Eisenmenger syndrome is a pulmonary vascular disease in which pulmonary-systemic circulation is connected due to bidirectional shunt caused by congenital heart disease, leading to increased pulmonary vascular resistance and right ventricular failure. Intraoperative management is a challenging task for anesthesiologists when patients with Eisenmenger syndrome undergo non-cardiac surgery, and maintaining both systemic vascular resistance and pulmonary vascular resistance during surgery is critical. In this case, we report that a patient with Eisenmenger syndrome with a humerus fracture successfully underwent open reduction with internal fixation by performing ultrasound guided supraclavicular brachial plexus block and was discharged without complications. When upper limb surgery is performed in patients with Eisenmenger syndrome, ultrasound guided supraclavicular brachial plexus block has fewer hemodynamic changes such as decreased systemic venous resistance and increased pulmonary vascular resistance compared to general anesthesia, and could be a safe anesthetic method in terms of postoperative pain control.

Data on the clinical outcomes in deferred coronary lesions according to functional severity have been limited. This study evaluated the clinical outcomes of deferred lesions according to fractional flow reserve (FFR) grade using Korean FFR registry data. Among 1,294 patients and 1,628 lesions in Korean FFR registry, 665 patients with 781 deferred lesions were included in this study. All participants were consecutively categorized into 4 groups according to FFR; group 1: ≥ 0.96 (n = 56), group 2: 0.86–0.95 (n = 330), group 3: 0.81–0.85 (n = 170), and group 4: ≤ 0.80 (n = 99). Primary endpoint was major adverse cardiac events (MACE), a composite of all-cause death, myocardial infarction, and target vessel revascularization. The median follow-up period was 2.1 years. During follow-up, the incidence of MACE in groups 1–4 was 1.8%, 7.6%, 8.8%, and 13.1%, respectively. Compared to group 1, the cumulative rate by Kaplan-Meier analysis of MACE was not different for groups 2 and 3. However, group 4 had higher cumulative rate of MACE compared to group 1 (log-rank P = 0.013). In the multivariate Cox hazard models, only FFR (hazard ratio [HR], 0.95; P = 0.005) was independently associated with MACE among all participants. In contrast, previous history of percutaneous coronary intervention (HR, 2.37; P = 0.023) and diagnosis of acute coronary syndrome (ACS) (HR, 2.35; P = 0.015), but not FFR, were independent predictors for MACE in subjects with non-ischemic (FFR ≥ 0.81) deferred coronary lesions. Compared to subjects with ischemic deferred lesions, clinical outcomes in subjects with non-ischemic deferred lesions according to functional severity are favorable. However, longer-term follow-up may be necessary.
Acute Coronary Syndrome ; Coronary Artery Disease ; Diagnosis ; Follow-Up Studies ; Humans ; Incidence ; Kaplan-Meier Estimate ; Myocardial Infarction ; Percutaneous Coronary Intervention ; Prognosis ; Proportional Hazards Models