OBJECTIVE To compare health-related quality of life in patients having no neck dissection and those having a selective dissection, with particular reference to shoulder dysfunction. DESIGN Prospective study. SETTING Regional Maxillofacial Unit, University Hospital Aintree, Liverpool, England. PATIENTS Two hundred seventy-eight consecutive patients undergoing primary surgery for previously...

A dissection of a polygon is obtained by drawing diagonals such that no two intersect in their interiors. In this paper, we define toric variety Schröder type as smooth associated with dissection. Toric varieties are Fano generalized Bott manifolds, and they isomorphic if only the trees same unordered rooted trees. We describe cohomology ring using tree discuss cohomological rigidity problem.

BACKGROUND Dissection of specific Areas Of Interest (AOIs) of slide-mounted tumor samples is often used to enrich for cancer cells in order to generate better signal to noise ratios in subsequent biochemical characterization. Most clinical laboratories utilize manual dissection for practical reasons and to avoid the expense and difficulties of laser microdissection systems. Unfortunately, manua...

OBJECTIVES To compare the clinical characteristics of aortic dissection in Hong Kong with the International Registry of Aortic Dissection, and to evaluate the sensitivity of the Accident and Emergency Department in diagnosing aortic dissection and its role in aortic dissection management. DESIGN Retrospective observational study. SETTING Regional public hospital, Hong Kong. PATIENTS Newly...

OBJECTIVES/HYPOTHESIS Elective neck dissection for the clinically negative neck is often a matter of debate. A decision-analysis model that was published in 1994 established the widely accepted principle that neck dissection is warranted when the risk for occult metastases is higher than 20%. The aim of the present study was to build a specific and up-to-date decision-analysis model to determin...

OBJECTIVES To assess the value and limitations of using transoesophageal echocardiography as the sole diagnostic test in patients with suspected thoracic aortic dissection. DESIGN Retrospective data review over a two year period. SETTING A regional cardiothoracic centre. PATIENTS Data were compiled from admission records, surgical records, and lists of patients undergoing diagnostic inves...