D
Douglas Tjandra
Researcher at Royal Melbourne Hospital
Publications - 18
Citations - 505
Douglas Tjandra is an academic researcher from Royal Melbourne Hospital. The author has contributed to research in topics: Lynch syndrome & Medicine. The author has an hindex of 5, co-authored 12 publications receiving 220 citations. Previous affiliations of Douglas Tjandra include University of Melbourne.
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Journal ArticleDOI
Cancer risks by gene, age, and gender in 6350 carriers of pathogenic mismatch repair variants: findings from the Prospective Lynch Syndrome Database
Mev Dominguez-Valentin,Julian R. Sampson,Toni T. Seppälä,Sanne W. ten Broeke,John-Paul Plazzer,Sigve Nakken,Christoph Engel,Stefan Aretz,Mark A. Jenkins,Lone Sunde,Lone Sunde,Inge Bernstein,Gabriel Capellá,Francesc Balaguer,Huw D. Thomas,D. Gareth Evans,D. Gareth Evans,John Burn,Marc S. Greenblatt,Eivind Hovig,Wouter H. de Vos tot Nederveen Cappel,Rolf H. Sijmons,Lucio Bertario,Maria Grazia Tibiletti,Giulia Martina Cavestro,Annika Lindblom,Adriana Della Valle,Francisco López-Köstner,Nathan Gluck,Lior H. Katz,Karl Heinimann,Carlos A. Vaccaro,Reinhard Büttner,Heike Görgens,Elke Holinski-Feder,Monika Morak,Stefanie Holzapfel,Robert Hüneburg,Magnus von Knebel Doeberitz,Magnus von Knebel Doeberitz,Markus Loeffler,Nils Rahner,Hans K. Schackert,Verena Steinke-Lange,Wolff Schmiegel,Deepak Vangala,Kirsi Pylvänäinen,Laura Renkonen-Sinisalo,Laura Renkonen-Sinisalo,John L. Hopper,Aung Ko Win,Robert W. Haile,Noralane M. Lindor,Steven Gallinger,Loic Le Marchand,Polly A. Newcomb,Jane C. Figueiredo,Stephen N. Thibodeau,Karin Wadt,Christina Therkildsen,Henrik Okkels,Zohreh Ketabi,Leticia Moreira,Ariadna Sánchez,Miquel Serra-Burriel,Marta Pineda,Matilde Navarro,Ignacio Blanco,Kate Green,Fiona Lalloo,Emma J Crosbie,James Hill,Oliver G. Denton,Ian M. Frayling,Einar Andreas Rødland,Hans F. A. Vasen,Miriam Mints,Florencia Neffa,Patricia Esperon,Karin Alvarez,Revital Kariv,Guy Rosner,Tamara Alejandra Piñero,María Laura Gonzalez,Pablo Kalfayan,Douglas Tjandra,Ingrid Winship,Ingrid Winship,Finlay A. Macrae,Finlay A. Macrae,Gabriela Möslein,Jukka-Pekka Mecklin,Maartje Nielsen,Pål Møller,Pål Møller +94 more
TL;DR: Management guidelines for Lynch syndrome may require revision in light of these different gene and gender-specific risks and the good prognosis for the most commonly associated cancers.
Journal ArticleDOI
Lack of association between screening interval and cancer stage in Lynch syndrome may be accounted for by over-diagnosis; a prospective Lynch syndrome database report.
Toni T. Seppälä,Toni T. Seppälä,Aysel Ahadova,Mev Dominguez-Valentin,Finlay A. Macrae,Finlay A. Macrae,D. Gareth Evans,Christina Therkildsen,Julian R. Sampson,Rodney J. Scott,John Burn,Gabriela Möslein,Inge Bernstein,Elke Holinski-Feder,Kirsi Pylvänäinen,Laura Renkonen-Sinisalo,Anna Lepistö,Charlotte Kvist Lautrup,Annika Lindblom,John-Paul Plazzer,Ingrid Winship,Ingrid Winship,Douglas Tjandra,Lior H. Katz,Stefan Aretz,Robert Hüneburg,Stefanie Holzapfel,Karl Heinimann,Adriana Della Valle,Florencia Neffa,Nathan Gluck,Wouter H. de Vos tot Nederveen Cappel,Hans F. A. Vasen,Monika Morak,Verena Steinke-Lange,Christoph Engel,Nils Rahner,Wolff Schmiegel,Deepak Vangala,Huw Thomas,Kate Green,Fiona Lalloo,Emma J Crosbie,James Hill,Gabriel Capellá,Marta Pineda,Matilde Navarro,Ignacio Blanco,Sanne W. ten Broeke,Maartje Nielsen,Ken Ljungmann,Sigve Nakken,Noralane M. Lindor,Ian M. Frayling,Eivind Hovig,Eivind Hovig,Lone Sunde,Matthias Kloor,Jukka-Pekka Mecklin,Mette Kalager,Mette Kalager,Mette Kalager,Pål Møller +62 more
TL;DR: The CRC stage and interval since last colonoscopy were not correlated, which is in conflict with the accelerated adenoma-carcinoma paradigm, and raises the possibility that some CRCs in path_MMR carriers may spontaneously disappear.
Journal ArticleDOI
Survival by colon cancer stage and screening interval in Lynch syndrome: a prospective Lynch syndrome database report
Mev Dominguez-Valentin,Toni T. Seppälä,Toni T. Seppälä,Julian R. Sampson,Finlay A. Macrae,Finlay A. Macrae,Ingrid Winship,Ingrid Winship,D. Gareth Evans,Rodney J. Scott,John Burn,Gabriela Möslein,Inge Bernstein,Kirsi Pylvänäinen,Laura Renkonen-Sinisalo,Laura Renkonen-Sinisalo,Anna Lepistö,Anna Lepistö,Annika Lindblom,John-Paul Plazzer,Douglas Tjandra,Huw Thomas,Kate Green,Fiona Lalloo,Emma J Crosbie,James Hill,Gabriel Capellá,Marta Pineda,Matilde Navarro,Joan Vidal,Karina Rønlund,Randi Thyregaard Nielsen,Mette Karen Yilmaz,Louise Laurberg Elvang,Lior H. Katz,Maartje Nielsen,Sanne W. ten Broeke,Sigve Nakken,Eivind Hovig,Eivind Hovig,Lone Sunde,Matthias Kloor,Matthias Kloor,Magnus von Knebel Doeberitz,Magnus von Knebel Doeberitz,Aysel Ahadova,Aysel Ahadova,Noralane M. Lindor,Verena Steinke-Lange,Elke Holinski-Feder,Jukka-Pekka Mecklin,Pål Møller +51 more
TL;DR: In path_MLH1 and path_MSH2 carriers, more advanced colon cancer stage was associated with poorer survival, whereas time since previous colonoscopy was not, and these results may be in conflict with the view that follow-up of path_MMR variant carriers with Colonoscopy intervals of less than 3 years provides significant benefit.
Journal ArticleDOI
Risk-reducing hysterectomy and bilateral salpingo-oophorectomy in female heterozygotes of pathogenic mismatch repair variants: a Prospective Lynch Syndrome Database report
Mev Dominguez-Valentin,Emma J Crosbie,Christoph Engel,Stefan Aretz,Stefan Aretz,Finlay A. Macrae,Finlay A. Macrae,Ingrid Winship,Ingrid Winship,Gabriel Capellá,Huw Thomas,Sigve Nakken,Eivind Hovig,Maartje Nielsen,Rolf H. Sijmons,Lucio Bertario,Bernardo Bonanni,Maria Grazia Tibiletti,Giulia Martina Cavestro,Miriam Mints,Nathan Gluck,Lior H. Katz,Karl Heinimann,Carlos A. Vaccaro,Kate Green,Fiona Lalloo,James Hill,Wolff Schmiegel,Deepak Vangala,Claudia Perne,Claudia Perne,Hans Georg Strauß,Johanna Tecklenburg,Elke Holinski-Feder,Verena Steinke-Lange,Jukka-Pekka Mecklin,John-Paul Plazzer,Marta Pineda,Matilde Navarro,Joan Vidal,Revital Kariv,Guy Rosner,Tamara Alejandra Piñero,María Laura Gonzalez,Pablo Kalfayan,Neil A J Ryan,Sanne W. ten Broeke,Mark A. Jenkins,Lone Sunde,Lone Sunde,Inge Bernstein,John Burn,Marc S. Greenblatt,Wouter H. de Vos tot Nederveen Cappel,Adriana Della Valle,Francisco Lopez-Koestner,Karin Alvarez,Reinhard Büttner,Heike Görgens,Monika Morak,Stefanie Holzapfel,Robert Hüneburg,Magnus von Knebel Doeberitz,Magnus von Knebel Doeberitz,Markus Loeffler,Nils Rahner,Jürgen Weitz,Kirsi Pylvänäinen,Laura Renkonen-Sinisalo,Anna Lepistö,Annika Auranen,John L. Hopper,Aung Ko Win,Robert W. Haile,Noralane M. Lindor,Steven Gallinger,Loic Le Marchand,Polly A. Newcomb,Jane C. Figueiredo,Stephen N. Thibodeau,Christina Therkildsen,Henrik Okkels,Zohreh Ketabi,Oliver G. Denton,Einar Andreas Rødland,Hans F. A. Vasen,Florencia Neffa,Patricia Esperon,Douglas Tjandra,Douglas Tjandra,Gabriela Möslein,Julian R. Sampson,D. Gareth Evans,D. Gareth Evans,Toni T. Seppälä,Toni T. Seppälä,Pål Møller +96 more
TL;DR: Findings may aid decision making for women with LS who are considering RRS and little benefit is gained by performing RRS before 40 years of age and premenopausal BSO in path_MSH6 and path_PMS2 heterozygotes has no measurable benefit for mortality.
Journal ArticleDOI
Complications of cold versus hot snare polypectomy of 10-20 mm polyps: A retrospective cohort study.
Shara N. Ket,Dileep Mangira,Allysia Ng,Douglas Tjandra,Ja H Koo,Richard La Nauze,Andrew J. Metz,Alan C. Moss,Alan C. Moss,Gregor J. Brown,Gregor J. Brown +10 more
TL;DR: Cold snare polypectomy is safe and efficacious for removing polyps <10 mm with reduced rates of delayed postpolypectomy bleeding and postpolypectsomy syndrome; however, further evidence is required to establish its safety.