Publications by authors named "Marcelo Sacramento Cunha"

Reconstruction of nasal defects is challenging because it requires covering skin, supporting framework, and lining. Traditionally, the forehead flaps are transferred in 2 stages; however, it can be accomplished in a single stage or in 3 stages. Few published studies are available about the paramedian forehead flap using the intermediate stage (3-stage) and the aesthetic subunits principle.

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Objective: To prospectively evaluate the pulmonary function in patients undergoing reduction mammaplasty.

Methods: Twelve female patients with Gigantomastia and without medical antecedents were submitted to reduction mammaplasty at our University Hospital. The patients underwent lung function testing and arterial blood gas measurements in the preoperative and postoperative period (three to six months).

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Viability and functional results of a segment replantation depend on the prevention of deleterious effects of ischemia. Prolonged ischemia leads to alterations in the microcirculation: thrombosis, edema, production of oxygen free radicals, and platelet aggregation. The effect of IIb-IIIa glycoprotein inhibitors was tested in a partial limb amputation model submitted to warm ischemia.

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Objective: The effectiveness of streptokinase and hyperbaric oxygen therapy on venous occlusion after limb reimplantation was tested in rats.

Methods: Amputation with preservation of vessels and nerves of the right hind limb was carried out in 140 rats. Groups MG0, MG1, MG2, MG3 and MG4 were submitted to 0, 1, 2, 3 and 4 hours of venous occlusion.

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Unlabelled: Prolonged tissue ischemia leads to changes in microcirculation and production of oxygen free radicals. The event eventually responsible for tissue death is the no-reflow phenomenon and its management is a challenge for the surgeon dealing with replantation or transplantation. We introduce a model of warm ischemia and reperfusion of the lower limb of rats with which we studied the effect of allopurinol and streptokinase.

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Changes in cutaneous sensibility are common after diverse plastic surgical procedures. Although prior studies examined aesthetic results, combined procedures, and new abdominoplasty techniques, few examined the effect of undermining on cutaneous sensibility. This study aimed to analyze and quantify cutaneous sensibility after classic abdominoplasty.

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Free flaps based on perforator vessels, and in particular the deep inferior epigastric perforator (DIEP) flap, are currently being applied in abdominal reconstruction. However, one of the main disadvantages is the operative complexity. Through anatomical study and clinical experience with the DIEP flap in breast reconstruction, the intramuscular path of the perforator vessels was comparatively studied, to establish the main anatomical parameters that favor procedure planning.

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The principle of free flaps based on perforator vessels and the development of deep inferior epigastric perforator flap (DIEP) is currently used in reconstructive microsurgery. Clinical experience and research have shown that perforator flaps provide numerous advantages over the conventional myocutaneous flaps and combine muscle preservation and sequel minimization at the donor site. Clinical use of autogenous tissue or perforator flaps in aesthetic breast surgery or augmentation mammaplasty is not a common practice.

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Changes in breast sensibility after reduction mammaplasty remain a controversial subject and most previous studies report only qualitative results. There is more accurate measuring of the sensibility of the skin with the Pressure-Specified Sensory Device (PSSD), which measures the pressure perception of the skin in grams per square millimeter. The evaluation of breast sensibility before and after reduction mammaplasty using the upper medial pedicle technique was undertaken in 25 patients.

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Introduction: Tissue expanders have been of great value in plastic surgery. Tissue expansion was developed for a specific indication; however, within a very short time, the concept of tissue expansion found wide applicability. From 1990 to 1999, 315 expanders in 164 patients were utilized.

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