A single placenta normally supports a single fetus. When the situation arises in which two fetuses have to share a single placenta, complications may sometimes develop. Identical twins that share a single placenta are called monochorionic twins (MC). ?Chorion? is the Latin root that refers to the placenta, while the word ?amnion? refers to the sac, or ?membranes? that surround each fetus. While...

This report details the case of 17 year old identical twins who both presented with paroxysmal supraventricular tachycardia (PSVT). Electrophysiological studies revealed atrioventricular nodal reentry tachycardia (AVNRT) in both twins. Successful but technically challenging slow pathway ablation was performed in both twins. This is the first reported case of confirmed AVNRT in identical twins w...

A single placenta normally supports a single fetus. When the situation arises in which two fetuses have to share a single placenta, complications may sometimes develop. Identical twins that share a single placenta are called monochorionic twins (MC). ?Chorion? is the Latin root that refers to the placenta, while the word ?amnion? refers to the sac, or ?membranes? that surround each fetus. While...

INTRODUCTION Identical twins account for 0.2% of the world population and 8% of all twins. A "mirror image" variation can be found in 25% of identical twins. Studies of twins assume a special place in human genetics due to the possibility of comparing genetic and other factors. We present two pairs of identical male twins with mirror-image astigmatism and esotropia. CASE OUTLINE The first was...

Melanoma runs within families, but this may be due to either shared genetic or shared environmental influences within those families. The concordance between pairs of non-identical twins compared to that between identical twins can be used to determine whether familial aggregation is due to genetic or environmental factors. Mandatory reporting of melanoma cases in the state of Queensland yielde...

introduction:cold dissection (cd) and bipolar cautery dissection (bcd) techniques are two common surgical tonsillectomy procedures used in the clinic. obstruction has become more prevalent as the major surgical indication and is most prominently observed in younger children.case report:  in this report, we aimed to explain the abovementioned surgical techniques in detail and compare the results...

Three experiments studied the perception of speech produced by female twins (5 MZ, 1 DZ) ranging in age from 20 to 67. The experiments were designed to discover whether listeners could detect differences between twins, and to explore listeners’ perceptual representations of talkers. Because identical twins have virtually identical vocal tracts and the twins in this study grew up together in the...

This paper presents investigations into the ability of speaker verification technology to discriminate between identical twins. It is shown that whilst, in general, the genetic and non-genetic characteristics of voice are both of value to speaker verification capabilities, it is the latter which is highly beneficial in the separation of the speech of identical twins. It is further demonstrated ...