Results and prognostic factors in skull base surgery.

The charts of 81 patients who underwent skull base surgery between 1982 and 1993 were reviewed retrospectively. Data relative to demographic aspects, clinical stage, previous treatment, surgical approach, type of reconstruction, histology, extent of disease, complications, and follow-up were analyzed. The craniofacial approach for the anterior fossa was used in 53% of patients, the lateral skull base approach in 12%, and a combination of both in 17. Malignant tumors were diagnosed in 58 patients (72%), and histologically benign tumors in the remaining 23 (28%). Forty-one patients (51%) had skin cancer. There was dural invasion in 31 patients (38%), and 32 (40%) underwent microsurgical flap reconstruction. From the malignant group, 31 (53%) were alive with no evidence of disease (NED), and 6 (10%) were alive with disease. From the benign group, 19 (83%) were alive NED. The most common complications were cerebrospinal-fluid fistula (10%) and flap necrosis (9%). Statistical analyses of survival showed significantly different rates associated with histologic types (P = 0.0002), type of reconstruction (P = 0.0039), and previous treatment (P = 0.0018).

[Microsurgical transplants for facial depressions]. / Transplantes microcirúrgicos para depressões faciais.

From 1877 to 1991, 23 patients, 15 female and eight male, age ranging from eight to 42 years were treated for hemifacial depressions with microvascular transplants. Eight had hemifacial atrophy, four had hemifacial microsomia and one sequelae of hemangioma treatment. Twelve of these patients received paraescapular flaps, five omentum flaps, five great dorsal flaps and one fascial tensor flap. Good result was achieved in 21/23 patients with good symmetry. Two flaps were lost by vascular thrombosis. On of these patients later received a second microvascular flap with good result. Two patients presented late "reabsorption" of the flap after good result in the first year of follow-up. One of them received a second microvascular flap and again the flap lost volume in a long term follow-up. Discussion focuses on this important finding in terms of physiopathology. The results of different kinds of reconstruction are compared and the fact that dermofat flaps achieved best results is emphasized.

Microvascular flaps in head and neck reconstruction.

Twenty-six patients with head and neck tumors were submitted to 27 microvascular reconstructive procedures. In 15, the mandible was reconstructed using the rib (4), iliac crest (7), and scapula (4). Nine patients underwent craniofacial reconstructions with the latissimus dorsi (5), rectus abdominis (2), greater omentum (2), and scapular (1) flaps. Two patients received a jejunum (1) and a stomach plus greater omentum (1) flaps for pharyngoesophageal reconstruction. Three illustrative cases, one from each group, are presented in detail. Good results were obtained in 22 patients (85%), with both functional and morphological rehabilitation. There were five flap losses (two in the same patient) due to thrombosis of the microvascular anastomoses. There was no operative mortality, and the average operative time was 11 hours. The good results observed in these very advanced cases show that there is a place for these complex procedures in the treatment of selected cases of head and neck tumors.

Tratamento microcirurgico das lesoes traumaticas do nervo facial. / Microsurgical treatment of traumatic injuries of the facial nerve

Os traumatismos da face tem aumentado em frequencia e gravidade em razao dos acidentes de transito e das agressoes. As lesoes traumaticas do nervo facial constituem fator de gravidade no trauma da face, principalmente naqueles causados por ferimentos corto-contusos. Os autores apresentam experiencia no tratamento de 27 pacientes com lesao do nervo facial associada a trauma da face, detalhando-se a diferente incidencia quanto ao tronco e ramos do nervo facial. Os pacientes foram submetidos a reconstrucao microcirurgica do nervo facial por neurorrafia em somente um caso e enxertia autogena de nervo em 26. Em 23 pacientes que puderam ser avaliados um ano apos a intervencao, obtiveram resultados bons em 16 deles e regulares em 7, justificando-se, portanto, a indicacao cirurgica