“Spin” in Observational Studies in Deep Inferior Epigastric Perforator Flap Breast Reconstruction: A Systematic Review

Background:. The deep inferior epigastric artery perforator (DIEP) flap is widely used in autologous breast reconstruction. However, the technique relies heavily on nonrandomized observational research, which has been found to have high risk of bias. “Spin” can be used to inappropriately present stu...

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Main Authors: Patrick J. Kim, BHSc, Morgan Yuan, MD, Jeremy Wu, BMSc, Lucas Gallo, MD, Kathryn Uhlman, MD, Sophocles H. Voineskos, MD, FRCSC, Anne O’Neill, MBBCh, PhD, Stefan O.P. Hofer, MD, PhD
Format: Article
Language:English
Published: Wolters Kluwer 2023-06-01
Series:Plastic and Reconstructive Surgery, Global Open
Online Access:http://journals.lww.com/prsgo/fulltext/10.1097/GOX.0000000000005095
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author Patrick J. Kim, BHSc
Morgan Yuan, MD
Jeremy Wu, BMSc
Lucas Gallo, MD
Kathryn Uhlman, MD
Sophocles H. Voineskos, MD, FRCSC
Anne O’Neill, MBBCh, PhD
Stefan O.P. Hofer, MD, PhD
author_facet Patrick J. Kim, BHSc
Morgan Yuan, MD
Jeremy Wu, BMSc
Lucas Gallo, MD
Kathryn Uhlman, MD
Sophocles H. Voineskos, MD, FRCSC
Anne O’Neill, MBBCh, PhD
Stefan O.P. Hofer, MD, PhD
author_sort Patrick J. Kim, BHSc
collection DOAJ
description Background:. The deep inferior epigastric artery perforator (DIEP) flap is widely used in autologous breast reconstruction. However, the technique relies heavily on nonrandomized observational research, which has been found to have high risk of bias. “Spin” can be used to inappropriately present study findings to exaggerate benefits or minimize harms. The primary objective was to assess the prevalence of spin in nonrandomized observational studies on DIEP reconstruction. The secondary objectives were to determine the prevalence of each spin category and strategy. Methods:. MEDLINE and Embase databases were searched from January 1, 2015, to November 15, 2022. Spin was assessed in abstracts and full-texts of included studies according to criteria proposed by Lazarus et al. Results:. There were 77 studies included for review. The overall prevalence of spin was 87.0%. Studies used a median of two spin strategies (interquartile range: 1–3). The most common strategies identified were causal language or claims (n = 41/77, 53.2%), inadequate extrapolation to larger population, intervention, or outcome (n = 27/77, 35.1%), inadequate implication for clinical practice (n = 25/77, 32.5%), use of linguistic spin (n = 22/77, 28.6%), and no consideration of the limitations (n = 21/77, 27.3%). There were no significant associations between selected study characteristics and the presence of spin. Conclusions:. The prevalence of spin is high in nonrandomized observational studies on DIEP reconstruction. Causal language or claims are the most common strategy. Investigators, reviewers, and readers should familiarize themselves with spin strategies to avoid misinterpretation of research in DIEP reconstruction.
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spelling doaj.art-35d7a096cdbe4b8fb8086300c18fe4a62023-06-30T01:49:19ZengWolters KluwerPlastic and Reconstructive Surgery, Global Open2169-75742023-06-01116e509510.1097/GOX.0000000000005095202306000-00048“Spin” in Observational Studies in Deep Inferior Epigastric Perforator Flap Breast Reconstruction: A Systematic ReviewPatrick J. Kim, BHSc0Morgan Yuan, MD1Jeremy Wu, BMSc2Lucas Gallo, MD3Kathryn Uhlman, MD4Sophocles H. Voineskos, MD, FRCSC5Anne O’Neill, MBBCh, PhD6Stefan O.P. Hofer, MD, PhD7From the * Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada† Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada‡ Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada§ Division of Plastic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada.† Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada† Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada† Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada† Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, CanadaBackground:. The deep inferior epigastric artery perforator (DIEP) flap is widely used in autologous breast reconstruction. However, the technique relies heavily on nonrandomized observational research, which has been found to have high risk of bias. “Spin” can be used to inappropriately present study findings to exaggerate benefits or minimize harms. The primary objective was to assess the prevalence of spin in nonrandomized observational studies on DIEP reconstruction. The secondary objectives were to determine the prevalence of each spin category and strategy. Methods:. MEDLINE and Embase databases were searched from January 1, 2015, to November 15, 2022. Spin was assessed in abstracts and full-texts of included studies according to criteria proposed by Lazarus et al. Results:. There were 77 studies included for review. The overall prevalence of spin was 87.0%. Studies used a median of two spin strategies (interquartile range: 1–3). The most common strategies identified were causal language or claims (n = 41/77, 53.2%), inadequate extrapolation to larger population, intervention, or outcome (n = 27/77, 35.1%), inadequate implication for clinical practice (n = 25/77, 32.5%), use of linguistic spin (n = 22/77, 28.6%), and no consideration of the limitations (n = 21/77, 27.3%). There were no significant associations between selected study characteristics and the presence of spin. Conclusions:. The prevalence of spin is high in nonrandomized observational studies on DIEP reconstruction. Causal language or claims are the most common strategy. Investigators, reviewers, and readers should familiarize themselves with spin strategies to avoid misinterpretation of research in DIEP reconstruction.http://journals.lww.com/prsgo/fulltext/10.1097/GOX.0000000000005095
spellingShingle Patrick J. Kim, BHSc
Morgan Yuan, MD
Jeremy Wu, BMSc
Lucas Gallo, MD
Kathryn Uhlman, MD
Sophocles H. Voineskos, MD, FRCSC
Anne O’Neill, MBBCh, PhD
Stefan O.P. Hofer, MD, PhD
“Spin” in Observational Studies in Deep Inferior Epigastric Perforator Flap Breast Reconstruction: A Systematic Review
Plastic and Reconstructive Surgery, Global Open
title “Spin” in Observational Studies in Deep Inferior Epigastric Perforator Flap Breast Reconstruction: A Systematic Review
title_full “Spin” in Observational Studies in Deep Inferior Epigastric Perforator Flap Breast Reconstruction: A Systematic Review
title_fullStr “Spin” in Observational Studies in Deep Inferior Epigastric Perforator Flap Breast Reconstruction: A Systematic Review
title_full_unstemmed “Spin” in Observational Studies in Deep Inferior Epigastric Perforator Flap Breast Reconstruction: A Systematic Review
title_short “Spin” in Observational Studies in Deep Inferior Epigastric Perforator Flap Breast Reconstruction: A Systematic Review
title_sort spin in observational studies in deep inferior epigastric perforator flap breast reconstruction a systematic review
url http://journals.lww.com/prsgo/fulltext/10.1097/GOX.0000000000005095
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