Search PubMed⌕ Search

Biomedical subjects

Y Erk

Publications and source records attributed to Y Erk.

28 records · Page 2Linked to original sources
PubMed1992

Reconstruction of postburn breast deformities.

Postburn breast deformity is a sequela of severe scar contraction of the burned chest. During the past 3 years, 24 female patients with such deformities required reconstruction, the surgery was performed in our department. These patients, the types of the deformities and the techniques used for reconstruction have been reviewed. For mild deformities (10 patients) reconstructions with skin grafts and local skin flaps were found to be satisfactory. For deformities which affected the mammary development (14 patients), mammary prostheses directly or under the soft tissue obtained by skin expansion or musculocutaneous flaps were used. In three of our patients, reduction mammaplasty or mastopexy was needed to symmetrize the breasts.

Adolescent↗
PubMed1983

Critical comparison of transcutaneous PO2 and tissue pH as indices of perfusion.

A critical laboratory evaluation of transcutaneous PO2 monitoring and tissue pH monitoring in lower abdominal island flaps based on the superficial inferior epigastric vessels in rabbits revealed that transcutaneous PO2 values correlate poorly with tissue survival under circumstances of decreased arterial inflow. The inability of the transcutaneous PO2 monitor to accurately predict viability of the flaps in this study is attributed to physiologic changes in the microcirculation and not to instrument error. Tissue pH was, in all instances, a reliable index of the perfusion status of the flaps.

Abdomen↗
PubMed1983

Vascular augmentation of skin and musculocutaneous flaps.

In a series of rats, pigs, and dogs, a method for ligating an expendable vessel and placing it under a skin flap or using the vessel to create a new pedicle (neovascular pedicle) for a musculocutaneous flap by the process of neovascularization is demonstrated. No ischemic stimulus is necessary to induce this process of transmural neovascularization.

Animals↗
PubMed1983

Tissue pH monitoring in microsurgery: a preliminary evaluation of continuous tissue pH monitoring as an indicator of perfusion disturbances in microvascular free flaps.

In an experiment using a continuous tissue pH monitoring system, selective occlusion of the vessels supplying lower abdominal island flaps in Sprague-Dawley rats resulted in predictable tissue pH changes. Arterial occlusion resulted in a rapid fall in pH. In all three experimental groups, the steepest rate of pH drop occurred during the first 30 minutes postocclusion. In a series of 9 patients who underwent microvascular free flap surgery the continuous pH monitor was employed postoperatively. Tissue pH was (and remained) normal in well-perfused free flaps. Tissue pH fell almost immediately with anastomotic failures. These findings demonstrate that pH measurement offers the microvascular surgeon a new, simple, and reliable approach to perfusion assessment in free flaps. Perhaps improved survival rates will result from earlier anastomotic exploration in compromised free flaps that exhibit falling pH values.

Adult↗
PubMed1983

A modified gluteus maximus musculocutaneous free flap based on the inferior gluteal vessels.

A single case is reported of a large posterior calf defect, involving skin, subcutaneous tissue, and underlying muscle, in which contour is restored employing an inferior half of the gluteus maximus musculature and overlying skin as a free flap. In this patient a bulk of tissue was moved using microvascular surgical techniques while maintaining minimal donor site deformity.

Buttocks↗
PubMed1983

Electric current arterial injury: a laboratory model.

A laboratory model capable of creating reproducible, nonlethal, fourth-degree type electrical extremity burns in rats was developed. Fifty-seven rats were studied immediately after burn to 90 days after burn with microdissections, light microscopy, microangiography, and flow studies. Progressive necrosis was not observed. Minimal major vessel arterial injury was demonstrated. This significant finding supports the concept of early debridement and reconstruction to include possible free tissue transfer.

Animals↗
PubMed1983

Dimethyl sulfoxide alteration of collagen.

In vitro incubation of human scar in our laboratory with 99% DMSO demonstrated, by electron microscopy, the disruption of the collagen fibers. This may prove to be a useful preparatory step for selective enzymatic assault upon exuberant or undesirable scar tissue in the clinical setting. Further study of this concept is planned.

Collagen↗
PubMed1982

Direct microvascular monitoring with implantable ultrasonic Doppler probes.

A method for constructing high-frequency pulsed Doppler ultrasonic microprobes is described. Such probes were constructed and implanted on the femoral arteries of 14 rats. All of the probes gave excellent signals during the early postoperative period and all probes were found to be functional when retrieved one month after implantation. We feel that high-frequency pulsed Doppler microprobes have important advantages for microvascular monitoring.

Animals↗
PubMedDate not supplied

A case report of penis reconstruction for partial penis necrosis following circumcision.

Circumcision is one of the most common operations performed world-wide and is usually done for religious and social reasons. Although it is a simple procedure, serious complications may result. These complications may range from hemorrhage to total amputation. Reconstruction of a partial amputation of phallus due to circumcision by full-thickness skin grafting is presented in this paper.

Amputation, Surgical↗