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Ahmad Ameri

Manijeh Beigi, Anahita Fathi Kazerooni, Mojtaba Safari, Marzieh Alamolhoda, Mohsen Shojaee Moghdam, Shiva Moghadam, Hamidreza SalighehRad, Ahmad Ameri
PURPOSE: To evaluate whether the pretreatment apparent diffusion coefficient (ADC) heterogeneity parameters and their alterations, after one cycle of induction chemotherapy, can be used as reliable markers of treatment response to induction chemotherapy in patients with nasopharyngeal cancer. MATERIALS AND METHODS: Ten patients were recruited and received induction chemotherapy (IC). Diffusion-weighted imaging was performed prior to, during, and after IC. The first-order ADC histogram parameters at the intra-treatment time-point were compared to the baseline time-point in the metastatic lymph nodes (LNs)...
January 2018: La Radiologia Medica
Navid Khaledi, Mahmood Reza Aghamiri, Hossein Aslian, Ahmad Ameri
CONTEXT: Using this source model, the Monte Carlo (MC) computation becomes much faster for electron beams. AIMS: The aim of this study was to present a source model that makes linear accelerator (LINAC) electron beam geometry simulation less complex. SETTINGS AND DESIGN: In this study, a tabulated square-shaped source with transversal and axial distribution biasing and semi-Gaussian spectrum was investigated. SUBJECTS AND METHODS: A low energy photon spectrum was added to the semi-Gaussian beam to correct the bremsstrahlung X-ray contamination...
January 2017: Journal of Cancer Research and Therapeutics
Ghazaleh Heydarirad, Hossein Rezaeizadeh, Rasool Choopani, Seyed Hamdollah Mosavat, Ahmad Ameri
BACKGROUND: Xerostomia is one of the most common side effects of radiation therapy among patients with head and neck cancers (HNC). However, conventional medicine lacks an effective treatment for radiation-induced xerostomia. OBJECTIVE: Synthesizing the traditional use of Alcea digitata and Malva sylvestris with their known beneficial effects from recent studies, we evaluated the efficacy of the herbs in the quality of life (QOL) of HNC patients with radiation-induced xerostomia...
May 2017: Journal of Integrative Medicine
Ahmad Ameri, Farzad Farzbod, Fatemeh Bazvand, Arash Mirmohammadsadeghi, Mohammadreza Akbari, Faramarz Anvari, Simindokht Hosseini
PURPOSE: To evaluate the efficacy of botulinum toxin injection in the patients with type 1 Duane syndrome and identify the predictive factors for success. METHODS: Sixteen patients with esotropic type 1 Duane syndrome without history of ocular surgery were selected for this interventional case series. The botulinum toxin was injected in the medial rectus of all patients. Visual acuity, dry refraction, cyclo-refraction, ocular motility, and amount of deviation were measured...
March 2017: Journal of Current Ophthalmology
Ahmad Ameri, Nafiseh Mortazavi, Helaleh Khoshbakht Ahmadi, Kambiz Novin
To investigate whether excision repair cross complementing-group1 (ERCC1) expression status could serve as a bio-predictor of response to platinum-based induction chemotherapy for head and neck cancers (HNCs) patients with a diagnosis of epithelial HNC were studied retrospectively. Paraffin embedded tumor samples of the patients were analyzed by reverse transcription-polymerase chain reaction (RT-PCR) to determine ERCC1 expression status and its correlation with response to platinum-based induction chemotherapy was investigated...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
Mohammad Reza Akbari, Ahmad Ameri, Ali Reza Keshtkar Jaafari, Arash Mirmohammadsadeghi
PURPOSE: To evaluate the rate of and predictive factors for successful treatment of restrictive myopathy in thyroid-associated orbitopathy (TAO) using botulinum toxin injection. METHODS: Twenty patients with restrictive myopathy of TAO were enrolled in the study. Abnormal thyroid function test results were not a prerequisite for inclusion. In each extraocular muscle 25 units of botulinum toxinA were injected. The success rate, calculated at 2 years or last follow-up before surgery, was defined as proportion of the cases with esotropia of <10(Δ), vertical deviation of <5(Δ), and no diplopia in primary position and downgaze for at least 1 year...
April 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
Mohammadreza Akbari, Parisa Abdi, Masoud Aghsaei Fard, Marjan Afzali, Ahmad Ameri, Alireza Yazdani-Abyaneh, Massod Mohammadi, Sasan Moghimi
BACKGROUND: Loss of retinal ganglion cell-inner plexiform layer (GCIPL) thickness has been shown in different optic neuropathies. In this study, we evaluated the capability of GCIPL analysis by optical coherence tomography (OCT) to detect early neuronal loss during the time course of nonarteritic anterior ischemic optic neuropathy (NAION). METHODS: Twenty-four patients with unilateral NAION participated in this prospective, comparative study. Affected and unaffected eyes underwent spectral domain OCT measurement of the retinal nerve fiber layer (RNFL), total macula, and GCIPL thicknesses...
June 2016: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
Kambiz Novin, Ahmad Ameri, Saba Faraji, Peyman Torbati, Nafiseh Mortazavi
BACKGROUND: Evidences about survival of the patients with head and neck squamous cell carsinoma (HNSCC) have been scant in our region. OBJECTIVES: The aim of current study was to determine clinico-pathological and treatment-related factors, influencing outcome of these patients. PATIENTS AND METHODS: We have reviewed all patients with a new diagnosis of HNSCC admitted between 2008 and 2014 in "Jorjani Cancer Center", Tehran, Iran. Overall survival (OS) and event free survival (EFS) of the patients, and their relation with demographic and clinico-pathological factors have been analyzed...
October 2015: Iranian Journal of Cancer Prevention
Mohammad Reza Akbari, Babak Masoomian, Ahmad Ameri, Alireza Keshtkar Jaafari, Arash Mirmohammadsadeghi
PURPOSE: To develop a Persian version of the Adult Strabismus Questionnaire (AS-20) and use the new questionnaire to evaluate the effect of strabismus surgery on health-related quality of life (HRQOL). METHODS: The Persian version of the AS-20 was developed with the help of Beaton and colleagues' guidelines. The reliability of the final version was tested with the test-retest and internal consistency methods. The construct and criterion (concurrent) validity were also tested for the questionnaire...
2015: Strabismus
Ahmad Ameri, Ghazaleh Heydarirad, Hossein Rezaeizadeh, Rasool Choopani, Ali Ghobadi, Latif Gachkar
Dry mouth is a common complication of radiotherapy for head and neck cancers. This study compared the efficacy of an herbal compound containing Malva sylvestris and Alcea digitata (Boiss) with artificial saliva (Hypozalix) for improving the symptoms of dry mouth in head and neck cancer patients. The study examined a total of 62 subjects assigned to 2 groups. The herbal compound and Hypozalix were administered for 4 weeks. Efficacy was assessed using the visual analog scale and by grading the degree of dry mouth...
January 2016: Journal of Evidence-based Complementary & Alternative Medicine
Ahmad Ameri, Mohammad Reza Akbari, Ali Reza Keshtkar Jaafari, Masoud Aghsaei Fard, Bahram Eshraghi, Vida Tavakoli, Arash Mirmohammadsadeghi
PURPOSE: The purpose was to describe the medial rectus muscle elongation (MRE) procedure to treat very large-angle esotropia (ET) with surgery on a lower number of muscles. METHODS: Twenty patients with very large-angle ET (more than 70 PD) underwent the MRE procedure. In the MRE procedure, the muscle was split longitudinally into three parts. The wider central part was sutured with 6/0 vicryl and disinserted. The distal end of the peripheral parts (still attached to the original insertion), 7-9 mm away from the insertion, was sutured to the proximal end of the central part...
July 2015: Graefe's Archive for Clinical and Experimental Ophthalmology
Ahmad Ameri, Arash Mirmohammadsadeghi, Ali Makateb, Fatemeh Bazvand, Simindokht Hosseini
PURPOSE: To assess the efficacy of botulinum toxin (Novotox) injection in patients with cerebral palsy (CP) and esotropia. PATIENTS AND METHODS: In a non-comparative, prospective interventional case series botulinum toxin injection was done in 44 patients with CP and esotropia. A single dose of botulinum toxin was injected in both medial rectus muscles of all patients and was repeated in 12 patients. Angle of deviation within 10 prism diopters (PD) of orthotropia was defined as a successful outcome...
2015: Strabismus
Navid Khaledi, Azim Arbabi, Dariush Sardari, Mohammad Mohammadi, Ahmad Ameri
PURPOSE: The electron or photon beams might be used for treatment of tumors. Each beam has its own advantage and disadvantages. Combo beam can increase the advantages. No investigation has been performed for producing simultaneous mixed electron and photon beam. In current study a device has been added to the Medical Linac to produce a mixed photon-electron beam. METHODS: Firstly a Varian 2300CD head was simulated by MCNP Monte Carlo Code. Two sets of perforated lead sheets with 1 and 2 mm thickness and 0...
June 2015: Physica Medica: PM
Ahmad Ameri, Mohammad Reza Akbari, Ali Reza Keshtkar Jaafari, Mohammad Taher Rajabi, Masoud Aghsaei Fard, Arash Mirmohammadsadeghi
PURPOSE: To report the effectiveness of incorporating a central tenectomy on the recessed rectus muscles when treating large-angle horizontal deviations. METHODS: Patients undergoing recession and central tenectomy from March 2010 to January 2013 were prospectively enrolled. The procedure entails making two longitudinal incisions, each 4 mm, on the muscle adjacent to sutures made during the recession procedure. With recession complete and muscle sutured to the sclera, the central flap (with approximately one-third of the insertion width) is excised...
December 2014: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
Ahmad Ameri, Ghazaleh Heydarirad, Jamileh Mahdavi Jafari, Ali Ghobadi, Hossein Rezaeizadeh, Rasool Choopani
CONTEXT: Conventional therapies using mucilage plants greatly used by practitioners in Iran. The usage of mucilages is rooted in traditional knowledge with a history of more than 4000 years. Scientific assessment of these historical documents could be valuable for finding new potential usage in the current medicine. OBJECTIVE: This study assembled an inventory of mucilage plants considered important therapeutic aids for alleviating the ailments in ancient Persian medicine and compared therapeutic applications of ancient times with current findings of medicinal mucilages in the same plant species...
April 2015: Pharmaceutical Biology
Khosro M Sheibani, Ahmad R Mafi, Shiva Moghaddam, Farnaz Taslimi, Ahmadreza Amiran, Ahmad Ameri
AIM: Several studies have demonstrated positive effects of benzydamine oral rinse in prevention of radiation-induced oral mucositis. The aim of this study was to assess the efficacy of this medication in reducing the signs and symptoms of oral mucositis in patients receiving radiotherapy for head and neck cancer. METHODS: Fifty-one patients with head and neck carcinoma 2012 received external beam radiotherapy for 5 days/week to total planned cumulative radiotherapy doses of at least 5000 cGy...
March 2015: Asia-Pacific Journal of Clinical Oncology
Mahmoud Ameri, Miryam Kadkhodayan, Joe Nguyen, Joseph A Bravo, Rebeca Su, Kenneth Chan, Ahmad Samiee, Peter E Daddona
This study evaluated the feasibility of coating formulated recombinant human growth hormone (rhGH) on a titanium microneedle transdermal delivery system, Zosano Pharma (ZP)-hGH, and assessed preclinical patch delivery performance. Formulation rheology and surface activity were assessed by viscometry and contact angle measurement. rhGH liquid formulation was coated onto titanium microneedles by dip-coating and drying. The stability of coated rhGH was determined by size exclusion chromatography-high performance liquid chromatography (SEC-HPLC)...
2014: Pharmaceutics
Mohammad Reza Akbari, Ahmad Ameri, Alireza Keshtkar Jaafari, Masoud Aghsaei Fard, Bahram Eshraghi, Arash Mirmohammadsadeghi
PURPOSE: To describe clinical features of patients with unilateral isolated inferior rectus (IR) muscle paralysis along with type of surgical treatment and results after surgery. METHODS: Patients diagnosed with unilateral isolated IR muscle palsy between 2009 and 2012 that required surgical treatment were included in the study. Diagnosis of IR muscle palsy was done by hypertropia with the largest angle in depression and abduction and inferior rectus muscle underaction...
June 2014: Strabismus
Mohammad Reza Akbari, Marjan Akbari-Kamrani, Arman Mohseni, Alireza Keshtkar Jafari, Masoud Aghsaei Fard, Ahmad Ameri
PURPOSE: To evaluate and compare the effect of four horizontal rectus muscle Tenotomy And Replacement (TAR) alone and in combination with recessions for strabismus, on visual function and eye movement records in patients with INS without AHP, and to compare these results. METHODS: This was a prospective interventional case series of 14 patients with INS with no AHP or eccentric null point. Patients underwent 4 horizontal eye muscle tenotomy and replacement (TAR) alone or 2 muscle TAR in combination with conventional bilateral horizontal muscle recession according to the presence and type of strabismus...
2013: Binocular Vision & Strabology Quarterly, Simms-Romano's
Mohammad Reza Akbari, Babak Masoomian, Alireza Keshtcar Jafari, Masoud Aghsaei Fard, Ahmad Ameri, Arash Mirmohammad Sadeghi
PURPOSE: To evaluate the surgical and functional results of slanted medial rectus resection for treatment intermittent exotropia of the convergence insufficiency type. METHODS: Fifteen patients with near vision asthenopia and intermittent exotropia of the convergence insufficiency type were included in this prospective study. The upper edge of the MR was resected more than the lower edge. Slanted bilateral or unilateral medial rectus resection was performed. The mean length of follow-up was 14...
2013: Binocular Vision & Strabology Quarterly, Simms-Romano's
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