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R. K. Shields C. J. Clancy L. R. Minces N. Shigemura E. J. Kwak F. P. Silveira R. C. Abdel‐Massih J. K. Bhama C. A. Bermudez J. M. Pilewski M. Crespo Y. Toyoda M. H. Nguyen 《American journal of transplantation》2013,13(8):2137-2145
We conducted a retrospective study of deep surgical site infections (SSIs) among consecutive patients who underwent lung transplantation (LTx) at a single center from 2006 through 2010. Thirty‐one patients (5%) developed SSIs at median 25 days after LTx. Empyema was most common (42%), followed by surgical wound infections (29%), mediastinitis (16%), sternal osteomyelitis (6%), and pericarditis (6%). Pathogens included Gram‐positive bacteria (41%), Gram‐negative bacteria (41%), fungi (10%) and Mycobacterium abscessus, Mycoplasma hominis and Lactobacillus sp. (one each). Twenty‐three percent of SSIs were due to pathogens colonizing recipients' native lungs at time of LTx, suggesting surgical seeding as a source. Patient‐related independent risk factors for SSIs were diabetes and prior cardiothoracic surgery; procedure‐related independent risk factors were LTx from a female donor, prolonged ischemic time and number of perioperative red blood cell transfusions. Mediastinitis and sternal infections were not observed among patients undergoing minimally invasive LTx. SSIs were associated with 35% mortality at 1 year post‐LTx. Lengths of stay and mortality in‐hospital and at 6 months and 1 year were significantly greater for patients with SSIs other than empyema. In conclusion, deep SSIs were uncommon, but important complications in LTx recipients because of their diverse microbiology and association with increased mortality. 相似文献
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Anuradha R. Bhama Abdullah M. Wafa Jane Ferraro Stacey D. Collins Andrew J. Mullard James F. Vandewarker Greta Krapohl John C. Byrn Robert K. Cleary 《Journal of gastrointestinal surgery》2016,20(6):1223-1230
Robotic colorectal surgery has been shown to have lower rates of unplanned conversion to open surgery when compared to laparoscopic surgery. Risk factors associated with conversion from robotic to open colectomy and comparisons of the risk factors between robotic and laparoscopic approaches have not been previously reported. Patients who underwent elective laparoscopic and robotic colorectal surgeries between July 1, 2012 and April 28, 2015, were identified in the Michigan Surgical Quality Collaborative registry. Candidate covariates were identified, and hierarchical logistic regression models were used to identify risk factors for conversion. There were 4796 cases that met study inclusion criteria. Conversion was required in 18.2 % of laparoscopic and 7.7 % of robotic cases (p?<?0.0001). Risk factors for conversion in the laparoscopic group included the following: moderate/severe adhesions, obesity, colorectal cancer, hypertension, rectal operations, urgent priority, and tobacco use. Risk factors for conversion in the robotic group included the following: severe adhesions, bleeding disorder, presence of cancer, cirrhosis, and use of statins. Higher surgeon volume was protective in both groups. Conversion rates are lower for robotic than for laparoscopic colorectal surgery with fewer predictors of conversion. Recognition of factors predicting conversion may allow surgeons to choose an operative approach that optimizes the benefits of the available technologies. 相似文献
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Rebecca Dann Tarik Hadi Emilie Montenont Ludovic Boytard Dornaszadat Alebrahim Jordyn Feinstein Nicole Allen Russell Simon Krista Barone Kunihiro Uryu Yu Guo Caron Rockman Bhama Ramkhelawon Jeffrey S. Berger 《Journal of the American College of Cardiology》2018,71(1):53-65
Background
Peripheral artery disease (PAD), a diffuse manifestation of atherothrombosis, is a major cardiovascular threat. Although platelets are primary mediators of atherothrombosis, their role in the pathogenesis of PAD remains unclear.Objectives
The authors sought to investigate the role of platelets in a cohort of symptomatic PAD.Methods
The authors profiled platelet activity, mRNA, and effector roles in patients with symptomatic PAD and in healthy controls. Patients with PAD and carotid artery stenosis were recruited into ongoing studies (NCT02106429 and NCT01897103) investigating platelet activity, platelet RNA, and cardiovascular disease.Results
Platelet RNA sequence profiling mapped a robust up-regulation of myeloid-related protein (MRP)-14 mRNA, a potent calcium binding protein heterodimer, in PAD. Circulating activated platelets were enriched with MRP-14 protein, which augmented the expression of the adhesion mediator, P-selectin, thereby promoting monocyte–platelet aggregates. Electron microscopy confirmed the firm interaction of platelets with monocytes in vitro and colocalization of macrophages with MRP-14 confirmed their cross talk in atherosclerotic manifestations of PAD in vivo. Platelet-derived MRP-14 was channeled to monocytes, thereby fueling their expression of key PAD lesional hallmarks and increasing their directed locomotion, which were both suppressed in the presence of antibody-mediated blockade. Circulating MRP-14 was heightened in the setting of PAD, significantly correlated with PAD severity, and was associated with incident limb events.Conclusions
The authors identified a heightened platelet activity profile and unraveled a novel immunomodulatory effector role of platelet-derived MRP-14 in reprograming monocyte activation in symptomatic PAD. (Platelet Activity in Vascular Surgery and Cardiovascular Events [PACE]; NCT02106429; and Platelet Activity in Vascular Surgery for Thrombosis and Bleeding [PIVOTAL]; NCT01897103) 相似文献7.
Bhama JK Haas MK Fisher WE 《Surgical laparoscopy, endoscopy & percutaneous techniques》2001,11(6):375-378
Percutaneous endoscopic gastrostomy is frequently used in patients with head and neck cancer to establish enteral access for feeding. Spread of head and neck cancer to the gastrostomy site is a rare but increasingly reported complication after percutaneous endoscopic placement. We report the 13th such case in the literature, occurring in a 51-year-old black man with squamous cell carcinoma of the hypopharynx. The mode of tumor spread to the gastrostomy site remains debatable. Evidence exists for hematogenous dissemination and direct implantation. We think percutaneous endoscopic techniques for enteral access in this patient population are contraindicated, and we advocate a laparoscopic approach for gastrostomy placement. 相似文献
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