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| 1 | Clinical epidemiology and disease burden of nonalcoholic fatty liver disease显示文摘Nonalcoholic fatty liver disease(NAFLD) is defined as the presence of hepatic fat accumulation after the exclusion of other causes of hepatic steatosis, including other causes of liver disease, excessive alcohol consumption, and other conditions that may lead to hepatic steatosis. NAFLD encompasses a broad clinical spectrum ranging from nonalcoholic fatty liver to nonalcoholic steatohepatitis(NASH), advanced fibrosis, cirrhosis, and finally hepatocellular carcinoma(HCC). NAFLD is the most common liver disease in the world and NASH may soon become the most common indication for liver transplantation. Ongoing persistence of obesity with increasing rate of diabetes will increase the prevalence of NAFLD, and as this population ages, many will develop cirrhosis and end-stage liver disease. There has been a general increase in the prevalence of NAFLD, with Asia leading the rise, yet the United States is following closely behind with a rising prevalence from 15% in 2005 to 25% within 5 years. NAFLD is commonly associated with metabolic comorbidities, including obesity, type Ⅱ diabetes, dyslipidemia, and metabolic syndrome. Our understanding of the pathophysiology of NAFLD is constantly evolving. Based on NAFLD subtypes, it has the potential to progress into advanced fibrosis, end-stage liver disease and HCC. The increasing prevalence of NAFLD with advanced fibrosis, is concerning because patients appear toexperience higher liver-related and non-liver-related mortality than the general population. The increased morbidity and mortality, healthcare costs and declining health related quality of life associated with NAFLD makes it a formidable disease, and one that requires more in-depth analysis. | Brandon J Perumpail Muhammad Ali Khan Eric R Yoo George Cholankeril Donghee Kim Aijaz Ahmed | 2017 | World Journal of Gastroenterology2017，23，47： | 70 |
| 2 | Abdominal applications of diffusion-weighted magnetic resonance imaging: Where do we stand?显示文摘Diffusion-weighted imaging (DWI) is one of the magnetic resonance imaging (MRI) sequences providing qualitative as well as quantitative information at a cellular level. It has been widely used for various applications in the central nervous system. Over the past decade, various extracranial applications of DWI have been increasingly explored, as it may detect changes even before signal alterations or morphological abnormalities become apparent on other pulse sequences. Initial results from abdominal MRI applications are promising, particularly in oncological settings and for the detection of abscesses. The purpose of this article is to describe the clinically relevant basic concepts of DWI, techniques to perform abdominal DWI, its analysis and applications in abdominal visceral MR imaging, in addition to a brief overview of whole body DWI MRI. | Ajaykumar C Morani Khaled M Elsayes Peter S Liu William J Weadock Janio Szklaruk Jonathan Russell Dillman Asra Khan Thomas L Chenevert Hero K Hussain | 2013 | World Journal of Radiology2013，5，3： | 12 |
| 3 | Immune response to an indigenously developed r-Hepatitis B vaccine in mixed population: Study of an accelerated vaccination schedule显示文摘AIM: To establish the safety and efficacy of an indigenously developed r-hepatitis B vaccine using an accelerated schedule and to highlight the social awareness and commitment in preventing the spreading of hepatitis B virus infection.METHODS: The study was a multicentric, double blind,randomized (3:1) study using three doses of vaccine immunization schedule (20 μg for those above 10 years old and 10 μg for those below 10 years old) on d 0, 30and 60. One hundred and sixty-six subjects were enrolled(87 males and 76 females aged 5-35 years). The main outcome measure was assessment of immunogenicity and safety.RESULTS: A 100% seroconversion response was observed on the 30th d after the 1st injection in both the experimental groups. The sero-protection data reported a 41.2-65.6% response on the 30th d after the 1st injection and reached 100% on the 60th d. Descriptive statical analysis showed a geometric mean titer value of 13.77 mIU/mL in the test (BEVAC) group and 10.95 mIU/mL in the commercial control (ENGERIX-B) group on the 30th d after the 1st injection. The response on the 60th d showed a geometric mean titre value (GMT) of 519.84 mIU/mL in the BEVAC group and 475.46 mIU/mL in the ENGERIX-B group. On the 90th d, the antibody titer response was observed to be 2627.58 mIU/mL in the BEVAC group and 2272.72 mIU/mL in the ENGERIX-B group. Two subjects in each group experienced pains at injection site after the first vaccination. A total of six subjects in both groups experienced a solicited adverse reaction, which included pains, swelling and redness at the injection site, three subjects in the group-B had a pain at the injection site after the third dose. No other serious adverse events occurred and no dose-related local or general symptoms were observed during the study.CONCLUSION: The vaccine is safe, efficacious and immunogenic in comparison with the well documented ENGERIX-B. | A Chowdhury A Santra CM Habibullah AA Khan J Karunakaramaiah TSA Kishore AVR Raju S Lahiri | 2005 | World Journal of Gastroenterology2005，11，7： | 12 |
| 4 | Advances in hepatocellular carcinoma: Nonalcoholic steatohepatitis-related hepatocellular carcinoma显示文摘An increase in the prevalence of obesity and diabetes mellitus has been associated with the rise in non-alcoholic fatty liver disease(NAFLD). Two-thirds of the obese and diabetic populations are estimated to develop NAFLD. Currently, NAFLD is the most common etiology for chronic liver disease globally. The clinical spectrum of NAFLD ranges from simple steatosis, an accumulation of fat greater than 5% of liver weight, to nonalcoholic steatohepatitis(NASH), a more aggressive form with necroinflammation and fibrosis. Among the patients who develop NASH, up to 20% may advance to cirrhosis and are at risk for complications of end-stage liver disease. One of the major complications observed in patients with NASH-related cirrhosis is hepatocellular carcinoma(HCC), which has emerged as the sixth most common cancer and second leading etiology of cancer-related deaths worldwide. The incidence of HCC in the United States alone has tripled over the last three decades. In addition, emerging data are suggesting that a small proportion of patients with NAFLD may be at higher risk for HCC in the absence of cirrhosis - implicating obesity and diabetes mellitus as potential risk factors for HCC. | Fauzia Z Khan Ryan B Perumpail Robert J Wong Aijaz Ahmed | 2015 | World Journal of Hepatology2015，7，18： | 10 |
| 5 | Association between facet joint osteoarthritis and the Oswestry Disability Index显示文摘AIM:To investigate the correlation of facet joint osteoarthritis(FJOA) at lumbar levels L4/L5 and L5/S1 and the Oswestry Disability Index(ODI).METHODS:The study involved lumbar MRIs of 591 patients with a mean age of 47.3 years.The MRIs of the lumbar spine were performed on a 1.5 Tesla scanner(Magnetom Avanto,Siemens AG,Erlangen,Germany) using a dedicated receive only spine coil.After initial blinding,each dataset was evaluated by 2 board certified radiologist with more than 5 years experience in musculoskeletal imaging.In total 2364 facet joints were graded.Degenerative changes of the facet joints were evaluated according to the 4-point scale as proposed by Weishaupt et al Functional status was assessed using the ODI.The index is scored from 0 to 100 and interpreted as follows:0%-20%,minimaldisability; 20%-40%,moderate disability; 40%-60%,severe disability; 60%-80%,crippled; 80%-100%,patients are bedbound.Spearman's coefficient of rank correlation was used for statistical analysis,with significance set at P < 0.05.RESULTS:In total 2364 facet joints at lumbar levels L4/5 and L5/S1 were analysed in 591 individuals.FJOA was present in 97%(L4/L5) and 98%(L5/S1).At level L4/5(left/right) 17/15(2.9%/2.5%) were described as grade 0,146/147(24.7%/24.9%) as grade 1,290/302(49.1%/51.1%) as grade 2 and 138/127(23.4%/21.5%) as grade 3.At level L5/S1(left/right) 10/11(1.7%/1.9%) were described as grade 0,136/136(23.0%/23.0%) as grade 1,318/325(53.8%/55.0%) as grade 2 and 127/119(21.5%/20.1%) as grade 3.Regarding the ODI scores,patients' disability had a minimum of 0% and a maximum of 91.11% with an arithmetic mean of 32.77% ± 17.02%.The majority of patients(48.39%) had moderate functional disability(21%-40%).There was no significant correlation between FJOA and ODI on both sides of lumbar level L4/5 and on the left side of lumbar level L5/S1.A weak positive correlation was evaluated between ODI and FJOA on the right side of lumbar level L5/S1.CONCLUSION:The missing correlation of FJOA and ODI confirms our clinical experience that imaging alone is an insufficient approach explaining low back pain.Clinical correlation is imperative for an adequate diagnostic advance in patients with low back pain. | Adel Maataoui Thomas J Vogl Marcus Middendorp Konstantinos Kafchitsas M Fawad Khan | 2014 | World Journal of Radiology2014，6，11： | 6 |
| 6 | Correlation of lumbar lateral recess stenosis in magnetic resonance imaging and clinical symptoms显示文摘AIM To assess the correlation of lateral recess stenosis(LRS) of lumbar segments L4/5 and L5/S1 and the Oswestry Disability Index(ODI).METHODS Nine hundred and twenty-seven patients with history of low back pain were included in this uncontrolled study.On magnetic resonance images(MRI) the lateral recesses(LR) at lumbar levels L4/5 and L5/S1 were evaluated and each nerve root was classified into a 4-point grading scale(Grade 0-3) as normal,not deviated,deviated or compressed.Patient symptoms and disability were assessed using ODI.The Spearman's rank correlation coefficient was used for statistical analysis(P < 0.05).RESULTS Approximately half of the LR revealed stenosis(grade 1-3;52% at level L4/5 and 42% at level L5/S1) with 2.2% and 1.9% respectively reveal a nerve root compression.The ODI score ranged from 0%-91.11% with an arithmetic mean of 34.06% ± 16.89%.We observed a very weak statistically significant positive correlation between ODI and LRS at lumbar levels L4/5 and L5/S1,each bilaterally(L4/5 left:rho < 0.105,P < 0.01;L4/5 right:rho < 0.111,P < 0.01;L5/S1 left:rho 0.128,P < 0.01;L5/S1 right:rho < 0.157,P < 0.001).CONCLUSION Although MRI is the standard imaging tool for diagnosing lumbar spinal stenosis,this study showed only a weak correlation of LRS on MRI and clinical findings.This can be attributed to a number of reasons outlined in this study,underlining that imaging findings alone are not sufficient to establish a reliable diagnosis for patients with LRS. | Annina SplettstoBer M Fawad Khan Bernd Zimmermann Thomas J Vogl Hanns Ackermann Marcus Middendorp Adel Maataoui | 2017 | World Journal of Radiology2017，9，5： | 4 |
| 7 | Magnetic resonance imaging-based interpretation of degenerative changes in the lower lumbar segments and therapeutic consequences显示文摘Intervertebral disc degeneration and facet joint osteoarthritis of the lumbar spine are, among others, wellknown as a cause of low back and lower extremity pain. Together with their secondary disorders they set a big burden on health care systems and economics worldwide. Despite modern imaging modalities, such as magnetic resonance imaging, for a large proportion of patients with low back pain(LBP) it remains difficult to provide a specific diagnosis. The fact that nearly all the lumbar structures are possible sources of LBP, may serve as a possible explanation. Furthermore, our clinical experience confirms, that imaging alone is not a sufficient approach explaining LBP. Here, the Oswestry Disability Index, as the most commonly used measure to quantify disability for LBP, may serve as an easy-toapply questionnaire to evaluate the patient's ability to cope with everyday life. For therapeutic purposes, among the different options, the lumbar facet joint intraarticular injection of corticosteroids in combination with an anaesthetic solution is one of the most frequently performed interventional procedures. Although widely used the clinical benefit of intra-articular steroid injections remains controversial. Therefore, prior to therapy, standardized diagnostic algorithms for an accurate assessment, classification and correlation of degenerative changes of the lumbar spine are needed. | Adel Maataoui Thomas J Vogl M Fawad Khan | 2015 | World Journal of Radiology2015，7，8： | 4 |
| 8 | Current surgical treatment strategies for hepatocellular carcinoma in North America显示文摘Hepatocellular carcinoma(HCC) is an aggressive tumor that often occurs in the setting of chronic liver disease.Many patients do not initially manifest any symptoms of HCC and present late when cure with surgical resection or transplantation is no longer possible.For this reason,patients at high risk for developing HCC are subjected to frequent screening processes.The surgical management of HCC is complex and requires an inter-disciplinary approach.Hepatic resection is the treatment of choice for HCC in patients without cirrhosis and is indicated in some patients with early cirrhosis(Child-Pugh A).Liver transplantation has emerged in the past decade as the standard of care for patients with cirrhosis and HCC meeting Milan criteria and in select patients with HCC beyond Milan criteria.Loco-regional therapy with transarterial chemoembolization,transarterial embolization,radiofrequency ablation and other similar local treatments can be used as neo-adjuvant therapy to downstage HCC to within Milan criteria or as a bridge to transplantation in patients on transplant wait list. | Adeel S Khan Kathryn J Fowler William C Chapman | 2014 | World Journal of Gastroenterology2014，20，41： | 3 |
| 9 | Single vs dual(en bloc) kidney transplants from donors ≤ 5 years of age: A single center experience显示文摘AIM: To compare outcomes between single and dual en bloc(EB) kidney transplants(KT) from small pediatric donors. METHODS: Monocentric nonprospective review of KTs from pediatric donors ≤ 5 years of age. Dual EB KT was defined as keeping both donor kidneys attached tothe inferior vena cava and aorta, which were then used as venous and arterial conduits for the subsequent transplant into a single recipient. Donor age was less useful than either donor weight or kidney size in decision-making for kidney utilization as kidneys from donors < 8 kg or kidneys < 6 cm in length were not transplanted. Post-transplant management strategies were standardized in all patients.RESULTS: From 2002-2015, 59 KTs were performed including 34 dual EB and 25 single KTs. Mean age of donors(17 mo vs 38 mo, P < 0.001), mean weight(11.0 kg vs 17.4 kg, P = 0.046) and male donors(50% vs 84%, P = 0.01) were lower in the dual EB compared to the single KT group, respectively. Mean cold ischemia time(21 h), kidney donor profile index(KDPI; 73% vs 62%) and levels of serum creatinine(SCr, 0.37 mg/d L vs 0.49 mg/d L, all P = NS) were comparable in the dual EB and single KT groups, respectively. Actuarial graft and patient survival rates at 5-years follow-up were comparable. There was one case of thrombosis resulting in graft loss in each group. Delayed graft function incidence(12% dual EB vs 20% single KT, P = NS) was slightly lower in dual EB KT recipients. Initial duration of hospital stay(mean 5.4 d vs 5.6 d) and the one-year incidences of acute rejection(6% vs 16%), operative complications(3% vs 4%), and major infection were comparable in the dual EB and single KT groups, respectively(all P = NS). Mean 12 mo SCr and abbreviated MDRD levels were 1.17 mg/d L vs 1.35 mg/d L and 72.5 m L/min per 1.73 m^2 vs 60.5 m L/min per 1.73 m^2(both P = NS) in the dual EB and single KT groups, respectively. CONCLUSION: By transplanting kidneys from young pediatric donors into adult recipients, one can effectively expand the limited donor pool and achieve excellent medium-term outcomes. | Yousef Al-Shraideh Umar Farooq Hany El-Hennawy Alan C Farney Amudha Palanisamy Jeffrey Rogers Giuseppe Orlando Muhammad Khan Amber Reeves-Daniel William Doares Scott Kaczmorski Michael D Gautreaux Samy S Iskandar Gloria Hairston Elizabeth Brim Margaret Mangus Robert J Stratta | 2016 | World Journal of Transplantation2016，6，1： | 3 |
| 10 | Double-blind randomized sham controlled trial of intraperitoneal bupivacaine during emergency laparoscopic cholecystectomy显示文摘BACKGROUND: Intraperitoneal local anesthesia (IPLA) during elective laparoscopic cholecystectomy (el-LC) decreases post-operative pain. None of the studies have explored the efficacy of IPLA at emergency laparoscopic cholecystectomy (em-LC). A longer operative duration, the greater frequency of washing, and the inflammation associated with cholecystitis or pancreatitis are a few reasons why it cannot be assumed that a benefit in pain scores will be seen in em-LC with IPLA. This study was undertaken to assess the efficacy of IPLA in patients undergoing em-LC. METHODS: Double-blind randomized sham controlled trial was conducted of 41 consecutive subjects undergoing em-LC. IPLA was delivered by a combination of injection to the diaphragmatic and topical wash over the liver and gallbladder with bupivacaine or saline. The primary outcome was visual analogue scale pain scores until discharge. Secondary outcomes included pain scores in theatre recovery and analgesic consumption. RESULTS: One patient had a procedure converted to open and was excluded. There was no significant difference in pain scores in the ward or theatre recovery. Analgesic use, respiratory rate, oxygen saturation, duration to ambulation, eating, satisfaction scores, and time to discharge were comparable between the two groups. CONCLUSIONS: IPLA during em-LC does not influence postoperative pain. Other modalities of analgesia should be explored for decreasing the interval between diagnosis of acute admission and em-LC. | Keith J Roberts Jeff Gilmour Ruplay Pande James Hodson For Tai Lam Saboor Khan | 2013 | Hepatobiliary & Pancreatic Diseases International2013，12，3： | 3 |
| 11 | Reducing the morbidity from extravasation injuries显示文摘 | Khan M S Holmes J D | 2002 | Ann Plast Surg2002，48，6： | 3 |
| 12 | A selective approach to the surgical management of periampullary cancer patients and its outcome显示文摘BACKGROUND: Pancreaticoduodenectomy is a high risk, complex, technically challenging operation associated with significant perioperative morbidity and mortality. This study on the surgical management of periampullary cancer patients is based on our experience in a period of nearly 13 years.METHODS: The study was conducted on two groups of patients: group A included 42 patients who were treated between January 2000 and September 2005 and group B included 134 patients who were treated between October 2005 to October 2012. Preoperative, intraoperative and postoperative details of all these patients were collected, tabulated and analyzed to assess the impact of the selective approach introduced in the department with effect from October 2005.RESULTS: Intraoperative details revealed highly significant differences in the management of the two groups of patients in respect of operative time (250.4 vs 126.6 minutes; P<0.001), operative blood loss (1070.2 vs 414.9 m L; P<0.001) and intraoperative blood transfusion (1.4 vs 0.2 units; P<0.001). Variations between the two groups in the frequency of complications were found to be statistically insignificant. However, the difference between the two groups in the overall morbidity of patients (47.6% vs 26.1%; P=0.009) and the length of their hospital stay (11.8 vs 7.8 days; P<0.001) were significant.CONCLUSION: A selective approach applied to the surgical management of periampullary cancer patients is a step in the right direction. | Omar J Shah Irfan Robbani Parveen Shah Sadaf A Bangri Irfan J Khan Mohammad Y Bhat Manmohan Singh | 2014 | Hepatobiliary & Pancreatic Diseases International2014，13，6： | 3 |
| 13 | Positron emission tomography scanning in the evaluation of hepatocellular carcinoma显示文摘 | M.Akram Khan Connie S Combs Elizabeth M Brunt Val J Lowe Michael K Wolverson Harvey Solomon Brian T Collins Adrian M.Di Bisceglie | 2000 | Journal of Hepatology2000，，5： | 2 |
| 14 | Risk factors for sudden cardiac death to determine high risk patients in specific patient populations that may benefit from a wearable defibrillator显示文摘BACKGROUND There is a high risk for sudden cardiac death(SCD) in certain patient groups that would not meet criteria for implantable cardioverter defibrillator(ICD) therapy.In conditions such as hypertrophic cardiomyopathy(HCM) there are clear risk scores that help define patients who are high risk for SCD and would benefit from ICD therapy. There are however many areas of uncertainty such as certain patients post myocardial infarction(MI). These patients are high risk for SCD but there is no clear tool for risk stratifying such patients.AIM To assess risk factors for sudden cardiac death in major cardiac disorders and to help select patients who might benefit from Wearable cardiac defibrillators(WCD).METHODS A literature search was performed looking for risk factors for SCD in patients post-MI, patients with left ventricular systolic dysfunction(LVSD), HCM, long QT syndrome(LQTS). There were 41 studies included and risk factors and the relative risks for SCD were compiled in table form.RESULTS We extracted data on relative risk for SCD of specific variables such as age,gender, ejection fraction. The greatest risk factors for SCD in post MI patients was the presence of diabetes [Hazard ratio(HR) 1.90-3.80], in patient with LVSD was ventricular tachycardia(Relative risk 3.50), in LQTS was a prolonged QTc(HR36.53) and in patients with HCM was LVH greater than 20 mm(HR 3.10). A proportion of patients currently not suitable for ICD might benefit from a WCDCONCLUSION There is a very high risk of SCD post MI, in patients with LVSD, HCM and LQTS even in those who do not meet criteria for ICD implantation. These patients may be candidates for a WCD. The development of more sensitive risk calculators to predict SCD is necessary in these patients to help guide treatment. | Hilal Mohammed Khan Stephen J Leslie | 2019 | World Journal of Cardiology2019，11，3： | 2 |
| 15 | Quantitative analysis of injuried,necrotic,and apoptotic cells in a new experimental model of intracerebral hemorrhage 显示文摘 | Qureshi AI Ling GS Khan J | 2001 | Crit Care Med2001，29，1： | 1 |
| 16 | Expression profiling identifies the cytoskeletal organizer ezrin and the developmental homeoprotein Six - 1 as key metastatic regulators 显示文摘 | Yu Y Khan J Khanna C | 2004 | Nat Med2004，10，2： | 1 |
| 17 | Gene therapy for myocardial protection: transfection of donor hearts with heat shock protein 70 gene protects cardiac function against ischemia-repeffusion injury 显示文摘 | Jayakumar J Suzuki K Khan M | 2000 | Circulation2000，102，193： | 1 |
| 18 | Pulmonary-vein isolation for atrial fibrillation in patients with heart failure 显示文摘 | Khan MN Jais SP Cummings J | 2008 | N Engl J Med2008，359，17： | 1 |
| 19 | Expression of human DEC-205 (CD205)multilectin receptor on leukocytes 显示文摘 | Kato M Mcdonald K J Khan S | 2006 | Int lmmunol2006，18，6： | 1 |
| 20 | Crosslinkable fumed silica-based nanocomposite electrolytes:role of methacrylate mono-mer in formation of crosslinked silica network显示文摘 | Yerian J A Khan S A Fedkiw P S | 2004 | J PowerSources2004，135，12： | 1 |
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