Incidence and Predictors of Delirium After Cardiac Surgery.

BACKGROUND: The overall purpose of this study was to determine the incidence and perioperative factors that predispose to cause delirium in postoperative cardiac surgery patients in our Intensive Care Unit. METHODS: We performed a prospective, observational study. Following institutional review board approval, this study included 234 patients above the age of 18 years meeting the inclusion criteria for cardiac surgery in Shahid Gangalal National Heart Center from July 2018 to December 2018. Preoperative, intraoperative and postoperative data for possible risk factors were obtained. Daily assessment of delirium was done during Intensive Care Unit stay of the patient. Collected data were analysed by means of statistical software SPSS-21. RESULTS: The incidence of delirium was 15.6% (35/224) in our study. Delirium was seen in 14 out of 58 (24.1%) patients with age >60 years which was found to be statistically significant. Preoperative risk factor for developing delirium were carotid artery disease and Hemoglobin level <10gm/dl. Intraoperative risk factor for developing delirium were blood transfusion, longer cardiopulmonary bypass time. Post-operative factors for developing delirium included longer Intensive Care Unit stay, mechanical ventilation time ,duration on inotropes , blood transfusion, use of non-invasive ventilation, sleep deprivation, use of intra-aortic balloon pump, Pao2<70. CONCLUSIONS: As shown in our study, delirium is a frequent occurrence in the cardiac surgical population. The incidence of delirium after cardiac surgery was 15.6%. Several risk factors pre-operatively like age>60 years, carotid artery disease, Hb<10gm/dl, intra-operative factors like longer cardiopulmonary bypass time, blood transfusion and post-operatively longer duration of Mechanical ventilation, Intensive Care Unit stay, blood transfusion, use of intra-aortic balloon pump and Non-invasive ventilation were found to be predictors of delirium.

Anesthesiology in Times of Physical Disasters-Earthquakes and Typhoons.

Nepal and Hong Kong both are susceptible to natural disasters due to their geographic locations. Nepal suffers from frequent earthquakes, and Hong Kong regularly experiences typhoons of varying severity. Natural disasters may present acutely or with some advance warning. In either case, it is critical that disaster response plans are well established in advance of any incident. This article discusses the anesthetic and critical care implications of such natural disasters, using Nepal and Hong Kong as case studies.

Perioperative Point-of-Care Ultrasound and Transesophageal Echocardiography in Resource- Limited Settings-A Focus on Nepal and Bangladesh.

The use of point-of-care ultrasound (POCUS) and transesophageal echocardiography (TEE) in the perioperative and critical care setting is increasing worldwide. This increase has been driven by increasing educational opportunities and technologic advances. Nepal and Bangladesh are resource-limited countries where concerted efforts have been made to increase training in POCUS or TEE in the perioperative and critical care settings. This paper's focus is to present the current state of use and international efforts to improve education and skills in perioperative POCUS and TEE in Nepal and Bangladesh. The authors also examine the challenges to improving and expanding ultrasound use in the perioperative environment in resource- limited environments in general, using the Nepalese and Bangladeshi experiences as case studies. The authors have held multiple short courses in POCUS or TEE in Nepal and Bangladesh over the past several years. The authors found a high level of interest in learning POCUS and TEE skills among participants. They encountered challenges with maintaining continuing education and quality assurance for participants after the courses. They also identified barriers to incorporating ultrasound into daily practice in local hospitals. An increasing prevalence of cardiovascular disease will increase the need for diagnostic strategies for patients worldwide, including the use of POCUS and TEE, to manage patients in the perioperative and critical care settings. The courses held in Nepal and Bangladesh may serve as models to expand educational opportunities in POCUS and perioperative TEE in resource-limited settings.