection control measures taken for mitigation. STUDY DESIGN: Retrospective cohort study SETTING & PARTICIPANTS: 237 maintenance hemodialysis patients and 93 hemodialysis staff at a single hemodialysis centre in Toronto, Canada. EXPOSURE: Universal screening of patients and staff with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). OUTCOMES: The primary outcome was detection of SARS-CoV-2 in nasopharyngeal samples from patients and staff using reverse transcriptase-polymerase chain reaction (RT-PCR) . ANALYTICAL APPROACH: Descriptive statistics were used for clinical characteristics and the primary outcome. RESULTS: Eleven (4.6%) of 237 hemodialysis patients and 11 of 93 (12%) staff members had a positive RT-PCR test for SARS-CoV-2. Among individuals testing positive, 12 of 22 (55%) were asymptomatic at time of testing, and 7 of 22 (32%) were asymptomatic for the duration of follow-up. One patient was hospitalized at the time of SARS-CoV-2 infection and four additional patients with positive tests were subsequently hospitalized. Two patients (18%) required admission to the intensive care unit. After 30 days follow-up no patients had died or required mechanical ventilation. No hemodialysis staff required hospitalization. Universal droplet and contact precautions were implemented during the outbreak. Hemodialysis staff with SARS-CoV-2 infection were placed on home quarantine regardless of symptom status. Patients with SARS-CoV-2 infection including asymptomatic individuals were treated with droplet and contact precautions until confirmation of negative SARS-CoV-2 RT-PCR testing. Analysis of the outbreak identified two index cases with subsequent nosocomial transmission within the dialysis unit and in shared shuttle buses to the hemodialysis unit. LIMITATIONS: Single centre study. CONCLUSIONS: Universal SARS-CoV-2 testing and universal droplet and contact precautions in the setting of an outbreak appeared to be effective in preventing further transmission.   Goto Sponge  NotDistinct  Permalink

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  • RATIONALE & OBJECTIVE: Hemodialysis patients are at increased risk for COVID-19 transmission due, in part, to difficulty maintaining physical distancing. Our hemodialysis unit experienced a COVID-19 outbreak despite following symptom-based screening guidelines. We describe the course of the COVID-19 outbreak and the infection control measures taken for mitigation. STUDY DESIGN: Retrospective cohort study SETTING & PARTICIPANTS: 237 maintenance hemodialysis patients and 93 hemodialysis staff at a single hemodialysis centre in Toronto, Canada. EXPOSURE: Universal screening of patients and staff with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). OUTCOMES: The primary outcome was detection of SARS-CoV-2 in nasopharyngeal samples from patients and staff using reverse transcriptase-polymerase chain reaction (RT-PCR) . ANALYTICAL APPROACH: Descriptive statistics were used for clinical characteristics and the primary outcome. RESULTS: Eleven (4.6%) of 237 hemodialysis patients and 11 of 93 (12%) staff members had a positive RT-PCR test for SARS-CoV-2. Among individuals testing positive, 12 of 22 (55%) were asymptomatic at time of testing, and 7 of 22 (32%) were asymptomatic for the duration of follow-up. One patient was hospitalized at the time of SARS-CoV-2 infection and four additional patients with positive tests were subsequently hospitalized. Two patients (18%) required admission to the intensive care unit. After 30 days follow-up no patients had died or required mechanical ventilation. No hemodialysis staff required hospitalization. Universal droplet and contact precautions were implemented during the outbreak. Hemodialysis staff with SARS-CoV-2 infection were placed on home quarantine regardless of symptom status. Patients with SARS-CoV-2 infection including asymptomatic individuals were treated with droplet and contact precautions until confirmation of negative SARS-CoV-2 RT-PCR testing. Analysis of the outbreak identified two index cases with subsequent nosocomial transmission within the dialysis unit and in shared shuttle buses to the hemodialysis unit. LIMITATIONS: Single centre study. CONCLUSIONS: Universal SARS-CoV-2 testing and universal droplet and contact precautions in the setting of an outbreak appeared to be effective in preventing further transmission.
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