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Abdul-Malak OM, Cherfan P, Liang N, Eslami M, Singh M, Mohapatra A, Zaghloul M, Madigan M, Al-Khoury G, Makaroun M, Chaer RA. Serious Failure Modes After EVAR Are Device Specific. J Endovasc Ther 2024:15266028241248345. [PMID: 38733297 DOI: 10.1177/15266028241248345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2024]
Abstract
OBJECTIVES Type I and III endoleaks following endovascular aneurysm repair (EVAR) can lead to catastrophic events that require major re-interventions. We reviewed our experience with aortic endograft re-interventions for type I and III endoleaks and other serious failures among different devices. METHODS We retrospectively reviewed patients with a prior EVAR who underwent open conversion (OC) or major endovascular intervention (MEI) (re-lining, cuff/limb extension, parallel graft) for type I/III endoleaks at our institution from 2002 to 2019. Baseline characteristics, procedural details, re-interventions, and outcomes were collected. RESULTS A total of 229 patients (194 men) underwent re-interventions for type I and III endoleaks after EVAR (90 OC, 139 MEI) for devices implanted between 1997 and 2019. Average age at re-intervention was 78±8.5 years. A total of 135 (59%) were implanted at our institution, whereas 93 (41%) were referred. Median time to re-intervention was 4 years with 25% to 75% interquartile range (IQR) of 2.2-6.6 years. There was no significant difference in baseline demographics or type of re-interventions (OC/MEI) between device types. 42/229 (18%) presented with ruptured aneurysms, 20/229 (9%) were symptomatic, whereas the rest presented with asymptomatic radiographic findings. Type 1A endoleak was present in 146/229 (63.8%-72 with proximal migration), type IB in 46/229 (20.1%), type IIIA in 37/229 (16.6%), type IIIB in 15/229 (6.5%), and persistent aneurysm sac growth with no radiographic evidence of an endoleak in 6/229 (2.6%). Devices included most commercial products: AFX, Excluder, AneuRx, Ancure, Endurant, and Zenith. A smaller number of investigational devices accounted for the rest. Type 1A endoleak was the most common indication for re-intervention among all devices except for AFX and ancure devices, proximal migration was a frequent presentation with AneuRx. AFX devices more frequently presented with a type III and ancure devices more frequently presented with a type IB endoleak. CONCLUSIONS Serious failure modes after EVAR differ between endografts and occur throughout the follow-up period. This is important to guide targeted interrogation of surveillance studies and follow-up schedules, even for discontinued devices, as well as comparisons between various series and estimation of EVAR failure rates. CLINICAL IMPACT Surveillance after EVAR is critical for long term success of the repair, understanding of the differential modes of failure of every graft available is important in the longitudinal evaluation of these endografts. Equally important is the understanding of the modes of failure of legacy endografts that are no longer on the market but still being followed, in order to be able to tailor a surveillance regiemn and the evntual repair if needed.
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Affiliation(s)
- O M Abdul-Malak
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - P Cherfan
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - N Liang
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - M Eslami
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - M Singh
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - A Mohapatra
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
- Division of Vascular Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - M Zaghloul
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - M Madigan
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - G Al-Khoury
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - M Makaroun
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - R A Chaer
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, PA, USA
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Khadembashiri MM, Ghasemi E, Khadembashiri MA, Azadnajafabad S, Moghaddam SS, Eslami M, Rashidi MM, Naderian M, Esfahani Z, Ahmadi N, Rezaei N, Fateh SM, Kompani F, Larijani B, Farzadfar F. The global, regional, and national burden and quality of care index of kidney cancer; a global burden of disease systematic analysis 1990-2019. Int J Qual Health Care 2024; 36:mzad113. [PMID: 38183265 DOI: 10.1093/intqhc/mzad113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/28/2023] [Accepted: 01/02/2024] [Indexed: 01/07/2024] Open
Abstract
Kidney cancer (KC) is a prevalent cancer worldwide. The incidence and mortality rates of KC have risen in recent decades. The quality of care provided to KC patients is a concern for public health. Considering the importance of KC, in this study, we aim to assess the burden of the disease, gender and age disparities globally, regionally, and nationally to evaluate the quality and inequities of KC care. The 2019 Global Burden of Disease study provides data on the burden of the KC. The secondary indices, including mortality-to-incidence ratio, disability-adjusted life years -to-prevalence ratio, prevalence-to-incidence ratio, and years of life lost-to-years lived with disability ratio, were utilized. These four newly merged indices were converted to the quality-of-care index (QCI) as a summary measure using principal component analysis. QCI ranged between 0 and 100, and higher amounts of QCI indicate higher quality of care. Gender disparity ratio was calculated by dividing QCI for females by males to show gender inequity. The global age-standardized incidence and mortality rates of KC increased by 29.1% (95% uncertainty interval 18.7-40.7) and 11.6% (4.6-20.0) between 1990 and 2019, respectively. Globally, the QCI score for KC increased by 14.6% during 30 years, from 71.3 to 81.6. From 1990 to 2019, the QCI score has increased in all socio-demographic index (SDI) quintiles. By 2019, the highest QCI score was in regions with a high SDI (93.0), and the lowest was in low SDI quintiles (38.2). Based on the World Health Organization regions, the QCI score was highest in the region of America, with Canada having the highest score (99.6) and the lowest in the African Region, where the Central African Republic scored the lowest (17.2). In 1990, the gender disparity ratio was 0.98, and in 2019, it was 0.97 showing an almost similar QCI score for females and males. Although the quality of care for KC has improved from 1990 to 2019, there is a significant gap between nations and different socioeconomic levels. This study provides clinicians and health authorities with a global perspective on the quality of care for KC and identifies the existing disparities.
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Affiliation(s)
| | - Erfan Ghasemi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
| | - Mohammad Amin Khadembashiri
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
| | - Sina Azadnajafabad
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
| | - Sahar Saeedi Moghaddam
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
- Global Cooperation and Social Cohesion, The Global Health Economy, Kiel Institute for the World Economy, Hindenburgufer 66 24105 Kiel Germany, Kiel 24148, Germany
| | - Mohamad Eslami
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
| | - Mohammad-Mahdi Rashidi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
| | - Mohammadreza Naderian
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
- Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, North Kargar-Ave, Tehran, Tehran, Iran 1995614331, Iran
| | - Zahra Esfahani
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
- Department of Biostatistics, University of Social Welfare and Rehabilitation Sciences, kodakyar Ave., daneshjo Blvd.,Evin, Tehran, Tehran, Iran 1985713871, Iran
| | - Naser Ahmadi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
| | - Nazila Rezaei
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
| | - Sahar Mohammadi Fateh
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
| | - Farzad Kompani
- Division of Hematology and Oncology, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Children's Medical Center, Dr Gharib St, Keshavarz Blvd, Tehran, Iran, Tehran, Tehran, Iran 1419733151, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, NO 10, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Iran, Tehran 1411713137, Iran
| | - Farshad Farzadfar
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Tehran, Iran 1411713119, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, NO 10, Jalal-AL-Ahmad St., Chmaran HWY., Tehran, Iran, Tehran 1411713137, Iran
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Radkhah H, Omidali M, Hejrati A, Bahri RA, Arefi S, Behzadi A, Eslami M, Khadembashiri M, Khadembashiri M, Najafirashed M, Amiri BS. Correlations of Long COVID Symptoms and Inflammatory Markers of Complete Blood Count (CBC): A Cross-sectional Study. J Community Hosp Intern Med Perspect 2023; 13:112-119. [PMID: 38596549 PMCID: PMC11000855 DOI: 10.55729/2000-9666.1259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 04/11/2024] Open
Abstract
Background Long-COVID refers to lasting unspecific symptoms like fatigue, decreased concentration and sleep issues after infection which persist for at least three months and cannot be attributed to other causes. Previous studies surveyed the association between inflammatory markers like C - reactive protein (CRP) at hospital admission and long-COVID symptoms in the preceding months. Post-COVID syndrome can affect one-third of patients. Thus early diagnosis can assist in reducing burdens on public health. We attempted to see any correlations between complete blood count (CBC) markers (like red blood cell (RBC), white blood cell (WBC), Neutrophil to lymphocyte ratio (NLR), etc.) at hospital admission and long COVID symptoms at a 6-month follow-up. Methods 167 patients (44.9% females, mean age 49 years old) answered semi-structural interviews through telemedicine which focused on the three prominent symptoms: fatigue, loss of concentration and decreased libido. Results: Two third of patients have symptoms of long COVID and others do not have. NLR in the symptomatic group was statically higher. Patients who underwent decreased libido at a 6-month follow-up had significantly more severe lymphopenia (p = 0.028) and higher NLR values (p-value = 0.007). Poor mental concentration is associated with high WBC in numbers and polymorphonuclear (PMN) count. Other symptoms do not correlate with blood markers. Conclusion Utilizing available data like CBC can help predict the upcoming symptoms of previously hospitalized patients and further measures like rehabilitation. Additional investigations should be done on the effect of COVID vaccination on converting long COVID. Different variants of the virus may have different results.
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Affiliation(s)
- Hanieh Radkhah
- Department of Internal Medicine, School of Medicine, Sina Hospital, Tehran University of Medical Sciences, Tehran,
Iran
| | - Mehrnia Omidali
- School of Medicine, Hazrat-e Rasool General Hospital, Iran University of Medical Science, Tehran,
Iran
| | - Alireza Hejrati
- Department of Internal Medicine, School of Medicine, Hazrat-e Rasool General Hospital, Iran University of Medical Sciences, Tehran,
Iran
| | - Razman A. Bahri
- School of Medicine, Tehran University of Medical Sciences, Tehran,
Iran
| | - Sara Arefi
- School of Medicine, Hazrat-e Rasool General Hospital, Iran University of Medical Science, Tehran,
Iran
| | - Amirhossein Behzadi
- School of Medicine, Hazrat-e Rasool General Hospital, Iran University of Medical Science, Tehran,
Iran
| | - Mohamad Eslami
- Students’ Scientific Research Center, Tehran University of Medical Sciences, Tehran,
Iran
| | | | | | - Maryam Najafirashed
- School of Medicine, Hazrat-e Rasool General Hospital, Iran University of Medical Science, Tehran,
Iran
| | - Bahareh S. Amiri
- Department of Internal Medicine, School of Medicine, Hazrat-e Rasool General Hospital, Iran University of Medical Sciences, Tehran,
Iran
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Radkhah H, Mansouri ES, Rahimipour Anaraki S, Gholizadeh Mesgarha M, Sheikhy A, Khadembashiri MM, Khadembashiri MA, Eslami M, Mahmoodi T, Inanloo B, Pour Mohammad A. Predictive value of hematological indices on incidence and severity of pulmonary embolism in COVID-19 patients. Immun Inflamm Dis 2023; 11:e1012. [PMID: 37773719 PMCID: PMC10540144 DOI: 10.1002/iid3.1012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/28/2023] [Accepted: 08/31/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUND Pulmonary thromboembolism (PTE) is a common complication of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which raises the COVID-19 disease's fatality rate from 3% to 45%. Nevertheless, due to fairly indistinguishable clinical symptoms and a lack of validated clinical prediction models, PTE diagnosis in COVID-19 patients is challenging. This study aims to investigate the applicability of hematological indices to predict PTE incidence and its severity in SARS-CoV-2 patients. METHODS A retrospective cohort study was conducted on hospitalized patients with a confirmed diagnosis of SARS-CoV-2 infection who underwent CT angiography to assess probable PTE in them. The correlation between complete blood count parameters 1 day before CT angiography and CT angiography outcomes, and simplified pulmonary embolism severity index (s-PESI) was investigated. RESULTS We discovered that among individuals with a probable PTE, males and those with higher platelet-to-lymphocyte (PLR) and neutrophil-to-lymphocyte (NLR) ratios had a greater likelihood of PTE incidence (p < .001, .027, and .037, respectively). PLR was a significant and independent predictor of PTE with a p value of .045. Moreover, a higher neutrophil count was associated with a higher s-PESI score in COVID-19 patients developing PTE (p: .038). CONCLUSIONS Among hematological indices, NLR and more precisely PLR are cost-effective and simply calculable markers that can assist physicians in determining whether or not COVID-19 patients with clinically probable PTE require CT angiography and the higher neutrophil count can be employed as an indicator of PTE severity in COVID-19 patients. Further large multicenter and prospective studies are warranted to corroborate these observations.
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Affiliation(s)
- Hanieh Radkhah
- Department of Internal Medicine, School of Medicine, Sina HospitalTehran University of Medical Sciences (TUMS)TehranIran
| | - Ensieh Sadat Mansouri
- Department of Internal Medicine, School of Medicine, Sina HospitalTehran University of Medical Sciences (TUMS)TehranIran
| | | | | | - Ali Sheikhy
- Students' Scientific Research CenterTehran University of Medical Sciences (TUMS)TehranIran
| | | | | | - Mohamad Eslami
- Students' Scientific Research CenterTehran University of Medical Sciences (TUMS)TehranIran
| | - Tara Mahmoodi
- Students' Scientific Research CenterTehran University of Medical Sciences (TUMS)TehranIran
| | - Behnaz Inanloo
- Sina HospitalTehran University of Medical Sciences (TUMS)TehranIran
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Karbalaei M, Keikha M, Kobyliak N, Khatib Zadeh Z, Yousefi B, Eslami M. Alleviation of halitosis by use of probiotics and their protective mechanisms in the oral cavity. New Microbes New Infect 2021; 42:100887. [PMID: 34123388 PMCID: PMC8173312 DOI: 10.1016/j.nmni.2021.100887] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/19/2021] [Accepted: 04/19/2021] [Indexed: 02/06/2023] Open
Abstract
Regarding the relation of halitosis with oral infections and its effects on social relations between humans, the present study investigated the positive effects of probiotics on prevention or treatment of halitosis. The causative agents of halitosis are volatile sulphur compounds (VSCs), and halitosis is divided into oral and non-oral types according to the source of the VSCs. H2S and CH3SH are two main halitosis metabolites-produced following the degradation of proteins by bacteria in the mouth-however, CH3SCH3 has a non-oral origin, and is a blood neutral molecule. Just as much as halitosis is important in medicine, its psychological aspects are also considered, which can even lead to suicide. Today, the use of probiotics as a new therapeutic in many roles is in progress. Most probiotics are used for the treatment of gastrointestinal tract disorders, but various studies on the alleviation of halitosis by use of probiotics have reported satisfactory results. The genera Lactobacillus, Streptococcus and Weissella are among the most useful probiotics for the prevention or treatment of halitosis in the oral cavity.
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Affiliation(s)
- M. Karbalaei
- Department of Microbiology and Virology, School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran
| | - M. Keikha
- Department of Microbiology and Virology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - N.M. Kobyliak
- Department of Endocrinology, Bogomolets National Medical University, Kyiv, Ukraine
| | - Z. Khatib Zadeh
- School of Dentistry, Semnan University of Medical Sciences, Semnan, Iran
| | - B. Yousefi
- Department of Immunology, Semnan University of Medical Sciences, Semnan, Iran
| | - M. Eslami
- Department of Bacteriology and Virology, Semnan University of Medical Sciences, Semnan, Iran
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Eslami M, Bahar A, Hemati M, Rasouli Nejad Z, Mehranfar F, Karami S, Kobyliak NM, Yousefi B. Dietary pattern, colonic microbiota and immunometabolism interaction: new frontiers for diabetes mellitus and related disorders. Diabet Med 2021; 38:e14415. [PMID: 33025587 DOI: 10.1111/dme.14415] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/10/2020] [Accepted: 09/20/2020] [Indexed: 12/18/2022]
Abstract
In this review, the numerous possible mechanisms that provide supportive evidence for how colonic dysbiosis denotes metabolic dysfunction, dysregulates glucose homeostasis and leads to diabetes mellitus and related metabolic disorders are defined. Information was gathered from articles identified by systematic reviews and searches using Google, PubMed and Scopus. The composition of the colonic microbiota plays an integral role in maintaining host homeostasis by affecting both metabolic activities and underlying functional gene transcription in individuals with diabetes and related metabolic disorders. Increased colonic microbiome-derived concentrations of lipopolysaccharides, also known as 'metabolic endotoxaemia', as well as alterations in bile acid metabolism, short-chain fatty acids, intestinal hormones and branched-chain amino acid secretion have been associated with the diverse production of pro-inflammatory cytokines and the recruitment of inflammatory cells. It has been shown that changes to intestinal bacterial composition are significant even in early childhood and are associated with the pathogenesis of both types of diabetes. We hope that an improved understanding of related mechanisms linking the colonic microbiome with glucose metabolism might provide for innovative therapeutic approaches that would bring the ideal intestinal ecosystem to a state of optimal health, thus preventing and treating diabetes and related metabolic disorders.
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Affiliation(s)
- M Eslami
- Cancer Research Center, Semnan, Iran
| | - A Bahar
- Department of Biochemistry, Semnan, Iran
| | - M Hemati
- Department of Immunology, Semnan, Iran
| | | | - F Mehranfar
- Student Research Committee, Semnan University of Medical Sciences, Semnan, Iran
| | - S Karami
- Department of Biochemistry, Semnan, Iran
| | - N M Kobyliak
- Department of Endocrinology, Bogomolets National Medical University, Kyiv, Ukraine
| | - B Yousefi
- Department of Immunology, Semnan, Iran
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Le D, Eslami M, Li H, Hajjaj O, Chia S, Simmons C. Does the time from diagnostic biopsy to neoadjuvant chemotherapy affect the rate of pathologic complete response in stages I-III breast cancer? ACTA ACUST UNITED AC 2020; 27:e265-e270. [PMID: 32669932 DOI: 10.3747/co.27.5907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background Studies in the adjuvant setting suggest that the timing of breast cancer diagnosis, surgery, and chemotherapy might affect outcomes. In the neoadjuvant setting, data exploring whether expeditious neoadjuvant chemotherapy (nac) after diagnosis improves the rate of pathologic complete response (pcr) in breast cancer are limited. Methods Patients who received nac and completed treatment between May 2012 and December 2018 were identified from a prospectively collected database at BC Cancer. Time from diagnosis to start of nac was calculated. Patients were grouped into those who did and did not experience a pcr, and those who started nac within 28 days or after 28 days [time to nac (ttn)]. The association between pcr and ttn was tested using logistic regression. Results In the time period studied, 482 patients who received nac were identified. After exclusions, 421 patients met the eligibility criteria. Median time from biopsy to chemotherapy was 33 days (range: 7-140 days). In 149 patients (35.4%), nac was received within 28 days of diagnosis (range: 7-28 days); in 272 patients (64.6%), it was received after more than 28 days (range: 29-140 days). The overall pcr rate was 31.8%. A trend toward a higher pcr rate, although not statistically significant, was observed in the group that initiated chemotherapy within 28 days (34.2% vs. 30.5%, p = 0.43). In the logistic regression model, rates of pcr were associated with receptor status, but not age, stage, or ttn. Conclusions In the neoadjuvant setting, we observed no difference in the rate of pcr in patients who started nac within 28 days or after 28 days.
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Affiliation(s)
- D Le
- BC Cancer, Fraser Valley Cancer Centre, Surrey, BC.,University of British Columbia, Vancouver, BC
| | - M Eslami
- University of British Columbia, Vancouver, BC
| | - H Li
- Yale School of Public Health, New Haven, CT, U.S.A
| | - O Hajjaj
- BC Cancer, Fraser Valley Cancer Centre, Surrey, BC.,University of British Columbia, Vancouver, BC.,Yale School of Public Health, New Haven, CT, U.S.A.,BC Cancer, Vancouver Centre, Vancouver, BC
| | - S Chia
- University of British Columbia, Vancouver, BC.,BC Cancer, Vancouver Centre, Vancouver, BC
| | - C Simmons
- University of British Columbia, Vancouver, BC.,BC Cancer, Vancouver Centre, Vancouver, BC
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Moghaddam FM, Eslami M, Siahpoosh A, Hoda G. Diastereoselective construction of a functionalized dihydro-pyridazine-based spirooxindole scaffold via C-3 umpolung of isatin N,N′-cyclic azomethine imine. NEW J CHEM 2019. [DOI: 10.1039/c8nj06345a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study demonstrates an abnormal [3+3] tandem Michael addition/N-cyclization of isatin N,N′-cyclic azomethine imine 1,3-dipoles and 2-arylidene malononitrile that diastereoselectively construct a dihydro-pyridazine-based spirooxindole.
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Affiliation(s)
- F. Matloubi Moghaddam
- Laboratory of Organic Synthesis and Natural Products
- Department of Chemistry
- Sharif University of Technology
- Tehran
- Iran
| | - M. Eslami
- Laboratory of Organic Synthesis and Natural Products
- Department of Chemistry
- Sharif University of Technology
- Tehran
- Iran
| | - A. Siahpoosh
- Laboratory of Organic Synthesis and Natural Products
- Department of Chemistry
- Sharif University of Technology
- Tehran
- Iran
| | - G. Hoda
- Laboratory of Organic Synthesis and Natural Products
- Department of Chemistry
- Sharif University of Technology
- Tehran
- Iran
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Shafiei M, Ghasemian A, Eslami M, Nojoomi F, Rajabi-Vardanjani H. Risk factors and control strategies for silicotuberculosis as an occupational disease. New Microbes New Infect 2019; 27:75-77. [PMID: 30622714 PMCID: PMC6319297 DOI: 10.1016/j.nmni.2018.11.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/02/2018] [Accepted: 11/07/2018] [Indexed: 12/12/2022] Open
Abstract
Silicotuberculosis is critical in community settings among workers and employees exposed to silica dust. Older age of entry (>30 years), male sex, infection with human immunodeficiency virus (HIV), exposure duration, smoking, chronic obstructive pulmonary disease, migration, the severity of the silicosis and the intensity of the exposure are potential risk factors. Lack of timely diagnosis and treatment for tuberculosis (TB) may also raise the rate of infection; previous treatment of TB is possibly associated with the development of silicotuberculosis in more than half of patients, increasing with age (>40 years). Identification of risk factors benefits not only the academic research community, but also the workers or employees and policy making. Some strategies can be implemented, such as controlling or reducing exposure to silica dust, ensuring continuity of treatment of TB or extended anti-TB treatment, management of the situation by occupational health professionals, prevention of oscillating migration, providing workers with compensation, training and education in occupational health, improving the quality of life of miners and workers, intensive medical surveillance and TB screening in routine health check ups, and policy making for higher immunity to inhibit inhalation of dust by workers or employees.
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Affiliation(s)
- M. Shafiei
- )Department of Microbiology, Pasteur Institute of Iran, Tehran, Iran
| | - A. Ghasemian
- )Department of Microbiology, Fasa University of Medical Sciences, Fasa, Iran
| | - M. Eslami
- )Department of Microbiology and Virology, Semnan University of Medical Sciences, Semnan, Iran
| | - F. Nojoomi
- )Microbiology Department, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
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Dadfar M, Moghaddasi M, Mohebi N, Mohaghegh F, Eslami M. Relationship Between Love of Life and Happiness in Iranian Patients with Multiple Sclerosis. Mult Scler Relat Disord 2018. [DOI: 10.1016/j.msard.2018.10.071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Taghipourdarzinaghibi M, Hosseinzadeh S, Eslami M. Comparisons of bracing and patella taping on knee three-dimensional kinematics of women with patellofemoral pain syndrome in stance phase of running. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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12
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Ghanbari N, Ghafuri H, Zand H, Eslami M. Ball-Milling Promoted Monobromination Reactions: One-pot Regioselective Synthesis of Aryl Bromides and α-Bromoketones by NBS and Recyclable MCM-41-SO3H at Room Temperature. SynOpen 2017. [DOI: 10.1055/s-0036-1590959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
An effective approach to monobromination reactions utilizing room temperature ball-milling is introduced for the synthesis of aryl bromides and bromoketones with N-bromosuccinimide (NBS) and MCM-41-SO3H. Advantages of this technique are short reaction times and high regioselectivity. In contrast to other techniques using microwaves, ultrasound, or ionic liquids, handling of sensitive materials is possible and furthermore, this method has advantages over other solvent-free techniques that require a higher reaction temperature for high yield of products.
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13
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Eslami M, Ghasemiyan H, Zadeh Hashem E. Semen supplementation with palmitoleic acid promotes kinematics, microscopic and antioxidative parameters of ram spermatozoa during liquid storage. Reprod Domest Anim 2016; 52:49-59. [DOI: 10.1111/rda.12802] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 08/19/2016] [Indexed: 11/29/2022]
Affiliation(s)
- M Eslami
- Department of Theriogenology; Faculty of Veterinary Medicine; Urmia University; Urmia Iran
| | - H Ghasemiyan
- Department of Theriogenology; Faculty of Veterinary Medicine; Urmia University; Urmia Iran
| | - E Zadeh Hashem
- Department of Basic Sciences; Faculty of Veterinary Medicine; Urmia University; Urmia Iran
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Tan T, Eslami M, Rybin D. Blood Transfusion Is Associated With Increased Risk of Perioperative Complications and Prolonged Hospital Duration of Stay Among Patients Undergoing Amputation. J Vasc Surg 2016. [DOI: 10.1016/j.jvs.2016.05.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Eslami M, Ghaniei A, Mirzaei Rad H. Effect of the rooster semen enrichment with oleic acid on the quality of semen during chilled storage. Poult Sci 2016; 95:1418-24. [DOI: 10.3382/ps/pew041] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 01/07/2016] [Indexed: 11/20/2022] Open
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Abstract
Abstract
51Cr (T1/2 = 27.7 d), which decays via electron capture (100 %) with 320 keV gamma emission (9.8 %), is a radionuclide with still a large application in biological studies. In this work, ALICE/ASH and TALYS nuclear model codes along with some adjustments are used to calculate the excitation functions for proton, deuteron, α-particle and neutron induced on various targets leading to the production of 51Cr radioisotope. The production yields of 51Cr from various reactions are determined using the excitation function calculations and stopping power data. The results are compared with corresponding experimental data and discussed from point of view of feasibility.
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Affiliation(s)
- T. Kakavand
- Department of Physics , Faculty of Science, Imam Khomeini International University, Qazvin , Iran
| | - M. Aboudzadeh
- Agricultural , Medical and Industrial Research School, Nuclear Science and Technology Research Institute, AEOI, Karaj , Iran
| | - Z. Farahani
- Department of Physics , Faculty of Science, University of Zanjan, Zanjan, Iran , E-mail:
| | - M. Eslami
- Department of Physics , Faculty of Science, University of Zanjan, Zanjan, Iran , E-mail:
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Eslami M, Sayyah M, Hajghassem M, Solaymani M. ISDN2014_0092: REMOVED: Lipopolysaccharide preconditioning reduces the effect of traumatic brain injury on pentylenetetrazole kindled rats. Int J Dev Neurosci 2015. [DOI: 10.1016/j.ijdevneu.2015.04.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- M. Eslami
- Department of PhysiologyParamedical Faculty of Shaheed Beheshti UniversityTehranIran
| | - M. Sayyah
- Department of Physiology and PharmacologyPasteur Institute of IranTehranIran
| | - M. Hajghassem
- Department of NeuroscienceSchool of Advanced Technology in MedicineTehran University of Medical ScienceTehranIran
| | - M. Solaymani
- Department of AnatomyCellular and Molecular Research CenterIran University of Medical ScienceTehranIran
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Kakavand T, Mirzaii M, Eslami M, Karimi A. Nuclear model calculation and targetry recipe for production of 110mIn. Appl Radiat Isot 2015; 104:60-6. [DOI: 10.1016/j.apradiso.2015.06.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Revised: 05/31/2015] [Accepted: 06/16/2015] [Indexed: 11/26/2022]
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Aslahi-Shahri BM, Rahmani R, Chizari M, Maralani A, Eslami M, Golkar MJ, Ebrahimi A. A hybrid method consisting of GA and SVM for intrusion detection system. Neural Comput Appl 2015. [DOI: 10.1007/s00521-015-1964-2] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ayazi K, Khabaz A, Ayazi L, Ghorbani B, Eslami M, Ebrahimi M. Changes in antibiotic use in a general surgery unit over a 5-year period. East Mediterr Health J 2015; 21:134-9. [PMID: 25876825 DOI: 10.26719/2015.21.2.134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2011] [Accepted: 02/21/2012] [Indexed: 11/09/2022]
Abstract
Concerns have been expressed about the overuse of antibiotics in inpatient settings. We compared the pattern of antibiotic use in 2010 in a surgical unit of a university hospital in the Islamic Republic of Iran with similar data from 2006. Defined daily doses per 100 bed-days (DBD) were calculated. Overall use of antibiotics in our surgical unit increased significantly from a mean of 4.9 (SD 5.1) DBD in 2006 to 7.7 (SD 10.3) DBD in 2010. This increase was mainly due to increases in the use of antibiotics for treatment of infections; the prophylactic use of antibiotics did not show a significant increase. There was an increase in the consumption of ceftriaxone, imipenem, cefalotin, metronidazole and vancomycin, a decrease in the use of erythromycin and ceftazidime and no change in the use of ciprofloxacin and clindamycin. Ceftriaxone showed the greatest increase (5.1-fold) and erythromycin the sharpest decrease (8-fold) in use.
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Affiliation(s)
- K Ayazi
- Department of Surgery, Imam Hossein University Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - A Khabaz
- Department of Surgery, Imam Hossein University Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - L Ayazi
- Department of Surgery, Imam Hossein University Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran; School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - B Ghorbani
- Department of Physiology, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - M Eslami
- Department of Surgery, Imam Hossein University Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - M Ebrahimi
- Department of Surgery, Imam Hossein University Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
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Vahabpour R, Aghasadeghi MR, Goudarzifar F, Keyvani H, Ataei- Pirkooh A, Monavari SH, Eslami M. Assessment of humoral immune response of a Cytomegalovirus DNA-vaccine candidate in BALB/c mice. vacres 2015. [DOI: 10.18869/acadpub.vacres.2.3.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Mahmoodabadi S, Ahmadian A, Abolhasani M, Eslami M, Bidgoli J. ECG Feature Extraction Based on Multiresolution Wavelet Transform. Conf Proc IEEE Eng Med Biol Soc 2012; 2005:3902-5. [PMID: 17281084 DOI: 10.1109/iembs.2005.1615314] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In this work, we have developed and evaluated an electrocardiogram (ECG) feature extraction system based on the multi-resolution wavelet transform. ECG signals from Modified Lead II (MLII) are chosen for processing. The result of applying two wavelet filters (D4 and D6) of different length on the signal is compared. The wavelet filter with scaling function more closely to the shape of the ECG signal achieved better detection. In the first step, the ECG signal was de-noised by removing the corresponding wavelet coefficients at higher scales. Then, QRS complexes are detected and each complex is used to locate the peaks of the individual waves, including onsets and offsets of the P and T waves which are present in one cardiac cycle. We evaluated the algorithm on MIT-BIH Database, the manually annotated database, for validation purposes. The proposed QRS detector achieved sensitivity of 75. 2 % 18 . 99 .. and a positive predictivity of 45 . 4 % 00 . 98 .. over the validation database.
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Affiliation(s)
- S Mahmoodabadi
- Tehran University of Medical Sciences (TUMS), Tehran, Iran; Research Center for Science and Technology in Medicine (RCSTIM), Tehran, Iran.
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Farrokh Eslamlou H, Eslami M, Abdi Rad I, Eilkhanizadeh B. Evaluating success of no-scalpel vasectomy by ligation and excision with fascial interposition in a large prospective study in Islamic Republic of Iran. East Mediterr Health J 2011. [DOI: 10.26719/2011.17.6.517] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Farrokh-Eslamlou HR, Eslami M, Abdi-Rad I, Eilkhanizadeh B. Evaluating success of no-scalpel vasectomy by ligation and excision with fascial interposition in a large prospective study in Islamic Republic of Iran. East Mediterr Health J 2011; 17:517-522. [PMID: 21796970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The aims of this prospective, non-comparative study were to determine time to azoospermia and vasectomy success rate based on the results of semen analysis. A total of 334 men seeking vasectomy at a clinic in Urmia city, Islamic Republic of Iran were followed bi-weekly up to 24 weeks after vasectomy or until azoospermia was confirmed via semen analysis. The cumulative life table rate for azoospermia was 93/100 men (95% CI: 88.1 to 97.9). The median time to azoospermia was 10 weeks. By week 24 of follow-up, 3.3% of participants had failed to achieve azoospermia. One pregnancy was reported during the study period and attributed to user failure. The results suggest that men can begin to rely on vasectomy for contraception 12 weeks after no-scalpel vasectomy using fascial interposition performed by an experienced surgeon.
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Affiliation(s)
- H R Farrokh-Eslamlou
- Reproductive Health Research Centre, Urmia University of Medical Sciences, Urmia, Islamic Republic of Iran
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Borazjaniz M, Eslami M, Bojarpour M, Chaji M, Fayazi J. The Effect of Clove and Oregano on Economic Value of Broiler The Effect of Clove and Oregano on Economic Value of Broiler Chickens Diet under Hot Weather of Khuzestan. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/javaa.2011.169.173] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Masoudi A, Bojarpour M, Chaji M, Eslami M, Mirzadeh K. Economic Value of Date Pits Replaced with Maize in Broiler Chicken Diet. ACTA ACUST UNITED AC 2010. [DOI: 10.3923/javaa.2010.1578.1581] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Eslami M, Mashyekhee M, Kasiri H. Evaluation of feeding steam treated bagasse pith on milk production and blood parameters of dairy buffaloes. Italian Journal of Animal Science 2007. [DOI: 10.4081/ijas.2007.s2.469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Eslami M, Damavandi M, Allard P. Foot joints and tibial kinematic coupling patterns during stance phase of barefoot versus shod running. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)83648-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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31
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Eslami M, Maleki A, Eslami G, Fallah F. 1P-0240 Detection of cytomegalovirus in atherosclerotic plaques in patients dead with coronary artery disease (CAD). ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90311-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Dorent R, Tezenas S, Ghossoub JJ, Leger P, Lendvai N, Vaissier E, Levasseur JP, Eslami M, Pavie A, Gandjbakhch I. Long-term use of cyclosporine in cardiac transplantation: the Pitié experience. Transplant Proc 2002; 34:831-3. [PMID: 12034199 DOI: 10.1016/s0041-1345(01)02926-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- R Dorent
- Hôpital Pitié-Salpêtrière, Paris, France.
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Tadayon F, Massoumi A, Eslami M. Determination of Vanadium, Nickel, and Iron in Crude Oil by High-Performance Liquid Chromatography. J Chromatogr Sci 1999. [DOI: 10.1093/chrsci/37.10.371] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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34
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Miran Beigi AA, Teymouri M, Eslami M, Farazmand M. Determination of trace sulfur in organic compounds by activated Raney nickel desulfurization method with non-dispersive gas detection system. Analyst 1999. [DOI: 10.1039/a809599j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kasaoka S, Son R, Eslami M, Pierman C, Currier J, Yeatman LA, Tobis JM. Comparison of the sheath delivery system versus bare stenting for coronary stent implantation. Cathet Cardiovasc Diagn 1998; 43:386-94; discussion 395-6. [PMID: 9554762 DOI: 10.1002/(sici)1097-0304(199804)43:4<386::aid-ccd5>3.0.co;2-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Outside the United States, Palmaz-Schatz coronary stents are implanted by hand-crimping the stent to a high pressure balloon without the use of a protective sheath. This lowers the delivery profile, increases the ease of deployment, and ensures that the postdilatation balloon is centered on the stent. To assess this bare stenting technique, 209 patients were retrospectively analyzed: 92 patients (107 lesions) with the sheath protected stent delivery system (SDS) and 117 patients (150 lesions) with the bare stent approach. The number of balloons used per lesion in the bare stent group was significantly less than in the SDS group (1.9 +/- 0.6 vs. 3.8 +/- 1.2, P < 0.0001). In addition, the procedure time in the bare stent group was significantly shorter than in the SDS group (106 +/- 55 vs. 134 +/- 60 min, P = 0.001). There was no difference in frequency of adverse events or stent displacement during the procedure. The bare stenting technique decreases the procedure time, reduces the number of balloons used, and is as safe as the SDS approach.
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Affiliation(s)
- S Kasaoka
- Department of Medicine, University of California, Irvine, Orange 92868-3298, USA
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Andrade FR, Eslami M, Elias J, Kinoshita O, Nakazato Y, Marcus FI, Frank R, Tonet J, Fontaine G. Diagnostic clues from the surface ECG to identify idiopathic (fascicular) ventricular tachycardia: correlation with electrophysiologic findings. J Cardiovasc Electrophysiol 1996; 7:2-8. [PMID: 8718978 DOI: 10.1111/j.1540-8167.1996.tb00454.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
INTRODUCTION An RS interval > 100 msec in precordial leads has been recently described for the diagnosis of ventricular tachycardia (VT). The aim of this study was to assess the value of this criterion when applied to patients with right bundle branch block pattern, left-axis deviation (fascicular) VT sensitive to verapamil. METHODS AND RESULTS Eleven patients (mean age 31 +/- 11 years; range 16 to 51) had a mean heart rate of 164 +/- 37 beats/min (range 107 to 230) during VT. The QRS complex axis was -92 degrees +/- -15 degrees (range -80 to -115). The mean QRS duration was 121 +/- 9 msec (range 105 to 140). The mean RS interval was 67 +/- 9 msec (range 60 to 80). Fusion beats were present in 2 patients (18%), and AV dissociation confirmed by electrophysiologic study was found on ECG in 8 (73%) of 11. During tachycardia, the QRS-H' interval was 19 +/- 10 msec (range 10 to 30) in 6 of 11 patients. In seven patients, a fast, unique (or double) presystolic potential lasting 32 msec (range 12 to 40) occurring before the onset of the QRS complex was found at the site of origin of VT, localized in the inferior apical left ventricular septum. In all cases, VT was successfully treated by catheter ablation. CONCLUSION A wide QRS complex tachycardia with right bundle branch block and left-axis deviation sensitive to verapamil observed in a young patient without structural heart disease should not be confused with supraventricular tachycardia with aberrancy but rather suggests the presence of fascicular VT. As opposed to VT associated with structural heart disease, the RS interval is < 80 msec in all precordial leads in all cases. Independent of this parameter, AV dissociation detectable on surface ECG has a sensitivity of 73%, which increases to 82% in the presence of fusion beats.
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Affiliation(s)
- F R Andrade
- Service de Rythmologie et de Stimulation Cardiaque, Hopital Jean Rostand, Ivry sur Seine, France
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Dorent R, Eslami M, Nataf P, Escolano S, Leger P, Golmard JL, Pavie A, Gandjbakhch I. Predictors of late death in 5-year survivors of heart transplantation. Transplant Proc 1995; 27:1687-8. [PMID: 7725452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- R Dorent
- Department of Thoracic and Cardiovascular Surgery, CHU Pitié Salpetriere, Paris, France
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Eslami M, Stuart JD, Chen KH. Improvement in the resolution of o-phthalaldehyde derivatized amino acids by applying gradient steepness optimization to five reversed-phase columns of different lengths and particle sizes. J Chromatogr A 1987; 411:121-38. [PMID: 3443620 DOI: 10.1016/s0021-9673(00)93964-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Twenty-two o-phthalaldehyde (OPA) derivatized amino acids were separated on five different reversed-phase, octadecyl columns. Each column was packed with the same type of spherical silica on which matched bonding chemistry had been performed. Columns of 250, 150 or 50 mm x 4.5 mm I.D. were packed with 5 microns particles, and columns of 100 or 50 mm x 4.5 mm I.D. were packed with 3 microns particles. Snyder's linear solvent strength gradient optimization method was used to determine the optimum gradient steepness by maximizing the resolution of four pairs of adjacent OPA-derivatized amino acids. An asymptotic dependence of improvement in resolution with increase in gradient time was obtained for each pair of compounds on each column. For short (50 mm) columns, resolution of very closely eluting compounds required the use of gradient steepness parameters as low as 0.05 and 0.02, due to the low efficiencies intrinsic to these short column lengths.
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Affiliation(s)
- M Eslami
- Department of Chemistry, University of Connecticut, Storrs 06268
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Eslami M, Seigel E. The HMO movement in Connecticut. Conn Med 1979; 43:645-7. [PMID: 498791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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