Literaturpreisverleihungen: ritualisierte Konsekrationspraktiken im kulturellen Feld

Die Stiftung von Literatur- und Kunstpreisen hat seit einigen Jahren Konjunktur. Wir deuten das als ein Anzeichen für die Institutionalisierung und damit einhergehende Diversifizierung ästhetischer Wertungen. Aktiv beteiligt sind kulturelle Eliten, die sich ritualisierter Inszenierungen bedient, um öffentlich das Feld der 'legitimen Kultur' definieren zu können. Unter soziologischem Gesichtspunkt bewirken Prämierungen dieser Art eine doppelte Distinktion: soziale Ehre für die Prämierten (Künstler, Schriftsteller etc.) einerseits, Publicity und Prestigegewinn der Geber (Stiftungen, Kommunen, Firmen etc.) andererseits. Der erste Teil unserer Studie gilt den begrifflichen und typologischen Grundlagen dieser Praxis, es folgt eine Skizze der historischen Voraussetzungen und im Hauptteil Beschreibung und Analyse der Verleihungspraktiken des Georg-Büchner-Preises, des italienischen Premio Strega und des Nobelpreises

Pronounced haemodynamic changes during and after robotic-assisted laparoscopic prostatectomy: a prospective observational study

Objectives Robotic-assisted laparoscopic prostatectomy (RALP) is typically conducted in steep Trendelenburg position (STP). This study investigated the influence of permanent 45 degrees STP and capnoperitoneum on haemodynamic parameters during and after RALP. Design Prospective observational study. Setting Haemodynamic changes were recorded with transpulmonary thermodilution and pulse contour analysis in men undergoing RALP under standardised anaesthesia. Participants Informed consent was obtained from 51 patients scheduled for elective RALP in a University Medical Centre in Germany. Interventions Heart rate, mean arterial pressure, central venous pressure (CVP), Cardiac Index (CI), systemic vascular resistance (SVR), Global End-Diastolic Volume Index (GEDI), global ejection fraction (GEF), Cardiac Power Index (CPI) and stroke volume variation (SVV) were recorded at six time points: 20 min after induction of anaesthesia (T1), after insufflation of capnoperitoneum in supine position (T2), after 30 min in STP (T3), when controlling Santorini's plexus in STP (T4), before awakening in supine position (T5) and after 45 min in the recovery room (T6). Adverse cardiac events were registered intraoperatively and postoperatively. Results All haemodynamic parameters were significantly changed by capnoperitoneum and STP during RALP and partly normalised at T6. CI, GEF and CPI were highest at T6 (CI: 3.9 vs 2.2 L/min/m(2); GEF: 26 vs 22%; CPI: 0.80 vs 0.39 W/m(2); p<0.001). CVP was highest at T4 (31 vs 7 mm Hg, p<0.001) and GEDI at T6 (819 vs 724 mL/m(2), p=0.005). Mean SVR initially increased (T2) but had decreased by 24% at T6 (p<0.001). SVV was highest at T5 (12 vs 9%, p<0.001). Two of the patients developed cardiac arrhythmia during RALP and one patient suffered postoperative cardiac ischaemia. Conclusions RALP led to pronounced perioperative haemodynamic changes. The combination of increased cardiac contractility and heart rate reflects a hyperdynamic situation during and after RALP. Anaesthesiologists should be aware of unnoticed pre-existing heart failure to worsen during STP in patients undergoing RALP

Changes in intraocular pressure and optic nerve sheath diameter in patients undergoing robotic-assisted laparoscopic prostatectomyin steep 45 degree Trendelenburg position

Background: To evaluate changes in intraocular pressure (IOP) and intracerebral pressure (ICP) reflected by the optic nerve sheath diameter (ONSD) in patients undergoing robotic-assisted laparoscopic prostatectomy (RALP) in permanent 45 degrees steep Trendelenburg position (STP). Methods: Fifty-one patients undergoing RALP under a standardised anaesthesia. IOP was perioperatively measured in awake patients (T0) and IOP and ONSD 20 min after induction of anaesthesia (T1), after insufflation of the abdomen in supine position (T2), after 30 min in STP (T3), when controlling Santorini's plexus in STP (T4) and before awakening while supine (T5). We investigated the influence of respiratory and circulatory parameters as well as patient-specific and time-dependent factors on IOP and ONSD. Results: Average IOP values (mmHg) were T0 = 19.9, T1 = 15.9, T2 = 20.1, T3 = 30.7, T4 = 33.9 and T5 = 21.8. IOP was 14. 0 +/- 7.47 mmHg (mean +/- SD) higher at T4 than T0 (p = 0.013). Univariate mixed effects models showed peak inspiratory pressure (PIP) and mean arterial blood pressure (MAP) to be significant predictors for IOP increase. Mean ONSD values (mm) were T1 = 5.88, T2 = 6.08, T3 = 6.07, T4 = 6.04 and T5 = 5.96. The ONSD remained permanently > 6.0 mm during RALP. Patients aged < 63 years showed a 0.21 mm wider ONSD on average (p = 0.017) and greater variations in diameter than older patients. Conclusions: The combination of STP and capnoperitoneum during RALP has a pronounced influence on IOP and, to a lesser degree, on ICP. IOP is directly correlated with increasing PIP and MAP. IOP doubled and the ONSD rose to values indicating increased intracranial pressure. Differences in the ONSD were age-related, showing higher output values as well as better autoregulation and compliance in STP for patients aged < 63 years. Despite several ocular changes during RALP, visual function was not significantly impaired postoperatively

The impact of obesity on pulmonary deterioration in patients undergoing robotic-assisted laparoscopic prostatectomy

Obesity affects respiratory and hemodynamic function in anesthetized patients. The aim of this study was to evaluate the influence of the body mass index (BMI) on pulmonary changes in a permanent 45 degrees steep Trendelenburg position (STP) during robotic-assisted laparoscopic prostatectomy (RALP). 51 patients undergoing RALP under standardized anesthesia were included. Perioperative pulmonary function and oxygenation were measured in awake patients (T-0), 20 min after the induction of anesthesia (T-1), after insufflation of the abdomen in supine position (T-2), after 30 min in STP (T-3), when controlling Santorini's plexus in STP (T-4), before awakening while supine (T-5), and after 45 min in the recovery room (T-6). Patient-specific and time-dependent factor on ventilation and predicted peak inspiratory pressure (PIP), driving pressure (P-driv) and lung compliance (LC) in a linear regression model were calculated. PIP and P-driv increased significantly after induction of capnoperitoneum (T2-4) (p 31 kg/m(2) reached critical PIP values >= 35 cmH(2)O. Postoperative oxygenation represented by the PaO2/FiO(2) ratio was significantly decreased compared to T-0 (p < 0.0001). Obesity in combination with STP and capnoperitoneum during RALP has a profound effect on pulmonary function. Increased PIP and P-driv and decreased LC are directly correlated with a high BMI. Changes in PIP, P-driv and LC during RALP may be predicted in relation to patient's BMI for consideration in the preoperative setting