-
1دورية أكاديمية
المصدر: The Egyptian Journal of Radiology and Nuclear Medicine, Vol 55, Iss 1, Pp 1-10 (2024)
مصطلحات موضوعية: COVID-19, CT severity, Mortality score, Prediction tool, Medical physics. Medical radiology. Nuclear medicine, R895-920
الوصف: Abstract Background Predictions about the hospital course of the coronavirus disease 2019 (COVID-19) patients are of paramount value. This research was designed to validate 4C mortality and CT severity scores (CT-SS) as prognostication tools of mortality and detect their relations among patients with COVID-19 who are hospitalized. The identification of other potential mortality risk factors was also evaluated. Methods Two hundred and ninety-six confirmed COVID-19 adult cases were prospectively included. They were allocated into 3 groups according to severity; 78 in moderate group, 97 in severe group, and 121 patients in critical group. Patient demographics, clinical characteristics, co-morbidities, lines of treatment, 4C mortality score and CT severity score were assessed upon admission. Results The study revealed that 90% and 84.3% sensitivities were observed for 4C mortality and CT-SS respectively as predictors of mortality. Significant correlation between both scores (r = 0.6. p = 0.0001) was detected. Multivariate analysis identified 6.9-fold increased risk of mortality for the patients with 4C mortality score > 9.5 (p = 0.001). CT-SS > 12, age ≥ 60, male gender, hypertension and diabetes mellitus were also found as significant independent factors associated with increased mortality. Conclusions Both of 4C mortality score and CT-SS have a high sensitivity as a risk-stratification scores with a considerable correlation. In addition, they represent the most independent risk factors associated with mortality in comparison to other clinical or laboratory indices.
وصف الملف: electronic resource
Relation: https://doaj.org/toc/2090-4762
-
2دورية أكاديمية
المؤلفون: Mohamed M Mabrouk, Khaled Salah Abdullateef, Ayman Hussein Abdelsattar, Mohamed Elbarbary, Sherif Kaddah, Wesam Mohamed
المصدر: African Journal of Paediatric Surgery, Vol 21, Iss 1, Pp 18-27 (2024)
مصطلحات موضوعية: millard technique, unilateral cleft lip, white roll vermilion turn down flap technique, Pediatrics, RJ1-570, Surgery, RD1-811
الوصف: Background: Cleft lip and palate, which affects 0.5–1.6 out of every 1000 live births, is the most prevalent congenital defect of the head and neck. Several approaches, including quadrangular flaps, triangular flaps and rotation-advancement procedures, White Roll Vermilion Turn Down Flap (WRV flap) from the lateral lip element were employed by Mishra to modify Millard's technique to create the vermilion and white roll on the medial lip segment. This study aimed to use the anthropometric measurements taken pre- and post-operation to evaluate quantitative assessment of modified Millard technique compared with WRV flap technique in unilateral cleft lip (UCL) repair. Materials and Methods: Prospective, randomised controlled study recruited infants scheduled for UCL repair. Infants aged 3–6 months, either complete or incomplete deformity. A total of 42 patients were randomized in 1:1 ratio to undergo either WRV flap technique (group A) or modified Millard technique (group B) and another control included 21 age-matched healthy children. We compared WRV flap procedure to Modified Millard's procedure in terms of both qualitative (another surgeon's opinion) and quantitative (anthropometric) evaluation. Results: Vertical lip length and philtral lip height significantly longer in Millard group (B) than WRV flap group (A) in immediate postoperative assessment and nasal width was significantly wider in WRV flap group (A) than Millard group (B) in 3-month post-operative assessment. The lip shape, the vermilion shape was better in Millard technique than WRV flap technique; however, this was statistically insignificant. However, no major difference in the overall results between the WRV flap and Millard rotation-advancement repairs. Conclusion: Anthropometric measurement of surgical outcome evaluates the surgical technique used and helps to compare between cleft and non-cleft side showing the degree of deformity and we used subjective assessment to analyse facial aesthetics. Overall results demonstrate no significant differences between modified Millard technique and WRV flap technique.
وصف الملف: electronic resource
-
3دورية أكاديمية
المؤلفون: Jose Aguilera, Erika Hutt, Ruth Madden, Mohamed Kanj, Walid Saliba, John Rickard, Jakub Sroubek, Thomas Callahan, Mina Chung, Brian Baranowski, David Martin, Thomas Dresing, Oussama M. Wazni, Ayman Hussein, Daniel Cantillon, Divyang Patel, Shady Nakhla, Tyler Taigen
المصدر: Heliyon, Vol 9, Iss 11, Pp e22178- (2023)
مصطلحات موضوعية: Atrial fibrillation, Catheter ablation, Pulmonary vein isolation, Same day discharge, Patients outcome, Science (General), Q1-390, Social sciences (General), H1-99
الوصف: Background: Atrial fibrillation (AF) catheter ablation has become an increasingly effective and safe strategy for the management of AF. With increased safety of catheter ablation, same-day discharge (SDD) is a potential way to minimize health care resource utilization and improve patient experience. Objective: To evaluate the safety and patient satisfaction of SDD after contemporary AF ablation. Methods: Consecutive patient undergoing AF ablation at our institution between 1/2020 and 10/2021 were enrolled in registry for clinical, quality, procedural and outcomes data. Patients were considered for SDD per physician discretion and patients’ preference based upon clinical evaluation. Adjudicated ninety-day major complications, thirty-day adverse events, and thirty-day re-admissions were collected in a prospective registry for all patients. Results: A total of 2142 consecutive patients underwent elective AF ablation during the study period. After excluding cases with missing data, 1830 patients were included in the analysis. Of those, 350 (19 %) patients were discharged the same day (SDD group) and 1480 (81 %) stayed overnight. Patients in the SDD group compared to overnight stay group were younger, more likely to be male, White patients, lower CHA2DS2-VASc score and to be on lower rates of warfarin as an anticoagulation strategy. After propensity score matching, SDD was associated with lower rate of major complications and higher patient satisfaction. The majority of life-treating complications occurred interprocedurally or within 6 h of procedure termination. Conclusion: The present study demonstrated that SDD after contemporary AF ablation is feasible, safe and associated with higher patient satisfaction using a proposed SDD pathway and criteria.
وصف الملف: electronic resource
-
4دورية أكاديمية
المؤلفون: Mohammed A. H. Abdelhakiem, Ayman Hussein, Samia Moustafa Seleim, Abdelbaset Eweda Abdelbaset, Mahmoud Abd-Elkareem
المصدر: Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
الوصف: Abstract This study investigated the effect of the silver nanoparticles (AgNPs) and platelet-rich fibrin (PRF) in the healing of the severed superficial digital flexor tendon in donkeys (SDFT). Twenty-seven adult donkeys were used in the study. The animals were divided into three equal groups. The first group (control group) in which the severed SDFT was sutured without the addition of any adjuvant. In the second group, there was a suture of severed SDFT with the addition of 1 ml of 1 mM silver nanoparticles (AgNPs group). The third group was subjected to the cutting of SDFT and then the addition of PRF after its suture. Each group of animals was divided into three equal subgroups that were examined after 1, 2, and 3 months. Each group of animals was clinically evaluated by assessing lameness. Gross and microscopic examinations of the healed tendons were performed after 1, 2, and 3 months of surgery. In comparison to the control group, the lameness degree decreased in the PRF and AgNPs groups, particularly in the third month after surgery. Furthermore, the lameness decreased significantly after the 3rd month relative to the 1st-month lameness in the AgNPs group. Interestingly, it was found that the PRF and AgNPs enhanced cell alignment and collagen deposition at the site of tendon injury, particularly among third-month subgroups. Therefore, it could be concluded that the PRF and AgNPs are effective materials for enhancing SDFT healing in donkeys.
وصف الملف: electronic resource
Relation: https://doaj.org/toc/2045-2322
-
5دورية أكاديمية
المؤلفون: Mohamed M. Elbarbary, Basma Magdy, Mahmoud ElFiky, Ahmed M.K. Wishahy, Ayman Hussein, Maggie L Naguib, Mohamed Elseoudi
المصدر: Journal of Pediatric Surgery Open, Vol 3, Iss , Pp 100048- (2023)
مصطلحات موضوعية: Tracheomalacia, Esophageal atresia, Respiratory symptoms, Tracheopexy, Pediatrics, RJ1-570, Surgery, RD1-811
الوصف: Background: Tracheomalacia frequently develops in esophageal atresia patients (EA) especially in those with tracheoesophageal fistula (TEF). Conservative management has been the standard treatment; however, it was reported that delay in management could result in chronic lung conditions. Thus, early surgical interventions have been recently recommended. Patients and Methods: We enrolled patients presented with type-C esophageal atresia, with concomitant moderate to severe tracheomalacia, who had their thoracoscopic intervention done during the study period 2019–2022. Early and intermediate- term outcomes were studied and compared to another cohort with mild or no tracheomalacia. Results: During the allocated study period, 24 patients met the inclusion criteria for tracheopexy, but only 17 were followed up due to early demise of the other seven. During the follow-up period, 7/17 patients developed respiratory symptoms, which were attributed to esophageal stricture in 5 patients, recurrent TEF in 2 patients and one of them had residual tracheomalacia in addition to the developed recurrent TEF. The outcomes of the enrolled patients for tracheopexy were similar to those with no or mild tracheomalacia. Conclusions: Primary posterior tracheopexy during the primary repair might be considered a safe and feasible option not only to alleviate respiratory symptoms secondary to tracheomalacia in EA patients, but also to decline the need of further surgical interventions. However, more comprehensive studies with long-term follow-ups are mandatory.
وصف الملف: electronic resource
-
6دورية أكاديمية
المصدر: Ain Shams Engineering Journal, Vol 14, Iss 10, Pp 102208- (2023)
مصطلحات موضوعية: Flat slab, Interior slab-column connection, Punching shear, Ultra-High Performance Concrete (UHPC), Steel fibres, ABAQUS, Engineering (General). Civil engineering (General), TA1-2040
الوصف: In this paper, punching shear behavior of Ultra-High Performance Concrete (UHPC) was investigated experimentally and numerically. In this study, six 1350 * 1350 * 80 mm flat slabs with extended 200 mm column stubs above the slabs were constructed to study the effect of the increased strength of UHPC and its ductility with different concrete mix ratios and different column aspect ratios. All specimens contained steel fibers which increased slabs ductile behavior and shared directly in increasing punching shear capacity of the examined specimens. Numerical investigation was performed as nonlinear finite element analysis adopting ABAQUS software using concrete damaged plasticity model (CDPM), ABAQUS/Explicit. Compression and tensile behaviors of concrete were modeled by Hognestad Parabola and Bilinear tensile stress versus crack width respectively. The average strength of test specimens ranged between 164 MPa and 193 MPa in compression and 9.6 MPa to 13.1 MPa in tension. In this study, analysis parameters were concrete strength, column aspect ratio, column shape, and flexural reinforcement ratio. The results showed an increase in punching shear capacity in the six specimens ranged between 32% and a 20.8% relative to ACI 318-19 punching strength formula and Euro code EN1990.2012 formula, respectively.
وصف الملف: electronic resource
-
7دورية أكاديمية
المؤلفون: Ayman Hussein, Trambak Bhattacharyya
المصدر: Physics, Vol 4, Iss 3, Pp 800-811 (2022)
مصطلحات موضوعية: Tsallis statistics, Tsallis thermodynamics, thermodynamic variables, integral representation, Physics, QC1-999
الوصف: In this paper, we provide an account of analytical results related to the Tsallis thermodynamics that have been the subject matter of a lot of studies in the field of high-energy collisions. After reviewing the results for the classical case in the massless limit and for arbitrarily massive classical particles, we compute the quantum thermodynamic variables. For the first time, the analytical formula for the pressure of a Tsallis-like gas of massive bosons has been obtained. The study serves both as a brief review of the knowledge gathered in this area, and as original research that forwards the existing scholarship. The results of the present paper will be important in a plethora of studies in the field of high-energy collisions including the propagation of non-linear waves generated by the traversal of high-energy particles inside the quark-gluon plasma medium showing the features of non-extensivity.
وصف الملف: electronic resource
-
8دورية أكاديمية
المؤلفون: Dina Hossam El Dine Hamed, Ayman Hussein, Basma Magdy, Mohamed Elseoudi, Mohamed M. Elbarbary, Ahmed M. K. Wishahy
المصدر: Annals of Pediatric Surgery, Vol 18, Iss 1, Pp 1-6 (2022)
مصطلحات موضوعية: Esophageal atresia, Bronchoscopy, Tracheoesophageal fistula, Tracheal diverticulum, Pediatrics, RJ1-570, Surgery, RD1-811
الوصف: Abstract Background Esophageal atresia (EA) is not a rare congenital anomaly. It is usually accompanied by tracheoesophageal fistula (TEF). Respiratory morbidities are experienced in most of the survivors. Although it was believed that these symptoms tend to improve by age, permanent lung damage may continue to adulthood in some patients. We aimed to assess the respiratory tract in the follow-up period as an attempt to correlate possible findings with symptoms experienced which allowed us to pay more attention to the respiratory tract during the upcoming surgical interventions. Prospective observational study was conducted on patients presented to our institute, throughout 2018, with various degrees of refractory respiratory tract involvement, after having had their EA repaired inside or outside our institute. After exclusion of esophageal causes of these manifestations, bronchoscopy was performed to correlate the findings with the symptoms experienced by these patients. The study does not include patients repaired after 2018 as surgical modifications were performed and are still under study. Results Fifteen patients presented with various respiratory symptoms. Although recurrent chest infection is the commonest presentation, acute life-threatening events were reported in 5 patients. Blind-ended tracheal diverticulum was the most common finding observed in 80% of patients. About 76% of these patients were found to have tracheomalacia. Moreover, bronchoscopy was able to detect recurrent tracheoesophageal fistula in 4 patients. Vocal cords were affected in 13% of these patients. Conclusions Frequent respiratory symptoms in operated patients warrant careful long-term monitoring and appropriate management. Although bronchoscopy is considered a mandatory pre-repair procedure, it is a crucial tool in evaluating the survivors. It is pivotal to pay more attention to the respiratory tract to modify the surgical techniques to overcome these pitfalls.
وصف الملف: electronic resource
Relation: https://doaj.org/toc/2090-5394
-
9دورية أكاديمية
المصدر: Frontiers in Medicine, Vol 9 (2022)
مصطلحات موضوعية: precision medicine, precision health, phenotype, genomics, individualized, population, Medicine (General), R5-920
وصف الملف: electronic resource
-
10دورية أكاديمية
المؤلفون: Ayman Hussein, Hamdy Ibrahim, Hazem Mashaly, Sameh Hefny, Abdelrahman El Gayar
المصدر: The Egyptian Journal of Neurology, Psychiatry and Neurosurgery, Vol 57, Iss 1, Pp 1-8 (2021)
مصطلحات موضوعية: Percutaneous, Pedicular, Screw fixation, Minimally invasive, Spine surgery, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
الوصف: Abstract Background Percutaneous pedicle screw technique is relatively a recent technique that evolved the concept of posterior spinal instrumentation, utilizing familiar fluoroscopic landmarks to guide the procedure of screws insertion, which despite being technically demanding, it avoids the Musculo-ligamentous damage associated with the conventional posterior technique. Aim of the work This study aims to report our experience in managing traumatic and degenerative spine pathologies by the minimally invasive percutaneous technique and assessing its radiological and functional outcome. Materials and methods A prospective observational study that included the analysis of the functional, operative, biochemical, and radiological outcomes of 20 patients who underwent uniplanar fluoroscopic-guided dorsal and/or lumbar percutaneous pedicle screw fixation procedures with or without fusion using the sextant, longitude, and Spineart system and any reported complications between January 2018 and December 2019. Results The clinical and radiological analysis of 100 percutaneous pedicle screws in degenerative (n:11) and traumatic (n:9) dorsal and/or lumbar cases revealed that the biomechanical stabilizing characteristics are comparable to the conventional posterior approach with the added benefits of the paraspinal muscle-sparing. Satisfactory functional outcome represented in the improvement of the postoperative back pain visual analog score and Oswestry Disability Index Score with acceptable morbidity and complications rate was noticed. Conclusions Percutanous pedicle screw fixation is a landmark in the evolution of the minimally invasive spine surgery which can be a safe alternative to the conventional posterior muscle stripping technique with a comparable functional and radiological outcome and good biomechanical profile and an acceptable morbidity rate.
وصف الملف: electronic resource
Relation: https://doaj.org/toc/1687-8329
Full Text Finder 
Full Text via ClinicalKey