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Morales-Vadillo R.,University of San Martin de Porres
The International journal of oral & maxillofacial implants | Year: 2013

To assess the long-term behavior of wedge-shaped implants and evaluate the influence of the associated risk factors on implant survival rates. A retrospective review of clinical records of patients treated with wedge-shaped implants between 1992 and 2011 was conducted. Data on patient sex, age, smoking habits, and history of periodontitis; details of implant length, diameter, angle, and location; and data on surgical, reconstructive, and prosthetic procedures, and systemic disease were selected for analysis. A total of 1,169 implants placed in 154 patients (mean age 55.17 ± 11.33 years) were evaluated. Women received 637 implants, and men received 532 implants; 60.4% were placed in patients who were undergoing periodontal maintenance care, 17.9% in smokers, 17.7% in hypertensive patients, 5.7% in diabetic patients, and 4.4% in cardiac patients. The mean overall survival for implants was 194.26 ± 9.91 months. Seventy-three implants were lost: 3 before implant loading and 70 after loading. The cumulative survival rates at 5 and 10 years were 96.6% (confidence interval [CI]: 95.5% to 97.7%) and 91.8% (CI: 90.1% to 94.1%), respectively. Univariate analysis indicated tobacco smoking (P = .014) and implant location (P < .001) as significant risk factors for implant failure. The multivariate analysis showed tobacco smoking (P = .016), location (P = .001), and male sex (P = .038) as significant, and the latter factor was associated with previous periodontal disease. Overall survival of the wedge-shaped implant showed good long-term results. Male sex, tobacco smoking, and posterior maxillary location were associated with a greater risk of implant failure.

Tveteras S.,Catholic University of Peru | Paredes C.E.,University of San Martin de Porres | Pena-Torres J.,Alberto Hurtado University
Marine Resource Economics | Year: 2011

In January 2009 a new management regime of individual vessel quotas (IVQs) was put in force in the world's largest fishery, the Peruvian anchovy fishery. Until 2009, the fishery was managed by a regulated open-access system with clear symptoms of the race for fish. We argue that the new regime has stopped the race for fish, reduced the number of vessels participating in the fishery, and prolonged the fishing season. Furthermore, the IVQs appear to have improved profitability in the fishery and increased value-added production in the Peruvian anchovy value chains. This provides support that developing countries with presumed weaker institutions can reap benefits of such management systems. However, there appears to have been setbacks in 2010, as the number of participating vessels has once again increased. This indicates that the institutions that regulate and monitor the fishery must be further strengthened.

Curioso W.H.,University of Washington | Espinoza-Portilla E.,University of San Martin de Porres
Revista Peruana de Medicina Experimental y Salud Publica | Year: 2015

In this article we present the essential components and policies that are most relevant regarding the conceptual framework to strengthen the health information systems in Peru. The article also presents the main policies, actions and strategies made in the field of electronic health in Peru that are most significant. The health information systems in Peru play a key role and are expected to achieve an integrated and interoperable information system. This will allow health information to be complete, efficient, of good quality and available in a timely manner to achieve better quality of life for people and allow meaningful modernization of public health in the context of health reform in Peru. © 2015 Instituto Nacional de Salud. All rights reserved.

Introduction: The State-Trait Depression Inventory is a newly implemented tool for assessing the affective component of depression, but has no instrumental studies in clinical samples. Method: Was evaluated a clinical sample of 103 patients with depression diagnosis (51.5% male) aged between 18 and 59 years (M = 31.72). Using structural equation modeling, was evaluated the model of two oblique factors, euthymia and dysthymia, predominant in literature, in each section of State-Trait Depression Inventory, State and Trait. Results: The two-factor structure was confirmed, similar to the results obtained in other studies. Similarly, was evaluated the reliability of scores and construct reliability, obtaining appropriate indicators. Conclusion: Were confirmed adequate psychometric properties with the study sample. The practical implications and limitations of the study are discussed.

Rossell-Perry P.,University of San Martin de Porres
Journal of Plastic, Reconstructive and Aesthetic Surgery | Year: 2016

Background Many studies have been dedicated toward bettering the understanding of the anatomy of this branch and the relative danger zone. However, most of these articles have focused on identifying the location of this branch based on its trajectory and associations with deep structures, causing some difficulties for aesthetic surgeons to identify its location during facial aesthetic surgery. Here, we present the concept of the marginal nerve triangle; its contents, relations and clinical applications in cosmetic surgery are discussed. Methods This is an anatomical study performed using 64 hemifaces from 32 Peruvian fresh cadavers (25 men and 7 women). They were dissected manually and observed macroscopically by the authors. The marginal nerve and the related structures were dissected from its origin to the terminal branches and associated with the described triangular area. Results The marginal branch of the facial nerve was found to lie in the described triangle in all cases. This is a triangular area formed by the intersection of three points located at the lateral commissure of the mouth, the mastoid apophysis and a point located over the anterior border of the extracellular matrix (ECM) muscle with a line which intersects the lateral commissure of the mouth and the mandibular groove. Conclusions The trajectory of the marginal and cervical branches of the facial nerve can be reliably and easily found at the described triangle following the reference points. This study will help guide surgeons to these branches of the facial nerve as it applies to aesthetic surgery. © 2015 British Association of Plastic, Reconstructive and Aesthetic Surgeons.

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