Risk of Second Cancers in Merkel Cell Carcinoma: A Meta-Analysis of Population Based Cohort Studies

The risk of second cancers in Merkel cell carcinoma (MCC) remains uncertain since risk estimates vary worldwide. The global MCC population is growing and there is a demand for better knowledge of prognosis of this disease. The Cochrane Database of Systematic Reviews, MEDLINE, and EMBASE search engin...

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Main Authors: Anshul Saxena, Muni Rubens, Venkataraghavan Ramamoorthy, Hafiz Khan
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Skin Cancer
Online Access:http://dx.doi.org/10.1155/2014/184245
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author Anshul Saxena
Muni Rubens
Venkataraghavan Ramamoorthy
Hafiz Khan
author_facet Anshul Saxena
Muni Rubens
Venkataraghavan Ramamoorthy
Hafiz Khan
author_sort Anshul Saxena
collection DOAJ
description The risk of second cancers in Merkel cell carcinoma (MCC) remains uncertain since risk estimates vary worldwide. The global MCC population is growing and there is a demand for better knowledge of prognosis of this disease. The Cochrane Database of Systematic Reviews, MEDLINE, and EMBASE search engines were searched for the relevant literature between January 1999 and September 2014 by use of explicit search criteria. The main outcome was second malignancies associated with MCC patients measured by standardized incidence ratios (SIRs) or other estimates of risks. Five papers fulfilled the inclusion criteria and reported SIRs of second cancer in MCC which varied from 1.07 to 2.80. Performing meta-analysis using random effects model revealed that there was an increased risk for second malignancies due to MCC (SIR, 1.52; 95% CI, 1.10–2.11). There was a significant increase in risk for malignant melanoma (SIR, 3.09; 95% CI, 2.02–4.73) as compared to all common second malignancies among the studies. Updated knowledge about risk of second malignancies in MCC will help in better assessment of the disease prognosis and will help in optimizing the medical and surgical treatment, radiotherapy, follow-up, and surveillance procedures.
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spelling doaj-art-c304681c7c514b07ab467ad871cb88b92025-08-20T02:18:59ZengWileyJournal of Skin Cancer2090-29052090-29132014-01-01201410.1155/2014/184245184245Risk of Second Cancers in Merkel Cell Carcinoma: A Meta-Analysis of Population Based Cohort StudiesAnshul Saxena0Muni Rubens1Venkataraghavan Ramamoorthy2Hafiz Khan3Department of Health Promotion and Disease Prevention, Robert Stempel College of Public Health and Social Work, Florida International University, Biscayne Bay Campus, ACI-260, 3000 NE 151st Street, Miami, FL 33181, USADepartment of Health Promotion and Disease Prevention, Robert Stempel College of Public Health and Social Work, Florida International University, Biscayne Bay Campus, ACI-260, 3000 NE 151st Street, Miami, FL 33181, USADepartment of Dietetics and Nutrition, Florida International University, Miami, FL 33199, USADepartment of Biostatistics, Florida International University, Miami, FL 33199, USAThe risk of second cancers in Merkel cell carcinoma (MCC) remains uncertain since risk estimates vary worldwide. The global MCC population is growing and there is a demand for better knowledge of prognosis of this disease. The Cochrane Database of Systematic Reviews, MEDLINE, and EMBASE search engines were searched for the relevant literature between January 1999 and September 2014 by use of explicit search criteria. The main outcome was second malignancies associated with MCC patients measured by standardized incidence ratios (SIRs) or other estimates of risks. Five papers fulfilled the inclusion criteria and reported SIRs of second cancer in MCC which varied from 1.07 to 2.80. Performing meta-analysis using random effects model revealed that there was an increased risk for second malignancies due to MCC (SIR, 1.52; 95% CI, 1.10–2.11). There was a significant increase in risk for malignant melanoma (SIR, 3.09; 95% CI, 2.02–4.73) as compared to all common second malignancies among the studies. Updated knowledge about risk of second malignancies in MCC will help in better assessment of the disease prognosis and will help in optimizing the medical and surgical treatment, radiotherapy, follow-up, and surveillance procedures.http://dx.doi.org/10.1155/2014/184245
spellingShingle Anshul Saxena
Muni Rubens
Venkataraghavan Ramamoorthy
Hafiz Khan
Risk of Second Cancers in Merkel Cell Carcinoma: A Meta-Analysis of Population Based Cohort Studies
Journal of Skin Cancer
title Risk of Second Cancers in Merkel Cell Carcinoma: A Meta-Analysis of Population Based Cohort Studies
title_full Risk of Second Cancers in Merkel Cell Carcinoma: A Meta-Analysis of Population Based Cohort Studies
title_fullStr Risk of Second Cancers in Merkel Cell Carcinoma: A Meta-Analysis of Population Based Cohort Studies
title_full_unstemmed Risk of Second Cancers in Merkel Cell Carcinoma: A Meta-Analysis of Population Based Cohort Studies
title_short Risk of Second Cancers in Merkel Cell Carcinoma: A Meta-Analysis of Population Based Cohort Studies
title_sort risk of second cancers in merkel cell carcinoma a meta analysis of population based cohort studies
url http://dx.doi.org/10.1155/2014/184245
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