View clinical trials related to Surgery--Complications.
Filter by:Perioperative complications, especially intraoperative adverse events (iAEs), carry significant potential for long-term sequelae in a patient's postoperative course. Without consistent and homogenous reporting, these events represent a substantial gap in contemporary surgical literature and clinical practice. By definition, an iAE is any unplanned incident related to a surgical intervention occurring between skin incision and skin closure. Despite the availability of multiple intraoperative classification systems, the reporting of intraoperative adverse events remains exceedingly rare. Further, while most studies report postoperative adverse events, only a fraction of surgical publications report intraoperative complications as outcomes of interest. Many reasons could be related to this dearth in iAE reporting, ranging from a lack of clear iAE definitions to a fear of litigation. Broadly speaking, iAEs are negative outcomes, which, on the whole, epitomize a paradoxically well-documented bias in the literature. The investigators performed an umbrella review and meta-analysis of prior systematic reviews of complication reporting in a number of key urologic surgical domains. The investigators have since worked with academic surgeons to produce a set of iAE reporting guidelines known as the Intraoperative Complication Assessment and Reporting with Universal Standards (ICARUS) Guidelines. These reporting criteria were developed using the reporting guidelines using the framework outlined by the EQUATOR Network (Enhancing the QUAlity and Transparency Of health Research; www.equator-network.org/). As part of a prospective effort to evaluate the utility of these new guidelines, the investigators are performing a study of surgeons, anesthesiologists,s and nurses perceptions regarding iAE reporting and the global applicability of the new iAE reporting guidelines. In part one of this study, a series of survey questions will be used to better elucidate surgeon perceptions underlying the contemporary deficit in iAE reporting. In part two of this study, a set of assessments to representatives within various surgical specialties to assess the global applicability of the newly developed iAE reporting guidelines.
The aim of this of study is to identify the incidence of mechanical failures after spinal fusion within one year of surgery and to assess the related risk factors.
Anaesthetic depth and complications after major surgery: an international, randomised controlled trial - The BALANCED trial. In this large, international, randomised controlled trial that enrolled patients aged 60 years and over with significant comorbidity and at increased risk of complications after major surgery, we found no evidence that light general anaesthesia (bispectral index 50) was superior to deep general anaesthesia (bispectral index 35) in reducing 1-year mortality. The BALANCED long term follow up study will look at whether depth of anesthesia affects long term (beyond 1 year) survival. The primary hypothesis is that targetting BIS 50 will result in superior long term survival compared to targetting BIS 35. The two secondary hypotheses are that BIS titration to BIS 50 will 1. reduce local cancer recurrence or metastatic spread and consequently improve long-term survival 2. reduce postoperative delirium and associated cognitive impairment and consequently improve long-term survival Both these mechanisms would be expected to take longer to manifest as reduced survival than 1-year all-cause mortality primary outcome in the Balanced trial. Trials of cancer outcomes often use 5-year survival or similar timeframes to determine evidence of clinical benefit. A steeper cognitive trajectory due to intermediate outcomes such as delirium and cognitive impairment may take longer than 1 year to produce a clinically important difference in survival 30. The 10.6% relative risk reduction seen in the Balanced trial could translate to a statistically and clinically meaningful survival difference in this high-risk population. This population may have 5-year survival of ~80% translating to an absolute survival difference of ~2% potentially (if the ~10% RRR is maintained beyond 1 year). The alternative is that there is no long-term mortality difference which would provide continuing clinical guidance of the safety of current practice in patients who are not at high risk of delirium. This study could provide a rationale for trials in larger populations (such as the total Balanced trial population) or targeted subgroups such as cancer and delirium to provide further mechanistic insights. Long-term survival is an important patient-centred outcome. The mechanisms described above may manifest in longer-term outcomes providing a clear rationale for the current trial.
The main objective of this study is to carry out a medico-economic evaluation of a new platform for outpatient surgical care, by comparing the effectiveness and utility of the deployment of this trajectory on patients and the health system to a control group.
Retrospective review of hernia surgery patients at HHMcGuire VAMC focusing on repair type and postoperative complications.
A randomized control trial was made to examine the effect of discharge training developed using Nursing Interventions Classification on surgical recovery in patient who underwent oncological surgery.
Liver transplantation are surgeries associated with important bleeding and often require perioperative red blood cell (RBC) transfusions. Overall, between 20 and 85 % of liver transplant recipients receive at least one RBC transfusion during their surgery. Such transfusions are consistently associated with higher morbidity and mortality, although this causal association is still under debate in many surgical populations. Despite the lack of clear causative association between perioperative transfusions and worse outcomes, minimizing bleeding and transfusions is believed to improve postoperative outcomes. Many perioperative variables are associated with higher blood loss and need for perioperative transfusions: liver disease severity, preoperative anemia and coagulopathy, higher cardiac filling pressures and higher fluid administration, among others. However, few perioperative interventions have been shown to reduce bleeding and transfusion requirements in this population. Among them, the use of intraoperative phlebotomies to reduce portal and hepatic venous pressure during the dissection phase is a promising one, also described in liver resection surgery. To further investigate the effects of intraoperative phlebotomies on intraoperative bleeding, perioperative transfusions and mortality, the Principal Investigator will conduct a retrospective cohort study with a propensity score based causal analysis.
A five classes (A-E) aggregate risk score predicting 90-day mortality after video-assisted thoracoscopic lobectomy for lung cancer, including as independent factors male sex (3 points), carbon monoxide lung diffusion capacity <60% (1 point) and operative time >150 minutes (1 point), has been recently published. This study aims to assess the effectiveness and reliability of this risk model in a large, independent cohort of patients, in order to confirm its generalizability.
COVID-19 has been a challenge for hospitals; there was an obvious need to reconvert many spaces in specific areas to attend this pathology, without forgetting the attention to other pathologies and surgery. The objective of the investigators is to evaluate the impact of this pandemic in the patients who underwent surgery in Bellvitge University Hospital, analyzing 2 periods of time: the months before the COVID-19 peak and the COVID-19 peak months.
The purpose of the study is to assess feasibility of future large randomised controled study aimed on assessment of effect of goal-directed therapy on incidence of complications in neurosurgery compared to standard care.