What is Weight Loss after Bariatric Surgery Expressed in Percentage Total Weight Loss (%TWL)? An Updated Systematic Review.

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Title: What is Weight Loss after Bariatric Surgery Expressed in Percentage Total Weight Loss (%TWL)? An Updated Systematic Review.
Authors: Franken R; Department of Surgery, Spaarne Gasthuis, Haarlem, Netherlands. rfranken@spaarnegasthuis.nl., Hers F; Department of Surgery, Spaarne Gasthuis, Haarlem, Netherlands., El Ajraoui R; Department of Surgery, Spaarne Gasthuis, Haarlem, Netherlands., Tieken K; Department of Surgery, Spaarne Gasthuis, Haarlem, Netherlands., de Vries R; Medical Library, Amsterdam UMC Location VUmc, Amsterdam, Netherlands., Souverein D; Regional Public Health Laboratory Kennemerland, Streeklab Haarlem, Haarlem, Netherlands., Nieuwdorp M; Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, Netherlands., Gerdes V; Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, Netherlands.; Department of Internal Medicine, Spaarne Gasthuis, Haarlem, Netherlands., van de Laar A; Department of Surgery, Spaarne Gasthuis, Haarlem, Netherlands.
Source: Obesity surgery [Obes Surg] 2026 Jul; Vol. 36 (7), pp. 3932-3946. Date of Electronic Publication: 2026 Jun 12.
Publication Type: Systematic Review; Journal Article; Review
Journal Info: Publisher: Springer Science + Business Media Country of Publication: United States NLM ID: 9106714 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1708-0428 (Electronic) Linking ISSN: 09608923 NLM ISO Abbreviation: Obes Surg Subsets: MEDLINE
Database: MEDLINE Ultimate
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  Data: What is Weight Loss after Bariatric Surgery Expressed in Percentage Total Weight Loss (%TWL)? An Updated Systematic Review.
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  Data: <searchLink fieldCode="AU" term="%22Franken+R%22">Franken R</searchLink>; Department of Surgery, Spaarne Gasthuis, Haarlem, Netherlands. rfranken@spaarnegasthuis.nl.<br /><searchLink fieldCode="AU" term="%22Hers+F%22">Hers F</searchLink>; Department of Surgery, Spaarne Gasthuis, Haarlem, Netherlands.<br /><searchLink fieldCode="AU" term="%22El+Ajraoui+R%22">El Ajraoui R</searchLink>; Department of Surgery, Spaarne Gasthuis, Haarlem, Netherlands.<br /><searchLink fieldCode="AU" term="%22Tieken+K%22">Tieken K</searchLink>; Department of Surgery, Spaarne Gasthuis, Haarlem, Netherlands.<br /><searchLink fieldCode="AU" term="%22de+Vries+R%22">de Vries R</searchLink>; Medical Library, Amsterdam UMC Location VUmc, Amsterdam, Netherlands.<br /><searchLink fieldCode="AU" term="%22Souverein+D%22">Souverein D</searchLink>; Regional Public Health Laboratory Kennemerland, Streeklab Haarlem, Haarlem, Netherlands.<br /><searchLink fieldCode="AU" term="%22Nieuwdorp+M%22">Nieuwdorp M</searchLink>; Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, Netherlands.<br /><searchLink fieldCode="AU" term="%22Gerdes+V%22">Gerdes V</searchLink>; Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, Netherlands.; Department of Internal Medicine, Spaarne Gasthuis, Haarlem, Netherlands.<br /><searchLink fieldCode="AU" term="%22van+de+Laar+A%22">van de Laar A</searchLink>; Department of Surgery, Spaarne Gasthuis, Haarlem, Netherlands.
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  Data: <searchLink fieldCode="JN" term="%229106714%22">Obesity surgery</searchLink> [Obes Surg] 2026 Jul; Vol. 36 (7), pp. 3932-3946. <i>Date of Electronic Publication: </i>2026 Jun 12.
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Springer+Science+%2B+Business+Media%22">Springer Science + Business Media </searchLink><i>Country of Publication: </i>United States <i>NLM ID: </i>9106714 <i>Publication Model: </i>Print-Electronic <i>Cited Medium: </i>Internet <i>ISSN: </i>1708-0428 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2209608923%22">09608923 </searchLink><i>NLM ISO Abbreviation: </i>Obes Surg <i>Subsets: </i>MEDLINE
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      – Type: doi
        Value: 10.1007/s11695-026-08766-3
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      – Code: eng
        Text: English
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        StartPage: 3932
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      – TitleFull: What is Weight Loss after Bariatric Surgery Expressed in Percentage Total Weight Loss (%TWL)? An Updated Systematic Review.
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            NameFull: Franken R
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            – D: 01
              M: 07
              Text: 2026 Jul
              Type: published
              Y: 2026
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              Value: 36
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