The Experts below are selected from a list of 114102 Experts worldwide ranked by ideXlab platform
Johanna L Bosch - One of the best experts on this subject based on the ideXlab platform.
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prediction of 30 day mortality after endovascular repair or Open Surgery in patients with ruptured abdominal aortic aneurysms
Journal of Vascular Surgery, 2009Co-Authors: Jacob Visser, Johanna L Bosch, Martine Williams, Jur KievitAbstract:Objective: To validate the Glasgow Aneurysm Score (GAS) in patients with ruptured abdominal aortic aneurysms (AAAs) treated with endovascular repair or Open Surgery and to update the GAS so that it predicts 30-day mortality for patients with ruptured AAA treated with endovascular repair or Open Surgery. Methods: In a multicenter prospective observational study, 233 consecutive patients with ruptured AAAs were evaluated; 32 patients did not survive to repair and statistical analysis was performed using collected data on 201 patients. All patients who were treated with endovascular repair (n = 58) or Open Surgery (n = 143) were included. The GAS was calculated for each patient. The area under the receiver operating characteristics curve (AUC) was used to indicate discriminative ability. We tested for interactions between risk factors and the procedure performed. The GAS was updated to predict 30-day mortality after endovascular repair or Open Surgery in patients with ruptured AAAs using logistic regression analysis. Results: Thirty-day mortality was 15/58 (26%) for patients treated with endovascular repair and 57/143 (40%) for patients treated with Open Surgery (P = .06). The AUC for GAS was 0.69. No relevant interactions were found. The updated prediction rule (AUC = 0.70) can be calculated with the following formula: + 7 for Open Surgery + age in years + 17 for shock + 7 for myocardial disease + 10 for cerebrovascular disease + 14 for renal insufficiency. Conclusion: We showed limited discriminative ability of the GAS and therefore updated the GAS by adding the type of procedure performed. This updated prediction rule predicts 30-day mortality for patients with ruptured AAAs treated with endovascular repair or Open Surgery.
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ruptured abdominal aortic aneurysms endovascular repair versus Open Surgery systematic review
Radiology, 2007Co-Authors: Jacob Visser, Marc R H M Van Sambeek, Taye H Hamza, M Myriam G Hunink, Johanna L BoschAbstract:Purpose: To perform a systematic review of studies in which endovascular repair was compared with Open Surgery in the treatment of patients with a ruptured abdominal aortic aneurysm (AAA). Materials and Methods: A search of the English-language literature from January 1994 until March 2006 was performed. Inclusion criteria for studies were that they were about a comparison between patients who underwent endovascular repair and patients who underwent Open Surgery, that each treatment group included at least five patients, that information about patients' hemodynamic condition at presentation was reported, and that 30-day mortality was reported for each treatment group. Two reviewers independently extracted the data, and discrepancies were resolved by an arbiter. Random-effects models and meta-regression analysis were used to calculate crude and adjusted odds ratios (ORs) for endovascular repair versus Open Surgery. Results: Ten studies, in which the results of 478 procedures (n = 148 for endovascular repai...
Patrick M.m. Bossuyt - One of the best experts on this subject based on the ideXlab platform.
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An economic evaluation of laparoscopy and Open Surgery in the treatment of tubal pregnancy
Acta obstetricia et gynecologica Scandinavica, 1997Co-Authors: Ben Willem J. Mol, Petra J. Hajenius, Simone Engelsbel, Willem M. Ankum, Fulco Van Der Veen, Douwe J. Hemrika, Patrick M.m. BossuytAbstract:Background. Laparoscopy has generally replaced Open Surgery in the treatment of ectopic pregnancy. This study assesses the impact of the introduction of laparoscopy in the surgical treatment of tubal pregnancy on costs.Methods. Consecutive patients undergoing primary Surgery for tubal pregnancy between January 1992 and December 1995 were included in the study. Surgery was performed laparo-scopically or by Open Surgery. Cost for each treatment was calculated by multiplying resources used with calculated resource unit prices. The analysis was stratified for radical and conservative Surgery.Results. Data of 255 patients were analysed. Tubal pregnancy was successfully treated in all patients. Costs per patient were US$ 3,490 for radical Open Surgery, US$ 1,872 for radical laparoscopic Surgery, US$ 3,420 for conservative Open Surgery and US$ 2,125 for conservative laparoscopic Surgery. Differences in costs were caused by a decreased duration of hospital stay after laparoscopy, and, in case of conservative surg...
Ben Willem J. Mol - One of the best experts on this subject based on the ideXlab platform.
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An economic evaluation of laparoscopy and Open Surgery in the treatment of tubal pregnancy
Acta obstetricia et gynecologica Scandinavica, 1997Co-Authors: Ben Willem J. Mol, Petra J. Hajenius, Simone Engelsbel, Willem M. Ankum, Fulco Van Der Veen, Douwe J. Hemrika, Patrick M.m. BossuytAbstract:Background. Laparoscopy has generally replaced Open Surgery in the treatment of ectopic pregnancy. This study assesses the impact of the introduction of laparoscopy in the surgical treatment of tubal pregnancy on costs.Methods. Consecutive patients undergoing primary Surgery for tubal pregnancy between January 1992 and December 1995 were included in the study. Surgery was performed laparo-scopically or by Open Surgery. Cost for each treatment was calculated by multiplying resources used with calculated resource unit prices. The analysis was stratified for radical and conservative Surgery.Results. Data of 255 patients were analysed. Tubal pregnancy was successfully treated in all patients. Costs per patient were US$ 3,490 for radical Open Surgery, US$ 1,872 for radical laparoscopic Surgery, US$ 3,420 for conservative Open Surgery and US$ 2,125 for conservative laparoscopic Surgery. Differences in costs were caused by a decreased duration of hospital stay after laparoscopy, and, in case of conservative surg...
Shigenao Kan - One of the best experts on this subject based on the ideXlab platform.
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Comparative study of thyroidectomies. Endoscopic Surgery versus conventional Open Surgery.
Surgical endoscopy, 2002Co-Authors: Y Ikeda, Hiroshi Takami, Yuzo Sasaki, Junichi Takayama, Masanori Niimi, Shigenao KanAbstract:Background: We have performed endoscopic thyroidectomy by an anterior chest approach and by an axillary approach. In this study, we evaluate the efficacy of these two types of endoscopic procedures and conventional Open Surgery. Methods: Each procedure was performed in 15 patients. The degree of surgical invasiveness and the nature of patients' complaints after Surgery were compared using results of the operation and a questionnaire. Results: Although the mean operating time for the endoscopic procedure was significantly longer than for Open Surgery, there was no postoperative pain difference in the three groups. Three months after Surgery, the incidence of swallowing discomfort was higher in the Open Surgery group than in endoscopic Surgery group. All of the patients treated using the axillary approach were satisfied with the cosmetic results. However, three patients (20%) treated using the anterior chest approach and 11 patients (73%; p < 0.01) who underwent Open Surgery complained about the cosmetic results. Conclusions: The incidence of postoperative complaints after endoscopic Surgery is significantly lower than after Open Surgery. Patients treated using the axillary approach can obtain cosmetic results superior to those achieved with other procedures.
Jacob Visser - One of the best experts on this subject based on the ideXlab platform.
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prediction of 30 day mortality after endovascular repair or Open Surgery in patients with ruptured abdominal aortic aneurysms
Journal of Vascular Surgery, 2009Co-Authors: Jacob Visser, Johanna L Bosch, Martine Williams, Jur KievitAbstract:Objective: To validate the Glasgow Aneurysm Score (GAS) in patients with ruptured abdominal aortic aneurysms (AAAs) treated with endovascular repair or Open Surgery and to update the GAS so that it predicts 30-day mortality for patients with ruptured AAA treated with endovascular repair or Open Surgery. Methods: In a multicenter prospective observational study, 233 consecutive patients with ruptured AAAs were evaluated; 32 patients did not survive to repair and statistical analysis was performed using collected data on 201 patients. All patients who were treated with endovascular repair (n = 58) or Open Surgery (n = 143) were included. The GAS was calculated for each patient. The area under the receiver operating characteristics curve (AUC) was used to indicate discriminative ability. We tested for interactions between risk factors and the procedure performed. The GAS was updated to predict 30-day mortality after endovascular repair or Open Surgery in patients with ruptured AAAs using logistic regression analysis. Results: Thirty-day mortality was 15/58 (26%) for patients treated with endovascular repair and 57/143 (40%) for patients treated with Open Surgery (P = .06). The AUC for GAS was 0.69. No relevant interactions were found. The updated prediction rule (AUC = 0.70) can be calculated with the following formula: + 7 for Open Surgery + age in years + 17 for shock + 7 for myocardial disease + 10 for cerebrovascular disease + 14 for renal insufficiency. Conclusion: We showed limited discriminative ability of the GAS and therefore updated the GAS by adding the type of procedure performed. This updated prediction rule predicts 30-day mortality for patients with ruptured AAAs treated with endovascular repair or Open Surgery.
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ruptured abdominal aortic aneurysms endovascular repair versus Open Surgery systematic review
Radiology, 2007Co-Authors: Jacob Visser, Marc R H M Van Sambeek, Taye H Hamza, M Myriam G Hunink, Johanna L BoschAbstract:Purpose: To perform a systematic review of studies in which endovascular repair was compared with Open Surgery in the treatment of patients with a ruptured abdominal aortic aneurysm (AAA). Materials and Methods: A search of the English-language literature from January 1994 until March 2006 was performed. Inclusion criteria for studies were that they were about a comparison between patients who underwent endovascular repair and patients who underwent Open Surgery, that each treatment group included at least five patients, that information about patients' hemodynamic condition at presentation was reported, and that 30-day mortality was reported for each treatment group. Two reviewers independently extracted the data, and discrepancies were resolved by an arbiter. Random-effects models and meta-regression analysis were used to calculate crude and adjusted odds ratios (ORs) for endovascular repair versus Open Surgery. Results: Ten studies, in which the results of 478 procedures (n = 148 for endovascular repai...
