a 29-year-old woman was referred to our hospital due to exacerbation in dyspnea on exertion and easy fatigability. a known case of congenitally corrected transposition of the great vessels and congenital complete heart block, she had already received a permanent single-chamber pacemaker. decision was made to implant a biventricular pacemaker for the treatment of the failing heart. excellent cor...

introduction cement has a wide industrial usage and it is the leading cause of occupational skin diseases among construction workers, which are present as contact urticarial and contact dermatitis. case presentation a 79-year-old water sewage worker man referred to our department with numerous symmetric hyper-keratotic papules with an erythematous base on both hands and feet for about 20 years....

background: atopic dermatitis is a major public health problem, often starting in early childhood and sometimes followed by other allergic diseases. although hypersensitivity to foods is assumed to play an essential role in the development of atopic dermatitis in some patients, little is known about common food allergens in iranian children with atopic dermatitis. objectives: this study was des...

Introduction: In radiation therapy with high-energy photon beams (E > 7 MeV) neutrons are generated mainly in LINACs head thorough (γ, n) interactions. These neutrons affect the shielding requirements in radiation therapy rooms. According to the protocol TG-34, photon absorbed dose of 10Gy can cause permanent damage to the pacemaker and the dose of 2Gy can make minor changes in...

background: the advancement of technology in recent decades has been lead to use the electrophysiology cardiac devices. although these devices are used increasingly, but the frequency of subclinical infection is unknown. we investigate bacterial infections due to implantable cardioverter defibrillator (icds) in patients with endocarditis. m aterials and methods: population of the study was cons...

Background: Atopic dermatitis is a major public health problem, often starting in early childhood and sometimes followed by other allergic diseases. Although hypersensitivity to foods is assumed to play an essential role in the development of atopic dermatitis in some patients, little is known about common food allergens in Iranian children with atopic dermatitis. Objectives: This study was des...

a 76-yr-old man with unipolar ventricular pacemaker, previously implanted in the right ventricular apex, presented with syncopal attack and twitching of the right pectoralis muscle. he finally was diagnosed as having twiddler's syndrome. the patient had a pulse rate of 36/min and cannon waves in the neck veins. chest radiography showed a dislodged pacing lead completely wrapped around the pulse...