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A Comparative Analysis on Surgical Outcomes and Complications of Endoscopic and Open Vein Harvesting Techniques

Open Journal of Thoracic Surgery 2024年第2期14卷 29-39页

作者： mohammed fawzy eltaweel Ismail N. El-Sokkary Ahmed Alherazi Mohamed Wael Badawi mohammed G. Abdellatif Bahaa A. Elkhonezy Ibrahim K. Gamil Haytham Mohamed Abd El Moaty Sarra Sadmi Mahmoud Khalil Department of Cardiothoracic Surgery Faculty of Medicine Menoufia University Shibin El Kom Egypt Department of Cardiovascular & Thoracic Surgery Faculty of Medicine Al-Azhar University Cairo Egypt Department of Cardiothoracic Surgery Faculty of Medicine Alexandria University Alexandria Egypt Faculty of Medicine University of Algiers Algiers Algeria Department of Cardiac Surgery Sabah Al-Ahmed Cardiac Center Al-Amiri Hospital Kuwait City Kuwait

Objective: The great saphenous vein (GSV) is commonly used as a conduit for grafting during CABG surgery, and open GSV harvesting (OVH), commonly used with long incision to expose the vein. However, endoscopic vein harvesting (EVH) is an alternative approach, utilizing specialized instruments and small incisions to harvest the vein. Methods: A retrospective analysis was conducted on a cohort of patients who underwent Coronary artery bypass graft (CABG) requiring great saphenous vein (GSV) harvesting which was done by EVH or OVH procedures. Demographic variables, including age and gender, were assessed for both groups. Intraoperative variables such as the number of grafts, cardiopulmonary bypass time, X clamp time, and type of procedure were analyzed. Postoperative variables, including infection and bleeding rates, were also evaluated. Results: The study included 30 patients each undergoing Coronary artery bypass graft (CABG) with need of great saphenous vein harvesting which was done by EVH and OVH. Demographic variables were well-matched between the two groups in terms of age, while a significant difference in gender distribution was observed. Obesity and smoking were more prevalent in the OVH group, and EVH was associated with a higher mean number of grafts compared to OVH. Conversion to an open technique occurred in a portion of the EVH cases, and infection rates did not significantly differ between the EVH and OVH groups. However, the incidence of postoperative bleeding was significantly higher in the EVH group. Conclusion: This study provides valuable insights into the demographic, intraoperative, and postoperative variables associated with EVH and OVH techniques. EVH demonstrated advantages in terms of reduced infection rates compared to OVH. However, the higher incidence of postoperative bleeding associated with EVH raises concerns about potential risks.

关键词： Endoscopic Vein Harvesting (EVH) Open Vein Harvesting (OVH) Coronary Artery Bypass Grafting (CABG) Great Saphenous Vein (GSV) Surgical Outcomes

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Moderate Secondary Tricuspid Regurgitation: Does It Worth More Time to Conserve?

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Open Journal of Thoracic Surgery 2021年第3期11卷 59-68页

作者： Montaser Elsawy Abd Elaziz Ahmed Labib Dokhan Awny Gamal Shalaby Hesham Hassan Ahmed mohammed Ahmed El-Hag-Aly mohammed fawzy eltaweel Cardithoracic Surgery Department Faculty of Medicine Menoufia University Menoufia Egypt Faculty of Medicine Jazan University Jazan KSA Cardiology Department Faculty of Medicine Menoufia University Menoufia Egypt

Background: Concomitant repair of moderate secondary tricuspid regurgitation (STR) during mitral valve surgery is still subject of controverse. This research aims to study the early and mid-term postoperative influence of tricuspid repair on the clinical outcomes and right ventricular functions. Methods: This is a retrospective cohort study of 92 patients with moderate STR who underwent tricuspid valve repair

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Adaptive Control System for Biogas Power Plant Using Model Predictive Control

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Journal of Modern Power Systems and Clean Energy 2021年第5期9卷 1193-1204页

作者： Samaa fawzy mohammed Saeed Abdelfattah Eladl Magdi El-Saadawi Electrical Engineering Department Mansoura UniversityMansouraEgypt

This paper presents an adaptive control system using model predictive control for a biogas-fueled power *** control scheme is derived from an anaerobic digestion model that includes the concentration of biodegradable volatile solid in the reactor,the concentration of volatile solid in influent,the concentration of acidogens,and the concentration of *** these concentrations are the state variables of model predictive *** whole biogas-fueled power system has been modeled,implemented,and tested in MATLAB/Simulink *** validate the performance of the proposed controller,different operation conditions are studied and *** simulation results prove the effectiveness and the applicability of the proposed control system under different operating conditions.

关键词： Anaerobic digestion micro-turbine model predictive control state space biogas

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Instrumented assisted soft tissue mobilization vs extracorporeal shock wave therapy in treatment of myofascial pain syndrome

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World Journal of Orthopedics 2023年第7期14卷 572-581页

作者： Nourhan Elsayed Shamseldeen mohammed Moustafa Aldosouki Hegazy Nadia Abdalazeem Fayaz Nesreen fawzy Mahmoud Department of Physical Therapy for Musculoskeletal Disorders&Its Surgery Faculty of Physical TherapyCairo UniversityCairo 14531Egypt

BACKGROUND Active myofascial trigger points(TrPs)often occur in the upper region of the upper trapezius(UT)*** TrPs can be a significant source of neck,shoulder,and upper back pain and *** TrPs and their related pain and disability can adversely affect an individual’s everyday routine functioning,work-related productivity,and general quality of *** To investigate the effects of instrument assisted soft tissue mobilization(IASTM)vs extracorporeal shock wave therapy(ESWT)on the TrPs of the UT *** A randomized,single-blind,comparative clinical study was conducted at the Medical Center of the Egyptian Railway Station in *** patients(28 females and 12 males),aged between 20-years-old and 40-years-old,with active myofascial TrPs in the UT muscle were randomly assigned to two equal groups(A and B).Group A received IASTM,while group B received *** group was treated twice weekly for 2 *** groups received muscle energy technique for the UT *** were evaluated twice(pre-and posttreatment)for pain intensity using the visual analogue scale and for pain pressure threshold(PPT)using a pressure *** Comparing the pre-and post-treatment mean values for all variables for group A,there were significant differences in pain intensity for TrP1 and TrP2(P=0.0001)and PPT for TrP1(P=0.0002)and TrP2(P=0.0001).Also,for group B,there were significant differences between the pre-and post-treatment pain intensity for TrP1 and TrP2 and PPT for TrP1 and TrP2(P=0.0001).There were no significant differences between the two groups in the post-treatment mean values of pain intensity for TrP1(P=0.9)and TrP2(P=0.76)and PPT for TrP1(P=0.09)and for TrP2(P=0.91).CONCLUSION IASTM and ESWT are effective methods for improving pain and PPT in patients with UT muscle *** is no significant difference between either treatment method.

关键词： Myofascial trigger points Upper trapezius muscle Instrument-assisted soft tissue mobilization Extracorporeal shock wave therapy Myofascial pain syndrome

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Bronchotomy as a Safe and Feasible Alternative to Failed Bronchoscopic Removal of Foreign Body Inhalation in Pediatrics. A Seven-Year Review

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Open Journal of Thoracic Surgery 2021年第2期11卷 47-57页

作者： Montaser Abd Elaziz mohammed eltaweel Mohamed Elsayed mohammed El-Hag-Aly Cardiothoracic Surgery Department Faculty of Medicine Menoufia University Al Minufya Egypt Faculty of Medicine Jazan University Jazan KSA

Background: Aspiration of foreign body is popular in pediatric age group and is considered as an important cause of respiratory distress and chocking in these children. Management strategies are different according to the mode of presentation. This study aims to assess the efficacy of rigid bronchoscopy and the role of bronchotomy as a safe alternative for failed removal of inhaled foreign body. Methods: We enrolled 254 patients with foreign body aspiration (FBA) up to 14 years old in a retrospective observational study. Our patients were reviewed from the Cardiothoracic Surgery Department and cases referred from Otorhinolaryngology Department, Menoufia University Hospital between June 2010 and July 2017. Using jet ventilation technique, foreign body was removed by the rigid bronchoscopy with either extracting forceps or postural drainage. Surgical interference such as bronchotomy needed in distally impacted foreign bodies (FBs). Results: Our study included 254 patients prepared for bronchoscopic FBs extraction. Most of cases (68.8%) presented early within first week (174 cases). No FBs detected in 44 cases by rigid bronchoscopy, although it was successful in 176 (69.5%) cases with non- impacted inhaled FBs. 14 cases only needed postural drainage due to inaccessible FBs, another 12 cases failed to extract FB with rigid bronchoscopy but they were managed with flexible bronchoscopy. Bronchotomy was needed for impacted FBs in eight cases (3%). Conclusion: This study’s findings support that rigid bronchoscopy is the gold standard in the diagnosis and removal of foreign body aspirations in pediatrics, but rigid bronchoscopy demonstrated less capability in the diagnosis and removal of small distally located foreign bodies. Bronchotomy is safe and effective alternative.

关键词： Bronchoscopy Bronchotomy Foreign Body

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Cytotoxic activity and phytochemical analysis of Arum palaestinum Boiss.

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Asian Pacific Journal of Tropical Biomedicine 2015年第11期5卷 944-947页

作者： Mai mohammed Farid Sameh Reda Hussein Lamiaa fawzy Ibrahim mohammed Ali El Desouky Amr mohammed Elsayed Ahmad Ali El Oqlah Mahmoud mohammed Saker Department of Phytochemistry and Plant Systematic National Research Center Department of Biochemistry Cairo University Department of Biological Sciences Yarmouk University Department of Plant Biotechnology National Research Center

Objective: To evaluate the in vitro cytotoxic activity of the fractionated extract as well as isolated compounds of Arum palaestinum Boiss.(A. palaestinum)(black calla lily), and to identify the volatile components which may be responsible for the potential antitumor ***: A. palaestinum was collected from its natural habitats and subjected to phytochemical analysis for separation of pure compounds. In vitro cytotoxic activity was investigated against four human carcinoma cell lines Hep2, He La, Hep G2 and MCF7 for the fractionated extract and isolated compounds. While, the diethyl ether fraction was subjected to GC–MS analysis as it exhibited the most potent cytotoxic effect to evaluate the active constituents responsible for the cytotoxic ***: Four flavonoid compounds were isolated(luteolin, chrysoeriol, isoorientin,isovitexin) from the diethyl ether and ethyl acetate. The extracts and the pure isolated compounds showed a significant high antiproliferative activity against all investigated cell lines. The GC–MS analysis revealed the separation and identification of 15 compounds representing 95.01% of the extract and belonging to different groups of chemical ***: The present study is considered to be the first report on the cytotoxic activities carried out on different selected fractions and pure compounds of A. palaestinum to provide evidences for its strong antitumor activities. In addition,chrysoeriol and isovitexin compounds were isolated for the first time from the studied taxa.

关键词： Black calla lily Araceae Flavonoids Cytotoxic acti

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A Comparative Kinetic Study on the Efficacious Permanganate Oxidation of Fluorenes in Perchloric and Sulfuric Acid Media

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Open Journal of Physical Chemistry 2017年第2期7卷 35-49页

作者： Rabab S. Jassas Ahmed fawzy Rami J. Obied mohammed A. S. Abourehab Saleh A. Ahmed Chemistry Department Faculty of Applied Science Umm Al-Qura University Makkah Saudi Arabia Chemistry Department Faculty of Science Assiut University Assiut Egypt Department of Pharmaceutics Faculty of Pharmacy Umm Al-Qura University Makkah Saudi Arabia Department of Pharmaceutics and Industrial Pharmacy Faculty of Pharmacy Minia University Minia Egypt

Oxidation kinetics of fluorene (Fl) and its halogenated derivatives, namely, 2,7-dichlorofluorene (Fl-Cl), 2,7-dibromofluorene (Fl-Br) and 2,7-diiodofluorene (Fl-I), by permanganate ion in both perchloric and sulfuric acid media have been investigated using conventional spectrophotometric technique. In both acidic media, the reactions manifested first order kineticsin [permanganate] and less than unit order each in [reductants] and [acid]. Increasing ionic strength had no effect on the oxidation rates. Oxidation rates of fluorenes in perchloric acid were higher than those in sulfuric acid and the order of the oxidation rates was: Fl > Fl-I > Fl-Br > Fl-Cl. Final oxidation products were identified by GC/MS and FT-IR analyses in all cases as 9H-fluorenone derivatives. Reaction constants as well as activation parameters of the second order rate constants were also evaluated.

关键词： Oxidation Kinetics Mechanism Fluorenes Permanganate

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Intensive care unit readmission in adult Egyptian patients undergoing living donor liver transplant:A single-centre retrospective cohort study

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World Journal of Hepatology 2022年第6期14卷 1150-1161页

作者： Manar Salah Iman fawzy Montasser Hanaa A El Gendy Alaa A Korraa Gamal M Elewa Hany Dabbous Hossam R Mahfouz Mostafa Abdelrahman mohammed Hisham Goda Mohamed Mohamed Bahaa El-Din Mahmoud El-Meteini Heba A Labib Department of Tropical Medicine Ain Shams Center for Organ TransplantationAin Shams UniversityCairo 11566Egypt Department of Anaesthesia and Critical Care Ain Shams Centre for Organ TransplantationAin Shams UniversityCairo 11566Egypt Department of General Surgery and Liver Transplantation Ain Shams Centre for Organ TransplantationAin Shams UniversityCairo 11566Egypt

BACKGROUND Patients who undergo living donor liver transplantation(LDLT)may suffer complications that require intensive care unit(ICU)*** To identify the incidence,causes,and outcomes of ICU readmission after *** A retrospective cohort study was conducted on patients who underwent *** collected data included patient demographics,preoperative characteristics,intraoperative details;postoperative stay,complications,causes of ICU readmission,and *** were divided into two groups according to ICU readmission after hospital *** factors for ICU readmission were identified in univariate and multivariate *** The present study included 299 ***-one(10.4%)patients were readmitted to the ICU after *** who were readmitted to the ICU were older in age(53.0±5.1 vs 49.4±8.8,P=0.001)and had a significantly higher percentage of women(29%vs 13.4%,P=0.032),diabetics(41.9%vs 24.6%,P=0.039),hypertensives(22.6%vs 6.3%,P=0.006),and renal(6.5%vs 0%,P=0.010)patients as well as a significantly longer initial ICU stay(6 vs 4 d,respectively,P<0.001).Logistic regression analysis revealed that significant independent risk factors for ICU readmission included recipient age(OR=1.048,95%CI=1.005-1.094,P=0.030)and length of initial hospital stay(OR=0.836,95%CI=0.789-0.885,P<0.001).CONCLUSION The identification of high-risk patients(older age and shorter initial hospital stay)before ICU discharge may help provide optimal care and tailor follow-up to reduce the rate of ICU readmission.

关键词： Intensive care units Liver transplantation Patient readmission Risk factors

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Biliary fistula and late recurrence of liver hydatid cyst:Role of cystobiliary communication:A prospective multicenter study

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World Journal of Methodology 2023年第4期13卷 272-286页

作者： Tamer A A M Habeeb Mauro Podda Boris Tadic Vishal G Shelat Yaman Tokat Mohamed Ibrahim Abo Alsaad Abd-Elfattah Kalmoush mohammed Shaaban Nassar fawzy Metwally Mustafa Mahmoud Hassib Morsi Badawy Mohamed Sobhy Shaaban Tarek Zaghloul Mohamed mohammed Ibrahim El Sayed Henish Hamdi Elbelkasi Mahmoud Abdou Yassin Abdelshafy Mostafa Amr Ibrahim Waleed A-Abdelhady TamerMohamed Elshahidy Mohamed Ibrahim Mansour Adel Mahmoud Moursi Mohamed Abdallah Zaitoun EhabShehata Abd-Allah Ashraf Abdelmonem Elsayed Rasha S Elsayed Ahmed M Yehia Amr Abdelghani Mohamed Negm Heba Alhussein Abo-Alella Mostafa M Elaidy Department of General Surgery Faculty of Medicine Zagazig UniversitySharkia 44511Egypt Department of Surgical Science University of CagliariCagliari 09126Italy Clinic for Digestive Surgery–First Surgical Clinic University Clinical Centre of SerbiaBelgrade 11000Serbia Department of General Surgery Tan Tock Seng HospitalSingapore 018971Singapore Department of Liver Transplantation and Hepatobiliary Surgery IstanbulTurkeyInternational Liver Centerand Acibadem Hospital GroupIstanbul 34000Turkey Department of General Surgery Faculty of Medicine-Merit UniversitySohag 82511Egypt Department of General Surgery Faculty of MedicineAl-Azher UniversityCairo 11765Egypt Department of General Surgery Mataryia Teaching HospitalCairo 11765Egypt

BACKGROUND Hydatid cyst disease(HCD)is common in certain *** is associated with postoperative biliary fistula(POBF)and *** primary aim of this study was to identify whether occult cysto-biliary communication(CBC)can predict recurrent *** secondary aim was to assess the role of cystic fluid bilirubin and alkaline phosphatase(ALP)levels in predicting POBF and recurrent *** To identify whether occult CBC can predict recurrent *** secondary aim was to assess the role of cystic fluid bilirubin and ALP levels in predicting POBF and recurrent *** From September 2010 to September 2016,a prospective multicenter study was undertaken involving 244 patients with solitary primary superficial stage cystic echinococcosis 2 and cystic echinococcosis 3b HCD who underwent laparoscopic partial cystectomy with *** logistic regression analysis assessed independent factors determining biliary complications and *** There was a highly statistically significant association(P≤0.001)between cystic fluid biochemical indices and the development of biliary complications(of 16 patients with POBF,15 patients had high cyst fluid bilirubin and ALP levels),where patients with high bilirubin-ALP levels were 3405 times more likely to have biliary *** was a highly statistically significant association(P≤0.001)between biliary complications,biochemical indices,and the occurrence of recurrent HCD(of 30 patients with recurrent HCD,15 patients had high cyst fluid bilirubin and ALP;all 16 patients who had POBF later developed recurrent HCD),where patients who developed biliary complications and high bilirubin-ALP were 244.6 and 214 times more likely to have recurrent hydatid cysts,*** Occult CBC can predict recurrent *** cyst fluid bilirubin and ALP levels predicted POBF and recurrent HCD.

关键词： Cysto-biliary communication Echinococcus granulosus Hydatid disease recurrence Hydatid fluid analysis Laparoscopy

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