Most Read Articles
3 days ago
Nonsteroidal anti-inflammatory drugs (NSAIDs) appear to increase the risk of major bleeding, stroke or systemic embolism, and hospitalization among patients with atrial fibrillation (AF), suggest the results of the RE-LY* trial. Moreover, there is no difference in the safety and efficacy of dabigatran etexilate (DE) 150 and 110 mg twice daily relative to warfarin.
Stephen Padilla, 6 days ago
Diabetic patients in a decompensated state and who develop type 2 myocardial infarction (MI) have an increased risk for mortality and major adverse cardiac events (MACE), according to a new study. In addition, these patients are potentially at risk for undiagnosed coronary artery disease.
14 Jul 2018
Chocolate consumption is not associated with risk of coronary heart disease (CHD), stroke or both combined in postmenopausal women free of pre-existing major chronic disease, a study suggests.
Yesterday
Although many patients with atopic dermatitis (AD) use antihistamines, no high-level evidence exists to prove that nonsedating antihistamines reduce itch in patients with AD or provide benefit in controlling AD symptoms, except perhaps sleep and AD comorbidities such as allergic rhinitis, according to a study.

Clinical genetic testing in HBOC syndrome

Dr Joslyn Ngu
04 Dec 2017

Hereditary breast and ovarian cancer (HBOC) syndrome, which is primarily caused by BRCA1 and BRCA2 mutations, make up 8 to 10 percent of all breast cancers, says a senior consultant.

The inheritance pattern is autosomal dominant and rarely de novo, said Associate Professor Joanne Ngeow Yuen Yie, head of the Cancer Genetics Service, National Cancer Centre Singapore and senior consultant in Division of Medical Oncology at the same centre.

In those with HBOC syndrome, the risk of developing breast cancer by age 70 is 56 to 87 percent, and the risk of developing ovarian cancer is 27 to 44 percent by the age of 75, she said. Besides elevated risk of breast and ovarian cancer, those with HBOC syndrome is also at a higher risk of developing prostate cancer, melanoma and pancreatic cancer.

Genetic counselling for HBOC syndrome should be provided to those with a personal history of or close family member with, for instance: ovarian, fallopian tube or primary peritoneal cancer; breast cancer diagnosed before the age of 50; and men with breast cancer, explained Ngeow.

Currently, there are more than 400 hereditary cancer syndromes identified and the number will increase, she said. Pre- and post-genetic test counselling are important so there is shared decision-making for gene-directed management.

Panel testing will be the way forward. As it is new, there will be pitfalls and clinicians need to be aware of them, Ngeow concluded.

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Most Read Articles
3 days ago
Nonsteroidal anti-inflammatory drugs (NSAIDs) appear to increase the risk of major bleeding, stroke or systemic embolism, and hospitalization among patients with atrial fibrillation (AF), suggest the results of the RE-LY* trial. Moreover, there is no difference in the safety and efficacy of dabigatran etexilate (DE) 150 and 110 mg twice daily relative to warfarin.
Stephen Padilla, 6 days ago
Diabetic patients in a decompensated state and who develop type 2 myocardial infarction (MI) have an increased risk for mortality and major adverse cardiac events (MACE), according to a new study. In addition, these patients are potentially at risk for undiagnosed coronary artery disease.
14 Jul 2018
Chocolate consumption is not associated with risk of coronary heart disease (CHD), stroke or both combined in postmenopausal women free of pre-existing major chronic disease, a study suggests.
Yesterday
Although many patients with atopic dermatitis (AD) use antihistamines, no high-level evidence exists to prove that nonsedating antihistamines reduce itch in patients with AD or provide benefit in controlling AD symptoms, except perhaps sleep and AD comorbidities such as allergic rhinitis, according to a study.