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1479 citation(s) found for "Ma, Khan".

Use of the Functional Lumen Imaging Probe in Clinical Esophagology
Savarino, Edoardo , Pietro, Massimiliano di , Bredenoord, Albert J. , Carlson, Dustin A. , Clarke, John O. , Khan, Abraham, Vela, Marcelo F. , Pohl, Daniel , Pandolfino, John E. , Gyawali, C. Prakash , Khan, Anzalee , Clarke, J , Gyawali, C P , Khan, Abraham , Savarino, Edoardo , Khan, Abraham, Yadlapati, Rena , Roman, Sabine

American Journal of Gastroenterology | August 1, 2020 | Volume: 115 | Issue: 11 | Pages: 1786-1796

10.14309/ajg.0000000000000773 | PMID 33156096 Get It

The functional lumen imaging probe (FLIP) measures luminal dimensions using impedance planimetry, performed most often during sedated upper endoscopy. Mechanical properties of the esophageal wall and opening dynamics of the esophagogastric junction (EGJ) can be objectively evaluated in esophageal motor disorders, eosinophilic esophagitis, esophageal strictures, during esophageal surgery and in postsurgical symptomatic states. Distensibility index, the ratio of EGJ cross sectional area to intraballoon pressure, is the most useful FLIP metric. Secondary peristalsis from balloon distension can be displayed topographically as repetitive anterograde or retrograde contractile activity in the esophageal body, similar to high-resolution manometry. Real-time interpretation and postprocessing of FLIP metadata can complement the identification of esophageal outflow obstruction and achalasia, especially when findings are inconclusive from alternate esophageal tests in symptomatic patients. FLIP can complement the diagnosis of achalasia when manometry and barium studies are inconclusive or negative in patients with typical symptoms. FLIP can direct adequacy of disruption of the EGJ in achalasia when used during and immediately after myotomy and pneumatic dilation. Lumen diameter measured using FLIP in eosinophilic esophagitis and in complex strictures can potentially guide management. An abbreviated modification of the Grading of Recommendations Assessment, Development, and Evaluation was used to determine the quality of available evidence and recommendations regarding FLIP utilization. FLIP metrics that are diagnostic or suggestive of an abnormal motor pattern and metrics that define normal esophageal physiology were developed by consensus and are described in this review.
Association of Event-Free and Distant Recurrence–Free Survival With Individual-Level Pathologic Complete Response in Neoadjuvant Treatment of Stages 2 and 3 Breast Cancer
Yee, Douglas , Symmans, W. Fraser , Albain, Kathy S. , Chen, Yunn-Yi, Krings, Gregor , Wei, Shi , Harada, Shuko , Datnow, Brian, Fadare, Oluwole , Klein, Molly, Chen, Beiyun, Adamson, Kathi, Sams, Sharon B. , Mhawech‐Fauceglia, Paulette , Magliocco, Anthony M., Feldman, Mike, Rendi, Mara H. , Sattar, Husain, Zeck, Jay , Ocal, Idris Tolgay, Tawfik, Ossama , LeBeau, Lauren, Sahoo, Sunati , Vinh, Tuyethoa N., Chien, A. Jo , Forero‐Torres, Andres , Stringer-Reasor, Erica , Ellis, Erin D. , Lu, Janice , Lang, Julie E. , Clark, Amy S. , Nanda, Rita , Northfelt, Donald W. , Khan, Qamar J. , Viscusi, Rebecca K., Euhus, David , Edmiston, Kirsten K., Kemmer, Kathleen, Park, John W., Liu, Minetta C. , Olopade, Olufunmilayo I. , Leyland‐Jones, Brian , Tripathy, Debasish , Moulder, Stacy L. , Schwab, Richard B. , Lo, Shelly S. , Beckwith, Heather , Haugen, Patricia, Veer, Laura J. van’t , Perlmutter, Jane , Melisko, Michelle , Wilson, Amy , Peterson, Garry , Buxton, Meredith , Paoloni, Melissa, Clennell, Julia L. , Hirst, Gillian L. , Singhrao, Ruby , Steeg, Katherine, Matthews, Jeffrey B. , Asare, Smita , Sanil, Ashish, Esserman, Laura J. , Berry, Donald A. , Tripathy, Debu , Ocal, Idris T, Olopade, Olufunmilayo I , Symmans, W Fraser , Esserman, Laura J , Hirst, Gillian L , Yee, Douglas , DeMichele, Angela , Yau, Christina , Isaacs, Claudine , Chen, Yunn‐Yi , Krings, Gregor, Pambuccian, Stefan E. , Wallace, Anne M. , Pusztai, Lajos , Boughey, Judy C. , Elias, Anthony , Han, Hyo S , Chui, Stephen Y., Rugo, Hope S. , Helsten, Teresa L. , Hylton, Nola M. , Asare, Adam L. , Matthews, Jeffrey B., Berry, Scott

JAMA Oncology | July 23, 2020 | Volume: 6 | Issue: 9 | Pages: 1355

10.1001/jamaoncol.2020.2535 | PMID 32701140 Get It

Evaluation of Vasopressor Exposure and Mortality in Patients With Septic Shock*
Roberts, Russel J. , Patel, Gourang , Chen, Jen‐Ting , Phillips, Kristy M. , Lopez, Natasha , Qadir, Nida , Cairns, Charles B. , Mathews, Kusum S. , Park, Pauline, Khan, Akram , Gilmore, James F. , Brown, Anne Rain , Tsuei, Betty J., Handzel, Michele, Chang, Alfredo Lee, Herbert, James T. , Martinez, Anthony , Tonna, Joseph E. , Nazer, Lama , Heavner, Mojdeh S. , Pender, Erin, Chambers, Lauren, Kenes, Michael T. , Kaufman, David A. , Downey, April, Brown, Brent R. , Chaykosky, Darlene, Wolff, Armand, Smith, Michael , Nault, Katie, Gong, Michelle N. , Sevransky, Jonathan, Lat, Ishaq , Network, on behalf of the Observation of VariatiOn in fLUids adMinistEred in shock-CHaracterizAtion of vaSoprEssor Requirements in Shock (VOLUME-CHASERS) Study Group and SCCM Discovery, Tonna, Joseph E. , Heavner, Mojdeh S , Khan, Akram , Miano, Todd A. , Hammond, Drayton A , Kashani, Kianoush , Park, Pauline K. , Duggal, Abhijit , Lanspa, Michael J. , Ammar, Mahmoud A , Network, on behalf of the Observation of VariatiOn in fLUids adMinistEred in shock-CHaracterizAtion of vaSoprEssor Requirements in Shock (VOLUME-CHASERS) Study Group and SCCM Discovery

Critical Care Medicine | July 22, 2020 | Volume: 48 | Issue: 10 | Pages: 1445-1453

10.1097/ccm.0000000000004476 | PMID 32706559 Get It

Objectives: The objectives of this study were to: 1) determine the association between vasopressor dosing intensity during the first 6 hours and first 24 hours after the onset of septic shock and 30-day in-hospital mortality; 2) determine whether the effect of vasopressor dosing intensity varies by fluid resuscitation volume; and 3) determine whether the effect of vasopressor dosing intensity varies by dosing titration pattern. Design: Multicenter prospective cohort study between September 2017 and February 2018. Vasopressor dosing intensity was defined as the total vasopressor dose infused across all vasopressors in norepinephrine equivalents. Setting: Thirty-three hospital sites in the United States ( n = 32) and Jordan ( n = 1). Patients: Consecutive adults requiring admission to the ICU with septic shock treated with greater than or equal to 1 vasopressor within 24 hours of shock onset. Interventions: None. Measurements and Main Results: Out of 1,639 patients screened, 616 were included. Norepinephrine (93%) was the most common vasopressor. Patients received a median of 3,400 mL (interquartile range, 1,851–5,338 mL) during the 24 hours after shock diagnosis. The median vasopressor dosing intensity during the first 24 hours of shock onset was 8.5 μg/min norepinephrine equivalents (3.4–18.1 μg/min norepinephrine equivalents). In the first 6 hours, increasing vasopressor dosing intensity was associated with increased odds ratio of 30-day in-hospital mortality, with the strength of association dependent on concomitant fluid administration. Over the entire 24 hour period, every 10 μg/min increase in vasopressor dosing intensity was associated with an increased risk of 30-day mortality (adjusted odds ratio, 1.33; 95% CI, 1.16–1.53), and this association did not vary with the amount of fluid administration. Compared to an early high/late low vasopressor dosing strategy, an early low/late high or sustained high vasopressor dosing strategy was associated with higher mortality. Conclusions: Increasing vasopressor dosing intensity during the first 24 hours after septic shock was associated with increased mortality. This association varied with the amount of early fluid administration and the timing of vasopressor titration.
Nine-year prospective efficacy and safety of brain-responsive neurostimulation for focal epilepsy
Nair, Dileep , Laxer, Kenneth D. , Weber, Peter, Murro, Anthony M., Park, Yong D., Barkley, Gregory L., Smith, Brien, Gwinn, Ryder P. , Doherty, Michael J. , Zimmerman, Richard S. , Bergey, Gregory K. , Anderson, William S. , Heck, Christianne, Liu, Charles Y. , Lee, Ricky W. , Sadler, Toni, Duckrow, Robert B., Wharen, Robert E. , Tatum, William O. , Srinivasan, Shraddha, Agostini, Mark, Alexopoulos, Andreas V. , Jobst, Barbara C. , Roberts, David W. , Salanova, Vicenta , Witt, Thomas C., Cash, Sydney S. , Halford, Jonathan J. , Spencer, David , Ernst, Lia , Skidmore, Christopher , Sperling, Michael R. , Miller, Ian , Geller, Eric B., Berg, Michel J., Fessler, A. James, Rutecki, Paul , Mizrahi, Eli M., Shields, Donald C. , Schwartz, Theodore H. , Labar, Douglas, Fountain, Nathan B. , Elias, W. Jeff, Olejniczak, Piotr W., Villemarette-Pittman, Nicole R. , Eisenschenk, Stephan, Roper, Steven N. , Boggs, Jane , Courtney, Tracy A., Sun, Felice T., Seale, Cairn G. , Miller, Kathy L. , Skarpaas, Tara L. , Morrell, Martha J. , Study, on behalf of the RNS System LTT, Meador, Kimford J. , Vossler, David G. , Hays, Ryan , Liow, Kore , Nair, Dileep R, Weber, Peter B, Smith, Brien J, Noe, Katherine H. , McKhann, Guy M. , Agostini, Mark A, Alexopoulos, Andreas V , Edwards, Jonathan C, Spencer, David C, Skidmore, Christopher T., Goldman, Alica M. , Gross, Robert E, Labar, Douglas R, Boggs, Jane G, Sperling, Michael R , Halford, Jonathan J , Fountain, Nathan , Meador, Kimford J , Jobst, Barbara , Nair, Dileep R , Skidmore, Christopher , Morrell, Martha J , Ernst, Lia D , Hirsch, Lawrence J. , Cole, Andrew J. , Worrell, Gregory A. , Lundstrom, Brian N. , Edwards, Jonathan C. W. , Gross, Robert E. , Study, on behalf of the RNS System LTT

Neurology | July 20, 2020 | Volume: 95 | Issue: 9 | Pages: No page available

10.1212/wnl.0000000000010154 | PMID 32690786 Get It

Evaluating the Prevalence of Pelvic Floor Disorders in Women in Nonmetropolitan Communities
Khan, Aqsa , Carolan, Alexandra , Tay, Kimberly, Wolter, Christopher , Zhang, Nan

Female Pelvic Medicine & Reconstructive Surgery | July 5, 2020 | Volume: 27 | Issue: 2 | Pages: e295-e300

10.1097/spv.0000000000000908 | PMID 33497070 Get It

Introduction Prevalence rates of pelvic floor disorders in women in nonmetropolitan communities compared with metropolitan communities are unknown. We hypothesize that the rates are higher in women in nonmetropolitan communities. Methods We accessed the health survey data from the NHANES (National Health and Nutrition Examination Survey) from 2009 to 2010 divided by geocodes into nonmetropolitan (<50,000 inhabitants) and metropolitan communities (>50,000). Responses were analyzed for the following conditions: urinary incontinence and nocturia, bowel urgency and anal incontinence, and symptomatic vaginal bulge. Age-adjusted prevalence rates were estimated using logistic regression. Results The 2009–2010 NHANES survey was completed nationwide by 302 women in nonmetropolitan communities and 2201 women in metropolitan communities. Overall, prevalence rates of PFDs did not significantly differ between groups. Prevalence rates of urinary incontinence and nocturia at least weekly were similar between metropolitan and nonmetropolitan groups (16.2% vs 14.6%, P = 0.47), with stress incontinence being more common than urgency and other types of incontinence (40% vs 23% and 8%). Women in metropolitan communities reported more bowel urgency than women in nonmetropolitan communities (33.3% vs 26.8%, P = 0.02); however, prevalence rates between both groups are similar with regards to anal incontinence at least once a month or more (9.2% vs 9.0%, P = 0.76). Prolapse symptoms were also not significantly different between the groups (2.4% in both). There was an increase in prevalence in each of the pelvic floor disorder symptoms with age. Conclusions Pelvic floor disorders are prevalent and increase with age in women in nonmetropolitan communities at rates similar to women in metropolitan communities.
Trends of Clinical Outcomes and Health Care Resource Use in Heart Failure in the United States
Khan, Safi U. , Khan, Muhammad Zia , Alkhouli, Mohamad , Alkhouli, Mohamad , Khan, Safi , Khan, Muhammad Zia

Journal of the American Heart Association | July 4, 2020 | Volume: 9 | Issue: 14 | Pages: No page available

10.1161/jaha.120.016782 | PMID 32628064 Get It

Background Heart failure (HF) imparts a significant clinical and economic burden on the health system in the United States. Methods and Results We used the National Inpatient Sample database between September 2002 and December 2016. We examined trends of comorbidities, inpatient mortality, and healthcare resource use in patients admitted with acute HF. Outcomes were adjusted for demographic variables, comorbidities, and inflation. A total of 11 806 679 cases of acute HF hospitalization were identified. The burden of coronary artery disease, peripheral vascular disease, valvular heart disease, diabetes mellitus, hypertension, anemia, cancer, depression, and chronic kidney disease among patients admitted with acute HF increased over time. The adjusted mortality decreased from 6.8% in 2002 to 4.9% in 2016 ( P‐ trend<0.001; average annual decline, 1.99%), which was consistent across age, sex, and race. The adjusted mean length of stay decreased from 8.6 to 6.5 days ( P <0.001), but discharge disposition to a long‐term care facility increased from 20.8% to 25.6% ( P <0.001). The inflation adjusted mean cost of stay increased from $14 301 to $17 925 ( P <0.001) (average annual increase, 1.52%), which was partially explained by the higher proportion of procedures (echocardiogram, right heart catheterization, use of ventricular assist devices, coronary artery bypass grafting) and the higher incidence of HF complications (cardiogenic shock, respiratory failure, ventilator, and renal failure requiring dialysis). Conclusions This national data set showed that despite increasing medical complexities, there was significant reduction in inpatient mortality and length of stay. However, these measures were counterbalanced by a higher proportion of discharge disposition to long‐term care facilities and expensive cost of care.
Pathophysiological Mechanisms Underlying Excess Risk for Diabetes and Cardiovascular Disease in South Asians: The Perfect Storm
Singh, Sumitabh , Mahtta, Dhruv , Bittner, Vera , Sperling, Laurence , Mehta, Anurag , Saeed, Anum , Virani, Salim S.

Current Diabetes Reviews | July 3, 2020 | Volume: 17 | Issue: 9 | Pages: No page available

10.2174/1573399816666200703182458 | PMID 32619174 Get It

Background: South Asians are at a significantly increased risk of type 2 diabetes (T2D) and cardiovascular disease (CVD), are diagnosed at relatively younger ages, and exhibit more severe disease phenotypes as compared with other ethnic groups. The pathophysiological mechanisms underlying T2D and CVD risk in South Asians are multifactorial and intricately related. Method: A narrative review of the pathophysiology of excess risk of T2D and CVD in South Asians. Result: T2D and CVD have shared risk factors that encompass biological factors (early life influences, impaired glucose metabolism, and adverse body composition) as well as behavioral and environmental risk factors (diet, sedentary behavior, tobacco use, and social determinants of health). Genetics and epigenetics also play a role in explaining the increased risk of T2D and CVD among South Asians. Additionally, South Asians harbor several lipid abnormalities including high concentration of small-dense low-density lipoprotein (LDL) particles, elevated triglycerides, low high-density lipoprotein (HDL)- cholesterol levels, dysfunctional HDL particles, and elevated lipoprotein(a) that predispose them to CVD. Conclusion: In this comprehensive review, we have discussed risk factors that provide insights into the pathophysiology of excess risk of T2D and CVD in South Asians.
Variation in Fluid and Vasopressor Use in Shock With and Without Physiologic Assessment: A Multicenter Observational Study
Chen, Jen‐Ting , Roberts, Russel J. , Qadir, Nida , Cairns, Charles B. , Mathews, Kusum S. , Park, Pauline, Khan, Akram , Gilmore, James F. , Brown, Anne Rain , Tsuei, Betty J., Handzel, Michele, Chang, Alfredo Lee, Herbert, James T. , Martinez, Anthony , Tonna, Joseph E. , Nazer, Lama , Heavner, Mojdeh S. , Pender, Erin, Chambers, Lauren, Kenes, Michael T. , Kaufman, David A. , Downey, April, Chaykosky, Darlene, Wolff, Armand, Smith, Michael , Nault, Katie, Sevransky, Jonathan, Gong, Michelle N. , Network, on behalf of the VOLUME-CHASERS Study Group and Society of Critical Care Medicine Discovery, Tonna, Joseph E. , Heavner, Mojdeh S , Khan, Akram , Fazzari, Melissa J. , Kashani, Kianoush , Park, Pauline K. , Duggal, Abhijit , Lanspa, Michael J. , Ammar, Mahmoud A , Hammond, Drayton A , Brown, Brent , Network, on behalf of the VOLUME-CHASERS Study Group and Society of Critical Care Medicine Discovery

Critical Care Medicine | June 30, 2020 | Volume: 48 | Issue: 10 | Pages: 1436-1444

10.1097/ccm.0000000000004429 | PMID 32618697 Get It

Objectives: To characterize the association between the use of physiologic assessment (central venous pressure, pulmonary artery occlusion pressure, stroke volume variation, pulse pressure variation, passive leg raise test, and critical care ultrasound) with fluid and vasopressor administration 24 hours after shock onset and with in-hospital mortality. Design: Multicenter prospective cohort study between September 2017 and February 2018. Settings: Thirty-four hospitals in the United States and Jordan. Patients: Consecutive adult patients requiring admission to the ICU with systolic blood pressure less than or equal to 90 mm Hg, mean arterial blood pressure less than or equal to 65 mm Hg, or need for vasopressor. Interventions: None. Measurement and Main Results: Of 1,639 patients enrolled, 39% had physiologic assessments. Use of physiologic assessment was not associated with cumulative fluid administered within 24 hours of shock onset, after accounting for baseline characteristics, etiology and location of shock, ICU types, Acute Physiology and Chronic Health Evaluation III, and hospital (beta coefficient, 0.04; 95% CI, −0.07 to 0.15). In multivariate analysis, the use of physiologic assessment was associated with a higher likelihood of vasopressor use (adjusted odds ratio, 1.98; 95% CI, 1.45−2.71) and higher 24-hour cumulative vasopressor dosing as norepinephrine equivalent (beta coefficient, 0.37; 95% CI, 0.19−0.55). The use of vasopressor was associated with increased odds of in-hospital mortality (adjusted odds ratio, 1.88; 95% CI, 1.27−2.78). In-hospital mortality was not associated with the use of physiologic assessment (adjusted odds ratio, 0.86; 95% CI, 0.63−1.18). Conclusions: The use of physiologic assessment in the 24 hours after shock onset is associated with increased use of vasopressor but not with fluid administration.
Novel tumor-targeted liposomes comprised of an MDM2 antagonist plus proteasome inhibitor display anti-tumor activity in a xenograft model of bortezomib-resistant Waldenstrom macroglobulinemia
Madamsetty, Vijay Sagar , Paulus, Aneel , Akhtar, Sharoon , Manna, Alak , Rachamalla, Hari Krishnareddy , Chanan‐Khan, Asher , Chanan-Khan, Asher, Madamsetty, Vijay S , Paulus, Aneel , Rachamala, Hari Krishnareddy , Banerjee‬‬‬‬‬‬‬‬‬, Rintu , Mukhopadhyay, Debabrata

Leukemia & Lymphoma | June 19, 2020 | Volume: 61 | Issue: 10 | Pages: 2399-2408

10.1080/10428194.2020.1775204 | PMID 32558607 Get It

Diffuse alveolar hemorrhage due to Legionella pneumophila serogroup 3
Chowdhury, Arnab , Khan, Syed Anjum , Haugh, Susan

Journal of Community Hospital Internal Medicine Perspectives | June 15, 2020 | Volume: 10 | Issue: 3 | Pages: 262-264

10.1080/20009666.2020.1767274 | PMID 32850075 Get It