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1.
Open Forum Infect Dis ; 11(Suppl 1): S76-S83, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38532962

RESUMO

Background: Shigella is an important cause of diarrhea in Bangladeshi children <5 years of age, with an incidence rate of 4.6 per 100 person-years. However, the report was more than a decade old, and data on Shigella consequences are similarly outdated and heterogeneously collected. Methods: Facility-based disease surveillance is planned to be carried out under the Enterics for Global Health (EFGH) Shigella Surveillance Study consortium for 2 years with aims to optimize and standardize laboratory techniques and healthcare utilization and coverage survey, clinical and anthropometric data collection, safety monitoring and responsiveness, and other related activities. The EFGH is a cohesive network of multidisciplinary experts, capable of operating in concert to conduct the study to generate data that will pave the way for potential Shigella vaccine trials in settings with high disease burden. The study will be conducted within 7 country sites in Asia, Africa, and Latin America. Conclusions: We outline the features of the Bangladesh site as part of this multisite surveillance network to determine an updated incidence rate and document the consequences of Shigella diarrhea in children aged 6-35 months, which will help inform policymakers and to implement the future vaccine trials.

2.
Open Forum Infect Dis ; 11(Suppl 1): S34-S40, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38532960

RESUMO

Background: Quantitative polymerase chain reaction (qPCR) targeting ipaH has been proven to be highly efficient in detecting Shigella in clinical samples compared to culture-based methods, which underestimate Shigella burden by 2- to 3-fold. qPCR assays have also been developed for Shigella speciation and serotyping, which is critical for both vaccine development and evaluation. Methods: The Enterics for Global Health (EFGH) Shigella surveillance study will utilize a customized real-time PCR-based TaqMan Array Card (TAC) interrogating 82 targets, for the detection and differentiation of Shigella spp, Shigella sonnei, Shigella flexneri serotypes, other diarrhea-associated enteropathogens, and antimicrobial resistance (AMR) genes. Total nucleic acid will be extracted from rectal swabs or stool samples, and assayed on TAC. Quantitative analysis will be performed to determine the likely attribution of Shigella and other particular etiologies of diarrhea using the quantification cycle cutoffs derived from previous studies. The qPCR results will be compared to conventional culture, serotyping, and phenotypic susceptibility approaches in EFGH. Conclusions: TAC enables simultaneous detection of diarrheal etiologies, the principal pathogen subtypes, and AMR genes. The high sensitivity of the assay enables more accurate estimation of Shigella-attributed disease burden, which is critical to informing policy and in the design of future clinical trials.

3.
Int Urogynecol J ; 32(11): 2937-2946, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34351464

RESUMO

INTRODUCTION AND HYPOTHESIS: The objective was to examine the effect of the surgical removal of vaginally placed prolapse and incontinence mesh on sexual function. We hypothesize that patients with painful complications of mesh will experience improvement in dyspareunia and sexual function after mesh removal. METHODS: The eligible cohort consisted of 133 women who presented with a new onset of pain attributed to mesh-augmented incontinence or prolapse surgery and who elected to undergo mesh removal between 1 August 2012 and 1 July 2013. Sexual function symptoms were assessed before and after mesh removal surgery using the Pelvic Organ Prolapse and Urinary Incontinence Sexual Function Questionnaire short form (PISQ-12). Multivariate analysis was performed to identify predictors of improvement in dyspareunia. RESULTS: Ninety-four patients undergoing mesh removal completed a pre-operative questionnaire, 63 of whom also completed a post-operative questionnaire. After mesh removal, there was a nearly 50% reduction in the proportion of women reporting always experiencing post-operative pain with intercourse among those experiencing pre-operative pain. There was a statistically significant quantitative improvement in pain with intercourse after mesh removal based on mean change score of PISQ-12 question 5 "How often do you experience pain with intercourse?". In multivariate analysis, only history of vaginal delivery was associated with symptom improvement. CONCLUSION: Removal of transvaginal prolapse mesh is associated with improvement in self-reported dyspareunia based on a standardized question on a validated instrument in a small cohort of women. Although larger studies are needed to confirm the relationship between mesh-augmented surgeries and post-procedural dyspareunia, these data suggest that consideration of mesh removal is a reasonable step for patients with painful intercourse attributed to mesh-augmented prolapse and incontinence surgeries.


Assuntos
Dispareunia , Prolapso de Órgão Pélvico , Slings Suburetrais , Dispareunia/etiologia , Dispareunia/cirurgia , Feminino , Humanos , Prolapso de Órgão Pélvico/complicações , Prolapso de Órgão Pélvico/cirurgia , Slings Suburetrais/efeitos adversos , Telas Cirúrgicas/efeitos adversos , Inquéritos e Questionários
4.
Cell Death Dis ; 5: e1067, 2014 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-24556682

RESUMO

Antifolates have a crucial role in the treatment of various cancers by inhibiting key enzymes in purine and thymidylate biosynthesis. However, the frequent emergence of inherent and acquired antifolate resistance in solid tumors calls for the development of novel therapeutic strategies to overcome this chemoresistance. The core of solid tumors is highly hypoxic due to poor blood circulation, and this hypoxia is considered to be a major contributor to drug resistance. However, the cytotoxic activity of antifolates under hypoxia is poorly characterized. Here we show that under severe hypoxia, gene expression of ubiquitously expressed key enzymes and transporters in folate metabolism and nucleoside homeostasis is downregulated. We further demonstrate that carcinoma cells become completely refractory, even at sub-millimolar concentrations, to all hydrophilic and lipophilic antifolates tested. Moreover, tumor cells retained sensitivity to the proteasome inhibitor bortezomib and the topoisomerase II inhibitor doxorubicin, which are independent of cell cycle. We provide evidence that this antifolate resistance, associated with repression of folate metabolism, is a result of the inability of antifolates to induce DNA damage under hypoxia, and is attributable to a hypoxia-induced cell cycle arrest, rather than a general anti-apoptotic mechanism. Our findings suggest that solid tumors harboring a hypoxic core of cell cycle-arrested cells may display antifolate resistance while retaining sensitivity to the chemotherapeutics bortezomib and doxorubicin. This study bears important implications for the molecular basis underlying antifolate resistance under hypoxia and its rational overcoming in solid tumors.


Assuntos
Antineoplásicos/farmacologia , Carcinoma/patologia , Pontos de Checagem do Ciclo Celular/efeitos dos fármacos , Resistencia a Medicamentos Antineoplásicos , Antagonistas do Ácido Fólico/farmacologia , Aminoácidos Dicarboxílicos/farmacologia , Carcinoma/genética , Carcinoma/metabolismo , Hipóxia Celular , Proliferação de Células/efeitos dos fármacos , Dano ao DNA , Relação Dose-Resposta a Droga , Ácido Fólico/metabolismo , Regulação Neoplásica da Expressão Gênica , Células HeLa , Células Hep G2 , Humanos , Inibidores de Proteases/farmacologia , Fatores de Tempo , Inibidores da Topoisomerase II/farmacologia
5.
Pharmacol Biochem Behav ; 96(1): 59-66, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20403372

RESUMO

The present study investigated the effects of the SSRI fluoxetine and the serotonin synthesis blocker--parachlorophenylalanine (PCPA) on morphine self-administration and startle reactivity in rats subjected to social isolation during adulthood. Adult Wistar rats were housed individually or in pairs for 21days. They were treated with fluoxetine, PCPA, or vehicle and tested for their startle response and intake of a morphine solution (0.5mg/ml). Socially restricted rats consumed significantly more morphine solution (but not water) than rats living in pairs, in both one-bottle and in two-bottle tests. They also showed significantly higher startle response amplitude. Daily fluoxetine treatment (5mg/kg i.p.) counteracted these behavioral alterations induced by isolation housing while PCPA treatment (200mg/kg for 3 consecutive days) further exacerbated it. Social isolation may increase morphine self-administration and emotional reactivity in the startle box by affecting serotonin. Antidepressants (such as fluoxetine) may normalize or stabilize serotonin function and restore the behavioral changes produced by isolation.


Assuntos
Fenclonina/farmacologia , Fluoxetina/farmacologia , Morfina/administração & dosagem , Reflexo de Sobressalto/efeitos dos fármacos , Isolamento Social/psicologia , Animais , Masculino , Distribuição Aleatória , Ratos , Ratos Wistar , Reflexo de Sobressalto/fisiologia , Autoadministração , Inibidores Seletivos de Recaptação de Serotonina/farmacologia
6.
J Pharmacol Exp Ther ; 318(3): 1248-56, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16763096

RESUMO

Indomethacin has been suggested for the treatment of Alzheimer's disease (AD), but its use is limited by gastrointestinal and renal toxicity. To overcome this limitation, D-Pharm Ltd. (Rehovot, Israel) developed DP-155 (mixture of 1-steroyl and 1-palmitoyl-2-{6-[1-(p-chlorobenzoyl)-5-methoxy-2-methyl-3-indolyl acetamido] hexanoyl}-Sn-glycero-3-phosophatidyl [corrected] choline), a lecithin derivative of indomethacin. Safety was tested by daily oral administration of DP-155 or indomethacin to rats in a dose range of 0.007 to 0.28 mmol/kg. The prevalence of gastrointestinal ulceration was significantly lower (10-fold) for DP-155 than for indomethacin, and the ulcerations were delayed. Signs of renal toxicity, namely reduced urine output and increased urine N-acetyl glycosaminidase to creatinine ratio, were 5-fold lower for DP-155. Indomethacin, but not an equimolar dose of DP-155, reduced urine bicyclo-prostaglandin E(2). An equimolar oral dose of DP-155 or indomethacin, administered every 4 h for 3 days, was equally efficacious in reducing the levels of Abeta42 in the brains of Tg2576 mice. Indomethacin was the principal metabolite of DP-155 in the serum. After DP-155 oral administration, indomethacin's half-life in the serum and the brain was 22 and 93 h, respectively, compared with 10 and 24 h following indomethacin oral administration. The brain to serum ratio was 3.5 times higher for DP-155 than indomethacin. This finding explains the efficacy of DP-155 in reducing Abeta42 brain levels, despite the low systemic blood concentrations of indomethacin derived from DP-155. In conclusion, compared with indomethacin, DP-155 has significantly lower toxicity in the gut and kidney while maintaining similar efficacy to indomethacin in lowering Abeta42 in the brains of Tg2576 mice. This superior safety profile highlights DP-155's potential as an improved indomethacin-based therapy for AD.


Assuntos
Doença de Alzheimer/tratamento farmacológico , Peptídeos beta-Amiloides/análise , Química Encefálica/efeitos dos fármacos , Indometacina/análogos & derivados , Fragmentos de Peptídeos/análise , Fosfatidilcolinas/uso terapêutico , Animais , Área Sob a Curva , Encéfalo/metabolismo , Dinoprostona/biossíntese , Combinação de Medicamentos , Trato Gastrointestinal/efeitos dos fármacos , Trato Gastrointestinal/patologia , Indometacina/farmacocinética , Indometacina/farmacologia , Indometacina/uso terapêutico , Indometacina/toxicidade , Rim/efeitos dos fármacos , Masculino , Camundongos , Camundongos Transgênicos , Fosfatidilcolinas/farmacocinética , Fosfatidilcolinas/toxicidade , Ratos , Ratos Sprague-Dawley
7.
Urology ; 58(5): 783-5, 2001 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11711364

RESUMO

INTRODUCTION: Sling procedures have been used successfully for the treatment of stress urinary incontinence. Using similar surgical principles to the cadaveric fascia sling, we describe the placement of a thinly woven Prolene mesh under the mid to distal urethra. We describe our technique and report our initial early results. Technical Considerations. A total of 98 consecutive patients were evaluated. All patients had clinical evidence of stress urinary incontinence. The patients underwent a preoperative evaluation with video- urodynamic studies, symptom questionnaire, and cystoscopy. A 1 x 10-cm Prolene mesh was placed under the mid to distal urethra. Postoperatively, the patients were evaluated at 3-month intervals with a symptom questionnaire, physical examination, and postvoid residual volume determination. CONCLUSIONS: We describe a new, simple, quick, inexpensive, and effective method to correct stress urinary incontinence by placing a Prolene mesh under the distal urethra.


Assuntos
Polipropilenos , Telas Cirúrgicas , Incontinência Urinária por Estresse/cirurgia , Vagina/cirurgia , Feminino , Humanos , Técnicas de Sutura
8.
Neuropsychology ; 15(3): 411-20, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11499996

RESUMO

The authors examined the differential effects of neonatal respiratory distress syndrome (RDS)--a condition associated with elevated risk for neonatal hypoxia-ischemia--on the cognitive development of the two sexes. The authors also attempted to establish whether the severity of respiratory distress is linked to cognitive outcome. Findings revealed an appreciable female advantage in cognitive recovery from RDS, yet the association between severity of RDS and outcome did not reach conventional statistical significance level. The sex effect on intelligence test performance was significantly greater for nonverbal subtests than for verbal ones. These results augment earlier findings of sex differences in cognitive recovery from perinatal intracranial hemorrhage. The current investigation also extends these results to a population of children at neonatal hypoxic risk for whom early brain injury was excluded on the basis of neonatal cranial ultrasound findings.


Assuntos
Hipóxia-Isquemia Encefálica/complicações , Síndrome do Desconforto Respiratório do Recém-Nascido/diagnóstico , Síndrome do Desconforto Respiratório do Recém-Nascido/etiologia , Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/epidemiologia , Transtornos Cognitivos/etiologia , Feminino , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Masculino , Gravidez , Complicações na Gravidez , Recuperação de Função Fisiológica , Síndrome do Desconforto Respiratório do Recém-Nascido/epidemiologia , Fatores de Risco , Índice de Gravidade de Doença , Distribuição por Sexo , Escalas de Wechsler
9.
J Urol ; 166(2): 411-5, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11458038

RESUMO

PURPOSE: We reviewed the evolution of appliances and devices used for treating post-prostatectomy urinary incontinence. MATERIALS AND METHODS: We used the MEDLINE to search the literature from 1966 to March 2000 and then manually searched bibliographies to identify studies that our initial search may have missed. RESULTS: The evolution of treatment for post-prostatectomy urinary incontinence may be traced back to the 18th century. Two main schools of thoughts simultaneously evolved. The first fixed urethral compression devices were constructed to enable urethral obstruction by fixed resistance. This outlet resistance allows voiding after intra-abdominal and intravesical pressure is elevated but it is sufficient to prevent leakage between urinations. The other school of thought preferred creation of dynamic urethral compression in which outlet resistance is not fixed but may be decreased when voiding is desired or elevated between urinations. Therapeutic fixed and dynamic urethral compression interventions may be further divided into external or internal compressive devices or procedures. External fixed compression devices may be traced back to antiquity. A penile clamp, similar to the later Cunningham clamp, and a truss designed to compress the urethra by external perineal compression were presented in the Heister textbook of surgery, Institutiones Chirurgicae, as early as 1750. Dynamic compressive devices applied externally were developed much later, such as the first artificial urinary sphincter, described by Foley, in 1947 and the Vincent apparatus, described in 1960. The modern era of fixed urethral compression began in 1961 with Berry. Acrylic prostheses impregnated with bismuth to allow radiographic visualization were produced in various shapes and sizes, and used to compress the urethra against the urogenital diaphragm. In 1968 the University of California-Los Angeles group under the direction of Kaufman began to use cavernous crural crossover to compress the bulbous urethra (Kaufman I). Later 2 other modifications were described, including approximation of the crura in the midline using a polytetrafluoroethylene mesh tape (Kaufman II) and an implantable silicone gel prosthesis (Kaufman III). With the advent of the artificial urinary sphincter pioneered by Scott in 1973 interest in passive urethral compression disappeared in favor of the implantation of an inflatable circumferential prosthetic sphincter. Recently there has been a trend back to passive urethral compression. Synthetic bolsters have been described that passively compress the bulbar urethra to achieve urinary incontinence after radical prostatectomy. CONCLUSIONS: Much creativity has been dedicated to solve the complex and challenging problem of post-prostatectomy urinary incontinence. Devices used for treating this condition may be grouped according to the mechanism of action and how they are applied. Passive urethral compression, long abandoned in favor of dynamic implantable sphincters, has reemerged. Further research in this field may determine which school of thought may provide the best solution for treating post-prostatectomy urinary incontinence.


Assuntos
Prostatectomia/história , Incontinência Urinária/história , História do Século XVIII , História do Século XIX , História do Século XX , Humanos , Masculino , Complicações Pós-Operatórias/terapia , Uretra , Incontinência Urinária/etiologia , Incontinência Urinária/terapia , Urologia/história
10.
Curr Opin Urol ; 11(4): 423-8, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11429505

RESUMO

Pelvic floor dysfunction encompasses a variety of fascial and anatomic defects that can include a combination of cystocele, rectocele, uterine prolapse, enterocele and vault prolapse. Accurate diagnosis of the coexisting abnormalities is essential in planning reconstructive procedures so that the risks of recurrence and reoperation can be minimized. At this time, dynamic magnetic resonance imaging is the study of choice to evaluate the female pelvis and delineate the possible components of pelvic floor dysfunction.


Assuntos
Imageamento por Ressonância Magnética , Diafragma da Pelve/patologia , Diafragma da Pelve/fisiopatologia , Feminino , Humanos , Prolapso , Retocele/patologia , Doenças da Bexiga Urinária/patologia , Prolapso Uterino/patologia
11.
Tech Urol ; 7(2): 87-9, 2001 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-11383999

RESUMO

PURPOSE: Sling procedures have been used successfully to treat stress urinary incontinence (SUI). We report our initial experience with the use of a synthetic polypropylene mesh for treatment of SUI. Based on similar surgical principles of cadaveric fascia sling, we describe placement of a thinly woven polypropylene mesh under the distal urethra. We describe our technique and report our initial results. MATERIALS AND METHODS: There were 146 consecutive patients evaluated. All patients had clinical evidence of SUI. Patients underwent preoperative evaluation with video urodynamics, symptom questionnaire, and cystoscopy. Postoperatively the patients were evaluated at 3-month intervals by symptom questionnaire, physical examination, and postvoid residuals (PVR). One year after the procedure, all patients were asked to fill out a voiding dysfunction and incontinence symptom questionnaire and a validated quality-of-life questionnaire. A flow and PVR also were obtained. RESULTS: Average intraoperative time was 27 minutes for the sling procedure. There were no intraoperative complications and one major postoperative complication. There was no permanent retention and no erosions. Ninety-two percent of patients had either no or rare stress incontinence. Postoperatively, 7% of patients developed de novo urge incontinence. CONCLUSION: We describe excellent results with a new simple, quick, and inexpensive method to correct SUI by placing a polypropylene mesh under the distal urethra.


Assuntos
Polipropilenos , Próteses e Implantes , Telas Cirúrgicas , Incontinência Urinária por Estresse/cirurgia , Cistoscopia , Feminino , Humanos , Implantação de Prótese/métodos , Resultado do Tratamento , Uretra/cirurgia , Urodinâmica , Procedimentos Cirúrgicos Urológicos/métodos
12.
J Urol ; 165(5): 1605-11, 2001 May.
Artigo em Inglês | MEDLINE | ID: mdl-11342927

RESUMO

PURPOSE: Pubovaginal sling procedures offer highly effective treatment for patients with female stress urinary incontinence. A recent modification of this technique is the use of cadaveric fascia lata as a sling material supported with titanium anchors placed bilaterally in the pubic bone. We reviewed our experience with this procedure and assessed our outcome. MATERIALS AND METHODS: A total of 154 consecutive patients underwent a bone anchored, cadaveric fascia pubovaginal sling procedure by a single surgeon from July 1998 to June 1999. All patients were evaluated preoperatively with a detailed history, pelvic examination and radiographic or multichannel video urodynamic studies to diagnose stress urinary incontinence. Our technique begins with the nonincision placement of titanium bone anchors transvaginally into the pubic bone bilaterally. A 2 cm. wide tunnel is created bluntly beneath the vaginal epithelium between the 2 puncture sites with a right angle clamp. A 2 x 7 cm. strip of cadaveric fascia is then passed through the tunnel, into the retropubic space and secured to 2-0 polypropylene sutures attached to the anchors. After securing the sling, the transvaginal puncture sites are closed with 2-0 polyglactin sutures. Patients were seen postoperatively at 6 weeks, and 3 and 6-month followup. Patient age averaged 60 years (range 38 to 85), with an overall average length of followup from surgery of 10.6 months (range 6 to 16). All patients were mailed a self-administered questionnaire and participated in a telephone interview with an office nurse to retrospectively assess outcome and evaluate for recurrent stress urinary incontinence. Recurrent stress urinary incontinence was graded as 0-none, 1-rare, 2-moderate and 3-severe. Repeat pubovaginal sling procedure that was performed in patients with grades 2 to 3 stress urinary incontinence was considered a failure for the purpose of our study. RESULTS: Of all 154 patients 58 (37.6%) had recurrent moderate to severe (grades 2 to 3) stress urinary incontinence at followup. A total of 26 patients underwent a second pubovaginal sling procedure for a reoperation rate of 16.9%. Intraoperative findings at reoperation revealed the titanium anchors to be in position, the polypropylene sutures to be intact, and retropubic fibrosis and scarring of the urethropelvic ligament suggesting appropriate retropubic placement of the sling in all cases. Uniformly all allogenic cadaveric fascia used for sling material appeared to be fragmented, attenuated or simply absent. Average time to reoperation was 9 months (range 3 to 15). CONCLUSIONS: Early results using a bone anchored cadaveric fascia pubovaginal sling procedure were discouraging. Based on findings at reoperation, we attribute this result to the failure of our sling material and have abandoned the use of cadaveric fascia allografts in all pubovaginal slings at our institution.


Assuntos
Parafusos Ósseos , Fascia Lata/transplante , Osso Púbico/cirurgia , Incontinência Urinária por Estresse/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Cadáver , Feminino , Humanos , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Recidiva , Reoperação , Inquéritos e Questionários , Titânio , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos/métodos
13.
Top Magn Reson Imaging ; 12(2): 83-92, 2001 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11296806

RESUMO

The aim of this article is to review the magnetic resonance (MR) findings of pelvic floor descent and pelvic organ prolapse in women. In addition, a detailed grading system of pelvic organ prolapse and pelvic floor relaxation based on dynamic MR imaging is presented. The technique described here uses very fast MR sequences, is reproducible and easily learned by radiologists and technologists, is well accepted by patients, and provides as much information as traditional projectional X-ray imaging. Reference points are the pubococcygeal line and puborectalis muscle sling. The grading system is based on degree of organ prolapse through the hiatus and the degree of puborectalis descent and hiatal enlargement.


Assuntos
Imageamento por Ressonância Magnética , Diafragma da Pelve/patologia , Períneo/patologia , Feminino , Hérnia/diagnóstico , Humanos , Enteropatias/diagnóstico , Imageamento por Ressonância Magnética/métodos , Diafragma da Pelve/anatomia & histologia , Prolapso , Prolapso Retal/diagnóstico , Doenças da Bexiga Urinária/diagnóstico , Prolapso Uterino/diagnóstico
14.
Curr Urol Rep ; 2(5): 399-406, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-12084248

RESUMO

The etiology of stress incontinence is not completely understood. In the past, bladder neck suspensions were performed to correct anatomic abnormalities of the bladder neck and urethral hypermobility. This procedure was attractive because of its simplicity, low morbidity, and excellent early success rate. With time, the successes seen with bladder neck suspensions have not proven to be durable, and alternative surgical procedures have been developed. Until recently, the indications for bladder neck suspension were types I and II stress incontinence; slings were reserved for type III incontinence. However, slings have been shown to be as effective as and more durable than bladder neck suspensions for treatment of all types of stress incontinence; therefore, their popularity has spread. The success of distal urethral slings suggests that it is not necessary to correct anatomic hypermobility to correct stress incontinence. A plethora of new procedures and materials has emerged, leading to an increased need for well-controlled, objective outcome studies in order to understand the impact of these surgeries on our patients.


Assuntos
Incontinência Urinária por Estresse/cirurgia , Esfíncter Urinário Artificial/tendências , Materiais Biocompatíveis/uso terapêutico , Feminino , Humanos
15.
J Urol ; 164(5): 1606-13, 2000 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11025716

RESUMO

PURPOSE: We assessed the merit of dynamic half Fourier acquisition, single shot turbo spin-echo sequence T2-weighted magnetic resonance imaging (MRI) for evaluating pelvic organ prolapse and all other female pelvic pathology by prospectively correlating clinical with imaging findings. MATERIALS AND METHODS: From September 1997 to April 1998, 100 consecutive women 23 to 88 years old with (65) and without (35) pelvic organ prolapse underwent half Fourier acquisition, single shot turbo spin-echo sequence dynamic pelvic T2-weighted MRI at our institution using a 1.5 Tesla magnet with phased array coils. Mid sagittal and parasagittal views with the patient supine, relaxed and straining were obtained using no pre-examination preparation or instrumentation. We evaluated the anterior vaginal wall, bladder, urethra, posterior vaginal wall, rectum, pelvic floor musculature, perineum, uterus, vaginal cuff, ovaries, ureters and intraperitoneal organs for all pathological conditions, including pelvic prolapse. Patients underwent a prospective physical examination performed by a female urologist, and an experienced radiologist blinded to pre-imaging clinical findings interpreted all studies. Physical examination, MRI and intraoperative findings were statistically correlated. RESULTS: Total image acquisition time was 2.5 minutes, room time 10 minutes and cost American $540. Half Fourier acquisition, single shot turbo spin-echo T2-weighted MRI revealed pathological entities other than pelvic prolapse in 55 cases, including uterine fibroids in 11, ovarian cysts in 9, bilateral ureteronephrosis in 3, nabothian cyst in 7, Bartholin's gland cyst in 4, urethral diverticulum in 3, polytetrafluoroethylene graft abscess in 3, bladder diverticulum in 2, sacral spinal abnormalities in 2, bladder tumor in 1, sigmoid diverticulosis in 1 and other in 9. Intraoperative findings were considered the gold standard against which physical examination and MRI were compared. Using these criteria the sensitivity, specificity and positive predictive value of MRI were 100%, 83% and 97% for cystocele; 100%, 75% and 94% for urethrocele; 100%, 54% and 33% for vaginal vault prolapse; 83%, 100% and 100% for uterine prolapse; 87%, 80% and 91% for enterocele; and 76%, 50% and 96% for rectocele. CONCLUSIONS: Dynamic half Fourier acquisition, single shot turbo spin-echo MRI appears to be an important adjunct in the comprehensive evaluation of the female pelvis. Except for rectocele, pelvic floor prolapse is accurately staged and pelvic organ pathology reliably detected. The technique is rapid, noninvasive and cost-effective, and it allows the clinician to visualize the whole pelvis using a single dynamic study that provides superb anatomical detail.


Assuntos
Análise de Fourier , Doenças dos Genitais Femininos/diagnóstico , Imageamento por Ressonância Magnética/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Pessoa de Meia-Idade , Exame Físico , Retocele/diagnóstico , Sensibilidade e Especificidade , Prolapso Uterino/diagnóstico
16.
Urology ; 56(3): 508, 2000 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-10962332

RESUMO

Indigo carmine (sodium indigotindisulfonate), a blue dye, has been widely used by surgeons to identify and to examine the urinary tract and is considered biologically inert and extremely safe. We present a case of severe life-threatening anaphylactoid reaction followed by cardiac arrest associated with intravenous indigo carmine injection.


Assuntos
Anafilaxia/induzido quimicamente , Índigo Carmim/efeitos adversos , Anafilaxia/tratamento farmacológico , Feminino , Humanos , Pessoa de Meia-Idade , Incontinência Urinária por Estresse/cirurgia
17.
Tech Urol ; 6(3): 167-71, 2000 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-10963479

RESUMO

PURPOSE: We describe the technique and results of a simply constructed continence mechanism for continent urinary diversion to the skin based on the ileocecal valve. MATERIALS AND METHODS: During a 3-year period 28 patients underwent construction of a continent stoma using the ileocecal valve; 23 patients were available for evaluation. The various indications for lower urinary tract reconstruction in this patient population included malignancy (4), neurogenic bladder (11), and urethral dysfunction (8). The continence mechanism is provided by the ileocecal valve, with tapering of the distal ileal segment with an absorable stapling device and then securing the catheterizable ileal segment to the serosa of the cecum along an opened taenia to provide an additional level of continence to the ileocecal valve. RESULTS: Continence was achieved in 83% (19 of 23) of patients. Two patients required revision and are now dry, and two patients have not undergone revision and remain wet. No patients have had problems with difficult or traumatic catheterization of the limb or peristomal hernia. One case of stomal stenosis was identified and treated with an outpatient revision. CONCLUSIONS: This technique for construction of a continence mechanism for a continent cutaneous urinary reservoir is simple to create, reliable, and without excess morbidity.


Assuntos
Valva Ileocecal , Derivação Urinária/métodos , Incontinência Urinária/prevenção & controle , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Resultado do Tratamento , Uretra/cirurgia , Bexiga Urinária/cirurgia , Doenças Urológicas/cirurgia
18.
Urology ; 54(6): 1085-7, 1999 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-10604714

RESUMO

It remains quite difficult to distinguish a high-grade cystocele from an enterocele or high rectocele on the basis of physical examination findings alone. We have employed the use of a cystoscopic light test during preoperative or intraoperative endoscopy to assist in differentiating these entities.


Assuntos
Cistoscopia/métodos , Retocele/diagnóstico , Doenças da Bexiga Urinária/diagnóstico , Diagnóstico Diferencial , Feminino , Humanos , Luz , Prolapso
19.
Urology ; 54(5): 819-22, 1999 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-10565740

RESUMO

OBJECTIVES: Numerous techniques have been described for supporting the vaginal vault after enterocele repair and hysterectomy. We describe a transvaginal culdosuspension that obliterates the cul-de-sac and supports the vaginal cuff high on the levator plate. The normal vaginal axis is restored, and adequate vaginal depth is provided for normal sexual activity. METHODS: One hundred four patients, aged 48 to 90 years (mean age 71), underwent transvaginal culdosuspension in conjunction with enterocele repair (62 patients), vaginal hysterectomy (20 patients), or both (22 patients). Two culdosuspension sutures support the vaginal vault to the origin of the sacrouterine and cardinal ligaments, and the cul-de-sac is obliterated with two pursestring sutures. Concomitant prolapse was repaired in 82 patients, bladder neck suspension in 50, cystocele repair in 45, and rectocele repair in 76. RESULTS: One hundred patients were followed up at a mean of 17.3 months (range 6.5 to 35). Recurrence of enterocele or vault prolapse occurred in 4 patients. All patients who had preoperative stress incontinence were cured of leakage. Complications were rare, and there were no instances of vaginal foreshortening, urinary retention, vaginal skin necrosis, bladder perforation, or rectovaginal fistula. CONCLUSIONS: Transvaginal culdosuspension is a safe and effective procedure for treating and preventing enterocele and vaginal vault prolapse. This technique restores the normal vaginal depth and axis, resulting in a sexually functional vagina.


Assuntos
Herniorrafia , Histerectomia , Suturas , Prolapso Uterino/prevenção & controle , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Pessoa de Meia-Idade
20.
Neuropsychology ; 13(4): 598-608, 1999 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-10527069

RESUMO

The authors examined the relationships between gestational maturity, perinatal hypoxic risk, and intellectual outcome in early school-age children. The sample was composed of 48 children whose arterial pH obtained within 3 hr after delivery was between 7.3 (the lower end of the normal range) and 7.1 (the lower end of the moderately acidotic range). Gestational maturity did not account for a significant proportion of variance in outcome, whereas arterial pH was found to be significantly related to subsequent intellectual performance. The observed relationship between peripartum arterial pH and cognitive performance is especially noteworthy because the arterial pH range was restricted. The authors conclude that a "dose-response" relationship can be observed between arterial pH and intellectual outcome at early school age, even when the lower end of the acidotic range is truncated above the pH level that is thought to reflect severe asphyxia neonatorum.


Assuntos
Acidose/sangue , Asfixia Neonatal/sangue , Asfixia Neonatal/complicações , Transtornos Cognitivos/etiologia , Deficiências do Desenvolvimento/etiologia , Recém-Nascido Prematuro/sangue , Inteligência , Índice de Apgar , Peso ao Nascer , Gasometria , Criança , Pré-Escolar , Transtornos Cognitivos/psicologia , Deficiências do Desenvolvimento/psicologia , Feminino , Seguimentos , Idade Gestacional , Humanos , Recém-Nascido , Masculino , Estudos de Amostragem , Análise de Sobrevida
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