[Total intravenous anesthesia (TIVA) with propofol/ketamine as an alternative for patients at risk in abdominal surgery].
Propofol/ketamine combination, used in total intravenous anesthesia (TIVA), is assayed in patients with abdominal diseases presenting surgical and anesthesiological risk of a varying degree. The aim of the study is to outline an optimal regimen of propofol infusion as a hypnotic agent and ketamine as analgetic during TIVA with a special reference to the hemodynamic effects and characteristic features of the recovery period. Anesthesia is applied to 15 patients presenting physical condition III--IV degree according to ASA and indications for various intraabdominal surgical interventions, including operations on an emergency basis. To improve anesthesia control, microprocessor infusion pumps Ohmeda and Becton-Dickinson, allowing for prompt dosage correction, consistent with individual needs, are employed. The strategy of dosing each of the drugs used is described. The basic hemodynamic parameters are followed with parallel assessment of the quality of anesthesia with a view to prevent operative stress, working conditions of the operative team, and characteristic features of the recovery period. From clinical viewpoint the technique proves to be satisfactory, and may be used as an alternative to conventional anesthesia in poor-risk patients indicated for abdominal surgery.