000			03107cam a2200349 a 4500
003			EG-GiCUC
005			20250223031941.0
008			180310s2017 ua dh f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.11.24.M.Sc.2017.Ne.C
100	0		_aNermeen Shawky Botros Ghaly
245	1	0	_aCorrelation between amount of fluid used during elliptical phacoemulsification using stop and chop technique and ultrasound time and power used / _cNermeen Shawky Botros Ghaly ; Supervised Yehia Salaheldin Mostafa , Ahmed Sherief , Lamiaa Samy
246	1	5	_aالعلاقة بين كمية السائل المستخدم أثناء عملية إزالة المياة البيضاء بإستخدام جهاز الموجات فوق الصوتية بالتقنية الأهليلجيه و كمية الطاقة المستخدمة و زمن التفتيت
260			_aCairo : _bNermeen Shawky Botros Ghaly , _c2017
300			_a104 P. : _bcharts , facsimiles ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Ophthalmology
520			_aObjectives: The aim of this study is to correlate between amounts of fluid used during elliptical phacoemulsification using stop and chop technique and the time and power used. Methodology: The study was done on 117 eyes which had different cataract grades. Disinfection and draping of the surgical field was done. Then temporal clear cornea 2.2mm incision was done. Afterwards Two 20 gauge paracentesis was done followed by capsulorhexis. Then Stop and chop nuclear fragmentation using vertical chopping technique took place. It was followed by bimanual irrigation aspiration. Foldable IOL was implanted. Amount of fluid used during phaco and I/A, separately, was documented. Besides cataract grade, phaco power and time used were recorded. The effective phacoemulsification time (EPT) using EFX, denoting the amount of ultrasound delivered not only by transversal motion but also by longitudinal motion, was analyzed. The EFX was roughly the EPT with a specific coefficient for the transversal movement expressed in seconds Results: There is correlation between the amount of fluid used during phacoemulsification and I/A. There is correlation between nuclear grade, total fluid used, average phaco power, u/s time and EFX. These correlations are statistically significant. Conclusion: Preoperatively adjusting amount of fluid used based on cataract grade helped improve overall efficiency by reducing the amount of energy and reducing overall phaco time, so we can achieve minimal effect on the corneal endothelium
530			_aIssued also as CD
653		4	_aFluid used during Phaco & I/A
653		4	_aPhaco parameters
653		4	_aPhacoemulsification
700	0		_aAhmed Sherief , _eSupervisor
700	0		_aLamiaa Samy , _eSupervisor
700	0		_aYehia Salaheldin Mostafa , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aShimaa _eCataloger
942			_2ddc _cTH
999			_c65367 _d65367