in this investigation, continuous cooling transformations and microstructures have been studied in detail in a low carbon ti-nb bearing microalloyed steel by means of dilatometry, metallography and hardness measurements. the results indicate that when the cooling rate is greater than 1˚c/s, the dilatation curve is associated with a major dilatation at relatively low transformation temperatures,...

Between 1993-1996 seventy-three consecutive patients (33 M, 40 F, mean age 35.4) with newly diagnosed achalasia underwent one or more pneumatic dilatations with the Rigiflex balloon using a protocol of graded dilatation with a fixed inflation pressure of 10 psi and constant duration of 30 seconds for all patients without using fluoroscopy. Using Vantrappen's classification for assessment of...

Introduction: Post-dilatation is associated with a simultaneous expansion of the stents that enhances the angioplasty outcomes. However, increased risk of mortality and morbidity has been reported in patients with acute myocardial infarction (AMI) which has provoked considerable controversies concerning its efficiency. Materials and Methods: During a two-...

BACKGROUND/AIM Balloon dilatation is a standard approach to the initial achalasia treatment. Modified dilatation is also applied to rise efficacy and to lower complications. METHODS A total of 57 patients were analysed within a median follow-up of 8.2 years. No premedication was used, dilatation was performed up to the pain treshold, while introduction and positioning of a dilatator was done ...

OBJECTIVE To compare clean intermittent self-catheterisation and urethral dilatation with sounds in the management of recurrent urethral strictures. DESIGN A prospective randomised control trial between repeated urethral dilatation with sounds and use of clean intermittent self-catheterisation in the management of recurrent urethral strictures. SETTING Kenyatta National Hospital, urology cl...

AIMS Glimepiride is a new sulfonylurea for diabetes treatment which is supposed to impact less on extra-pancreatic ATP-dependent K+ channels than the conventional drug glibenclamide. This study was performed to evaluate whether this results in a better maintenance of ATP-dependent K+ channel mediated ischaemic myocardial preconditioning. METHODS AND RESULTS In a double-blind placebo-controlle...

We introduce a certain integrability condition for the reciprocal of Jacobian determinant which guarantees local homeomorphism property quasiregular mappings with small inner dilatation. This turns out to be sharp in planar case. also show that every branch point mapping dilatation is Lebesgue differential matrix mapping.

Typical patients with MVP, especially global leaflet prolapse or Barlow type prolapse, have prominent MV annular dilatation with only modest LV dilatation. This discrepancy suggests that patients with MVP and annular dilatation frequently have basal predominance of LV dilatation (Figure 1). Predominantly, basal LV dilatation may cause greater systolic wall tension in the LV base compared with t...

AIM To evaluate the safety and efficacy of upper esophageal sphincter (UES) dilatation for cricopharyngeal (CP) dysfunction. To determine if: (1) indication for dilatation; or (2) technique of dilatation correlated with symptom improvement. METHODS All balloon dilatations performed at our institution from over a 3-year period were retrospectively analyzed for demographics, indication and dila...

conclusions according to the appearance of the purple line in most of the cases and its high sensitivity and specificity, we can use it as a non-invasive complementary method for clinical assessment of labor progress. results the purple line appeared in 75.3% of women during the active phase of labor. appearance of the purple line in the prediction of labor progress had 90.2% sensitivity, 45.3%...