Dr. Martin Yaffe

Sr Scientist, Sunnybrook Research Institute. Working to reduce death and suffering due to breast cancer. Order of Canada. Proud husband, father and grandfather.

[Dr. Martin Yaffe @MartinYaffe]

Too many women die of breast cancer unnecessarily -- early detection by screening mammography saves lives. https://t.co/KkIZJqO5lo

[Dr. Martin Yaffe @MartinYaffe]

Shell Oil should donate the oil it purchased from Russia to the Ukraine.

[Dr. Martin Yaffe @MartinYaffe]

Agree completely. But there's so much more to do. Start by removing barriers for women in their 40s to get screened. Save more lives and reduce suffering. Open Ontario breast screening to women in their 40s now.

[Doug Ford @fordnation]

October is #BreastCancerAwarenessMonth. About 1 in every 8 women will develop breast cancer in their lifetime. Early detection is critical.

This month, let’s take a moment to remember those we’ve lost, honour the survivors, and support those still fighting.

[Dr. Martin Yaffe @MartinYaffe]

Breast screening stopped during COVID. A reasonable move. Now it urgently must be re-started. Health authorities should spread the word! Learn more... https://t.co/2xm6zrMbnz

[Dr. Martin Yaffe @MartinYaffe]

Why is @Cantaskforce member Scott Klarenbach propagating inaccurate information to Family Doctors on breast cancer screening? He is undermining a lifesaving tool where benefits>>> harms. Political agenda or just his lack of knowledge? Either way, dangerous to our health!

[Dr. Martin Yaffe @MartinYaffe]

Here's a clear,sensible article on mammography screening from a doctor who has walked the walk. https://t.co/kwbNkcfjo8

[Dr. Martin Yaffe @MartinYaffe]

Methinks @cantaskforce doth protest too much. Instead of self-congratulatory tweeting, they should do their homework, read the modern science and replace their dangerous breast screening guidelines that will harm women.

[Dr. Martin Yaffe @MartinYaffe]

Modern definitions: Epstein-Barr - A virus responsible for disabling moral centre of the brain

[Dr. Martin Yaffe @MartinYaffe]

Virus responsible for disabling moral centre of the brain? - Epstein-Barr

[Dr. Martin Yaffe @MartinYaffe]

It's truly outrageous that given the flawed breast screening guidelines by @cantaskforce and the outcry from 65,000 concerned individuals, Minister Petitpas Taylor and Dr Theresa Tam haven't acted yet to review its governance, claiming "arms length". This is their responsibility!

[Dr. Martin Yaffe @MartinYaffe]

Women have a right to know if they have low, mid, or high density breasts, so they can know if their mammogram is reliable - take charge of their health and discuss w health provider. Consider ultrasound if they have very dense breasts. Ontario policy out of date!

[Dr. Martin Yaffe @MartinYaffe]

Regular mammography screening saves lives for women 40 and older, but is less accurate in dense breasts. Density also a risk factor for br cancer. Based on my old 1980s research w Dr. N Boyd, Ontario only tells women when their density is over 75%. This is antiquated ....

[Dr. Martin Yaffe @MartinYaffe]

@jennabbott65 Thanks Jenn. Opportunities to reduce death and suffering.

[Dr. Martin Yaffe @MartinYaffe]

Minister Petipas Taylor distancing herself from dangerous Task Force Recs good first step. Now she must step up and revamp dysfunctional TF.

[Dr. Martin Yaffe @MartinYaffe]

@DonDavies Over 50,000 Canadians agree with Don Davies and signed a petition demanding the guidelines be removed.

[Dr. Martin Yaffe @MartinYaffe]

Instead of endorsing (or even worse, following) dangerous Canadian Task Force Recs. on Breast Screening, Physicians should follow the lead of our Federal Health Minister, Ginette Petipas Taylor, who in Parliament distanced herself from the Task Force. A good first step.

[Dr. Martin Yaffe @MartinYaffe]

It's time to respond to @cantaskforce Canadians deserve better guidance on breast cancer screening! My concerns are described in open letter to Task Force at https://t.co/c3OjwvQ95e Sorry it's so long. Let them know what you think.

[Dr. Martin Yaffe @MartinYaffe]

Very poor judgement by @cantaskforce in posting biased anti-screening video. See my critique at https://t.co/61qLu98vfF @carlyweeks thinks this is a balanced presentation! - she needs to do some homework (I'd be glad to give her reading list). CTF has let Canadians down.

[Dr. Martin Yaffe @MartinYaffe]

@cantaskforce had the opportunity to present benefits and risks clearly and accurately, but chose to cherrypick data, incorrectly overestimating risks and ignoring modern data on benefits. Not too late to correct this! Read the literature.

[Dr. Martin Yaffe @MartinYaffe]

Better outcomes? Here's how: 1) Screening that is able to reduce incidence of advanced cancers by earlier detection is strongly associated with mortality reduction. 2) Breast ultrasound, MRI, contrast-enhanced dig mammography find cancers in dense breasts missed by mammography

[Carly Weeks @carlyweeks]

I wrote about breast density, a known risk factor for breast cancer, and the push to ensure women know whether they have it. The problem? There is little evidence showing that extra screening for tissue density will lead to better outcomes. https://t.co/io2RTgOXeZ

[Dr. Martin Yaffe @MartinYaffe]

@DrBridgetOBrien This was not an RCT. Read Prof Harry de Koning's critique of this study to learn why it has very limited value. By the way, do we know how many of the breast cancer deaths were from screen-detected cancers? Same problem with Bleyer-Welch overdiagnosis paper using SEER data.

[Dr. Martin Yaffe @MartinYaffe]

@DrBridgetOBrien Statement based on really naive assumptions by M. Baum who demanded proof that all-cause mortality is reduced by breast cancer screening. Simple statistics! This would require randomized trial of several hundred thousand women, even if screening totally eliminated br cancer.