OBJECTIVE To compare the results of balloon dilatation (BD) vs. telescopic metal dilators (TMDs) in establishing the tract for percutaneous nephrolithotomy (PCNL) in patients with calyceal stones or staghorn stones, but with no hydronephrosis. PATIENTS AND METHODS Data from selected patients over 4 years were recorded retrospectively. Patients with complex staghorn stones, an undilated target...

Balloon dilatation angioplasty was successfully performed in five patients (ages 18 months to 17 years) with discrete aortic coarctation. The catheter size was No. 8F or 9F. Selection of balloon diameter was based on angiographic measurements of the aorta determined proximal and distal to the coarctation site. A 10 sec inflation-deflation cycle at 6 to 8 atmospheres (90 to 120 psi) was performe...

OBJECTIVES (a) To assess the echocardiographic incidence of restenosis after successful balloon dilatation of the mitral valve at a mid-term follow up of one year among a population of predominantly United Kingdom patients. (b) To identify any factors, assessed before or during dilatation, which may predict the development of restenosis. DESIGN Successful dilatation of the mitral valve was de...

One thousand consecutive labours in primigravid patients were evaluated to show the value of the combined use of a cervical dilatation graph and a policy of active management. Intervention was required at a significantly higher rate in patients with abnormal cervical dilatation patterns. Significantly more Caesarean sections were performed in patients with abnormal cervical dilatation pattern. ...

laparoscopically-assisted vaginal hysterectomy (lavh) was performed in fifteen patients without invasive cancer. indications for hysterectomy were myomas, abnormal uterine bleeding unresponsive to hormonal treatment and dilatation and curettage, chronic pelvic pain with first degree uterine prolapse and possible adenomyosis, and dysplasia and ovarian cyst in postmenopausal years. no significant...

Lymphangioma circumscriptum is a congenital lymphatic malformation that results in gradual dilatation of lymphatic vessels and development of lymphatic cisterns. The treatment of choice is radical surgery. Other treatment methods including cryotherapy, sclerosing agent injections, radiation therapy and CO2 laser were suggested. We report successful treatment of a 14-year-old boy affected with l...

Cervical dilatation is a key event for successful vaginal delivery of young ones that occur just before parturition. Failure of cervical dilatation due to alterations in cervical ripening mechanism or insufficient uterine contraction poses problems in delivery of fetus. Cervical ripening is a multifactorial process which is an outcome of hormonal regulation, inflammatory process and enzymatic b...

A dilatation structure encodes the approximate self-similarity of a metric space. A metric space (X, d) which admits a strong dilatation structure (definition 2.2) has a metric tangent space at any point x ∈ X (theorem 4.1), and any such metric tangent space has an algebraic structure of a conical group (theorem 4.2). Particular examples of conical groups are Carnot groups: these are simply con...