Biomedical subjects

Gustavo Chajchir

Publications and source records attributed to Gustavo Chajchir.

2 recordsLinked to original sources

PubMedDate not supplied

Growth factors in plastic surgery.

Recent advances in molecular biology and tissue engineering [9] have provided useful tools for improving surgery in general and plastic surgery in particular [11]. Advancing knowledge of cell function and easier ways to obtain active substances or even cells with specific activity have led to more frequent use of many surgical procedures. The active substances that participate in the restoration of damaged tissues are known as growth factors (fundamentally contained in platelets), cytokines, chemokines [16], and similar factors such as interleukins and tissue necrosis factors. Platelets, monocytes, and lymphocytes (T helper cells) as well as neutrophils and astrocytes are involved in the process. As potential cells, stem cells [15,23] also can be used, if obtained from the same patient. The authors used cells with well-known functions, which when added to the surgical procedures, seemed to promote the healing process and the restoration of damaged tissues. The simplest, most effective, and least expensive techniques were selected from trials and feasibility studies for wider use in all types of surgical procedures.

Blood Transfusion, Autologous↗

PubMedDate not supplied

Repetitive reconstructive rhinoplasty.

Plastic surgeons have the appropriate knowledge and clinical experience to perform a rhinoplasty. In the past 8 years, the authors have received for consultation some patients who had already undergone more than one rhinoplasty. As this shows, the specialist must be familiarized with the surgical technique specific for each case and its respective terminology. The authors propose the use of "repetitive reconstructive rhinoplasty" in referring to all the patients who for different reasons come to the specialist for a new rhinoplasty after a minimum of three surgeries performed previously. It must be emphasized that the plastic surgeon assumes the responsibility for choosing to perform repetitive reconstructive rhinoplasty, incurring the legal risk that the aesthetic or functional results may not satisfy the patient's expectations. One of the principal reasons for introducing repetitive reconstructive rhinoplasty emphasizes the "reconstructive" rather than the "aesthetic" role, whereas the legislation in many countries interprets the word "aesthetic" to imply an obligation for results that approximate perfection.

Female↗