View clinical trials related to Intraoperative Complications.
Filter by:The goal of this interventional, real world data study is to evaluate the impact of preservatives on the post-cataract ocular surface. The main question is to learn about an effect of preservatives on the eye surface. The study aims to answer some important questions: - if the usage of preservatives has an impact on the eye surface healing process after cataract surgery - if patient comfort and quality of life improve more or more rapidly with preservatives-free eye drops. Participants will be asked to undergo standard procedure of peri-cataract surgery care and in addition to survey about the ocular surface state. Researchers will compare group that takes preservatives-free dexamethasone 0.1% with standard dexamethasone 0.01% solution to see if post-surgery eye surface healing properties differ from both groups.
Resection of brain tumours forms a large proportion of work in brain surgery. One important aspect is to minimize damage to normal brain structures during this process. This improves patient outcomes and reduces complications. To identify normal brain structures from the abnormal tumours, the brain surgeons use a 'guidance' technique called intraoperative neuro-monitoring (IONM). IONM uses various electrodes to observe spontaneous electrical activity of the brain or its reaction to a stimulus such as muscle contraction, light or sound. It is now becoming common practice for neurosurgeons to use this tool during brain and spinal surgery to provide a real-time feedback under anaesthesia to help them minimise injury to important and normal brain and spine structures. IONM interpretation needs fulfilment of multiple preconditions and major modifications to the anaesthetic to reduce its inaccuracies. This invites added risks and complications such as awareness, convulsions and heart problems under anaesthesia. A team approach between the surgeon, anaesthetist and neurophysiologist (IONM specialist) is also crucial to obtain meaningful results. Therefore, the usefulness of this technique is still not perfect. Although, benefits of IONM are obvious, information on associated complications and patient experience are not commonly found in the literature. Information on other effects such as hormonal balance and tumour recurrence are also scarce. In general, these aspects have little scientific exploration. There are anecdotal reports of recurrent seizures during IONM leading to serious heart problems, teeth and tongue damage due to grinding and postoperative calf muscle injury necessitating further surgery to save limbs. Neither of these is in the literature including unorthodox treatments such as the use of cold saline to control IONM triggered fits. This study is designed to observe complications and outcome and explore patient experiences following IONM in an observational capacity not interfering with the clinical management or treatment of these patients. The investigators intend to interview the participants after surgery, at a convenient time before leaving hospital to understand their views and experiences during and after surgery and their general progress in the following one year.