Active clinical trials for "Postoperative Complications"

Intra-operative hemodynamic management in high-risk surgery is a priority for the anesthesiologist. The current strategy is based on the continuous measurement of cardiac output and its maximization by vascular filling has many limitations: invasiveness, measurement difficulties, impaired performance, imperative surgical restriction of filling, lack of evaluation of flow rate and metabolic needs. Biomarkers may be able to detect early an inadequacy between cardiac output and tissue oxygen requirements, venous saturation with oxygen (ScvO2) and arteriovenous difference in partial pressure of carbon dioxide (ΔPCO2) as well as the appearance of cellular hypoxia (lactate and arteriovenous difference in partial pressure of carbon dioxide/arteriovenous difference in oxygen) (ΔPCO2) / DAVO2). Moreover, the medical literature remains poor on the evaluation of these markers in per-operative context all the more for ΔPCO2 and ΔPCO2 / DAVO2. It seems interesting to evaluate the potential of these tools, in patients with major surgery and at high risk (major hepatectomy, oesophagectomy and duodeno-pancreatectomy), to predict the risk of postoperative complications, especially since surgery involves a restrictive vascular filling strategy that may be potentially deleterious to the patient.

Regarding the postoperative care strategies following elective craniotomy procedures there is little evidence. Many neurosurgical departments prefer these patients to remain intubated and sedated for many hours postoperatively to minimize hemodynamic and respiratory distress in fear of early postoperative complications such as rebleeding or seizures. In this prospective observational study the investigators aim to show that early tracheal extubation following elective brain surgery is feasible and safe.

The purpose of this study is to assess patient satisfaction with the Titan one touch release penis prosthesis and to register complications with this prosthesis. This will regard the first prostheses inserted at Herlev Hospital/Frederikssund Hospital. Patient satisfaction will be assessed by mailing out the "Erectile Dysfunction Inventory of Treatment Satisfaction (EDITS) Questionnaire" and recording the patient answers. The most important question will be "Overall how satisfied are you with penile prosthesis?". Complications (including infection, bleeding, and mechanical failure) will be assessed by a patient chart review and confirmed by a brief phone interview.

The investigators will examine the relationship between post-operative oxygen consumption (using non-invasive measurement technology ) and complications in patients having contemporary major abdominal surgery. The investigators hypothesis is that major surgery may trigger a physiological stress response that results in an increase in post-operative metabolic demand and oxygen consumption (V̇O2) which must be met by an increased oxygen delivery (DO2). To determine the feasibility of non-invasive measurement of oxygen consumption (V̇O2) using indirect calorimetry in a cohort of patients To determine the feasibility of non-invasive measurement of oxygen delivery (DO2) in the same cohort using non-invasive measures of cardiac output, oxygen saturation and haemoglobin (pulse wave transit time and co-oximetry techniques)

The purpose of this study is to evaluate Hemoglobin A1c values previous to a surgery in patients with diabetes type II and the complication incidence in immediate post surgery.

Purpose: To assess the functional and anatomical outcome of primary vitrectomy without scleral buckling for rhegmatogenous retinal detachment (RRD) in highly myopic eyes with axial length over 30 mm. Methods Design: Retrospective single center series. Setting: University Hospital. Patients: High myopic patients treated with primary vitrectomy without scleral buckling for a rhegmatogenous retinal detachment. Outcome measures: Anatomical success rate with complete reattachment of the retina without silicone oil tamponade and postoperative best-corrected visual acuity (BCVA).

The purpose of this study is to evaluate the possible association between portal vein flow pulsatility and acute kidney injury after cardiac surgery. Participants will undergo assessment of portal vein flow and intra-renal blood flow using bedside Doppler ultrasound before surgery and daily for three days after cardiac surgery.

This prospective study intends to investigate the incidence of postoperative pulmonary complications (PPC) or in-hospital mortality in patients with COPD or at risk for COPD undergoing high-risk noncardiac major surgery and to identify relevant risk factors. This study aims to quantify and compare the diagnostic performance of preoperative functional tests, exercise capacity, clinical assessment tests and predictive scoring systems to predict PPC or in-hospital mortality in these patients.

The aim of the clinical study is: to examine the association between postoperative endothelial function, indirectly measured by reactive hyperemia index, and major adverse cardiovascular events including myocardial injury and cardiac death within 30, 90 and 365 days of acute abdominal surgery. to examine the association between postoperative endothelial function, indirectly measured by reactive hyperemia index, and non-cardiovascular complications including non-cardiac death within 30, 90 and 365 days of acute abdominal surgery. to examine the importance of the postoperative blood glucose level and the pulmonary function for postoperative complications and death within 30, 90 and 365 days of acute abdominal surgery. to examine the association between postoperative endothelial function, pulmonary function and blood glucose level the qualitative part of the study will examine the postoperative subjective symptoms including acute and chronic pain, quality of recovery and functional status, depressive thoughts and post-traumatic stress disorder.

Postoperative observation of patients is based on the Early Warning Score (EWS). By using continuous wireless monitoring of vital parameters it may be possible to predict the risk of complications after abdominal cancer surgery. The object of this pilot study is to test the equipment and methods for the next phases. Patients will be monitored for 4 days postoperatively and data is analyzed retrospectively. Vital parameters are monitored with ECG, blood pressure monitor and pulseoximetry. In the analysis the investigators will compare the results from the continuous monitoring to the measurements made by the nurses and registered in the EWS. The primary outcomes for the pilot study are the frequency of measurements resulting in a single parameter score of 3 according to the EWS algorithm.