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Biomedical subjects

F Benaim

Publications and source records attributed to F Benaim.

8 recordsLinked to original sources

Development in the treatment of burns in South America during the last decades.

The scientific approach toward the problems of burn treatment in South America started in the 1930's and was emphasized in the 1940's as a result of the positive influence of the Latin American Congresses of Plastic Surgery initiated in 1941. During the 1950's, as an appropriate answer to the problem, specialized burns facilities started to spread over the Latin American countries. Consequently, there was a progressive incorporation of very important advances such as a more adequate fluid replacement, early excision and grafting, enteral feeding, new topical antibacterial agents, a more appropriate approach for the prevention and treatment of infections, a better understanding of the smoke inhalation injury and better management of physical and psychological rehabilitation. Thus, during the past 25 years, burn care has dramatically evolved toward excellence. The Latin American Committee for Prevention and Care of Burns, created in 1964 was one important land-mark in the development of burn treatment in South America. The creation of Burn Associations in many South American countries was initiated in 1990, and culminated in 1991 when the Latin American Federation of Burn Associations was founded. These developments illustrate how the specialists in the South American countries have followed the tune of international progress. They constitute at this time, an important group of committed workers, not only to the treatment of burned patients but also to the scientific and academic side of this specialty.

Burn Units↗

[Use of the Cerebral Function Monitor in cardiac surgery].

Having employed routinely the monitor of cerebral function in cardiac surgery operations for about a year, the authors now present an analysis of the variations in the traces of a group of 57 patients. They have found, when there is no major haemodynamic consequence associated with the induction of anaesthesia, and when there are no difficulties of a surgical or a technical nature accompanying the artificial extra-corporeal circulation, that the monitor curve stays perfectly stable. On the other hand, all sudden haemodynamic changes result in hypotension (haemorrhage, dysrhythmia, and a fall in flow in the extracorporeal circulation) that is reflected in the level of the monitor curve which also falls. They conclude, using examples of certain variations, that the monitor curve is a supplementary form of surveillance and that the trace recorded simultaneously with the anaesthetic sheet allows retrospective analysis of the haemodynamic events to be performed for each operation.

Adolescent↗

Sensibility assay for topical agents. A new method.

We present a new laboratory method to test the sensibility of clinically isolated strains to topical agents. It is a method of dilution of the whole cream in a solid medium. The cream is weighted, suspended in sterile water, and maintained at 45 degrees C. Then a volume of that suspension is added to the agar, maintained at 45 degrees C also. The mixture is agitated and plated. Afterwards 25 strains are inoculated by a Multinoculator (Cetin, Bs. As., Argentina). After incubation (18 hours at 37 degrees C), the results are obtained by observing the presence or absence of bacterial development. The minimal inhibitory concentration is calculated as the lowest concentration that inhibited growth. It is a simple, economical, and reproducible method.

Anti-Infective Agents, Local↗

The use of the modified Thomas splint for a patient with cultured epidermal autografts.

UNLABELLED: Because of the difficulty in handling a patient with cultured epidermal autografts in pressure areas of the limbs, we have adopted a splint that is easy to apply, allows an easy access to the wound, and is well tolerated by the patient. HYPOTHESIS: Avoiding pressure in areas with autografts is recommended. This is the reason we have used a splint that avoids the pressure and the secretion buildup. This technique helps a better "take of the grafts." METHODS: We have modified the original Thomas splint in two ways: (1) the use of a distant and upper appliance that allows to correct the foot's flexion; and (2) the use of an appliance that can be regulated, is inflatable, and can be removed, allowing the change of pressure in different areas. We have used this method with one patient with a deep degree of circumferential burn in both lower limbs. The splint has been maintained and the elevation changed every day for 15 days. Traction has been made with the use of the Kirschner stirrup. RESULTS: The dressing was changed easily and without patient pain. Good mobility was possible, with genital hygiene and grafts that were taken in 70% of the cultured epidermal autografts. CONCLUSION: This method allows maintenance of the legs in functional position during dressing changes and avoids pressure and chafing. It decreases the loss of the autograft for mechanical effects.

Bandages↗

Pulsed electromagnetic fields in experimental cutaneous wound healing in rats.

Electromagnetic fields are now being used in many diseases such as osseous, ligamental, cartilaginous, or nervous reparation, diabetes, and myocardial or cerebral ischemia. Although many publications show the usefulness of magneto-therapy, discrepancies exist about the utility of electromagnetic fields in skin wound healing. The objective of this work was to study the effect of pulsed electromagnetic fields on wound healing in rats. Twenty-two male Wistar rats were used; a circular lesion was made in the back of each animal. They were divided into three groups: group C (control) with sham treatment (n = 8), group NF, treated with topical nitrofurazone solution (n = 7), and group PEMF, treated with pulsed electromagnetic fields of 20 mT (n = 7). The treatments were 35 minutes twice a day. The absolute and relative values of the area and perimeter of the wounds showed significantly lower values in the PEMF group at days 7, 14, and 21 compared with those in group C (p < 0.01, analysis of variance), whereas the PEMF group showed significantly lower values at day 21 only compared with the NF group (p < 0.01, analysis of variance). The results suggest a significant beneficial stimulation in the wound healing process in rats treated with PEMF, which could lead to the development of a practical tool for research and clinical use.

Administration, Topical↗

Massage in hypertrophic scars.

Various attempts have been made to intervene with the formation of hypertrophic scarring (HTS) or to ameliorate it once it has developed, but none have yet proved effective. Massage therapy is routinely used by therapists for the treatment of various conditions, and there have been reports of increased scar pliability and decreased scar banding with the use of massage. This study examines the use of friction massage over a 3-month period in a group of 30 pediatric patients with HTS. The patients were randomly assigned to receive either therapeutic massage sessions of 10 minutes per day in combination with treatment with pressure garments or they were treated with pressure garments alone. A modified Vancouver Burn Scar Assessment Scale was used to measure the characteristics of the identified scars (10 cm by 10 cm) before and after the implementation of massage therapy. The study failed to demonstrate any appreciable effects of massage therapy on the vascularity, pliability, and height of the HTS studied, although there were reports of a decrease in pruritus in some patients. Further studies, with prolonged treatment intervals, are necessary to conclusively demonstrate the ineffectiveness of this therapy for HTS.

Burns↗