Tension hair loss

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Tension hair loss is a form of hereditary hair loss (alopecia androgenetica). The approach is based on an interdisciplinary explanatory model between neurology and dermatology : Strong tension in the scalp muscles (e.g. due to stress , see also tension headache ) reduces the cross-section of the fine blood vessels under the scalp. This leads to an undersupply of these muscles with blood, which supports the cell biological processes of the hair follicles as a transport system for nutrients and oxygen .

In the case of hereditary hypersensitivity to the hormone derivative DHT (hereditary component), this is more likely to accumulate in the areas of highest voltage (and thus the worst supply). The growth phases in the hair roots would be interrupted, degeneration of the follicle, hair loss and, finally, complete death of the hair root would take place.

With this explanatory model, the typical course of hereditary hair loss according to the Hamilton-Norwood scheme ( receding hairline , forehead, parting, tonsure) can also be explained for the first time. The typical course arises from the different tension conditions on the skull, depending on the thickness of the scalp, the position of the muscles and the shape of the skeletal skull.

history

The causal relationship was described for the first time by J. Pohl-Pinens in 1875. In 1903, Moritz Schein's approach was taken up again, explained in the context of the system and presented in detail.

However, neither authors made any suggestions for treatment.

Treatment methods

In the late 1970s and early 1980s, the subject of tension hair loss was taken up again dermatologically with regard to possible treatment methods. During this time, some doctors achieved lasting success with the help of surgical separation of the scalp and muscles in patients. However, surgical intervention was not able to establish itself on the market as a treatment method.

In 1990 the Japanese S. Toshitani took up the topic relevant to treatment. He developed a device (Scalp Tension Relaxer), the effect of which is based on the mechanical-pneumatic relaxation of the upper head muscles (with the help of an inflatable hoop that can be placed on the head, the upper head muscles are pushed upwards, counteracting tension). In a clinical study on 40 patients over a period of twelve months, Toshitani demonstrated that the reduced scalp tension could drastically reduce hair loss in patients regardless of age and degree of hair loss (levels according to the Hamilton-Norwood scheme ) and hair- New growth was generated.

In 2001 ML Schwartz and BJ Freund - at the same time as research in Germany - developed a drug treatment method and applied for a patent. The patient's scalp is relaxed by a muscle-relaxing injection (with botulinum toxin A).

See also

• Trichodynia

Individual evidence

1. ↑ Berlin Clinical Weekly , No. 4.
2. ↑ On the development of baldness . In: Berliner Klinische Wochenschrift , May 21, 1903
3. ↑ S Toshitani, J Nakayama, T Yahata, M Yasuda, H Urabe: A new apparatus for hair regrowth in male-pattern baldness . In: The Journal of Dermatology . 17, No. 4, April 1990, pp. 240-246. PMID 2365903 .
4. ↑ ML Schwartz, BJ Freund: Method to reduce hair loss and stimulate hair regrowth . Ontario 2001 patent specification and description

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