Accuracy of Root ZX II in locating foramen in teeth with apical periodontitis: an in vivo study

Introduction

This study was conducted in vivo to investigate the accuracy of Root ZX II in locating the apical foramen in teeth with apical periodontitis (AP).

Methods

Twenty-seven single-root teeth scheduled for extractions were selected; in AP group, there were 12 teeth with pulp necrosis and radiographic evidence of apical lesions, and VT group consisted of 15 vital teeth. After endodontic access, the coronal portion of the canal was flared, and electronic measurement was performed by using a 15 K-file until the device level reading “APEX” was reached. The file was fixed in place, and the tooth was extracted. The apical third of the root was shaved until exposure of the file. The distance from the file tip to the most coronal border of the apical foramen was obtained.

Results

The mean distance in AP group was +0.117 (standard deviation, 0.373) and in VT group was -0.105 (standard deviation, 0.218). The unpaired t test showed no difference between the groups when comparing the mean distances (P > .05). The apical foramen was accurately located within ±0.5 mm in 83% of the teeth in AP group and in 100% of VT group. Statistical analysis showed no difference between the groups (P = .1092).

Conclusions

The Root ZX II device was accurate in locating the apical foramen regardless of the presence of AP.     

Use of a spinal cord stimulator for treatment of Martorell hypertensive ulcer

Martorell ulcer is a specific disease entity characterized by multiple small homogeneous, symmetrical lesions, although single lesions are observed as well, most commonly located on the anterolateral aspect of the lower leg. The pain associated to these lesions is disproportionate to their size.Martorell ulcer designates a specific disease entity that occurs predominantly in middle-aged women with poorly controlled hypertension in the form of skin ulcers on the anterolateral aspect of the lower legs. The lesions initially appear as small, painful blisters which may or may not be associated with trauma. The pathophysiology of Martorell ulcer is assumed to be related to hypertension-induced arteriole changes in the dermis. The pain is often disproportionate, and the symptoms are not relieved by rest or elevation.Spinal cord stimulation (SCS) is an accepted evidence-based therapy for the treatment of chronic ischemic pain. Spinal cord stimulation is used as a therapeutic tool in the management of this disease not only for symptomatic pain control but also for accelerating the healing process through its effects on causal mechanisms. The beneficial effects of SCS when used to treat ischemic pain include pain relief, decreased infarction or ulcer size, decreased oxygen requirements, and increased claudication distance. Clinical and basic studies indicate that these beneficial effects are mainly associated with an increase or redistribution of blood flow to the ischemic area and/or normalization of the activity in the nervous system.We present the case of a 71-year-old woman diagnosed with Martorell ulcer in the acute phase of the disease. The patient was treated with SCS to achieve both pain relief and healing of the cutaneous ulcer.     

Interventions in pseudophakic rhegmatogenous retinal detachment

With refinement of vitrectomy techniques over the past 30 years, the treatment of rhegmatogenous retinal detachment (RRD) has transitioned from the almost exclusive use of extraocular techniques to the present time in which intraocular interventions are available and, in some practices, enjoy almost exclusive use for primary repair of RRD. Except for those situations in which a retinal detachment is associated with obvious immediate complications related to the cataract surgery, the considerations for the treatment of pseudophakic RRD are quite similar to those of phakic RRD. The current options are: use of an extraocular buckling device, vitrectomy-related procedures, intraocular gas injection with associated retinopexy, and combinations of these. Disagreement on the ideal intervention for pseudophakic retinal detachment is not uncommon and particularly so in those RRDs which lie somewhere in the spectrum between complex and simple. As is so often the case in the surgical treatment of disease, there may not be one ideal technique for a particular type of RRD; but knowledge of alternatives logically increases the likelihood of a successful result. The goal of this paper is to outline the clinical factors shown to be of importance in deciding which technique will have the greatest chance at not only achieving retinal re-attachment but also in optimizing long-term vision.     

Factors influencing adherence to highly active antiretroviral therapy in Spain

BACKGROUND: Multiple factors have been previously described which could influence adherence to HAART. Our objective is to determine the fundamental factors which influence adherence to highly active antiretroviral therapy in our population. METHODS: A cross-sectional study was made selecting 143 outpatients attending our hospital HIV unit. 22 factors were recorded which could influence adherence to treatment (covering individual factors, the illness itself, the therapeutic regimen and the medical team). Adherence was estimated by the combination of two methods (self-report and pharmacy data); statistical analysis was performed using univariate and multivariate methods. RESULTS: 96 patients (67.13%) had good adherence and 47 (32.87%) did not. Only 3 of the 22 factors studied were significant and independent factors related with adherence: employment, housing situation and degree of treatment acceptance. CONCLUSIONS: we have found some differences regarding HAART adherence in our population compared with previous studies. Psychosocial and behavioral factors were the principal ones. We must try to detect patients at high risk of non-adherence in order to take therapeutic decisions properly, try to reinforce adherence and modify the factors associated with poor adherence.     

Prevalence of Type 2 diabetic patients within the targets of care guidelines in daily clinical practice: a multi-center study in Brazil

Major clinical studies have shown that the targets for blood glucose, lipid profile and blood pressure in type 2 diabetic patients are difficult to maintain in clinical practice. However, there are few data concerning South American populations. Using guidelines represented by the Brazilian Diabetes Society, we evaluated cardiovascular (CV) risk factors, glycemic control and the availability of screening for diabetes complications in 2233 (60% females) outpatients with type 2 diabetes aged 59.2 +/- 11.3 yr and with a known duration of diabetes of 9.2 +/- 7.2 yr, collected from 8 Brazilian cities. The outcome showed that less intensive clinical care available for diabetic patients in Brazil compared to western industrialized countries leads to widespread poor metabolic control and health status. Less than 30% of the patients reached the target for systolic (28.5%, < 130 mmHg) and diastolic (19.3%, < 80 mmHg) blood pressure, BMI (24.6%, < 25 kg/m2), LDL cholesterol (20.6%, < 2.6 mmol/l) and only 46% reached the goal for HbA1c (one % point above the upper limits of normality for the method used). Only 0.2% of patients reached all the targets. A lower number of women reached the targets for HbA1c, LDL and HDL cholesterol than men (p < 0.001). Women were less likely than men to have funduscopy examinations and urine albumin testing (p < 0.001). We conclude that the national goals for glycemic control, blood pressure and lipid levels are rarely achieved in clinical practice, and that the availability for diabetic complication screening is low. The quality of diabetes care, in particular for women, is poor and should be further reviewed in developing countries.     

Angiographic evaluation of high-risk treadmill scores in patients with unstable angina according to sex, age, or use of drugs with a negative chronotropic effect

INTRODUCTION AND OBJECTIVES: The aim of the study is to determine whether age, sex, or the use of drugs with a negative chronotropic effect modifies the sensitivity, specificity, positive or negative predictive value, or positive or negative likelihood ratio of the high-risk criteria used in exercise testing as defined by the Spanish Society of Cardiology (SEC) and the American College of Cardiology/American Heart Association (ACC/AHA), the Duke treadmill score, the Veterans Affairs and West Virginia prognostic score, or the ST/Heart Rate Index at the time when left main coronary artery disease, three-vessel disease or two-vessel disease involving the proximal left anterior descending artery is detected by coronary angiography. METHODS: The study included a cohort of 469 consecutive patients aged 75 years who were admitted to hospital for unstable angina. All patients underwent exercise stress testing and coronary angiography. RESULTS: In all situations, the ACC/AHA high-risk criteria had the highest sensitivity, negative predictive value, and negative likelihood ratio, and the Duke Treadmill Score had the highest specificity and positive predictive value. The diagnostic accuracy of the other treadmill scores was affected by sex, age or the use of drugs with a negative chronotropic effect. CONCLUSIONS: The ACC/AHA high-risk criteria and Duke Treadmill Score provided useful additional information during the assessment of ST-segment depression. These measures could help improve the diagnostic accuracy of conventional ECG exercise testing in women, older individuals, and patients taking beta-blockers or non-dihydropyridine calcium antagonists.     

The role of new therapies for severe community-acquired pneumonia

PURPOSE OF REVIEW: Community-acquired pneumonia (CAP) is associated with significant morbidity and mortality and is the most common cause of death from infectious diseases. CAP patients requiring intensive care unit (ICU) admission carry the highest mortality rates. This paper aims to review the current literature regarding epidemiology, risk factors, severity criteria and reasons for admitting the hospitalized patient to the ICU, and the empiric and specific antibiotic therapeutic regimens employed. RECENT FINDINGS: Multiple sets of clinical practice guidelines have been published in the past few years addressing the treatment of CAP. The guidelines all agree that CAP patients admitted to the hospital represent a major concern, and appropriate empiric therapy should be instituted to improve clinical outcomes. SUMMARY: The cost, morbidity and mortality of CAP patients requiring ICU admission remain unacceptably high. These are heterogeneous groups of patients, so it is important to use risk-stratification based on clinical parameters and prediction tools. Appropriate antibiotic therapy is an important component in the management of both groups of patients. In particular, it is essential to administer an appropriate antimicrobial agent from the initiation of therapy, so that the risks of treatment failure and the morbidity of CAP may be minimized.