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1.
Artículo en Inglés | MEDLINE | ID: mdl-38954307

RESUMEN

PURPOSE: Sexual and gender minority (SGM) populations experience cancer treatment and survival disparities; however, inconsistent sexual orientation and gender identity (SOGI) data collection within clinical settings and the cancer surveillance system precludes population-based research toward health equity for this population. This qualitative study examined how hospital and central registry abstractors receive and interact with SOGI information and the challenges that they face in doing so. METHODS: We conducted semi-structured interviews with 18 abstractors at five Surveillance, Epidemiology, and End Results (SEER) registries, as well as seven abstractors from commission on cancer (CoC)-accredited hospital programs in Iowa. Interviews were transcribed, cleaned, and coded using a combination of a priori and emergent codes. These codes were then used to conduct a descriptive analysis and to identify domains across the interviews. RESULTS: Interviews revealed that abstractors had difficulty locating SOGI information in the medical record: this information was largely never recorded, and when included, was inconsistently/not uniformly located in the medical record. On occasion, abstractors reported situational recording of SOGI information when relevant to the patient's cancer diagnosis. Abstractors further noticed that, where reported, the source of SOGI information (i.e., patient, physician) is largely unknown. CONCLUSION: Efforts are needed to ensure standardized implementation of the collection of SOGI variables within the clinical setting, such that this information can be collected by the central cancer registry system to support population-based equity research addressing LGBTQ + disparities.

3.
Rhinology ; 61(6): 531-540, 2023 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-37453138

RESUMEN

BACKGROUND: Loss of sense of smell is one of the most burdensome symptoms of chronic rhinosinusitis with nasal polyps (CRSwNP) but its relationship to sinus disease on imaging is unclear. Dupilumab improves sense of smell and radiographic severity of sinus disease in patients with CRSwNP. We investigated the relationship of sinus opacification severity and loci to olfactory impairment and dupilumab efficacy in patients with CRSwNP from the SINUS-24/SINUS-52 (NCT02912468/NCT02898454) studies. METHODS: Sinus opacification was evaluated using the Lund-Mackay computed tomography (LMK-CT) score and sense of smell using patient-reported loss of smell (LoS) score, University of Pennsylvania Smell Identification Test (UPSIT) score and the 22-item Sino-Nasal Outcome Test (SNOT-22) smell/taste item. RESULTS: At baseline, 95% of patients (688/724) had impaired sense of smell and opacification was extensive across all sinuses. Greater olfactory impairment was associated with greater opacification, especially in the ethmoid, sphenoid and frontal sinuses. At Week 24, reductions in LMK-CT total score and ethmoid and sphenoid sinus scores with dupilumab were weakly correlated with improvements in sense of smell assessed by LoS, UPSIT and SNOT-22 smell/taste item. More dupilumab than placebo patients achieved clinically meaningful improvement in LMK-CT total score at Week 24 and Week 52. CONCLUSION: Radiographic disease severity on imaging was associated with smell outcomes in this cohort. Opacification of the ethmoid, sphenoid and frontal sinuses was associated with severe smell loss. These data suggest that dupilumab effects on smell may be partly mediated through reduced sinus inflammation.


Asunto(s)
Seno Frontal , Pólipos Nasales , Trastornos del Olfato , Rinitis , Sinusitis , Humanos , Pólipos Nasales/complicaciones , Pólipos Nasales/tratamiento farmacológico , Olfato , Rinitis/complicaciones , Rinitis/diagnóstico por imagen , Rinitis/tratamiento farmacológico , Sinusitis/complicaciones , Sinusitis/tratamiento farmacológico , Enfermedad Crónica , Trastornos del Olfato/etiología , Trastornos del Olfato/complicaciones
4.
Medicina (Kaunas) ; 58(11)2022 Nov 11.
Artículo en Inglés | MEDLINE | ID: mdl-36422166

RESUMEN

Leiomyomas are the most common pelvic tumors. Submucosal fibroids are a common cause of abnormal bleeding and infertility. Hysteroscopic myomectomy is the definitive management of symptomatic submucosal fibroids, with high efficacy and safety. Several techniques have been introduced over time and will be covered in depth in this manuscript. Advances in optics, fluid management, electrosurgery, smaller diameter scopes, and tissue removal systems, along with improved training have contributed to improving the safety and efficiency of hysteroscopic myomectomy.


Asunto(s)
Infertilidad , Leiomioma , Miomectomía Uterina , Neoplasias Uterinas , Femenino , Embarazo , Humanos , Neoplasias Uterinas/cirugía , Neoplasias Uterinas/patología , Histeroscopía/métodos , Leiomioma/cirugía
5.
Obstet Gynecol Clin North Am ; 49(2): 329-353, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35636812

RESUMEN

Hysteroscopic myomectomy is the treatment of choice for symptomatic submucosal myomas, with excellent success rate and low complication rate.


Asunto(s)
Leiomioma , Miomectomía Uterina , Neoplasias Uterinas , Femenino , Humanos , Histeroscopía , Leiomioma/cirugía , Embarazo , Neoplasias Uterinas/cirugía
7.
J Obstet Gynaecol ; 42(1): 146-152, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34009084

RESUMEN

This study was designed to determine the rates of reoperation following laparoscopic management of endometriosis, with additional aims to examine long-term fertility and quality of life outcomes. This is a retrospective study and a prospective questionnaire of subjects who underwent laparoscopic surgery for pelvic pain and/or endometriosis from 2010 to 2015. The rate of reoperation was 8.60%. Following surgery, 83.3% of previously infertile subjects with endometriosis attempted to conceive with an 80.0% success rate. Subjects had significant improvement in each quality of life measurement and most sexual function indices analysed.Impact StatementWhat is already known on this subject? Endometriosis is estimated to affect around 35-50% of women experiencing chronic pelvic pain and/or infertility. Surgical management of endometriosis is recommended for patients who desire fertility, are afflicted by a more severe form of endometriosis, or have had persistent or recurrent pain in spite of medical management.What the results of this study add? The overall rate of reoperation for subjects was low at 8.6%. The majority of infertile patients were able to conceive following surgery.What the implications are of these findings for clinical practice and/or further research? Laparoscopic management of endometriosis is an effective management tool with low rates of reoperation and high efficacy in treating infertility caused by endometriosis.


Asunto(s)
Dolor Crónico/cirugía , Endometriosis/cirugía , Laparoscopía/estadística & datos numéricos , Dolor Pélvico/cirugía , Reoperación/estadística & datos numéricos , Adulto , Tasa de Natalidad , Dolor Crónico/etiología , Endometriosis/complicaciones , Femenino , Humanos , Infertilidad Femenina/etiología , Infertilidad Femenina/cirugía , Dolor Pélvico/etiología , Estudios Prospectivos , Estudios Retrospectivos , Resultado del Tratamiento
8.
Trials ; 21(1): 900, 2020 Oct 30.
Artículo en Inglés | MEDLINE | ID: mdl-33121503

RESUMEN

BACKGROUND: HIV remains a major public health issue, especially in Eastern and Southern Africa. Pre-exposure prophylaxis is highly effective when adhered to, but its effectiveness is limited by cost, user acceptability and uptake. The cost of a non-inferiority phase III trial is likely to be prohibitive, and thus, it is essential to select the best possible drug, dose and schedule in advance. The aim of this study, the Combined HIV Adolescent PrEP and Prevention Study (CHAPS), is to investigate the drug, dose and schedule of pre-exposure prophylaxis (PrEP) required for the protection against HIV and the acceptability of PrEP amongst young people in sub-Saharan Africa, and hence to inform the choice of intervention for future phase III PrEP studies and to improve strategies for PrEP implementation. METHODS: We propose a mixed-methods study amongst young people aged 13-24 years. The first component consists of qualitative research to identify the barriers and motivators towards the uptake of PrEP amongst young people in South Africa, Uganda and Zimbabwe. The second component is a randomised clinical trial (ClinicalTrials.gov NCT03986970, June 2019) using a novel ex vivo HIV challenge method to investigate the optimal PrEP treatment (FTC-TDF vs FTC-TAF), dose and schedule. We will recruit 144 amongst HIV-negative uncircumcised men aged 13-24 years from voluntary male medical circumcision clinics in two sites (South Africa and Uganda) and randomise them into one of nine arms. One group will receive no PrEP prior to surgery; the other arms will receive either FTC-TDF or FTC-TAF, over 1 or 2 days, and with the final dose given either 6 or 20 h prior to surgery. We will conduct an ex vivo HIV challenge on their resected foreskin tissue. DISCUSSION: This study will provide both qualitative and quantitative results to help decide the optimum drug, dose and schedule for a future phase III trial of PrEP. The study will also provide crucial information on successful strategies for providing PrEP to young people in sub-Saharan Africa. TRIAL REGISTRATION: ClinicalTrials.gov NCT03986970 . Registered on 14 June 2019.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Profilaxis Pre-Exposición , Adolescente , Fármacos Anti-VIH/efectos adversos , Infecciones por VIH/diagnóstico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control , Humanos , Masculino , Ensayos Clínicos Controlados Aleatorios como Asunto , Sudáfrica , Uganda , Zimbabwe
9.
Am J Obstet Gynecol ; 223(1): 85.e1-85.e19, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32251649

RESUMEN

The coronavirus disease 2019 pandemic warrants an unprecedented global healthcare response requiring maintenance of existing hospital-based services while simultaneously preparing for high-acuity care for infected and sick individuals. Hospitals must protect patients and the diverse healthcare workforce by conserving personal protective equipment and redeployment of facility resources. While each hospital or health system must evaluate their own capabilities and surge capacity, we present principles of management of surgical services during a health emergency and provide specific guidance to help with decision making. We review the limited evidence from past hospital and community responses to various health emergencies and focus on systematic methods for adjusting surgical services to create capacity, addressing the specific risks of coronavirus disease 2019. Successful strategies for tiered reduction of surgical cases involve multidisciplinary engagement of the entire healthcare system and use of a structured risk-assessment categorization scheme that can be applied across the institution. Our institution developed and operationalized this approach over 3 working days, indicating that immediate implementation is feasible in response to an unforeseen healthcare emergency.


Asunto(s)
Infecciones por Coronavirus/epidemiología , Ginecología/organización & administración , Obstetricia/organización & administración , Neumonía Viral/epidemiología , Servicio de Cirugía en Hospital/organización & administración , Betacoronavirus , COVID-19 , Femenino , Procedimientos Quirúrgicos Ginecológicos , Humanos , Pandemias , Embarazo , Medición de Riesgo , SARS-CoV-2
10.
Obstet Gynecol ; 131(6): 1008-1010, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29742667

RESUMEN

BACKGROUND: Laparoscopic hysterectomies comprise a large proportion of all hysterectomies in the United States. Procedures completed under regional anesthesia pose a number of benefits to patients, but laparoscopic hysterectomies traditionally have been performed under general anesthesia. We describe a case of total laparoscopic hysterectomy under epidural anesthesia with the patient fully awake. CASE: A 51-year-old woman with abnormal uterine bleeding underwent an uncomplicated total laparoscopic hysterectomy, bilateral salpingectomy, and excision of endometriosis. The procedure was completed under epidural anesthesia without intravenous sedation or systemic narcotics. Pneumoperitoneum with a pressure of 12 mm Hg and Trendelenburg to 15° allowed for adequate visualization. Anesthesia was achieved with midthoracic and low lumbar epidural catheters. Bilevel positive airway pressure was used for augmentation of respiratory function. CONCLUSION: With a committed patient, adequate planning, and knowledge of the potential intraoperative complications, regional anesthesia is an option for select women undergoing laparoscopic hysterectomy.


Asunto(s)
Anestesia Epidural , Histerectomía , Laparoscopía , Hemorragia Uterina/cirugía , Femenino , Inclinación de Cabeza , Humanos , Complicaciones Intraoperatorias/etiología , Persona de Mediana Edad , Salpingectomía , Dolor de Hombro/etiología
11.
J Minim Invasive Gynecol ; 24(6): 884-885, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28007590
12.
Clin Oncol (R Coll Radiol) ; 29(4): 256-262, 2017 04.
Artículo en Inglés | MEDLINE | ID: mdl-27964898

RESUMEN

AIMS: Sorafenib is the current standard treatment for advanced hepatocellular carcinoma. We carried out a national audit of UK patients treated with sorafenib as standard-of-care and those treated with systemic therapy in first-line trials. MATERIALS AND METHODS: Sorafenib-treated and trial-treated patients were identified via the Cancer Drugs Fund and local databases. Data were collected retrospectively from medical records according to a standard case report form. The primary outcome measure was overall survival, estimated by the Kaplan-Meier method. RESULTS: Data were obtained for 448 sorafenib-treated patients from 15 hospitals. The median age was 68 years (range 17-89) and 75% had performance status ≤ 1. At baseline, 77% were Child-Pugh A and 16.1% Child-Pugh B; 38% were albumin-bilirubin grade 1 (ALBI-1) and 48% ALBI-2; 23% were Barcelona Clinic Liver Classification B (BCLC-B) and 72% BCLC-C. The median time on sorafenib was 3.6 months, with a mean daily dose of 590 mg. The median overall survival for 448 evaluable sorafenib-treated patients was 8.5 months. There were significant differences in overall survival comparing Child-Pugh A versus Child-Pugh B (9.5 versus 4.6 months), ALBI-1 versus ALBI-2 (12.9 versus 5.9 months) and BCLC-B versus BCLC-C (13.0 versus 8.3 months). For trial-treated patients (n=109), the median overall survival was 8.1 months and this was not significantly different from the sorafenib-treated patients. CONCLUSION: For Child-Pugh A patients with good performance status, survival outcomes were similar to those reported in global randomised controlled trials. Patients with ALBI grade > 1, Child-Pugh B or poor performance status seem to derive limited benefit from sorafenib treatment.


Asunto(s)
Antineoplásicos/uso terapéutico , Carcinoma Hepatocelular/tratamiento farmacológico , Neoplasias Hepáticas/tratamiento farmacológico , Niacinamida/análogos & derivados , Compuestos de Fenilurea/uso terapéutico , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma Hepatocelular/mortalidad , Auditoría Clínica , Bases de Datos Factuales , Femenino , Humanos , Neoplasias Hepáticas/mortalidad , Masculino , Persona de Mediana Edad , Niacinamida/uso terapéutico , Estudios Retrospectivos , Sorafenib , Análisis de Supervivencia , Resultado del Tratamiento , Reino Unido , Adulto Joven
13.
J Minim Invasive Gynecol ; 24(1): 28-35, 2017 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-27614150

RESUMEN

Survivors of pelvic cancer treatment live with the ramifications of pelvic radiation for many years after their cure. Several options are available to preserve ovarian function and fertility in reproductive age women undergoing pelvic radiation. Laparoscopic ovarian transposition is an under-utilized, yet fairly simple surgical procedure to relocate the ovaries away from the radiation field. Although randomized-controlled trials on the outcomes of ovarian transposition are scarce, there is a growing body of evidence on the risks and benefits of this procedure, in terms of prevention of premature ovarian failure, and potentially preserving fertility. In this review, we summarize the available data on the indications, patient selection and outcomes of ovarian transposition, as well as illustrate the technique of the procedure.


Asunto(s)
Preservación de la Fertilidad , Laparoscopía , Órganos en Riesgo , Ovario/cirugía , Neoplasias Pélvicas/radioterapia , Femenino , Humanos , Tratamientos Conservadores del Órgano , Traumatismos por Radiación/prevención & control
14.
Ann Oncol ; 26(9): 1910-1916, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26037798

RESUMEN

BACKGROUND: The superiority of cisplatin and gemcitabine (CisGem) chemotherapy over gemcitabine (Gem) alone in patients with advanced biliary tract cancer (ABC) has been demonstrated in two randomised trials; ABC02 and the Biliary Tract (BT) 22 study. We used a combined dataset from these two trials to investigate the derived neutrophil-to-lymphocyte ratio (dNLR), which is thought to be a prognostic factor associated with clinical outcomes in several solid tumours, including ABC. METHODS: White blood cell (WBC) and absolute neutrophil count (ANC) were available for 379 of 410 patients from ABC-02 and all 83 patients in BT-22. The dNLR was calculated as ANC/(WBC-ANC), as previously specified. We examined the association between dNLR and overall survival (OS) and progression-free survival (PFS), as well as comparing the treatment effect in two patient groups defined by their dNLR level. A high dNLR was defined as ≥3.0, which was approximately the upper tertile value. RESULTS: A total of 462 individual patient records were analysed, 328 with baseline dNLR <3 and 134 with dNLR ≥3. There were 443 deaths in the cohort, and all surviving patients had a dNLR <3. There was strong evidence that dNLR was closely associated with both OS [hazard ratio (HR), 1.62; 95% confidence interval (CI) 1.32-2.01] and PFS (HR, 1.40; 95% CI 1.13-1.72). There was limited evidence (P = 0.10) of a differential effect of CisGem on OS between the two dNLR groups, but this was clearest in the ABC-02 dataset (P = 0.06). There was good evidence (P = 0.008) of an association between low baseline dNLR and long-term survival on a CisGem regimen. There was also good evidence of an association between ECOG performance status (split at 0 and 1 versus 2) on both OS (P < 0.001) and PFS (P = 0.01), but no evidence of a differential treatment effect, with both groups receiving benefit from the addition of cisplatin. CONCLUSIONS: These data confirm that high dNLR is associated with worse OS and PFS, and suggests it may also be predictive of benefit for the addition of cisplatin to gemcitabine in European patients with ABC. Incorporating dNLR into the clinical context may better inform prognosis and chemotherapy decisions in ABC patients.


Asunto(s)
Neoplasias del Sistema Biliar/tratamiento farmacológico , Cisplatino/uso terapéutico , Recuento de Linfocitos , Linfocitos/citología , Neutrófilos/citología , Antineoplásicos/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias del Sistema Biliar/mortalidad , Biomarcadores de Tumor , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapéutico , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Gemcitabina
15.
Artículo en Inglés | MEDLINE | ID: mdl-26737991

RESUMEN

Current prostate biopsy cores have a very low diagnostic yield. These biopsies often fail to diagnose prostate cancer since 90% of cores are histopathologically classified as benign. The concentrations of endogenous fluorophores in prostate tissue vary with disease states. Thus, fluorescence spectroscopy could be utilized to quantify these variations for identification of malignant lesions. We investigated clinical feasibility of a 14 gauge (1.98 mm) optical biopsy needle guided by fluorescence spectroscopy for real-time in vivo prostate cancer diagnosis. Built-in optical sensor has 8×100µm fibers for tissue excitation and a single 200µm fiber to collect spectral data. Custom-made fluorometer has 2 light-emitting diodes at 290 and 340 nm and a spectrometer. User interface for fluorometer operation and data collection was developed using LabView software. Each spectral data acquisition required ~2 seconds. The in vivo biopsies were performed during radical retropubic prostatectomy surgery on the exposed prostate with blood flow to the gland intact. A tissue biopsy core was obtained from each biopsy site after acquisition of spectral data. Above procedure was repeated ex vivo after surgical excision of the prostate. Biopsy cores were histopathologically classified as either benign or malignant and correlated with corresponding spectral data. Partial Least Square analysis was performed to determine diagnostically significant principal components as potential classifiers. A linear support vector machine and leave-one-out cross validation method was employed for tissue classification. Thirteen patients were consented to the study. Histopathological analysis found cancer in 29/208 in vivo and 51/224 ex vivo viable biopsy cores. Study results show 72% sensitivity, 66% specificity, and 93% negative predictive value for in vivo and 75%, 80%, and 93%, respectively, for ex vivo malignant versus benign prostatic tissue classification. Optical biopsy needle has a very high negative predictive value to indicate benign tissue while sufficient sensitivity for targeting areas suspicious for cancer within the prostate gland. Hence, the optical biopsy needle can increase the diagnostic yield of prostate biopsies with consequent improvement in patient care.


Asunto(s)
Biopsia con Aguja Gruesa/métodos , Neoplasias de la Próstata/patología , Espectrometría de Fluorescencia/métodos , Anciano , Biopsia con Aguja Gruesa/instrumentación , Diseño de Equipo , Estudios de Factibilidad , Fluorometría/instrumentación , Humanos , Láseres de Semiconductores , Análisis de los Mínimos Cuadrados , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Prostatectomía/métodos , Neoplasias de la Próstata/cirugía , Sensibilidad y Especificidad , Espectrometría de Fluorescencia/instrumentación , Máquina de Vectores de Soporte
16.
JSLS ; 18(3)2014.
Artículo en Inglés | MEDLINE | ID: mdl-25392645

RESUMEN

BACKGROUND AND OBJECTIVES: Office diagnostic hysteroscopy allows physicians to directly view the endometrial cavity, tubal ostia, and endocervical canal without taking the patient to the operating room (OR). We sought to determine whether office hysteroscopy performed to evaluate abnormal uterine bleeding decreases the need for hysteroscopy performed in the OR and the associated financial and risk implications. METHODS: One hundred thirty patients who underwent office diagnostic hysteroscopy between January 2009 and March 2012 at 2 outpatient clinics in an academic university setting were identified. Records were reviewed from paper charts and electronic medical records. Hospital charts for patients who required hysteroscopy in the OR were reviewed as well. Charge estimates were obtained from our billing department. These results were analyzed for review of the data. RESULTS: Seventy-five of the 130 women who underwent diagnostic office hysteroscopy for abnormal bleeding did not need to undergo hysteroscopy in the OR. This represents estimated savings of $1498 per patient (95% confidence interval, $1051-$1923) in procedure charges. Among the 55 women who underwent OR hysteroscopy, there was 71% agreement between findings on hysteroscopy in the office and in the OR. CONCLUSION: Office hysteroscopy is a useful diagnostic tool that can help decrease the rate of diagnostic hysteroscopy in the OR under anesthesia when used in a select patient population.


Asunto(s)
Histeroscopía/economía , Pacientes Ambulatorios , Hemorragia Uterina/diagnóstico , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Análisis Costo-Beneficio , Femenino , Humanos , Histeroscopía/métodos , Persona de Mediana Edad , Embarazo , Hemorragia Uterina/economía , Adulto Joven
17.
Aquat Toxicol ; 155: 207-12, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25058559

RESUMEN

The activities of glutathione-s-transferase (GST) and cytochrome P-450 1A1 (CYP1A1) enzymes were measured in freshly extracted epidermis of live-biopsied, migrating, southern hemisphere humpback whales (Megaptera novaeangliae). The two quantified enzyme activities did not correlate strongly with each other. Similarly, neither correlated strongly with any of the organochlorine compound groups previously measured in the superficial blubber of the sample biopsy core, likely reflecting the anticipated low levels of typical aryl-hydrocarbon receptor ligands. GST activity did not differ significantly between genders or between northward (early migration) or southward (late migration) migrating cohorts. Indeed, the inter-individual variability in GST measurements was relatively low. This observation raises the possibility that measured activities were basal activities and that GST function was inherently impacted by the fasting state of the sampled animals, as seen in other species. These results do not support the implementation of CYP1A1 or GST as effective biomarkers of organochlorine contaminant burdens in southern hemisphere populations of humpback whales as advocated for other cetacean species. Further investigation of GST activity in feeding versus fasting cohorts may, however, provide some insight into the fasting metabolism of these behaviourally adapted populations.


Asunto(s)
Citocromo P-450 CYP1A1/metabolismo , Glutatión Transferasa/metabolismo , Yubarta/metabolismo , Hidrocarburos Clorados/análisis , Piel/enzimología , Contaminantes Químicos del Agua/toxicidad , Tejido Adiposo/química , Migración Animal/fisiología , Animales , Citocromo P-450 CYP1A1/genética , Femenino , Regulación Enzimológica de la Expresión Génica , Glutatión Transferasa/genética , Masculino , Contaminantes Químicos del Agua/química
18.
Phys Med Biol ; 59(15): 4325-43, 2014 Aug 07.
Artículo en Inglés | MEDLINE | ID: mdl-25030913

RESUMEN

Efforts to assess in utero radiation doses and related quantities to the developing fetus should account for the presence of the surrounding maternal tissues. Maternal tissues can provide varying levels of protection to the fetus by shielding externally-emitted radiation or, alternatively, can become sources of internally-emitted radiation following the biokinetic uptake of medically-administered radiopharmaceuticals or radionuclides located in the surrounding environment--as in the case of the European Union's SOLO project (Epidemiological Studies of Exposed Southern Urals Populations). The University of Florida had previously addressed limitations in available computational phantom representation of the developing fetus by constructing a series of hybrid computational fetal phantoms at eight different ages and three weight percentiles. Using CT image sets of pregnant patients contoured using 3D-DOCTOR(TM), the eight 50th percentile fetal phantoms from that study were systematically combined in Rhinoceros(TM) with the UF adult non-pregnant female to yield a series of reference pregnant female phantoms at fetal ages 8, 10, 15, 20, 25, 30, 35 and 38 weeks post-conception. Deformable, non-uniform rational B-spline surfaces were utilized to alter contoured maternal anatomy in order to (1) accurately position and orient each fetus and surrounding maternal tissues and (2) match target masses of maternal soft tissue organs to reference data reported in the literature.


Asunto(s)
Algoritmos , Feto/diagnóstico por imagen , Fantasmas de Imagen , Radiometría/métodos , Adulto , Femenino , Humanos , Embarazo , Radiometría/normas , Cintigrafía , Valores de Referencia
19.
Int J Womens Health ; 5: 753-63, 2013 Nov 08.
Artículo en Inglés | MEDLINE | ID: mdl-24232977

RESUMEN

Rectovaginal endometriosis is the most severe form of endometriosis. Clinically, it presents with a number of symptoms including chronic pelvic pain, dysmenorrhea, deep dyspareunia, dyschezia, and rectal bleeding. The gold standard for diagnosis is laparoscopy with histological confirmation; however, there are a number of options for presurgical diagnosis, including clinical examination, transvaginal/transrectal ultrasound, magnetic resonance imagining, colonoscopy, and computed tomography colonography. Treatment can be medical or surgical. Medical therapies include birth control pills, oral progestins, gonadotropin-releasing hormone agonists, danazol, and injectable progestins. Analgesics are often used as well. Surgery improves up to 70% of symptoms. Surgery is either ablative or excisional, and is conducted via transvaginal, laparoscopic, laparotomy, or combined approaches. Common surgical techniques involve shaving of the superficial rectal lesion, laparoscopic anterior discoid resection, and low anterior bowel resection and reanastomosis. Outcomes are generally favorable, but postoperative complications may include intra-abdominal bleeding, anastomotic leaks, rectovaginal fistulas, strictures, chronic constipation, and the need for reoperation. Recurrence of rectal endometriosis is a possibility as well. Other outcomes are improved pain-related symptoms and fertility. Long-term outcomes vary according to the management strategy used. This review will provide the most recent approaches and techniques for the diagnosis and treatment of rectovaginal endometriosis.

20.
JSLS ; 15(3): 331-8, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21985719

RESUMEN

OBJECTIVE: To compare laparoscopic anterior discoid resection (ADR) with low anterior resection (LAR). METHODS: This is a retrospective review of a cohort (Canadian Task Force classification II-2) of patients undergoing laparoscopic ADR or LAR at a university hospital. Chart review and telephone questionnaires were conducted to examine long-term outcomes. Preoperative and operative findings, short- and long-term outcomes were compared. SF-12 quality of life scores, need for further interventions, and overall satisfaction were also compared. RESULTS: Twenty-two patients underwent laparoscopic ADR (n 8) or LAR (n 14) for rectosigmoid endometriosis between January 2001 and December 2009. Mean follow-up time was 41.26 months (range, 14 to 70). Patients undergoing laparoscopic ADR had significantly less blood loss and shorter operative time and hospital stay. Patients who required LAR had a significantly higher rate of mucosal involvement (61.5% v. 0%). No statistically significant difference was found in the size, depth of invasion, location of lesions, or operative complications. Fifty percent of the LAR group had several lesions as opposed to 12.5% of the ADR group. Median age was significantly higher in patients who required LAR (39) than in patients who required ADR (32). Three patients in the LAR group (21.4%) had anastomotic strictures; 2 required dilation. The ADR group had consistently higher increments of improvement in bowel symptoms and dyspareunia. Overall satisfaction rate with the procedures was 93.3%. SF-12 scores were comparable between the 2 groups. CONCLUSION: ADR compared with LAR is associated with decreased operative time, blood loss, and hospital stay and a lower rate of anastomotic strictures. Other outcomes and satisfaction rates are comparable between the 2 procedures.


Asunto(s)
Endometriosis/cirugía , Procedimientos Quirúrgicos Ginecológicos/métodos , Enfermedades del Recto/cirugía , Enfermedades del Sigmoide/cirugía , Adulto , Pérdida de Sangre Quirúrgica , Femenino , Humanos , Laparoscopía , Tiempo de Internación , Calidad de Vida , Estudios Retrospectivos , Resultado del Tratamiento
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