Fresh xylan degrading nutrients from polysaccharide making use of loci associated with Prevotella copri DSM18205.
 OBJECTIVE Recent studies have found that transcarotid artery revascularization (TCAR) is associated with lower risk of stroke or death compared with transfemoral carotid artery stenting but higher risk of bleeding complications, presumably associated with the need for an incision. Heparin anticoagulation is universally used during TCAR, so protamine use may reduce bleeding complications. However, the safety and effectiveness of protamine use in TCAR are unknown. We therefore evaluated the impact of protamine use on perioperative outcomes after TCAR in the Vascular Quality Initiative TCAR Surveillance Project. METHODS We performed a retrospective review of patients undergoing TCAR in the Vascular Quality Initiative TCAR Surveillance Project from September 2016 to April 2019.  https://www.selleckchem.com/btk.html  We assessed in-hospital outcomes using propensity score-matched cohorts of patients who did and did not receive protamine. The primary efficacy end point was access site bleeding complications, and the primary safety end point was in-hospithere was a trend toward lower risk of stroke for patients who received protamine (1.1% vs 2.0%; RR, 0.53; 95% CI, 0.24-1.13; P = .09). There were also no statistically significant differences in the rates of transient ischemic attack (0.4% vs 1.1%; RR, 0.40; 95% CI, 0.13-1.28; P = .11), myocardial infarction (0.4% vs 0.8%; RR, 0.50; 95% CI, 0.15-1.66; P = .25), heart failure exacerbation (0.4% vs 0.3%; RR, 1.33; 95% CI, 0.30-5.96; P = .71), or postoperative hypotensive hemodynamic instability (16% vs 15%; RR, 1.06; 95% CI, 0.83-1.35; P = .50) with protamine use. CONCLUSIONS Protamine can be safely used in TCAR to reduce the risk of perioperative bleeding complications without increasing the risk of thrombotic events. OBJECTIVE An analysis was conducted of early and midterm outcomes of a large series of patients treated with in situ laser fenestration (ISLF) during thoracic endovascular aortic repair (TEVAR) of acute and subacute complex aortic arch diseases, such as Stanford type A aortic dissection (TAAD), type B aortic dissection (TBAD) requiring proximal sealing at zone 2 or more proximal, thoracic aortic aneurysm or pseudoaneurysm, and penetrating aortic ulcer. We present the perioperative and follow-up outcomes and discuss the rate of complications. METHODS This is a retrospective review of prospectively collected data from January 2017 to March 2019 of patients treated with TEVAR and ISLF of aortic arch branches at a large tertiary academic institution in an urban city in China. Preoperative, intraoperative, and follow-up clinical and radiographic data are analyzed and discussed. RESULTS A total of 148 patients presented with symptomatic and acute or subacute TAAD, TBAD, thoracic aortic aneurysm, or penetrating aortntinued investigation of TEVAR and adjunctive ISLF is needed to elucidate the long-term outcomes of this minimally invasive treatment for complex aortic arch disease in an urgent setting. OBJECTIVE Coverage of the left subclavian artery (LSA) origin during thoracic endovascular aortic repair (TEVAR) is associated with increased neurologic complications. Our group is involved in the development of an off-the-shelf (OTS) thoracic endograft incorporating a left common carotid artery (LCCA) scallop and a retrograde inner branch for LSA perfusion. This study aimed to evaluate the arch morphology of patients treated by TEVAR and requiring LSA coverage to determine the applicability of this OTS device. METHODS The preoperative anatomy of consecutive patients from three separate cohorts treated with TEVAR with LSA coverage was studied. High-quality preoperative computed tomography angiography images were analyzed on an imaging workstation. Location of the origin of the supra-aortic trunks and their anatomic relationship were depicted in all patients; the LCCA origin was set as reference point. We determined the proportion of arch morphology in our cohort of patients eligible for this OTS device configuration. RESULTS There were 196 patients included in this study, 132 in the dissection cohort and 64 in the aneurysm cohort. The median length from the lower margin of the LCCA to the proximal aspect of the pathologic process was 25.0 mm (18.2-35.2 mm), with 68.4% (n = 134) of our cohort presenting with a proximal sealing zone length >20 mm. The median LCCA-LSA distance was 20.8 mm (16.6-25.4 mm). The median clock position of the LSA from the LCCA was -10 minutes (-30 to 0 minutes). In total, 127 patients (64.8%) could have been treated with the current OTS branched TEVAR configuration; 59 were excluded for proximal neck length distal to the LCCA  less then 20 mm and 10 because of the clock position of the LCCA, and 9 first required a vertebral artery transposition. CONCLUSIONS The low variability of LSA and LCCA locations in patients with distal aortic arch disease offers wide applicability of a new standardized thoracic branched endograft.  https://www.selleckchem.com/btk.html  The Society for Vascular Surgery Lower Extremity Threatened Limb Classification System has been developed to stratify amputation risk on the basis of extent of the wound, level of ischemia, and severity of foot infection (WIfI). However, there are no currently validated metrics to assess, grade, and consider functional status, especially ambulatory status, as a major consideration during limb salvage efforts. Therefore, we propose an adjunct to the current WIfI system to include the patient's ambulatory functional status after initial assessment of limb threat. We propose a functional ambulatory score divided into grade 0, ambulation outside the home with or without an assistive device; grade 1, ambulation within the home with or without an assistive device; grade 2, minimal ambulation, limbs used for transfers; and grade 3, a person who is bed-bound. Adding ambulatory function as a supplementary assessment tool can guide clinical decision making to achieve optimal future functional ambulatory outcome, a patient-centered goal as critical as limb preservation. This adjunct may aid limb preservation teams in rapid, effective communication and clinical decision making after initial WIfI assessment. It may also improve efforts toward patient-centered care and functional ambulatory outcome as a primary objective. We suggest a score of functional ambulatory status should be included in future trials of patients with chronic limb-threatening ischemia.