Use of apneic oxygenation for the performance of pan-endoscopy.

Objective: To evaluate the efficacy of apneic oxygenation for the performance of pan-endoscopy.

Study Design: Clinical retrospective study.

Setting: A university teaching hospital in Wuppertal, Germany.

Mismatched transfusion of 8 AB0-incompatible units of packed red blood cells in a patient with acute intermittent porphyria.

We report on a patient with acute intermittent porphyria, who received 8 AB0 incompatible units of packed red blood cells in an emergency situation. She never showed any signs of severe intravascular haemolysis. The patient died after four weeks because of a multi-organ failure caused from the malpractice of the porphyria.

[Aventilatory mass flow during apnea : investigations on quantification].

Background: Aventilatory mass flow (AVMF) is routinely used for apneic oxygenation in various clinical procedures but no data exist to quantitatively describe the gas flow. This study was designed to determine the amount of AVMF during the clinical situation of apnea to force spontaneous respiration at the end of anaesthesia with controlled ventilation.

Materials And Methods: A total of 200 patients undergoing anesthesia for routine surgery were examined.

[Anesthesia for cesarean section in a patient with Lobstein's syndrome].

We report on a 21-year-old woman with a severe form of Lobstein's syndrome, who underwent a Cesarean section. The following issues are discussed: the risk of sustaining fractures during positioning, fractures by automatic blood pressure measurement, an almost always existing latex allergy, a susceptibility for malignant hyperthermia, potential cardiac defect, difficult endotracheal intubation, lowering of the conus medullaris to an area usually used for spinal puncture, severe spinal deformities resulting in difficult puncture, hemorrhagic diathesis, and unpredictability of the expansion of local anesthetics in the vertebral canal. In this case the procedure could be carried out in spinal anesthesia without encountering major problems.

[Insertion of a fiber optic catheter into the hepatic veins of patients with multiple organ dsfunction syndrome (MODS)].

As it is the driving force in the development of a multiorgan dysfunction syndrome (MODS), the gastro-intestinal region is at the centre of current discussion. Recently, hepatovenous oximetry has been used increasingly to monitor the relationship between oxygen supply and consumption in the splanchnic system. In the present paper we report an exclusively oximetrically controlled catheterisation procedure that can be carried out at the bedside without the use of imaging procedures.

[The use of pulse oximetry in prilocaine induced methemoglobinemia].

During the last 15 years pulse oximetry has become a widely accepted method of monitoring during general and local anaesthesia. Pulse oximeters measuring with two wave-lengths are considerably affected by dyshaemoglobin. At concentrations up to 30%, CO-Hb cannot be distinguished from O2-Hb.

[Increase of prilocaine-induced methemoglobinemia following anesthesia induction].

Although the local anaesthetic prilocaine is less cardio- and neurotoxic than lidocaine, it bears the disadvantage of the formation of methaemoglobin by the metabolite o-toluidine. Prilocaine is often successfully used, especially for the blockade of the brachial plexus, but one problem of this technique is the failure rate of 3-10%, with the consequence that general anaesthesia after administration of prilocaine is frequently necessary. Methaemoglobin formation after prilocaine administration has been thoroughly investigated.

[In vivo detection of the Christiansen-Douglas-Haldane effect in clinical conditions].

The Christiansen-Douglas-Haldane effect, also termed Haldane effect, describes the dependence of CO2 absorption by blood on the degree of hemoglobin oxygenation. Under the physiological condition of an "open" system between blood and alveolus, the arterial partial pressure of CO2 (paCO2; mmHg) must range below the mixed-venous (pvCO2; mmHg) value. During the nonphysiological situation of a "closed" system, e.

[Effect of different pre-oxygenation procedures on arterial oxygen status].

There are different opinions regarding efficiency, duration, and techniques of preoxygenation. It was the aim of our study to systematically investigate the effectiveness of different preoxygenation methods by means of arterial blood gas parameters (paO2, SaO2, and CaO2). METHODS.