Is neuraxial blockade contraindicated in the patient with aortic stenosis?:

Adverse outcomes after noncardiac surgery in patients with aortic stenosis

Whether aortic stenosis (AS) increases perioperative risk in noncardiac surgery remains controversial. Limited information is available regarding adequate anesthetic techniques for patients with AS. Using the reimbursement claims data of Taiwan's National Health Insurance, we performed propensity score matching analyses to evaluate the risk of adverse outcomes in patients with or without AS undergoing noncardiac surgery between 2008 and 2013. We also compared the perioperative risk of AS patients undergoing general anesthesia or neuraxial anesthesia. Multivariable logistic regressions were applied to calculate the adjusted odds ratios (aORs) with 95% confidence intervals (CIs) for postoperative mortality and major complications. The matching procedure generated 9741 matched pairs for analyses. AS was significantly associated with 30-day in-hospital mortality (aOR 1.31, 95% CI 1.03-1.67), acute renal failure (aOR 1.42, 95% CI 1.12-1.79), pneumonia (aOR 1.16, 95% CI 1.02-1.33), stroke (aOR 1.14, 95% CI 1.01-1.29), and intensive care unit stay (aOR 1.38, 95% CI 1.27-1.49). Compared with neuraxial anesthesia, general anesthesia was associated with increased risks of acute myocardial infarction (aOR 3.06, 95% CI 1.22-7.67), pneumonia (aOR 1.80, 95% CI 1.32-2.46), acute renal failure (aOR 1.82, 95% CI 1.11-2.98), and intensive care (aOR 4.05, 95% CI 3.23-5.09). The findings were generally consistent across subgroups. AS was an independent risk factor for adverse events after noncardiac surgery. In addition, general anesthesia was associated with greater postoperative complications in AS patients compared to neuraxial anesthesia. This real-world evidence suggests that neuraxial anesthesia should not be contraindicated in patients with AS.

Combined mitral and aortic stenosis in parturient: Anesthesia management for labor and delivery

Maternal heart disease complicates 0.2-3% of pregnancies. The optimal management of the pregnant patient with cardiac disease depends on the co-operative efforts of the obstetrician, the cardiologist and the anesthesiologist involved in peripartum care. A comprehensive understanding of physiology of pregnancy and pathophysiology of underlying cardiac disease is of primary importance in provision of obstetric analgesia or anesthesia for these high-risk groups of patients. We report a successful and uncomplicated use of epidural anesthesia for labor and delivery in patient with combined aortic and mitral stenosis.

Combined spinal-epidural anesthesia for lumbar discectomy in a patient with asymptomatic severe aortic stenosis: a case report

The use of neuraxial anesthesia has traditionally been contraindicated in patients with severe aortic stenosis. However, general anesthesia can be riskier than neuraxial anesthesia for severe aortic stenosis patients undergoing spinal surgeries in the prone position as this can cause a major reduction in cardiac output secondary to diminished preload. In addition, general anesthesia, muscle relaxation, and positive-pressure ventilation can decrease venous return and reduce vascular tone, further compromising cardiac output. Combined spinal-epidural anesthesia with closely monitored, careful titration of the local anesthetic dose can be an efficient and safe anesthetic method for managing such patients. We describe the successful management of combined spinal-epidural anesthesia in an asymptomatic severe aortic stenosis patient scheduled for lumbar discectomy.

Anesthetic Considerations in the Patient With Valvular Heart Disease Undergoing Noncardiac Surgery

Valvular heart disease can be an important finding in patients presenting for noncardiac surgery. Valvular heart disease and resulting comorbidity, such as heart failure or atrial fibrillation, significantly increase the risk for perioperative adverse events. Appropriate preoperative assessment, adequate perioperative monitoring, and early intervention, should hemodynamic disturbances occur, may help prevent adverse events and improve patient outcome. This review article aims to guide the practitioner in the various aspects of anesthetic management in the perioperative care of patients with valvular heart disease. The pharmacological approach to optimization of patient outcome with drugs, such as βblockers and lipid-lowering medications (statins), is an evolving field, and recent developments are discussed in this article.

Rachianesthésie continue pour fracture du col fémoral chez deux patients présentant un rétrécissement aortique serré

Neuraxial blockade is usually not recommended in patients with aortic stenosis. However, neuroaxial blockade techniques such as continuous spinal or epidural anaesthesia can be tailored to minimize potentially dramatic consequences of decrease in systemic vascular resistance, often encountered after standard single shot spinal anaesthesia. We report the cases of two severe aortic stenosis patients (aortic valve area<0.5 cm2) that underwent hip surgery under continuous spinal anaesthesia. Small doses of isobaric 0.25% bupivacaine titrated to limit total dose below 5 mg, injected through the intrathecal catheter allowed the control of haemodynamic parameters. No clinical complication occurred in these two patients.