Biomedical subjects

F W Sydow

Publications and source records attributed to F W Sydow.

3 recordsLinked to original sources

PubMed1990

[A new technic for interpleural blockade].

A new method for pleural block is presented. As the loss-of-resistance technique is not a useful approach for identification of the pleural cavity, alternative concepts, such as low-friction syringe-piston movement and infusion techniques have been developed for identification of the pleural cavity for catheter insertion. Both methods have the disadvantage that they involve a risk of pneumothorax during the insertion of the catheter, because it is necessary to disconnect the Tuohy needle from the syringe or infusion apparatus at the moment of catheter insertion. At this time there will be a direct communication between the pleural cavity and outside. A new technique has now been developed: this involves a latex balloon that collapses under the negative pressure of the pleural cavity. With this new technique it is possible to insert the catheter without disconnection. Furthermore, the identification is more sensitive than with the other techniques, so that the risk of pneumothorax is minimized. The technique has been applied in 71 cases with no technique-related complications.

Bupivacaine↗

PubMed1989

The influence of anesthesia and postoperative analgesic management of lung function.

General anesthesia itself may influence postoperative lung function. It leads to a depression of the functional residual capacity, which, in combination with surgical trauma and postoperative pain, can provoke insufficient breathing, retention of bronchial secretions, and atelectasis. Regional anesthesia has no influence on lung function. After upper abdominal or thoracic surgery, postoperative epidural analgesia causes a significant increase of lung function as compared with systemic analgesia. The combination of regional anesthesia and general anesthesia intraoperatively appears to reduce lung function much less than general anesthesia alone.

Analgesia, Epidural↗

PubMed1984

[Thoracic peridural anesthesia for intra- and postoperative analgesia in lung resections. A comparison of stress reactions and postoperative lung function].

47 patients who were scheduled for lung resection were assigned to two groups. 23 patients had a neurolept analgesia and postoperatively parenteral analgetics. 24 patients received a combination of thoracic peridural anaesthesia and nitrous oxide-oxygen anaesthesia for surgery. The peridural analgesia was continued for 2-3 days for postoperative pain control. Heart rate and mean arterial pressure were recorded. Before, during and after surgery blood was drawn for determination of plasma glucose and cortisol. Postoperatively vital capacity and FEV1 were measured and blood gas analyses were performed for one week. The combination of peridural and intubation anaesthesia resulted in very stable haemodynamics in comparison with the neurolept analgesia. Heart rate and mean arterial pressure decreased during surgery without peak levels as response to the surgical trauma. Blood glucose and plasma cortisol showed equal responses in both investigation groups. A reduced stress response by means of the peridural anaesthesia could not be demonstrated. During the first 48 h after surgery a significantly higher vital capacity was measured in the patients with peridural anaesthesia. FEV1 was analogously increased, the quotient of FEV1/VC was similar in both study groups. No obstruction was observed. PaO2 and paCO2 showed no clinically relevant differences. During surgery the combination of general and regional anaesthesia results in a lower stress response of the heart and postoperatively it improves lung function which is an important advantage in comparison with systemic analgetics.

Adult↗