Patient Benefits of HemaClear: No Nerve Injury
HemaClear by OHK medical devices
HemaClear Exsanguination Tourniquet A Sterile & Bloodless Surgical Field
In over 1,500,000 cases performed with HemaClear?, no nerve injury was reported.
The incidence of Pneumatic Tourniquet nerve injury is varying from 1:4000 in general to 7.7% in procedures lasting more than 2 hours, Mayo Clinic. TourniquetRelated Iatrogenic Femoral Nerve Palsy after Knee Surgery: Case Report and Review of the Literature (hindawi.com);
Anesthetic, Patient, and Surgical Risk Factors for Neurologi... : Anesthesia & Analgesia (lww.com)
The mechanism of pneumatic-tourniquet-induced nerve damage was revealed by Ochoa et Al (Ochoa J, Fowler TJ, and Gilliatt RW. Anatomical changes in peripheral nerves compressed by a pneumatic tourniquet. J Anat (1972), 113, 3, 433-455.) who found that the nerves compressed under the tourniquet elongated and telescoped into themselves (picture) at the Nodes of Ranvier where the nerve is weaker. Axonal disruption is clearly seen in the electron microscopy image.
The telescoping was found only at the two edges of the cuff and was directly attributed to its width. Another mechanism described by Ochoa et Al is related to the steep pressure gradient at the ends of the cuff, causing shearing force on the nerves. Both mechanisms do not exist with the HemaClear.
Physician at Va Health Care Systems
1 年I'm glad that you were able to have 1,500,000 cases without a nerve injury. The first time that I used this , my patient presented with an anterior interosseous motor palsy and a median sensory deficit for an ulnar nerve transposition. I probably won't use this device again. The sizing was correct according to the manufacturer's guidelines, by the way.