Optimal PEEP during one-lung ventilation with capnothorax: An experimental study.

Background: One-lung ventilation (OLV) with induced capnothorax carries the risk of severely impaired ventilation and circulation. Optimal PEEP may mitigate the physiological perturbations during these conditions.

Methods: Right-sided OLV with capnothorax (16 cm H O) on the left side was initiated in eight anesthetized, muscle-relaxed piglets.

Open Lung in Lateral Decubitus With Differential Selective Positive End-Expiratory Pressure in an Experimental Model of Early Acute Respiratory Distress Syndrome.

Objective: After lung recruitment, lateral decubitus and differential lung ventilation may enable the titration and application of optimum-selective positive end-expiratory pressure values for the dependent and nondependent lungs. We aimed at compare the effects of optimum-selective positive end-expiratory pressure with optimum global positive end-expiratory pressure on regional collapse and aeration distribution in an experimental model of acute respiratory distress syndrome.

Design: Prospective laboratory investigation.

Prolonged reaction time in patients with chronic lateral instability of the ankle.

Impaired proprioception has been suggested as one cause of chronic lateral instability of the ankle. We subjected 15 ankles in 13 patients with symptoms of chronic lateral instability to sudden angular displacement. The reaction times in the peroneus longus and the tibialis anterior muscles were recorded and compared with those from 15 control ankles.

Ligament reconstruction for ankle instability. A 5-year prospective RSA follow-up of 30 cases.

30 ankles in 27 patients operated on for chronic lateral instability with tensioning of the lateral ligaments and capsular tissue were examined using RSA preoperatively, at 20 and 60 months. 28 ankles were considered excellent or improved by the patients. Mechanical stability (talar adduction and translation) was increased without compromising the passive range of motions.

A case of occipitocervical fusion in myeloma.

Posterior fusion (from occiput to C4) with an iliac graft on the right side and methyl methacrylate on the left side was performed in a 49-year-old woman with an osteolytic destruction of the second vertebral body caused by multiple myeloma. Thirty months after the fusion, the patient remains free from pain, although there is progression of the osteolytic lesion, now extending to the third vertebral body.