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1099 citation(s) found for "Au, Lewis".

Potentially curative treatment in patients with hepatocellular cancer—results from the liver cancer research network
Kanwal, Fasiha , Befeler, Alex S. , Chari, Ravi S., Marrero, Jorge A. , Kahn, Jeffrey , Afdhal, Nezam H. , Morgan, Timothy R. , Roberts, Lewis R. , Mohanty, Smruti R. , Schwartz, Jonathan M., VanThiel, David, Li, J., Zeringue, Angelique , DIBISCEGLIE, A, Roberts, Lewis R

Alimentary Pharmacology & Therapeutics | June 7, 2012 | Volume: 36 | Issue: 3 | Pages: 257-265

10.1111/j.1365-2036.2012.05174.x | PMID 22670798 Get It

SummaryBackgroundThe extent to which potentially curative therapies are used in patients with hepatocellular cancer (HCC) and their related outcomes are unknown in the US.AimTo determine the rate and outcomes of potentially curative treatment in patients with HCC.MethodsEleven US centers followed patients with HCC between 2001 and 2007. We determined rates of liver transplantation, surgical resection, or tumour ablation during follow‐up, examined differences in adjusted survival of patients receiving these treatments, and determined the factors associated with receipt of potentially curative treatment.ResultsOf the 267 patients, 76 (28%) patients had early HCC, defined as Child A or B cirrhosis, with a solitary HCC or ≤3 nodules, each ≤3 cm. Of these, 53 (69.7%) received curative treatment. Thirty six percent of patients with non‐early HCC received curative treatment. Compared to patients with non‐early HCC who did not receive curative treatment, patients with early HCC and curative treatment had the best survival [hazard ratio, HR = 0.19 (95% CI, 0.08–0.42)] followed by patients with advanced HCC who received curative treatment [HR = 0.37 (95% CI, 0.22–0.64)]. Baseline performance status was significantly associated with receipt of curative treatment as well as survival after adjusting for demographics, clinical characteristics, and HCC stage.ConclusionsIn this multicenter database, most of the patients with early HCC received potentially curative treatment. However, only 28% of patients had early HCC. One‐third of patients with non‐early HCC also underwent curative therapy. Potentially curative treatment improved survival and this effect was seen in patients with early as well as non‐early HCC.
Outcomes of transplantation using organs from a donor infected with Klebsiella pneumoniae carbapenemase ( KPC )‐producing K. pneumoniae
Ariza‐Heredia, Ella , Patel, Robin , Walker, Randall C., Evans, John J. , Willliams, M.D., Rogers, Jason H. , Milano, Carmelo A. , Blumberg, Emily A. , Lewis, Russell Edward , Sankar, Adhithya , Razonable, Raymund R. , Patel, Robin

Transplant Infectious Disease | May 25, 2012 | Volume: 14 | Issue: 3 | Pages: 229-236

10.1111/j.1399-3062.2012.00742.x | PMID 22624726 Get It

Abstract Transmission of pathogens from donor to recipient is a potential complication of organ transplantation. Herein, we describe the clinical course and outcomes of 4 transplant recipients who received tissues from a donor with multi‐organ infection with Klebsiella pneumoniae carbapenemase ( KPC )‐producing K. pneumoniae . Recipient 1 underwent simultaneous liver and kidney transplantation for alpha‐1 antitrypsin deficiency and alcohol‐related cirrhosis, and acute tubular necrosis, respectively. Soon after transplantation, he developed an infected hematoma and peritonitis due to KPC ‐producing K. pneumoniae despite receiving tigecycline prophylaxis. He was treated with a prolonged course of tigecycline, amikacin, and meropenem, in conjunction with surgical evacuation and percutaneous drainage of the infected fluid collections. Recipient 2 underwent living‐donor liver transplantation for cholangiocarcinoma and primary sclerosing cholangitis using vein graft from the donor infected with KPC ‐producing K. pneumoniae . Culture of the preservation fluid containing the vein graft was positive for KPC ‐producing K. pneumoniae . The patient received preemptive amikacin and tigecycline, and he did not develop any infection (as evidenced by negative surveillance blood cultures). The isolates from the donor and Recipients 1 and 2 were indistinguishable by pulsed‐field gel electrophoresis. Recipients 3 and 4 underwent kidney and heart transplantation, respectively; both patients received perioperative tigecycline prophylaxis and did not develop infections due to KPC ‐producing K. pneumoniae . All transplant recipients had good short‐term outcomes. These cases highlight the importance of inter‐institutional communication and collaboration to ensure the successful management of recipients of organs from donors infected with multidrug‐resistant organisms.
Anticoagulants and antiplatelet agents in acute ischemic stroke [RETIRED]
Coull, Bruce M. , Williams, Linda S. , Heitzman, Daragh, Johnston, Karen C. , Starkman, Sidney , Wilterdink, Janet L., Goldstein, Larry B. , Meschia, James F. , Chaturvedi, Seemant , Morgenstern, Lewis B. , Levine, Steven R. , Saver, Jeffrey L.

Neurology | May 13, 2012 | Volume: 59 | Issue: 1 | Pages: 13-22

10.1212/wnl.59.1.13 | PMID 12105302 Get It

Hepatic Artery Embolization for Neuroendocrine Tumors: Postprocedural Management and Complications
Lewis, Mark A. , Jaramillo, Sylvia, Roberts, Lewis R. , Fleming, Chad J. , Rubin, Joseph, Grothey, Axel, Roberts, Lewis R

The Oncologist | April 18, 2012 | Volume: 17 | Issue: 5 | Pages: 725-731

10.1634/theoncologist.2011-0372 | PMID 22511263 Get It

AbstractLearning Objectives:After completing this course, the reader will be able to:Identify the components of the “postembolization syndrome”: elevated liver function tests, right upper quadrant pain, nausea and vomiting, and fever.Distinguish the postembolization syndrome from rare complications of embolization that would merit an extended hospitalization.CME This article is available for continuing medical education credit at CME.TheOncologist.comBackground.There is scant evidence to guide the management of patients after hepatic artery embolization (HAE). We examined length of stay (LOS), laboratory patterns, medication usage, morbidity, and mortality of patients hospitalized after HAE for metastatic neuroendocrine tumors.Methods.Data were abstracted retrospectively from electronic medical records on LOS, liver function tests (LFTs), i.v. antibiotics, analgesia, peak temperature, bacteremia, hepatic abscess formation, carcinoid crisis, and metastatic burden on cross-sectional imaging.Results.In 2005–2009, 72 patients underwent 174 HAEs for carcinoid and islet cell tumors. The median LOS was 4 days (range, 1–8 days). There was no correlation between peak LFTs and tumor burden. Declines in LFTs were not uniform before hospital discharge; 25%, 37%, 30%, 53%, and 67% of patients were discharged before their respective aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, and total and direct bilirubin levels began to decline, with no readmissions for acute hepatic failure. The median i.v. analgesia dose was 60 mg oral morphine equivalents (range, 3–1,961 mg). Pre-HAE i.v. antibiotics were administered in 99% of cases; post-HAE fever occurred in 37% of patients, with no documented bacteremia. One patient developed a hepatic abscess after HAE. There were two carcinoid crises. The single in-hospital death was associated with air in the portal veins.Conclusions.The duration and intensity of in-hospital care following HAE should be managed on an individual basis. A downward trend in LFTs is not required before discharge. Modest use of i.v. analgesia suggests that many patients could exclusively receive oral analgesics. Given the rarity of serious complications, hospital stays could be shortened, thereby reducing costs and nosocomial risks.
A Balancing Act
Lewis, Mark A.

Journal of Clinical Oncology | April 17, 2012 | Volume: 30 | Issue: 15 | Pages: 1891-1892

10.1200/jco.2011.41.5695 | PMID 22508820 Get It

Increased IgG4-Positive Plasma Cells in Granulomatosis with Polyangiitis: A Diagnostic Pitfall of IgG4-Related Disease
Chang, Sing Yun, Keogh, Karina A., Lewis, Jean E., Ryu, Jay H. , Yi, Eunhee S. , Ryu, Jay H

International Journal of Rheumatology | April 11, 2012 | Volume: 2012 | Issue: No issue available | Pages: 1-6

10.1155/2012/121702 | PMID 22577389 Get It

Granulomatosis with polyangiitis (Wegener’s) (GPA) may mimic IgG4-related disease (IgG4-RD) on histologic examination of some biopsies, especially those from head and neck sites. IgG4 immunostain is often performed in this context for differential diagnosis with IgG4-RD. However, the prevalence of IgG4+ cells in GPA has not been explored. We examined the IgG4+ cells in 26 cases confirmed as GPA by a thorough clinical and pathologic assessment. Twenty-six biopsies consisted of 14 sinonasal/oral cavity/nasopharynx, 7 orbit/periorbital, 3 lung/pleura, 1 iliac fossa/kidney, and 1 dura specimens. Eight of 26 (31%) biopsies revealed increased IgG4+ cells (>30/HPF and >40% in IgG4+/IgG+ ratio). The IgG4+ cells and IgG4+/IgG+ ratio ranged 37–137/hpf and 44–83%, respectively. Eight biopsies with increased IgG4+ cells were from sinonasal(n=4)or orbital/periorbital(n=4)sites. In conclusion, increased IgG4+ cells are not uncommonly seen in sinonasal or orbital/periorbital biopsies of GPA, which could pose as a diagnostic pitfall.
Preoperative Assessment of the Pancreas in Multiple Endocrine Neoplasia Type 1
Lewis, Mark A. , Thompson, Geoffrey B. , Young, William F.

World Journal of Surgery | March 1, 2012 | Volume: 36 | Issue: 6 | Pages: 1375-1381

10.1007/s00268-012-1539-7 | PMID 22382771 Get It

AbstractBackgroundMany serologic and radiographic modalities are used for monitoring multiple endocrine neoplasia type 1 (MEN 1) patients for pancreaticoduodenal neuroendocrine tumors (PNETs). We compared serum markers and imaging studies obtained preoperatively with the gross pathology and immunohistochemical findings and correlated preoperative testing with postoperative outcome.MethodsFrom 2000 to 2008, 52 MEN 1 patients [32 (62%) female; median age = 43 years, range 19–74 years] underwent 56 pancreatic operations [49 (88%) distal pancreatectomies] for suspected PNETs. Preoperative serum markers [human pancreatic polypeptide (HPP), gastrin, and glucagon] and imaging [CT, 111In pentetreotide scintigraphy, and endoscopic ultrasound (EUS)] were compared to the pathologic findings. Postoperative serum markers and survival were followed.ResultsHuman pancreatic polypeptide had the highest agreement between an elevated serum level and positive tumor immunostaining (83% vs. 50% agreement for gastrin vs. 67% agreement for glucagon). Preoperative CT had 81% sensitivity and positive predictive value (PPV) of 97% for PNETs. 111In pentetreotide scintigraphy had 84% sensitivity and PPV of 96%. Preoperative endoscopic ultrasonography (EUS) had 100% sensitivity and PPV, with close correlation (rs = 0.93) between the largest lesion seen on EUS and pathology. Median follow‐up was 4.3 years (range = 0.1–10.9 years). Overall survival was 89% at 5‐year follow‐up.ConclusionsOur study substantiates EUS as providing the highest preoperative sensitivity and PPV in assessing the presence of PNETs in MEN 1 patients. CT and octreotide scintigraphy can yield both false‐positive and false‐negative results. HPP, gastrin, and glucagon were the most commonly measured tumor markers in our series but did not always correlate with immunostaining. With an aggressive surgical approach, satisfactory rates of biochemical improvement and long‐term survival were observed.
Genes Associated with Recurrence of Hepatocellular Carcinoma: Integrated Analysis by Gene Expression and Methylation Profiling
Yang, Ju Dong , Seol, So‐Young, Leem, Sun-Hee, Kim, Yong‐Hoon , Sun, Zhifu , Lee, Ju‐Seog , Thorgeirsson, Snorri S., Chu, In‐Sun , Roberts, Lewis R. , Kang, Koo Jeong , Yang, Ju Dong , Roberts, Lewis R , Sun, Zhifu

Journal of Korean Medical Science | November 1, 2011 | Volume: 26 | Issue: 11 | Pages: 1428

10.3346/jkms.2011.26.11.1428 | PMID 22065898 Get It

Multimodal Liver-Directed Management of Neuroendocrine Hepatic Metastases
Lewis, Mark A. , Hubbard, Joleen M.

International Journal of Hepatology | October 30, 2011 | Volume: 2011 | Issue: No issue available | Pages: 1-12

10.4061/2011/452343 | PMID 22121491 Get It

A preponderance of patients with neuroendocrine tumors (NETs) will experience hepatic metastases during the course of their disease. Many diagnoses of NETs are made only after the neoplasms have spread from their primary gastroenteropancreatic sites to the liver. This paper reviews current evidence-based treatments for neuroendocrine hepatic metastases, encompassing surgery, hepatic artery embolization (HAE) and chemoembolization (HACE), radioembolization, hepatic artery infusion (HAI), thermal ablation (radiofrequency, microwave, and cryoablation), alcohol ablation, and liver transplantation as therapeutic modalities. Consideration of a multidisciplinary approach to liver-directed therapy is strongly encouraged to limit morbidity and mortality in this patient population.
Prognostic Impact of Body Mass Index Stratified by Smoking Status in Patients With Esophageal Adenocarcinoma
Yoon, Harry H. , Lewis, Mark A. , Shi, Qian , Khan, Maliha , Cassivi, Stephen D. , Diasio, Robert B. , Sinicrope, Frank A. , Shi, Qian

Journal of Clinical Oncology | October 11, 2011 | Volume: 29 | Issue: 34 | Pages: 4561-4567

10.1200/jco.2011.37.1260 | PMID 21990414 Get It

Purpose Given that smoking affects body mass index (BMI) and survival, stratification by smoking status may be required to determine the true prognostic impact of BMI. Although obesity increases risk for developing esophageal adenocarcinoma (EAC), the prognostic influence of obesity and its potential modification by smoking status is unknown in this disease. Patients and Methods All patients (N = 778) underwent potentially curative esophagectomy. BMI was calculated using measured height and weight at surgery and categorized as obese (≥ 30 kg/m 2 ), overweight (25 to 29.9 kg/m 2 ), or normal (18.5 to 24.9 kg/m 2 ). Cigarette smoking was categorized as never or ever. The association of BMI with disease-specific survival (DSS), disease-free survival (DFS), and overall survival (OS) was determined by Cox regression. Results Excess BMI was significantly associated with DSS in a manner that differed substantially by smoking status (P for interaction = .023). Among never smokers, obesity was significantly associated with adverse DSS (hazard ratio [HR] = 2.11; 95% CI, 1.31 to 3.43; P = .002), DFS (HR = 2.03; 95% CI, 1.30 to 3.18; P = .002), and OS (HR = 1.97; 95% CI, 1.24 to 3.14; P = .004), as compared with normal weight, after adjusting for covariates. By contrast, among ever smokers, obesity was not prognostic, and overweight status was significantly associated with favorable survival in univariate, but not multivariate, analysis. Conclusion Obesity among never smokers was independently associated with two-fold worsening of DSS, DFS, and OS after surgery for EAC, after adjusting for known prognostic factors. These data, in one of the largest reported resected EAC cohorts, are the first to show an adverse prognostic impact of obesity in EAC.