Andropause – explained by Dr Derek Koh
Andropause
What is testosterone?
Symptoms & outcome of andropause
Andropause self-assessment
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Dr Derek Koh graduated in 1992 with a basic medical degree & subsequently received his post-graduate diploma in Family Medicine, both from the National University of Singapore. He is also Board Certified in Anti Aging Medicine & has attained his Fellowship with the American Board of Anti-Aging and Rejuvenation Medicine.
Dr Koh has completed local certifications in Practical Andrology conducted by the Academy of Men’s Health (Singapore) as well as post graduate training in Nutritional Protocols accredited by the Australasian College of Nutritional & Environmental Medicine. He is an EIMS certified physician in Exercise Prescription, an initiative launched by the American College of Sports Medicine.
Prior to this, Dr Koh was heading a health screening & wellness center in a major private hospital since 2008. His key interest is in Healthy Aging thru early detection and subsequent prevention thru lifestyle choices.
Dr Koh is a strong believer that everyone can add quality years to their lives while embracing an active lifestyle. He enjoys a variety of sports at leisure, including tennis & swimming.
A couple of things happen as we age. The fat compartments under the eyes above the cheeks shrink (atrophy is the scientific term). Thus reducing support for the skin and muscles around the eyes. The bones around the eye sockets also remodel (change shape) which causes even greater loss of support for the overlying soft tissues. This sagging in the under eye area gives rise to the signs of aging. And dermal fillers are a great way to reduce the signs of under eye aging.

The treatment however is relatively simple. Dermal fillers when skillfully injected into the fat compartments in the under-eye area provides support and resolves most of the above problem features. The dermal filler is carefully placed using a cannula (a needle with a rounded tip) to minimize trauma. The dermal filler spreads evenly over the areas treated. Lumpiness is rare with the cannula technique of injection. Bruising can sometime occur even with a cannula but are usually quite minimal.
As far as safety is concern, opinion differs. But cannulas a generally accepted as the gentle method in this area while blood vessels are a plenty. Here is a paper by Dr David Loh on safety in filler injections
As for the crepey skin in the under eye area, the dermal fillers can help somewhat, but usually a bit of laser to tighten up the skin, and reduce the fine lines, and that’s all it takes to brighten up the look. The fractional CO2 laser is good, but has a bit of downtime. Otherwise, Sylfirm or Thermage eyes are not too bad too.
September 2019
PRESS RELEASE
A medical case report by David Loh Surgery has been awarded the PRS Global Open 2019 ‘Best Case Report’ (Gold) by international medical journal Plastic & Reconstructive Surgery.
With facial fillers being a widely available aesthetic procedure to temporarily reduce the appearance of wrinkles, or contour faces, there have been some cases where patients have developed features of “impending skin necrosis”: discolouration of the skin due to the premature death of skin cells, in reaction to soft tissue augmentation resulting from the injection. While rare, this complication may occur even under the care of experienced injectors.
David Loh Surgery’s founder Dr David Loh and partner Dr Phoon Yi Shan, who is in charge of the branch clinic at Novena Medical Centre, together with two other doctors jointly authored a case report on such an incident which was successfully managed with prompt diagnosis and treatment.
Entitled Successfully Managing Impending Skin Necrosis following Hyaluronic Acid Filler Injection, using High-Dose Pulsed Hyaluronidase, the paper was first published by PRS Global Open in its February 2018 issue. Using data collected on the article’s view count and sharing activity, among others, David Loh Surgery’s case report was then scored and selected by the journal’s editorial and publishing staff for the award.
“We are very honoured to represent Singapore in contributing to the global body of medical knowledge with our recent case report on successfully managing hyaluronic acid filler-induced impending filler necrosis,” says Dr David Loh, founder and medical director of David Loh Surgery.
“This accolade from PRS Global Open, as an open-access and peer-reviewed international journal, bears testament to our commitment to furthering safety and standards in aesthetic medicine. The culture of knowledge sharing and continuous learning is very much in line with our philosophy at David Loh Surgery,” he adds.
Plastic and Reconstructive Surgery is the official publication of the American Society of Plastic Surgeons. The title launched Plastic and Reconstructive Surgery – Global Open, in April 2013 as a companion journal with an intention to globalise plastic surgery research, collaboration, and best practice sharing through its open access platform.
PRS Global Open holds its annual Best Paper Awards event with the aim of recognising the best new papers by both US and international authors across multiple categories including that of Best Case Report under which Gold, Silver and Bronze Awards are presented.
David Loh Surgery’s award-winning case report can viewed in full here:
https://journals.lww.com/prsgo/pages/collectiondetails.aspx?TopicalCollectionId=56