Background and Aims: Insertion of transesophageal echocardiography probe in cardiac surgical patient is a routine practice for surgical planning and decision making. However it may increase the endotracheal tube cuff pressure as it lies adjacent to the posterior wall of trachea. The aim of this study is to evaluate the changes in cuff pressure after insertion of the transesophageal echocardiography probe and after completion of initial manipulation of the transesophageal echocardiography probe during various examinations in adult cardiac surgical patients.
Methods: Thirty six patients undergoing elective cardiac surgery requiring Transesophageal Echocardiography (TEE) monitoring were enrolled in the study. After induction of general anesthesia and endotracheal intubation cuff pressure were measured at 3 points of time; just after intubation (T1), after transesophageal probe insertion (T2) and after initial completion of TEE study (T3). The mean increase in cuff pressure at various point of time were compared.
Results: The cuff pressure (mean±SD) at T1, T2 and T3 were 24.61±2.72, 30.22±5.61 and 32.25±4.45 cm of H2O respectively.The cuff pressure increased significantly from T1 to T2 (p<0.001) and from T1 to T3 (p<0.001). The cuff pressure was > 30 cm of H2O in 18 (50%) of patients at T3 which was readjusted back to 25-30 cm of H2O by with drawing air from the cuff.
Conclusion: Endotracheal tube cuff pressure should be routinely monitored either intermittently or continuously after transesophageal echocardiography probe insertion till it is in situ and pressure should be readjusted to avoid unwanted complications.
Background: Catheterization of internal jugular vein can be achieved by either anatomical landmark technique or the ultrasound guided technique. The objective of our study is to find out if ultrasound guided technique could be beneficial in placing central venous catheters by improving the success rate by reducing the number of attempts, decreasing the access time and decreasing the complications rate in comparison to the landmark technique.Methods: Fifty patients scheduled for cardiac surgery requiring central venous cannulation of the right internal jugular vein were divided into two groups: ultrasound guided group ‘U’ and the landmark group ‘L’, each consisting of 25 patients with age more than 15 years. The outcomes were compared in terms of success rate, time taken for successful cannulation and rate of complications.Results: The two groups were comparable in terms of age, weight, heart rate and blood pressure. The mean number of attempts for successful cannulation was 1.08±0.277 and 1.40±0.764 (p=0.055), the time taken in seconds for successful cannulation was 108.56±27.822 and 132.08±72.529 (p=0.137) and the overall complication rate was 0% (0 out of 25) and 32% (8 out of 25) (p=0.02) in the ultrasound guided and the landmark technique group respectively.Conclusion: Ultrasound guided central venous catheterization of internal jugular vein is comparable to the landmark technique in terms of number of attempts and the time required for successful cannulation. Ultrasound guided technique is much safer than the landmark technique to reduce the overall complications rate during central venous cannulation.
Background Tricuspid regurgitation is frequently present in patients with mitral valve disease and most of this tricuspid regurgitation present are significant.
Objective To find out the prevalence of tricuspid regurgitation in adult patients present in our hospital who are planned for isolated mitral valve surgery for mitral stenosis, mitral regurgitation or both. Patients with moderate and severe tricuspid regurgitation were considered as significant.
Method This was the retrospective cross-sectional study performed at Shahid Gangalal National Heart Center of Nepal. All cardiac surgical patients scheduled for isolated mitral valve surgery during the 3 years’ period from 2017 to 2020 were enrolled in the study and presence or absence of significant tricuspid regurgitation were recorded and analysed.
Result Out of total patients 65% (663) of the cases with mitral valve pathology had significant tricuspid regurgitation. Out of the total mitral stenosis cases 70% were associated with significant tricuspid regurgitation, 62.6% of the cases of mitral regurgitation had significant tricuspid regurgitation and 64.8% of patients with combined mitral stenosis and regurgitation were associated with significant tricuspid regurgitation.
Conclusion Significant tricuspid regurgitation is present in most of the cases with isolated mitral valve pathology. So routine tricuspid valve evaluation and repair if needed during mitral valve surgeries is recommended.
With the modification in surgical techniques and advancement in medical sciences, the survival rate of patients with complex cardiac abnormalities has increased to more than 90% in about 10 years after Fontan palliation. These patients can present with some form of non-cardiac surgeries during their lifetime. Better understanding of Fontan physiology can help in proper perioperative anesthetic management of these patients. Our cases was of a 17-year-old female patient with Fontan physiology for her Ebstein's Anomaly, planned for Laparoscopic Cholecystectomy under general anesthesia. Here we describe how we successfully managed the case perioperatively.
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