Alfredo Benjamin Duarte Da Silva

An alternative experimental model for training in microsurgery

OBJECTIVE to describe a new model of training in microsurgery with pig spleen after splenectomy performed by undergraduate students of the Discipline of Operative Technique of the UFPR Medical School. METHODS after the completion of splenectomy we performed dissection of the vascular pedicle, distal and proximal to the ligation performed for removal of the spleen. After complete dissection of the splenic artery and vein with microscope, clamps were placed and the vessels were cut. We then made the anastomosis of the vessels with 9.0 nylon. RESULT the microsurgical training with a well-defined routine, qualified supervision and using low cost experimental materials proved to be effective in the practice of initial microvascular surgery. CONCLUSION the use of pig spleen, which would be discarded after splenectomy, is an excellent model for microsurgical training, since besides having the consistency and sensitivity of a real model, it saves the sacrifice of a new animal model in the initial learning phase of this technique.

Electromyographic evaluation of the gastrointestinal tract in dogs with short bowel syndrome

Seven dogs were subjected to resection of 80% of the total length of the small bowel. Seven pairs of electrodes were implanted in the seromuscular layer of the antrum and remaining small bowel. Electromyographic recordings were obtained during fasting and after milk ingestion. Slow waves were identified in all sites studied and their frequencies were 4.7±0.4/min in the antrum; 17.5±0.58/min in D1; 17.5±0.61/min in D2; 17.43±0.65/min in J1; 17.40±0.62/min in J2; 10.28±0.77/min in I1; and 9.81±0.53/min in I2. The phase III of the migrating motor complex was identified in only one recording. Ingestion of milk caused the appearance of the fed pattern in all recording sites, except the antrum. It is concluded that extensive resection of the small bowel causes reduction of the slow wave frequency in the gut distal to the resection and disappearance of phase III of the migrating motor complex.

Ossification of vascular pedicle in fibula free flap: a case report

Introduction: The use of fibula flaps for the reconstruction of craniomaxillofacial defects has many advantages, including the low morbidity of the donor area, good bone quality for use of osseointegrated implants, and the possibility to include a skin island, when indicated. During the dissection of the flap, a muscle “cuff” and a periosteal strip are usually included near the region of the vascular pedicle. The Brazilian Society of PlaStic Surgery SOCIEDADE BrASIlEIrA DE CIrurgIA plaStICA Relato de Caso Rev. Bras. Cir. Plast. 2014;29(2):198-200 DOI: 10.5935/2177-1235.2014RBCP0037