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Masoud Aghsaei Fard - One of the best experts on this subject based on the ideXlab platform.
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augmented superior rectus Transposition Procedure in duane retraction syndrome compared with sixth nerve palsy
Graefes Archive for Clinical and Experimental Ophthalmology, 2018Co-Authors: Mohammadreza Akbari, Setareh Shomali, Arash Mirmohammadsadeghi, Masoud Aghsaei FardAbstract:Superior rectus Transposition (SRT) with medial rectus recession has been used for the treatment of sixth nerve palsy and esotropic Duane retraction syndrome (DRS). The purpose of this study was to compare the results of augmented SRT (with scleral fixation) without medial rectus recession in DRS and sixth nerve palsy. Patients with unilateral esotropic DRS (DRS group) and sixth nerve palsy were included in this prospective, comparative study and underwent SRT. Preoperative forced duction testing was negative or slightly positive in both groups. Prospective measurements were compared between the two groups. There were 11 patients in the DRS group and 11 patients in the sixth nerve palsy group. The mean preoperative esotropia decreased from 20.9 ± 6.0 prism diopter (PD) at far to 13.2 ± 5.8 PD in the DRS group (P = 0.003). The same measurement improved from 28.0 ± 8.5 PD to 8.4 ± 7.3 PD in the sixth nerve palsy group (P = 0.003). In the sixth nerve palsy group, the improvement in primary gaze esotropia and abnormal head posture was more than the DRS group (Both P < 0.001).The average dose effect for SRT was 7.8 ± 2.2 PD in the DRS group and 19.2 ± 4.6 PD in the sixth nerve palsy group. Although objective intorsion was significantly induced after SRT, subjective torsion was not significant after surgery in both groups. SRT appears to be more effective in improving primary gaze deviation and head posture in sixth nerve palsy compared with DRS. Subjective torsional and vertical diplopia were rare in both groups.
Mohammadreza Akbari - One of the best experts on this subject based on the ideXlab platform.
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augmented superior rectus Transposition Procedure in duane retraction syndrome compared with sixth nerve palsy
Graefes Archive for Clinical and Experimental Ophthalmology, 2018Co-Authors: Mohammadreza Akbari, Setareh Shomali, Arash Mirmohammadsadeghi, Masoud Aghsaei FardAbstract:Superior rectus Transposition (SRT) with medial rectus recession has been used for the treatment of sixth nerve palsy and esotropic Duane retraction syndrome (DRS). The purpose of this study was to compare the results of augmented SRT (with scleral fixation) without medial rectus recession in DRS and sixth nerve palsy. Patients with unilateral esotropic DRS (DRS group) and sixth nerve palsy were included in this prospective, comparative study and underwent SRT. Preoperative forced duction testing was negative or slightly positive in both groups. Prospective measurements were compared between the two groups. There were 11 patients in the DRS group and 11 patients in the sixth nerve palsy group. The mean preoperative esotropia decreased from 20.9 ± 6.0 prism diopter (PD) at far to 13.2 ± 5.8 PD in the DRS group (P = 0.003). The same measurement improved from 28.0 ± 8.5 PD to 8.4 ± 7.3 PD in the sixth nerve palsy group (P = 0.003). In the sixth nerve palsy group, the improvement in primary gaze esotropia and abnormal head posture was more than the DRS group (Both P < 0.001).The average dose effect for SRT was 7.8 ± 2.2 PD in the DRS group and 19.2 ± 4.6 PD in the sixth nerve palsy group. Although objective intorsion was significantly induced after SRT, subjective torsion was not significant after surgery in both groups. SRT appears to be more effective in improving primary gaze deviation and head posture in sixth nerve palsy compared with DRS. Subjective torsional and vertical diplopia were rare in both groups.
Lekshmi R. Nair - One of the best experts on this subject based on the ideXlab platform.
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Data based Transposition to Enhance Data Avalanche and Differential Data Propagation in Advanced Encryption Standard
2014Co-Authors: Paul A. J, Saju A, Lekshmi R. NairAbstract:In symmetric block ciphers, substitution and Transposition operations are performed in multiple rounds to transform plaintext blocks into ciphertext blocks. In advanced Encryption Standard (AES) the Transposition of data is facilitated by shift row and mix column operations. In Matrix Array Symmetric Key (MASK) Encryption, a block cipher proposed by the author, the data Transposition is achieved by data based rotations. The data based Transposition Procedure offers two advantages. First, it is simple to implement and secondly, the Procedure produces a strong data avalanche effect and differential data propagation. In this paper the possibility of improvising the performance of AES using data based Transposition in its diffusion rounds is examined. As a case study, the data based Transposition Procedure has been introduced in AES. The data avalanche and differential data propagation produced in AES have been observed. The paper describes the data based Transposition Procedure and the enhanced data avalanche and differential data propagation produced in AES. It has been shown that, the data avalanche effect and differential data propagation characteristics of AES have been improved
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data based Transposition to enhance data avalanche and differential data propagation in advanced encryption standard
International Journal of Computer Applications, 2013Co-Authors: A J Paul, A Saju, Lekshmi R. NairAbstract:In symmetric block ciphers, substitution and Transposition operations are performed in multiple rounds to transform plaintext blocks into ciphertext blocks. In advanced Encryption Standard (AES) the Transposition of data is facilitated by shift row and mix column operations. In Matrix Array Symmetric Key (MASK) Encryption, a block cipher proposed by the author, the data Transposition is achieved by data based rotations. The data based Transposition Procedure offers two advantages. First, it is simple to implement and secondly, the Procedure produces a strong data avalanche effect and differential data propagation. In this paper the possibility of improvising the performance of AES using data based Transposition in its diffusion rounds is examined. As a case study, the data based Transposition Procedure has been introduced in AES. The data avalanche and differential data propagation produced in AES have been observed. The paper describes the data based Transposition Procedure and the enhanced data avalanche and differential data propagation produced in AES. It has been shown that, the data avalanche effect and differential data propagation characteristics of AES have been improved. General Terms Encryption Algorithm, Diffusion Round, Symmetric Block Cipher, Cryptographic Transformation.
Paolo Esposito Veneruso - One of the best experts on this subject based on the ideXlab platform.
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reoperation in esotropic duane retraction syndrome long term motor outcome of superior rectus Transposition
European Journal of Ophthalmology, 2019Co-Authors: Adriano Magli, Luca Rombetto, Paolo Esposito VenerusoAbstract:Aim:The aim was to evaluate the long-term motor outcome of superior rectus Transposition Procedure in patients affected by unilateral esotropic Duane retraction syndrome with residual esotropia and...
Bruno Rigler - One of the best experts on this subject based on the ideXlab platform.
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intentional left subclavian artery occlusion by thoracic aortic stent grafts without surgical Transposition
Journal of Endovascular Therapy, 2001Co-Authors: Klaus A. Hausegger, Peter Schedlbauer, Olaf Stanger, P. Oberwalder, Josef Tauss, K Tiesenhausen, Hannes Deutschmann, Bruno RiglerAbstract:l l Purpose: To report the consequences of endoluminal deployment of stent-grafts in the thoracic aorta with intentional occlusion of the left subclavian artery. Case Reports: Three patients with an aortic type-B dissection and 1 with a thoracic aneu- rysm were treated endoluminally with Talent stent-grafts implanted over the ostium of the left subclavian artery without prior surgical subclavian-carotid Transposition. The primary intimal tears were sealed and the degenerative aneurysm excluded; blood pressure in the left arm was significantly diminished immediately after the stent-graft was released, but adequate collateral retrograde perfusion via the left vertebral artery was apparent in all patients. No neurological deficit and no symptoms of left arm ischemia were observed in a follow-up that ranged from 14 to 20 months. Conclusions: Our limited experience shows that occlusion of the left subclavian artery with a stent-graft is well tolerated. If ischemic symptoms occur, a Transposition Procedure can be performed on an elective basis. J Endovasc Ther 2001;8:472-476
