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Your search keyword '"W. F. van Tets"' showing total 4 results
Start Over Author "W. F. van Tets" Publisher ovid technologies (wolters kluwer health)
4 results on '"W. F. van Tets"'

1. Prospective evaluation of anorectal function after total mesorectal excision for rectal carcinoma with or without preoperative radiotherapy

Author

J. F. M. Slors, Huug Obertop, G. E. E. Boeckxstaens, W. F. van Tets, C. W. Taat, P. van Duijvendijk, G. van Tienhoven, Surgery, Radiotherapy, and Gastroenterology and Hepatology

Subjects
Adult, Male, medicine.medical_specialty, Time Factors, Rectum, Preoperative care, Postoperative Complications, Outcome Assessment, Health Care, Preoperative Care, medicine, Carcinoma, Humans, Fecal incontinence, Prospective Studies, Prospective cohort study, Aged, Aged, 80 and over, Hepatology, Rectal Neoplasms, business.industry, Gastroenterology, Recovery of Function, Middle Aged, medicine.disease, Combined Modality Therapy, Barostat, Total mesorectal excision, Surgery, medicine.anatomical_structure, Defecation, Female, sense organs, medicine.symptom, business
Abstract

OBJECTIVE: Anorectal function is greatly disturbed after rectal surgery with or without radiotherapy (RT). To clarify the underlying mechanisms, we designed a prospective study to evaluate the effect of RT and surgery on anorectal function and clinical outcome of patients with a rectal carcinoma. METHODS: Thirty-four patients with a rectal carcinoma participated in this study. They filled out a symptom questionnaire and underwent anal manometry, anal and rectal mucosal electrosensitivity testing, and a rectal barostat, before surgery, 4 and 12 months postoperatively. Thirteen patients were lost to follow-up, 14 underwent surgery alone (total mesorectal excision [TME]), and seven also received RT (RT + TME). RESULTS: Functional outcome was disappointing in both groups, with at 4 months a significantly higher defecation frequency after RT + TME as compared with TME. Anal sphincter function and rectal sensitivity to pressure-controlled distention were not affected by either treatment. Rectal compliance, however, was significantly reduced after RT + TME at 4 and 12 months, resulting in lower rectal volumes at the thresholds for first sensation and desire to defecate. Rectal but not anal mucosal electrosensitivity was higher after TME + RT. CONCLUSIONS: Anorectal function after rectal surgery with or without RT is greatly hampered because of a decreased rectal compliance. After 12 months, partial improvement is shown, especially in the absence of RT.

Published
2002
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2. Influence of Parks' anal retractor on anal sphincter pressures

Author

K. T. C Tran, R. Mollen, H. van Goor, J. H. C. Kuijpers, and W. F. van Tets

Subjects
Male, Anal Canal, causes and effects (sepsis and inflammation) [Sepsis and non-bacterial generalized inflammation], Postoperative Complications, Surgical, Fecal incontinence, Prospective Studies, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Anastomosis, Surgical, Gastroenterology, Hand Injuries, General Medicine, Middle Aged, Surgical Instruments, Colorectal surgery, Extracellular Matrix, Inflammatory mediator, Retractor, Anesthesia, Female, Inflammation Mediators, medicine.symptom, Anal sphincter, Adult, medicine.medical_specialty, Free Radicals, Anastomosis, Manometry, Multiple Organ Failure, Closed hemorrhoidectomy, mogelijke oorzaken en gevolgen (sepsis en ontsteking) [Sepsis en niet-bacteriële gegeneraliseerde ontsteking], Autonomic Nervous System, Hemorrhoids, Internal anal sphincter, Foot Diseases, Sepsis, Pressure, medicine, Humans, Aged, Inflammation, Animal, Multiple Trauma, business.industry, Surgery, Disease Models, Animal, Disease Models, Anal manometry, Wounds and Injuries, business, Colorectal Surgery, Fecal Incontinence
Abstract

PURPOSE: The effects of the Parks' anal retractor on anal sphincter function were studied in a prospective, randomized trial. A closed hemorrhoidectomy was performed intraanally in 20 patients using the Parks' anal retractor; in 20 other patients, the procedure was done perineally without the use of a retractor. METHODS: Anal manometry was performed before and at 6 and 12 weeks after hemorrhoidectomy. RESULTS: Mean squeeze pressure decreased by 4 percent whether or not a retractor was used. Mean resting pressure decreased by 23 percent after use of Parks' anal retractor (P=0.01) compared with 8 percent when it was not used (P >0,05). CONCLUSIONS: The internal anal sphincter is easily damaged with the use of the Parks' anal retractor. When possible, its use should be avoided to obtain better manometric and functional results.

Published
1997
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3. Disorders of faecal continence

Author

W. F. Van Tets, C. Kuijpers, and J. Han

Subjects
medicine.medical_specialty, Constipation, Lower Gastrointestinal Tract, Hepatology, business.industry, media_common.quotation_subject, Gastroenterology, medicine.disease, Surgery, Rectal prolapse, Feeling, Medicine, Anorectal function, Defecation, Faecal continence, Abnormal results, medicine.symptom, business, Intensive care medicine, media_common
Abstract

Disorders of continence are disorders of the ability to perceive, retain, or excrete faeces, or a combination of these. Disorders of perception are an absent or false feeling of urge. Retentional disorders are soiling, insufficiency and incontinence; disorders of excretion are constipation and complete rectal prolapse. Application of functional tests from the colorectal laboratory is helpful in diagnosing these functional disorders and in arriving at a strategy for treatment. Single tests represent different aspects of anorectal function and need to be performed together. Abnormal results in one test must be interpreted with caution, especially when therapeutic surgery is considered. Continence disorders are difficult to deal with as the symptomatology is often not specific

Published
1993
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4. Podium presentations

Author

E. F. Foley, P. W. Marcello, P. L. Roberts, J. J. Murray, J. A. Coller, M. C. Veidenheimer, D. J. Schoetz, P. B. McIntyre, J. H. Pemberton, B. G. Wolff, R. W. Beart, K. A. Kelly, R. R. Dozois, A. Sugita, T. Fukushima, H. Harada, M. Yamamoto, H. Shimada, J. J. Tjandra, V. W. Fazio, J. W. Milson, I. C. Lavery, J. R. Oakley, J. M. Fabre, L. A. Karch, J. J. Bauer, S. R. Gorfine, I. M. Gelernt, A. M. Metcalf, G. Varilek, J. O. Keck, D. C. Hoffmann, S. A. Sgambati, W. V. Sardella, B. C. Marts, W. E. Longo, A. M. Vernava, D. J. Kennedy, G. L. Daniel, I. Jones, K. S. Venkatesh, L. W. Diamond, D. M. Larson, P. J. Ramanujam, J. R. Hicks, C. N. Ellis, W. S. Blakemore, S. D. Nathanson, M. D. Linden, P. Tender, R. J. Zarbo, L. Nelson, J. Bannon, G. Marks, J. Zhou, M. Mohiuddin, J. Marks, C. W. Pollard, S. Nivatvongs, A. Rojanasakul, D. M. Ilstrup, N. J. Speziale, T. J. Saclarides, D. B. Rubin, D. J. Szeluga, P. J. Morgado, L. G. Gomez, Reis J. A. Neto, F. A. Quilici, F. Cordeiro, J. A. Reis, S. Nitecki, P. Benn, M. G. Sarr, L. H. Weiland, A. Elhadad, F. Rouffet, P. Baillet, T. Akasu, Y. Moriya, K. Hojo, K. Sugihara, H. Oshima, S. K. Liu, J. M. Church, J. R. Kirkpatrick, C. L. Danielson, J. M. Dominguez, S. M. Jakate, M. H. Savin, W. J. Altringer, C. S. Lee, M. P. Spencer, R. D. Madoff, R. C. Barrett, M. A. Oster, P. Durdey, B. L. Stein, R. J. Staniunas, H. Grewal, J. G. Guillem, S. Quan, W. E. Enker, A. M. Cohen, W. F. van Tets, H. C. Kuijpers, B. A. Kerner, W. E. Wise, R. W. Golub, M. W. Arnold, P. S. Aguilar, B. J. Pernikoff, T. E. Eisenstat, R. J. Rubin, G. C. Oliver, E. P. Salvati, P. J. Lunniss, A. H. Sultan, P. G. Barker, P. Armstrong, C. I. Bartram, R. K. S. Phillips, W. R. Schouten, J. W. Briel, J. J. A. Auwerda, J. R. Harnsberger, P. L. Robbins, G. W. Brabbee, A. M. Ryhammer, K. M. Bek, F. Hanberg-Sørensen, S. Laurberg, S. D. Hoff, H. R. Bailey, D. R. Butts, E. Max, K. W. Smith, L. F. Zamora, G. B. Skakun, K. S. Khanduja, H. Lee, R. Spencer, J. S. Wiseman, A. J. Senagore, I. M. Bain, J. Oliff, L. Min, J. Neoptolomos, M. R. B. Keighley, T. J. O'Kelly, J. Davies, A. F. Brading, N. J. McC Mortensen, J.-G. Park, H. J. Han, M. S. Kang, Y. Nakamura, G. S. Goldberg, B. A. Orkin, L. E. Smith, P. R. Fleshner, M. I. Freilich, A. P. Meagher, W. J. Adams, D. Z. Lubowski, D. W. King, M. Moran, F. Opelka, A. Timmcke, T. Hicks, J. B. Gathright, S. Y. Leu, H. Hsu, P. A. Dean, P. S. Ramsey, H. Nelson, G. Philpott, B. Siegel, S. Schwarz, J. Fleshman, M. Welch, J. Connett, W. D. Buie, D. R. Johnson, J. A. Heine, W. D. Wong, D. A. Rothenberger, S. M. Goldberg, A. Shafik, A. MacDonald, J. W. Craig, I. G. Finlay, J. N. Baxter, T. C. Muir, S. Parikh, R. P. Gold, L. Gottesman, R. Annibali, T. Öresland, T. Hallgren, S. Fasth, L. Hultén, R. Farouk, G. S. Duthie, A. B. MacGregor, D. C. C. Bartolo, M. E. R. Williamson, W. G. Lewis, P. J. Holdsworth, N. Hall, P. J. Finan, D. Johnston, F. Seow-Choen, H. S. Goh, R. W. Motson, C. J. Walsh, E. Mooney, H. J. Yamashita, R. F. Hartmann, M. Seccia, C. Menconi, G. Ghiselli, E. Cavina, M. C. Salomon, A. Ferrara, S. W. Larach, P. R. Williamson, E. M. Bass, C. P. Orsay, B. Firfer, V. Ramakrishnan, H. Abcarian, A. J. Bufo, S. Feldman, G. A. Daniels, R. C. Lieberman, P. B. Loder, M. A. Kamm, R. J. Nicholls, C. K. Kum, S. S. Ngoi, P. M. Y. Goh, Y. Tekant, J. R. Isaac, J. T. Gerstle, G. L. Kauffman, and W. A. Koltun

Subjects
Gastroenterology, General Medicine
Published
1993
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