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Biomedical subjects

P J Weber

Publications and source records attributed to P J Weber.

At least 19 recordsLinked to original sources
PubMed1992

The use of a contained breathing apparatus to isolate the operator and assistant for aerosolizing procedures including dermabrasion and laser surgery.

Dermabrasion and carbon dioxide laser surgery aerosolize patient blood and tissue particles. The operating physician and assistants may therefore have intimate inhalational and mucous membrane contact with patients' body fluids. Herein is described the use of an isolated ventilation system to protect physicians and assistants from blood and tissue products aerosolized during the course of dermabrasion and carbon dioxide laser surgery.

Aerosols↗
PubMed1992

Vector-running subcuticular sutures in high-tension and high-mobility areas.

Routine cuticular sutures pierce the epidermis, and if left in place long enough, will noticeably scarify, a process called "tracking." Alternatively, the running subcuticular suture has the advantage of minimizing suture tracking, especially following a prolonged usage, because it does not pierce the epidermis along most of its course. A "hybrid" modification of these two sutures, described herein, allows for prolonged tight closure under high tension in high-movement areas, avoidance of tracking, and rapidity of placement. This innovation is called the vector-running subcuticular suture.

Dermatologic Surgical Procedures↗
PubMed1992

A new method for preabrasion graft site suturing. The superficial linear restraining stitch.

Since the introduction of wire brush dermabrasion in the 1940s, many ancillary procedures have been developed including preabrasion scar elevation and punch grafting of deep scars. Unfortunately, unsutured punch grafts tend to cobblestone or rise-up in an unsightly manner. Traditional suturing methods appear to decrease this tendency but are time consuming and tedious. Herein is described a new method for suturing preabrasion punch grafts that is extremely rapid, efficacious, and easy for the patient to remove if desired.

Cicatrix↗
PubMed1992

Modified electrosurgical adapters.

BACKGROUND: Allegedly because of concerns over worker safety in removing spent needles from the Bernsco adapter a new, modified Luer-lok adapter has been introduced by the manufacturer. However, the new adapter frequently holds needles too loosely. OBJECTIVE: To introduce a modification of the original adapter design. METHODS: The end to be inserted into the needle hub was hollowed and trisected to allow flexibility of the phalanges. A small hole is drilled in the distal shaft to allow the placement of a spiral wire, allowing a snug fit even in older, well used electrosurgical handles. CONCLUSION: The modified electrosurgical adapter may facilitate needle removal and increase surety of fit with most electrosurgical handles.

Dermatology↗
PubMed1992

Nuances in ophthalmic plastic surgery. A dermatologic surgeon's perspective.

BACKGROUND: Presented several nuances in the performance of cosmetic upper, lower, and lateral eyelid surgery. OBJECTIVE: To provide slight modifications in the performance of cosmetic upper and lower eyelid surgery that may be timesaving and outcome-enhancing. Lateral eyelid tightening is discussed. The expected outcomes and best candidates for surgery are also described. METHODS: Methods vary with the individual procedure. However, expertise in the traditional methods of cosmetic eyelid surgery is integral to success with the modified techniques. RESULTS: Results vary with the individual procedure, the surgeon's expectations, and the surgeon's interpretation of the patient's expectations, as well as other factors. CONCLUSION: Modifications of traditional cosmetic eyelid surgical procedures may benefit the patient following careful planning and technique execution.

Eyelid Diseases↗
PubMed1992

Mohs surgery update. Intraoperative presuturing.

During the course of Mohs surgery, the surgeon may be able to predict that the final closure may require tissue expansion or some other extraordinary measure to close a defect on a particular location. Presuturing, the use of stitches to preoperatively stretch donor tissue peripheral to the wound, has been previously advocated to aid in the primary closure of nonMohs tumor removal defects and scalp reduction defects. We describe the anticipatory need for and the use of button bolstered nonabsorbable sutures to stretch or expand the perioperative tissues for final closure. Previously unreported in the literature, we also employ this technique prior to flap closure. This quick and easy manouever following the intermediate and final stages of Mohs surgery has seen great use in the care of some relatively large tumors.

Aged↗
PubMed1992

Simultaneous lateral, anterior, and posterior (SLAP) lower-lid blepharoplasty.

We report a hybrid of procedures for correcting the aging lower eyelid--transconjunctival blepharoplasty, skin blepharoplasty, and skin-muscle blepharoplasty--that maximizes the strengths of these procedures while minimizing their shortcomings. Our procedure, a simultaneous lateral, anterior, and posterior blepharoplasty, simultaneously attacks the lateral canthal angle, the anterior lamella, and the posterior lamella of the eyelid.

Adult↗
PubMed1991

A local area network for controlling the ordering and purchasing of radioactive material.

Efficient control over the purchase and receipt of radioactive material is a necessary part of any radiation safety program. We describe a novel computerized method for monitoring the flow of radioactive material within a large broad-licensed medical research complex. The Local Area Network (LAN) described interfaces the radiation safety office with radionuclide receiving, the authorized user, grants and contracts, special accounts, and purchasing. Task-specific software enables the authorized user to place an order and allows the monitoring of possession/ordering limits, personnel, date of order, and time of receipt via the screen. The resultant data base is easily annexed for specific information. The system is user-friendly and adaptable to any set of circumstances.

Academic Medical Centers↗
PubMed1991

Hair transplantation (a new method for recipient site suturing): the upper dermal running stitch.

Recipient hair transplant plugs may heal into place with palpable, and unfortunately, visible borders. This appearance, called "cobblestoning," is reminiscent of the bumps in a cobblestone street. The author presents a new, rapid method of suturing transplanted plugs that greatly reduces cobblestoning, virtually eliminates traumatic plug loss, and facilitates row-by-row hair transplantation. Additionally, postoperative bandaging is not necessary, shower cleansing may commence within hours, and postoperative activity may be unlimited.

Hair↗
PubMed1991

Refinements of the tarsal strip procedure.

We present several refinements in technique that simplify the tarsal strip procedure and enhance its results. Among these refinements are: electrosurgical deepithelialization of conjunctiva and lid margin, use of a V-shaped needle, direct needle passage about the lateral orbital tubercle, and the parallel placement of a buried absorbable suture to unite the upper and lower lid margins and to maintain a long-lasting sharp canthal angle. We have used these maneuvers in 45 patients with few complications; patient acceptance has been high. Also, we have found that using these maneuvers is helpful in teaching the procedure to residents.

Ectropion↗
PubMed1990

Suture tensor.

The suture tensor is a simple stainless steel device that pulls the ends of a running subcuticular suture in opposite directions, maintaining the desired closure. The benefits of the use of this device may include minimization of train-track and excisional scarification (via the enhanced maintenance of "tenting"), time savings, and flexibility and durability for the sporting or physically active patient.

Dermatologic Surgical Procedures↗
PubMed1989

Sedation for dermatologic surgery.

This review focuses on some of the most common classes of parenteral and inhalational sedating agents used during cutaneous surgery. Emphasis also is placed on potential adverse effects and their treatments.

Dermatology↗
PubMed1989

Infectious papillomavirus in the vapor of warts treated with carbon dioxide laser or electrocoagulation: detection and protection.

Papillomavirus DNA has been reported recently in the vapor (smoke plume) derived from warts treated with carbon dioxide laser; this raises concerns for operator safety. We therefore have studied a group of human and bovine warts to define further the potential risk of wart therapy and to test whether a surgical mask could reduce exposure. Half of each wart was treated with carbon dioxide laser and the other half with electrocoagulation. The vapor produced by each form of therapy was collected with a dry filter vacuum apparatus and analyzed for the presence of papillomavirus. Vapor from human plantar warts was analyzed for the presence of human papillomavirus DNA, because there is no infectivity assay for human papillomavirus. Of plantar warts treated, five of eight laser-derived vapors and four of seven electrocoagulation-derived vapors were positive for human papillomavirus DNA. Greater amounts of papillomavirus DNA were usually recovered in the laser vapor than in the electrocoagulation vapor from the same wart. Bioassay readily detected infectious bovine papillomavirus in the vapor from bovine warts treated with either modality; more virus was present in laser-derived material. A surgical mask was found capable of removing virtually all laser- or electrocoagulation-derived virus, strongly suggesting that such masks can protect operators from potential inhalation exposure to papillomavirus.

Air Microbiology↗
PubMed1989

Bulbous-lysing underminers.

The blunt dissection offered by liposuction cannulas has greatly aided surgical undermining such as in face-lift surgery. Herein, we propose a new line of instruments that combines bulbous or blunt dissection with intervening lysing segments. The subgaleal version enables the surgeon to quickly undermine the scalp from ear to ear for scalp reductions in the subgaleal plane. In addition, the subgaleal device aids in the maintenance of the proper dissection plane and is useful in browlifts as well. A closely related "general" undermining device greatly facilitates face-life surgery and has found other uses in the undermining or separation of fibrous tissue planes.

Connective Tissue↗
PubMed1989

Pseudoepitheliomatous hyperplasia following Mohs micrographic surgery.

Pseudoepitheliomatous hyperplasia may arise secondarily in a number of cutaneous disorders. Herein we discuss this entity and describe its occurrence in a post Mohs micrographic surgery wound. We will also relate the subsequent histopathologic confusion engendered by its presence.

Aged↗