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1.
Blood Cancer J ; 11(12): 191, 2021 12 01.
Article in English | MEDLINE | ID: covidwho-1545601

ABSTRACT

Multiple myeloma (MM) patients have increased risk of severe coronavirus disease 2019 (COVID-19) when infected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Monoclonal gammopathy of undetermined significance (MGUS), the precursor of MM has been associated with immune dysfunction which may lead to severe COVID-19. No systematic data have been published on COVID-19 in individuals with MGUS. We conducted a large population-based cohort study evaluating the risk of SARS-CoV-2 infection and severe COVID-19 among individuals with MGUS. We included 75,422 Icelanders born before 1976, who had been screened for MGUS in the Iceland Screens Treats or Prevents Multiple Myeloma study (iStopMM). Data on SARS-CoV-2 testing and COVID-19 severity were acquired from the Icelandic COVID-19 Study Group. Using a test-negative study design, we included 32,047 iStopMM participants who had been tested for SARS-CoV-2, of whom 1754 had MGUS. Among these participants, 1100 participants, tested positive, 65 of whom had MGUS. Severe COVID-19 developed in 230 participants, including 16 with MGUS. MGUS was not associated with SARS-CoV-2 infection (Odds ratio (OR): 1.05; 95% confidence interval (CI): 0.81-1.36; p = 0.72) or severe COVID-19 (OR: 0.99; 95%CI: 0.52-1.91; p = 0.99). These findings indicate that MGUS does not affect the susceptibility to SARS-CoV-2 or the severity of COVID-19.


Subject(s)
COVID-19/epidemiology , Monoclonal Gammopathy of Undetermined Significance/epidemiology , Adult , Aged , Cohort Studies , Female , Humans , Iceland/epidemiology , Male , Middle Aged , Risk Factors , SARS-CoV-2
3.
Rev Invest Clin ; 73(4): 259-264, 2021 06 02.
Article in English | MEDLINE | ID: covidwho-1498287

ABSTRACT

BACKGROUND: Patients with monoclonal gammopathy of undetermined significance (MGUS) have clinical features including older age, presence of medical comorbidities, susceptibility to infections, and thrombotic tendencies which are relevant when assessing their risk during the coronavirus disease (COVID-19) pandemic. OBJECTIVE: To study the vulnerability of patients with MGUS during the COVID-19 pandemic, we assessed the local management of MGUS patients and their clinical outcomes. METHODS: Retrospective chart reviews were performed for all patients with MGUS seen at a university medical center clinic (2014-2020). RESULTS: A total of 228 MGUS patients were included; 211 patients are alive, 7 patients died before the pandemic, and 10 patients died since the pandemic declaration. The mean age and the overall survival (OS) of the patients who died before versus during the pandemic were 83.0 versus 75.2 years, p = 0.4, and OS 40.6 versus 53.2 months, p = 0.3, respectively. One patient died of COVID-19. Nine patients had venous thromboembolisms (VTE), all of which occurred before the pandemic onset. CONCLUSIONS: There were no significant differences found in the mean age or OS of the MGUS patients who died before versus after the pandemic onset. An increase in VTE rates was not seen. Study results are limited by small patient numbers.


Subject(s)
COVID-19 , Monoclonal Gammopathy of Undetermined Significance/therapy , Venous Thromboembolism/epidemiology , Academic Medical Centers , Age Factors , Aged , Aged, 80 and over , Female , Humans , Male , Monoclonal Gammopathy of Undetermined Significance/epidemiology , Monoclonal Gammopathy of Undetermined Significance/mortality , Retrospective Studies , Survival Rate , Venous Thromboembolism/etiology , Vulnerable Populations
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