The periocular area is one of the first and most noticeable areas affected by ageing. Common signs of lower lid ageing include rhytids, prominent eye bags caused by prolapse of orbital fat pads, increased lid laxity leading to lid malpositioning, and deepening of tear troughs, all of which give a sunken aged appearance. Lower lid transcutaneous blepharoplasty can correct most of these problems providing excellent long-term aesthetic outcomes with minimal downtime for the patient.
View Article and Find Full Text PDFBackground: Many locations for the nasal valve have been suggested, and more recently the concept of the flow-limiting segment was introduced. Rather than being controlled by an internal and external valve, flow through the nose is regulated by the cartilaginous side wall, septum, and inferior turbinate.
Objectives: The aim of this study was to assess the balanced cantilever graft (BCLG) as a technique to support the lateral nasal wall.
This study is concerned with the determination of an optimal appointment schedule in an outpatient-inpatient hospital system where the inpatient exams can be cancelled based on certain rules while the outpatient exams cannot be cancelled. Stochastic programming models were formulated and solved to tackle the stochasticity in the procedure durations and patient arrival patterns. The first model, a two-stage stochastic programming model, is formulated to optimize the slot size.
View Article and Find Full Text PDFIdentifying areas for workflow improvement and growth is essential for an interventional radiology (IR) department to stay competitive. Deployment of traditional methods such as Lean and Six Sigma helped in reducing the waste in workflows at a strategic level. However, achieving efficient workflow needs both strategic and tactical approaches.
View Article and Find Full Text PDFRhinophyma is a progressive and disfiguring thickening of the nasal skin. It is typically found in middle-aged or elderly Caucasian males. The exact cause of the disease is unknown.
View Article and Find Full Text PDFRadiology reports often contain follow-up imaging recommendations. Failure to comply with these recommendations in a timely manner can lead to poor patient outcomes, complications, and legal liability. As such, the primary objective of this research was to determine adherence rates to follow-up recommendations.
View Article and Find Full Text PDFIn this paper, we model the statistical properties of imaging exam durations using parametric probability distributions such as the Gaussian, Gamma, Weibull, lognormal, and log-logistic. We establish that in a majority of radiology procedures, the underlying distribution of exam durations is best modeled by a log-logistic distribution, while the Gaussian has the poorest fit among the candidates. Further, through illustrative examples, we show how business insights and workflow analytics can be significantly impacted by making the correct (log-logistic) versus incorrect (Gaussian) model choices.
View Article and Find Full Text PDFCleft lip and palatal clefts are one of the most common birth defects with a global incidence of 1 in 700 live births. The majority of these orofacial clefts are nonsyndromic. However, a general screening for syndromes and other organ anomalies should always be performed as their association with orofacial clefts cannot be overlooked.
View Article and Find Full Text PDFPrimary aim of the article is a discussion of the postoperative care after face and neck lift. A brief history of face and neck lift along with different techniques are described. Importance of preoperative assessment is stressed.
View Article and Find Full Text PDFAnn Otol Rhinol Laryngol
September 2015
Objective: This study assesses the efficacy of alar suspension sutures in the management of nasal valve collapse causing nasal obstruction. These sutures are inserted between the vestibular skin and lateral crura and hitched to the periosteum of the medial inferior orbital margin; this is a variation of the alar (change everywhere) suspension suture technique.
Method: A retrospective review of patients who underwent alar suspension suture insertion between January 2009 and December 2010 in the management of nasal obstruction was undertaken.
We used the 18-question Glasgow Benefit Inventory (GBI) to conduct a retrospective assessment of quality of life following nasal valve surgery. We telephoned 53 patients who had undergone open rhinoplasty for the treatment of nasal valve collapse over a 2-year period. A total of 39 patients--24 men and 15 women, aged 20 to 50 years (mean: 38)--agreed to participate and answer the questions.
View Article and Find Full Text PDFObjective: To assess success rates and symptom control after surgical treatment of nasal septal perforation.
Method: A prospective study was undertaken of 28 consecutive patients with symptomatic nasal septal perforation treated surgically by one surgeon between 2005 and 2007. All patients underwent an open rhinoplasty approach with bilateral superior and inferior nasal mucosal advancement flaps and acellular porcine collagen placed in between.
J Laryngol Otol Suppl
February 2010
Aim: To assess the results of reconstruction of composite defects involving the nose which extend to involve the cheeks, eyelids or upper lip.
Study Design: Retrospective observational study.
Material: Sixteen patients with defects of the nose extending to the adjoining cheek, upper lip or eyelid.
Aim: We prospectively studied patients referred to secondary care with acute tonsillitis, peritonsillar cellulitis and quinsy (peritonsillar abscess) to see if recommended treatment guidelines were being followed and whether antibiotic resistance was contributing to admission.
Study Design: Prospective observational study in a university teaching hospital of 90 consecutive patients admitted to secondary care over an 18 month period with acute tonsillitis, peritonsillar cellulitis or quinsy were studied. The geographical distribution by postcode, pre-admission history and treatment of each patient was recorded.
Phys Rev E Stat Nonlin Soft Matter Phys
September 2007
Community detection and analysis is an important methodology for understanding the organization of various real-world networks and has applications in problems as diverse as consensus formation in social communities or the identification of functional modules in biochemical networks. Currently used algorithms that identify the community structures in large-scale real-world networks require a priori information such as the number and sizes of communities or are computationally expensive. In this paper we investigate a simple label propagation algorithm that uses the network structure alone as its guide and requires neither optimization of a predefined objective function nor prior information about the communities.
View Article and Find Full Text PDFBackground: This study was performed to determine the variations in the branching pattern of the sphenopalatine artery medial to the crista ethmoidalis. Seventy-seven cadaver head sides that had been sectioned sagittally in the midline with their septum removed were used after injecting pink latex to highlight the arterial vessels.
Methods: The mucosa from the middle meatus from the level of the basal lamella was removed until the artery and its branches were seen and then was examined under the microscope to identify the position of the arterial branches.
Background: The aim of this study was to compare the efficacy and the degree of discomfort caused by the Mygind's (supine and head extended) position and the lying on the side head down (LSHD) position used for instilling nasal drops. We performed a prospective randomized blinded cross-over trial.
Methods: Twenty-three patients with nasal polyps were recruited and were given Betnesol nasal drops for 6 weeks after assessing their peak nasal inspiratory flow rate and grading the polyps.
Objectives: To define the relationship of the anterior ethmoid artery to the frontal recess and secondly whether the degree of pneumatisation of the suprabullar recess/supraorbital cell correlates with the distance between the anterior ethmoid artery and the skull base thus making it more vulnerable to damage during surgery.
Method: Thirty-four cadaver head sides were perfused with pink latex. All specimens had high-resolution computed tomography (CT) scans using bone windows in the axial, coronal and sagittal planes.
J Plast Reconstr Aesthet Surg
March 2006
We present two cases where a large titanium implant has been used in nasal reconstruction without regard to the basic principles and current philosophy in reconstructive techniques. A full thickness nasal defect requires reconstruction with an inner lining, scaffolding and external skin. Autogenous grafts are preferable particularly when they are used for support or their insertion creates tension on the overlying soft tissue.
View Article and Find Full Text PDFJ Nanosci Nanotechnol
December 2005
Certain surfactant-stabilized aqueous foams provide a potentially efficient and simple chemical route for the synthesis of various nanomaterials with controllable structure, size, and shape. In the present work, a one-step process for the synthesis of CdS and Cd1-xMn(x)S (0 < x < 10) nanocrystals has been described. Aqueous CdCl2 and the aerosol-OT solutions are homogeneously mixed together and thereafter, nitrogen is bubbled through this solution to produce stable aqueous foam.
View Article and Find Full Text PDFObjectives: To find if the presence of epistaxis after nasal trauma can be used to predict post-traumatic external nasal deformity or a symptomatic deviated nasal septum.
Methods: Retrospective analysis of all patients seen in the fractured nose clinic by the first author between 17 October 2003 and 27 February 2004. Presence of epistaxis, newly developed external nasal deformity, and the presence of a deviated nasal septum with new symptoms of nasal obstruction were noted.