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Search Results: 1 - 10 of 38166 matches for " Z. Khan "
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Pakistan Veterinary Journal , 2006,
Abstract: No Abstract
A revision of the Cormack and Lehane laryngoscopic grading system with special consideration to grade II laryngoscopic view
Hussain khan Z,Azarbakht Z
Tehran University Medical Journal , 2007,
Abstract: Background: The major responsibility of an anesthesiologist is to provide adequate respiration for the patient. The most vital element in providing functional respiration is the airway. No anesthetic is safe unless diligent efforts are devoted to maintaining an intact functional airway. Difficult intubation had been classified into four grades, according to the view obtainable at laryngoscopy by Cormack and Lehane in 1984. This grading system has been in use to evaluate and manage those patients with difficult airway by anesthesiologists. In clinical state, grades III and IV are quite rare, so the need for a modified Cormack and Lehane grading system was felt. The use of a modified Cormack-Lehane scoring system of laryngoscopic views during direct laryngoscopy, was previously examined in the Western population. Koh and his co-workers had examined this modified Cormack and Lehane grading system in Asian population in a study in Singapore General Hospital. The aim of this study was to investigate this scoring system in Iranian patients.Methods: In a cross sectional study, a modified version of the Cormack and Lehane grading system was evaluated in 300 patients requiring tracheal intubation. In the modified system, grade II (only part of the glottis is visible) was divided into IIa (part of the cords is visible) and IIb (only the arytenoids or the very posterior origin of the cords are visible). Difficult intubation was defined as requiring more than one laryngoscopy or the use of special equipments.Results: Sixty eight patients (22.7%) were scored as grade IIa and 32 (7.7%) as grade IIb. The prevalence of difficult intubation in grade IIb was significantly higher than patients in group IIa (47.8% vs. 2.9% respectively, Fisher's exact test, p= 0.001)Conclusion: The modified grading system provides more information than the original Cormack and Lehane system."n
On certain new Gronwall-Bellman type integral inequalities of two independent variables
Z. A. Khan
International Journal of Mathematical Analysis , 2012,
A Profile Of Anganwadi Workers In Jawan Block Of District Aligarh, Uttar Pradesh
Khan Z,Hasan J
Indian Journal of Community Medicine , 1992,
Abstract: One hundred and ten anganwadi workers in Jawan block of district Aligarh were contacted and interviewed. Their socio- cultural characteristics as well as their knowledge and attitude towards common health problems were studies.
On some new variations of integral inequalities
Z. A. Khan
Applied Mathematical Sciences , 2012,
On quasi -pure submodules of QTAG-modules
Mohd. Z. Khan,A. Zubair
International Journal of Mathematics and Mathematical Sciences , 2000, DOI: 10.1155/s016117120000288x
Abstract: Different concepts and decomposition theorems have been done for QTAG-modules by number of authors. We introduce quasi h-pure submodules for QTAG-modules and we obtain several characterizations for quasi h-pure submodules and as a consequence we deduce a result done by Fuchs 1973.
Estimation of Objects in Computer Tomography Lung Images Using Supervised Contextual Clustering
Z. Faizal Khan,V. Kavitha
Research Journal of Applied Sciences , 2012, DOI: 10.3923/rjasci.2012.494.499
Abstract: Image segmentation plays a vital role in medical imaging applications. Image processing techniques provide a good tool for improving the manual screening of CT samples of lung. Developing a robust and efficient algorithm for medical image segmentation has been a demanding area of growing research of interest during the last two decades. This research reports on Estimation of objects by segmenting Computer Tomography (CT) lung images using supervised contextual clustering method. Matlab Software regionprops function has been used as one of the criteria to show the performance of Contextual Clustering (CC). The CC segmentation shows more segmented objects with least discontinuity within the objects in the CT lung image. The segmented results are compared with the conventional algorithms such as Sobel, Prewitt, Roberts, Log and Zero crossing. The results obtained from the experiments show that the proposed approach is found to be efficient and robust against segmentation faults when compared to the existing methods.
Forward movement of the lower mandible in the prediction of difficult intubation: a prospective study
Hussain khan Z,Mirazimi F
Tehran University Medical Journal , 2007,
Abstract: Background: Failed endotracheal intubation is one of the principal causes of morbidity and mortality in anesthetized patients. If the anesthetist can anticipate which patients may be more difficult to intubate, can reduce the risks of anesthesia greatly and be more prepared for any difficulties that may occur. The aim of this study was to investigate the inability of patients to protrude the lower jaw in predicting difficult intubation.Methods: In this prospective study, we enrolled 300 patients, above 16 years of age or older, who were scheduled for elective surgery. For all of the patients, before each operation, a single anesthesiologist measured the temporomandibular mobility, which was defined as the difference between the distances, from the lower incisors to the upper incisors in a neutral position and at maximum mandibular protrusion. At the time of intubation, another anesthesiologist, blinded to the preoperative airway assessment test, performed a laryngoscopy in which the laryngoscopic view of the larynx was determined according to the Cormack and Lehane scoring system. Difficult intubation was defined as laryngoscopic views of grade III and IV.Results: Twenty-one patients were identified as having difficult intubation. Only one patient could not be intubated. The forward movement of the mandible was significantly greater in patients with easy intubation compared to those with difficult intubation (6.42±1.95 mm vs. 3.58±1.26 mm respectively, P<0.001). The use of a cut-off point of less than 5 mm for prediction of difficult intubation showed a sensitivity of 92.86% and a specificity of 70.43%.Conclusion: The forward movement of the mandible is significantly greater in patients with easy intubation compared those with difficult intubation Although infrequent difficulties may arise, most patients that do not have indicators of difficult intubation will be easy to intubate under anesthesia.
The effect of stress on prognosis and treatment response in 100 Rheumatoid Arthritis patients
Hussain khan Z,Mirazimi F
Tehran University Medical Journal , 2007,
Abstract: Background: Rheumatoid arthritis (RA) is a chronic inflammatory disease with several factors that contribute to its manifestation and continuation. One of the factors that initiate RA is emotional stress, which is in direct relationship with the sufficiency or insufficiency of the neuro-endocrine axis. Therefore, any stress that is not resolved in the neuro-endocrine axis might lead to RA and, as the stress continues, it causes the continuation of the disease. The aim of this study is to determine the effect of stress on continuation of RA and to find curative methods and, ultimately, the best method for treatment.Methods: One hundred rheumatoid arthritic patients (80 females and 20 males), having a final diagnosis of RA based on the guidelines of the American College of Rheumatology and onset of disease within the last 12-36 months, were studied as case and control subjects. Data was collected using interviews and questionnaires that reflected their life events with stress as a serious factor in their disease. The patients were divided into two groups: group A with stable stress and group B with unstable stress. The same treatment method was given to both groups. The results of the treatment were evaluated and compared after two years of follow up.Results: There was significant improvement in the patients in group B with unstable stress over that of the patients in group A with stable stress (P<0.0001).Conclusion: The present study shows that a considerable number of RA patients suffer from serious stress that affects their clinical path and improvement, and is quite visible in the health indexes and continuity of the disease. The results further showed that stress can play an important role in the initiation and continuation of RA. Therefore, by identifying and making efforts to remove the stress factors using anti-anxiety drugs, the disease can be better controlled.
Environmental Factors Affecting Performance Traits of Sahiwal Cattle in Pakistan
Z. Rehman*§ and M. S. Khan
Pakistan Veterinary Journal , 2012,
Abstract: Data on 23925 lactations of 5897 Sahiwal cows in five Government herds of Punjab (Pakistan) viz. Livestock Experiment Station (LES) Allahdad, LES Bahadurnagar, LES Fazalpur, LES Jahangirabad and LES Khizerabad (1964-2004) were collected to document the behavior of various productive and reproductive traits of Sahiwal cows with respect to herd, year and season of calving and parity. A linear model was used to determine the effects of various environmental factors on performance traits. The 305-day milk yield, total milk yield, lactation length, dry period, calving interval and service period averaged 1530.5±12.36 kg, 1552.1±12.15 kg, 235±1.4 days, 218±2.1 days, 438±2.7 days and 151±2.8 days, respectively. All the productive and reproductive traits were affected (P<0.01) by herd, year, season of calving and parity. Lactation length was important covariable for yield traits while yield was important for dry period, service period and calving interval. Maximum yield was recorded for 5th parity cows. Calving interval differed by two months among herds. Cows calving in most frequent calving season (winter) produced more milk than summer calvers (1608.6±12.91 kg vs 1474.1±13.63 kg). The phenotypic trends for 305-day milk yield, total milk yield, lactation length, dry period, calving interval and service period were -1.33 kg, -0.21 kg, -1.27 days, +1.52 days, +0.32 days and +0.59 days, respectively. Lactation length (244.5 days) was used as covariable. Improvement in feeding and breeding management and culling on productivity may improve the performance of Sahiwal cows.
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