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1.
Rev. argent. coloproctología ; 35(1): 45-48, mar. 2024. ilus
Article in Spanish | LILACS | ID: biblio-1551689

ABSTRACT

El tumor neuroectodérmico maligno del tracto gastrointestinal es una neoplasia rara con pocos casos reportados en la literatura, especialmente en América Latina. Descrito por primera vez en 2003, se trata de una entidad sin tratamiento estandarizado y de pobre pronóstico. Se presenta el caso de una paciente de 22 años de edad que acude a la consulta por dolor abdominal, anemia y masa abdominal palpable. Luego de estudios pertinentes se decide la conducta resectiva y el posterior tratamiento oncológico. (AU)


Malignant gastrointestinal neuroectodermal tumor (GNET), formerly known as clear cell sarcoma of the gastrointestinal tract, is an extremely rare tumor of mesenchymal origin, which presents great microscopic and molecular similarity to clear cell sarcoma found in other parts of the body, such as tendons and aponeurosis. It is characterized by its rapid evolution, high recurrence rate and frequent diagnosis as metastatic disease.1,2 (AU)


Subject(s)
Humans , Female , Young Adult , Sarcoma, Clear Cell/pathology , Neuroectodermal Tumors/pathology , Gastrointestinal Neoplasms/diagnosis , Digestive System Surgical Procedures/methods , Immunohistochemistry , S100 Proteins/analysis , Gastrointestinal Neoplasms/surgery , Ileum/surgery
2.
Phys Rev Lett ; 127(3): 030501, 2021 Jul 16.
Article in English | MEDLINE | ID: mdl-34328750

ABSTRACT

Ensembles of dopants have widespread applications in quantum technology. The miniaturization of corresponding devices is however hampered by dipolar interactions that reduce the coherence at increased dopant density. We theoretically and experimentally investigate this limitation. We find that dynamical decoupling can alleviate, but not fully eliminate, the decoherence in crystals with strong anisotropic spin-spin interactions that originate from an anisotropic g tensor. Our findings can be generalized to many quantum systems used for quantum sensing, microwave-to-optical conversion, and quantum memory.

3.
Rev. argent. coloproctología ; 30(2): 51-56, Jun. 2019. tab
Article in Spanish | LILACS | ID: biblio-1025473

ABSTRACT

Introducción: La incontinencia anal es una compleja y devastadora patología que altera la calidad de vida de los pacientes, cuya etiología más común es la lesión esfintérica postparto vaginal. A la hora de clasificar la incontinencia, el score descripto por Jorge y Wexner es el más utilizado en nuestro medio. La ecografía endoanal ha sido definida como el gold standard para evaluar los defectos del esfínter anal. Objetivo: Determinar la correlación entre los hallazgos clínicos y ecográficos en pacientes con incontinencia fecal de causa obstétrica. Material y Métodos: Población: pacientes que consultaron en el Centro Privado de Cirugía y Coloproctología entre enero de 2015 y diciembre de 2017 por incontinencia fecal con antecedentes de trauma obstétrico y a las que se les realizó una ecografía endoanal 360° y score de Jorge y Wexner. Resultados: Se evaluaron 24 pacientes. La media de edad fue de 56 años. El número de partos en promedio fue 2,3 y el Score de Wexner en promedio fue 9.7 (±5.2). La ecografía endoanal confirmó alteración esfintérica por afinamiento o interrupción en el 100% de los pacientes. Se observó una tendencia a una asociación negativa entre el Score de Wexner y la ecografía endoanal (r=-0.328, p=0.067). Las pacientes con menor grado de lesión esfinteriana por ecografía tenían mayor severidad en el Score de Wexner que las pacientes con mayor grado de lesión. Las pacientes con evidencia ecográfica de lesiones leves refirieron un mayor Score de Wexner que aquellas con lesiones severas. Conclusión: En este trabajo no existió correlación entre los hallazgos ecográficos y el score de incontinencia. Si bien la ecografía esfintérica es el gold standard para evaluar daño muscular, la terapéutica no debe ser determinada solamente por la ecografía. Tipo de estudio: Retrospectivo, transversal y descriptivo.


Introduction: Anal incontinence is a complex and devastating pathology that alters the patient's quality of life, whose most common etiology is vaginal postpartum sphincter injury. To classify incontinence, the score described by Jorge and Wexner is the most used in our environment. Endoanal ultrasound has been defined as the gold standard for evaluating anal sphincter defects. Objective: To determine the correlation between clinical and ultrasound findings in patients with fecal incontinence due to obstetric cause. Material and Methods: Population: patients who consulted at the Private Center of Surgery and Coloproctology between January 2015 and December 2017 due to fecal incontinence with a history of obstetric trauma and who underwent a 360º endoanal ultrasound and a Jorge and Wexner score. Results: Twenty-four patients were evaluated. The average age was 56 years. The number of births on average was 2.3 and the Wexner Score on average was 9.7 (± 5.2). Endoanal ultrasound confirmed sphincter alteration by refining or interruption in 100% of patients. A tendency to a negative association was observed between the Wexner Score and the endoanal ultrasound (r = -0.328, p = 0.067). Patients with a lower degree of sphincter injury by ultrasound had greater severity in the Wexner Score than patients with a higher degree of injury. Patients with ultrasound evidence of mild lesions reported a higher Wexner Score than those with severe lesions. Conclusion: In this work, there was no correlation between the sonographic findings and the incontinence score. Although sphincter ultrasonography is the gold standard for assessing muscle damage, therapy should not be determined only by ultrasound. Type of study: Retrospective, cross-sectional and descriptive.


Subject(s)
Humans , Female , Pregnancy , Adult , Middle Aged , Aged , Aged, 80 and over , Anal Canal/injuries , Anal Canal/diagnostic imaging , Endosonography/methods , Fecal Incontinence/etiology , Risk Factors , Fecal Incontinence/diagnostic imaging , Obstetric Labor Complications
4.
Rev. argent. coloproctología ; 30(1): 19-26, mar. 2019. ilus, tab
Article in Spanish | LILACS | ID: biblio-1023670

ABSTRACT

Introducción: La hemorroidopexia con sutura mecánica, es una técnica eficaz para los prolapsos hemorroidales grado III y IV. Objetivo: Describir nuestra experiencia con dicho método. Material y métodos: Se realizó un análisis descriptivo, retrospectivo sobre una base de datos cargada en forma prospectiva. Se analizaron pacientes con hemorroides grado III y IV, en quienes se realizó hemorroidopexia con PPH- 03, desde enero del 2010 hasta diciembre de 2017. Se evaluaron las variables demográficas, las complicaciones y el grado de satisfacción. Se realizó seguimiento postoperatorio semanal, a los 15 días, al mes, a los 6 meses y finalmente un control telefónico. Resultados: Se estudiaron 452 pacientes. La edad media fue de 46 años (rango: 20-75), siendo el 63% (n=291) del sexo masculino. El 84% (n=387) presentaban hemorroides grado III. El índice de complicación fue del 25% (n=115) durante el periodo de seguimiento, en el postoperatorio inmediato, 60 (52%) pacientes presentaron un evento considerado como complicación, y 55 (48%) pacientes presentaron complicaciones mediatas y tardías. Las complicaciones más frecuentes fueron: dolor en 37 (8%) de los pacientes, seguida por proctorragía en 18 casos (4%) y trombosis hemorroidal externa en 15 pacientes (3,3%). (AU)


Background: Hemorrhoidopexy with mechanical suture is an effective technique for hemorrhoidal prolapses grade III and IV. Objective: Describe our experience with this method. Material and methods: A descriptive, retrospective analysis was performed on a prospectively loaded database. Patients with grade III and IV hemorrhoids were analyzed, in whom hemorrhoidopexy was performed with PPH-03, from January 2010 to December 2017. Demographic variables, complications and degree of satisfaction were evaluated. Weekly postoperative follow-up was performed at 15 days, at month, at 6 months and finally a telephone control. Results: 452 patients were studied. The average age was 46 years (range,: 20 - 75), being 63% (n = 291) of the male sex. 84% (n = 387) had grade III hemorrhoids. The complication rate was 25% (n = 115) during the follow-up period, in the immediate postoperative period, 60 (52%). The most frequent complications were: pain in 37 (8%) patients, follow-up by proctorrhagia in 18 cases (4%) and hemorrhoidal thrombosis external in 15 patients (3.3%). (AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Young Adult , Suture Techniques , Hemorrhoidectomy/methods , Hemorrhoids/surgery , Postoperative Complications , Reoperation , Retrospective Studies , Follow-Up Studies , Rectal Prolapse/surgery , Patient Satisfaction , Aftercare
5.
Acta Gastroenterol Latinoam ; 46(2): 82-94, 2016 06.
Article in Spanish | MEDLINE | ID: mdl-28703561

ABSTRACT

Sacral neuromodulation involves electrical stimulation of af­ferent nerve roots to restore the balance between inhibitory and excitatory reflexes who improve the functional activity of the pelvic floor. With benefits in patients with fecal inconti­nence, constipation and chronic anorectal pain. Objective. The aim of this study is present the results obtained with sacral neuromodulation for the treatment of patients with fecal incontinence, severe and intractable chronic constipa­tion and chronic anorectal pain. Patients and methods. 33 patients had indication for transitory electrical sacral stimu­lation, 25 patients performed transitory electrical stimula­tion for fecal incontinence, 5 with refractary constipation and 3 with chronic anorectal pain. In cases of fecal inconti­nence, the patients performed previous anorectal manometry and ultrasonography examination of anal sphincters. When the constipation is the indication, we performed stimulation in patients with severe and refractary constipation like step before total colectomy. In cases of chronic anorectal pain, the electrical transitory test was performed according to our treatment algorithm for management of functional anorectal pain. In all cases, if the patients had satisfactory results after 2 weeks period the definitive implant was placed. Results. Mean follow-up was 69 months (range 6-130). Definitve implant was placed for treatment of fecal incontinence in 23 patients with a decrease in fecal incontinence scores in 98%, with an average success rate of 66% (range: 45-92). In cases of constipation, 3 definitive implants were placed, the mean follow-up was 77 months (range: 51-96) with a success rate between 50%-80% as measured by bowel frequency. We performed definitive electrical stimulation in 3 patients wit chronic and intractable anorectal pain. Response rates as measured by visual analog scale were between 40%-70%. Conclusions. Sacral neuromodulation is an area in constant growth, with more indications. The success depends on the correct indication and the patients need to be treated with other therapeutic options before sacral neuromodulation.


Subject(s)
Chronic Pain/therapy , Constipation/therapy , Electric Stimulation Therapy/methods , Fecal Incontinence/therapy , Rectal Diseases/therapy , Adult , Aged , Female , Humans , Lumbosacral Plexus , Male , Middle Aged , Prospective Studies , Severity of Illness Index , Treatment Outcome
6.
Rev. argent. ultrason ; 12(4): 206-211, dic. 2013. ilus
Article in Spanish | BINACIS | ID: bin-129784

ABSTRACT

Indicaciones de la ultrasonografía endoanal en tres dimensiones, y anatomía a través de la ultrasonografía endoanal con tecnología en tres dimesiones: equipo, técnica, y procesamiento de datos.


Subject(s)
Ultrasonography/instrumentation , Ultrasonography/methods , Rectal Fistula/diagnosis , Rectal Fistula/diagnostic imaging , Abscess/diagnosis , Abscess/diagnostic imaging , Imaging, Three-Dimensional/statistics & numerical data
7.
Rev. argent. ultrason ; 12(4): 206-211, dic. 2013. ilus
Article in Spanish | LILACS | ID: lil-733718

ABSTRACT

Indicaciones de la ultrasonografía endoanal en tres dimensiones, y anatomía a través de la ultrasonografía endoanal con tecnología en tres dimesiones: equipo, técnica, y procesamiento de datos.


Subject(s)
Abscess/diagnosis , Abscess , Rectal Fistula/diagnosis , Rectal Fistula , Imaging, Three-Dimensional , Ultrasonography
8.
Rev. argent. coloproctología ; 24(4): 167-170, Dic. 2013. ilus, tab
Article in Spanish | LILACS | ID: lil-752751

ABSTRACT

Objetivos: describir un reciente método para evaluar pacientes con síntomas de obstrucción del tracto de salida, y mostrar nuestra experiencia inicial y resultados obtenidos. Material y Métodos: se estudiaron, en el período comprendido entre mayo 2011 y mayo 2013, a pacientes con síntomas de dificultad evacuatoria utilizando la ecografía anorrectal dinámica según la técnica descripta. Los estudios fueron efectuados por 2 operadores entrenados en el método. Resultados: se realizaron 89 ecodefecografías en 88 pacientes, en un período de 24 meses. La ecodefecografía detectó rectocele en el 65% de los pacientes estudiados, seguido de intususcepción y anismo en el 54 y 45%, respectivamente. Conclusión: la ecodefecografía es un método útil para evaluar pacientes con síntomas de obstrucción del tracto de salida. Permite obtener los mismos resultados que la videodefecografía. Es un estudio mínimamente invasivo, evita la exposición a radiación y pone en evidencia todas las estructuras anatómicas involucradas en la evacuación.


Purpose: to describe a novel method to assess Obstructed Defecation Syndrome (ODS) and to show the results of our experience. Material and Methods: patients referred with symptoms of ODS between May 2011 and May 2013 were studied by anorrectal dynamic ultrasonography technique. We use the technique of echodefecography described by Murah-Regadas et al. The test was analyzed by two experienced investigators. Results: we performed 89 echodefecography in 88 patients in a period of 24 months. EDF revealed rectocele in 65%, intussusception in 54% and anismus in 45% of patients. Conclusion: echodefecography may be used to assess patients with obstructed defecation, as it is able to detect the same anorrectal dysfunctions found by defecography. It is a minimally invasive, well tolerated method, that avoids exposure to radiation and clearly shows all the anatomical structures involved in defecation.


Subject(s)
Humans , Male , Female , Defecography/methods , Intestinal Obstruction/diagnosis , Constipation/diagnosis , Imaging, Three-Dimensional/methods
9.
Acta Gastroenterol Latinoam ; 43(1): 39-43, 2013 Mar.
Article in Spanish | MEDLINE | ID: mdl-23650833

ABSTRACT

Kaposi's sarcoma is the most common cancer in men who have sex with men with AIDS. The estimated prevalence in the United States is 25% in patients with positive serology for the human immunodeficiency virus (HIV). The commitment of the gastrointestinal tract is seen in 40% of patients with Kaposi's sarcoma related to AIDS but lesions can occur anywhere in the body and evolve rapidly. We present a 33-year-old patient who kept sex with men, with epidemiological history of hepatitis B and syphilis, who consulted the service of Coloproctology for perianal ulcer. He was studied according to the protocols of sexually transmitted diseases, was diagnosed HIV and an excision biopsy of the lesion was performed. The diagnosis of perianal Kaposi's sarcoma was reached. Kaposi's sarcoma-HIV was staged, no other lesions were found and the patient started antiretrovirals with poor response to therapy. He evolved with rapid progression of the disease and died with the presumptive diagnosis of Fournier's syndrome at three months after the excision biopsy. We conclude that perianal ulcers are a relatively common pathology in the office of Coloproctology and differential diagnosis are different according to the positivity for HIV or not and the patient's sexual practices. We consider that is important to publish and spread these cases.


Subject(s)
Acquired Immunodeficiency Syndrome/diagnosis , Homosexuality, Male , Sarcoma, Kaposi/diagnosis , Acquired Immunodeficiency Syndrome/complications , Adult , Fatal Outcome , Humans , Male , Sarcoma, Kaposi/etiology
10.
Rev. argent. ultrason ; 12(1): 14-21, mar. 2013. ilus
Article in Spanish | BINACIS | ID: bin-131158

ABSTRACT

La ultrasonografía con transductor endocavitario se ha convertido en una valiosa herramienta de la práctica coloproctológica. Con la ecografía convencional bidimensional, hay muchos elementos de la imagen que no pueden ser correctamente reconocidos como componentes de una estructura tridimensional, o al menos no se perciben en sus relaciones espaciales verdaderas, y una buena cantidad de información pertinente puede permanecer oculta. La introducción reciente de un ultrasonido tridimensional de alta resolución, permite la evaluación del canal anal y el recto en una gran variedad de proyecciones. Sin embargo, una limitación de la reconstrucción tridimensional es que el contenido del volumen sigue siendo desconocido. El modo de procesamiento de realce de volumen es una función especial que se puede aplicar en los equipos de alta resolución con procesamiento tridimensional. Mediante el uso de una combinación de los parámetros de visualización de la imagen, el modo procesamiento de volumen proporciona un mejor rendimiento de la visualización. La ultrasonografía endoanal y endorrectal es utilizada para evaluar las alteraciones anatómicas en la incontinencia fecal, para detectar y clasificar procesos supurativos anorrectales como abscesos ocultos y fístulas complejas, para la estadificación de los cánceres de recto y ano, y para evaluar pacientes con síndrome de obstrucción al tracto de salida, aportándonos una importante información diagnóstica y pronóstica, proporcionando información suficiente para la toma de decisiones clínicas en muchos casos.(AU)


Subject(s)
Ultrasonography/instrumentation , Ultrasonography/methods , Ultrasonography/statistics & numerical data , Rectal Neoplasms/diagnosis , Rectal Neoplasms/diagnostic imaging , Imaging, Three-Dimensional/methods , Imaging, Three-Dimensional/statistics & numerical data
11.
Rev. argent. ultrason ; 12(1): 14-21, mar. 2013. ilus
Article in Spanish | LILACS | ID: lil-671871

ABSTRACT

La ultrasonografía con transductor endocavitario se ha convertido en una valiosa herramienta de la práctica coloproctológica. Con la ecografía convencional bidimensional, hay muchos elementos de la imagen que no pueden ser correctamente reconocidos como componentes de una estructura tridimensional, o al menos no se perciben en sus relaciones espaciales verdaderas, y una buena cantidad de información pertinente puede permanecer oculta. La introducción reciente de un ultrasonido tridimensional de alta resolución, permite la evaluación del canal anal y el recto en una gran variedad de proyecciones. Sin embargo, una limitación de la reconstrucción tridimensional es que el contenido del volumen sigue siendo desconocido. El modo de procesamiento de realce de volumen es una función especial que se puede aplicar en los equipos de alta resolución con procesamiento tridimensional. Mediante el uso de una combinación de los parámetros de visualización de la imagen, el modo procesamiento de volumen proporciona un mejor rendimiento de la visualización. La ultrasonografía endoanal y endorrectal es utilizada para evaluar las alteraciones anatómicas en la incontinencia fecal, para detectar y clasificar procesos supurativos anorrectales como abscesos ocultos y fístulas complejas, para la estadificación de los cánceres de recto y ano, y para evaluar pacientes con síndrome de obstrucción al tracto de salida, aportándonos una importante información diagnóstica y pronóstica, proporcionando información suficiente para la toma de decisiones clínicas en muchos casos.


Subject(s)
Imaging, Three-Dimensional/methods , Imaging, Three-Dimensional , Rectal Neoplasms/diagnosis , Rectal Neoplasms , Ultrasonography
12.
Acta Gastroenterol. Latinoam. ; 43(1): 39-43, 2013 Mar.
Article in Spanish | BINACIS | ID: bin-133128

ABSTRACT

Kaposis sarcoma is the most common cancer in men who have sex with men with AIDS. The estimated prevalence in the United States is 25


in patients with positive serology for the human immunodeficiency virus (HIV). The commitment of the gastrointestinal tract is seen in 40


of patients with Kaposis sarcoma related to AIDS but lesions can occur anywhere in the body and evolve rapidly. We present a 33-year-old patient who kept sex with men, with epidemiological history of hepatitis B and syphilis, who consulted the service of Coloproctology for perianal ulcer. He was studied according to the protocols of sexually transmitted diseases, was diagnosed HIV and an excision biopsy of the lesion was performed. The diagnosis of perianal Kaposis sarcoma was reached. Kaposis sarcoma-HIV was staged, no other lesions were found and the patient started antiretrovirals with poor response to therapy. He evolved with rapid progression of the disease and died with the presumptive diagnosis of Fourniers syndrome at three months after the excision biopsy. We conclude that perianal ulcers are a relatively common pathology in the office of Coloproctology and differential diagnosis are different according to the positivity for HIV or not and the patients sexual practices. We consider that is important to publish and spread these cases.


Subject(s)
Acquired Immunodeficiency Syndrome/diagnosis , Homosexuality, Male , Sarcoma, Kaposi/diagnosis , Acquired Immunodeficiency Syndrome/complications , Adult , Fatal Outcome , Humans , Male , Sarcoma, Kaposi/etiology
13.
Acta gastroenterol. latinoam ; 43(1): 39-43, 2013 Mar.
Article in Spanish | LILACS, BINACIS | ID: biblio-1157349

ABSTRACT

Kaposi’s sarcoma is the most common cancer in men who have sex with men with AIDS. The estimated prevalence in the United States is 25


in patients with positive serology for the human immunodeficiency virus (HIV). The commitment of the gastrointestinal tract is seen in 40


of patients with Kaposi’s sarcoma related to AIDS but lesions can occur anywhere in the body and evolve rapidly. We present a 33-year-old patient who kept sex with men, with epidemiological history of hepatitis B and syphilis, who consulted the service of Coloproctology for perianal ulcer. He was studied according to the protocols of sexually transmitted diseases, was diagnosed HIV and an excision biopsy of the lesion was performed. The diagnosis of perianal Kaposi’s sarcoma was reached. Kaposi’s sarcoma-HIV was staged, no other lesions were found and the patient started antiretrovirals with poor response to therapy. He evolved with rapid progression of the disease and died with the presumptive diagnosis of Fournier’s syndrome at three months after the excision biopsy. We conclude that perianal ulcers are a relatively common pathology in the office of Coloproctology and differential diagnosis are different according to the positivity for HIV or not and the patient’s sexual practices. We consider that is important to publish and spread these cases.


Subject(s)
Homosexuality, Male , Sarcoma, Kaposi/diagnosis , Acquired Immunodeficiency Syndrome/diagnosis , Adult , Fatal Outcome , Humans , Male , Sarcoma, Kaposi/etiology , Acquired Immunodeficiency Syndrome/complications
14.
Acta Gastroenterol Latinoam ; 42(3): 193-8, 2012 Sep.
Article in Spanish | MEDLINE | ID: mdl-23214349

ABSTRACT

INTRODUCTION: Fecal incontinence is a complex disease that affects the quality of life of patients suffering from it. Anorectal manometry and endoanal ultrasound 360 grades are included among the studies used. There are no clear agreement about the relevance and usefulness of this studies and their role as apart of diagnostic procedures. OBJECTIVE: To describe the relationship between the clinical severity score in patients with fecal incontinence and the findings of anorectal manometry and endoanal ultrasound. Another objective of this study is to describe the degree of agreement of both methods of study. MATERIAL AND METHODS: The study population includes 74 patients who underwent endoanal ultrasonography and anorectal manometry for fecal incontinence. The presence or absence of ultrasound injury, the pressures obtained by anorectal manometry and its relationship with clinical severity of patients were described. An analysis of the degree of agreement between both methods was performed. RESULTS: The mean age of patients was 53 years old (range 19-84 years). Pressures of anorectal manometry were reduced in 59 patients (79.7%) and normal in 15 (20.3%). The assessment of the degree of agreement or concordance between ultrasound and anorectal manometry yielded a kappa coefficient of 0.25 (acceptable) (P = 0.0001). CONCLUSION: There is a level of acceptable agreement between endoanal ultrasound findings and anorectal manometry when patients with fecal incontinence are evaluated.


Subject(s)
Anal Canal/physiopathology , Anal Canal/ultrastructure , Fecal Incontinence/diagnostic imaging , Fecal Incontinence/physiopathology , Adult , Aged , Aged, 80 and over , Cross-Sectional Studies , Endosonography , Female , Humans , Male , Manometry , Middle Aged , Retrospective Studies , Severity of Illness Index , Young Adult
15.
Rev. argent. coloproctología ; 20(2): 69-71, jun. 2009.
Article in Spanish | LILACS | ID: lil-596761

ABSTRACT

Introducción: Las Infecciones de Transmisión Sexual (ITS) han experimentado un incremento en su incidencia en los últimos años, especialmente en ano y recto. Por esto es importante que hoy en día el proctólogo se encuentre preparado para atender pacientes con ITS. El objetivo del presente trabajo, además de mostrar los datos recabados en el registro de ITS del Centro Privado de Coloproctología, es describir lo aprendido al interrogar nuestros pacientes y hacer hincapié en la importancia que tiene la primera consulta de un paciente que se presume padece una ITS. Diseño: Observacional, prospectivo. Pacientes y Métodos: Entre diciembre de 2006 y Febrero de 2009 registramos 100 pacientes con presunta ITS o antecedentes de riesgo; 87 hombres - 73 homosexuales, 14 heterosexuales -, con edad promedio de 33.4 años (20-70). 41 eran VIH+. En la primera entrevista completamos una ficha clínica especial, evaluamos el estado serológico y el esquema de vacunación del paciente. Realizamos un examen proctológico completo y dimos consejos acerca de prevención de ITS. Resultados: Diagnosticamos 66 lesiones por HPV, 13 úlceras y 1 condiloma asociado a sífilis. Diagnosticamos 3 VIH y 6 sífilis no sospechadas. 30 pacientes tenían serología negativa para hepatitis A y 46 para hepatitis B. 4 pacientes tenían Hepatitis B en actividad, 8 sífilis y 22 Herpes Simplex II. 36 pacientes negaron la utilización de preservativo, 49 lo utilizan sólo en relaciones sexuales ano-genitales y sólo 14 para el sexo oral. Discusión: La primera entrevista a un paciente con una presunta ITS debe ser considerada como única por lo que no debemos perder la oportunidad de realizar una anamnesis dirigida, un examen físico completo, solicitar un panel serológico y, además dar pautas de educación sexual...


Introduction: Incidence of Sexually Transmitted Infections (STIs) has increased in recent years, especially in the ano-rectum. Therefore it is important that proctologists be prepared to treat patients with STls. The purposes of this paper are to show the data collected in the register ofSTIs at the Centro Privado de Coloproctología and to describe what we learned interviewing our patients, emphasizing the importance of the first interview. Design: Observational, prospective. Patients and Methods: Between December 2006 and February 2009 we registered 100 patients with suspected STI; 87 were men -73 homosexual, 14 heterosexual, and 33.4 years old (20-70). 41 were HIV +. During the first interview we completed an especial clinical history, assessed patient's serological status and vaccination schedule. We made a complete proctological exam and gave advice about prevention of STls. Results: We diagnosed 66 HPV related lesions, 13 ulcers and 1 condyloma associated with syphilis. We also diagnosed 3 unsuspected HIV and 6 syphilis. 30 patients had negative serology for hepatitis A and 46 for hepatitis B. 4 patients had active hepatitis B, 8 syphilis and 22 Herpes Simplex TI. 36 patients refused the use of condoms, 49 use it only for ano-genital sex and only 14 for oral sex. Discussion: The first interview with a patient with a suspected STI should be considered unique so we can't lose the opportunity to perform a clinical history, a complete physical examination, request a serological panel and give an advice about prevention of STIs. Respect, sensitivity and lack of prejuice are essential to achieving the confidence of the patient, thus enabling correct diagnosis and treatment, in addition to providing adequate preventive advice.


Subject(s)
Humans , Male , Adult , Young Adult , Middle Aged , Sexually Transmitted Diseases/diagnosis , Sexually Transmitted Diseases/prevention & control , Anus Diseases/diagnosis , Anus Diseases/prevention & control , Medical History Taking/methods , Condoms , HIV Infections , Papillomavirus Infections , Sex Education , Sexual Behavior
16.
Rev. argent. coloproctología ; 19(1): 26-29, mar. 2008. ilus, tab
Article in Spanish | LILACS | ID: lil-574121

ABSTRACT

Objetivo: Analizar los resultados de la ultrasonografía endoanal de 360° en el diagnóstico de los diferentes tipos de abscesos anorrectales y compararlos con los hallazgos quirúrgicos obtenidos. Pacientes y método: Fueron estudiados 123 casos por abscesos anorrectales con ecografía endoanal de 360° en el período comprendido entre diciembre de 2004 y diciembre de 2006. El análisis estadístico se realizó con test de Chi-Cuadrado y el valor significativo se estableció para p< 0.05. El rango de edad fue de 23 a 72 años (x: 47.58), siendo 93 casos de sexo masculino. Los síntomas de inicio más frecuentes fueron: proctalgia 123 casos (100 por ciento). fiebre 66 (53.6 por ciento), tumor 35 (28.45 %), secreción 42 (34 %). síntomas urinarios 8 (6.5%). Se presentaron patologías asociadas en 12 casos: enfermedad inflamatoria intestinal, fisura anal y fistula anal recidivada. Resultados: los hallazgos ecográficos presentaron alta sensibilidad en la localización y extensión de los abscesos (90 %) p<0.01 así como la ubicación de la cripta patológica (76 %) p<0.01 en comparación con los hallazgos quirúrgicos. El tratamiento implementado fue drenaje bajo anestesia con control ecográfico posterior (96.7 %) y tratamiento médico con antibióticos (3.2 5). En el 75 % de los pacientes con identificación de la cripta patológica por ecografía se pudo realizar tratamiento definitivo: fistulotomía y/o colocación de sedal. En el seguimiento a 60 días. 12 pacientes presentaron recaída (9.7 %). Conclusión: La ultrasonografía endoanal parece ser un método útil y de alta sensibilidad para identificar abscesos ocultos, detectar el origen y la extensión de los mismos; facilitando el tratamiento quirúrgico definitivo.


Purpose: To analyze the results of the 360° endoanal ultrasound for the diagnosis of the anorectal abscesses and compared with the surgery. Patients and methods: One hundred twenty-three cases underwent 360° endoanal ultrasound for anorectal abscesses in the period December 2004 - December 2006. The Chi-Cuadrado test was aplicated. The mean age was 47.58 (23 to 72 years) with 93 males and 30 females. The frequency of the symptoms were: anorectal pain 123 cases (100 %), fever 66 (53.6 per cent). tumor 35(28.45 5), suppuration 42(34 %) and urinary symptoms 8 (6.5 %). There were 12 patients with associated pathologies: inflammatory bowel disease, anal fissure and anal fistula recurrence. Results: There was high sensitivity for the ultrasound to identificated the location and the extention of the abscesses (90 %) p<0.01 sensitivity: 76 per cent for to identificated the internal opening. The therapeutic was drainage under endosonography control (96.7 5) and medical treatment with antibiotics (3.2 5). In 75 per cent of the patients the internal opening were identificated by ultrasound and the primary surgery was performed: fistulotomy and setton. In 60 days of follow up there were 12 cases of recurrence (9.7 %). Conclusions: The endoanal ultrasound seems to have high sensitivity to identify location, extention and primary location of the abscesses and to improve surgery.


Subject(s)
Humans , Male , Adult , Female , Middle Aged , Abscess , Anal Canal , Anus Diseases , Abscess/surgery , Diagnostic Imaging , Anus Diseases/surgery , Sensitivity and Specificity , Ultrasonography
17.
Hematol Oncol Stem Cell Ther ; 1(1): 3-13, 2008.
Article in English | MEDLINE | ID: mdl-20063522

ABSTRACT

BACKGROUND: Glioblastoma multiforme (GBM), the most aggressive glioma, presents with a rapid evolution and relapse within the first year, which is attributed to the persistence of tumor stem cells (TSC) and the escape of immune surveillance. Mixed leukocyte culture (MLC) cytoimplant has been shown to function as a powerful intratumor pro-inflammatory cytokine pump. Tumor B-cell hybridoma (TBH) vaccines have been shown to function as antigen-presenting cells. We evaluated the toxicity and efficiency of each treatment alone and in combination. PATIENTS AND METHODS: In an open study, 12 consecutive patients were evenly divided into 3 groups, each group receiving 3 different treatments. Patients in Group 1 were treated, after diagnosis, with debulking surgery (DS)+radiotherapy (Rx), and after the first relapse underwent DS+MLC treatment. Patients in Group 2 were similarly treated but after the first relapse underwent DS+MLC+TBH. Finally, patients in Group 3 were similarly treated but after the first relapse underwent DS+TBH. Nestin PAP stain assessed TSC participation in TBH. RESULTS: Treatment with MLC had strong and rapid therapeutic effects, but was limited in duration and induced various degrees of brain inflammation. Treatment with MLC+TBH acted synergistically, provoking a rapid, strong and lasting therapeutic response but also generating different degrees of brain inflammation. A lasting therapeutic effect without generating high degrees of brain inflammation occurred in patients treated with TBH vaccine alone. CONCLUSION: TSC vaccine consisting of TBH alone seems to have potent adjuvant reactions overcoming both persistence of tumor stem cells and immune escape of GBM without provoking an encephalitic reaction.


Subject(s)
B-Lymphocytes/transplantation , Brain Neoplasms/therapy , Cancer Vaccines/therapeutic use , Glioblastoma/therapy , Hybridomas/transplantation , Neoplastic Stem Cells/transplantation , Adult , Aged , Aged, 80 and over , B-Lymphocytes/immunology , Brain Neoplasms/immunology , Cancer Vaccines/immunology , Female , Glioblastoma/immunology , Humans , Hybridomas/immunology , Leukocytes, Mononuclear/immunology , Leukocytes, Mononuclear/transplantation , Lymphocyte Culture Test, Mixed , Male , Middle Aged , Neoplasm Recurrence, Local/therapy , Neoplastic Stem Cells/immunology
18.
Rev. argent. coloproctología ; 18(4): 483-488, dic. 2007. graf
Article in Spanish | LILACS | ID: lil-525149

ABSTRACT

En las últimas 2 a 3 décadas la incidencia del cáncer escamoso del ano aumentó un 96 por ciento en hombres y un 39 por ciento en mujeres. Entre los hombres que tienen sexo con hombres la incidencia estimada es de 35/100000 habitantes, cifra comparable con la incidencia del cáncer anal del cuello uterino antes de que se implementara la práctica del Papanicolau (PAP). Este valor se duplica en portadores del virus de la inmunodeficiencia humana. De acuerdo con múltiples asociaciones histopatológicas y epidemiológicas se cree que el cáncer escamoso del ano se comporta de manera similar al cáncer del cuello uterino: comparten una asociación etiológica común con el HPV de alto riesgo, citología e histología similares. Teniendo en cuenta el impacto que el PAP y la colposcopia cervicales tuvieron sobre el cáncer del cuello uterino y la importancia del diagnóstico precoz para el pronóstico del cáncer del ano, algunos autores sugieren realizar pesquisa del cáncer anal anal. Se recomienda en individuos homosexuales de sexo masculino, hombres o mujeres HIV positivos, pacientes transplantados y mujeres con antecedentes de un cáncer anal, cervical. o vulvar. En el presente trabajo se expone una revisión de los trabajos publicados hasta la fecha acerca de la pesquisa del cáncer anal.


Over the last 2-3 decades the incidence of squamous anal cancer increased by 96 per cent in men and 39 per cent in women in the United States. Among men who have sex with men the incidence has been estimated to be 35 cases per 100000 population. comparable to the incidence of' cervical cancer before the screening was implemented. The incidence in HIV-positive individuals is 70/100000. Given the multiple histopathologic and epidemiologic associations, squamous cancer of the anus is thought to behave like cervical cancer: they share a common ctiology, the association with high risk-HPV, similar cytology and histology. Considering the impact that the cervical PAP and colposcopy had on cervical cancel and the impact the early diagnosis of anal cancer have on morbidity and mortality, some practitioners proposed an anal cancer screening program. It is recommended for men who have sex with men, HIV-positive men of women, transplant recipients and women with history of cervical or vulvar cancer. In this paper we review published data about squamous anal cancer screening.


Subject(s)
Humans , Male , Female , Neoplasms, Squamous Cell/surgery , Neoplasms, Squamous Cell/diagnosis , Anus Neoplasms/surgery , Anus Neoplasms/diagnosis , Cost-Benefit Analysis , Cytodiagnosis/methods , Early Diagnosis , HIV Seropositivity , Homosexuality , Incidence , Papillomavirus Infections/complications , Papillomavirus Infections/transmission , Neoplasms, Squamous Cell/epidemiology , Anus Neoplasms/epidemiology , Prognosis , Risk Factors
19.
Rev. argent. coloproctología ; 18(4): 509-513, dic. 2007. ilus, tab
Article in Spanish | LILACS | ID: lil-525154

ABSTRACT

Introducción: Las fistulas anales complejas son de difícil manejo y en general afectan la calidad de vida de los pacientes que las padecen. Cuando el trayecto compromete gran cantidad del músculo esfinteriano existe el riesgo de una incontinencia postoperatoria. Para prevenir el daño, en los últimos años surgieron tratamientos alternativos, entre ellos el tapón bioprotésico anal. Objetivo: Demostrar la eficacia del tapón bioprotésico anal en el tratamiento de las fistulas anales complejas. Diseño: Estudio observacional retrospectivo. Pacientes y métodos: Se colocaron 15 tapones en 12 pacientes (6 varones) con una edad promedio de 47 años (rango, 26-71). El 62 por ciento de los pacientes presentaban antecedentes de dos o más cirugias previas por fístulas anales complejas (9 transesfinterianas altas, l extraesfinteriana, l recto-vaginal, l pouch-vaginal). Se utilizó la ecografía endoanal de 3600 como estudio complementario del diagnóstico en todos los casos. El procedimiento fue realizado bajo anestesia general, en posición de litotomía y se utilizó profilaxis antibiótica. Una vez localizado el trayecto fistuloso se irrigó con solución de iodopovidona para ubicar el orificio primario. Se colocó el tapón anal a través del trayecto fistuloso fijándolo al orifico interno y recortando el excedente al nivel del orificio externo. El tiempo de seguimiento fue de 2 a 13 meses. Resultados: El tratamiento fue exitoso en 8 pacientes con una única colocación del tapón. De los casos recidivados, se les colocó un nuevo tapón a tres pacientes; evolucionando con éxito dos de ellos. El porcentaje global de respuesta favorable fue del 82 por ciento. No se registró morbi-mortalidad referida al método. Conclusión: El tratamiento de las fistulas anales con el tapón bioprotésico es una alternativa segura y efectiva, con posibilidades de volver a realizarse sin afectar la continencia.


Introduction: The complex anal fistulas have a difficult treatment and generally affect the patients’ lifestyle. When the tracts run through the upper anal sphincters the risk of postoperative incontinence is higher. The anal bioprosthetic plug is an alternative treatment for preventing the damage. Aim: To demonstrate the efficacy of the anal plug in the treatment of the complex anal fistulas. Design: Observational retrospective study. Patients and Methods: Fifteen plugs were applied to 12 patients (6 males), mean age 47 (range, 26-71) years. The 62 per cent of patients had multiple previous surgeries for complex fistulas (9 high transsphincteric, 1 extrasphincteric, 1 recto-vaginal, 1 pouch-vaginal fistulas). The 360º anal ultrasound was applied in all cases. The surgical technique was performed under general anesthesia, in lithotomy position, with antibiotics prophylaxis. During surgery iodopovidone was used to confirm the localization of the internal opening. The plug was inserted via the fistula tract and attached to the internal opening. Any portion of the plug implanted remaining out of the tract was removed. The length of follow-up was 2 to 13 months. Results: The treatment was successful in 8 patients with one plug implantation. In 3 cases of recurrence, another plug was inserted and two fistulas healed. The overall success rate was 82 pre cent. There was no morbidity or mortality with the method. Conclusion: The anal bioprosthetic plug is a safe and effective treatment for anal fistulas, with the possibility of re-implantation without affecting anal continence.


Subject(s)
Humans , Male , Adult , Female , Middle Aged , Bioprosthesis/trends , Rectal Fistula/surgery , Rectal Fistula/complications , Rectal Fistula/diagnosis , Rectal Fistula/therapy , Rectum/surgery , Fibrin Tissue Adhesive/therapeutic use , Follow-Up Studies , Fecal Incontinence/etiology , Minimally Invasive Surgical Procedures , Observational Studies as Topic , Recurrence , Retrospective Studies , Rectum , Treatment Outcome
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