The Piercing Technique is a special needling technique, also known as transverse insertion (Heng-ci), which can be used to successfully treat both laryngeal hemiplegia and collapsing trachea in dogs.
Simply insert a 2 inch, #32 acupuncture needle on one side of CV-23 (half a cun lateral to the point) and continue to push the needle horizontally so that the tip emerges in a similar location on the other side of CV-23. Once inserted, bend the needle into a ring; it can therefore be retained for as long as needed.After placing the needle in CV-23, insert another 2 inch, #32 acupuncture needle at CV-22 using the same procedure. Continue by inserting a third needle at ST-9 and a fourth needle at GB-21, again using the same technique. Finally, use one electro-acupuncture lead to connect (pair) the needles at CV-23 and CV-22, and a second lead to connect the needles at ST-9 and GB-21. Begin electro-acupuncture stimulation using 30 Hz for 30 minutes, performing one session every 1-2 weeks for a total of 5 sessions.
The success rate with this technique can be over 90%. The whole purpose of the Piercing Technique at these acupoints is to enable the needles to be retained for the duration of the electro-acupuncture stimulation. Unless this technique is used, it is highly likely that the needles will fall out before the treatment can be completed.