View clinical trials related to Congenital Abnormalities.
Filter by:Examination of the fetal brain at autopsy is technically challenging because of marked fragility of the brain tissue. Studies have found postmortem fetal MR to be particularly useful in examining gross structural abnormalities in fetal brain and spine. We have recently included postmortem MR as part of the radiological studies for fetal autopsy workup. Using the same MR data, the development of normal layering of the brain, also called laminar organization, can also be assessed. This laminar organization of the brain is often disturbed in congenital malformations. Our aim is to study the disturbance in laminar organization of the postmortem brain with MR, using structural MR and a type of MR sequence called diffusion tensor imaging, which is well suited for assessing the organization of the developing brain. The postmortem MR findings will be compared with gold standard of histopathology. This will help us understand the abnormal development of gray and white matter in brain malformations. Knowledge gained from studying the abnormal laminar organization in brain malformations will serve as a reference for future studies of fetal brain malformations in-utero using MRI.
Congenital cystic adenomatoid malformations (CCAMs) are theorized to be growing immature lung tissue. Administration of maternal steroids in the mid-trimester may stop the growth or decrease the size of the CCAM, thus increasing normal lung tissue and improving survival in fetuses with large CCAMs. This is a prospective, blinded, randomized trial comparing administration of a single course of antenatal steroids (Betamethasone) to control (i.e., placebo). The primary outcome variable will be incidence of hydrops. One month postnatal survival and relative size of the CCAM as determined by CCAM volume:head circumference ratio (CVR) between treatment/no treatment groups will be secondary outcome variables. Change in size of CCAM will be serially followed for both groups with individual growth curves being plotted prenatally and these will be compared with pathology weigh and volume to evaluate treatment effect. Other prenatal data collected will include: incidence of polyhydramnios, incidence of premature rupture of membranes, incidence of material complications. We will also compare mode of delivery, postnatal respiratory compromise, need for resection in the first week of life, and occurrence of complications during newborn administration
This is a study looking at advanced imaging such as PET/CT and MRI to see if they can provide a more accurate assessment of the patient with dense breasts or difficult to interpret mammograms. In addition, the ability to determine whether one or the other is more accurate or whether both together would be appropriate in this clinical situation, may be able to be measured. The MRI studies are very sensitive for detection of breast histopathology but less specific in differentiating between small low grade malignancies are more benign pathologies. Multifocal pathology can be challenging in determining site(s) for biopsy. PET scanning is specific in the measurement of metabolic glucose activity of various histopathologies and is accurate in differentiating aggressive from benign pathology in multifocal breast disease. A further drawback of PET is the lack of ability to observe lesions less than 3-4mm in diameter. In select cases the combination of MR and PET/CT is able to come to a more conclusive diagnosis - specifically with bilateral or multifocal breast disease.
The study looks at a new treatment for wrist and finger contractures -- a condition where the affected hand is in a "closed" position, with the wrist and fingers stiff and difficult to move from that position. We want to study if stimulation of wrist and finger muscles using an implanted neuromuscular stimulator (BION) will be more or less effective than doing passive exercises of the affected hand to improve the range of movement at wrist and finger joints. Subjects of this study will be randomized into one of three groups: one doing passive movement therapy; one receiving surface stimulation (electrical stimulation with electrodes on the skin of the arm) and one doing BION® therapy. The passive movement group will do therapy for 12 weeks. Subjects in either stimulation group will receive stimulation for 6 weeks and then only passive therapy for 6 weeks.
A post-marketing study evaluating the transplantation of autologous fat augmented with Adipose Derived Regenerative Cells (ADRCs), in patients with functional and cosmetic breast deformities post segmental mastectomy or quadrantectomy (lumpectomy).
Optimise genetic screening of human embryos using higher resolution techniques
The purpose of this study is to evaluate the safety and efficacy of mipomersen (ISIS 301012) in subjects with homozygous familial hypercholesterolemia on lipid-lowering therapy. This study consisted of a 26-week treatment period and a 24-week post-treatment follow-up period. Following treatment and Week 28 evaluations, participants could elect to enroll in an open-label extension study (301012-CS6; NCT00694109). Participants who were not eligible or elected not to enroll in the open-label extension study or who discontinued during the 28-week treatment period were followed in this study for 24 weeks from administration of the last dose of study drug.
The purpose of this study is to find out if your adrenal glands are normal or abnormal. This can be determined by whether or not your adrenal gland concentrates more of a labeled building block of adrenal hormone, norcholesterol. This labeled material had been used as an investigative diagnostic tool for imaging adrenal glands for many years with success in our hands. This is a diagnostic procedure. CT, MRI and Ultrasound can determine the size and presence or absence of tumor but cannot assess the function of the adrenal glands. To determine hormone concentrations from blood samples would involve more invasive catherization.
The purpose of this study is to discover genes that may cause Coronary Artery Disease (CAD) or Arteriovenous Malformation (AVM).
This project seeks to develop a standardized technique for simultaneous capturing bi-planar images of patients against a standard background with a grid that can be used later for the quantitative determination of global balance and thoracic symmetry. We hypothesize that patients who are successfully managed with surgery will demonstrate an improvement in global balance and thoracic symmetry that can be accurately measured. This measurement station will be specifically developed to provide a standardized, reproducible means to compare clinical assessments of surgical and non-surgical outcomes, and establish normative data for comparison. This standardized tool can be established at multiple centers for use in multicenter trials.