120 results on '"Khwaja J"'
Search Results
2. P1149: THE EVOLVING STATE OF PLAY IN 1000 PATIENTS WITH WALDENSTRÖM’S MACROGLOBULINAEMIA IN THE UNITED KINGDOM (UK): A REAL-WORLD DATA ANALYSIS FROM THE WMUK RORY MORRISON REGISTRY PROJECT
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Uppal, E., primary, Otamas, A., additional, Khwaja, J., additional, McCarthy, H., additional, Kothari, J., additional, Rismani, A., additional, El-Sharkawi, D., additional, Kyriakou, C., additional, and D’Sa, S., additional
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- 2022
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3. P918: HIGH RESPONSES RATES WITH SINGLE AGENT BELANTAMAB MAFODOTIN IN RELAPSED SYSTEMIC AL AMYLOIDOSIS
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Khwaja, J., primary, Bomsztyk, J., additional, Mahmood, S., additional, Wisniowski, B., additional, Shah, R., additional, Tailor, A., additional, Yong, K., additional, Popat, R., additional, Rabin, N., additional, Kyriakou, C., additional, Sive, J., additional, Worthington, S., additional, Hart, A., additional, Dowling, E., additional, Correia, N., additional, Bygrave, C., additional, Rydzewski, A., additional, Jamroziak, K., additional, and Wechalekar, A., additional
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- 2022
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4. P1150: REAL WORLD DATA ON BORTEZOMIB-BASED THERAPY IN WALDENSTRÖM’S MACROGLOBULINAEMIA: EFFECTIVE EVEN IN MULTIPLY TREATED PATIENTS INCLUDING PRIOR BTK-INHIBITORS
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Uppal, E., primary, Khwaja, J., additional, Rismani, A., additional, Kyriakou, C., additional, and D’Sa, S., additional
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- 2022
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5. P1112: TREATING BING-NEEL SYNDROME USING A TAILORED APPROACH: EXPERIENCE OF A SPECIALIST NEUROHAEMATOLOGY CLINIC
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Khwaja, J., primary, Smyth, D., additional, Rismani, A., additional, Hoskote, C., additional, Kyriakou, C., additional, Lunn, M. P., additional, and D’Sa, S., additional
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- 2022
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6. Mucormycosis: an unwanted companion of diabetes mellitus
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Hasan, Shamimul and Khwaja, J. Kausar
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- 2011
7. Assessing the impact of direct oral anticoagulants on dental practitioners: 145
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Khwaja, J and Khwaja, Z
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- 2016
8. Cuticular Studies in Some Species of Lepidagathis and Barleria
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Ahmad, Khwaja J.
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- 1975
9. High-Dose Methotrexate Is Not Associated with Reduction in CNS Relapse in Patients with Aggressive B-Cell Lymphoma: An International Retrospective Study of 2300 High-Risk Patients.
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Lewis K.L., Jakobsen L.H., Villa D., Bobillo S., Ekstroem Smedby K., Savage K.J., Eyre T.A., Cwynarski K., Caporn P.L., Zyl J.V., Klanova M., Trneny M., Puckrin R., Stewart D.A., Bishton M.J., Fox C.P., Tun A.M., Thanarajasingam G., Djebbari F., Joffe E., Eloranta S., Harrysson S., Sehn L.H., Maliske S.M., Poonsombudlert K., Guo X., Hapgood G., Manos K., Hawkes E., Khwaja J., Minson A., Dickinson M., Ovlisen A.K., Gregory G.P., Gilbertson M., Streit I.T., Scott H.W., Ku M., de Mel S., Yong K.Y., Xin L., Mokoonlall M., Talaulikar D., McVilly N.L., Johnston A., Brunner M.J., Pophali P.A., Maurer M.J., El-Galaly T.C., Cheah C.Y., Lewis K.L., Jakobsen L.H., Villa D., Bobillo S., Ekstroem Smedby K., Savage K.J., Eyre T.A., Cwynarski K., Caporn P.L., Zyl J.V., Klanova M., Trneny M., Puckrin R., Stewart D.A., Bishton M.J., Fox C.P., Tun A.M., Thanarajasingam G., Djebbari F., Joffe E., Eloranta S., Harrysson S., Sehn L.H., Maliske S.M., Poonsombudlert K., Guo X., Hapgood G., Manos K., Hawkes E., Khwaja J., Minson A., Dickinson M., Ovlisen A.K., Gregory G.P., Gilbertson M., Streit I.T., Scott H.W., Ku M., de Mel S., Yong K.Y., Xin L., Mokoonlall M., Talaulikar D., McVilly N.L., Johnston A., Brunner M.J., Pophali P.A., Maurer M.J., El-Galaly T.C., and Cheah C.Y.
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[Formula presented] Introduction Central nervous system relapse (secondary central nervous system lymphoma -SCNS) is an uncommon but devastating complication of aggressive B-cell lymphoma. Patients (Pts) with CNS-IPI 4-6 are at greatest risk (10.2% at 2 years). Intravenous high-dose methotrexate (HD-MTX) is widely used to mitigate SCNS risk but data supporting this practice are limited. Methods We performed a multicentre, retrospective study at 21 sites in Australia, Asia, North America and Europe. Chart or registry review was performed for consecutively diagnosed pts with diffuse large B-cell lymphoma (DLBCL) and CNS-IPI 4-6, high grade B-cell lymphoma (HGBL) with rearrangements of MYC+BCL2 and/or BCL6 and primary breast/testicular DLBCL irrespective of CNS-IPI. Pts were diagnosed between 2000-2020, 18-80 years at diagnosis, and treated with curative intent anti-CD20 based chemo-immunotherapy. Pts with CNS involvement at diagnosis were excluded. HD-MTX was defined as at least one cycle of intravenous MTX at any dose. Time to SCNS was calculated from date of diagnosis (all-pts), and from the end of frontline systemic lymphoma therapy, defined as 6x21 days from diagnosis (complete response (CR-pts)), until SCNS, systemic relapse, death, or censoring, whichever came first. Cumulative risk of SCNS was computed using the Aalen-Johansen estimator treating death and systemic relapses as competing events. Adjusted cumulative risks were obtained by using an inverse probability of treatment weighting approach. The average treatment effect was computed as the difference in adjusted 5-year risk of SCNS. Results - 2300 and 1455 pts were included in the all-pts and CR-pts analyses, respectively. Baseline demographics and details of therapy are summarised in Table 1. Except for a predominance of males, pts <=60 years and pts with ECOG 0-1 in the HD-MTX vs no HD-MTX groups, the demographics and treatments were well balanced. At a median follow up of 5.9 years (range 0.0-19.1) and
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- 2021
10. SINGLE CENTRE EXPERIENCE OF ALLOGENEIC STEM CELL TRANSPLANTATION (HSCT) IN PATIENTS WHO HAVE PREVIOUSLY UNDERGONE AUTOLOGOUS HSCT FOR HAEMATOLOGICAL MALIGNANCY: PH-AB268
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Seymour, F., Gudger, A., Hussein, H., Dyer, P., Patel, J., Khwaja, J., Holder, K., Baker, L., Bratby, L., Lovell, R., Nikolousis, E., Milligan, D., Paneesha, S., and Kishore, B.
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- 2014
11. REDUCED INTENSITY ALLOGENEIC TRANSPLANTS OUTCOMES FOR HIGH RISK AML ARE FAVOURED BY ACQUISITION OF EARLY FULL DONOR T CELL CHIMERISM:SINGLE CENTER EXPERIENCE: PH-P301
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Gudger, A., Hussein, H., Seymour, F., Dyer, P., Khwaja, J., Patel, J., Holder, K., Baker, L., Bratby, L., Kishore, B., Lovell, R., Paneesha, S., Milligan, D., and Nikolousis, E.
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- 2014
12. Liberal or Restrictive Transfusion in High-Risk Patients after Hip Surgery
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Carson, Jeffrey L., Terrin, Michael L., Noveck, Helaine, Sanders, David W., Chaitman, Bernard R., Rhoads, George G., Nemo, George, Dragert, Karen, Beaupre, Lauren, Hildebrand, Kevin, Macaulay, William, Lewis, Courtland, Cook, Donald Richard, Dobbin, Gwendolyn, Zakriya, Khwaja J., Apple, Fred S., Horney, Rebecca A., and Magaziner, Jay
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- 2011
13. Aortic Dissections: New Perspectives and Treatment Paradigms
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Greenberg, R, Khwaja, J, Haulon, S, and Fulton, G
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- 2003
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14. COMPARISON OF OUTCOMES BETWEEN PATIENTS WITH MYC REARRANGED DLBCL AND DOUBLE/ TRIPLE HIT HIGH-GRADE B CELL LYMPHOMA: A PAN-LONDON RETROSPECTIVE REVIEW
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El-Sharkawi, D., primary, Sharma, S., additional, Cook, L., additional, Hanley, B., additional, Johnston, R., additional, Arasaretnam, A., additional, Lazana, I., additional, Greaves, P., additional, Parkinson, A., additional, Peng, Y., additional, Kassam, S., additional, Peacock, V., additional, Kaczmarski, R., additional, Bower, M., additional, Cheung, B., additional, De Lord, C., additional, Cross, M., additional, Vroobel, K., additional, Wotherspoon, A., additional, Aldridge, F., additional, Khwaja, J., additional, Sharma, B., additional, Cwynarski, K., additional, Pettengell, R., additional, Chau, I., additional, Cunningham, D., additional, Naresh, K., additional, and Iyengar, S., additional
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- 2019
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15. Liberal versus restrictive blood transfusion strategy: 3-year survival and cause of death results from the FOCUS randomised controlled trial
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Donald Richard Cook, Jay Magaziner, Bernard R. Chaitman, Helaine Noveck, Jeffrey L. Carson, Frederick E. Sieber, Lauren A Beaupre, Donald R. Hoover, William Macaulay, George G. Rhoads, David W. Sanders, Khwaja J. Zakriya, Barbara Paris, Aleksandra Zagorin, and Lee A. Fleisher
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Male ,Canada ,medicine.medical_specialty ,Blood transfusion ,Anemia ,medicine.medical_treatment ,law.invention ,Hemoglobins ,Randomized controlled trial ,Risk Factors ,law ,Cause of Death ,Humans ,Medicine ,Blood Transfusion ,Single-Blind Method ,Intensive care medicine ,Aged ,Cause of death ,Aged, 80 and over ,Postoperative Care ,Hip fracture ,Intention-to-treat analysis ,Hip Fractures ,business.industry ,Mortality rate ,Hazard ratio ,Transfusion Reaction ,General Medicine ,Middle Aged ,medicine.disease ,Survival Analysis ,United States ,Cardiovascular Diseases ,Emergency medicine ,Female ,business - Abstract
Summary Background Blood transfusion might affect long-term mortality by changing immune function and thus potentially increasing the risk of subsequent infections and cancer recurrence. Compared with a restrictive transfusion strategy, a more liberal strategy could reduce cardiac complications by lowering myocardial damage, thereby reducing future deaths from cardiovascular disease. We aimed to establish the effect of a liberal transfusion strategy on long-term survival compared with a restrictive transfusion strategy. Methods In the randomised controlled FOCUS trial, adult patients aged 50 years and older, with a history of or risk factors for cardiovascular disease, and with postoperative haemoglobin concentrations lower than 100 g/L within 3 days of surgery to repair a hip fracture, were eligible for enrolment. Patients were recruited from 47 participating hospitals in the USA and Canada, and eligible participants were randomly allocated in a 1:1 ratio by a central telephone system to either liberal transfusion in which they received blood transfusion to maintain haemoglobin level at 100 g/L or higher, or restrictive transfusion in which they received blood transfusion when haemoglobin level was lower than 80 g/L or if they had symptoms of anaemia. In this study, we analysed the long-term mortality of patients assigned to the two transfusion strategies, which was a secondary outcome of the FOCUS trial. Long-term mortality was established by linking the study participants to national death registries in the USA and Canada. Treatment assignment was not masked, but investigators who ascertained mortality and cause of death were masked to group assignment. Analyses were by intention to treat. The FOCUS trial is registered with ClinicalTrials.gov, number NCT00071032. Findings Between July 19, 2004, and Feb 28, 2009, 2016 patients were enrolled and randomly assigned to the two treatment groups: 1007 to the liberal transfusion strategy and 1009 to the restrictive transfusion strategy. The median duration of follow-up was 3·1 years (IQR 2·4–4·1 years), during which 841 (42%) patients died. Long-term mortality did not differ significantly between the liberal transfusion strategy (432 deaths) and the restrictive transfusion strategy (409 deaths) (hazard ratio 1·09 [95% CI 0·95–1·25]; p=0·21). Interpretation Liberal blood transfusion did not affect mortality compared with a restrictive transfusion strategy in a high-risk group of elderly patients with underlying cardiovascular disease or risk factors. The underlying causes of death did not differ between the trial groups. These findings do not support hypotheses that blood transfusion leads to long-term immunosuppression that is severe enough to affect long-term mortality rate by more than 20–25% or cause of death. Funding National Heart, Lung, and Blood Institute.
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- 2015
16. Autologous and allogeneic stem‐cell transplantation for transformed Waldenström macroglobulinemia.
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Durot, E., Kanagaratnam, L., Zanwar, S., Kaufman, A., D'Sa, S., Toussaint, E., Roos‐Weil, D., Alcoceba, M., Vos, J. M., Hivert, B., Michallet, A., Talaulikar, D., Kastritis, E., Protin, C., Abeykoon, J. P., Dupuis, J., Leprêtre, S., Khwaja, J., Roussel, X., and Regny, C.
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STEM cell transplantation - Abstract
B Introduction: b The prognosis of histological transformation (HT) in Waldenström macroglobulinemia (WM) is unfavourable despite the use of diffuse large B-cell lymphoma-directed chemo-immunotherapy. B Methods: b Patients who received autoSCT or alloSCT between January 1996 and December 2021 were identified in an international multicenter database of 285 patients with transformed WM. The aim of this study was to evaluate the outcomes after autologous stem-cell transplantation (autoSCT) or allogeneic stem-cell transplantation (alloSCT) in patients with transformed WM. [Extracted from the article]
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- 2023
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17. Delirium Outcomes in a Randomized Trial of Blood Transfusion Thresholds in Hospitalized Older Adults with Hip Fracture
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Erik Barr, Jessica P. Brown, Mary-Rita Blute, Denise Orwig, Khwaja J. Zakriya, Darren M. Roffey, Barbara Paris, J. Richard Hebel, Aleksandra Zagorin, Michael L. Terrin, Edward R. Marcantonio, Jay Magaziner, Jeffrey L. Carson, and Ann L. Gruber-Baldini
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Male ,medicine.medical_specialty ,Randomization ,Blood transfusion ,Anemia ,medicine.medical_treatment ,Neuropsychological Tests ,Article ,law.invention ,Randomized controlled trial ,Risk Factors ,law ,Internal medicine ,medicine ,Humans ,Blood Transfusion ,Aged ,Aged, 80 and over ,Hip fracture ,Hip Fractures ,business.industry ,Delirium ,medicine.disease ,Surgery ,Hospitalization ,Hemoglobinometry ,Female ,Hemoglobin ,Geriatrics and Gerontology ,medicine.symptom ,Erythrocyte Transfusion ,Mental Status Schedule ,Packed red blood cells ,business - Abstract
Objectives: To determine whether a higher blood transfusion threshold would prevent new or worsening delirium symptoms in the hospital after hip fracture surgery. Design: Ancillary study to a randomized clinical trial. Setting: Thirteen hospitals in the United States and Canada. Participants: One hundred thirty-nine individuals hospitalized with hip fracture aged 50 and older (mean age 81.5 ± 9.1) with cardiovascular disease or risk factors and hemoglobin concentrations of less than 10 g/dL within 3 days of surgery recruited in an ancillary study of the Transfusion Trigger Trial for Functional Outcomes in Cardiovascular Patients Undergoing Surgical Hip Fracture Repair. Intervention: Individuals in the liberal treatment group received one unit of packed red blood cells and as much blood as needed to maintain hemoglobin concentrations at greater than 10 g/dL; those in the restrictive treatment group received transfusions if they developed symptoms of anemia or their hemoglobin fell below 8 g/dL. Measurements: Delirium assessments were performed before randomization and up to three times after randomization. The primary outcome was severity of delirium according to the Memorial Delirium Assessment Scale (MDAS). The secondary outcome was the presence or absence of delirium defined according to the Confusion Assessment Method (CAM). Results: The liberal group received a median two units of blood and the restrictive group zero units of blood. Hemoglobin concentration on Day 1 after randomization was 1.4 g/dL higher in the liberal group. Treatment groups did not differ significantly at any time point or over time on MDAS delirium severity (P = .28) or CAM delirium presence (P = .83). Conclusion: Blood transfusion to maintain hemoglobin concentrations greater than 10 g/dL alone is unlikely to influence delirium severity or rate in individuals with hip fracture after surgery with a hemoglobin concentration less than 10 g/dL.
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- 2013
18. CUTICULAR STRIATIONS IN CESTRUM
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Ahmad, Khwaja J.
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- 1962
19. Liberal or Restrictive Transfusion in High-Risk Patients after Hip Surgery
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Jeffrey L, Carson, Michael L, Terrin, Helaine, Noveck, David W, Sanders, Bernard R, Chaitman, George G, Rhoads, George, Nemo, Karen, Dragert, Lauren, Beaupre, Kevin, Hildebrand, William, Macaulay, Courtland, Lewis, Donald Richard, Cook, Gwendolyn, Dobbin, Khwaja J, Zakriya, Fred S, Apple, Rebecca A, Horney, Jay, Magaziner, and Kathleen, Kinnaman
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Male ,medicine.medical_specialty ,Blood transfusion ,Anemia ,medicine.medical_treatment ,Article ,Hemoglobins ,Postoperative Complications ,Risk Factors ,Internal medicine ,medicine ,Humans ,Blood Transfusion ,Mortality ,Aged ,Aged, 80 and over ,Hip surgery ,Hip fracture ,Hip Fractures ,business.industry ,Absolute risk reduction ,Transfusion medicine ,General Medicine ,Odds ratio ,Middle Aged ,medicine.disease ,Confidence interval ,Surgery ,Treatment Outcome ,Wound Infection ,Female ,Erythrocyte Transfusion ,business ,Follow-Up Studies - Abstract
Background The hemoglobin threshold at which postoperative red-cell transfusion is warranted is controversial. We conducted a randomized trial to determine whether a higher threshold for blood transfusion would improve recovery in patients who had undergone surgery for hip fracture. Methods We enrolled 2016 patients who were 50 years of age or older, who had either a history of or risk factors for cardiovascular disease, and whose hemoglobin level was below 10 g per deciliter after hip-fracture surgery. We randomly assigned patients to a liberal transfusion strategy (a hemoglobin threshold of 10 g per deciliter) or a restrictive transfusion strategy (symptoms of anemia or at physician discretion for a hemoglobin level of
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- 2011
20. Evaluating the urgent 2 week head and neck cancer pathway
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Khwaja, Z., primary, Khwaja, J., additional, and Goodger, N., additional
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- 2015
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21. Cuticular studies in some species ofHemigraphis andStrobilanthes
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Ahmad, Khwaja J.
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- 1974
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22. Enhancing Security and Privacy in Healthcare Systems Using a Lightweight RFID Protocol
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Muhammad Ayaz Khan, Subhan Ullah, Tahir Ahmad, Khwaja Jawad, and Attaullah Buriro
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RFID protocol ,Internet of Healthcare Things ,RFID authentication ,IoT security ,Chemical technology ,TP1-1185 - Abstract
Exploiting Radio Frequency Identification (RFID) technology in healthcare systems has become a common practice, as it ensures better patient care and safety. However, these systems are prone to security vulnerabilities that can jeopardize patient privacy and the secure management of patient credentials. This paper aims to advance state-of-the-art approaches by developing more secure and private RFID-based healthcare systems. More specifically, we propose a lightweight RFID protocol that safeguards patients’ privacy in the Internet of Healthcare Things (IoHT) domain by utilizing pseudonyms instead of real IDs, thereby ensuring secure communication between tags and readers. The proposed protocol has undergone rigorous testing and has been proven to be secure against various security attacks. This article provides a comprehensive overview of how RFID technology is used in healthcare systems and benchmarks the challenges faced by these systems. Then, it reviews the existing RFID authentication protocols proposed for IoT-based healthcare systems in terms of their strengths, challenges, and limitations. To overcome the limitations of existing approaches, we proposed a protocol that addresses the anonymity and traceability issues in existing schemes. Furthermore, we demonstrated that our proposed protocol had a lower computational cost than existing protocols and ensured better security. Finally, our proposed lightweight RFID protocol ensured strong security against known attacks and protected patient privacy using pseudonyms instead of real IDs.
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- 2023
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23. Eight-year follow-up on the effect of a hip fracture service on patient care and outcome
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Savyasachi C, Thakkar, Frederick E, Sieber, Khwaja J, Zakriya, and Simon C, Mears
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Aged, 80 and over ,Male ,Patient Care Team ,Hip Fractures ,Incidence ,Length of Stay ,Middle Aged ,Femoral Neck Fractures ,Postoperative Complications ,Treatment Outcome ,Humans ,Female ,Hospital Mortality ,Surgery Department, Hospital ,Aged ,Follow-Up Studies - Abstract
The purpose of this study was to evaluate the 8-year effect of a hip fracture service on time to surgery; duration of surgery; length of stay in acute care, intensive care, and rehabilitation unit; and incidence of postoperative complications and in-hospital mortality. The study group consisted of 50 female patients 65 years of age or older who were treated for hip fractures in 1999 and 50 case-, age-, and American Society of Anesthesiologists score-matched female patients treated in 2006. Group differences were compared via the Student paired t test and χ² analysis (statistical significance, p ≤ .05). The 2006 group had a significantly shorter mean surgical time than did the 1999 group, but time to surgery did not change. The 2006 group showed improvements (but not statistically significant ones) in length of stay in acute care, intensive care, and rehabilitation unit, and in the incidence of complications and in-hospital mortality.
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- 2011
24. General anesthesia occurs frequently in elderly patients during propofol-based sedation and spinal anesthesia
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Simon C. Mears, Khwaja J. Zakriya, Hochang Lee, Frederick E. Sieber, and Allan Gottshalk
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Male ,medicine.medical_specialty ,Sedation ,Conscious Sedation ,Anesthesia, General ,Propofol sedation ,Anesthesia, Spinal ,medicine ,Humans ,University medical ,Prospective Studies ,Propofol ,Aged ,Geriatrics ,Aged, 80 and over ,business.industry ,Hip Fractures ,Spinal anesthesia ,Electroencephalography ,Electroencephalographic monitoring ,Surgery ,Anesthesiology and Pain Medicine ,Anesthesia ,Bispectral index ,Female ,medicine.symptom ,business ,Anesthetics, Intravenous ,medicine.drug - Abstract
To test the hypothesis that sedation in elderly patients is often electrophysiologically equivalent to general anesthesia (GA).Prospective, observational study.Operating room of a university medical center.40 elderly patients (or=65 yrs of age) undergoing hip fracture repair with spinal anesthesia and propofol-based sedation.In the routine practice group (RP; n = 15), propofol sedation was administered per the usual routine of the anesthesiologist. In the targeted sedation group (TS; n = 25), sedation was titrated to an observer's assessment of alertness/sedation (OAA/S) score of 4 (ie, lethargic in response to name called) to 5 (ie, awake and alert).Both patient groups underwent processed electroencephalographic monitoring using bispectral index (BIS) intraoperatively. BIS levels were compared between groups to determine amount of surgical time spent in GA (BISor= 60).In the RP group, subjects spent 32.2% of surgical time at BIS levels consistent with GA. Although averaged BIS values during surgery increased from (mean +/- SD) 71 +/- 16 to 88 +/- 9 (P0.001), GA was still observed during 5% of surgical time in the TS group. Overall, 13 of 15 (87%) RP group patients and 11 of 25 (44%) TS group patients (P0.010) experienced some period of GA.BIS levels consistent with GA occur frequently in elderly patients during propofol-based sedation for spinal anesthesia. Altering routine practice such that sedation is titrated to a targeted clinically-determined sedation level reduces - but does not eliminate - this incidence.
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- 2008
25. A Randomized Clinical Trial of Liberal Versus Restrictive Transfusion Strategy Evaluating Long Term Survival and Cause of Death: Results from the FOCUS Trial
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Helaine Noveck, Donald R. Hoover, Khwaja J. Zakriya, Barbara Paris, Frederick E. Sieber, Bernard R. Chaitman, Donald Richard Cook, Lauren A Beaupre, George G. Rhoads, Jay Magaziner, Lee A. Fleisher, William Macaulay, Jeffrey L. Carson, David W. Sanders, and Aleksandra Zagorin
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medicine.medical_specialty ,Blood transfusion ,business.industry ,Vascular disease ,medicine.medical_treatment ,Immunology ,Hazard ratio ,Cell Biology ,Hematology ,medicine.disease ,Biochemistry ,law.invention ,Coronary artery disease ,Randomized controlled trial ,law ,Interquartile range ,Internal medicine ,Medicine ,business ,Intensive care medicine ,Stroke ,Cause of death - Abstract
[Graphic][1] Introduction There are a large number of randomized clinical trials comparing short-term mortality between liberal and restrictive transfusion strategies. However, transfusion is thought to have long-term consequences related to alteration of immune function. These effects have been hypothesized to increase the risk of subsequent infections and recurrence of cancer. Thus, it is possible that transfusion will increase the risk of long-term mortality by increasing the deaths due to infections and recurrent cancer. Alternatively, more liberal transfusion might reduce cardiac complications by increasing oxygen to vulnerable myocardium and reduce deaths from cardiovascular disease. We hypothesized that liberal transfusion would affect cause specific mortality and might affect all-cause mortality, depending on the predominant impact of transfusion. Methods We performed a secondary analysis of the FOCUS trial that randomly allocated patients undergoing hip fracture repair with postoperative hemoglobin concentrations below 10 g/dL within 3 days of surgery. Patients were eligible for the trial if they had underlying cardiovascular disease (coronary artery disease, congestive heart failure, stroke, peripheral vascular disease) or cardiovascular risk factors (diabetes mellitus, hypertension, hyperlipidemia, tobacco use, or renal insufficiency). We randomly allocated patients to liberal transfusion where patients received blood transfusion to maintain hemoglobin 10 g/dL or greater, or restrictive transfusion where patients received blood transfusion when hemoglobin level was less than 8 g/dL or for symptoms. Long-term mortality was determined by linking the study subjects to national death registries in US and Canada. We compared survival time between the two transfusion treatment strategies using the unadjusted log-rank test and Cox proportional hazard models. The underlying cause of death was identified by the national death registries and grouped into seven categories: cardiovascular disease, cancer, infection, stroke, dementia, pulmonary, and other. Results There were 1007 subjects randomly allocated to the liberal transfusion strategy and 1009 to the restrictive transfusion strategy. The baseline clinical status was similar between the two groups; mean age of the study population was 81.6 years (range, 51 to 103). The liberal transfusion group were transfused a total of 1866 units and restrictive transfusion group 652 units. We established long-term survival for 2002 (99.3%) of the study population. The median follow-up was 3.1 years (interquartile range, 2.4 to 4.1 years) and there were 841 (42.0%) deaths. There was no difference in the long-term mortality between the liberal transfusion strategy (N=432 deaths) and restrictive transfusion strategy (N= 409 deaths); hazard ratio =1.09; 95% confidence interval 0.95 to 1.25 (Figure). The results were consistent across all subgroups including demographics and multiple co-morbidities. There was also no difference in the underlying cause of death between the transfusion strategies (p=0.99) (Table); Cardiovascular disease (liberal-32.6%, restrictive-33.5%), Cancer (liberal-12.5%, restrictive-12.0%), Infection (liberal-9.5%, restrictive 9.0%). Conclusions Liberal transfusion of 10 g/dL did not reduce or increase long-term mortality compared to restrictive transfusion strategy using an 8 g/dL threshold or symptoms in a high risk group of elderly patients with underlying cardiovascular disease or risk factors. The underlying causes of death were similar in both arms of the trial and liberal transfusion did not appear to increase risk of death from infection or cancer or reduce the risk of death from cardiovascular disease. These results do not support the hypotheses that transfusion leads to long-term immunosuppression that is severe enough to influence mortality or cause of death. Our findings suggest that clinicians should primarily consider short-term effects of transfusion when deciding whom to transfuse. | | | | | | | || | | | Total N (%) | Liberal N (%) | Restrictive N (%) | | | | Cardiovascular Disease | 278 (33.1) | 141 (32.6) | 137 (33.5) | | | | Cancer | 103 (12.2) | 54 (12.5) | 49 (12.0) | | | | Infection | 78 (9.3) | 41 (9.5) | 37 (9.0) | | | | Stroke | 57 (6.8) | 27 (6.3) | 30 (7.3) | | | | Dementia | 108 (12.8) | 56 (13.0) | 52 (12.7) | | | | Pulmonary | 58 (6.9) | 29 (6.7) | 29 (7.1) | | | | Other | 147 (17.5) | 79 (18.3) | 68 (16.6) | | | | Unknown | 12 (1.4) | 5 (1.2) | 7 (1.7) | | | | Totals | 841 | 432 | 409 | | Table ![Figure 1][2] Figure 1 Disclosures Magaziner: Ammonett : Consultancy; Sanofi: Consultancy; Regeneron: Consultancy; Novartis: Consultancy; Eli Lilly: Consultancy; American Orthopedic Association: Consultancy. [1]: /embed/inline-graphic-2.gif [2]: pending:yes
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- 2014
26. Recovery room delirium predicts postoperative delirium after hip-fracture repair
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Punita T. Sharma, Khwaja J. Zakriya, Jian Hang, Ronald W. Pauldine, Frederick E. Sieber, Kevin B. Gerold, and Timothy H. Smith
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Male ,medicine.medical_specialty ,behavioral disciplines and activities ,Postoperative Complications ,Organic mental disorders ,mental disorders ,medicine ,Humans ,Postoperative delirium ,Hip fracture repair ,Prospective cohort study ,Aged ,Aged, 80 and over ,business.industry ,Hip Fractures ,Delirium ,Middle Aged ,medicine.disease ,nervous system diseases ,Surgery ,Anesthesiology and Pain Medicine ,Anesthesia ,Female ,medicine.symptom ,business ,Recovery Room - Abstract
In this study, we sought to determine the incidence of recovery room delirium in elderly patients having hip-fracture repair under general anesthesia and to discover whether recovery room delirium is associated with continuing postoperative delirium. In this prospective study, patients undergoing hip-fracture repair were anesthetized using a standardized protocol. In addition, postoperative pain management was standardized in both the postoperative anesthesia care unit and in the hospital ward. The presence of delirium was determined using the confusion assessment method (CAM) score. Recovery room delirium was assessed by obtaining a CAM score at 60 min after discontinuation of isoflurane. Postoperative delirium was assessed by obtaining a daily CAM score during the postoperative in-hospital recovery period. Fifty patients consented to the study and 47 patients were included in the analysis (surgery cancelled postinduction n = 1; nonadherence to protocol n = 2). Average patient age was 77 +/- 1 (mean +/- SE) yr (range, 56-98 yr). Seventy-seven percent of the study patients were ASA class III or more. The prevalence of recovery room delirium was 45%. The prevalence of postoperative delirium was 36%. Recovery room delirium predicted postoperative delirium (P0.001, Fisher's exact test) with a sensitivity of 100% and a specificity of 85%. Analgesic doses administered in the postoperative anesthesia care unit and ward were similar in patients with or without postoperative delirium. Results of this study show that recovery room delirium is a strong predictor of postoperative delirium.In patients undergoing hip-fracture repair, recovery room delirium is a strong predictor of postoperative delirium when using a standardized protocol for general anesthesia and postoperative pain management.
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- 2005
27. Brief postoperative delirium in hip fracture patients affects functional outcome at three months
- Author
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James F. Wenz, Colleen Christmas, Shawn C. Franckowiak, Khwaja J. Zakriya, and Frederick E. Sieber
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Male ,congenital, hereditary, and neonatal diseases and abnormalities ,medicine.medical_specialty ,Activities of daily living ,Postoperative Complications ,Organic mental disorders ,Activities of Daily Living ,medicine ,Humans ,Postoperative delirium ,Prospective Studies ,Prospective cohort study ,Aged ,Aged, 80 and over ,Hip fracture ,Chi-Square Distribution ,business.industry ,Hip Fractures ,Delirium ,Recovery of Function ,Length of Stay ,medicine.disease ,Surgery ,Family member ,Anesthesiology and Pain Medicine ,Treatment Outcome ,Anesthesia ,Female ,medicine.symptom ,business ,Chi-squared distribution ,Follow-Up Studies - Abstract
UNLABELLED: It is unclear how brief postoperative delirium (DEL) affects functional outcomes. In this study, we sought to determine if patients with brief postoperative DEL (
- Published
- 2004
28. Preoperative factors associated with postoperative change in confusion assessment method score in hip fracture patients
- Author
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Shawn C. Franckowiak, Colleen Christmas, Ross Anderson, Khwaja J. Zakriya, James F. Wenz, and Frederick E. Sieber
- Subjects
Male ,medicine.medical_specialty ,Neuropsychological Tests ,behavioral disciplines and activities ,Preoperative care ,Leukocyte Count ,Postoperative Complications ,Organic mental disorders ,Risk Factors ,mental disorders ,Preoperative Care ,medicine ,Odds Ratio ,Humans ,Orthopedic Procedures ,Risk factor ,Confusion ,Aged ,Surgical repair ,Aged, 80 and over ,Hip fracture ,Analysis of Variance ,business.industry ,Hip Fractures ,Sodium ,Age Factors ,Odds ratio ,Middle Aged ,medicine.disease ,nervous system diseases ,Surgery ,Anesthesiology and Pain Medicine ,Logistic Models ,Anesthesia ,Orthopedic surgery ,Delirium ,Female ,medicine.symptom ,business - Abstract
Postoperative delirium is a major problem in elderly patients undergoing surgical repair of hip fracture. It is imperative to identify potentially treatable preoperative factors associated with the onset of postoperative delirium to optimize outcome. We sought to determine what preoperative variables are associated with postoperative delirium in geriatric patients undergoing surgical repair of hip fracture. In a prospective, IRB-approved study, patients admitted to the geriatric hip fracture service were examined daily in the hospital for the occurrence of postoperative delirium. All patients with a preoperative diagnosis of dementia or delirium were eliminated. A positive confusion assessment method score ([+]CAM) was used to determine the presence of postoperative delirium during the acute hospital stay. To determine the association between preoperative variables (demographics, laboratory values, and comorbidities) and postoperative (+)CAM scores, chi(2) and logistic regression analysis were performed with calculation for the odds ratios (OR). One-hundred-sixty-eight patients (72% women) were included in the analysis. Twenty-eight percent (n = 47) of patients had a (+)CAM score. Three variables were significant predictors of a (+)CAM score: (a) normal white blood cell count (OR, 2.2), (b) abnormal serum sodium (OR, 2.4); and (c) ASA physical statusII (OR, 11.3). The results suggest that preoperative medical conditions (abnormal serum sodium and ASA physical statusII) and an inability to mount a stress response (normal white blood cell count) may influence the patient's postoperative mental status. In particular, two of the risk factors we identified may be amenable to therapy and are abnormal serum sodium and lack of an increase in white blood cell count during the stress of trauma and surgery.This prospective study investigated preoperative variables that are predictive of postoperative delirium in geriatric patients undergoing surgical repair of hip fracture. The results suggest that the patient's preoperative medical condition and inability to mount a stress response influence postoperative delirium.
- Published
- 2002
29. Reply
- Author
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Frederick E. Sieber, Allan Gottschalk, Khwaja J. Zakriya, Simon C. Mears, and Hochang Lee
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Anesthesiology and Pain Medicine - Published
- 2011
30. Reply
- Author
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Sieber, Frederick E., primary, Gottschalk, Allan, additional, Zakriya, Khwaja J., additional, Mears, Simon C., additional, and Lee, Hochang, additional
- Published
- 2011
- Full Text
- View/download PDF
31. General anesthesia occurs frequently in elderly patients during propofol-based sedation and spinal anesthesia
- Author
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Sieber, Frederick E., primary, Gottshalk, Allan, additional, Zakriya, Khwaja J., additional, Mears, Simon C., additional, and Lee, Hochang, additional
- Published
- 2010
- Full Text
- View/download PDF
32. Recovery Room Delirium Predicts Postoperative Delirium After Hip-Fracture Repair
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Sharma, Punita T., primary, Sieber, Frederick E., additional, Zakriya, Khwaja J., additional, Pauldine, Ronald W., additional, Gerold, Kevin B., additional, Hang, Jian, additional, and Smith, Timothy H., additional
- Published
- 2005
- Full Text
- View/download PDF
33. Postoperative Change in Confusion Assessment Method (CAM) Score in Hip Fracture Patients Does Not Affect Outcome at 3 Months
- Author
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Zakriya, Khwaja J., primary, Christmas, Colleen, additional, Wenz, James F., additional, Franckowiak, Shawn, additional, and Sieber, Frederick E., additional
- Published
- 2002
- Full Text
- View/download PDF
34. Preoperative Factors Associated with Postoperative Change in Confusion Assessment Method Score in Hip Fracture Patients
- Author
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Zakriya, Khwaja J., primary, Christmas, Colleen, additional, Wenz, James F., additional, Franckowiak, Shawn, additional, Anderson, Ross, additional, and Sieber, Frederick E., additional
- Published
- 2002
- Full Text
- View/download PDF
35. Postoperative Change in Confusion Assessment Method (CAM) Score in Hip Fracture Patients Does Not Affect Outcome at 3 Months
- Author
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Khwaja J. Zakriya, Colleen Christmas, James F. Wenz, Frederick E. Sieber, and Shawn C. Franckowiak
- Subjects
Hip fracture ,medicine.medical_specialty ,Anesthesiology and Pain Medicine ,business.industry ,Assessment methods ,medicine ,Physical therapy ,medicine.symptom ,Affect (psychology) ,medicine.disease ,business ,Outcome (game theory) ,Confusion - Published
- 2002
36. Cuticular studies in some Nelsonioideae (Acanthaceae).
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AHMAD, KHWAJA J.
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- 1974
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37. CUTICULAR STUDIES IN SOLANACEAE.
- Author
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AHMAD, KHWAJA J.
- Published
- 1964
38. Cuticular studies in some Nelsonioideae (Acanthaceae)*
- Author
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Khwaja J. Ahmad
- Subjects
Subfamily ,biology ,Epidermis (botany) ,Scrophulariaceae ,Cuticle ,Botany ,Acanthaceae ,Nelsonioideae ,Plant Science ,Elytraria acaulis ,biology.organism_classification ,Staurogyne ,Ecology, Evolution, Behavior and Systematics - Abstract
The foliar epidermis and cuticle of Staurogyne longifolia (Nees) Kuntze, Elytraria acaulis (L.f.) Lindau var. acaulis, E. acaulis var. lyrata (Nees) Bremek. and Nelsonia campestris R.Br, have been investigated, revealing broad similarities with those of the rest of the Acanthaceae; the presence of diacytic stomata in the Nelsonioideae is evidence of its affinity with the Acanthaceae in general-, while the presence of panduriform glandular hairs and the absence of the cystoliths in Nelsonioideae indicate its particular affinity with the Thunbergioideae. Substantial evidence is provided to support the retention of Nelsonioideae as a subfamily of the Acanthaceae, rather than its transfer to the Scrophulariaceae.
- Published
- 1974
39. Cuticular studies in some species ofHemigraphis andStrobilanthes
- Author
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Khwaja J. Ahmad
- Subjects
biology ,Botany ,Acanthaceae ,Zoology ,Tribe (biology) ,biology.organism_classification - Abstract
Cuticular investigations have been carried out in three species ofHemigraphis and nine ofStrobilanthes. The two genera belonging to the family Acanthaceae are generally placed together within the same tribe by taxonomists.Hemigraphis andStrobilanthes show broadly similar epidermal characters though there are significant differences also. On the basis of the present study, the placement of these genera in two different sub-tribes but under the same tribe appears to be justified. The three species ofHemigraphis show more or less uniform epiderma1 characters butH. colorata andH. hirta are more close to each other than toH. alternata.
- Published
- 1974
40. Epidermal studies in Fittonia Coemans (Acanthaceae)
- Author
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Khwaja J. Ahmad
- Subjects
biology ,Epidermis (botany) ,Genus ,Botany ,Acanthaceae ,Plant Science ,Acanthoideae ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics ,Fittonia - Abstract
Foliar epidermal features of three known taxa of Fittonia Coemans belonging to the family Acanthaceae have been studied. The genus shows typical features of Acanthaceae (sub-family Acanthoideae) like diacytic stomata, sub-sessile glandular hairs with globular head and the presence of cystoliths. While all the three taxa show broadly similar epidermal features, there are distinct variations which help in distinguishing them from one another. The presence of ocelli (lens cells) on the upper epidermis of F. verschaffeltii var. pearcei is significant and indicates that the latter might be a distinct species. Die Blattepidermis-Merkmale von drei bekannten Taxa der Gattung Fittonia Coemans (Acanthaceae) wurden untersucht. Die Gattung zeigt typische Merkmale der Acanthaceae (Subfam. Acanthoideae) wie diazytische Stomata, fast ungestielte drusige Haare mit kugeligem Kopf und das Vorhandensein von Cystolithen. Obwohl alle drei Taxa deutlich einfache Epidermismerkmale aufweisen, gibt es bestimmte Abweichungen, durch die sich unterscheiden. Das Vorkommen von sehr kleinen linsenartigen Derivaten auf der oberen Epidermis bei F. verschaffeltii var. pearcei ist signifikant und zeigt an, das die Varietat als Art einzustufen ist.
- Published
- 1978
41. PHARMACOGNOSY OF THE LEAF AND ROOT OFBARRINGTONIA ACUTANGULA,GAERTN
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Khwaja J. Ahmad
- Subjects
Pharmacology ,Complementary and alternative medicine ,Barringtonia acutangula ,biology ,Traditional medicine ,Organic Chemistry ,Drug Discovery ,Pharmaceutical Science ,Molecular Medicine ,Pharmacognosy ,biology.organism_classification ,Analytical Chemistry - Published
- 1969
42. CUTICULAR STUDIES IN SOLANACEAE
- Author
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Khwaja J. Ahmad
- Subjects
Epidermis (botany) ,Guard cell ,fungi ,Botany ,Plant Science ,Biology ,biology.organism_classification ,Trichome ,Solanaceae ,Cuticle (hair) - Abstract
Foliar cuticle and epidermis, including trichomes, of 26 species (17 genera) of Solanaceae from India and South America have been studied. Most of the species are amphistomatic and possess either 'cruciferous' stomata or both 'cruciferous' and 'ranunculaceous' types intermingled; only a few species show exclusively the ranunculaceous type of stomata. Several types of epidermal hairs (both glandular and non-glandular) are found and these appear to be of great diagnostic value. This fact is particularly important as many species are of pharmacognostic interest. Some interesting characters such as 'cuticular striations', 'single guard cells', and 'degenerated stomatal cells' have also been recorded in a number of species. Further subdivisions of the family have been evaluated in the light of the present investigations, and regrouping of different genera under various tribes has been suggested.
- Published
- 1964
43. PHARMACOGNOSY OF THE LEAF AND ROOT OF BARRINGTONIA ACUTANGULA, GAERTN.
- Author
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Ahmad, Khwaja J.
- Published
- 1969
- Full Text
- View/download PDF
44. Epidermal hairs of Acanthaceae
- Author
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Ahmad, Khwaja J. and Naturalis journals & series
- Subjects
integumentary system - Abstract
Structure and distribution of the foliar epidermal hairs of 109 species and two varieties belonging to 39 genera of the family Acanthaceae have been studied. Both glandular and non-glandular epidermal hairs have been recorded in the investigated taxa. The glandular hairs may be subsessile or long-stalked. The subsessile glandular hairs are of two types: i) Glandular head panduriform, 2-celled, and ii) Glandular head globular or disc-shaped, 2—8- or more-celled. Subfamilies Nelsonioideae and Thunbergioideae are characteri«*H hv thfi nanduriform hairs, while Mendoncioideae and Acanthoideae have glandular hairs with a globular head. Long-stalked glandular hairs are present only in nine species. Non-glandular hairs are also widely distributed in the family; they are present in all but ten species. They may be unicellular, or multicellular uniseriate; rarely they are branched. Though the non-glandular hairs are of diagnostic importance at species level only, in some genera like Barleria, Ruttya, , and Äphelandra, they are quite characteristic. The present study does not support Bremekamp's (1965) delimitation of the family Acanthaceae, involving the transfer of Lindau's (1895) subfamily Nelsonioideae to Scrophulariaceae, and the raising of his subfamilies Thunbergioideae and Mendoncioideae to the rank of independent families. Instead, the retention of Nelsonioideae, Thunbergioideae, Mendoncioideae, and Acanthoideae within the family Acanthaceae is favoured.
- Published
- 1978
45. Epidermal hairs of Acanthaceae
- Author
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Ahmad, (Khwaja J.) and Ahmad, (Khwaja J.)
- Abstract
Structure and distribution of the foliar epidermal hairs of 109 species and two varieties belonging to 39 genera of the family Acanthaceae have been studied. Both glandular and non-glandular epidermal hairs have been recorded in the investigated taxa. The glandular hairs may be subsessile or long-stalked. The subsessile glandular hairs are of two types: i) Glandular head panduriform, 2-celled, and ii) Glandular head globular or disc-shaped, 2—8- or more-celled. Subfamilies Nelsonioideae and Thunbergioideae are characteri«*H hv thfi nanduriform hairs, while Mendoncioideae and Acanthoideae have glandular hairs with a globular head. Long-stalked glandular hairs are present only in nine species. Non-glandular hairs are also widely distributed in the family; they are present in all but ten species. They may be unicellular, or multicellular uniseriate; rarely they are branched. Though the non-glandular hairs are of diagnostic importance at species level only, in some genera like Barleria, Ruttya, , and Äphelandra, they are quite characteristic. The present study does not support Bremekamp's (1965) delimitation of the family Acanthaceae, involving the transfer of Lindau's (1895) subfamily Nelsonioideae to Scrophulariaceae, and the raising of his subfamilies Thunbergioideae and Mendoncioideae to the rank of independent families. Instead, the retention of Nelsonioideae, Thunbergioideae, Mendoncioideae, and Acanthoideae within the family Acanthaceae is favoured.
- Published
- 1978
46. Epidermal studies inFittonia Coemans (Acanthaceae)
- Author
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Ahmad, Khwaja J., primary
- Published
- 1978
- Full Text
- View/download PDF
47. Epidermal studies in Fittonia Coemans (Acanthaceae)
- Author
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Ahmad, Khwaja J., primary
- Published
- 1978
- Full Text
- View/download PDF
48. Late gadolinium enhancement cardiovascular magnetic resonance for sudden cardiac death risk stratification in hypertrophic cardiomyopathy
- Author
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Ismail Tevfik F, Jabbour Andrew, Gulati Ankur, Mallorie Amy, Raza Sadaf, Cowling Thomas E, Das Bibek, Khwaja Jahanzaib, Wage Rick, Moon James, Varnava Amanda, Shakespeare Carl, Elliott Perry, OHanlon Rory, Pennell Dudley J, and Prasad Sanjay K
- Subjects
Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Published
- 2013
- Full Text
- View/download PDF
49. Application of artificial neural networks for understanding and diagnosing the state of mastitis in dairy cattle
- Author
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Hassan, Khwaja J.
- Subjects
- principal component analysis, mastitis, minor and major bacterial pathogens, somatic cell count, electrical resistance, unsupervised neural networks, supervised neural networks, Marsden::300000 Agricultural, Veterinary and Environmental Sciences, Marsden::280212 Neural networks, genetic algorithms and fuzzy logic
- Abstract
Bovine mastitis adversely affects the dairy industry around the world. This disease is caused by a diverse range of bacteria, broadly categorised as minor and major pathogens. In-line tools that help identify these bacterial groupings in the early stages of the disease are advantageous as timely decisions could be made before the cow develops any clinical symptoms. The first objective of this research was to identify the most informative milk parameters for the detection of minor and major bacterial pathogens. The second objective of this research was to evaluate the potential of supervised and unsupervised neural network learning paradigms for the detection of minor infected and major infected quarters in the early stages of the disease. The third objective was to evaluate the effects of different proportions of infected to non-infected cases in the training data set on the correct classification rate of the supervised neural network models as there are proportionately more non-infected cases in a herd than infected cases. A database developed at Lincoln University was used to achieve the research objectives. Starting at calving, quarter milk samples were collected weekly from 112 cows for a period of fourteen weeks, resulting in 4852 samples with complete records for somatic cell count (SCC), electrical resistance, protein percentage, fat percentage, and bacteriological status. To account for the effects of the stage of lactation on milk parameters with respect to days in milking, data was divided into three days in milk ranges. In addition, cow variation was accounted for by the sire family from which the cow originated and the lactation number of each cow. Data was pre-processed before the application of advanced analytical techniques. Somatic cell score (SCS) and electrical resistance index were derived from somatic cell count and electrical resistance, respectively. After pre-processing, the data was divided into training and validation sets for the unsupervised neural network modelling experiment and, for the supervised neural network modelling experiments, the data was divided into training, calibration and validation sets. Prior to any modelling experiments, the data was analysed using statistical and multivariate visualisation techniques. Correlations (p
- Published
- 2007
50. Prevention and management of secondary central nervous system lymphoma
- Author
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Sabela Bobillo, Jahanzaib Khwaja, Andrés J.M. Ferreri, Kate Cwynarski, Institut Català de la Salut, [Bobillo S] Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. Servei d’Hematologia i Hemoteràpia, Vall d’Hebron Hospital Universitari, Barcelona, Spain. [Khwaja J, Cwynarski K] Department of Haematology, University College London Hospitals, London, UK. [Ferreri AJM] Lymphoma Unit, Department of Onco-Hematology, IRCCS San Raffaele Scientific Institute, Milan, Italy, and Vall d'Hebron Barcelona Hospital Campus
- Subjects
Neoplasms::Neoplasms by Site::Nervous System Neoplasms::Central Nervous System Neoplasms [DISEASES] ,Other subheadings::Other subheadings::/prevention & control [Other subheadings] ,Otros calificadores::Otros calificadores::/prevención & control [Otros calificadores] ,neoplasias::neoplasias por localización::neoplasias del sistema nervioso::neoplasias del sistema nervioso central [ENFERMEDADES] ,Cèl·lules B - Tumors - Prevenció ,Hematology ,Hemic and Lymphatic Diseases::Lymphatic Diseases::Lymphoproliferative Disorders::Lymphoma [DISEASES] ,Sistema nerviós central - Malalties - Prevenció ,enfermedades hematológicas y linfáticas::enfermedades linfáticas::trastornos linfoproliferativos::linfoma [ENFERMEDADES] - Abstract
Prevention; Lymphoma Prevenció; Limfoma Prevención; Linfoma Secondary central nervous system (CNS) lymphoma (SCNSL) is defined by the involvement of the CNS, either at the time of initial diagnosis of systemic lymphoma or in the setting of relapse, and can be either isolated or with synchronous systemic disease. The risk of CNS involvement in patients with diffuse large B-cell lymphoma is approximately 5%; however, certain clinical and biological features have been associated with a risk of up to 15%. There has been growing interest in improving the definition of patients at increased risk of CNS relapse, as well as identifying effective prophylactic strategies to prevent it. SCNSL often occurs within months of the initial diagnosis of lymphoma, suggesting the presence of occult disease at diagnosis in many cases. The differing presentations of SCNSL create the therapeutic challenge of controlling both the systemic disease and the CNS disease, which uniquely requires agents that penetrate the blood-brain barrier. Outcomes are generally poor with a median overall survival of approximately 6 months in retrospective series, particularly in those patients presenting with SCNSL after prior therapy. Prospective studies of intensive chemotherapy regimens containing high-dose methotrexate, followed by hematopoietic stem cell transplantation have shown the most favorable outcomes, especially for patients receiving thiotepa-based conditioning regimens. However, a proportion of patients will not respond to induction therapies or will subsequently relapse, indicating the need for more effective treatment strategies. In this review we focus on the identification of high-risk patients, prophylactic strategies and recent treatment approaches for SCNSL. The incorporation of novel agents in immunochemotherapy deserves further study in prospective trials.
- Published
- 2023
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