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Search Results: 1 - 10 of 254837 matches for " David L.;Tavora "
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Retroperitoneoscopic nephrectomy in benign pathology
Quintela, Rodrigo S.;Cotta, Leonardo R.;Neves, Marcelo F.;Abelha Jr, David L.;Tavora, Jose E.;
International braz j urol , 2006, DOI: 10.1590/S1677-55382006000500004
Abstract: introduction: we report our experience with 43 retroperitoneal laparoscopic nephrectomy for benign kidney disease. materials and methods: all patients had a poor function from obstructive uropathology and renal atrophy. none of these patients had a previous lumbotomy. retroperitoneoscopy was performed with 4 trocar port technique in a lateral position. the retroperitoneal space is created by using a gaur's balloon made of sterile glove. the approach to vascular pedicle was done posteriorly and vessels were clipped by metal and hem-o-lock (weck closure systems, north carolina, usa) clips. the sample was intact extracted in an endo-bag prolonging one trocar incision. results: median operative time was 160 minutes and median blood loss was 200 ml. four cases (9%) were converted to open surgery: one case due to bleeding and 3 cases due to technical difficulties regarding perirenal adherences. most patients (39) checked out from the hospital in day two. four of them were left over 3 days due to wound complications. conclusions: retroperitoneoscopy offers a safe, effective and reproductive access to nephrectomy for benign pathologies.
Retroperitoneoscopy for treatment of renal and ureteral stones
Soares, Rodrigo S.;Romanelli, Pedro;Sandoval, Marcos A.;Salim, Marcelo M.;Tavora, Jose E.;Abelha Jr, David L.;
International braz j urol , 2005, DOI: 10.1590/S1677-55382005000200004
Abstract: objective: to assess the efficacy of retroperitoneoscopy for treating stones in the renal pelvis and proximal ureter. materials and methods: in the period from august 2003 to august 2004, 35 retroperitoneoscopies for treatment of urinary stones were performed on 34 patients. fifteen patients (42%) had stones in the renal pelvis, and in 2 cases, there were associated stones in the upper caliceal group. twenty patients (58%) had ureteral stones, all of them located above the iliac vessel. twenty-five patients (71%) had previously undergone at least one session of extracorporeal lithotripsy and 8 patients (26%) also underwent ureteroscopy to attempt to remove the stone. eight patients underwent retroperitoneoscopy as a primary procedure. stone size ranged from 0.5 to 6 cm with a mean of 2.1 cm. results: retroperitoneoscopy was performed by lumbar approach with initial access conducted by open technique and creation of space by digital dissection. we used a 10-mm hasson trocar for the optics, and 2 or 3 additional working ports placed under visualization. following identification, the urinary tract was opened with a laparoscopic scalpel and the stone was removed intact. the urinary tract was closed with absorbable 4-0 suture and a penrose drain was left in the retroperitoneum. in 17 patients (49%), a double-j stent was maintained postoperatively. surgical time ranged from 60 to 260 minutes with a mean of 140 minutes. the mean hospital stay was 3 days (1-10 days). the mean length of retroperitoneal urinary drainage was 3 days (1-10 days). there were minor complications in 6 (17.6%) patients and 1 case of conversion due to technical difficulty. thirty-three patients (94%) became stone free. conclusion: retroperitoneoscopy is an effective, low-morbidity alternative for treatment of urinary stones.
Rural elderly women: The sweat of their bodies and the work of his hands. The paradigms of the Greek polis still present in the current days  [PDF]
Alcione Tavora Kullok
Health (Health) , 2014, DOI: 10.4236/health.2014.65042

Background: In Brazil between 1960 and 1990 there established the hegemony of young people between 15 and 24 years old, a phenomenon known worldwide as “youth wave”. Forty years later, with continued declining levels of fertility and mortality, in the first decade of this century, the young country came to bear white hair with the continued growth of the aging rate. Official census data show the growth of the elderly population, above sixty years, predominantly female, and population growth increasingly urbanized [1, 2]. This article reports the findings from a recent study of elderly women, in the contexts of “rurality”. Objectives: The aim of this study was to analyze the social construction of gender division of work and retirement of older rural women. Comprehending through historically dialectical materialism, the process of exclusion of rural elderly women, some public policies and programs aimed at elderly populace. Ethnographic Method: fieldwork and interviews (one-to-one and in groups), field notes, participant observation, photography, and archival review. Sample: 27 women aged between 68 to 92 years. Findings: Only four receive retirement as peasant, three owners of land and a former employee; the other receive her husband’s pension or are included in the Provision of Continued Benefit (PBC). Conclusion: Non-receipt of retirement for these women, as citizen’s peasant, it is a violation of her rights recognized under the Federal Constitution of 1988, and reveals how the Aristotelian paradigm persists in their activities: That sweat of her bodies and the work of her hands, it is not considered as work; it is labor.

Morphologic Characteristic of Coronary Artery Disease, with Emphasis on Thromboses, in Patients Younger Than 40 Years of Age
Fabio Tavora,Ling Li,Mary Ripple,David Fowler,Allen Burke
Pathology Research International , 2010, DOI: 10.4061/2010/628247
Abstract: There are few pathologic descriptions of fatal coronary artery disease in the young. The morphologic characteristics of sudden coronary deaths in 47 hearts from patients younger than 40 years were studied. Numbers of plaques with necrotic cores were quantitated in each heart. Compared to 194 sudden coronary deaths >40 years, heart weight was lower, acute plaque erosions more frequent, and extent of disease less in the 40 years group. Plaque burden was less in hearts with erosions, and healed infarcts more common in hearts with stable plaque. The numbers of fibroatheromas increased with age until the 6th decade ( ) as well as the proportion of total plaques that were atheromatous. Plaques in younger patients have fewer lipid-rich cores. Most thrombi show areas of organization, with layering frequent in erosions, suggesting a possible method of plaque enlargement in the absence of necrotic core formation. 1. Introduction The morphologic characteristics of acute, fatal coronary thrombi in patients aged 40 years or less are not well characterized. Patients younger than 40 undergoing coronary artery bypass graft surgery have a high incidence of coronary risk factors, especially smoking; by angiography, a high proportion of these cases have left main (13.8%) and triple vessel disease (60%) [1]. A more recent autopsy study has shown that in 11 sudden coronary deaths under age 35, there were few lipid-rich plaques, and most thrombi were erosions with ongoing organization of thrombus [2]. The purpose of this study is to determine the types of thrombi, frequency of organization, and degree of inflammation in a series of premature sudden coronary deaths with underlying thrombosis. These findings should confirm previous observations in a larger number of cases and document the progression of relatively nonlipid rich plaques to lethal occlusive thrombi. 2. Materials and Methods Hearts were prospectively studied in cases of sudden coronary death, with semiserial sectioning of epicardial coronary arteries. Cases were seen in consultation from a statewide medical examiner’s office over a 6-year period. Noncardiac causes of death were established by postmortem toxicology. Risk factors were determined by scene investigation. Epicardial arteries were sectioned at 5?mm intervals and all areas with grossly identified plaque submitted for histologic analysis. Hearts were weighed with 2?cm of aorta attached, and cavitary blood removed. Myocardial scarring was classified as subendocardial ( 1.3 mural thickness) and transmural. Acute plaque rupture was defined as identification
Frequência de rupturas agudas de placas e fibroateromas de capa fina em locais de estenose máxima
Tavora, Fabio;Cresswell, Nathaniel;Li, Ling;Fowler, David;Burke, Allen;
Arquivos Brasileiros de Cardiologia , 2010, DOI: 10.1590/S0066-782X2010000200003
Abstract: background: there have been few autopsy studies relating sites of thin cap atheroma (tcfa) to sites of acute plaque rupture in culprit arteries, and sites of maximal narrowing in non-culprit arteries. objective: we aimed to quantify and locate the frequency of tcfa related to the sites of maximal stenosis in atherosclerotic plaques. methods: we studied 88 hearts in victims of sudden death dying with coronary thrombus overlying acute plaque rupture. thin cap atheromas were defined as fibrous cap < 65 microns overlying a necrotic core. percent luminal narrowing was determined at the sites of plaque rupture and thin cap atheromas. results: there were 81 men and 7 women, mean age 50 years ± 9 sd. the plaque rupture was the site of maximal luminal narrowing in 47% of culprit arteries. tcfas were present in 67 hearts (83%). of these, 49 (73%) demonstrated tcfas in the culprit artery; 17 (25%) in the culprit artery only, 32 (48%) in the culprit artery and in a non-culprit artery, and 18 (27%) only in a non-culprit artery. in non-culprit arteries, tcfas represented the maximal site of stenosis in 44% of arteries. the acute rupture site is the site of maximal luminal narrowing in the involved vessel in 47% of hearts from patients dying with acute plaque rupture. conclusion: these data may suggest that luminal narrowing is not a reliable marker for tcfa.
Um modelo de supervis?o clínica na forma??o do estudante de psicologia: a experiência da UFC
Tavora, M?nica Teles;
Psicologia em Estudo , 2002, DOI: 10.1590/S1413-73722002000100015
Abstract: this work presents a supervision model with the objective of promoting the personal and technical growth of new therapists. although the general principles of the person-centered approach and socionomy (psychodrama referential) are pillars of the supervision methodology developed in a clinical training of the psychology curriculum at the federal university of ceará, the proposal is flexible enough to be applied to humanist orientation training in general. the use of socionomy in group sessions presupposes shared learning where each participant is the promoter of his own as well as the growth of others.
Quench dynamics of one-dimensional bosons in a commensurate periodic potential: A quantum kinetic equation approach
Marco Tavora,Aditi Mitra
Physics , 2013, DOI: 10.1103/PhysRevB.88.115144
Abstract: Results are presented for the dynamics arising due to a sudden quench of a boson interaction parameter with the simultaneous switching on of a commensurate periodic potential, the latter providing a source of non-linearity that can cause inelastic scattering. A quantum kinetic equation is derived perturbatively in the periodic potential and solved within the leading order gradient expansion. A two-particle irreducible formalism is employed to construct the stress-momentum tensor and hence the conserved energy. The dynamics is studied in detail in the phase where the boson spectrum remains gapless. The periodic potential is found to give rise to multi-particle scattering processes that relaxes the boson distribution function. At long times the system is found to thermalize with a thermalization time that depends in a non-monotonic way on the amount of energy injected into the system due to the quantum quench. This non-monotonic behavior arises due to the competing effect of an increase of phase space for scattering on the one hand, and an enhancement of the orthogonality catastrophe on the other hand as the quench amplitude is increased. The approach to equilibrium is found to be purely exponential for large quench amplitudes, and more complex for smaller quench amplitudes.
Misdiagnosis of otosclerosis in a patient with enlarged vestibular aqueduct syndrome: a case report
Dayse Tavora-Vieira, Stuart Miller
Journal of Medical Case Reports , 2012, DOI: 10.1186/1752-1947-6-178
Abstract: Our patient, a 56-year-old Caucasian Australian woman, lost the hearing in her right ear following a stapedectomy approximately 25?years ago. It is thought that preoperative imaging was not conducted, while an inadequate (unmasked) audiogram was used to formulate the initial diagnosis of otosclerosis. The hearing in her left ear deteriorated to the point that a cochlear implant was now being considered for her right ear. Imaging performed as part of our pre-cochlear implant battery revealed bilateral enlarged vestibular aqueducts and thus the decision to proceed with a right cochlear implant was made following discussion with our patient and her family in regard to not only general surgical risks but specifically the remote risk that the surgical drilling required during the procedure could risk a deterioration of the hearing in her left ear because of the enlarged vestibular aqueduct on that side.This report illustrates a case of misdiagnosis and mismanagement of bilateral enlarged vestibular aqueduct resulting in profound hearing loss. Fortunately our patient has been successfully implanted with a right cochlear implant with remarkable outcomes.
Pleomorphic sarcoma metastatic to the duodenum?
Fabio Rocha Tavora,Allen Patrick Burke
Rare Tumors , 2009, DOI: 10.4081/rt.2009.e5
Abstract: N/A
Quench dynamics of one-dimensional interacting bosons in a disordered potential: Elastic dephasing and critical speeding-up of thermalization
Marco Tavora,Achim Rosch,Aditi Mitra
Physics , 2014, DOI: 10.1103/PhysRevLett.113.010601
Abstract: The dynamics of interacting bosons in one dimension following the sudden switching on of a weak disordered potential is investigated. On time scales before quasiparticles scatter (prethermalized regime), the dephasing from random elastic forward scattering causes all correlations to decay exponentially fast, but the system remains far from thermal equilibrium. For longer times, the combined effect of disorder and interactions gives rise to inelastic scattering and to thermalization. A novel quantum kinetic equation accounting for both disorder and interactions is employed to study the dynamics. Thermalization turns out to be most effective close to the superfluid-Bose glass critical point where nonlinearities become more and more important. The numerically obtained thermalization times are found to agree well with analytic estimates.
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