| Popis: |
Background Regional anesthesia plays an important role in improving the success rate of rotational flap surgery through the control of regional blood flow. Paravertebral block at levels T1 and T2 improves the survival of rotational flap in maxillofacial reconstruction. It is associated with a better outcome and fewer flap complications. Aim This study aimed to evaluate the effect of single-shot paravertebral block on the survival of maxillofacial rotational flap. Patients and methods A total of 32 patients scheduled for elective maxillofacial rotational flap reconstruction were included in the study. All patients received general anesthesia and randomly allocated to one of two groups: patients in group I received single-shot paravertebral block at levels T1 and T2, whereas patients in group II served as controls. Skin temperature was measure on both the reconstructive and the nonsurgical sides. Flap perfusion was assessed by analysis of skin color, turgor, and capillary refill. Flap survival was recorded. Results The surface temperature of pectoralis major myocutaneous (PMMC) flap was significantly higher in group I patients than in group II patients at 0, 4, 8, 12, 16, 20, and 24 h postoperatively (P=0.002, 0.009, 0.001, 0.001, 0.001, 0.001, and 0.029, respectively). The skin turgor and capillary refill scores were significantly higher in group I than in group II. Total perfusion score was significantly higher in group I patients than in group II patients at 16 and 20 h postoperatively (P Conclusion Single-shot paravertebral block at T1 and T2 levels increases skin temperature and improves skin turgor and capillary refill, which are indicators of appropriate tissue perfusion and indicate maxillofacial PMMC flap survival. |
