1,720,973 research outputs found
TRATTAMENTO DELLE ULCERE PEPTICHE RESISTENTI E RECIDIVANTI CON PLACENTA LUCCHINI E FARMACI ANTI-H2
No full textStapled hemorrhoidopexy in the treatment of hemorrhoid disease. Our eight-year experience
No full textAim. Stapled hemorrohoidopexy using Longo technique (PM) is accompanied by good postoperative outcomes. The aim of this study was to report the data regarding our experience with stapled hemorrhoidopexy, the results of the operations and the complications rate in comparison with those published in the literature. Methods. In our Department 127 patients with symptomatic hemorrhoids have been selected between November 2000 and December 2008 for PPH. This retrospective study included patients with a rectal prolapse from second to fourth degree. Results. Two patients had an anal bleeding on the day of surgery. All of them were returned to the operating theatre. A third patient had an anal bleeding that did not require a second surgical intervention. In one case a postoperative stenosis occurred that required a reoperation three days after the dismission from hospital. In one case an urgency occurred, with transitional fecal incontinence, spontaneously regressed two weeks after the intervention. No urinary retention occurred in our caseload. Pain was referred by 37 patients and was controlled by standard analgesia in all cases. No cases of chronic pain were detected. There were no cases of anal stenosis, permanent incontinence or deaths in this series. Conclusion. Among the cases examined important complications occurred in five (3.9%), but reintervention was necessary only for three patients (2.4%). This study confirms that PPH, used on patients with a rectal prolapse from second to fourth degree, is feasible and safe
Mucoprolassectomia con suturatrice circolare: utilizzo di un nuovo device
No full textLa tecnica di mucoprolassectomia secondo Longo è
ampiamente utilizzata in numerosi centri chirurgici e numerosi studi la hanno comparata alle altre tecniche di emorroidectomia non dimostrando una reale superiorità della metodica. Noi riportiamo i risultati ottenuti con un nuovo device, EEATM 33-mm Hemorrhoid and Prolapse
Stapler Set con DST SeriesTM (CovidienTM) utilizzato su una casistica di 65 pazienti. In definitiva possiamo concludere che il nuovo dispositivo rende più facile l’intervento chirurgico e fa si che la metodica sia più standardizzata. La migliore visibilità durante l’intervento chirurgico conferisce garanzie di sicurezza maggiori. Inoltre, grazie
alle caratteristiche del device, si riducono notevolmente quelle difficoltà che si riscontravano con altri device in pazienti con il bacino piccolo e con una ridotta distanza tra le tuberosità ischiatiche.Stapled transanal mucosectomy is widely used by a lot of surgeon and in RCT, when compared to other haemorrhoidectomy techniques, it didn't show a real primacy. We describe results obtained with a new device, the EEATM 33-mm Hemorrhoid and Prolapse Stapler Set con DST SeriesTM (CovidienTM), used on 65 patients. We conclude that the new device makes easy and standardized surgery. The new device reduce a lot of difficult in patients with tight pelvis and a small distance between ischiatic tubers
Rubber band ligation in treatment of hemorrhoids. Our experience
No full textHemorrhoids are a very common condition. The treatment depends upon persistence and severity of symptoms. For hemorrhoids of II and III grade the rubber band ligation may be therapeutic. Our aim is to report the outcomes of rubber band ligation of hemorrhoids, with a follow up of 6 months. A total of 50 patients underwent rubber band ligation for symptomatic hemorrhoids (grade II and III) without prolapse, between June 2012 and June 2014. All patients underwent plug test to rule out presence of rectal mucosal prolapse and were classified according to PATE classification (1). Each hemorrhoid was ligated with one rubber band through a ligator. All patients were evaluated immediately at the end of the procedure, after ten days and six months after the treatment. Patient’s demographic and operative data were collected and analyzed.
The mean patients age was 47.6±12.3 years (range 24-72). All procedures were performed without complications. Before rubber band ligation, 42 patients had rectal bleeding, 38 had perineal discomfort and 27 had itching. Ten days after the treatment, 12 patients presented self-limited rectal bleeding, but 10 of these had more hemorrhoids and underwent a second rubber band ligation. No patients complained perineal discomfort, and 8 patients had itching; 78% and 16% of patients respectively, experienced feeling of a foreign body inside the canal anal and anal pain. After 6 months, only 13 patients were occasionally symptomatic: 4 patients had rectal bleeding, 2 had perineal discomfort and 4 had itching. Three more patients presented both perineal discomfort and hitching. None had the feeling of a foreign body in anal canal or anal pain.
Rubber band ligation is an efficacious, cost-effective and simple treatment for the second and third degree hemorrhoids without rectal mucosal prolapsed. In our hands, no severe complications developed and minor complications could be handled with ease.Hemorrhoids are a very common condition. The treatment depends upon persistence and severity of symptoms. For hemorrhoids of II and III grade the rubber band ligation may be therapeutic. Our aim is to report the outcomes of rubber band ligation of hemorrhoids, with a follow up of 6 months. A total of 50 patients underwent rubber band ligation for symptomatic hemorrhoids (grade II and III) without prolapse, between June 2012 and June 2014. All patients underwent plug test to rule out presence of rectal mucosal prolapse and were classified according to PATE classification (1). Each hemorrhoid was ligated with one rubber band through a ligator. All patients were evaluated immediately at the end of the procedure, after ten days and six months after the treatment. Patient’s demographic and operative data were collected and analyzed.
The mean patients age was 47.6±12.3 years (range 24-72). All procedures were performed without complications. Before rubber band ligation, 42 patients had rectal bleeding, 38 had perineal discomfort and 27 had itching. Ten days after the treatment, 12 patients presented self-limited rectal bleeding, but 10 of these had more hemorrhoids and underwent a second rubber band ligation. No patients complained perineal discomfort, and 8 patients had itching; 78% and 16% of patients respectively, experienced feeling of a foreign body inside the canal anal and anal pain. After 6 months, only 13 patients were occasionally symptomatic: 4 patients had rectal bleeding, 2 had perineal discomfort and 4 had itching. Three more patients presented both perineal discomfort and hitching. None had the feeling of a foreign body in anal canal or anal pain.
Rubber band ligation is an efficacious, cost-effective and simple treatment for the second and third degree hemorrhoids without rectal mucosal prolapsed. In our hands, no severe complications developed and minor complications could be handled with ease
Graphitic carbon nitride meets molecular oxygen: New sustainable photocatalytic ways for the oxidation of organic molecules
Full text linkIn recent years, organic chemists have taken a resolute step toward green photocatalytic synthesis. In this regard, the oxidation of organic compounds with molecular oxygen is one of the most important classes of transformations, as it increases molecular complexity while avoiding the use of toxic and harmful oxidants. To this aim, the development of new and efficient photocatalysts capable of driving valuable oxidative reactions in a sustainable manner is highly desirable. These novel photocatalytic systems need to be metal-free, easy-to-prepare, and potentially recyclable. Carbon nitride (CN) fulfills all these requirements because of its outstanding physicochemical properties, thus emerging as a promising heterogeneous photocatalytic platform. The growing popularity of this material is also substantiated by its fast and facile preparation from readily available and inexpensive molecular precursors. This Review aims at highlighting the recent advances in synthesis of carbon nitride-based materials and their applications in organic photocatalysis for the oxidation of organic molecules in presence of molecular oxygen. Lastly, forward-looking opportunities within this intriguing research field are
mentioned
Giant mesenteric fibromatosis.
No full textMesenteric fibromatosis is a proliferative fibroblastic neoplasia of the small intestine mesentery which may occur as a unique or multiple formation. Mesenteric fibromatosis represents the 8% of all desmoid neoplasm. Giant mesenteric fibromatosis is uncommon by itself (2-4 case/milion/year). Since the rarity of this tumor and the difficulties in diagnostic and therapeutic ambit, we believe it justified to describe a case of giant mesenteric fibromatosis which came to our observation
Toward Reliable and Reproducible Research in Organic Photocatalysis by Carbon Nitride
No full textThe rate of scientific publications has grown exponentially over the past few decades, but this has come at the expense of reproducibility. In this context, fields like organic photocatalysis and materials synthesis have also been affected. This Perspective aims at providing general guidelines to increase trustworthiness and favor reproducibility for those interdisciplinary researchers working on organic photocatalytic transformations catalyzed by carbon-nitride-based materials. Thus, the article focuses on the importance of accurately reporting and describing all the stages of experimental work, from the photocatalyst synthesis and characterization to the evaluation of the reaction conditions, control experiments, and─more generally─all the details that may ensure reproducibility. Additionally, we investigate and discuss the risks of falling into inadequate research practices, emphasizing that irreproducibility in science is a major problem that undermines the utility and credibility of scientific research. These aspects are crucial for the scientific community, and we emphasize the need to raise awareness and educate researchers toward best experimental practices
Improvement in the fertility rate after placement of microsurgical shunts in men with recurrent varicocele.
No full textOBJECTIVE: To evaluate the effectiveness of microsurgical shunts for secondary varicocele repair after ligation-like procedures, focusing on long-term functional outcomes. DESIGN: Long-term survey (mean follow-up, 8.5 years) of infertile men after secondary microsurgical reconstructive varicocelectomy. SETTING: University-based medical center. PATIENT(S): Thirty-four infertile men (group A, 30 years) with recurrent palpable varicocele after varicocelectomy, according to Ivanissevich (n = 28), or after angiographic vein occlusion (n = 6). Ten patients presented bilateral recurrence. INTERVENTION(S): Microsurgical shunts between spermatic vein and inferior epigastric vein. MAIN OUTCOME MEASURE(S): Sperm count, pregnancy rate, and ultrasound evaluation of varicosity. RESULT(S): Complete disappearance of varicosity was achieved in 97.06% of patients, while in 2.94%, a consistent reduction in size was observed. In patients with severe infertility, a significant postoperative increase in seminal parameters was observed. Pregnancy rates were 43.75% in group A and 22.22% in group B. CONCLUSION(S): Microsurgical drainage in patients with recurrent varicocele after ligation-like procedures was shown to be an effective minimally invasive treatment, with immediate hemodynamic recovery of testicular venous outflow and excellent long-term results in patients with left or bilateral recurrences
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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