objective: approximately 15-20% of clinically recognizable pregnancies end in spontaneous abortion. the incidence of chromosomal abnormalities in those abortions is as high as 50%.a modest but clinically important proportion of spontaneous abortions is caused by a balanced chromosomal aberration in one of the parents. this results from the production of gametes and embryos with unbalanced chrom...

Detection of the position of anatomical structures is essential in an automatic diabetic retinopathy screening system. Using these locations, a frame of reference can be set up in the fundus image. This is essential for two reasons. 1) To successfully find abnormalities in a fundus image, it is essential to mask out the normal anatomical structures from the analysis; and 2) The distribution of ...

More than one third of patients with ischemic mitral regurgitation (IMR) present a valve prolapse whose mechanism is subtended by a papillary injury. The recent literature is pointing at a regional ventricular injury or wall motion abnormality rather than a global LV dysfunction as responsible for IMR and the presence of localized valve prolapse related to papillary dysfunction is additionally ...

AIM To compare the diagnostic information provided by digital subtraction dacryocystography (DCG) and syringing of the nasolacrimal system in patients with epiphora. METHODS Twenty-five lacrimal systems of 17 patients, who presented with unilateral or bilateral epiphora and no concurrent ocular or lid abnormality, were prospectively entered into the study. The patients initially underwent syr...

Abundance and accessibility render skin-derived stem cells an attractive cell source for tissue engineering applications. Toward assessing their utility, the variability of constructs engineered from human dermis-isolated adult stem (hDIAS) cells was examined with respect to different anatomical locations (foreskin, breast, and abdominal skin), both in vitro and in a subcutaneous, athymic mouse...

Thirty three patients were followed up after anatomical correction of transposition of the great arteries or double outlet right ventricle and subpulmonary ventricular septal defect (Taussig-Bing anomaly). There were no late deaths and clinical progress was excellent. Cardiac catheterisation was performed in 17 patients two weeks to 44 months after operation. There were six patients with simple...

The identifying characteristics of the electroencephalogram in centrencephalic epilepsy have been outlined by Penfield and Jasper (1954) as including a bilaterally synchronous onset of abnormality which consists of wave-and-spike activity at or near a frequency of 3 per second. This is in contrast to the E.E.G. abnormality seen in cases of focal cortical epilepsy in which sharp waves predominat...

The pathogenesis of uncomplicated urinary tract infection (UTI) is complex and influenced by many host biological and behavioural factors and by properties of the infecting uropathogens. Most uncomplicated UTIs in women are not associated with underlying functional or anatomical abnormalities of the urinary tract, whereas sexual intercourse, spermicide use, a history of recurrent UTI and recent...