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Kurukulaaratchy RJ, Zhang H, Raza A, Patil V, Karmaus W, Ewart S, Arshad SH. The diversity of young adult wheeze: a cluster analysis in a longitudinal birth cohort. Clin Exp Allergy 2014; 44:724-35. [PMID: 24654674 DOI: 10.1111/cea.12306] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 01/02/2014] [Accepted: 01/27/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Cluster analyses have enhanced understanding of the heterogeneity of both paediatric and adult wheezing. However, while adolescence represents an important transitional phase, the nature of young adult wheeze has yet to be clearly characterised. OBJECTIVES To use cluster analysis to define, for the first time, clinically relevant young adult wheeze clusters in a longitudinal birth cohort. METHODS K-means cluster analysis was undertaken among 309 currently wheezing subjects at 18 years in the Isle of Wight birth cohort (N = 1456). Thirteen disease-characterising clustering variables at 18 years were used. Resulting clusters were then further characterised by severity indices plus potential risk factors for wheeze development throughout the 1st 18 years of life. RESULTS Six wheeze clusters were identified. Cluster 1 (12.3%) male-early-childhood-onset-atopic-wheeze-with-normal-lung-function had male predominance, normal spirometry, low bronchodilator reversibility (BDR), intermediate bronchial hyper-responsiveness (BHR), high atopy prevalence and more admissions. Cluster 2 (24.2%) early-childhood-onset-wheeze-with-intermediate-lung-function had no specific sex association, intermediate spirometry, BDR, BHR, more significant BTS step therapy and admissions. Cluster 3 (9.7%) female-early-childhood-onset-atopic-wheeze-with-impaired-lung-function showed female predominance, high allergic disease comorbidity, more severe BDR and BHR, greatest airflow obstruction, high smoking prevalence, higher symptom severity and admissions. Cluster 4 (19.4%) female-undiagnosed-wheezers had adolescent-onset non-atopic wheeze, low BDR and BHR, impaired but non-obstructed spirometry, high symptom frequency and highest smoking prevalence. Cluster 5 (24.6%) female-late-childhood-onset-wheeze-with-normal-lung-function showed no specific atopy association, normal spirometry, low BDR, BHR and symptom severity. Cluster 6 (9.7%) male-late-childhood-onset-atopic-wheeze-with-impaired-lung-function had high atopy and rhinitis prevalence, increased BDR and BHR, moderately impaired spirometry, high symptom severity and higher BTS step therapy. CONCLUSIONS AND CLINICAL RELEVANCE Young adult wheeze is diverse and can be classified into distinct clusters. More severe clusters merit attention and are associated with childhood onset, atopy, impaired lung function and in some, smoking. Smoking-associated undiagnosed wheezers also merit recognition. Better understanding of young adult wheeze could facilitate better later adult respiratory health.
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Raza A, Shabbir M, Khan M, Suleria H, Sultan S. Effect of Thermal Treatments on the Formation of Heterocyclic Aromatic Amines in Various Meats. J FOOD PROCESS PRES 2014. [DOI: 10.1111/jfpp.12242] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Raza M, Saleem M, Shah G, Khan I, Raza A. Exogenous application of glycinebetaine and potassium for improving water relations and grain yield of wheat under drought. JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION 2014:0-0. [PMID: 0 DOI: 10.4067/s0718-95162014005000028] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Kalkur S, Raza A, Richardson RE. Right upper quadrant pain? Think outside the liver: A case of diaphragmatic perihepatic endometriosis. J OBSTET GYNAECOL 2013; 33:743-4. [DOI: 10.3109/01443615.2013.813914] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Raza A, Mittal S, Sood GK. Interferon-associated retinopathy during the treatment of chronic hepatitis C: a systematic review. J Viral Hepat 2013; 20:593-9. [PMID: 23910642 DOI: 10.1111/jvh.12135] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 06/20/2013] [Indexed: 12/31/2022]
Abstract
The incidence of retinopathy in patients with chronic hepatitis C treated with interferon-based regimens has been variably reported in the literature. There is no consensus regarding ophthalmologic screening before and during treatment with interferon-based therapy. To assess the incidence of retinopathy in patients with chronic hepatitis C being treated with interferon-based regimens and estimate the rate of resolution. A systematic literature search was performed to locate all relevant publications. Pooled incidence of retinopathy was calculated in patients treated with interferon or pegylated interferon. We also estimated the rate of discontinuation of treatment and resolution after the treatment was stopped. A total of 21 studies fulfilled the inclusion criteria. The overall incidence of retinopathy using random effect model was 27.7% (95% confidence interval [CI] 20.9-34.5%). The pooled incidence of retinopathy in 10 studies that only used pegylated interferon was 20.9% (95% CI: 11.6-29.8). The incidence of retinopathy with pegylated interferon in diabetic and hypertensive patients (high-risk group) was 65.32% and 50.7%, respectively. This was significantly higher compared with the incidence of retinopathy (11.7%) in patients without these risk factors. Overall pooled estimate for the resolution of retinopathy was 87% (95% CI 75.7-98.4%). The rate of discontinuation of treatment was 6.3%. The incidence of retinopathy with pegylated interferon in patients without hypertension and diabetes is low, but the risk is higher in patients with diabetes and hypertension. Routine pretreatment fundoscopic screening may not be warranted in all patients and can be limited to the patients with these risk factors.
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Gilani SM, Raza A, Al-Khafaji BM. Ameloblastic fibrosarcoma: a rare malignant odontogenic tumor. Eur Ann Otorhinolaryngol Head Neck Dis 2013; 131:53-6. [PMID: 23845294 DOI: 10.1016/j.anorl.2013.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 01/22/2013] [Accepted: 03/02/2013] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Ameloblastic fibrosarcoma (AFS) is a rare malignant odontogenic tumor. It can arise de novo, however one-third of cases may arise from a recurrent ameloblastic fibroma, in which case they appear to present at an older age. CASE REPORT A 16-year-old female presented with one month history of right mandibular mass. Computerized tomography (CT) scan showed a large destructive mass. A biopsy of the mass was performed. Histologically, it consisted of a mixed epithelial-mesenchymal odontogenic neoplasm composed of benign islands of well-differentiated ameloblastic epithelium within a malignant fibrous stroma consisting of spindle cells or fibroblasts with a brisk mitotic activity. The malignant spindle cell proliferation showed positive staining with p-53 and a high proliferation index with ki-67. A diagnosis of AFS was rendered. CONCLUSION The differential diagnosis includes other odontogenic sarcomas, ameloblastic carcinosarcoma and spindle cell carcinoma. Treatment of choice is wide surgical excision, with long-term follow-up. Postoperative chemotherapy and radiotherapy has been used successfully in a few reported cases. AFS is a locally aggressive malignant tumor, with regional and distant metastases being uncommon.
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Odak S, Raza A, Shah N, Clayson A. Clinical efficacy and cost effectiveness of intraoperative cell salvage in pelvic trauma surgery. Ann R Coll Surg Engl 2013; 95:357-60. [PMID: 23838500 PMCID: PMC4165140 DOI: 10.1308/003588413x13629960045715] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2012] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Pelvic acetabular injuries are associated with significant blood loss. This is compounded by multiple surgical interventions including definitive fracture fixation, which put patients at further risk of postoperative transfusion. We use intraoperative cell salvage routinely as a blood conservation strategy to address this issue. This is a prospective evaluation of the clinical efficacy and cost effectiveness of using intraoperative cell salvage in patients with pelvic acetabular injuries. METHODS Data were collected prospectively for all the patients who underwent pelvic acetabular fracture fixation at our institution. A total of 30 patients (25 men, 5 women) with a mean age of 41 years (range: 31-79 years) were assessed over a period of 10 months. RESULTS The mean preoperative and postoperative haemoglobin levels were 11.8g/dl and 9.9g/dl respectively. The mean intraoperative blood loss was 1,232.5ml (range: 150-2,693ml). The mean amount of blood salvaged and retransfused through a cell saver was 388ml. Of the 30 patients, 14 (47%) required transfusion after surgery and 26 units of blood were transfused. In terms of cost effectiveness, a total of £2,572 in 30 patients or £86 per patient were saved. CONCLUSIONS We found intraoperative cell salvage to be clinically efficacious and cost effective in patients with pelvic acetabular injuries.
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Kailash K, Raza A, Mahalingam S, Talwalkar S. AB0296 Outcomes of universal-2 total wrist arthroplasty: Our experience at wrightington hospital. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Popa RF, Strobescu C, Baroi G, Raza A, Fotea V. Complex utrasound study of the atherosclerotic plaque. REVISTA MEDICO-CHIRURGICALA A SOCIETATII DE MEDICI SI NATURALISTI DIN IASI 2013; 117:424-430. [PMID: 24340526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
UNLABELLED Carotid surgery concept is wining ground both among neurologists who recommend and vascular surgeons who perform an increased number of interventions. Regardless of the technique, we are interested in the tendency of the plaque to grow and determine stenosis. Ultrasound (US) is 91-94% sensitive and 85-99% specific in detecting a significant stenosis of the internal carotid artery. AIM To establish a correlation between the preoperative US and intraoperative plaque characteristics in order to determine the restenosis rate. MATERIAL AND METHODS From January 1, 2012 to December 31, 2012, 70 consecutive patients were included in this study. Two groups were formed: 35 patients with stenotic ICA and 35 patients presenting stenosis at the femoral artery bifurcation (control group). The comparison between these two groups started from the premise of a similar pattern for internal carotid artery--deep femoral artery and external carotid artery- superficial femoral artery. US scans were performed on admission in all patients. All images were normalized and Gray Scale Median (GSM) was calculated. RESULTS Femoral plaque GSM values were higher in relation with hyperechogenicity highlighting the intensely calcified structure. Unstable plaques were more heterogenic, with higher transparency and lower GSM than stable plaques. This was the case of carotid plaques. During follow-up US revealed no restenosis. CONCLUSIONS Femoral bifurcation plaques are calcified and determine chronic ischemic symptoms, while carotid bifurcation plaques are unstable and determine cerebral symptoms. US remain the gold standard non-invasive technique both for screening and diagnosis and set the therapeutic coordinates.
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Roberts G, Zhang H, Karmaus W, Raza A, Scott M, Matthews S, Kurukulaaratchy RJ, Dean T, Arshad SH. Trends in cutaneous sensitization in the first 18 years of life: results from the 1989 Isle of Wight birth cohort study. Clin Exp Allergy 2013; 42:1501-9. [PMID: 22994347 DOI: 10.1111/j.1365-2222.2012.04074.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Skin prick testing (SPT) is fundamental to the practice of clinical allergy identifying relevant allergens and predicting the clinical expression of disease. There are only limited data on the natural history of SPT results over childhood and adolescence. OBJECTIVE We aimed to describe the natural history of SPT and patterns of sensitization over childhood and adolescence. METHODS The 1989 Isle of Wight birth cohort (1456 participants) was followed up at 1, 2, 4, 10 and 18 years. SPT was undertaken from 4 years. RESULTS SPT was performed on 980 (80%), 1036 (75%) and 853 (65%) of participants at 4, 10 and 18 years. The prevalence of sensitization to any allergen at these time-points was 19.7%, 26.9% and 41.3% respectively. At each time-point, boys were significantly more likely to be sensitized (P < 0.016) and sensitization significantly increased over childhood and adolescence (average annual increase of 7%). Some children outgrew their sensitization. The rate of sensitization to most individual allergens increased over childhood and adolescence. A configural frequency analysis showed that whether an individual was sensitizated was relatively fixed over childhood and adolescence. Cluster analysis at 4 years demonstrated four major groups of individuals with similar co-sensitization to specific allergens. Children who were sensitized at age 4 years generally went onto become sensitized to additional allergens at 10 and 18 years. CONCLUSIONS AND CLINICAL RELEVANCE Allergic sensitization continues to increase over childhood into adolescence although the majority of children who were not sensitized at 4 years remain non-sensitized throughout childhood and adolescence. The presence of sensitization at 4 years predicted later sensitization to additional allergens.
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Popa RF, Strobescu C, Baroi G, Raza A. Surgical revascularization in chronic mesenteric ischemia. REVISTA MEDICO-CHIRURGICALA A SOCIETATII DE MEDICI SI NATURALISTI DIN IASI 2013; 117:153-159. [PMID: 24505908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Chronic mesenteric ischemia (CMI) is a disease causing death either by starvation or enteromesenteric infarction. Diagnosis is often delayed before the patient is referred to a vascular surgery unit. Atherosclerosis is the main cause of CMI. Arteriography is essential in diagnosing CMI and delineating the atherosclerotic lesions. The revascularization procedure consists in an aortomesenteric bypass reconstructing 1-3 visceral arteries. This paper presents two consecutive CMI cases treated at the Vascular Surgery Unit of the Iaşi "Sf Spiridon" Hospital during 2010. Both patients had symptoms suggestive of mesenteric and aortoiliac diseases. CT angiography revealed specific lesions both for aortoiliac disease and stenotic or occlusive lesions in the celiac trunk and mesenteric arteries. Both cases benefited from aortobifemural bypass surgery using a synthetic graft associated with aortic-superior mesenteric artery bypass with reversed vein graft (in the first case both mesenteric arteries were revascularized). Immediate and remote results were favorable, with remission of intestinal symptoms and weight gain. Bypass patency was followed-up by CT angiography and Doppler ultrasound. CMI is a diagnostic and therapeutic challenge. Open surgery provides symptom remission in 90% of cases. Permeability at 5 years is 80-90% for open surgery, higher than by endovascular therapy. Average permeability of the two types of intervention is 70% at 5 years, similar to the infraaortic bypasses.
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Raza A, Yousuf N, Bokhari S, Abbas A, Lampkin B, Pancoast J, Bismayer J, Siegrist C, Browman G, Bennett J, Goldberg J, Grunwald H, Larson R, Tricot G, Vogler R, Gartside P, Preisler H. Cell-cycle characteristics - alterable determinants of remission duration in a study of 179 standard risk newly diagnosed patients with acute myeloid-leukemia. Int J Oncol 2012; 2:301-7. [PMID: 21573555 DOI: 10.3892/ijo.2.2.301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Prognostic factors were related to remission duration among 179 standard risk newly diagnosed acute myeloid leukemia (AML) patients who received identical induction and consolidation therapies. Following a bromodeoxyuridine infusion, labeling indices of bone marrow aspirate/biopsy, durations of S-phase and cell cycle (Tc) were determined. Patients with slowly cycling myeloblasts had longer remissions (Log rank p=0.03) than those with rapidly cycling myeloblasts. Multivariate analysis demonstrated that both WBC and Tc contributed to remission duration (p=0.01 and 0.005 respectively). Patients with slowly proliferating leukemias have longer remissions probably due to slower regrowth of leukemia between chemotherapy courses.
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Raza A, Shata MT. Letter: pathogenicity of Th17 cells may differ in ulcerative colitis compared with Crohn's disease. Aliment Pharmacol Ther 2012; 36:204; author reply 205. [PMID: 22703461 DOI: 10.1111/j.1365-2036.2012.05124.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Kurukulaaratchy RJ, Karmaus W, Raza A, Matthews S, Roberts G, Arshad SH. The influence of gender and atopy on the natural history of rhinitis in the first 18 years of life. Clin Exp Allergy 2011; 41:851-9. [PMID: 21561494 DOI: 10.1111/j.1365-2222.2011.03765.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND Longitudinal studies of the natural history of childhood and adolescent rhinitis are lacking. OBJECTIVES To investigate the natural history of rhinitis up to 18 years of age, and how that is influenced by gender and atopy. METHODS The Isle of Wight birth cohort was recruited in 1989 (n=1456). Questionnaire data on nasal symptoms (rhinitis) were collected at 1, 2, 4, 10 and 18 years of age. To define atopy, skin prick tests were conducted at 4, 10 and 18 years. The 12-month period prevalence plus positive and negative transitions (defined as change in disease status in two consecutive study assessments) were stratified by gender and atopic status. RESULTS Overall rhinitis prevalence increased from 5.4% at 4 years to 35.8% at 18 years (P<0.001), without gender difference. Atopic rhinitis prevalence increased steadily from 3.4% at 4 years to 27.3% at 18 years (P<0.001), was commoner in boys at 18 years (P=0.02) and associated with greater positive transition in boys from 10 to 18 years (P=0.01). Prevalence of non-atopic rhinitis also increased from 4 to 18 years (P=0.003) and was greater in girls at 18 years (P<0.001) reflecting higher female positive transition from 10 to 18 years (P<0.001). Non-atopic rhinitis negative transition (remission) was highest in early life and reduced in later childhood/adolescence. CONCLUSION Atopic rhinitis becomes increasingly common as children grow into adolescents, with stronger associations to male gender. Non-atopic rhinitis shows a female predominance at 18 years as girls 'grow into' it more during adolescence. Our findings suggest differential gender effects on the increasing prevalence of both atopic and non-atopic rhinitis in adolescence. CLINICAL RELEVANCE A better understanding of how gender and atopic status influence rhinitis during adolescence emerges from this study. Application of such knowledge could help to improve clinical recognition, judge prognosis and ultimately improve management of this common condition.
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Mackenzie H, Mahmalji W, Raza A. The gumma and the gonad: syphilitic orchitis, a rare presentation of testicular swelling. Int J STD AIDS 2011; 22:531-3. [DOI: 10.1258/ijsa.2009.009442] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A 47-year-old man presented to his general practitioner (GP) with painful swelling of his right testis. He was diagnosed with epididymo-orchitis and a two-week course of erythromycin 500 mg four times daily was prescribed by his GP. Despite initial improvement, his symptoms persisted and he was referred to the local urology department. His sexual history revealed one lifetime sexual contact. A midstream urine sample grew non-lactose fermenting coliforms sensitive to ciprofloxacin and a two-week course of ciprofloxacin 500 mg two times daily was prescribed. Despite clinical improvement, a persistent suspicious abnormality on the ultrasound scan of his right testis prompted a right radical inguinal orchidectomy to exclude malignancy. Further diagnostic tests including histopathology excluded malignancy but confirmed tertiary syphilis. A comprehensive literature search revealed only 11 confirmed cases in the past 59 years.
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Soto-Ramírez N, Alexander M, Karmaus W, Yousefi M, Zhang H, Kurukulaaratchy R, Raza A, Mitchell F, Ewart S, Arshad S. Breastfeeding is associated with increased lung function at 18 years of age: a cohort study. Eur Respir J 2011; 39:985-91. [DOI: 10.1183/09031936.00037011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Ejaz K, Khursheed M, Raza A. PP-248 Pleural effusion in dengue: a cross-sectional study from Karachi. Int J Infect Dis 2011. [DOI: 10.1016/s1201-9712(11)60398-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Aziz H, Khalid A, Murtaza S, Irfan J, Raza A. PP-132 Treatment outcome in patients with Hepatitis C: Significance of baseline parameters and viral dynamics. Int J Infect Dis 2011. [DOI: 10.1016/s1201-9712(11)60284-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Raza A, Asad J, Zaman N, Aziz H, Murtaza S, Irfan J. OL-003 Genetic changes in the interferon sensitivity determining region of hepatitis C virus during the natural course of chronic hepatitis C 3a may lead to non-response to interferon therapy. Int J Infect Dis 2011. [DOI: 10.1016/s1201-9712(11)60059-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Arshad B, Shehzad W, Malik S, Shakeel S, Raza A. PP-043 Staphylococcus epidermidis contains ampicillin resistant gene. Int J Infect Dis 2011. [DOI: 10.1016/s1201-9712(11)60196-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Afifi Y, Raza A, Balogun M, Khan KS, Holders R. New nomogram for safe laparoscopic entry to reduce vascular injury. J OBSTET GYNAECOL 2011; 31:69-72. [PMID: 21280998 DOI: 10.3109/01443615.2010.529517] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A nomogram is developed to determine the length of Veress needle that could be safely inserted to achieve pneumoperitoneum to reduce the risk of vascular injury during laparoscopic entry. Axial images of magnetic resonance imaging (MRI) were used to measure the vertical distance between umbilicus and retroperitoneal vessels (STR). This distance was correlated with body mass index and a nomogram was developed to exactly measure the safe distance for the length of Veress needle insertion. The fitted equation was STR (skin to rectus sheath) = 31.6 + 3.952 × BMI with adjusted R(2) = 94.5%. The abdominal cavity depth showed a correlation with adjusted R(2) = 84.2%. This showed a significant relation between body mass index and prediction of cavity depth. Using the mean regression line for STP (skin to peritoneum), a safe insertion distance was identified and a nomogram developed which can be used to objectively predict the depth of the peritoneal cavity.
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Raza A, Jacobson BA, Patel M, Benoit A, Jay-Dixon J, Ferguson DM, Kratzke RA. The effect of novel acridine-based agents with topoisomerase II inhibitor on mesothelioma cell proliferation and apoptosis. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e13507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Bejar R, Stevenson K, Abdel-Wahab O, Galili N, Nilsson B, Garcia-Manero G, Kantarjian H, Raza A, Levine R, Neuberg D, Ebert B. 288 Point mutations in myelodysplastic syndromes: Associations with clinical features and independent predictors of overall survival. Leuk Res 2011. [DOI: 10.1016/s0145-2126(11)70290-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Crossley RA, Raza A, Adams WM. The lumbar sedimentation sign: spinal MRI findings in patients with subarachnoid haemorrhage with no demonstrable intracranial aneurysm. Br J Radiol 2011; 84:279-81. [PMID: 21325365 DOI: 10.1259/bjr/68122723] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
We present a new MRI finding within the lumbar spine in a series of six patients admitted with CT proven subarachnoid haemorrhage (SAH) where cerebral angiography demonstrated no aneurysm and who had not had a lumbar puncture. A retrospective audit of 130 patients presenting to a regional neurosciences centre over a 13 month period with a suspected diagnosis of SAH was performed. Seven patients with proven SAH underwent MRI of the lumbar spine during the same admission. In six of these patients layering of haemorrhagic blood products was demonstrated within the lumbosacral spine. The process is analogous to the previously ubiquitous bedside erythrocyte sedimentation rate assay and has has been termed the "lumbar sedimentation" sign. This finding has not previously been reported in the literature in relation to SAH. While this is a small unselected group it may provide a useful adjunct in the diagnosis of SAH.
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Raza A. Spectrophotometric determination of mefenamic acid in pharmaceutical preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2011. [DOI: 10.1134/s106193480803009x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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