Publications by authors named "Hatem Ammar"

Background: This study aimed to evaluate the retention in care among a cohort of Egyptian people living with HIV (PLWHIV).

Method: The study was conducted on PLWHIV attending Kasr Alainy HIV and Viral Hepatitis Centre, Cairo, Egypt, from January 1, 2019, to March 31, 2023. PLWHIV were considered not retained in care if there was no documented clinical visit or HIV viral load (VL) or CD4 count test for more than 6 months from their last recorded visit or test.

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Background: Accidental hypothermia designates an unintentional drop in body temperature below 35 °C. There is a major risk of ventricular fibrillation below 28 °C and cardiac arrest is almost inevitable below 24 °C. In such cases, conventional cardiopulmonary resuscitation is often inefficient.

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Background: Corneal endothelial cell (CEC) loss in glaucoma can be attributed to the direct compressive effect of elevated intraocular pressure. Herein, we aimed to evaluate specular microscopic changes in CEC count and morphology in correlation to retinal nerve fiber layer (RNFL) changes detected by spectral-domain optical coherence tomography (SD-OCT) in early and advanced primary open-angle glaucoma (POAG).

Methods: This descriptive-analytical study involved patients with medically controlled POAG versus non-glaucomatous patients of the same age group.

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Introduction: Among patients treated with extracorporeal cardiopulmonary resuscitation (ECPR) as a second line of treatment for refractory out-of-hospital cardiac arrest (OHCA), some may develop brain death and become eligible for organ donation. The objective of this study was to evaluate long-term outcomes of kidney grafts recovered from these patients.

Material And Methods: We conducted a retrospective monocentric observational study between January 1, 2011, and December 31, 2017.

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Purpose: To assess SARS-CoV-2 virus in conjunctival tears and secretions of positive confirmed COVID-19 patients.

Methods: A case series study that included 28 positive COVID-19 patients confirmed with nasopharyngeal swab in the period 18-28 May 2020 at Sohag Tropical Medicine Hospital. Tears and conjunctival secretions of these confirmed positive cases were collected with disposable sampling swabs at interval of 3 days after admission due to respiratory symptoms.

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Aim: To evaluate the safety and efficacy of transepithelial photorefractive keratectomy (t-PRK) with adjuvant mitomycin C (MMC) versus femtosecond laser assisted keratomileusis (Femto-LASIK) in correction of high myopia.

Methods: Prospective randomized comparative study including 156 eyes of 156 patients with high myopia and a spherical equivalent refraction (SER) <-6.00 D.

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Purpose: To evaluate the outcomes of femtosecond laser-assisted implantation of a 355-degree intracorneal ring (ICR) (Keraring) in patients with keratoconus in the three-year follow-up.

Setting: Future Femtolaser Center, Sohag, Egypt.

Design: Prospective interventional case series.

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Purpose: To evaluate the corneal endothelial cell density and morphology in normal Egyptian eyes.

Methods: In total, 568 healthy eyes of 568 Egyptian volunteers aged 20 to 85 years were examined using noncontact specular microscopy for the central corneal thickness (CCT), mean endothelial cell density (MCD), coefficient of variation (CV) in cell area, mean cell area (MCA), and hexagonal cell (Hex) percentage. Variables were compared between sexes and between different age groups.

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: To report the pattern of childhood-onset uveitis observed in Egypt from May 2010 to May 2017 : Retrospective evaluation of the data of all patients with uveitis diagnosed before the age of 16 and visiting uveitis referral clinics in 5 Egyptian Governorates (Alexandria, Cairo, Al Bohayra (Damanhour), Al Gharbeya (Tanta), and Sohag) between May 2010 and May 2017. : A total of 413 uveitis patients were enrolled. These included 219 male and 194 female patients.

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: To report the pattern of uveitis in two referral eye hospitals, one in Upper Egypt and another in Lower Egypt : Retrospective chart review of all uveitis cases visiting the uveitis clinic in Alexandria and Sohag University Hospitals between May 2010 and March 2017. : A total of 1315 patients (683 in Upper Egypt and 632 in Lower Egypt) were identified. Uveitis was bilateral in 56.

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Purpose: To evaluate the efficacy and safety of air bubble technique for vitrectomy in aphakia.

Study Design: Prospective interventional uncontrolled case series.

Methods: This study included 53 eyes of 53 patients who are phakic and indicated for phacovitrectomy (7 eyes, group 1), aphakic and indicated for vitrectomy (22 eyes, group 2), or underwent unplanned vitrectomy for immediate management of a phacoemulsification surgery complicated by rupture posterior capsule with dropped nucleus, fragments, or IOL (24 eyes, group 3).

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Background: The aim of this study was to compare superior and temporal clear corneal incisions of uneventful phacoemulsification and in-the-bag intraocular lens implantation on intraocular pressure control and the bleb morphology in eyes that have undergone previous successful trabeculectomy.

Methods: In this Prospective case-control study, a total of 100 eyes of 100 patients previously undergone trabeculectomy without antimetabolites, divided into two groups. Group A (temporal group) including 50 patients underwent phacoemulsification with a temporal corneal incision and group B (superior group) including 50 patients underwent phacoemulsification with a superior corneal incision.

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Aim. To investigate corneal endothelial cell morphological in children with type 1 diabetes and to determine the systemic and local factors that contribute to these changes. Methods.

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Background: Multiparity, risk factor of maternal and foetal morbidity and mortality, is a worldwide public health problem. In Tunisia, in spite of the activities of the national program of maternal and infantile health implanted since 1966, the multiparity is yet observed in some regions of our country. Our objective is to draw up the epidemiological profile of the multipara woman (parity<6) and the grand multipara (parity> or =6) in the sanitary district of Monastir and to study the chronological tendencies of the factors associated during a decade (from 1994 to 2003).

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The skin situated in the interface between the body and the outside world, is a zone privileged by the interactions between the individual and the society. The objective of our work was to study the quality of life in dermatology, while elaborating a Tunisian version of the Skindex-29 scale. For that we questioned 60 patients, among them 20 are affected by psoriasis, 20 are affected by vitiligo and 20 are affected by onychomycosis.

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