50 results on '"Zahid, Amin"'
Search Results
2. Maximum modulus zero-suffix method for finding an optimal solution to fuzzy transportation problems
- Author
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Roy, Haridas, Pathak, Govind, Kumar, Rakesh, and Malik, Zahid Amin
- Published
- 2024
- Full Text
- View/download PDF
3. Scavenger receptor B1 facilitates the endocytosis of Escherichia coli via TLR4 signaling in mammary gland infection
- Author
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Taban, Qamar, Ahmad, Syed Mudasir, Mumtaz, Peerzada Tajamul, Bhat, Basharat, Haq, Ehtishamul, Magray, Suhail, Saleem, Sahar, Shabir, Nadeem, Muhee, Amatul, Kashoo, Zahid Amin, Zargar, Mahrukh Hameed, Malik, Abrar A., Ganai, Nazir A., and Shah, Riaz A.
- Published
- 2023
- Full Text
- View/download PDF
4. Dynamic antibody response in SARS-CoV-2 infected patients and COVID-19 vaccine recipients alongside vaccine effectiveness in comorbid and multimorbid groups
- Author
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Depro Das, Fahmida Khanam Raha, Khondekar Mustaq Adnan, Md Rubayet Siraj, Mariam Jamila Shapla, Farzana Shumy, Md Emdadul Haque, Monwar Hasanat Khan, Susmita Sanyal, Md Ismail Hosen, AHM Nurun Nabi, Mousumi Sanyal, Sajib Chakraborty, and Md Zahid Amin
- Subjects
IgG ,Antibody response ,SARS-CoV-2 ,COVID-19 ,Multimorbidity ,Kidney disease ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Objectives: Underlying medical conditions are critical risk factors for COVID-19 susceptibility and its rapid clinical manifestation. Therefore, the preexisting burden of non-communicable diseases (NCDs) makes the preparedness for COVID-19 more challenging for low- and middle-income countries (LMICs). These countries have relied on vaccination campaigns as an effective measure to tackle COVID-19. In this study, we investigated the impact of comorbidities on humoral antibody responses against the specific receptor-binding domain (RBD) of SARS-CoV2. Methods: A total of 1005 patients were selected for the SARS-CoV-2 specific immunoglobulin G (IgG1, IgG2, IgG3, and IgG4 subclasses) and total antibody (TAb) tests (IgG and IgM), of which 912 serum samples were ultimately selected based on the specimen cutoff analyte value. Patients with multimorbidity (N = 60) were recruited for follow-up studies from the initial cohort, and their immune response (IgG and TAb) was measured at multiple time points after the second dose of vaccination. Siemens Dimension Vista SARS-CoV-2 IgG (CV2G) and SARS-CoV-2 TAb assay (CV2T) were used to carry out the serology test. Results: Out of a total of 912 participants, vaccinated individuals (N = 711) had detectable antibody responses up to 7–8 months. The synergistic effect of natural infection and vaccine response was also studied. Participants with breakthrough infections (N = 49) mounted a greater antibody response compared to individuals with normal vaccination response (N = 397) and those who were naturally infected before receiving the second dose of vaccine (N = 132). Investigation of the impact of comorbidities revealed that diabetes mellitus (DM) (N = 117) and kidney disease (N = 50) had a significant negative impact on the decline of the humoral antibody response against SARS-CoV-2. IgG and TAb declined more rapidly in diabetic and kidney disease patients compared to the other four comorbid groups. Follow-up studies demonstrated that antibody response rapidly declined within 4 months after receiving the second dose. Conclusion: The generalized immunization schedule for COVID-19 needs to be adjusted for high-risk comorbid groups, and a booster dose must be administered early within 4 months after receiving the second dose.
- Published
- 2023
- Full Text
- View/download PDF
5. Comparative RNA-Seq analysis reveals insights in Salmonella disease resistance of chicken; and database development as resource for gene expression in poultry
- Author
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Dar, Mashooq Ahmad, Ahmad, Syed Mudasir, Bhat, Basharat A., Dar, Tanveer Ali, Haq, Zulfqar ul, Wani, Basharat A., Shabir, Nadeem, Kashoo, Zahid Amin, Shah, Riaz Ahmad, Ganai, Nazir A., and Heidari, Mohammad
- Published
- 2022
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- View/download PDF
6. Risk Score Model for Liver Transplant Outcomes after Preoperative Locoregional Therapy for Hepatocellular Carcinoma
- Author
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Bhatti, Abu Bakar Hafeez, Hassan, Muhammad, Rana, Atif, Khan, Nusrat Yar, Khan, Zahid Amin, and Zia, Haseeb Haider
- Published
- 2022
- Full Text
- View/download PDF
7. Application of fuzzy goal programming approach in the real-life problem of agriculture sector
- Author
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Zahid Amin Malik, Rakesh Kumar, Govind Pathak, Haridas Roy, and Mohd Azhar-Ud-Din Malik
- Subjects
Fuzzy goal programming ,Mathematical programming ,Conflicting objectives ,Agriculture sector ,Crop production ,Apple production ,Production management. Operations management ,TS155-194 - Abstract
Goal: The present study aimed to demonstrate the applicability of the fuzzy goal programming to frame the decision support system for the decision-makers to deal with the real-life problem of the agriculture sector namely the apple cultivation planning problem and to obtain an optimum solution. Design / Methodology / Approach: The proposed method occurred within the apple-producing sector in the Kashmir valley of India and included the collection of data through interviews and surveys with various farmers. Also, the results were drawn with the help of LINGO 18.0. Results: The current finding implies that all of the desired objectives have been met, as well as an optimal solution. The proposed model offers a significant approach for designing plans to determine various agricultural activities in a fuzzy decision environment. Finally, the current study conducts a case study in the apple cultivation sector to obtain various competing objectives. Sensitivity analysis was also performed on its preferential weight parameters. Limitations of the investigation: It should be noted that the parameters related to production cost, transportation cost, and cost of material may change over the years. The selling price may also vary according to the quality of apples and over the years. Because of natural factors, the annual production of apples may also vary. Practical implication: The current study shows that using fuzzy goal programming techniques in an apple production process has a huge potential to increase farmers' income. It can be concluded that the current study can help decision-makers to deal with real-life planning issues in the agricultural sector. Future research can also take advantage of other initiation strategies. Originality/Value: The study looks at the applicability of the fuzzy goal programming paradigm in a new field of apple production in the agriculture sector. According to our knowledge, this is the first time the optimization model has been used in the apple cultivation sector.
- Published
- 2023
- Full Text
- View/download PDF
8. Expression of lncRNAs in response to bacterial infections of goat mammary epithelial cells reveals insights into mammary gland diseases
- Author
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Mumtaz, Peerzada Tajamul, Taban, Qamar, Bhat, Basharat, Ahmad, Syed Mudasir, Dar, Mashooq Ahmad, Kashoo, Zahid Amin, Ganie, Nazir A., and Shah, Riaz Ahmad
- Published
- 2022
- Full Text
- View/download PDF
9. Application of Goal Programming in the Textile Apparel Industry to Resolve Production Planning Problems - a Meta-goal Programming Technique Using Weights
- Author
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Zahid Amin Malik, Rakesh Kumar, Govind Pathak, and Haridas Roy
- Subjects
Management. Industrial management ,HD28-70 ,Economic growth, development, planning ,HD72-88 - Abstract
In the present business environment, rapidly developing technology and the competitive world market pose challenges to the available assets of industries. Hence, industries need to allocate and use available assets at the optimum level. Thus, industrialists must create a good decision plan to guide their performance in the production sector. As a result, the present study applies the Meta-Goal Programming technique to attain several objectives simultaneously in the textile production sector. The importance of this study lies in pursuing different objectives simultaneously, which has been almost ignored till now. The production scheduling problem in a textile firm is used to illustrate the practicability and mathematical validity of the suggested approach. Analysis of the results obtained demonstrates that the solution met all three meta-goals with some original goals being met partially. An analysis of the sensitivity of the approach to the weights of the preferences was conducted. (original abstract)
- Published
- 2022
10. Living donor liver transplantation for advanced hepatocellular carcinoma including macrovascular invasion
- Author
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Bhatti, Abu Bakar Hafeez, Naqvi, Wajih, Khan, Nusrat Yar, Zia, Haseeb Haider, Dar, Faisal Saud, Khan, Zahid Amin, and Rana, Atif
- Published
- 2022
- Full Text
- View/download PDF
11. Rate and predictors of response to glucocorticoid therapy in patients of takayasu arteritis at a tertiary level hospital of Bangladesh: A longitudinal study
- Author
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Farzana Shumy, Ahmad Mursel Anam, Minhaj Rahim Choudhury, Md Abu Shahin, Syed Atiqul Haq, Md Zahid Amin, and Sumayia Minhaj
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glucocorticoid ,predictors ,remission ,takayasu arteritis ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Objectives: This study aimed to assess the rate of inactive disease in Bangladeshi patients with Takayasu arteritis (TA) treated with prednisolone and to identify the characteristics in patients that may guide in choosing induction therapy. Methods: The longitudinal study enrolled active TA patients who received 1 mg/kg/day of prednisolone. Disease activity was assessed by Indian Takayasu Activity Score - C-Reactive Protein (ITAS-CRP) and ITAS2010 at baseline and after 1, 3, and 6 months. The patients who did not achieve inactive disease or again became active during tapering of prednisolone received methotrexate. Results: Among 12 active TA patients, one patient succumbed to death after 15 days. ITAS2010 1 month after steroid showed a significant difference between remission and nonremission patients (P 0.0001). However, five out of 11 (45.45%) patients became inactive. These five patients had onset of symptoms
- Published
- 2021
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12. Gene expression and antibody response in chicken against Salmonella Typhimurium challenge
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Dar, Mashooq Ahmad, Urwat, Uneeb, Ahmad, Syed Mudasir, Ahmad, Raashid, Kashoo, Zahid Amin, Dar, Tanveer Ali, Bhat, Shakil Ahmad, Mumtaz, Peerzada Tajamul, Shabir, Nadeem, Shah, Riaz Ahmad, and Heidari, Mohammad
- Published
- 2019
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13. COMPLICATION RATE ASSOCIATED WITH TOTALLY IMPLANTABLE VENOUS ACCESS DEVICE (PORTACATH) - A SINGLE INSTITUTE RETROSPECTIVE STUDY.
- Author
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Khan, Zahid Amin, Khan, Khizer Ahmed, Akhtar, Ranam, Bhinder, Khurram Khaliq, Rauf, Maria, and Moqeet, Ahmad
- Subjects
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JUGULAR vein , *CANCER patient care , *CHEMOTHERAPY complications , *INTERVENTIONAL radiology , *PSEUDOMONAS aeruginosa - Abstract
AIM/OBJECTIVE: This retrospective study aimed to analyze the device-related complication rates and compare them with the literature. BACKGROUND: When it comes to providing care for cancer patients who need a continuous or frequent venous access channel for either their primary care treatments or their supportive care treatments, portacaths play a crucial role. Many cases are straight forward, however there may occasionally be issues. MATERIALS AND METHODS: A total of 59 consecutive patients (20 males and 39 females) having a mean age of 57.07 - 16.01 years presented to the interventional radiology department of Shifa International Hospital Islamabad who were implanted with portacaths from 2017 to 2023 were included. We retrospectively assessed all infectious and noninfectious complications associated with the implanted device. RESULT: The most common indication for portacath insertion was malignancy (94.9%) with breast cancer being more common. The most common site for portacath placement was the right internal jugular vein (76.3 %) followed by the left internal jugular vein (23.7%). The average period for which porta cath was placed was 13 months. No complications were seen in 67.8% of the patients. Infectious causes were seen in 25.4% of the cases, while noninfectious complications were seen in 6.8% of the cases. Following microbiology reports it was seen that pseudomonas aeruginosa was the common bug seen in infectious cases. CONCLUSION: Although portacaths are associated with lower complication rates, infections by different bugs are still the most common complications and should be prevented by taking appropriate steps. [ABSTRACT FROM AUTHOR]
- Published
- 2024
14. Ultrasonographic features of malignant catarrhal fever induced corneal oedema in cattle
- Author
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HAKIM ATHAR, JALAL UD DIN PARRAH, ZAHID AMIN KASHOO, SHAKIL AHMAD WANI, HAMIDULLAH MALIK, BASHIR AHMAD MOULVI, DIL MOHAMMED MAKHDOOMI, and MEHRAJ U DIN DAR
- Subjects
Corneal oedema ,Corneal opacity ,Corneal thickness ,Malignant catarrhal fever ,Ultrasonography ,Animal culture ,SF1-1100 - Abstract
The study was aimed to record the ocular ultrasonographic changes in the confirmed clinical cases of MCF. The cases were confirmed using hemi-nested polymerase chain reaction assay. Ocular ultrasonography was performed using a 10–18 MHz linear transducer (My Lab 40 Vet). Clinical signs observed were corneal oedema, lacrimation, photophobia, corneal oedema and hyperaemia of conjunctiva. In two animals, mild corneal oedema was observed while in four animals each, moderate and severe corneal oedema was recorded. In all the animals, corneal oedema initially appeared at the limbus with subsequent involvement of the entire cornea with varying degree of severity. Hemi-nested polymerase chain reaction was used for confirming the diagnosis. Ocular ultrasonographic examination revealed significant increase in the thickness of the cornea, iris and ciliary body. Anterior uveitis, characterized by thickened iris, exhibiting crust and trough formation covering the major part of the anterior surface of the lens was recorded in nine animals. There was no recovery in any of the case and the animals died within one month of the diagnosis of the MCF. Significant ultrasonographic changes were evident in eyes of animals affected with the malignant catarrhal fever. Ultrasonography may therefore be used for monitoring the ocular changes especially in the anterior segment of the opaque eyes.
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- 2021
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- View/download PDF
15. Expression kinetics of natural resistance associated macrophage protein (NRAMP) genes in Salmonella Typhimurium-infected chicken
- Author
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Mashooq Ahmad Dar, Raashid Ahmed, Uneeb Urwat, Syed Mudasir Ahmad, Pervaiz Ahmad Dar, Zahid Amin Kushoo, Tanveer Ali Dar, Peerzada Tajamul Mumtaz, Shakil Ahmad Bhat, Umar Amin, Nadeem Shabir, Hina Fayaz Bhat, Riaz Ahmad Shah, Nazir Ahmad Ganai, and Mohammad Heidari
- Subjects
Salmonella Typhimurium ,Poultry ,Histopathology ,Biochemistry ,Real time expression ,NRAMP ,Veterinary medicine ,SF600-1100 - Abstract
Abstract Background Salmonella enterica serovar Typhimurium (Salmonella Typhimurium) is a zoonotic pathogen responsible for severe intestinal pathology in young chickens. Natural resistance-associated macrophage protein (NRAMP) family has been shown to be associated with resistance to intracellular pathogens, including Salmonella Typhimurium. The role of NRAMP proteins in macrophage defence against microbial infection has been ascribed to changes in the metal-ion concentrations inside the bacteria-containing phagosomes. The present study was conducted to investigate tissue-specific (liver, spleen and caecum) expression kinetics of NRAMP gene family (NRAMP1 and NRAMP2) in broilers from day 0 to day 15 after Salmonella Typhimurium challenge concomitant to clinical, blood biochemical and immunological parameters survey. Results Clinical symptoms appeared 4 days post-infection (dpi) in infected birds. Symptoms like progressive weakness, anorexia, diarrhoea and lowering of the head were seen in infected birds one-week post-infection. On postmortem examination, liver showed congestion, haemorrhage and necrotic foci on the surface, while as the spleen, lungs and intestines revealed congestion and haemorrhages. Histopathological alterations were principally found in liver comprising of necrosis, reticular endothelial hyperplasia along with mononuclear cell and heterophilic infiltration. Red Blood Cell (RBC) count, Haemoglobin (Hb) and Packed Cell Volume (PCV) decreased significantly (P
- Published
- 2018
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16. Pictorial Review of Currently Available IR-Guided Procedures in Treating Portal Hypertension.
- Author
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Khan, Zahid Amin, Rauf, Maria, Bhinder, Khurram Khaliq, Khalid, Namrah, Rana, Atif, and Anwar, Jamshaid
- Subjects
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INTERVENTIONAL radiology , *GASTRIC varices , *PORTAL hypertension , *ETIOLOGY of diseases - Abstract
This article, published in the Arab Journal of Interventional Radiology, provides a pictorial review of currently available interventional radiology (IR) guided procedures for treating portal hypertension. The study, conducted in Pakistan, outlines the role of IR in diagnosing and treating complications related to portal hypertension. The article discusses various treatment options, including transjugular intrahepatic portosystemic shunt (TIPS), transjugular hepatic biopsy, sharp hepatic venous recanalization, CARTO, and portal vein embolization. The authors conclude that minimally invasive IR procedures are effective in diagnosing and managing portal hypertension-related complications, and are particularly beneficial in a developing country like Pakistan. [Extracted from the article]
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- 2024
- Full Text
- View/download PDF
17. Complication Rate Associated with Totally Implantable Venous Access Device (Portacath)—A Retrospective Study.
- Author
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Khan, Zahid Amin, Khan, Khizer Ahmed, Akhtar, Ranam, and Rauf, Maria
- Subjects
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ARTIFICIAL implants , *RETROSPECTIVE studies , *JUGULAR vein - Abstract
This article, published in the Arab Journal of Interventional Radiology, presents a retrospective study on the complication rate associated with totally implantable venous access devices, specifically Portacaths. The study analyzed 59 patients who were implanted with Portacaths between 2017 and 2023 at Shifa International Hospital Islamabad. The most common indication for Portacath insertion was malignancy, with breast cancer being the most common type. The study found that while Portacaths are generally associated with low complication rates, infections by different bacteria, particularly pseudomonas aeruginosa, were the most common complications. The authors recommend taking appropriate steps to prevent these infections. [Extracted from the article]
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- 2024
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- View/download PDF
18. Let's Dive in Ultrasound-Guided Renal Biopsy Complications in the Last Decade: A Single-Institute Study.
- Author
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Bhinder, Khurram Khaliq, Mehboob, Amna, Rana, Atif, Khan, Zahid Amin, Anwar, Jamshaid, Nasir, Humaira, Rauf, Maria, and Afzal, Ahmad Ammar
- Subjects
RENAL biopsy - Abstract
This article, titled "Let's Dive in Ultrasound-Guided Renal Biopsy Complications in the Last Decade: A Single-Institute Study," aims to assess the complications associated with ultrasound-guided renal biopsies at a specific institution over the past 10 years. The study found that percutaneous renal biopsy, while important for diagnosing renal pathologies, can lead to various complications such as hematuria, drop in hemoglobin, pain, infection, and hematoma formation. However, the study also noted that ultrasound-guided biopsy has fewer complications and better adequacy. The researchers recommend close monitoring of patients post-procedure for 24 hours to reduce morbidity and mortality rates. [Extracted from the article]
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- 2024
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19. Fluency Stent Graft in Trans-jugular Intrahepatic Portosystemic Shunt (TIPS): A Review about Pattern of In-stent Stenosis.
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Rana, Atif Iqbal, Rauf, Maria, Khan, Zahid Amin, and Anwar, Jamshaid
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STENOSIS ,BUDD-Chiari syndrome ,PORTAL vein - Abstract
This article, published in the Arab Journal of Interventional Radiology, reviews the pattern of in-stent stenosis after transjugular intrahepatic portosystemic shunt (TIPS) using the Fluency stent graft. The study conducted a retrospective review of 32 patients who underwent TIPS with the Fluency stent graft in combination with bare metal stents. The results showed that the majority of in-stent stenosis occurred at the portal vein end when using the combination of Fluency with a bare metal stent for TIPS creation. The authors suggest that this may be due to the difficulty in identifying portal venous access on fluoroscopy, leaving the proximal parenchymal tract uncovered by the Fluency stent and potentially leading to intimal hyperplasia and TIPS stenosis. [Extracted from the article]
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- 2024
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- View/download PDF
20. A REVIEW OF MRI APPEARANCES OF LIPIODOL IN CONVENTIONAL TACE (cTACE) TREATED HEPATOCELLULAR CARCINOMAS.
- Author
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Khan, Zahid Amin, Rana, Atif Iqbal, Rauf, Maria, Anwar, Jamshaid, Ali, Haider, and Afzal, Ahmad Ammar
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CONTRAST media ,CHEMOEMBOLIZATION ,LIVER diseases ,MAGNETIC resonance imaging ,HEPATOCELLULAR carcinoma - Abstract
Background: The global burden of patients affected by chronic liver disease (CLD) has shown a steady rise over the last few decades and is now considered the 11th most frequent cause of death globally. In addition, as the world population is facing increased obesity rates coupled with alcohol consumption, these rates are predicted to continue to rise. The Objective was to assess the appearance of Lipiodol retention upon different MRI sequences with a special focus on non-contrast sequences. Lipiodol Transarterial chemoembolization (TACE) has become the standard treatment for unresectable hepatocellular carcinoma (HCC) without vascular invasion. However, data regarding Lipiodol TACE imaging via MRI is limited and results are not familiar to radiologists for regular assessment of treatment response. Methods: After IRB and EC approval, we included all those patients who underwent TACE treatment with Lipiodol and chemotherapeutic agent; having both 4-6-week post-treatment CT and MRI imaging. This criterion was fulfilled by a total of 25 patients. Only lipiodol-containing areas within the lesion were noted for signal intensities on all MRI sequences and labelled as hyperintense, isointense, hypointense and mixed intensity. Data was entered and analyzed by SPSS v27. Frequencies and percentages were calculated for qualitative data. Results: The most sensitive sequence in detecting Lipiodol retention was Fat suppressed T1 imaging sequence, with low signal intensity seen on T1 weighted fat-suppressed sequences in up to 76% of lesions. While on non-fat suppressed T1 weighted images, 60% of Lipiodol retention areas appeared hyperintense. 52% of lesions showed a hypointense appearance on the T2 weighted sequence. A much more variable appearance was seen in Diffusion-weighted imaging sequences demanding cautious interpretation. MR patterns were clearer in patients having more than 50% lipiodol retention on CT and lesion size more than 2 cm. Conclusion: While MRI is deemed as a reliable and most useful imaging modality for assessing HCC's following lipiodol TACE it requires cautious interpretation with knowledge of variable signal appearance seen on different imaging sequences. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
21. Treatment of post COVID-19 pulmonary artery pseudoaneurysm: a report of two cases
- Author
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Bhinder, Khurram Khaliq, Rana, Atif Iqbal, Ali, Haider, Khan, Zahid Amin, Anwar, Jamshaid, Afzal, Ahmad Ammar, and Rauf, Maria
- Published
- 2024
- Full Text
- View/download PDF
22. BEYOND PCN AND URETERIC STENTING: A BEGINNER'S GUIDE TO DIVERSE VASCULAR AND NONVASCULAR RENAL INTERVENTIONS.
- Author
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Khan, Zahid Amin, Rana, Atif Iqbal, Khalid, Namrah, Rauf, Maria, Anwar, Jamshaid, and Afzal, Ahmad Ammar
- Subjects
- *
ANGIOMYOLIPOMA , *MINIMALLY invasive procedures , *EMERGENCY management , *RENAL cell carcinoma , *CYSTIC kidney disease , *RENAL artery , *ASSISTANCE in emergencies , *RADIOEMBOLIZATION - Abstract
Management of renal emergencies has revolutionized over the past years and in that domain intervention radiology has gained an emerging role as the minimally invasive procedures aid at salvaging renal function and minimizing morbidity and mortality. Aim of this study is to highlight emerging importance of newer transcatheter therapies available to intervention radiologists in managing renal emergencies,attending in detail the techniques and clinical outcomes of interventional procedures. METHOD: We compiled few of the procedures performed at Shifa international hospital, Islamabad from January 2017- January 2023. These include: Management of fibromuscular dysplasia. Renal angiomyolipoma embolization. Renal artery giant aneurysm coiling/ embolization. Management of post renal biopsy bleed. Post partial nephrectomy bleed management. Embolization of renal cell carcinoma metastasis to stomach and small bowel. Renal cyst alcohol ablation. CONCLUSION: Knowledge about the disease, procedures of intervention developed for their management and their clinico-therapeutic outcomes can help efficiently treat the patients with renal illnesses. [ABSTRACT FROM AUTHOR]
- Published
- 2023
23. Corrigendum to “Expression of lncRNAs in response to bacterial infections of goat mammary epithelial cells reveals insights into mammary gland diseases” [Microb. Pathog. 162 (2022) 105367–105378]
- Author
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Mumtaz, Peerzada Tajamul, Taban, Qamar, Bhat, Basharat, Ahmad, Syed Mudasir, Dar, Mashooq Ahmad, Kashoo, Zahid Amin, Ganie, Nazir A., and Shah, Riaz Ahmad
- Published
- 2022
- Full Text
- View/download PDF
24. Partial Tricuspid Valve Stenosis during Device Closure of Perimembranous Ventricular Septal Defect
- Author
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John L. Bass, Zahid Amin, and Elyssa F. Cohen
- Subjects
medicine.medical_specialty ,business.industry ,Tricuspid valve obstruction ,Perimembranous ventricular septal defect ,Percutaneous transcatheter pmVSD closure ,Closure (topology) ,General Medicine ,Interventional Image Guidance ,medicine.disease ,Perimembranous ventricular septal defects ,Internal medicine ,Tricuspid valve stenosis ,medicine ,Cardiology ,Hemodynamic instability ,business ,ComputingMethodologies_COMPUTERGRAPHICS - Abstract
Graphical abstract, Highlights • Hemodynamic instability occurs during advancement of delivery sheath. • Tricuspid valve tethering creates tricuspid valve obstruction. • Right atrial distension and leftward deviation of the atrial septum occurs. • Hemodynamic instability reverses with loosening of the arteriovenous loop.
- Published
- 2020
25. Technically Challenging Balloon Dilatation of IVC and Hepatic Vein Using TIPS Set via Groin Approach.
- Author
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Rana, Atif, Khan, Zahid Amin, Kanwal, Raana, and Rauf, Maria
- Subjects
- *
MEDICAL balloons , *VENA cava inferior , *HEPATIC veins - Published
- 2023
- Full Text
- View/download PDF
26. Application of fuzzy goal programming approach in the real-life problem of agriculture sector.
- Author
-
Malik, Zahid Amin, Kumar, Rakesh, Pathak, Govind, Roy, Haridas, and Malik, Mohd Azhar-Ud-Din
- Subjects
GOAL programming ,FARM management ,APPLE growing ,DECISION support systems ,AGRICULTURE - Abstract
Goal: The present study aimed to demonstrate the applicability of the fuzzy goal programming to frame the decision support system for the decision-makers to deal with the real-life problem of the agriculture sector namely the apple cultivation planning problem and to obtain an optimum solution. Design / Methodology / Approach: The proposed method occurred within the apple-producing sector in the Kashmir valley of India and included the collection of data through interviews and surveys with various farmers. Also, the results were drawn with the help of LINGO 18.0. Results: The current finding implies that all of the desired objectives have been met, as well as an optimal solution. The proposed model offers a significant approach for designing plans to determine various agricultural activities in a fuzzy decision environment. Finally, the current study conducts a case study in the apple cultivation sector to obtain various competing objectives. Sensitivity analysis was also performed on its preferential weight parameters. Limitations of the investigation: It should be noted that the parameters related to production cost, transportation cost, and cost of material may change over the years. The selling price may also vary according to the quality of apples and over the years. Because of natural factors, the annual production of apples may also vary. Practical implication: The current study shows that using fuzzy goal programming techniques in an apple production process has a huge potential to increase farmers' income. It can be concluded that the current study can help decision-makers to deal with real-life planning issues in the agricultural sector. Future research can also take advantage of other initiation strategies. OriginalityNalue: The study looks at the applicability of the fuzzy goal programming paradigm in a new field of apple production in the agriculture sector. According to our knowledge, this is the first time the optimization model has been used in the apple cultivation sector. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
27. SAVING THE UTERUS; OUR EXPERIENCE IN UTERINE ARTERY EMBOLIZATION FOR ACQUIRED UTERINE VASCULAR ABNORMALITIES.
- Author
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Masood, Laiba, Khan, Zahid Amin, Ahmad, Muhammad Shozab, Rana, Atif Iqbal, and Ali, Haider
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UTERINE artery ,THERAPEUTIC embolization ,VASCULAR diseases ,ARTERIOVENOUS malformation ,MINIMALLY invasive procedures - Abstract
Background: Acquired uterine vascular abnormalities are a rare cause of potentially lifethreatening bleeding. These include uterine artery pseudoaneurysms (UAP)and acquired arteriovenous malformations. The objective of this study was to describe our experience with the diagnosis of acquired uterine vascular abnormalities and its treatment with uterine preservation. It was a retrospective cohort study. Methods: Eight patients were enrolled from the hospital database who presented to our Interventional Radiology department from April 2017 to March 2021 for uterine artery embolisation (UAE) with a history of iatrogenic/acquired uterine vascular abnormalities confirmed on imaging. These included two patients with uterine artery pseudoaneurysm (PA) concurrently with arteriovenous malformation (AVM), one with uterine artery PA and five having uterine AVMs. Embolisation agents used were histoacryl glue, lipiodol, PVA particles, and gelfoam slurry. Medical records, imaging studies, and telephonic contact with patients were assessed for patient presentation, intraprocedural details, and follow up to record treatment success. Statistical analysis was performed using descriptive statistics. Results: Bilateral UAE was performed in six patients, while two patients underwent unilateral UAE. Three of the patients presented with life-threatening bleeds requiring multiple transfusions. Clinical as well as angiographic success was achieved in all patients with immediate control of haemorrhage. No complications were observed during follow-up. Two of the patients were able to conceive normally within one year, though it resulted in a miscarriage. Conclusion: Acquired/iatrogenic uterine vascular abnormalities are a rare but important cause of life-threatening haemorrhage that can be expertly managed and successfully treated using UAE, which is rapid, safe, and minimally invasive, with the added advantage fertility preservation. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
28. Technically challenging IVC filter retrievals using rigid endobronchial forceps: A severely tilted filter and a 5-year-old filter
- Author
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Bhinder, Khurram Khaliq, Rana, Atif, Khan, Zahid Amin, Saleem, Sultan, Idrees, Rana Bilal, and Anwar, Jamshaid
- Published
- 2023
- Full Text
- View/download PDF
29. Application of goal programming in the textile apparel industry to resolve production planning problems - a meta-goal programming technique using weights.
- Author
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Malik, Zahid Amin, Kumar, Rakesh, Pathak, Govind, and Roy, Haridas
- Subjects
GOAL programming ,PRODUCTION planning ,PRODUCTION scheduling ,TEXTILE industry ,SENSITIVITY analysis ,CLOTHING industry ,ASSET allocation - Abstract
In the present business environment, rapidly developing technology and the competitive world market pose challenges to the available assets of industries. Hence, industries need to allocate and use available assets at the optimum level. Thus, industrialists must create a good decision plan to guide their performance in the production sector. As a result, the present study applies the Meta-Goal Programming technique to attain several objectives simultaneously in the textile production sector. The importance of this study lies in pursuing different objectives simultaneously, which has been almost ignored till now. The production scheduling problem in a textile firm is used to illustrate the practicability and mathematical validity of the suggested approach. Analysis of the results obtained demonstrates that the solution met all three meta-goals with some original goals being met partially. An analysis of the sensitivity of the approach to the weights of the preferences was conducted. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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30. The knowledge level of rheumatoid arthritis patients about their disease in a developing country: A study in 168 Bangladeshi RA patients
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Shamim Ahmed, Syed Atiqul Haq, Md. Ak Azad, A. K. M. Kamruzzaman, Nazrul Islam, Abu Shahin, Minhaj Rahim Chowdhury, Mohammad Mahbubul Alam, Imtiaz Sultan, Zahid Amin, Nahiduzzamane Shazzad, Habib Imtiaz Ahmad, Johannes J. Rasker, M. Masudul Hassan, Sonia Nasreen Ahmad, Sudeshna Sinha, and Psychology, Health & Technology
- Subjects
Adult ,Male ,Health Knowledge, Attitudes, Practice ,medicine.medical_specialty ,Adolescent ,Health Status ,UT-Hybrid-D ,Disease ,Severity of Illness Index ,Arthritis, Rheumatoid ,Correlation ,Young Adult ,Patient Education as Topic ,Rheumatology ,Surveys and Questionnaires ,Internal medicine ,medicine ,Humans ,Developing Countries ,Socioeconomic status ,Aged ,Bangladesh ,business.industry ,Knowledge level ,Regression analysis ,General Medicine ,Middle Aged ,medicine.disease ,Rheumatoid arthritis ,Regression Analysis ,Female ,Analysis of variance ,business - Abstract
Objectives To assess disease-related knowledge of rheumatoid arthritis (RA) patients Patients and methods Consecutive RA patients were invited from the rheumatology departments of BSMM University, Dhaka, Bangladesh. The Bangla version of the Patient Knowledge Questionnaire (B-PKQ) was used. Correlations between the B-PKQ scores and clinical-demographic data were measured using Pearson’s correlation coefficient. Impact of independent variables on the level of knowledge about RA was analyzed through multiple regression analysis. Possible explanatory variables included the following: age, disease duration, formal education level, and Bangla Health Assessment Questionnaire (B-HAQ) score. Analysis of variance (ANOVA) was used to test the difference between demographical, clinical, and socioeconomic variables. For statistical analysis, SPSS statistics version 20 was used. Results A total of 168 RA patients could be included. The mean B-PKQ score was 9.84 (range 1–20) from a possible maximum of 30. The mean time for answering the questionnaire was 24.3 min (range 15–34). Low scores were observed in all domains but the lowest were in medications and joint protection/energy conservation. Knowledge level was higher (15.5) in 6 patients who had RA education before enrollment. B-PKQ showed positive correlation with education level (r = 0.338) and negative correlation with HAQ (r = −0.169). The B-PKQ showed no correlation with age, disease duration, having first degree family member with RA, education from other sources (neighbor, RA patient, nurses), or information from mass media. Conclusions Disease-related knowledge of Bangladeshi RA patients was poor in all domains. Using these findings, improved education and knowledge will result in better disease control.Key Points• Little is known about the knowledge of RA patients regarding their disease and its treatment in Bangladesh and in developing countries in general.• We found that the knowledge of Bangladeshi RA patients regarding their disease was poor in all domains; it correlated positive with education level and negative with function (HAQ), but showed no correlation with age or disease duration.• The findings of this study can be used for improving current patient education programs by health professionals and through mass media.• Better disease control of RA may be achieved by improving patient knowledge in a developing country like Bangladesh, but also in other parts of the world.
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- 2020
31. Metastatic Gastro-intestinal Neuroendocrine Tumors: A Case Report of Real Life Management Challenges and Success
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Zekri, Jamal and Khan, Zahid Amin
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- 2013
32. Isolation, molecular characterization and prevalence of Clostridium perfringens in sheep and goats of Kashmir Himalayas, India
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Showkat A Ahangar, S.A. Wani, Salik Nazki, Tanveer Ahmad Dar, Syed Hamid, Zahid Amin Kashoo, Rafia Parveen, Pervaiz Dar, and Zahoor Ahmad Dar
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0301 basic medicine ,Veterinary medicine ,toxinotype ,Clostridium perfringens ,030106 microbiology ,Biology ,medicine.disease_cause ,SF1-1100 ,law.invention ,Enterotoxemia ,03 medical and health sciences ,law ,Multiplex polymerase chain reaction ,SF600-1100 ,medicine ,16S rRNA ,Polymerase chain reaction ,High prevalence ,General Veterinary ,Toxin ,Isolation (microbiology) ,16S ribosomal RNA ,Animal culture ,multiplex polymerase chain reaction ,enterotoxemia - Abstract
Aim The study was conducted to report the occurrence of the Clostridium perfringens in sheep and goats of the Kashmir valley for the 1st time and to characterize them molecularly with respect to toxin genes to determine the prevalence of the various toxinotypes. Materials and methods A total of 177 samples (152 from sheep and 25 from goats) collected from healthy, diarrheic animals, and morbid material of animals suspected to have died of enterotoxaemia were screened for C. perfringens toxinotypes. The presumptive positive isolates were confirmed using 16S rRNA gene-based polymerase chain reaction (PCR). All the confirmed isolates were screened for six toxin genes, namely; cpa, cpb, etx, cpi, cpb2, and cpe using a multiplex PCR. Results The PCR amplification of 16S rRNA gene revealed that out of 177 samples collected, 125 (70.62%) were found positive for C. perfringens, of which 110 (72.36%) were from sheep and 15 (60%) were from goats. The highest prevalence of C. perfringens toxinotype D was observed in lambs (56.16%) and kids (46.16%) followed by 3.84% in adult sheep while it was absent in samples obtained from adult goats. The multiplex PCR revealed that 67 (60.90%) isolates from sheep and 8 (53.33%) isolates from goats belonged to toxinotype A, while 43 (39.09%) isolates from sheep and 7 (46.66%) isolates from goats were detected as toxinotype D. None of the isolates was found to be toxinotype B, C, or E. All the C. perfringens toxinotype A isolates from sheep were negative for both cpb2 and cpe genes, however, 27.90% toxinotype D isolates from sheep carried cpb2 gene, and 6.97% possessed cpe gene. In contrast, 12.50% C. perfringens toxinotype A isolates from goats harbored cpb2 and cpe genes while 14.28% isolates belonging to toxinotype D carried cpb2 and cpe genes, respectively. Conclusion The high prevalence of C. perfringens was observed, even in day-old lambs. The toxinotypes A and D are prevalent in both sheep and goats. The severity of disease and mortality may be associated with the presence of minor toxins in both the detected toxinotypes.
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- 2017
33. Proposal for Updated Nomenclature and Classification of Potential Causative Mechanism in Patent Foramen Ovale-Associated Stroke
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Helmi L. Lutsep, Preetham Kumar, Muhammad Zaman, Jean-Louis Mas, Bernhard Meier, Iris Q. Grunwald, Heinrich Mattle, Akram Y. Elgendy, David S Liebeskind, John F. Rhodes, John D. Carroll, Robert J. Sommer, Clifford J. Kavinsky, Eric Horlick, Islam Y. Elgendy, Jeffrey L. Saver, Ziyad M. Hijazi, Steven R. Messé, David E. Thaler, Lars Søndergaard, Nimesh K. Patel, Scott E. Kasner, Zahid Amin, Ahmad Mahmoud, Mark Reisman, Fabian Nietlispach, Mohammad K. Mojadidi, David M. Kent, Konstantinos Dean Boudoulas, Zachary M. Gertz, Ahmed N. Mahmoud, Horst Sievert, and Jonathan M. Tobis
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medicine.medical_specialty ,Foramen Ovale, Patent ,law.invention ,03 medical and health sciences ,Therapeutic approach ,0302 clinical medicine ,Paradoxical embolism ,Randomized controlled trial ,law ,Terminology as Topic ,medicine ,Humans ,In patient ,030212 general & internal medicine ,cardiovascular diseases ,Intensive care medicine ,610 Medicine & health ,Stroke ,Ischemic Stroke ,Mechanism (biology) ,business.industry ,medicine.disease ,Ischemic stroke ,Patent foramen ovale ,Neurology (clinical) ,business ,030217 neurology & neurosurgery - Abstract
Importance Recent epidemiologic and therapeutic advances have transformed understanding of the role of and therapeutic approach to patent foramen ovale (PFO) in ischemic stroke. Patent foramen ovale is likely responsible for approximately 5% of all ischemic strokes and 10% of those occurring in young and middle-aged adults. Observations Randomized clinical trials have demonstrated that, to prevent recurrent ischemic stroke in patients with PFO and an otherwise-cryptogenic index ischemic stroke, PFO closure is superior to antiplatelet medical therapy alone; these trials have provided some evidence that, among medical therapy options, anticoagulants may be more effective than antiplatelet agents. Conclusions and Relevance These new data indicate a need to update classification schemes of causative mechanisms in stroke, developed in an era in which an association between PFO and stroke was viewed as uncertain. We propose a revised general nomenclature and classification framework for PFO-associated stroke and detailed revisions for the 3 major stroke subtyping algorithms in wide use.
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- 2020
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34. Avian Paramyxovirus Serotype-1 Detection from Chicken Reared in Kashmir Valley
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Younis Ganaie, Parvaiz S Dar, Rafia Maqbool, S.A. Wani, Sabia Qureshi, Asifa Wali, Zahid Amin Kashoo, Aazima Shah, Najimaana Wani, Salik Nazki, and I. Hussain
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0301 basic medicine ,Serotype ,Avian paramyxovirus ,animal structures ,040301 veterinary sciences ,matrix protein gene ,Outbreak ,04 agricultural and veterinary sciences ,avian paramyxovirus serotype 1 ,Biology ,biology.organism_classification ,Applied Microbiology and Biotechnology ,Virology ,Microbiology ,QR1-502 ,0403 veterinary science ,03 medical and health sciences ,030104 developmental biology ,Animal science ,Disease transmission ,Biotechnology - Abstract
Avian paramyxovirus serotype-1 (AMPV1) infects a wide range of avian species leading to broader range of clinical symptoms. The ease of transmission has allowed the virus to spread worldwide with varying degree of virulence depending upon virus strain and host range. Rapid detection is an important step to prevent an outbreak of the disease. The present study was carried out to detect APMV-1 from chicken reared in Kashmir Valley. Out of 12 suspected disease outbreaks, all were positive for AMPV-1. APMV-1 was detected using Matrix Protein gene (M gene) by RT-PCR. Detection by M gene is used for primary screening of the APMV-1 in chicken with both virulent and avirulent forms.
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- 2017
35. Popular Hybrid Congenital Heart Procedures without Cardiopulmonary Bypass
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Zahid Amin and Aamisha Gupta
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medicine.medical_specialty ,Heart disease ,medicine.medical_treatment ,Psychological intervention ,Review ,030204 cardiovascular system & hematology ,law.invention ,03 medical and health sciences ,pulmonary valve ,0302 clinical medicine ,perventricular ,law ,medicine ,Cardiopulmonary bypass ,Intensive care medicine ,Heart procedures ,Interventional cardiology ,hybrid ,business.industry ,Stent ,medicine.disease ,Catheter ,medicine.anatomical_structure ,030228 respiratory system ,Pulmonary valve ,Surgery ,stent ,business - Abstract
As surgical and catheter interventions advance, patients with congenital heart disease are now offered alternative treatment options that cater to their individual needs. Furthermore, collaboration between interventional cardiologists and cardiac surgeons have led to the development of hybrid procedures, using the best techniques of each respective field to treat these complex cardiac entities from initial treatment in the pediatric patient, to repeat intervention in the adult. We present a review of the increased popularity and trend in hybrid procedures in congenital heart disease without the use of cardiopulmonary bypass.
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- 2017
36. PITFALLS TO AVOID WHILE EMBOLIZING PSEUDOANEURYSMS OF THE UTERINE ARTERY- A CASE SERIES.
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Kanwal, Raana, Shozab, Muhammad, Ali, Haider, Anwar, Jamshaid, Khan, Zahid Amin, and Rana, Atif
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FALSE aneurysms ,RADIOLOGY - Published
- 2021
37. Patent Foramen Ovale
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Zahid Amin, Jonathan M. Tobis, Horst Sievert, John D. Carroll, Zahid Amin, Jonathan M. Tobis, Horst Sievert, and John D. Carroll
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- Echocardiography, Heart--Physiology
- Abstract
This book is the ultimate reference on patent foramen ovale (PFO), a defect in the septum of the heart estimated to be present in more than twenty percent of the adult population and a proven cause of systemic embolism. All chapters have been written by internationally recognized experts in the field and cover PFO genetics and anatomy in addition to the effect PFO can have on various different organs and its supposed involvement in several conditions and clinical syndromes such as migraine, diving incidence, platynea orthodeoxia, economy class syndrome, sleep apnea and persistent desaturations in mild right ventricular dysfunction. As PFO anatomy varies significantly between individuals, chapters have also been included on the diagnostic tools, methods and techniques for appropriate assessment, detection and characterization of PFO. Furthermore, the multitude of available closure devices and techniques for PFO closure are discussed together with current and ongoing trial data. The book concludes with guidance and instruction on establishing a successful PFO program.Patent Foramen Ovale will be an essential text for the whole adult and pediatric interventional community, general cardiologists, internists, primary care physicians, neurologists and device companies in addition to medical students, graduate students and fellows in training.
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- 2014
38. First Fenestrated Endovascular Aortic Aneurysm Repair in Pakistan.
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Choudry, Usama Khalid, Ehsan, Omer, Khan, Zahid Amin, and Amin, Amina
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- 2021
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39. Expression kinetics of natural resistance associated macrophage protein (NRAMP) genes in Salmonella Typhimurium-infected chicken.
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Ahmad Dar, Mashooq, Ahmed, Raashid, Urwat, Uneeb, Ahmad, Syed Mudasir, Ahmad Dar, Pervaiz, Kushoo, Zahid Amin, Ali Dar, Tanveer, Mumtaz, Peerzada Tajamul, Bhat, Shakil Ahmad, Amin, Umar, Shabir, Nadeem, Bhat, Hina Fayaz, Shah, Riaz Ahmad, Ganai, Nazir Ahmad, and Heidari, Mohammad
- Abstract
Background: Salmonella enterica serovar Typhimurium (Salmonella Typhimurium) is a zoonotic pathogen responsible for severe intestinal pathology in young chickens. Natural resistance-associated macrophage protein (NRAMP) family has been shown to be associated with resistance to intracellular pathogens, including Salmonella Typhimurium. The role of NRAMP proteins in macrophage defence against microbial infection has been ascribed to changes in the metalion concentrations inside the bacteria-containing phagosomes. The present study was conducted to investigate tissuespecific (liver, spleen and caecum) expression kinetics of NRAMP gene family (NRAMP1 and NRAMP2) in broilers from day 0 to day 15 after Salmonella Typhimurium challenge concomitant to clinical, blood biochemical and immunological parameters survey. Results: Clinical symptoms appeared 4 days post-infection (dpi) in infected birds. Symptoms like progressive weakness, anorexia, diarrhoea and lowering of the head were seen in infected birds one-week post-infection. On postmortem examination, liver showed congestion, haemorrhage and necrotic foci on the surface, while as the spleen, lungs and intestines revealed congestion and haemorrhages. Histopathological alterations were principally found in liver comprising of necrosis, reticular endothelial hyperplasia along with mononuclear cell and heterophilic infiltration. Red Blood Cell (RBC) count, Haemoglobin (Hb) and Packed Cell Volume (PCV) decreased significantly (P < 0.05) in blood while heterophil counts increased up to 7 days post-infection. Serum glucose, aspartate transaminase (AST) and alanine transaminase (ALT) enzymes concentrations increased significantly throughout the study. A gradual increase of specific humoral IgG response confirmed Salmonella infection. Meanwhile, expression of NRAMP1 and NRAMP2 genes was differentially regulated after infection in tissues such as liver, spleen and caecum known to be the target of Salmonella Typhimurium replication in the chicken. Conclusion: Thus the specific roles of NRAMP1 and NRAMP2 genes in Salmonella Typhimurium induced disease may be supposed from their differential expression according to tissues and timing after per os infection. However, these roles remain to be analyzed related to the severity of the disease which can be estimated by blood biochemistry and immunological parameters. [ABSTRACT FROM AUTHOR]
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- 2018
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40. Endovascular Aortic Repair for Thoracic Aortic Injuries.
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Ehsan, Omer, Choudry, Usama Khalid, Rana, Atif, and Khan, Zahid Amin
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- 2018
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41. Molecular characterization of p80 gene of Indian Mycoplasma agalactiae isolates.
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KASHOO, ZAHID AMIN, SINGH, VIJENDAR PAL, RANA, RAJNEESH, SANKAR, MUTHU, GAZALLI, HUMAIRA, and JACOB, SIJU SUSAN
- Abstract
The article discusses a study which aimed to characterize the membrane protein p80 of Mycoplasma (M.) agalactiae for specific diagnosis of disease as p80 protein is expressed in field strains and throughout the course of infection. The results revealed that the membrane protein p80 is a conserved antigen in the Indian isolates of M. agalactiae. The researchers recommend its use for specific diagnosis of contagious agalactia.
- Published
- 2011
42. Transcatheter closure of secundum atrial septal defects.
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Zahid Amin
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- 2006
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43. Erosion of Amplatzer septal occluder device after closure of secundum atrial septal defects: Review of registry of complications and recommendations to minimize future risk.
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Zahid Amin, Ziyad M. Hijazi, John L. Bass, John P. Cheatham, William E. Hellenbrand, and Charles S. Kleinman
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- 2004
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44. Transcatheter closure of postinfarction ventricular septal defects using the new Amplatzer muscular VSD occluder: Results of a U.S. Registry.
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Ralf Holzer, David Balzer, Zahid Amin, Carlos E. Ruiz, Jeffrey Feinstein, John Bass, Michael Vance, Qi-Ling Cao, and Ziyad M. Hijazi
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- 2004
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45. The Genesis stent: A new low-profile stent for use in infants, children, and adults with congenital heart disease.
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Thomas J. Forbes, Edwin Rodriguez-Cruz, Zahid Amin, Lee N. Benson, Thomas E. Fagan, William E. Hellenbrand, Larry A. Latson, Phillip Moore, Charles E. Mullins, and Julie A. Vincent
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- 2003
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46. Coronary arterial size late after the atrial inversion procedure for transposition of the great arteries: Implications for the arterial switch operation
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Philip Moore, V. Mohan Reddy, Doff B. McElhinney, Zahid Amin, and Frank L. Hanley
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Pulmonary and Respiratory Medicine ,Adult ,medicine.medical_specialty ,Time Factors ,Body Surface Area ,Transposition of Great Vessels ,Ventricular Dysfunction, Right ,Severity of Illness Index ,Pulmonary artery banding ,Left coronary artery ,medicine.artery ,Internal medicine ,Coronary Circulation ,medicine ,Humans ,Anthropometry ,Hypertrophy, Right Ventricular ,Ventricular Remodeling ,business.industry ,Patient Selection ,Coronary flow reserve ,Transposition of the great vessels ,medicine.disease ,Coronary Vessels ,Surgery ,Coronary arteries ,medicine.anatomical_structure ,Ventricle ,Great arteries ,Right coronary artery ,Case-Control Studies ,Cardiology ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background: Coronary flow reserve in the hypertrophied ventricle is reduced. One contributing factor may be the size of the proximal coronary arteries. In patients who undergo atrial inversion procedures for transposition of the great arteries, the left coronary artery supplies the pulmonary ventricle and may be smaller than the right coronary artery. We hypothesized that the dimensions of the coronary arteries may correlate with symptomatic status after atrial inversion and may be an important factor when these patients are considered for the arterial switch operation. Methods: The proximal left and right coronary arteries were measured in 9 patients with transposition and failure of the systemic right ventricle after atrial inversion, 10 asymptomatic patients after atrial inversion, and 10 patients with normal hearts. The diameters of the coronary arteries were indexed to body surface area and compared. Results: The absolute and indexed diameters of the right coronary artery were greater in symptomatic patients than in asymptomatic patients (indexed: 3.1 ± 0.6 vs 2.4 ± 0.4 mm/m2, P < .001) or control patients (2.0 ± 0.3, P < .001), and the absolute diameter of the left coronary artery was smaller (2.9 ± 0.7 vs 3.6 ± 0.5 mm, P = .003 [asymptomatic], 3.6 ± 0.5 mm, P = .01 [control]). In symptomatic patients, the absolute and indexed diameters of the left coronary artery were smaller than those of the right (indexed: 2.1 ± 0.6 vs 3.1 ± 0.6 mm/m2, P < .001). By contrast, there was no difference in asymptomatic patients (2.2 ± 0.5 vs 2.4 ± 0.4 mm/m2, P = .44), and the left coronary artery was larger in normal control patients (2.2 ± 0.4 vs 2.0 ± 0.3 mm/m2, P < .001). Conclusions: Differences in the sizes of the proximal coronary arteries may be related to symptomatic status in patients with transposition of the great arteries who have undergone an atrial inversion procedure, as well as to the efficacy of ventricular retraining. When pulmonary artery banding and subsequent arterial switch are considered for patients with a Mustard or Senning procedure and a failing systemic right ventricle, the size of the proximal coronary arteries may be an important factor and should be evaluated with preoperative imaging studies. (J Thorac Cardiovasc Surg 2000;120:1047-52)
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47. Comparison of Surgical, Stent, and Balloon Angioplasty Treatment of Native Coarctation of the Aorta An Observational Study by the CCISC (Congenital Cardiovascular Interventional Study Consortium)
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Thomas J, Forbes, Dennis W, Kim, Wei, Du, Daniel R, Turner, Ralf, Holzer, Zahid, Amin, Ziyad, Hijazi, Abdolrahim, Ghasemi, Jonathan J, Rome, David, Nykanen, Evan, Zahn, Collin, Cowley, Mark, Hoyer, David, Waight, Daniel, Gruenstein, Alex, Javois, Susan, Foerster, Jacqueline, Kreutzer, Nancy, Sullivan, Asra, Khan, Carl, Owada, Donald, Hagler, Scott, Lim, Joshua, Canter, and Thomas, Zellers
- Subjects
Adult ,Male ,Adolescent ,surgical treatment ,Infant ,Young Adult ,Treatment Outcome ,Child, Preschool ,balloon angioplasty ,Humans ,Female ,Stents ,stent ,Child ,Vascular Surgical Procedures ,aortic coarctation ,Angioplasty, Balloon - Abstract
ObjectivesThe purpose of this study was to compare the safety and efficacy of surgical, stent, and balloon angioplasty (BA) treatment of native coarctation acutely and at follow-up.BackgroundControversy surrounds the optimal treatment for native coarctation of the aorta. This is the first multicenter study evaluating acute and follow-up outcomes of these 3 treatment options in children weighing >10 kg.MethodsThis is a multicenter observational study. Baseline, acute, short-term (3 to 18 months), and intermediate (>18 months) follow-up hemodynamic, imaging data, and complications were recorded.ResultsBetween June 2002 and July 2009, 350 patients from 36 institutions were enrolled: 217 underwent stent, 61 underwent BA, and 72 underwent surgery. All 3 arms showed significant improvement acutely and at follow-up in resting systolic blood pressure and upper to lower extremity systolic blood pressure gradient (ULG). Stent was superior to BA in achieving lower ULG acutely. Surgery and stent were superior to BA at short-term follow-up in achieving lower ULG. Stent patients had shorter hospitalization than surgical patients (2.4 vs. 6.4 days; p < 0.001) and fewer complications than surgical and BA patients (2.3%, 8.1%, and 9.8%; p < 0.001). The BA patients were more likely to encounter aortic wall injury, both acutely and at follow-up (p < 0.001).ConclusionsStent patients had significantly lower acute complications compared with surgery patients or BA patients, although they were more likely to require a planned reintervention. At short-term and intermediate follow-up, stent and surgical patients achieved superior hemodynamic and integrated aortic arch imaging outcomes compared with BA patients. Because of the nonrandomized nature of this study, these results should be interpreted with caution.
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48. Off-pump pulmonary valve placement
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Zahid Amin
- Subjects
Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,medicine.anatomical_structure ,business.industry ,Internal medicine ,Pulmonary valve ,medicine ,Cardiology ,Surgery ,business ,Cardiology and Cardiovascular Medicine - Full Text
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49. Closure of muscular ventricular septal defects with modified Amplatz device in a canine model
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X. Gu, M. Urness, John L. Bass, Jack L. Titus, K. Amplatz, Zahid Amin, and James M. Berry
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medicine.medical_specialty ,business.industry ,Internal medicine ,medicine ,Cardiology ,Closure (topology) ,Cardiology and Cardiovascular Medicine ,business ,Canine model - Full Text
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50. High-dose chemotherapy and peripheral hematopoietic stem cell transplantation in relapsed/refractory Hodgkin's lymphoma.
- Author
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Kelta M, Zekri J, Abdelghany E, Rehman JU, Khan ZA, Al-Saadi R, and Dada R
- Subjects
- Adolescent, Adult, Child, Combined Modality Therapy methods, Disease-Free Survival, Female, Hematopoietic Stem Cell Transplantation methods, Humans, Male, Middle Aged, Retrospective Studies, Salvage Therapy methods, Transplantation, Autologous methods, Young Adult, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Hodgkin Disease drug therapy, Hodgkin Disease surgery, Neoplasm Recurrence, Local drug therapy, Neoplasm Recurrence, Local surgery
- Abstract
Purpose: High-dose chemotherapy (HDCT) and autologous stem cell transplantation (ASCT) is used to treat patients with relapsed Hodgkin's lymphoma. In this retrospective study we report our experience with patients who underwent HDCT and ASCT., Methods: All patients ≥15 years old with relapsed/refractory Hodgkin's lymphoma who underwent HDCT and ASCT between June 2001 and December 2013 were included., Results: Fifty-four patients were identified. Median age at transplant was 22 years (range 15-49 years); 26 were men and 28 were women. Forty-eight patients (89%) underwent HDCT and ASCT after achieving a radiological response to salvage chemotherapy. The rate of radiological complete response to salvage chemotherapy was 13% and reached 50% within 3 months of ASCT in assessable patients. After a median follow-up of 25 months, 31 patients (57%) were still alive with no evidence of relapse or progression. Median event-free survival (EFS) was 24 months (95% CI 8.7-39.3) and 3-year EFS was 56%. Median overall survival (OS) was not reached and 3-year OS was 82.5%. Bulky mediastinal disease at relapse, hemoglobin level, and number of salvage regimens did not significantly impact EFS in univariate and multivariate analyses. After transplantation there was a trend towards longer EFS (30 vs. 24 months; p = 0.36) in patients with a longer time from the end of first-line treatment until relapse (≥12 vs. <12 months). The 100-day transplant-related mortality was 5.5%., Conclusions: HDCT and ASCT for relapsed/refractory Hodgkin's lymphoma is safe. Our findings are consistent with published phase III results. Longer follow-up is warranted.
- Published
- 2018
- Full Text
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