Major predictors and management of small-bowel angioectasia.

BACKGROUND: Small-bowel angioectasias are frequently diagnosed with capsule endoscopy (CE) or balloon endoscopy however, major predictors have not been defined and the indications for endoscopic treatment have not been standardized. The aim of this study was to evaluate the predictors and management of small-bowel angioectasia. METHODS: Among patients with obscure gastrointestinal bleeding (OGIB) who underwent both CE and double-balloon endoscopy at our institution, we enrolled 64 patients with small-bowel angioectasia (angioectasia group) and 97 patients without small-bowel angioectasia (non-angioectasia group). The angioectasia group was subdivided into patients with type 1a angioectasia (35 cases) and type 1b angioectasia (29 cases) according to the Yano-Yamamoto classification. Patient characteristics, treatment, and outcomes were evaluated. RESULTS: Age (P = 0.001), cardiovascular disease (P = 0.002), and liver cirrhosis (P = 0.003) were identified as significant predictors of small-bowel angioectasia. Multivariate logistic regression analysis identified cardiovascular disease (odds ratio 2.86; 95% confidence interval, 1.35-6.18) and liver cirrhosis (odds ratio 4.81; 95% confidence interval, 1.79-14.5) as independent predictors of small-bowel angioectasia. Eleven type 1a cases without oozing were treated conservatively, and 24 type 1a cases with oozing were treated with polidocanol injection (PDI). Re-bleeding occurred in two type 1a cases (6%). Seventeen type 1b cases were treated with PDI and 12 type 1b cases were treated with PDI combined with argon plasma coagulation (APC) or clipping. Re-bleeding occurred in five type 1b cases (17%) that resolved after additional endoscopic hemostasis in all cases. There was one adverse event from endoscopic treatment (1.6%). CONCLUSIONS: Cardiovascular disease and liver cirrhosis were significant independent major predictors of small-bowel angioectasia. Type 1a angioectasias with oozing are indicated for PDI and type 1b angioectasias are indicated for PDI with APC or clipping.

[Lymphedema: anatomy, physiology and pathophysiology of lymphedema, definition and classification of lymphedema and lymphatic vascular malformations]. / Das Lymphödem - Anatomie, Physiologie und Pathophysiologie des Lymphödems, Definition und Klassifizierung des Lymphödems und lymphatischer Gefäßmalformationen.

Lymphedema is a chronic disease associated with a congenital or acquired disorder of the lymphatic vessels or lymph nodes. Untreated lymphedema can lead to complications and disability. Clinical Lymphology deals not only with lymphedema of the extremities but also of the head, the genitals and the internal organs (lymphostatic enteropathy, chylaskos, chylothorax, chylopericard etc). Symptoms of this disorder are often misdiagnosed or not recognized. Ignorance and trivialization of lymphedema causes insufficient treatment, which then is not carried out to the extent as it is possible today by scientific findings. Even today delayed or not optimal treatment causes a long ordeal for many patients.The fact that lymphedema for those affected is a major psychological and social burden, which is limiting the quality of life, has also often been unregarded. The knowledge of anatomy, physiology and pathophysiology as well as the knowledge of causes are necessary for diagnosis, so that early treatment can be initiated.

[Difficulties in diagnosis and surgical treatment of the angiodysplasia of the gastrointestinal tract]. / Dificultati de diagnostic si tratament chirurgical în angiodisplaziile tractului gastrointestinal.

BACKGROUND: Angiodysplasia (AD) of the gastrointestinal (GI) tract is a rare cause of surgical GI bleeding. It frequently poses difficult problems in diagnosis and treatment. The purpose of this study is to find answers to these problems for a better management of the AD patients. MATERIALS: From 1982 to 2006 a total of 75 patients suffering of AD of the GI tract were operated in our center. They represent about 3.6% of total patients operated for GI bleeding in the same period. The age of the patients was between 9 and 81 years old, with two peaks: one between 21 and 40 years old and the other between 51 and 70 years old. The localisation of the lesions was: righ colon +/- ileum 31 patients (41.33%), stomach 13 patients (17.33%), jejunum 6 patients (8%), descendent colon +/- sigmoid 5 patients (6.66%), rectum 4 patients (5.33%), pan-colonic 4 patients (5.33%), sigmoid colon 2 patients (2.66%), cecum + transverse colon 2 patients (2.66%), ileum 2 patients (2.66%), sigmoid colon + jejunum 1 patient (1.33%), cecum + sigmoid colon 1 patient (1.33%), cecum +/- sigmoid colon + jejunum 1 patient (1.33%), jejunum + ileum 1 patient (1.33%), pan-colonic + rectum 1 patient (1.33%). According to Moore classifications 29 patients were type 1 (38%) and 45 patients were type 2 (60%). In one patient AD was associated with Crohn disease (type 4 Fowler). RESULTS: The main symptom in AD was repetitive GI bleeding, of various amplitude, often obscure in origin, the patients having many hospital entries. The medical examination that give us the best help was selective angiography which was positive in 34 of 40 patients (85%). Upper and lower endoscopy were give to 50 surgical patients, being diagnostic in 32 (64%). Histopathologic examinations confirm the diagnosis of AD in all cases, without using injection techniques. All patients were operated for symptomatic AD. Other 11 patients non included in this study were find to have angiodysplastic lesions on operatory specimens for other diseases. The main indications for operative in AD were: continuing digestive hemorrhage of growing amplitude with detected source (54 patients = 72%), inefficient endoscopic and angiographic hemostasis (8 patients = 10.66%) and patients with massive bleeding without any preoperative evaluation (13 patients = 17%). Intraoperative exploration produced little information because of the mucosal and submucosal localisation of the lesions. Operative panendoscopy was the most rewarding investigation. Various types of resections were practiced depending on the site(s) known or presumed of the lesions. Perioperative morbidity was 23% (21 patients), rebleeding being in 4 patients (5.33%). Perioperative mortality was 12% (9 patients) a consequence of advanced age, comorbid conditions and frequent extreme emergency of the operations. CONCLUSIONS: Although rare as a cause of surgical digestive bleeding, AD poses often difficult problems of diagnosis and treatment. In patients with GI bleeding, without evident cause, multiple investigated, especially elderly but not always, we must think of an AD.

Diffuse microscopic angiodysplasia--a previously unreported variant of angiodysplasia. Report of a case.

PURPOSE: The entity of diffuse microscopic angiodysplasia is described, and a patient with severe gastrointestinal hemorrhage because of this submucosal source of bleeding is reported. METHOD: Case records of a patient with severe gastrointestinal hemorrhage were reviewed, and histologic findings were compared with colonoscopic and operative findings. The patient received 51 units of packed red blood cells over 3.5 months and remained undiagnosed, despite an exhaustive evaluation, until autopsy. RESULTS: Ectatic veins, venules, and capillaries were present within the submucosa in virtually every section of the small and large intestine examined (79 of 86 sections). Histologic evidence of bleeding from these submucosal vessels was identified in three sites (colon, jejunum, and ileum). The absence of endoscopically visible lesions was explained by findings that vessels did not traverse the muscularis mucosa and that mucosal depth was normal. This case of diffuse microscopic angiodysplasia, therefore, represents a unique variant, because the vascular findings were so diffuse and the mucosa remained histologically and endoscopically uninvolved, despite severe bleeding. CONCLUSION: Gastrointestinal bleeding from angiodysplasia is generally assumed to arise from endoscopically recognizable vascular ectasia within the mucosa. Thus, this case helps provide an explanation for some cases in which occult or massive bleeding is assumed to be secondary to angiodysplasia, even when endoscopic verification is not possible. Recognition of this disease process may require segmental resection or deep biopsy of endoscopically normal intestine.

[Hemangiomas and superficial vascular malformations: classification]. / Hémangiomes et malformations vasculaires superficielles: classification.

Superficial vascular malformations of the face, trunk and limbs are better known today, and they can be divided up into simple and complex vascular malformations. Simple vascular malformations may form five major categories: immature hemangiomas of infants, port-wine stains, capillarovenous angiodysplasias, and arteriovenous fistulae and malformations. Complex angiodysplasias are systematized (Sturge-Weber and Bonnet-Dechaume-Blanc syndromes, Cobb's metameric angiomatosis, Klippel-Trenaunay and Parkes Weber's syndromes) or disseminated (Weber-Osler-Rendu disease and blue rubber-bleb nevus syndrome). Various modalities of treatment may be contemplated, according to the type of malformations, and an interdisciplinary consultation is essential to decide whether a watch-and-wait policy, a physical method (laser), embolization, fibrosing injections, vascular, maxillofacial or plastic surgery, or a successive combination of various techniques should be resorted to.