RESUMO
Introduction: Historically, percutaneous nephrolithotomy (PCNL) in horseshoe kidney (HSK) patients has been performed in the prone position. Nevertheless, thanks to the spread of the supine PCNL technique for patients with urinary stones and normal renal anatomy, some retrospective studies have already reported on supine PCNL and HSK, showing the effectiveness and safety of the procedure. Herein we report our experience with supine PCNL in a subset of patients with urolithiasis. Material and methods: Prospective data were collected for all HSK patients who underwent supine PCNL at our institution from June 2016 to June 2023. Stone volume was reported as the volume of a single stone or the sum of the volumes of multiple stones on computed tomography (CT) images. Patients were reported to be stone-free if there were no stones on postoperative non-contrast CT (NCCT) exam. Peri-/postoperative complications were reported according to the Clavien-Dindo classification system. The primary endpoint of the study was stone-free rate (SFR) and the secondary endpoints were Clavien-Dindo complications Grade I or higher. Results: A total of 35 patients met the inclusion criteria and were enrolled in the study. Forty-eight procedures were analyzed. SFR was 72.9% at 1-month follow-up. In 11 out of 48 procedures (22.9%) Clavien-Dindo Grade I-II complications were recorded. In one case Clavien-Dindo Grade IIIa complication was observed. Conclusions: In this prospective study of 35 HSK patients who underwent 48 procedures, supine PCNL was safe and effective, with minimal morbidity.
RESUMO
ABSTRACT: Dysfunctional parenting styles are risk factors for eating disorders (EDs). In this observational study, we examined 57 women with ED, a psychiatric control group (n = 26), and healthy participants (n = 60). Several instruments were administered: Defense Style Questionnaire (DSQ-40) to examine the type of defense mechanism used, Parental Bonding Instrument (PBI) to investigate the perception of the relationship with parents, Eating Disorder Examination Questionnaire and Eating Disorder Inventory-3 to assess the severity of the ED, and Body Shape Questionnaire to investigate the perception of their body shape. In patients with anorexia and bulimia, neurotic factor (p = 0.007) and immature factor (p = 0.002) are associated with perception of relationship with their own parents. In the PBI, maternal care was associated with higher scores in the DSQ-40 in the immature factor (p = 0.012), whereas paternal overprotection was associated with lower scores in the DSQ-40 in the mature factor (p = 0.016). Patients with anorexia and bulimia overutilize more neurotic and primitive defense mechanisms compared with nonclinical subjects, and this use is associated with greater severity of eating symptomatology. This can be related to diversified ego forces, can inform about the nature and severity of disease, and can characterize prognostic and psychotherapeutic value.
Assuntos
Bulimia Nervosa , Bulimia , Humanos , Feminino , Bulimia/psicologia , Poder Familiar/psicologia , Anorexia , Mecanismos de DefesaRESUMO
Background: Few clinical data are available on thulium fiber laser (TFL) and conservative treatment of upper urinary tract urothelial carcinoma (UTUC). Objective: To assess the effectiveness and safety of TFL in the conservative treatment of UTUC in terms of both tumor ablation and complication rates in a short-term follow-up. Design setting and participants: Retrospective data were collected from all patients who underwent endoscopic management of UTUC between January 2021 and April 2022. All patients with nonmetastatic UTUC who were deemed suitable candidates (low- and high-grade disease) for conservative treatment were reviewed. Intervention: All patients underwent ureteroscopy with biopsy and at 2, 6, and 12 mo after the first surgery. UTUC ablation was achieved using TFL. Outcome measurements and statistical analysis: Clinical data were collected in a dedicated database. Intra- and postoperative outcomes were assessed. A descriptive statistical analysis was performed. Results and limitations: In total, 28 patients were evaluated. Thirteen patients (46.4%) were included in the low-risk UTUC treatment group and 15 (53.6%) in the high-risk group. The mean tumor size was 15.3 ± 5.7 mm. Biopsy showed low- and high-grade UTUCs in 19 and eight patients, respectively. Only one biopsy was inconclusive for achieving a diagnosis. At the second procedure biopsy, no tumor was found in 19 cases (70.4%), whereas seven had tumors confirmed (25.9%). To date, 23 and 17 out of 26 patients completed the 6- and 12-mo follow-up, respectively. UTUC recurrence was detected in five of 23 patients (21.7%) and in three of 17 patients (17.7%) at 6 and 12 mo, respectively. A total of 95 procedures were performed. No intraoperative complications were observed. In ten of the 95 procedures (10.5%), Clavien-Dindo grade I-II postoperative complications were experienced. Only one grade IIIB postoperative complication was noted. Conclusions: TFL is a safe and effective technique for conservative treatment of UTUC in a short-term follow-up. Optimal tumor ablation and fine hemostatic control were achieved without major complications. Patient summary: In this study, we looked at the outcomes of upper urinary tract tumors conservatively treated with the new thulium fiber laser (TFL). We conclude that TFL represents a safe and effective technique for the treatment of this kind of tumors in a short-term follow-up.
RESUMO
PURPOSE: Anorexia nervosa-restrictive subtype (AN-R) is a life-threatening disorder relying on behavioural abnormalities, such as excessive food restriction or exercise. Such abnormalities may be secondary to an "objectified" attitude toward body image and self. This is the first study exploring the impact of anomalous self-experience (ASEs) on abnormal body image attitude and eating disorder (ED) symptomatology in individuals with AN-R at onset. METHODS: We recruited Italian female participants, 40 with AN-R (mean age 18.3 ± 2.3) and 45 age and educational level-matched healthy controls (HCs) (mean age 18.2 ± 2.6). ASEs, body image attitude, and ED symptom severity were assessed through the examination of anomalous self-experience (EASE), the body uneasiness test (BUT), and the eating disorder examination questionnaire (EDE-Q), respectively. We conducted multivariate analysis of variance to investigate distribution patterns of variables of interest, and mediation analysis to test the effect of ASEs and body image on ED symptomatology. RESULTS: Individuals with AN-R scored higher than HCs on the EASE (p < .0001). A direct effect of ASEs on ED severity (p = 0.009; bootstrapped LLCI = 0.067, ULCI = 0.240) was found in AN-R. After modelling the effect of abnormal body image attitude, the relationship between EASE total score and ED symptomatology was significantly mediated by BUT (p = 0.002; bootstrapped LLCI = 0.001, ULCI = 0.172). CONCLUSION: Although the exact pathways linking AN-R to self-disorder remain to be identified, a broader exploration of transdiagnostic features in AN, including explorations of different dimensions of self-experience and intersubjectivity, may shed further light on the clinical phenomenology of the disorder. LEVEL OF EVIDENCE: Level III, case-control analytic study.
Assuntos
Anorexia Nervosa , Bulimia Nervosa , Transtornos da Alimentação e da Ingestão de Alimentos , Adolescente , Adulto , Anorexia Nervosa/complicações , Anorexia Nervosa/diagnóstico , Atitude , Imagem Corporal , Bulimia Nervosa/diagnóstico , Transtornos da Alimentação e da Ingestão de Alimentos/complicações , Feminino , Humanos , Adulto JovemRESUMO
OBJECTIVES: In this study, we aimed at investigating the relationship between diverticula and in vivo colonic features such as total colon length (TCL), using CTC. We also evaluated polyps, neoplastic lesions and the correlation among them. METHODS: This retrospective study considered a series of patients who underwent CTC in our Hospital from 2010 to 2018. We evaluated TCL, the length of each colon segments and sigmoid colon diameter using dedicated software. We verified the presence of diverticula, polyps and neoplasm and measured the number of diverticula using a five-point class scale, evaluating the colonic segments involved by the disease and the number of diverticula for each segment. A logistic regression model was used to analyse the relationship between diverticula and the patients' age, sigmoid colonic diameter and the length of each colonic segments. RESULTS: The population finally included 467 patients, 177 males and 290 females (average age of 67 ± 12; range 45-96). The mean TCL was 169 ± 25 cm (range 115-241 cm). Out of the 467, 323 patients (69%) had at least one analyse. The patients with diverticula had a mean TCL significantly shorter than patients without diverticula (164 ± 22 vs 181 ± 27 cm; p = 0.001). Among the different variables, sigmoid colon length, sigmoid colon diameter and patient's age were correlated with diverticula (p < 0.01). Otherwise there is no association among diverticula, polyps and neoplasm. CONCLUSIONS: The presence of colonic diverticula was significantly inversely correlated with TCL.The TCL was not significantly correlated with polyps and cancers. ADVANCES IN KNOWLEDGE: The presence of colonic diverticula was significantly inversely correlated with total colon length, and in particular they significantly decreased with increasing colon length; our observation could contribute to the comprehension of diverticula pathogenesis.
Assuntos
Colo/anatomia & histologia , Colo/diagnóstico por imagem , Neoplasias do Colo/diagnóstico por imagem , Pólipos do Colo/diagnóstico por imagem , Colonografia Tomográfica Computadorizada , Divertículo do Colo/diagnóstico por imagem , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos RetrospectivosRESUMO
BACKGROUND AND OBJECTIVES: Gambling disorder (GD) leads to impaired socioeconomical functioning and increased social costs. Although the research on GD has been rising over the years, approved treatment guidelines are currently not available. The aim of this study was to systematically review the literature on the pharmacological and psychosocial treatment of adults with GD, and to identify possible agreed-upon standards of care. METHODS: MEDLINE, PubMed, Cochrane, Web of Science, Embase, and CINAHL electronic databases were searched up to April 2019 for systematic reviews on pharmacological, psychosocial, and combined treatment of adults with GD. Twenty-six studies were eventually included in this meta-review. RESULTS: Studies reported promising results of opioid antagonists and mood stabilizers in reducing GD-related symptomatology. Lithium was particularly effective in subjects with comorbid bipolar disorders. Cognitive behavioral therapy (CBT) was the most commonly used psychological intervention and reduced global severity, gambling frequency, and financial loss. Motivational interviewing (MI) seemed to improve several GD domains, alone or in combination with CBT. Self-help interventions (SHIs) showed some efficacy in promoting treatment-seeking, and in combination with other treatments. CONCLUSIONS: We found moderate evidence of effect for CBT, but weaker evidence for pharmacotherapy and SHIs. Results suggested some efficacy for MI in the short but not in the long term. It is likely that certain interventions might be more effective than others on specific features of GD. Further studies are needed to compare the efficacy and acceptability of individual and combined psychosocial and pharmacological interventions, to deliver patient-tailored treatments.
Assuntos
Transtorno Bipolar , Terapia Cognitivo-Comportamental , Jogo de Azar , Entrevista Motivacional , Adulto , Jogo de Azar/terapia , Humanos , Revisões Sistemáticas como AssuntoRESUMO
PURPOSE: The evaluation of the surgical margin in breast conservative surgery is a matter of general interest as such treatments are subject to the critical issue of margin status as positive surgical margins can undermine the effectiveness of the procedure. The relatively unexplored ability of millimeter-wave (mm-wave) spectroscopy to provide insight into the dielectric properties of breast tissues was investigated as a precursor to their possible use in assessment of surgical margins. METHODS: We assessed the ability of a mm-wave system with a roughly hemispherical sensitive volume of â¼3â¯mm radius to distinguish malignant breast lesions in prospectively and consecutively collected tumoral and non-tumoral ex-vivo breast tissue samples from 91 patients. We characterized the dielectric properties of 346 sites in these samples, encompassing malignant, fibrocystic disease and normal breast tissues. An expert pathologist subsequently evaluated all measurement sites. RESULTS: At multivariate analysis, mm-wave dielectric properties were significantly correlated to histologic diagnosis and fat content. Further, using 5-fold cross-validation in a Bayesian logistic mixed model that considered the patient as a random effect, the mm-wave dielectric properties of neoplastic tissues were significantly different from normal breast tissues, but not from fibrocystic tissue. CONCLUSION: Reliable discrimination of malignant from normal, fat-rich breast tissue to a depth compatible with surgical margin assessment requirements was achieved with mm-wave spectroscopy.
Assuntos
Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Espectroscopia Dielétrica/estatística & dados numéricos , Margens de Excisão , Mastectomia Segmentar , Adulto , Idoso , Idoso de 80 Anos ou mais , Teorema de Bayes , Mama/patologia , Mama/cirurgia , Espectroscopia Dielétrica/métodos , Feminino , Doença da Mama Fibrocística/patologia , Doença da Mama Fibrocística/cirurgia , Humanos , Modelos Logísticos , Pessoa de Meia-Idade , Análise Multivariada , Estudos Prospectivos , Reprodutibilidade dos Testes , Sensibilidade e EspecificidadeRESUMO
AIMS: Psoriasis is a chronic inflammatory skin disease with a complex etiology, involving the immune system, genetic factors, and external/internal triggers, with psychosomatic aspects. The aim of the study was to investigate childhood trauma and resilience in a psoriatic sample compared with healthy controls. Correlations between childhood trauma, resilience, quality of life, clinical data and psoriatic features were also evaluated. METHODS: Seventy-seven psoriatic patients and seventy-six homogeneous healthy controls were enrolled. We used the Psoriasis Area and Severity Index (PASI) to assess the severity of psoriasis and the Skindex-29 to measure health-related quality of life. The psychometric battery included the Childhood Trauma Questionnaire (CTQ) and the Connor-Davidson Resilience Scale (CD-Risc) to assess trauma exposure and resilience, respectively. RESULTS: Psoriatic patients showed a significant prevalence of childhood trauma and a lower resilience level compared to healthy controls. Associations between traumatic experiences, low resilience and reduced quality of life in psoriatic subjects were also observed. CONCLUSIONS: A multidisciplinary approach is helpful to investigate clinical aspects, trigger factors and psychophysiological stress response in psoriatic subjects. Improving resilience with an early psychological intervention focused on self-motivation and strengthening of self-efficacy could facilitate the management of psoriasis.
Assuntos
Psoríase/psicologia , Trauma Psicológico/psicologia , Resiliência Psicológica , Adulto , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Psicometria , Qualidade de Vida , Inquéritos e QuestionáriosRESUMO
Various kinds of image-guided techniques have been successfully applied in the last years for the treatment of tumours, as alternative to surgical resection. High intensity focused ultrasound (HIFU) is a novel, totally non-invasive, image-guided technique that allows for achieving tissue destruction with the application of focused ultrasound at high intensity. This technique has been successfully applied for the treatment of a large variety of diseases, including oncological and non-oncological diseases. One of the most fascinating aspects of image-guided ablations, and particularly of HIFU, is the reported possibility of determining a sort of stimulation of the immune system, with an unexpected "systemic" response to treatments designed to be "local". In the present article the mechanisms of action of HIFU are described, and the main clinical applications of this technique are reported, with a particular focus on the immune-stimulation process that might originate from tumour ablations.
Assuntos
Ablação por Ultrassom Focalizado de Alta Intensidade/métodos , Imunoterapia/métodos , Neoplasias/imunologia , Neoplasias/terapia , Ultrassonografia de Intervenção , HumanosRESUMO
Head and neck squamous cell carcinoma is the sixth most common cancer diagnosed worldwide and the eighth most common cause of cancer death. Malignant tumors of the oral cavity, oropharynx, and larynx can be treated by surgical resection or radiotheraphy with or without chemotheraphy and have a profound impact on quality of life functions, including swallowing. When surgery is the chosen treatment modality, the patient may experience swallowing impairment in the oral and pharyngeal phases of deglutition. A videofluoroscopic study of swallow enables the morphodynamics of the pharyngeal-esophageal tract to be accurately examined in patients with prior surgery. These features allow an accurate tracking of the various phases of swallowing in real time, identifying the presence of functional disorders and of complications during the short- and long-term postoperative recovery. The role of imaging is fundamental for the therapist to plan rehabilitation. In this paper, the authors aim to describe the videofluoroscopic study of swallow protocol and related swallowing impairment findings in consideration of different types of surgery.
RESUMO
BACKGROUND: Current prognostication of gastrointestinal stromal tumours is validated on/applies to resected tumours, mainly because surgery is recommended whenever possible. However, pre-treatment prognostication is increasingly warranted, considering the follow-up strategy recently admitted for expectedly low-risk tumours and the possible distinctive molecular features/spontaneous regression of some small cases. AIMS: To investigate whether endoscopic ultrasound-guided fine-needle tissue acquisition-biopsies reflect prognosticators of resected gastrointestinal stromal tumours, for possibly developing reliable pre-treatment prognostic criteria. METHODS: The applicability/reliability of mitotic index/5mm(2) and MIB1 proliferative index/1000 cells were tested in 35 endoscopic ultrasound-guided fine-needle tissue acquisition-biopsies diagnosed as gastrointestinal stromal tumour, subsequently resected without intervening therapy, consecutively collected in thirty months. Size and mitotic/proliferative indexes were compared with resection specimens. The feasibility of bioptic genotyping was also tested. RESULTS: 35 patients were studied (45.7% males; mean age 61.6 years, range 26-83 years). Mitotic/proliferative indexes were determinable in 68.6%/88.6% of biopsies, respectively; they were nevertheless underestimated, as happened with endoscopic ultrasound-determined tumour size. Bioptic genotyping revealed reliable. CONCLUSIONS: Endoscopic ultrasound-guided fine-needle tissue acquisition does not reliably reflect gastrointestinal stromal tumours' proliferation and size. Alternative parameters should be validated for a pre-surgical prognostic classification. Considering the emerging potentially prognostic genetic markers in gastrointestinal stromal tumours, the reliability of bioptic genotyping is a promising result.
Assuntos
Biópsia por Agulha Fina/métodos , Endossonografia , Neoplasias Gastrointestinais/patologia , Tumores do Estroma Gastrointestinal/patologia , Biópsia Guiada por Imagem/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Proliferação de Células , Estudos de Viabilidade , Feminino , Neoplasias Gastrointestinais/diagnóstico por imagem , Tumores do Estroma Gastrointestinal/diagnóstico por imagem , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Estudos RetrospectivosRESUMO
INTRODUCTION: Obesity is a risk factor for gastroesophageal reflux and oesophageal adenocarcinoma. However, only a few studies have examined obesity and lifestyle risk factors in relation to Barrett's oesophagus. In this prospective study we assessed the presence of oesophagitis and Barrett's oesophagus in obese patients selected for laparoscopic gastric banding. METHODS: 1049 obese patients were referred for laparoscopic gastric banding (233 males; mean age 41.0±10.7 years). oesophagogastroduodenoscopy was performed before surgery to check for upper gastrointestinal tract disorders, especially hiatal hernia, signs of inflammation and/or erosions and/or ulcers of the oesophageal mucosa, and Barrett's epithelium. RESULTS: Mean body mass index was 45.15±6.46 kg/m(2). Overall 86/1049 (8.2%) patients had endoscopic signs of oesophagitis: 84 grade A, 1 grade B and 1 grade C, according to the Los Angeles classification. Hiatal hernia was detected in 127 patients (12.1%), with a mean size of 2.1±0.7 cm (range 1-4 cm); of these, 38 (29.9%) had oesophagitis (37 grade A and 1 grade B). No patients had any visible length of columnar epithelium. CONCLUSIONS: We could not confirm a high prevalence of Barrett's oesophagus in this series of obese patients.
Assuntos
Esôfago de Barrett/complicações , Esofagite/complicações , Hérnia Hiatal/complicações , Obesidade/complicações , Adulto , Esôfago de Barrett/epidemiologia , Índice de Massa Corporal , Esofagite/epidemiologia , Esofagite/patologia , Feminino , Gastroplastia , Hérnia Hiatal/patologia , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos ProspectivosRESUMO
BACKGROUND: Three previous studies from the same institution have reported that transoral incisionless fundoplication (TIF) with the EsophyX device is effective for creating a continent gastroesophageal valve and for good functional results as measured only by pH-metry in patients with gastroesophageal reflux disease (GERD). The objective of the present study was to evaluate the effect of TIF on symptoms, use of proton pump inhibitors (PPI), esophageal motility, and pH-impedance in patients with symptomatic GERD. METHODS: Twenty consecutive patients were enrolled to complete the GERD-HRQL and GERD-QUAL questionnaires while on and off PPI. They were also examined by upper gastrointestinal (GI) endoscopy to determine Hill grade and Jobe length of the gastroesophageal valve, and to check for hiatal hernia and esophagitis, esophageal manometry, and pH-impedance before and 6 months after TIF. RESULTS: Six months after TIF, the GERD-HRLQ and GERD-QUAL scores off-PPI therapy and the number of total and acid pH-impedance refluxes were significantly reduced (p < 0.05). The PPI had been completely stopped in 55% of the patient and was reduced in 22% of the patients. CONCLUSIONS: At 6-month follow-up, TIF performed using the EsophyX device reduces symptoms and pH-impedance refluxes, allowing interruption or reduction of PPI use in 78% of patients with GERD.
Assuntos
Fundoplicatura/métodos , Refluxo Gastroesofágico/cirurgia , Inibidores da Bomba de Prótons/administração & dosagem , Monitoramento do pH Esofágico , Feminino , Esvaziamento Gástrico , Refluxo Gastroesofágico/tratamento farmacológico , Refluxo Gastroesofágico/fisiopatologia , Humanos , Masculino , Manometria , Pessoa de Meia-Idade , Qualidade de Vida , Estatísticas não Paramétricas , Inquéritos e Questionários , Resultado do TratamentoRESUMO
INTRODUCTION: In a previous uncontrolled study, a reduction of rectal distensibility and volume thresholds for sensations have been related to the occurrence of fecal urgency and/or increased stool frequency after stapled hemorrhoidopexy. AIM OF THE STUDY: The aim of this study was to compare rectal symptoms and sensory-motor function after stapled hemorrhoidopexy and Milligan-Morgan hemorrhoidectomy. METHODS: The clinical records of 12 (four women) and ten patients (four women) with third- and fourth-degree hemorrhoids, respectively, who underwent stapled hemorrhoidopexy or Milligan-Morgan's hemorrhoidectomy, were evaluated. One week before and 6 months after surgery, rectal motor and sensory response to distension was assessed by an electronic barostat, and bowel and rectal symptoms were recorded by means of a 7-day diary and Bristol Index scale and psychological symptoms with SCL-90 questionnaire. RESULTS: Rectal distensibility and volume thresholds for sensations were significantly lower after surgery (P < 0.02) in the stapled group. Increased stool frequency and/or fecal urgency arose in 41% of patients in the stapled group and associated with altered rectal distensibility. No difference within and between groups could be demonstrated in SCL-90 score. CONCLUSIONS: Rectal distensibility and volume thresholds for sensations decrease after stapled hemorrhoidopexy. Altered rectal distensibility was associated with rectal urgency and/or increased stool frequency.
Assuntos
Hemorroidas/fisiopatologia , Hemorroidas/cirurgia , Reto/fisiopatologia , Suturas , Defecação , Procedimentos Cirúrgicos do Sistema Digestório/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reto/inervação , Sensação/fisiologia , Inquéritos e QuestionáriosRESUMO
Cystic echinococcosis (CE), caused by the larval stages of the tapeworm Echinococcus granulosus, is known to be one of the most important parasitic infection in livestock worldwide and one of the most widespread zoonoses known. In the present study, we used a geographical information system (GIS) to study the spatial structure of livestock (cattle, water buffaloes and sheep) populations to gain a better understanding of the role of sheep as reservoir for the transmission of CE to cattle and water buffaloes. To this end, a survey on CE in cattle and water buffaloes from the Campania region of southern Italy was conducted and the geo-referenced results linked to the regional farm geo-referenced data within a GIS. The results showed a noteworthy prevalence of CE in cattle and water buffalo farms (overall prevalence = 18.6%). The elaboration of the data with a GIS approach showed a close proximity of the bovine and/or water buffalo CE positive farms with the ovine farms present in the study area, thus giving important information on the significance of sheep and free-ranging canids in the transmission cycles of CE in relation to cattle and water buffaloes. The significantly higher prevalence found in cattle as compared to water buffalo farms (20.0% versus 12.4%) supports the key role of sheep in the CE transmission; indeed, within the 5 km radius buffer zones constructed around the cattle farms positive for CE, a higher number of (potentially infected) sheep farms were found compared to those found within the buffer zones around the water buffalo farms. Furthermore, the average distances between the sheep and cattle farms falling in the same buffer zones were significantly lower than those between the sheep and water buffalo farms. We emphasize that the use of GIS is a novel approach to further our understanding of the epidemiology and control of CE and we encourage other groups to make use of it.
Assuntos
Agricultura , Animais Domésticos/microbiologia , Búfalos/microbiologia , Bovinos/microbiologia , Equinococose/epidemiologia , Animais , Animais Domésticos/parasitologia , Aviação , Itália/epidemiologia , FotografaçãoRESUMO
BACKGROUND AND STUDY AIMS: Optical coherence tomography (OCT) permits high-resolution imaging of tissue microstructures using a probe that can be inserted into the main pancreatic duct (MPD) through a standard endoscopic retrograde cholangiopancreatography (ERCP) catheter. This prospective study was designed to assess the diagnostic capacity of OCT to differentiate between nonneoplastic and neoplastic lesions in patients with MPD segmental strictures. PATIENTS AND METHODS: Twelve consecutive patients with documented MPD segmental stricture were investigated by endoscopic ultrasonography (EUS), with fine-needle aspiration cytology if necessary, and ERCP, followed by brush cytology and OCT scanning. RESULTS: OCT recognized a differentiated three-layer architecture in all cases with normal MPD or chronic pancreatitis, while in all the neoplastic lesions the layer architecture appeared totally subverted, with heterogeneous backscattering of the signal. The accuracy of OCT for detection of neoplastic tissue was 100% compared with 66.7% for brush cytology. In one case, neither OCT scanning nor brush cytology was possible because of the severity of the stricture. CONCLUSIONS: This pilot study showed that OCT is feasible during ERCP, in cases of MPD segmental stricture, and was superior to brush cytology in distinguishing nonneoplastic from neoplastic lesions.