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Biomedical subjects

V Mitz

Publications and source records attributed to V Mitz.

At least 55 records · Page 3Linked to original sources
PubMed1985

[Transformation of skeletal muscle by progressive sequential stimulation with a view toward its use as a myocardial substitute].

Progressive sequential stimulation of a skeletal muscle using trains of 30 Hz impulses with increasing frequencies from 20/min. to 80/min. within 3 months, allowed us to obtain in goats a transformation of the fast twitch glycolytic muscular fibers into fatigue resistant slow twitch oxidative muscular fibers. The conditioned muscle can be used in the treatment of various myocardial lesions or to reinforce cardiac contractility in severe cardiac insufficiencies. The first clinical case successfully operated upon is reported.

Adult↗
PubMed1984

Functional sequelae after ulnar nerve repair. Study of forty-nine cases.

The full picture of functional ulnar deficiency, following suture or grafting, was studied and analyzed by two of the authors, who followed this series of patients on a long-term basis. The patients were tested using sphygmometric rubber bulbs in other to determine the overall closing force of the hand (making a fist), and the force of the pinch between the thumb and index ("energetic pinch"). Moreover, radionuclide vascular tests were used in order to find an eventual etiology of the "cold" disease, present in 2/3 of these injured hands. The principal functional deficiencies which bothered the patients and which we were able to demonstrate are as follows: deficient adduction of the thumb: the pinch between the thumb and index is diminished by approximately 50%, impairment, in the spreading of fingers, impairment in the overall force of the grasp, ulnar clawing which may embarrass function of the hand one year after the operation in one fourth of the cases. Therefore it appeared logical to propose an adduction plasty at the same time of repair, whether it was a primary suture or a secondary nerve graft. This adduction plasty uses the flexor digitorum sublimis of the ring finger which is rerouted and passed behind the profondus tendons and brought over to the lateral sesamoid bone of the thumb. This transfer is prolonged and tacked to the extensor pollicis longus in order to prevent the hyperflexion of the proximal phalanx of the thumb of which patients hardly ever complain but which denotes the severeness of ulnar nerve injury. An excellent correlation exists between the severeness of the functional deficiency and the importance of Froment's sign. The study of the other residual deficiencies shows that the restoration of the first dorsal interosseus, the reinforcement of the force of the flexores digitorum profundus of the middle and fourth fingers and of the intrinsics does not seem to be justified on an emergency basis. Zancolli's operation, which has been advocated by certain authors as an emergency procedure, does not seem to be necessary at this stage of repair, but remains a very interesting palliative procedure one year after the nerve repair if still judged necessary. Several clinical examples illustrate the value of long-term follow-up of these operated patients.

Adolescent↗
PubMed1982

[Carpal tunnel syndrome. Cosmetic incision (author's transl)].

The median nerve compressed in the carpal tunnel can be released by an incision in the "line of life", a natural fold along the axis of the third metacarpal bone. By sectioning the carpal tunnel in the palm of the hand, on the cubital side of the median nerve, division of the external branch and of the sensory cutaneous rami of the nerve can be avoided. Hypertrophic scars are prevented. The part of the carpal tunnel situated in the forearm can be freed by a subcutaneous incision if needed, but compression at that level is much less frequent than in the palm of the hand.

Carpal Tunnel Syndrome↗
PubMed1982

[Retromuscular implantation of mammary prosthesis for reconstruction of the breast: report on 56 cases (author's transl)].

Though retromuscular implantation of mammary prosthesis for breast reconstruction presents certain advantages, a retrospective study of the results of 56 such prostheses implanted in 38 patients demonstrated certain complications related to this procedure. These included: ectopy, secondary migration, poor aesthetic appearance during muscle contractions, formation of a hard shell (33 p. cent of cases), and residual mammary asymmetry. However, the advantages related to the retromuscular site of implantation are sufficiently marked for this technique, described in detail, to be employed in certain chosen indications: sequelae to subcutaneous fatty mammectomies ("benign" breast), mammary reconstruction after resection for cancer or radiodermatitis, and perhaps after the use of musculocutaneous flap from the large dorsal muscles ("malignant" breast), and to increase mammary size in cases of agenesis or total aplasia (Poland's syndrome, "unesthetic"" breast).

Breast↗