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1.
Article in English | LILACS-Express | LILACS | ID: biblio-1535330

ABSTRACT

Objective: The aim of this study was to identify if cochlear implant (CI) users are perceiving a decrease in life quality due to voice problems. This study evaluated 43 CI user's perception of their voice and how it affects their quality of life through a survey. Approach: Forty-three CI users responded to a survey regarding their demographics, details about their CI, the Hearing Health Quick Test (HHQT), the Voice Related Quality of Life (V-RQOL), and the Voice Handicap Index-10 (VHI-10). The survey responses were analyzed using univariate linear regression analysis. Results: Few of the CI users scored below the cut off for normal voice related quality of life. CI users averaged 93.4 out of 100 on the V-RQOL and only four scored abnormally for the VHI-10. Lower scores on the V-RQOL were correlated with the participants having an associate degree and with participants visiting friends, family, and neighbors less often due to hearing loss. The VHI-10 scores were correlated with gender, education levels, difficulty in social situations due to hearing loss, noise exposure, and tinnitus. Limitations of the study: The small n was the primary limitation of this study. Originality: This study was one of the first to examine the voice-related quality of life in CI users. Conclusions: Overall, respondents did not perceive much voice-related difficulty. However, they were more likely to perceive voice-related difficulty if they experienced difficulty hearing in noise and avoided social situations due to hearing loss.


Objetivo: Este estudio identificó si los usuarios de implantes cocleares (IC) están percibiendo una disminución en la calidad de su vida debido a problemas de voz. Además, evaluó la percepción de la voz de 43 usuarios de IC y cómo afecta su calidad de vida a través de una encuesta. Enfoque: Cuarenta y tres usuarios de IC respondieron a una encuesta sobre su demografía, detalles sobre su IC, la Hearing Health Quick Test (HHQT), la Voice Related Quality of Life (V-RQOL) y el Voice Handicap Index-10 (VHI-10). Las respuestas de la encuesta se analizaron mediante un análisis de regresión lineal univariado. Resultados: Pocos usuarios de IC puntuaron por debajo del límite para calidad de vida relacionada con la voz. El promedio V-RQOL fue de 93,4/100; solo 4 participantes tuvieron puntuación anormal en VHI-10. Las bajas puntuaciones en V-RQOL se correlacionaron con título de asociado y menos visitas por pérdida auditiva; las puntuaciones VHI-10, con sexo, educación, dificultad en situaciones sociales, exposición al ruido y tinnitus. Limitaciones del estudio: La pequeña n fue la principal limitación de este estudio. Originalidad: Este estudio fue uno de los primeros en examinar la calidad de vida relacionada con la voz en usuarios de CI. Conclusiones: En general, los encuestados no percibieron mucha dificultad relacionada con la voz. Sin embargo, era más probable que percibieran dificultades relacionadas con la voz si tenían dificultades para oír en ruido y evitaban situaciones sociales debido a la pérdida auditiva.

2.
Clinical Endoscopy ; : 235-238, 2019.
Article in English | WPRIM | ID: wpr-763437

ABSTRACT

Conventional adenomas have historically been considered to be the only screening-relevant colorectal cancer (CRC) precursor lesion. The prevailing paradigm was that most CRCs arise along the chromosomal instability pathway, where adenomas accumulate incremental genetic alterations over time, leading eventually to malignancy. However, it is now recognized that this “conventional” pathway accounts for only about two-thirds of CRCs. The serrated pathway is responsible for most of the remainder, and is a disproportionate contributor to postcolonoscopy CRC. Hallmarks of the serrated pathway are mutations in the BRAF gene, high levels of methylation of promoter CpG islands, and the sessile serrated polyp (SSP). Accumulating evidence shows that SSPs can be considered adenoma-equivalent from the standpoint of CRC screening. SSPs have a higher prevalence than previously thought, and appear to have a relatively long dwell time similar to that of conventional adenomas. In addition, SSPs, whether sporadic or as part of the serrated polyposis syndrome, are associated with increased risk of synchronous and metachronous neoplasia. These features collectively support that SSPs are highly relevant to CRC prevention.


Subject(s)
Adenoma , Chromosomal Instability , Colonoscopy , Colorectal Neoplasms , CpG Islands , Mass Screening , Methylation , Polyps , Prevalence
3.
Clinical Endoscopy ; : 470-477, 2018.
Article in English | WPRIM | ID: wpr-716589

ABSTRACT

BACKGROUND/AIMS: To report the long-term survival and tumor recurrence outcomes in patients with superficial esophageal cancer (SEC) after complete non-curative endoscopic resection (ER). METHODS: We retrieved ER data for 24 patients with non-curatively resected SEC. Non-curative resection was defined as the presence of submucosal and/or lymphovascular invasion on ER pathology. Relevant clinical and tumor-specific parameters were reviewed. RESULTS: The mean age of the 24 study patients was 66.3±8.3 years. Ten patients were closely followed up without treatment, while 14 received additional treatment. During a mean follow-up of 59.0±33.2 months, the 3- and 5-year survival rates of all cases were 90.7% and 77.6%, respectively. The 5-year overall survival rates were 72.9% in the close observation group and 82.1% in the additional treatment group (p=0.958). The 5-year cumulative incidences of all cases of recurrence (25.0% vs. 43.3%, p=0.388), primary EC recurrence (10.0% vs. 16.4%, p=0.558), and metachronous EC recurrence (16.7% vs. 26.7%, p=0.667) were similar between the two groups. CONCLUSIONS: Patients with non-curatively resected SEC showed good long-term survival outcomes. Given the similar oncologic outcomes, close observation may be an option with appropriate caution taken for patients who are medically unfit to receive additional therapy.


Subject(s)
Humans , Esophageal Neoplasms , Follow-Up Studies , Incidence , Pathology , Recurrence , Survival Rate
4.
Clinical Endoscopy ; : 261-269, 2017.
Article in English | WPRIM | ID: wpr-165385

ABSTRACT

BACKGROUND/AIMS: The detection of multifocal lesions is important for the successful management of gastric neoplasms. We investigated the characteristics of missed simultaneous lesions and the reason for the missed diagnoses. METHODS: A total of 140 patients who underwent repeat endoscopy before endoscopic resection between June 2013 and June 2014 were retrospectively reviewed. We classified simultaneous lesions into three groups based on a review of earlier images: group 1, no images of the location of simultaneous lesions were taken; group 2, no corresponding lesion was evident in the previous images; and group 3, simultaneous lesions were visible in the earlier images but a biopsy was not performed. RESULTS: Simultaneous lesions were found in 12 patients (8.6%) with 13 lesions, comprising 10 dysplasia (76.9%) and three adenocarcinoma (23.1%). Regarding the reasons for missed diagnoses, seven lesions (53.8%) were classified as group 3, five (38.5%) as group 1, and the remaining lesion (7.7%) as group 2. There were no significant differences in the characteristics of the patients with and without simultaneous lesions. CONCLUSIONS: Lesions disregarded or unnoticed during endoscopic examination were the main reason for missed diagnosis of simultaneous lesions. Endoscopists should consider the possibility of simultaneous lesions and attempt to meticulously evaluate the entire gastric mucosa.


Subject(s)
Humans , Adenocarcinoma , Biopsy , Diagnosis , Endoscopy , Gastric Mucosa , Retrospective Studies , Stomach Neoplasms
5.
The Korean Journal of Internal Medicine ; : 443-451, 2017.
Article in English | WPRIM | ID: wpr-138439

ABSTRACT

BACKGROUND/AIMS: Approximately 30% of esophageal cancer (EC) patients cannot complete endoscopic ultrasonography (EUS) due to malignant stricture (EUS non-traversability). This study examines clinical implications of EUS non-traversability in patients with advanced locoregional squamous EC receiving preoperative chemoradiotherapy (CRT) followed by esophagectomy. METHODS: We retrieved data on 89 consecutive patients with advanced locoregional squamous EC (stage II or III). Relevant clinical and tumor-specific parameters were reviewed retrospectively. Significant factors affecting survival was determined by Cox regression analysis. RESULTS: EUS non-traversable EC was observed in 26 of 89 patients (29.2%). Median serum albumin level (3.6 g/dL vs. 3.9 g/dL, p = 0.028), tumor length (6.0 cm vs. 4.0 cm, p = 0.002), and percentage of clinical stage III disease (65.4% vs. 38.1%, p = 0.019) were significantly different between the patients with EUS non-traversable and traversable EC, respectively. Patients with EUS non-traversable EC demonstrated a significantly lower 5-year overall survival than patients with EUS traversable EC (30.8% vs. 49.3%, p = 0.023). In multivariate analysis, weight loss ≥ 10% (p = 0.033), EUS non-traversability (p = 0.003), non-response to preoperative CRT (p = 0.002), and incompletion of esophagectomy (p = 0.002) were significant negative factors of survival. CONCLUSIONS: EUS non-traversability has significant negative prognostic implications in patients with advanced locoregional squamous EC receiving preoperative CRT followed by esophagectomy.


Subject(s)
Humans , Carcinoma, Squamous Cell , Chemoradiotherapy , Constriction, Pathologic , Endosonography , Esophageal Neoplasms , Esophagectomy , Multivariate Analysis , Prognosis , Retrospective Studies , Serum Albumin , Weight Loss
6.
The Korean Journal of Internal Medicine ; : 443-451, 2017.
Article in English | WPRIM | ID: wpr-138438

ABSTRACT

BACKGROUND/AIMS: Approximately 30% of esophageal cancer (EC) patients cannot complete endoscopic ultrasonography (EUS) due to malignant stricture (EUS non-traversability). This study examines clinical implications of EUS non-traversability in patients with advanced locoregional squamous EC receiving preoperative chemoradiotherapy (CRT) followed by esophagectomy. METHODS: We retrieved data on 89 consecutive patients with advanced locoregional squamous EC (stage II or III). Relevant clinical and tumor-specific parameters were reviewed retrospectively. Significant factors affecting survival was determined by Cox regression analysis. RESULTS: EUS non-traversable EC was observed in 26 of 89 patients (29.2%). Median serum albumin level (3.6 g/dL vs. 3.9 g/dL, p = 0.028), tumor length (6.0 cm vs. 4.0 cm, p = 0.002), and percentage of clinical stage III disease (65.4% vs. 38.1%, p = 0.019) were significantly different between the patients with EUS non-traversable and traversable EC, respectively. Patients with EUS non-traversable EC demonstrated a significantly lower 5-year overall survival than patients with EUS traversable EC (30.8% vs. 49.3%, p = 0.023). In multivariate analysis, weight loss ≥ 10% (p = 0.033), EUS non-traversability (p = 0.003), non-response to preoperative CRT (p = 0.002), and incompletion of esophagectomy (p = 0.002) were significant negative factors of survival. CONCLUSIONS: EUS non-traversability has significant negative prognostic implications in patients with advanced locoregional squamous EC receiving preoperative CRT followed by esophagectomy.


Subject(s)
Humans , Carcinoma, Squamous Cell , Chemoradiotherapy , Constriction, Pathologic , Endosonography , Esophageal Neoplasms , Esophagectomy , Multivariate Analysis , Prognosis , Retrospective Studies , Serum Albumin , Weight Loss
7.
Journal of Infection and Public Health. 2015; 8 (1): 72-79
in English | IMEMR | ID: emr-155050

ABSTRACT

Hand hygiene [HH] has been identified as one of the simplest, but most important, methods to prevent cross-infection in healthcare facilities. In spite of this fact, the HH compliance rate remains low among healthcare workers [HCWs]. Several factors may affect HH behavior. In this study, we aimed to assess various aspects of HH from the perspective of HCWs. This qualitative study was conducted in two hospital settings in Shiraz, Iran. Eight focus group discussions [FGDs] and six in-depth interview sessions were held with ICU and surgical ward nurses, attending physicians, medical and nursing students and supporting staff. Each FGD and interview was transcribed verbatim, open codes were extracted, and thematic analysis was conducted. Three themes emerged from the thematic analysis including: "the relationship between personal factors and HH compliance," "the relationship between environmental factors and HH compliance" and "the impact of the health system on HH adherence, including the role of adequate health systems, administrative obligations and the effect of surveillance systems." Several factors played a significant role in improving HCWs HH compliance, such as the regular adherence to health system tenets. HH compliance may be improved through application of realistic policies and better supervision. In addition, appropriate education may positively affect HH behavior and attitudes

8.
Psychol. neurosci. (Impr.) ; 7(1): 15-26, Jan.-June 2014. tab
Article in English | LILACS | ID: lil-710020

ABSTRACT

Persistent pain is prevalent in the elderly population, although it is not an inevitable part of aging. It is important to understand how to manage pain effectively in old age, particularly because an increasing number of individuals are becoming older, or living longer. Several problems, less common in younger adults, may complicate the treatment of pain. An accurate pain assessment is required for the most efficient strategy of pain treatment. Challenges to an effective pain assessment include: pain underreporting by patients, atypical manifestations of pain in elderly, age-associated pharmacodynamic and pharmacokinetic changes to specific drugs, other general age-related changes, and misconceptions about tolerance or addiction to opioids. However, physicians are able to provide geriatric patients with appropriate analgesia by using comprehensive assessment involving a multidisciplinary approach, and the appropriate use of various treatment modalities.


Subject(s)
Geriatric Assessment , Health of the Elderly , Pain Measurement/trends , Drug Therapy , Geriatrics , Pain Threshold , Pharmacokinetics , Psychological Techniques
9.
Journal of Infection and Public Health. 2014; 7 (3): 192-198
in English | IMEMR | ID: emr-141899

ABSTRACT

Medical waste management is a major concern for healthcare facilities. One important element is the segregation of infectious waste from domestic, non-infectious waste. The aim of this qualitative study was to identify factors that negatively affect proper segregation at Nemazee Hospital, which is affiliated with Shiraz University of Medical Sciences. Study data came from focus groups involving hospital workers. Participants expressed their opinions regarding barriers to proper segregation of medical wastes. The participants gave their permission to have their comments recorded. Data analyses were based on a grounded theory approach. The results indicated that managerial weakness was an important factor in suboptimal disposal of medical waste. It appears that hospital authorities should pay better attention to educational planning, organizational resources and supervision. Together, these considerations should help reduce waste-management errors. The results also suggest that healthcare worker training needs improvement. In general, patients and their companions, as well as the local population, did not appear to have sufficient knowledge concerning disposal of infectious medical waste. Hospital authorities should conduct a broad review of medical waste management, including improved employee training. This step should have a positive effect on local health, as well as the environment. Improvement is also needed in the infection prevention performance of hospital healthcare workers. This approach should reduce additional production of infectious waste and costs associated with healthcare


Subject(s)
Medical Waste , Waste Management , Hospitals
10.
Indian J Ophthalmol ; 2013 Feb; 61(2): 80-81
Article in English | IMSEAR | ID: sea-147866

ABSTRACT

A misplaced contact lens is a common ocular emergency presenting to the eye casualty. We report a case of lost soft contact lens which migrated in the lid and presented 13 years later with symptomatic eye lid swelling. Authors in the past have reported migration and subsequent retention of lost hard lenses in locations such as the superior fornix and eyelid. To the best of our knowledge, misplaced soft contact lens masquerading as a chalazion has not been reported in the literature. Consideration should be given to the possibility of a retained contact lens in a patient with a history of a lost or misplaced lens, and examination of the ocular surface with double eversion of the upper lid should be performed.

11.
Experimental & Molecular Medicine ; : 281-292, 2012.
Article in English | WPRIM | ID: wpr-186641

ABSTRACT

Previously, we found that high doses of genistein show an inhibitory effect on uterine leiomyoma (UtLM) cell proliferation. In this study, using microarray analysis and Ingenuity Pathways Analysis(TM), we identified genes (up- or down-regulated, > or = 1.5 fold, P < or = 0.001), functions and signaling pathways that were altered following treatment with an inhibitory concentration of genistein (50 microg/ml) in UtLM cells. Downregulation of TGF-beta signaling pathway genes, activin A, activin B, Smad3, TGF-beta2 and genes related to cell cycle regulation, with the exception of the upregulation of the CDK inhibitor P15, were identified and validated by real-time RT-PCR studies. Western blot analysis further demonstrated decreased protein expression of activin A and Smad3 in genistein-treated UtLM cells. Moreover, we found that activin A stimulated the growth of UtLM cells, and the inhibitory effect of genistein was partially abrogated in the presence of activin A. Overexpression of activin A and Smad3 were found in tissue samples of leiomyoma compared to matched myometrium, supporting the contribution of activin A and Smad3 in promoting the growth of UtLM cells. Taken together, these results suggest that down-regulation of activin A and Smad3, both members of the TGF-beta pathway, may offer a mechanistic explanation for the inhibitory effect of a high-dose of genistein on UtLM cells, and might be potential therapeutic targets for treatment of clinical cases of uterine leiomyomas.


Subject(s)
Female , Humans , Activins/genetics , Anticarcinogenic Agents/pharmacology , Cell Line, Tumor , Cell Proliferation/drug effects , Cyclin-Dependent Kinase Inhibitor p15/genetics , Down-Regulation , Genistein/pharmacology , Leiomyoma/metabolism , Oligonucleotide Array Sequence Analysis , Signal Transduction/drug effects , Smad3 Protein/genetics , Transforming Growth Factor beta/genetics , Up-Regulation , Uterine Neoplasms/metabolism
12.
Clinics ; 67(2): 163-170, 2012. ilus, graf, tab
Article in English | LILACS | ID: lil-614641

ABSTRACT

OBJECTIVES: Scintigraphy is generally not the first choice treatment for prostate cancer, although successful studies using bombesin analog radiopeptides have been performed. Recently, a novel peptide obtained using a phage display library demonstrated an affinity for prostate tumor cells. The aim of this study was to compare the use of a bombesin analog to that of a phage display library peptide (DUP-1) radiolabeled with technetium-99m for the treatment of prostate carcinoma. The peptides were first conjugated to S-acetyl-MAG3 with a 6-carbon spacer, namely aminohexanoic acid. METHODS: The technetium-99m labeling required a sodium tartrate buffer. Radiochemical evaluation was performed using ITLC and was confirmed by high-performance liquid chromatography. The coefficient partition was determined, and in vitro studies were performed using human prostate tumor cells. Biodistribution was evaluated in healthy animals at various time points and also in mice bearing tumors. RESULTS: The radiochemical purity of both radiotracers was greater than 95 percent. The DUP-1 tracer was more hydrophilic (log P = -2.41) than the bombesin tracer (log P = -0.39). The biodistribution evaluation confirmed this hydrophilicity by revealing the greater kidney uptake of DUP-1. The bombesin concentration in the pancreas was greater than that of DUP-1 due to specific gastrin-releasing peptide receptors. Bombesin internalization occurred for 78.32 percent of the total binding in tumor cells. The DUP-1 tracer showed very low binding to tumor cells during the in vitro evaluation, although tumor uptake for both tracers was similar. The tumors were primarily blocked by DUP1 and the bombesin radiotracer primarily targeted the pancreas. CONCLUSION: Further studies with the radiolabeled DUP-1 peptide are recommended. With further structural changes, this molecule could become an efficient alternative tracer for prostate tumor diagnosis.


Subject(s)
Animals , Humans , Male , Mice , Aminocaproates/chemistry , Bombesin , Oligopeptides/chemistry , Peptides , Prostatic Neoplasms , Radiopharmaceuticals , Technetium , Aminocaproates/pharmacokinetics , Bombesin/analogs & derivatives , Culture Media , Disease Models, Animal , Isotope Labeling/methods , Mice, Nude , Oligopeptides/pharmacokinetics , Pancreas , Random Allocation , Radiopharmaceuticals/chemistry , Radiopharmaceuticals/pharmacokinetics , Receptors, Bombesin/analysis , Receptors, Bombesin/metabolism , Biomarkers, Tumor/metabolism
13.
Middle East Journal of Anesthesiology. 2011; 21 (1): 61-66
in English | IMEMR | ID: emr-136593

ABSTRACT

To review the complication and success rates associated with CVC placement in patients undergoing cardiovascular surgery depending on the technique utilized and the degree of ultrasound experience of the anesthesia provider. Randomized controlled trial. Operating room and post anesthesia care unit. 325 patients with CAD requiring cardiovascular surgery with an ASA of III or above. The subjects underwent CVC of the Internal Jugular vein with or without ultrasound guidance in preparation for cardiovascular surgery. Utilization of US, carotid artery puncture/cannulation and the presence of post procedure pneumothorax. When comparing the group that had CVC without US versus the group having CVC placement with US, there was significant difference in complication rates based on Z-testing [95% confidence level]. Furthermore, with 90% confidence [based on Z-testing] there was a significant difference in complication rates between the experienced and non experienced US practitioners. With adequate US training, the complications from CVC including carotid artery puncture and pneumothorax can be significantly reduced

14.
Rev. Méd. Clín. Condes ; 21(4): 516-529, jul. 2010. tab, ilus
Article in Spanish | LILACS | ID: biblio-869495

ABSTRACT

La existencia del sistema Renina-Angiotensina-Aldosterona (RAA) fue postulada hace más de 100 años. Posterior al descubrimiento de sus principales componentes se inició una etapa en la que se estableció su rol patogénico en enfermedades cardiovasculares y renales. El desarrollo de fármacos capaces de inhibir la producción o bloquear la acción de los diferentes componentes de este sistema ha revolucionado la forma en la que manejamos la patología cardiovascular y renal. La identificación de nuevos elementos constituyentes de este sistema promete mejorar nuestra comprensión del funcionamiento del mismo y la posibilidad de desarrollar nuevos fármacos más selectivos en sus efectos.Todo ello garantiza que el sistema RAA continúe siendo centro de nuestra atención por muchos años.


The existence of the renin-angiotensin-aldosterone system was first postulated over 100 years ago. Following the identification of all the major components, came the discovery of their potential pathogenicity in cardiovascular and renal disease. The introduction of drugs that inhibit the synthesis or actions of this system has prompted a number of trials that have largely shaped how cardiovascular and renal disease is managed today. The continued discovery of yet more components of this system promises to further our understanding of its influence on disease processes and herald the development of more highly selective drugs, ensuring that the renin-angiotensin-aldosterone system will continue to be a key area of interest for many years to come.


Subject(s)
Cardiovascular Diseases/prevention & control , Kidney Diseases/prevention & control , Angiotensin-Converting Enzyme Inhibitors/pharmacology , Renin-Angiotensin System
15.
Braz. arch. biol. technol ; 53(1): 219-226, Jan.-Feb. 2010. ilus
Article in English | LILACS | ID: lil-543209

ABSTRACT

The aim of this work was to study the fermentation of whey for the production of L(+) lactic acid using Lactobacillus casei. The effect of different process parameters such as pH of the medium, temperature, inoculum size, age of inoculum, agitation and incubation time was monitored to enhance the lactose conversion in whey to L(+) lactic acid. Fermentations were performed without any pH control. The optimization of the fermentation conditions resulted in significant decrease in fermentation time, besides increase in lactose conversion to lactic acid. The optimized process conditions resulted in high lactose conversion (95.62 percent) to L(+) lactic acid production (33.73 g/L) after an incubation period of 36 h.

16.
Braz. j. microbiol ; 39(1): 1-4, Jan.-Mar. 2008. ilus
Article in English | LILACS, SES-SP | ID: lil-480662

ABSTRACT

The development of a bovine papillomavirus (BPV) vaccine is an outstanding challenge. BPV protein L1 gene transfection in the Drosophila melanogaster S2 cell expression system failed to produce L1 protein notwithstanding correct L1 gene insertion. Severe genetic inbalance in the host cell line, including cytogenetic alterations, may account for the lack of protein expression.


O desenvolvimento de uma vacina para papilomavirus bovino (BPV) consiste em grande desafio. A transfecção do gene codificante da proteína L1 de BPV em sistema de células S2 de Drosophila melanogaster não logrou sucesso, apesar da correta inserção da seqüência gênica em vetor apropriado.Graves alterações genéticas na linhagem celular S2, que incluem aberrações cromossômicas, provavelmente estão relacionadas à ausência da expressão da proteína desejada.


Subject(s)
Animals , Cattle , Drosophila melanogaster/genetics , In Vitro Techniques , Papillomavirus Infections , Bovine papillomavirus 1/isolation & purification , Gene Transfer Techniques , Papillomavirus Vaccines/genetics , Methods , Methods
17.
Journal of Veterinary Science ; : 1-8, 2008.
Article in English | WPRIM | ID: wpr-7151

ABSTRACT

Johne's disease is a condition that refers to chronic granulomatous enteritis in ruminants. It is believed that survival and replication of Mycobacterium (M.) paratuberculosis in mononuclear phagocytes plays an important role in the pathogenesis of Johne's disease. However, it is not clear how M. paratuberculosis survives for long time periods in mononuclear phagocytes, nor is it clear which factors trigger multiplication of these bacilli and result in the development of Johne's disease. Investigating the intracellular fate of M. paratuberculosis is challenging because of its very slow growth (more than two months to form visible colonies on media). Existing animal models also have limitations. Despite those obstacles, there has been progress in understanding the intracellular survival tactics of M. paratuberculosis and the host response against them. In this review, we compare known aspects of the intracellular survival tactics of M. paratuberculosis with those of other mycobacterial species, and consider possible mycobactericidal mechanisms of mononuclear phagocytes.


Subject(s)
Animals , Leukocytes, Mononuclear/microbiology , /physiology , Phagocytes/microbiology
18.
Int. braz. j. urol ; 33(6): 746-751, Nov.-Dec. 2007. tab
Article in English | LILACS | ID: lil-476638

ABSTRACT

OBJECTIVE: To determine if intraoperative frozen sections of the bladder neck during radical prostatectomy (RP) could decrease the incidence of final positive surgical margins at the bladder neck. MATERIALS AND METHODS: This prospective cohort study included 51 consecutive men who underwent anatomic RP at University of Florida & Shands Jacksonville. All patients had intraoperative frozen section of bladder neck sent for analysis. Preoperative, operative, and postoperative data were collected and analyzed. Main Outcome Measures: Outcome measures were intraoperative bladder neck margin status, final pathologic bladder neck margin status, and postoperative urinary complications. Median follow-up for the 51 patients was 22 months. RESULTS: The final positive surgical margin rate was 20 percent (10 patients). An additional three patients had positive surgical margins at the bladder neck intraoperatively. These patients then had a wider resection of the affected bladder neck until the frozen sections were negative for cancer or prostatic tissue. Final pathologic evaluation of bladder neck margin was negative for tumor or persistent prostatic tissue in all 51 men. CONCLUSION: With intra-operative frozen sections, we were able to obtain a negligible positive bladder neck margin rate. Surgeons who are still on the learning curve for RP should consider intra-operative frozen section of the bladder neck.


Subject(s)
Aged , Humans , Male , Middle Aged , Frozen Sections , Lymph Node Excision , Prostate/pathology , Prostatectomy/methods , Prostatic Neoplasms/surgery , Urinary Bladder/pathology , Follow-Up Studies , Intraoperative Care , Laparoscopy , Neoplasm Invasiveness , Neoplasm Staging , Postoperative Period , Prospective Studies , Pelvis/pathology , Prostate-Specific Antigen/blood , Prostate/surgery , Prostatic Neoplasms/pathology , Urinary Bladder/surgery
19.
Rev. bras. cir. cabeça pescoço ; 36(2)abr.-jun. 2007. ilus, tab
Article in Portuguese | LILACS-Express | LILACS | ID: lil-482657

ABSTRACT

Introdução: A lesão do nervo laríngeo inferior é uma das complicações dos procedimentos cirúrgicos da glândula tireóide. O risco torna-se maior quando o nervo, que normalmente é recorrente, apresenta variação anatômica, constituindo o nervo laríngeo inferior não-recorrente. Essa variação apresenta-se mais comumente à direita (0,2% a 4%) e, de forma mais rara, à esquerda (0,07%) e está associada a alterações anatômicas de artérias subclávias. O diagnóstico pode ser realizado no pré-operatório através de exames de imagem, o que não é rotina nos serviços de cirurgia. Pacientes e método: Relatamos a detecção intra-operatória do nervo laríngeo inferior não recorrente, todos à direita, em cinco pacientes submetidas à tireoidectomia total. O nervo foi identificado e preservado estruturalmente em todas as pacientes, apesar das dificuldades técnicas para sua localização. Resultados: Exames de videolaringoestroboscopia pós-cirúrgicos confirmaram a preservação funcional dos nervos. Conclusão: O cirurgião que realiza procedimentos de cervicotomia (tireoidectomia, em especial) deve estar alerta a respeito da existência dessa rara variação anatômica e da importância da identificação sistemática do nervo laríngeo inferior, de modo a evitar sua lesão acidental.


Introduction: The injury of the inferior laryngeal nerve is a complication of the surgical procedures on the thyroid gland. It occurs with increased frequency when this nerve has an anomalous anatomy and constitutes the non-recurrent inferior laryngeal nerve. This variation, that is associated with anatomic alterations of subclavian arteries, is more frequent at the right side (0.2% to 4%) and occurs less frequently at the left side (0.07%). The diagnosis can be performed preoperatively with image examinations. However, it is not a routine procedure in the surgery services. Patients and methods: We report the intraoperative detection of the non-recurrent inferior laryngeal nerve at the right side in five patients undergoing total thyroidectomy. In despite of the difficulties, the nerve was identified and preserved structurally in all patients. Results: The postoperative direct laringostroboscopy confirmed the functional preservation of the nerves. Conclusion: The surgeons who work with cervicotomy procedures (principally thyroidectomy) must be aware about the existence of this rare anatomic variation and the importance of the systematic identification of the inferior laryngeal nerve in order to avoid its accidental injury.

20.
Int. braz. j. urol ; 33(3): 347-354, May-June 2007. tab
Article in English | LILACS | ID: lil-459857

ABSTRACT

OBJECTIVE: To assess the utility of enoxaparin in prevention of venous thromboembolism (VTE) in men poorly compliant with pneumatic compression stockings (PCS) in the immediate postoperative period after a radical retropubic prostatectomy (RP). MATERIALS AND METHODS: This retrospective study included 47 men who underwent RP at an inner-city tertiary care hospital. All patients were started on enoxaparin 40 mg subcutaneously 6-8 hours postoperatively and daily while hospitalized. Preoperative, operative, and postoperative data were collected and analyzed. Median follow-up was 18 months. RESULTS: Median patient age was 64 ± 7 years, median prostate-specific antigen level was 4.9 ng/mL and median prostate biopsy-determined Gleason score was 6. Forty-one men (87 percent) underwent a pelvic lymph node dissection. Median operative time was 181 minutes (range 164-450 minutes). Median estimated blood loss was 700 mL. Approximately 36 percent of the men wore PCS the recommended > 19 hours/day. On average PCS were worn 10.3 ± 7.5 hours/day. Postoperative complications were not increased in this cohort. Two patients developed pulmonary embolism requiring long-term anticoagulation. There were no mortalities. CONCLUSIONS: In men non-compliant with PCS, initiation of enoxaparin in the immediate postoperative setting was well-tolerated and maintained a low (4 percent) rate of VTE. Thus, enoxaparin may be useful in adjunct with PCS in these patients.


Subject(s)
Aged , Humans , Male , Middle Aged , Anticoagulants/therapeutic use , Enoxaparin/therapeutic use , Lymph Node Excision/adverse effects , Prostatectomy/methods , Prostatic Neoplasms/surgery , Venous Thromboembolism/prevention & control , Anticoagulants/administration & dosage , Enoxaparin/administration & dosage , Feasibility Studies , Follow-Up Studies , Intermittent Pneumatic Compression Devices , Postoperative Complications , Prostatectomy/adverse effects , Retrospective Studies , Treatment Outcome , Venous Thromboembolism/etiology
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