Archives

Five Different Types of FUE Punches

September 25, 2018

FUE is a hair transplant technique that is gaining popularity. There are many different types of punches used in the FUE hair transplant procedure and Dr. Nakatsui will choose which one is best for you.  In the video below, Dr. Nakatsui goes through some of the punches he has used over the years. As did virtually all physicians doing FUE in the early days, he first started using a manual punch with a sharp, smooth edge. This penetrated the skin well but had a high relatively transection rate. The next advance was the development of the dull punch. This was again a manual punch and had the advantage of decreasing the amount of transection as the dull edge was less likely to transect a hair. This did work but had its own disadvantages, such as requiring a large amount of force to penetrate the skin in some patients.

The next idea was to use a motorized device to power the sharp and dull FUE tips. This made things easier but with the added speed of rotation came a slightly increased risk of hair transection. Even a dull punch can cut through a hair when rotating fast enough!

Subsequent to this came the development of the dull hex punch, as well as the fluted or trumpet punch, as well as the serrated punch.

Watch this video as Dr. Nakatsui discusses the different punches he has used, as well as the ones he favors currently.

Read more about FUE here

 

 

Five Things You May Not Know About Finasteride

September 23, 2018

finasteride propecia chemical drawing1. Finasteride really does work

Finasteride (Propecia) is a medication that has been used for years for the management of male pattern hair loss. It is a 5-alpha reductase inhibitor, which decreases levels of dihydrotestosterone (DHT). The pivotal studies showed significant benefit for men with respect to slowing down hair loss. In addition, a meta-analysis (an analysis of multiple studies on the same subject) by Gupta and Charrette showed that 5-alpha reductase inhibitors are significantly more effective than placebo in increasing hair counts.

2. It does have sexual side effects but it is not high risk

A very common question is about the sexual side effects of Propecia. Sexual side effects from finasteride have been well-described and include erectile dysfunction and decreased libido. However, the true risk of adverse sexual side effects remains controversial. Some meta-analyses show an increased risk and some show no increased risk. However, a recent 2018 report published by Lee et al analyzed randomized, double-blind, placebo-controlled trials (the best kind) and found 15 such trials. The data from these studies were analysed together in a meta-analysis. The relative risk was approximately 1.66. In layman’s terms, if 1 out of 100 untreated people were expected to develop sexual side effects, then 1.66 out of 100 treated people would be expected to develop these side effects. This is not a huge increase.

3. It only works as long as you take it

I frequently get asked “What happens if I stop taking Propecia?” (more…)

PRP — comparison of 3 preparation systems

September 14, 2018

Arthrex PRP Platelet rich plasma for hair lossPlatelet-rich plasma (otherwise known as PRP) continues to be investigated as a treatment option for various types of hair loss. It makes intuitive sense that growth factors found in PRP would be beneficial for hair growth but results from PRP studies with respect to hair loss continue to be highly variable and it is unclear why this is the case. One possible reason is that administration regimens differ from study to study. Another possible reason is that different systems concentrate platelets to different degrees.

PRP concentration study

One small study published in the Hair Transplant Forum International in 2018  by Rose et al looked at four different systems: the Selphyl ® system, the Eclipse PRP ® system, the Arthrex ACP ® Double Syringe system, as well as generic yellow top blood collection tubes.

What did the results show?

The investigators looked at platelet counts in whole blood and platelet counts after being processed by the PRP systems. On average, the Selphyl system concentrated platelets 1.16 times, the Eclipse system concentrated platelets 3.23 times, the Arthrex system concentrated platelets 6.34 times, and the generic blood collection tubes concentrated platelets 1.67 times. (more…)

PRP — Does Platelet Rich Plasma help women with hair loss?

September 7, 2018

PRP platelet rich plasma Edmonton

This is a question that Dr. Nakatsui would love to find an answer to. When injection of platelet-rich plasma (PRP) first came out as a treatment several years ago, he was very interested and tried using

it to improve the quality of the skin but was not impressed with the results. As a result, he put this on hold until he could determine if it was truly effective or not. It sounds like a great idea but does it truly work? He is waiting to be convinced because if it works, he would gladly offer it to his patients in Edmonton again. There is evidence of effectiveness for wound and joint healing but does this extend to skin and hair?

Is there a good study on PRP?

In 2016, there was a double blind, multi-centre, placebo controlled study (the best kind of study) done that compared injection of PRP and placebo (saline) (Dermatol Surg 2016; 42:1243-1247). Investigators looked at hair counts and hair mass index along with patient-opinion survey responses. Examination of hair counts and hair mass index showed there was no significant difference between the treatment group and the placebo group 26 weeks after injection. Interestingly, however, when asked about the results of the treatment, 13% of the treatment group felt that they experienced improvements in hair loss and hair thickness, and 26.7% felt their hair felt coarser or heavier after the treatment. The hair was examined objectively by someone who had no idea which patients were injected with PRP or saline, so there was no potential for bias. In this study, about 1 out every 4 patients thought their hair improved when it actually did not.

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The HairDX test — is it useful?

September 4, 2018

Wouldn’t it be great if we had a test that simply and reliably told you whether or not you had a genetic cause for your hair loss? If we did, then you could walk into a doctor’s office or lab and find an answer in no time at all. This would also benefit doctors as we wouldn’t have to rely on using our eyes and ears to get a good history and physical. There is a test that came out about 10 years ago to do just this called HairDX. It involved a simple swab taken from your cheek and its claim was that it could reliably tell if a patient was suffering from androgenetic hair loss and thus tell the patient if he or she would benefit from hair loss medications like minoxidil and finasteride.

It is still used by some doctors today but unfortunately, this test is not as accurate as we first hoped. In fact, HairDX might only be about 70% accurate. That’s a large number of cases that are incorrectly classified.

Why does HairDX give the wrong answer?

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