{"id":{"repo_id":"aachen","oai_identifier":"oai:publications.rwth-aachen.de:59706"},"canonical_url":"https://search.dev.ndltd.org/etd/aachen/oai:publications.rwth-aachen.de:59706","repository":{"repo_id":"aachen","name":"RWTH Aachen University","base_url":"https://publications.rwth-aachen.de/oai2d"},"display":{"title":"Mechanische Thromboseprophylaxe bei Hüft-Endoprothesen : prospektive Studie zum Einsatz des Venaflow-Gerätes","abstract":"Background: Patient receiving a total hip replacement, have higher risk for thromboembolic complications. Using current regimes of prophylaxis the probability for a deep vein thrombosis (dvt) amount to 3-15%. In this prospective, randomised study we explore the benefit of the additional use of a venous calf pump (Venaflow). Methods From November 1998 until December 1999 145 patients were admitted for elective total hip replacement to the clinic for orthopaedic surgery at the university of Aachen. All patients received Low molecular weight heparin (LMWH; Fragmin), wore antithrombotic stockings and were mobilised the first day after operation. After theatre n=39 patients received the Venaflow for 3 days, further n=57 patients were followed up in the control- group. Every day during the doctor's round clinical signs for dvt were examinated. In case of thrombotic sign a venography was arranged. N=52 patients were routinely examinated by duplex-sonography (26 from the Venaflow-group and 26 from the control-group) 9 days after surgery. Also 6 weeks after surgery all patients were asked for thromboembolic complications. All patients in the Venaflow-group received a questionnaire about comfort and handling. Results: Because of excluding criterions or rejection of participation n=49 patients did not take part in the study. N=8 cases with clinical sign lead to a negative venography. In the sonography n=3 dvt without any clinical signs were found, two (7,7%) of those in the Venaflow-group, one (3,8%)in the other group. No statistically test were made because not every patient was examinated by sonography. There was no pulmonary embolism. There was no clinical thromboembolic incidence reported 6 weeks after surgery. The questionnaire that was given to all patients of the Venaflow-group, was completed by n=23 (88,5%). The contentedness was moderate. N=8 (40 %) patients describe it as comfortable or inconspicuous, n=11 (55%) as light bothering or bothering. One Patient was disturbed and finished the treatment by himself. In comparison to the heparin injections it was described as more comfortable anyhow. The sleep was only little more disturbed, than anyhow after such an operation. Conclusion: Altogether a definite statement about the worth of this combined prophylaxis with intermittent pneumatic compression and LMWH cannot be given. The contentedness was moderate, what if used routinely will probable reduce the compliance, when using it in combination with LMWH. Larger prospective, clinical studies are required but they will also get problems, which will cut down the significance.","abstract_html":"Background: Patient receiving a total hip replacement, have higher risk for thromboembolic complications. Using current regimes of prophylaxis the probability for a deep vein thrombosis (dvt) amount to 3-15%. In this prospective, randomised study we explore the benefit of the additional use of a venous calf pump (Venaflow). Methods From November 1998 until December 1999 145 patients were admitted for elective total hip replacement to the clinic for orthopaedic surgery at the university of Aachen. All patients received Low molecular weight heparin (LMWH; Fragmin), wore antithrombotic stockings and were mobilised the first day after operation. After theatre n=39 patients received the Venaflow for 3 days, further n=57 patients were followed up in the control- group. Every day during the doctor's round clinical signs for dvt were examinated. In case of thrombotic sign a venography was arranged. N=52 patients were routinely examinated by duplex-sonography (26 from the Venaflow-group and 26 from the control-group) 9 days after surgery. Also 6 weeks after surgery all patients were asked for thromboembolic complications. All patients in the Venaflow-group received a questionnaire about comfort and handling. Results: Because of excluding criterions or rejection of participation n=49 patients did not take part in the study. N=8 cases with clinical sign lead to a negative venography. In the sonography n=3 dvt without any clinical signs were found, two (7,7%) of those in the Venaflow-group, one (3,8%)in the other group. No statistically test were made because not every patient was examinated by sonography. There was no pulmonary embolism. There was no clinical thromboembolic incidence reported 6 weeks after surgery. The questionnaire that was given to all patients of the Venaflow-group, was completed by n=23 (88,5%). The contentedness was moderate. N=8 (40 %) patients describe it as comfortable or inconspicuous, n=11 (55%) as light bothering or bothering. One Patient was disturbed and finished the treatment by himself. In comparison to the heparin injections it was described as more comfortable anyhow. The sleep was only little more disturbed, than anyhow after such an operation. Conclusion: Altogether a definite statement about the worth of this combined prophylaxis with intermittent pneumatic compression and LMWH cannot be given. The contentedness was moderate, what if used routinely will probable reduce the compliance, when using it in combination with LMWH. Larger prospective, clinical studies are required but they will also get problems, which will cut down the significance.","abstract_has_math":false,"creators":["de Boer, Lucas Peter"],"institution":"Publikationsserver der RWTH Aachen University","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Niethard, Fritz Uwe"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2004,"date_issued":"2004","date_published":"2004","updated_at":"2026-07-30T19:42:48Z","subjects":["info:eu-repo/classification/ddc/610","Medizin","IPK","Thromboseprophylaxe","Venaflow"],"languages":["ger"],"rights":["info:eu-repo/semantics/openAccess"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-121467%22"],"render_values":[{"text":"https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-121467%22","href":"https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-121467%22","code":true}]}]},"links":{"outbound_url":"https://publications.rwth-aachen.de/record/59706","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Niethard, Fritz Uwe"]},{"key":"dc:creator","label":"Author","values":["de Boer, Lucas Peter"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:coverage","label":"Dc Coverage","values":["DE"]},{"key":"dc:date","label":"Dc Date","values":["2004"]},{"key":"dc:publisher","label":"Institution","values":["Publikationsserver der RWTH Aachen University"]},{"key":"dc:relation","label":"Dc Relation","values":["info:eu-repo/semantics/altIdentifier/urn/urn:nbn:de:hbz:82-opus-9717"]},{"key":"dc:type","label":"Dc Type","values":["info:eu-repo/semantics/doctoralThesis","info:eu-repo/semantics/publishedVersion"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["info:eu-repo/classification/ddc/610","Medizin","IPK","Thromboseprophylaxe","Venaflow"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["ger"]},{"key":"dc:rights","label":"Dc Rights","values":["info:eu-repo/semantics/openAccess"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://publications.rwth-aachen.de/record/59706","https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-121467%22"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Background: Patient receiving a total hip replacement, have higher risk for thromboembolic complications. Using current regimes of prophylaxis the probability for a deep vein thrombosis (dvt) amount to 3-15%. In this prospective, randomised study we explore the benefit of the additional use of a venous calf pump (Venaflow). Methods From November 1998 until December 1999 145 patients were admitted for elective total hip replacement to the clinic for orthopaedic surgery at the university of Aachen. All patients received Low molecular weight heparin (LMWH; Fragmin), wore antithrombotic stockings and were mobilised the first day after operation. After theatre n=39 patients received the Venaflow for 3 days, further n=57 patients were followed up in the control- group. Every day during the doctor's round clinical signs for dvt were examinated. In case of thrombotic sign a venography was arranged. N=52 patients were routinely examinated by duplex-sonography (26 from the Venaflow-group and 26 from the control-group) 9 days after surgery. Also 6 weeks after surgery all patients were asked for thromboembolic complications. All patients in the Venaflow-group received a questionnaire about comfort and handling. Results: Because of excluding criterions or rejection of participation n=49 patients did not take part in the study. N=8 cases with clinical sign lead to a negative venography. In the sonography n=3 dvt without any clinical signs were found, two (7,7%) of those in the Venaflow-group, one (3,8%)in the other group. No statistically test were made because not every patient was examinated by sonography. There was no pulmonary embolism. There was no clinical thromboembolic incidence reported 6 weeks after surgery. The questionnaire that was given to all patients of the Venaflow-group, was completed by n=23 (88,5%). The contentedness was moderate. N=8 (40 %) patients describe it as comfortable or inconspicuous, n=11 (55%) as light bothering or bothering. One Patient was disturbed and finished the treatment by himself. In comparison to the heparin injections it was described as more comfortable anyhow. The sleep was only little more disturbed, than anyhow after such an operation. Conclusion: Altogether a definite statement about the worth of this combined prophylaxis with intermittent pneumatic compression and LMWH cannot be given. The contentedness was moderate, what if used routinely will probable reduce the compliance, when using it in combination with LMWH. Larger prospective, clinical studies are required but they will also get problems, which will cut down the significance."]},{"key":"dc:source","label":"Dc Source","values":["Aachen : Publikationsserver der RWTH Aachen University 87 S. : graph. Darst. (2004). = Aachen, Techn. Hochsch., Diss., 2004"]},{"key":"dc:title","label":"Title","values":["Mechanische Thromboseprophylaxe bei Hüft-Endoprothesen : prospektive Studie zum Einsatz des Venaflow-Gerätes"]}]}],"canonical_facts":{"dc:contributor":["Niethard, Fritz Uwe"],"dc:coverage":["DE"],"dc:creator":["de Boer, Lucas Peter"],"dc:date":["2004"],"dc:description":["Background: Patient receiving a total hip replacement, have higher risk for thromboembolic complications. Using current regimes of prophylaxis the probability for a deep vein thrombosis (dvt) amount to 3-15%. In this prospective, randomised study we explore the benefit of the additional use of a venous calf pump (Venaflow). Methods From November 1998 until December 1999 145 patients were admitted for elective total hip replacement to the clinic for orthopaedic surgery at the university of Aachen. All patients received Low molecular weight heparin (LMWH; Fragmin), wore antithrombotic stockings and were mobilised the first day after operation. After theatre n=39 patients received the Venaflow for 3 days, further n=57 patients were followed up in the control- group. Every day during the doctor's round clinical signs for dvt were examinated. In case of thrombotic sign a venography was arranged. N=52 patients were routinely examinated by duplex-sonography (26 from the Venaflow-group and 26 from the control-group) 9 days after surgery. Also 6 weeks after surgery all patients were asked for thromboembolic complications. All patients in the Venaflow-group received a questionnaire about comfort and handling. Results: Because of excluding criterions or rejection of participation n=49 patients did not take part in the study. N=8 cases with clinical sign lead to a negative venography. In the sonography n=3 dvt without any clinical signs were found, two (7,7%) of those in the Venaflow-group, one (3,8%)in the other group. No statistically test were made because not every patient was examinated by sonography. There was no pulmonary embolism. There was no clinical thromboembolic incidence reported 6 weeks after surgery. The questionnaire that was given to all patients of the Venaflow-group, was completed by n=23 (88,5%). The contentedness was moderate. N=8 (40 %) patients describe it as comfortable or inconspicuous, n=11 (55%) as light bothering or bothering. One Patient was disturbed and finished the treatment by himself. In comparison to the heparin injections it was described as more comfortable anyhow. The sleep was only little more disturbed, than anyhow after such an operation. Conclusion: Altogether a definite statement about the worth of this combined prophylaxis with intermittent pneumatic compression and LMWH cannot be given. The contentedness was moderate, what if used routinely will probable reduce the compliance, when using it in combination with LMWH. Larger prospective, clinical studies are required but they will also get problems, which will cut down the significance."],"dc:identifier":["https://publications.rwth-aachen.de/record/59706","https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-121467%22"],"dc:language":["ger"],"dc:publisher":["Publikationsserver der RWTH Aachen University"],"dc:relation":["info:eu-repo/semantics/altIdentifier/urn/urn:nbn:de:hbz:82-opus-9717"],"dc:rights":["info:eu-repo/semantics/openAccess"],"dc:source":["Aachen : Publikationsserver der RWTH Aachen University 87 S. : graph. Darst. (2004). = Aachen, Techn. Hochsch., Diss., 2004"],"dc:subject":["info:eu-repo/classification/ddc/610","Medizin","IPK","Thromboseprophylaxe","Venaflow"],"dc:title":["Mechanische Thromboseprophylaxe bei Hüft-Endoprothesen : prospektive Studie zum Einsatz des Venaflow-Gerätes"],"dc:type":["info:eu-repo/semantics/doctoralThesis","info:eu-repo/semantics/publishedVersion"]},"updated_at":"2026-07-30T19:42:48Z"}