Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Eric Ponette is active.

Publication


Featured researches published by Eric Ponette.


Gastroenterology | 1997

Healing of Severe Recurrent Ileitis With Azathioprine Therapy in Patients With Crohn's Disease

Geert R. D'Haens; Karel Geboes; Eric Ponette; Paul Rutgeerts

BACKGROUND & AIMS Standard corticosteroid therapy for Crohns ileitis induces symptom relief without improvement of endoscopically visible lesions. In this study, the effect of azathioprine therapy on the inflammatory lesions in the neoterminal ileum of patients with severe postoperative Crohns recurrence was examined. METHODS Macroscopic ileal lesions were studied endoscopically or radiologically after at least 6 months of azathioprine therapy after complete weaning of corticosteroids. All patients who underwent an ileocecal resection for Crohns disease at our institution between January 1989 and December 1993 and who subsequently developed severe recurrent ileitis treated with azathioprine were included. RESULTS Of the 19 patients treated with azathioprine for recurrent ileitis, 15 could be reevaluated by endoscopy or radiological examination. The therapy resulted in induction and maintenance of clinical remission in all 15 patients, at least 6 months after complete weaning of the corticosteroids. Complete macroscopic healing of the neoterminal ileum was observed in 6 of 15 patients, near-complete healing with only superficial erosions remaining in 5 of 15 patients, partial healing in 3 of 15 patients, and unchanged inflammatory lesions in 1 patient. CONCLUSIONS It is concluded that azathioprine leads to mucosal healing in severe recurrent Crohns ileitis and may be the treatment of choice in this indication.


Journal of Magnetic Resonance Imaging | 1999

Pelvic floor descent in females: comparative study of colpocystodefecography and dynamic fast MR imaging.

Dirk Vanbeckevoort; L Van Hoe; Raymond Oyen; Eric Ponette; Dirk De Ridder; Jan Deprest

The purpose of this study was to compare fast dynamic magnetic resonance imaging (MRI) with colpocystodefecography (CCD) in the evaluation of pelvic floor descent in women. Thirty‐five women with clinical evidence of pelvic floor descent were studied. A fast single‐shot MR sequence was performed in the supine position during pelvic floor relaxation and during maximal pelvic strain. On the same day, a dynamic CCD was performed with the patient seated on a stool‐chair. The degree of descent of the bladder, vagina, and anorectal junction was evaluated as the vertical distance between the pubococcygeal line and the bladder base, the vaginal vault, and the anorectal junction, respectively. A bulge of more than 3 cm measured as the distance between the extended line of the anterior border of the anal canal and the tip of the rectocele was interpreted as a rectocele. MRI was compared with CCD during maximal pelvic strain (CCD I) and during voiding and defecation (CCD II). CCD was considered as the gold standard. Compared with clinical examination, CCD I showed a larger number of involved compartments, except for the middle compartment. CCD II was superior to clinical examination in all cases. In comparison with CCD I and especially CCD II, MRI had a lower sensitivity, especially for the anterior and middle compartment. Even four enteroceles seen on CCD II were not detected by MRI. When CCD I and CCD II were compared, a cystocele, a vaginal vault prolapse, an enterocele, and a rectocele were more readily seen on CCD II than with CCD I. When compared with CCD, supine dynamic MRI is unreliable, especially in the anterior and middle compartment. Even in the detection of enteroceles CCD was superior to MRI. In general, the best results with MRI can be expected for evaluation of the rectum.J. Magn. Reson. Imaging 1999;9:373–377.


Dysphagia | 1997

Mechanisms involved in postdeglutition retention in the elderly

Eddy Dejaeger; Walter Pelemans; Eric Ponette; Etienne Joosten

Abstract. This study examines possible quantifiable causes of postdeglutition pharyngeal retention in the elderly. Manofluorography and computer processing of video images are performed. Retention in the valleculae and in the piriform sinuses is associated with a markedly reduced pharyngeal shortening, a low tongue driving force (TDF), and a diminished amplitude of the pharyngeal contraction. There is no relationship with the hypopharyngeal suction pump (HSP). Retention limited to the valleculae is associated with a low TDF, and retention restricted to the piriform sinuses is accompanied by a reduced pharyngeal shortening.


Gastrointestinal Endoscopy | 1984

The value of ileoscopy with biopsy in the diagnosis of intestinal Crohn’s disease

Georges Coremans; Paul Rutgeerts; K. Geboes; J. J. van den Oord; Eric Ponette; Gaston Vantrappen

Studies to determine the diagnostic value of ileoscopy and biopsy are not available. In an attempt to clarify the role of this technique in the diagnosis of intestinal Crohns disease, 110 patients with a radiological diagnosis of inflammatory disease of the terminal ileum were examined in a prospective study. Suspicion of Crohns disease was rejected in 28 patients. In 18 patients the terminal ileum was normal, while 10 patients had lymphoid nodular hyperplasia. Endoscopic lesions with a predictive value of 0.96 were found in 25 of 48 patients with the final diagnosis of Crohns disease. Diagnostic granulomas were only found in 4 patients, but lesions consistent with Crohns disease were present in the pathology sections of 17 patients. It was concluded that ileoscopy with biopsy is a valuable tool in the diagnosis of inflammatory ileal disease and can provide useful information about the nature and extent of the inflammation.


Dysphagia | 1994

Manofluorographic Analysis of Swallowing in the Elderly

Eddy Dejaeger; Walter Pelemans; G Bibau; Eric Ponette

This study examined the effect of aging on the mechanisms of swallowing by comparing 16 elderly subjects (80 years±5) with 20 healthy volunteers. Manofluorography was used to obtain quantitative and qualitative data of the pharyngeal swallow. Aging is associated with a significant decrease in the level of negative pressure resulting from the opening of the upper esophageal sphincter and with a substantial number of incomplete relaxations of the sphincter. In addition, several qualitative changes were noted.


Digestive Diseases and Sciences | 1994

Effect of body position on deglutition

Eddy Dejaeger; Walter Pelemans; Eric Ponette; Gaston Vantrappen

This study examined the effects of changes in body position on different swallowing parameters derived from manofluorographic examinations. Quantitative data were obtained in a group of 12 young healthy volunteers. They were all tested in the upright position; six of them were also evaluated in the supine position, and the other six in the upside down position. In the different positions all volunteers were able to swallow a liquid bolus without aspiration or stasis. However, the dynamics of the swallow became different. Lying down resulted in a pharyngeal transit time comparable with the upright position. The tongue driving force was higher and the hypopharyngeal suction power weakened. In the upside down position, the pharyngeal transit time became longer and the tongue driving force was even more powerful. There was no apparent difference in the traditional manometric parameters; the amplitude, duration, and propagation velocity of the pharyngeal contraction on swallowing did not change obviously in the different body positions.


Journal of Clinical Gastroenterology | 1987

Ulcerative colitis, primary sclerosing cholangitis, bile duct carcinoma, and generalized sarcoidosis. Report of a unique association

Werner Van Steenbergen; Johan Fevery; Paul Vandenbrande; Valeer Desmet; Eric Ponette; Raymond Kerremans; Jan De Groote

We describe a young man with a hitherto unreported association of chronic ulcerative colitis, primary sclerosing cholangitis (PSC), bile duct carcinoma, and generalized sarcoidosis with features of high-intensity alveolitis. This finding suggests that common immunological mechanisms may be involved in the pathogenesis of these diseases.


Journal of the American Geriatrics Society | 1993

Percutaneous Transhepatic Cholecystostomy for Acute Complicated Calculous Cholecystitis in Elderly Patients

Werner Van Steenbergen; Hans Rigauts; Eric Ponette; Willy Peetermans; Walter Pelemans; Johan Fevery

To assess the immediate and long‐term outcomes of elderly patients with acute complicated cholecystitis treated by percutaneous cholecystostomy. To assess the results of bile cultures obtained in this group of patients.


Journal of Clinical Gastroenterology | 1993

Proctitis and rectal stenosis induced by nonsteroidal antiinflammatory suppositories.

Geert R. D'Haens; Y Breysem; Paul Rutgeerts; B van Besien; Karel Geboes; Eric Ponette; Gaston Vantrappen

Anorectal ulceration eventually leading to rectal stenosis was observed in 10 patients who abused analgetic suppositories containing acetylsalicylic acid, acetaminophen, and codeine. Most patients were middle-aged women with a neurotic or psychiatric background. Perianal skin lesions were present in half of the patients. The endoscopic aspect of the sharply demarcated distal rectal lesions with squamous and transitional epithelium (anoderm) ascending from the anal canal was rather typical, but the appearances on biopsy were nonspecific. Possible pathophysiological mechanisms include mucosal prostaglandin depletion secondary to blockade of cyclooxygenase and shift to lipoxygenase products in the arachidonic acid cascade. Treatment options include drug cessation, topical steroids, and endoscopic dilation. Supporting psychological therapy often is necessary.


Journal of Hepatology | 1987

Hepatic echinococcosis ruptured into the biliary tract. Clinical, radiological and therapeutic features during five episodes of spontaneous biliary rupture in three patients with hepatic hydatidosis

W. Van Steenbergen; Johan Fevery; L Broeckaert; Eric Ponette; Guy Marchal; A L Baert; Raymond Kerremans; J. De Groote

Three patients are described with hepatic involvement by Echinococcus granulosus, complicated by spontaneous rupture into the biliary tract. Clinical features consisted of upper abdominal pain, jaundice, fever, anorexia, and vomiting. Hepatomegaly and marked epigastric tenderness were consistently observed. Laboratory findings included obstructive liver function tests, leucocytosis, eosinophilia, and hyperamylasemia. Abdominal computed tomography, showing the cystic wall, the presence of wall calcifications, daughter cysts and wall enhancement, provided a correct diagnosis of hepatic hydatidosis in all patients. Dilatation of the bile ducts with the presence of intraluminal material was clearly shown by sonography and endoscopic retrograde cholangiography. These abnormalities were most frequently found in the common bile duct and in the left hepatic duct. On sonography, the intraluminal material appeared as amorphous, sludge-like hydatid sand, and as daughter cysts. On ERCP, the intrabiliary parasitic material appeared as non-homogeneous, irregularly shaped and mobile filling defects. Other findings at ERCP were displacement and distortion of intrahepatic bile ducts by the hepatic cysts and a mild dilatation of the pancreatic duct. In one occasion, evacuation of a daughter cyst through the papilla was observed. The therapeutic value of mebendazole and endoscopic sphincterotomy in our patients is discussed.

Collaboration


Dive into the Eric Ponette's collaboration.

Top Co-Authors

Avatar

Karel Geboes

Katholieke Universiteit Leuven

View shared research outputs
Top Co-Authors

Avatar

Gaston Vantrappen

Katholieke Universiteit Leuven

View shared research outputs
Top Co-Authors

Avatar

A L Baert

Katholieke Universiteit Leuven

View shared research outputs
Top Co-Authors

Avatar

Guy Marchal

Katholieke Universiteit Leuven

View shared research outputs
Top Co-Authors

Avatar

Werner Van Steenbergen

Katholieke Universiteit Leuven

View shared research outputs
Top Co-Authors

Avatar

Johan Fevery

Katholieke Universiteit Leuven

View shared research outputs
Top Co-Authors

Avatar

Raymond Kerremans

Katholieke Universiteit Leuven

View shared research outputs
Top Co-Authors

Avatar

Walter Pelemans

Katholieke Universiteit Leuven

View shared research outputs
Top Co-Authors

Avatar

Albert Baert

Katholieke Universiteit Leuven

View shared research outputs
Top Co-Authors

Avatar

J. De Groote

Katholieke Universiteit Leuven

View shared research outputs
Researchain Logo
Decentralizing Knowledge