scholarly journals Effect of Reformation of the Anterior Chamber by Air or by a Balanced Salt Solution (BSS) on Corneal Endothelium after Phacoemulsification: A Comparative Study

2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
Alahmady Hamad Alsmman ◽  
Mohammed Ezzeldawla ◽  
Amr Mounir ◽  
Ashraf Mostafa Elhawary ◽  
Osama Ali Mohammed ◽  
...  

Aim. To study the effect of reformation of the anterior chamber by air or by a balanced salt solution, after smooth phacoemulsification on the corneal endothelial count and morphology. Methods. A prospective interventional nonrandomized comparative study included 500 eyes of 500 patients with age range between 50 and 60 years, prepared for cataract surgery and presented to the Ophthalmology department of Sohag University Hospital in the period from October 2016 to May 2017. Corneal endothelial morphology and count were examined, and the results were recorded for all cases before the surgery. Patients were divided into two groups, and both groups were diagnosed with grade 2 cataract and underwent uncomplicated phacoemulsification performed by well-trained surgeons. At the end of the surgery, group 1 was subjected to a reformation of the anterior chamber via a balanced salt solution (BSS) injection while group 2 was subjected to a reformation of the anterior chamber via air injection. Corneal endothelial morphology and count were evaluated in the first and 3rd month postoperatively. Results. The study included 500 patients (250 in each group), 220 males (44%) and 280 females (56%) with no significant statistical age differences. Both preoperative and postoperative (3 months after the operation) recorded parameters of the corneal endothelium did not show any significant statistical differences. The cumulative dissipated energy was recorded, for all cases of both groups, during phacoemulsification with no significant statistical differences (P=0.7). Conclusion. There is no difference between the effect of reformation of the anterior chamber after phacoemulsification, using air or using a BSS injection, on the corneal endothelial count and morphology.

2020 ◽  
pp. bjophthalmol-2020-316120
Author(s):  
Simon Sheung Man Fung ◽  
Ali El Hamouly ◽  
Hamza Sami ◽  
Dishay Jiandani ◽  
Sara Williams ◽  
...  

PurposeTo study the longitudinal effect of anterior chamber inflammation on the corneal endothelium in children.MethodsIn this prospective longitudinal observational study, children (aged <18 years) with anterior chamber inflammation and those at risk of developing uveitis due to juvenile idiopathic arthritis (JIA) were included. Changes in central endothelial cell density (ECD) and morphological variables were determined by non-contact specular microscopy, and their correlations with uveitis activity and surgical interventions were analysed.ResultsNinety-nine eyes of 99 children (mean age (±SD): 10.0±4.1 years) with a history of anterior chamber inflammation were recruited. Mean follow-up was 12.3±3.5 months. Eleven children, who were under surveillance but had not developed JIA-associated uveitis were included as controls. While there were no significant differences in mean ECD between controls and subjects without prior surgery (group 1) at all time points, those who had prior ophthalmic surgery (group 2) displayed significantly lower ECD than the controls at recruitment (p=0.002) and at follow-up (p=0.004). However, longitudinal ECD assessments did not show significant changes in either group (group 1, p=0.07, group 2, p=0.54). On regression analysis, once the patient’s age was adjusted for, only the occurrence of intraocular procedures during the study (r=0.43, adjusted p=0.03) was associated with a significant annual rate of ECD loss.ConclusionDuring the study period, longitudinal ECD changes among children with uveitis were associated with intraocular surgery for uveitis-related complications but not uveitis activity. By reducing the need for surgical intervention, the corneal endothelium in these children may be preserved.


2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Daniele Tognetto ◽  
Chiara De Giacinto ◽  
Alberto Armando Perrotta ◽  
Tommaso Candian ◽  
Alessandro Bova ◽  
...  

Purpose. To compare the capsule edges ultrastructure obtained by two femtosecond laser-assisted cataract surgery (FLACS) platforms and manual continuous curvilinear capsulorhexis (CCC) using scanning electron microscopy (SEM). Setting. Eye Clinic, University of Trieste, Italy. Design. Experimental comparative study. Methods. 150 anterior capsules were collected and divided into three groups as follows: Group 1 (50 capsules) obtained with manual CCC, Groups 2 and 3 (each with 50 capsules) obtained with the Catalys Laser and the LenSx Laser, respectively. All samples were imaged by means of SEM and regularity of the cut surface, and thickness of the capsule edge were evaluated and compared. Results. All femtosecond laser (FSL) capsules were perfectly circular, whereas some alteration of the circular shape was observed in the manual ones. Group 1 showed a smooth and regular capsule edge without any surface irregularity, conversely Groups 2 and 3 showed postage-stamp perforations on the capsule edge. The cut surface irregularity value in Group 2 was 1.4 ± 0.63, while it was 0.7 ± 0.49 in Group 3 (p<0.05). Group 1 had a significantly lower thickness of the capsule edge than the FSL groups (p<0.05). No statistically significant difference in the capsule edge thickness between the FSL groups was found (p=0.244). Conclusions. Despite the presence of slight cut surface irregularities, both FSL capsulotomies showed a better geometry and circularity than the manual ones. Capsulotomy specimens obtained using both FSL capsulotomies showed laser-induced alterations of the capsule edge when compared with smooth and regular edges obtained using manual CCC.


Author(s):  
Eleonora Porcu ◽  
Maria Lucrezia Tranquillo ◽  
Leonardo Notarangelo ◽  
Patrizia Maria Ciotti ◽  
Nilla Calza ◽  
...  

Abstract Purpose The main purpose and research question of the study are to compare the efficacy of high-security closed versus open devices for human oocytes’ vitrification. Methods A prospective randomized study was conducted. A total of 737 patients attending the Infertility and IVF Unit at S.Orsola University Hospital (Italy) between October 2015 and April 2020 were randomly assigned to two groups. A total of 368 patients were assigned to group 1 (High-Security Vitrification™ - HSV) and 369 to group 2 (Cryotop® open system). Oocyte survival, fertilization, cleavage, pregnancy, implantation, and miscarriage rate were compared between the two groups. Results No statistically significant differences were observed on survival rate (70.3% vs. 73.3%), fertilization rate (70.8% vs. 74.9%), cleavage rate (90.6% vs. 90.3%), pregnancy/transfer ratio (32.0% vs. 31.8%), implantation rate (19.7% vs. 19.9%), nor miscarriage rates (22.1% vs. 21.5%) between the two groups. Women’s mean age in group 1 (36.18 ± 3.92) and group 2 (35.88 ± 3.88) was not significantly different (P = .297). A total of 4029 oocytes were vitrified (1980 and 2049 in groups 1 and 2 respectively). A total of 2564 were warmed (1469 and 1095 in groups 1 and 2 respectively). A total of 1386 morphologically eligible oocytes were inseminated by intracytoplasmic sperm injection (792 and 594 respectively, P = .304). Conclusions The present study shows that the replacement of the open vitrification system by a closed one has no impact on in vitro and in vivo survival, development, pregnancy and implantation rate. Furthermore, to ensure safety, especially during the current COVID-19 pandemic, the use of the closed device eliminates the potential samples’ contamination during vitrification and storage.


2020 ◽  
pp. 112067212098437
Author(s):  
Giulia Coco ◽  
Pierluca Cremonesi ◽  
Nardine Menassa ◽  
Luca Pagano ◽  
Kunal A Gadhvi ◽  
...  

Purpose: To investigate the effect of ultrasound level during phacoemulsification on pupil dynamics. Methods: Comparative retrospective study on patients who underwent routine cataract surgery at the Royal Liverpool University Hospital. Clinical parameters, anterior chamber measurements, axial length, surgeon grade, time of surgery, level of ultrasound used (cumulative dissipated energy, CDE), intra- and post-operative complications were collected. Pupil diameters were collected before and 4 ± 1 weeks after surgery in static scotopic, mesopic, photopic pupil conditions. Also, pupil dynamic measurements after luminous stimulus were recorded. Changes in static pupil diameters, relative dilation at 3.5 s after luminous stimulus, and time to reach 75% and 95% of maximum dilation were measured. Results: Forty-eight eyes of 24 patients (13 males) were included with a mean age of 73.1 ± 14.6 years. Mean CDE value was 18.11 ± 10.56. Mean scotopic pupil diameters decreased by 0.24 ± 0.48 mm ( p = 0.021) in the operated eye. Significant correlation was found between reduction in scotopic pupil diameter and CDE ( p = 0.05). A generalized linear model confirmed that the level of CDE was significantly associated with reduction in scotopic pupil diameter ( p = 0.026). Patients who underwent surgeries with lower CDE (0 < CDE ⩽ 10 and 10 < CDE ⩽ 20) did not experience significant changes in scotopic pupil diameter after surgery ( p = 0.28 and p = 0.79, respectively) as opposed to those with higher CDE (CDE > 20; p = 0.03). Conclusion: Phacoemulsification cataract surgery and the cumulative dissipated energy may be associated with changes in pupil behaviour.


2021 ◽  
Author(s):  
Wan-Ching Lien ◽  
Chih-Heng Chang ◽  
Kah-Meng Chong ◽  
Meng-Che Wu ◽  
Cheng-Yi Wu ◽  
...  

Abstract Background: This study aimed to investigate the clinical utilization of PoCUS of the first post-graduate year residents after a PoCUS curriculum. Methods: It was conducted at the emergency department of the National Taiwan University Hospital between July 2015 and October 2017. Every resident had one-month ED training and a curriculum was implemented during the first week. The post-training objective structured clinical examination (OSCE) global ratings were obtained, as well as the sonographic examinations by the residents. The participants were categorized into 4 groups: group 1 performed PoCUS before and after the curriculum; group 2 performed only after the curriculum; group 3 performed only before the curriculum; the last did not perform any examinations. Results: Two hundred and thirty-nine residents participated. The median global rating was 4 (interquartile ranges, 4-5). A significantly increasing number of residents integrated PoCUS into patient care (64 vs. 170, p=0.037) with acceptable image quality after the curriculum. Nearly 30% of residents did not use PoCUS although no differences existed in the OSCE global ratings. Group 1 performed more cases with better image quality and using ≥2 ultrasound applications (8/100 vs. 82/359, p=0.0009) after the curriculum. Group 1 performed more cases with better image quality than group 2 after the curriculum. In groups 3 and 4, “no suitable cases” (25/69), and “choosing other imaging priorities” (43/69) were the main feedbacks for not performing PoCUS. Conclusions: A focused training had a substantial positive impact on the utilization of PoCUS of the residents. The global ratings could not predict whether to integrate PoCUS into clinical practice. Further studies would be needed for the sustained effects of the curriculum and how to encourage these residents in groups 3 and 4 to use PoCUS.Clinical trial registration: NCT03738033.


2021 ◽  
Vol 17 (16) ◽  
pp. 26-30
Author(s):  
Yu.A. Kucheryavy ◽  
◽  
P.R. Movtaeva ◽  
D.N. Andreev ◽  
R.I. Shaburov ◽  
...  

Objective: to evaluate the effectiveness of an esophagoprotector in reducing the risk of recurrent symptoms of gastroesophageal reflux disease (GERD) in patients who requiring temporary cancellation of therapy with proton pump inhibitors (PPIs). Material and methods. For the prospective comparative study there were selectively chose patients who had been taking PPIs for a long time (at least one month) for the underlying disease and who required temporary discontinuation of antisecretory therapy due to objective medical reasons. The study included patients with endoscopically and/or pH-metrically verified GERD, as well as histologically verified Barrett's esophagus. In the process of randomization of patients, two equal groups were formed, depending on the therapy received at the time of PPI withdrawal: group 1 received antacids on demand, group 2 received antacids on demand, as well as the esophagoprotector Alfasoxx at a dose of 10 ml four times a day (after each meal and at night). The follow-up period was two weeks. The patients recorded episodes of heartburn in their personal diaries. Results. The study included 60 patients (28 men and 32 women). The average age of the examined patients was 43.1 ± 5.3 years. By the end of the two-week follow-up period, the frequency of recurrent symptoms in group 1 was 36.7%, while in group 2 it was 13.3%. The use of the esophagoprotector Alfasoxx contributed to the significant regression of the risk of heartburn recurrence (odds ratio 0.2657; 95% confidence interval (CI) 0.07328-0.9637; p = 0.0438) in comparison with the group of patients who received only antacids in the on-demand mode. When analyzing the population of patients who had relapsed symptoms, it was demonstrated that the average number of heartburn episodes in group 1 was 6.18 (95% CI 4,1930-8,1706), and in group 2 – 4.50 (95% CI 0,7121-8,2879). Conclusion. This prospective comparative study demonstrated that the use of the esophagoprotector Alfasoxx helps to reduce the risk of relapse of GERD symptoms in patients requiring temporary cancellation of PPI therapy.


2021 ◽  
pp. 59-61
Author(s):  
Ashok Vidhyarthi ◽  
H.S. Varma ◽  
Rajeev Singh ◽  
Rajendra Thakur ◽  
Darwin Kumar Thakur

Introduction: Clubfoot is a common congenital deformity with incidence of1-6.8/1000 live births. Ponseti method is currently the gold standard for treatment of clubfoot which conventionally involves weekly plaster changes. A prospective comparative study was carried out at our hospital where we compared one group with weekly plaster change to other group with twice weekly plaster change, using the classical Ponseti protocol of manipulation. A total 50 feet (36 children ), divided into two Methods: groups, were randomly allocated to either Group 1 – 25 feet(accelerated Ponseti) or Group 2 – 25 feet (standard Ponseti). Group 2 underwent serial manipulations and casting once a week and Group 1 received manipulations and castings twice a week. Pirani score was documented at the time of presentation, after each cast, and at the time of removalof nal cast to assess the success of treatment ( Pirani score ≤1). A tota Results: l 43 feet (29 patients) underwent the entire course of treatment, while 7 patients discontinued the treatment during the course of the study. 14 patients, i.e, 21 feet were treated with Accelerated Ponseti Protocol (APP),i.e Group -1, and 15 patients, i.e, 22 feet were treated with Standard Ponseti Protocol (SPP), i.e Group-2. Mean duration of treatment from the rst cast to tenotomy in the accelerated ponseti protocol group was 20.57 ± 4.5 days (ranging from 12 to 29 days), and in standard ponseti protocol group was 39.66 ± 6.9 days (ranging from 29 to 51 days). Conclusion: Both the methods proved to be equally efcacious for the management of clubfoot in our study. However, the accelerated method had an overall shorter treatment duration making it convenient for the parents. As the patient is under direct observation of surgeons, complications, in any, are detected early and easily. Overall, the accelerated technique is more practical, benecial, and equally efcacious as standard ponseti technique, providing a more rapid correction of the deformity.


2003 ◽  
Vol 61 (3A) ◽  
pp. 566-573 ◽  
Author(s):  
Tânia A.M.O. Cardoso ◽  
Fernando Cendes ◽  
Carlos A.M. Guerreiro

OBJECTIVE: To investigate the value of leaving seizure-free patients on low-dose medication. METHOD: This was an exploratory prospective randomized study conducted at our University Hospital. We evaluated the frequency of seizure recurrence and its risk factors following complete or partial antiepileptic drug (AED) withdrawal in seizure free patients for at least two years with focal, secondarily generalized and undetermined generalized epilepsies. For this reason, patients were divided into two groups: Group 1 (complete AED withdrawal), and Group 2 (partial AED withdrawal). Partial AED withdrawal was established as a reduction of 50% of the initial dose. Medication was tapered off slowly on both groups. Follow-up period was 24 months. RESULTS: Ninety-four patients were followed up: 45 were assigned to complete (Group 1) AED withdrawal and 49 to partial (Group 2) AED withdrawal. Seizure recurrence frequency after two years follow-up were 34.04% in group 1 and 32.69% in Group 2. Survival analysis showed that the probability of remaining seizure free at 6, 12, 18 and 24 months after randomization did not differ between the two groups (p = 0.8). Group 1: 0.89, 0.80, 0.71 and 0.69; group 2: 0.86, 0.82, 0.75 and 0.71. The analysis of risk factors for seizure recurrence showed that more than 10 seizures prior to seizure control was a significant predictive factor for recurrence after AED withdrawal (hazard ratio = 2.73). CONCLUSION: Leaving seizure free patients on low AED dose did not reduce the risk for seizure recurrence. That is, once the decision of AED withdrawal has been established, it should be complete.


2018 ◽  
Vol 16 (2) ◽  
pp. 40-43
Author(s):  
Bimarsh Adhikari ◽  
Sunil Kumar Yadav ◽  
S. N. Gupta

Background: Anal fissure is a common benign condition presenting as severe pain, constipations and bleeding per rectum. It is defined as longitudinal tear or defect in anal canal skin. Surgical treatment of this conditions requires hospital admission and complications, like bleeding, infection and to its severe extent continence disturbances. That warrants a new treatment modality as pharmacological sphincterotomy i. e topical GTN (glycerine trinitrate) whose effects are reversible, cost effective and simple. Objective: The objective is to compare the effectiveness of topical GTN over lateral sphincterotomy in terms of pain management and healing of fissure. Method: This was a comparative study carried out in the department of Surgery at Nepalgunj Medical College, Teaching Hospital. Two groups were created and 25 patients in each group were put randomly. First group (Group 1) used topical GTN whereas second group(Group 2) underwent lateral sphincterotomy for treatment of fissure. The two groups were reassessed at 4 and 8 weeks for pain and fissure healing. Result: Total number of patients was 50. Each group consisted of 25 patients. The male to female ratio in group 1 was 1:1.5 and in group 2 it was 1: 1.8. In group 1 patients after 4 weeks of application of GTN pain reduced from the mean of 80±15 at the time of presentation to 50±9.27. When these patients were seen after 8 weeks, the pain reduction on VAS was nil in 21 patients out of 25. In group 2 the mean score fell from 75±15 to 20±10 after 4 weeks and at 8weeks 23 out of 25 patients didn't have any pain. It was observed that the pain reduction and healing were faster in group 2 patients when evaluated after 4 weeks (p=0.0029). but at the end of 8 weeks both group patients were similar in terms of pain reduction and healing of fissure (p=.28). Conclusion: According to study local GTN application is as effective as lateral sphincterotomy with cost effectiveness, simple with tolerable side effect and no continence disturbances.


2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S186-S186
Author(s):  
Sunny Choe ◽  
Hend Al-Saleh ◽  
James Fallon ◽  
Herbert Galang ◽  
Justin Mathew ◽  
...  

Abstract Background There are limited data on the prevalence and risk factors of NAFLD and NASH in HIV-infected individuals receiving ART. A large study on this subject was presented at Glasgow 2018, from the University Hospital of Palermo (UHP). Methods We prospectively collected data on epidemiology, comorbidities, CD4, HIV virus load and ART from November 2017 to September 2018 in patients undergoing TE examination with Controlled Attenuation Parameter (CAP) in our HIV clinic at Saint Michael’s Medical Center in Newark, NJ. We used the same parameters to define NAFLD and fibrosis severity that were used for the UHP (CAP >248 dB/m and TE > 7.1 Kpa). We present comparative data between those 2 cohorts. Results We enrolled 624 consecutive HIV-infected individuals (group 1) their baseline epidemiologic characteristics were not significantly different from the UHP cohort (group 2) for age and sex. Prevalence of NAFLD was 51.6% in group 1compared with 42.7% in group 2, and the prevalence of significant fibrosis in those with NAFLD was 31% in group 1, and 23% in group 2. The main differences we found between those 2 cohorts were race: group 1, 68% black and group 2, 87% White, incidence of Diabetes mellitus was 20% in group 1, and 6% in group 2, despite the fact that BMI was not significantly higher in group 1. Other important differences were the mean time on ART, it was 5 years longer for group 1. Finally, there was a trend for a higher incidence of hypertension, a lower percentage of patients with Virus load < 20 c/mL, a lower mean CD4 count, and a higher percentage of integrase strand transfer inhibitors current users in group1. Conclusion NAFLD prevalence is alarming high in patients with HIV disease, it is of utmost importance to understand its natural history, in order to prevent the potentially severe consequences of NASH. Our study suggests that a longer duration on ART might correlate with higher incidence of NAFLD, which would suggest better monitoring of liver health with new ART. Disclosures All authors: No reported disclosures.


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