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Effects of deep trendelenburg position on the intraocular pressure and the optic nerve during anesthesia in robotic pelvic surgeries / Mohamed Ehab Ramadan Mohamed Ramadan ; Supervised Yehia Helmy Khater , Nadia Youssef Helmy , Emad Seddik Osman

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Mohamed Ehab Ramadan Mohamed Ramadan , 2017Description: 93 P. : facsimiles ; 25cmOther title:
  • تأثير وضع رأس المريض لأسفل على ضغط العين و العصب البصرى أثناء التخدير فى جراحات الحوض بأستخدام الروبوت [Added title page title]
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Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Anaesthesia Summary: Background: With advances in technology, there is an increase in the numbers of robotically performed surgeries. Robotic assisted laparoscopic (RAL) prostatectomy and hysterectomy surgeries are the most commonly performed robotic procedures. They both require placing patients in the steep trendelenburg (ST) position. Previous studies revealed that the intraocular pressure (IOP) is significantly increased during ST. This study examines the long term effects of increased IOP on the retinal nerve fiber layer (RNFL), ganglion cell complex (GCC) and visual field (VF). Materials and Methods: We conducted a prospective study on 22 patients who underwent RAL prostatectomy and hysterectomy procedures. Ophthalmology exams, including assessment of RNFL and GCC thickness using Stratus optical coherence tomography (OCT) and assessment of VF using automated perimetry Humphrey VF analyzer, were conducted at 1 month before and 3 months after surgery. During surgery, IOP was measured at 3 time points: T1 (before induction of anesthesia), T2 (at the end of ST position) and T3 (45-60 minutes after recovery from anesthesia). Results: Mean age was 61.14±7.49 years (range: 51-78), mean BMI was 32.31±6.49 kg/m² (range: 23.22-46.67) and mean ST time was 166.41 ± 28.15 minutes (range 125-215). Mean IOP was significantly higher at T2 [33.64±8.11 mmHg (range 15-52), P=0.000] and T3 17.01±4.12 mmHg range 7-27, P=0.000 compared to T1 14.11±4.29 mmHg (range 7-25)
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.11.01.Ph.D.2017.Mo.E (Browse shelf(Opens below)) Not for loan 01010110073076000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.11.01.Ph.D.2017.Mo.E (Browse shelf(Opens below)) 73076.CD Not for loan 01020110073076000
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Cai01.11.01.Ph.D.2017.Mo.C Comparative study between separate bottles and 3 in 1 admixture of total parentral nutrition in critically III pediatric patients outcome / Cai01.11.01.Ph.D.2017.Mo.C Comparative study between separate bottles and 3 in 1 admixture of total parentral nutrition in critically III pediatric patients outcome / Cai01.11.01.Ph.D.2017.Mo.E Effects of deep trendelenburg position on the intraocular pressure and the optic nerve during anesthesia in robotic pelvic surgeries / Cai01.11.01.Ph.D.2017.Mo.E Effects of deep trendelenburg position on the intraocular pressure and the optic nerve during anesthesia in robotic pelvic surgeries / Cai01.11.01.Ph.D.2017.Os.C Comparison of the effects of Albumin 5% versus Ringer's lactate on blood loss and coagulation after vascular surgery using thromboelastograph / Cai01.11.01.Ph.D.2017.Os.C Comparison of the effects of Albumin 5% versus Ringer's lactate on blood loss and coagulation after vascular surgery using thromboelastograph / Cai01.11.01.Ph.D.2017.Sa.C Comparison of analgesic efficacy of continuous epidural infusion versus patient-controlled epidural analgesia with bupivacaine and fentanyl after abdominal hysterectomy /

Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Anaesthesia

Background: With advances in technology, there is an increase in the numbers of robotically performed surgeries. Robotic assisted laparoscopic (RAL) prostatectomy and hysterectomy surgeries are the most commonly performed robotic procedures. They both require placing patients in the steep trendelenburg (ST) position. Previous studies revealed that the intraocular pressure (IOP) is significantly increased during ST. This study examines the long term effects of increased IOP on the retinal nerve fiber layer (RNFL), ganglion cell complex (GCC) and visual field (VF). Materials and Methods: We conducted a prospective study on 22 patients who underwent RAL prostatectomy and hysterectomy procedures. Ophthalmology exams, including assessment of RNFL and GCC thickness using Stratus optical coherence tomography (OCT) and assessment of VF using automated perimetry Humphrey VF analyzer, were conducted at 1 month before and 3 months after surgery. During surgery, IOP was measured at 3 time points: T1 (before induction of anesthesia), T2 (at the end of ST position) and T3 (45-60 minutes after recovery from anesthesia). Results: Mean age was 61.14±7.49 years (range: 51-78), mean BMI was 32.31±6.49 kg/m² (range: 23.22-46.67) and mean ST time was 166.41 ± 28.15 minutes (range 125-215). Mean IOP was significantly higher at T2 [33.64±8.11 mmHg (range 15-52), P=0.000] and T3 17.01±4.12 mmHg range 7-27, P=0.000 compared to T1 14.11±4.29 mmHg (range 7-25)

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