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Berchiolli R, Tomei F, Marconi M, Mocellin DM, Morganti R, Mari M, Adami D, Ferrari M. Hand-assisted laparoscopic surgery versus endovascular repair in abdominal aortic aneurysm treatment. J Vasc Surg 2019; 70:478-484. [PMID: 30718111 DOI: 10.1016/j.jvs.2018.11.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 11/05/2018] [Indexed: 11/20/2022]
Abstract
OBJECTIVE Hand-assisted laparoscopic surgery (HALS) for the treatment of abdominal aortic aneurysm (AAA) has shown promising initial results compared with traditional surgery, but its efficacy remains highly debated. The aim of this monocentric, retrospective study was to investigate differences in morbidity, mortality, and reintervention rates between endovascular aneurysm repair (EVAR) and HALS, in the medium- and long-term follow-up in a highly selected population. METHODS We treated 977 patients consecutively for nonurgent AAA from January 2006 to December 2013; among them, 615 (62.9%) underwent open surgery, 173 (17.7%) HALS, and 189 (19.3%) EVAR. For this study, only patients treated with HALS or EVAR were considered. A subsequent selection process was carried out to identify the patients with clinical characteristics and aneurysm morphology amenable to either of these treatments. The final study cohort included 229 patients; 92 (40.2%) underwent HALS and 137 (69.8%) received EVAR. The two populations were homogeneous for clinical and demographic characteristics. RESULTS The mean duration of follow-up was 57 ± 28 months (50 ± 24 months in the EVAR group and 67 ± 29 months in the HALS group; range, 2-110 months). No deaths and no statistically significant differences in severe complications or reinterventions were observed over the perioperative period (30 days). Length of stay was significantly shorter after EVAR, because the need for and length of stay in the intensive care unit were decreased. Three postoperative deaths (in-hospital mortality >30 days: HALS, 2.2%; EVAR, 0.7%; P = .7268) occurred owing to respiratory failure (two patients, one in each group) and multiorgan failure secondary to a bowel ischemia (one patient in the HALS group). Other deaths in the study population were not related to the procedure. In both groups, the major causes of death were cancer (24 cases [36.9%]), cardiovascular causes unrelated to AAA (16 [24.6%]), and chronic obstructive lung disease (10 [15.4%]). In the long-term follow-up period, there was a difference in the overall survival in favor of HALS when compared with EVAR (P = .011). CONCLUSIONS This retrospective, single-center study shows that, within a population of similar clinical and anatomic characteristics, treatment of AAA with EVAR or HALS does not result in significant differences in early morbidity and mortality. EVAR presents significantly shorter hospital and intensive care unit length of stay, whereas HALS presents a lower aneurysm-related reintervention rate and lower perioperative cost. The strict patient selection in this trial, as is generally the case with AAA treatment, is likely the key to success for both of these techniques.
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Affiliation(s)
| | - Francesca Tomei
- Vascular Surgery Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Michele Marconi
- Vascular Surgery Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy.
| | | | - Riccardo Morganti
- Section of Statistics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Marta Mari
- Vascular Surgery Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Daniele Adami
- Vascular Surgery Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Mauro Ferrari
- Vascular Surgery Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
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Lin JC, Kolvenbach R, Schwierz E, Wassiljew S. Total Laparoscopic Aortofemoral Bypass as a Routine Procedure for the Treatment of Aortoiliac Occlusive Disease. Vascular 2016; 13:80-3. [PMID: 15996361 DOI: 10.1258/rsmvasc.13.2.80] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The purpose of our study was to evaluate whether total laparoscopic aortofemoral bypass can be performed routinely in patients who require surgical intervention for aortoiliac occlusive disease. In a prospective study, 68 consecutive patients underwent total laparoscopic aortofemoral bypass between 2002 and 2004. Among these patients, there were 50 men and 18 women, with a mean age of 68.4 ± 9 years. The mean operating time was 199 minutes, with a mean aortic cross-clamp time of 85.8 minutes. There were five major complications (7.3%). The mean postoperative hospital stay was 6.3 days. Most of the younger patients could be discharged on the third or fourth postoperative day. Our results show that total laparoscopic aortic surgery can be offered as a routine procedure to the majority of patients with long-segment aortoiliac occlusive disease.
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Affiliation(s)
- Judith C Lin
- Department of Vascular Surgery and Endovascular Therapy, Augusta Hospital Duesseldorf, Duesseldorf, Germany
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3
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Rouhani MJ, Thapar A, Maruthappu M, Munster AB, Davies AH, Shalhoub J. Systematic review of perioperative outcomes following laparoscopic abdominal aortic aneurysm repair. Vascular 2014; 23:525-53. [PMID: 25425618 DOI: 10.1177/1708538114561823] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To collate information available in the literature regarding perioperative outcomes following elective laparoscopic abdominal aortic aneurysm repair. MATERIALS AND METHODS Electronic databases were searched and a systematic review was performed. In total, 1256 abstracts were screened, from which 10 studies were included for analysis. Perioperative and technical outcomes were analysed. RESULTS In the totally laparoscopic repair of infra-renal aneurysms (n = 302), 30-day mortality ranged between 0% and 6% and in the laparoscopic-assisted cases (n = 547) ranged between 0% and 7%. Of the former group, 5-30% of cases were converted to open repair, with 6% reintervention rate, whereas there was a 5-10% conversion and 3% reintervention rate in the latter group. CONCLUSIONS The outcomes from selected patients in selected centres demonstrate that elective laparoscopic repair of aortic aneurysms is feasible and comparable in safety to open repair; it remains unclear, however, whether there are substantial advantages of this method compared with open and endovascular repair.
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Affiliation(s)
| | - Ankur Thapar
- Section of Vascular Surgery, Department of Surgery & Cancer, Imperial College London, UK
| | | | - Alex B Munster
- Section of Vascular Surgery, Department of Surgery & Cancer, Imperial College London, UK
| | - Alun H Davies
- Section of Vascular Surgery, Department of Surgery & Cancer, Imperial College London, UK
| | - Joseph Shalhoub
- Section of Vascular Surgery, Department of Surgery & Cancer, Imperial College London, UK
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Cau J, Ricco JB, Corpataux JM. Laparoscopic aortic surgery: Techniques and results. J Vasc Surg 2008; 48:37S-44S; discussion 45S. [DOI: 10.1016/j.jvs.2008.08.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2008] [Revised: 08/05/2008] [Accepted: 08/08/2008] [Indexed: 11/25/2022]
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Nio D, Diks J, Bemelman WA, Wisselink W, Legemate DA. Laparoscopic Vascular Surgery: A Systematic Review. Eur J Vasc Endovasc Surg 2007; 33:263-71. [PMID: 17127084 DOI: 10.1016/j.ejvs.2006.10.004] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2006] [Accepted: 10/02/2006] [Indexed: 01/14/2023]
Abstract
OBJECTIVE The objective of this systematic review is to evaluate the results of clinical studies on laparoscopic surgery for aorto-iliac disease. METHODS A systematic review of the literature from 1966 to September 2006 on laparoscopic and robotic vascular surgery was performed. Only patient series containing more than 5 cases were included. Operative, clamping and anastomosis times, conversion, mortality and morbidity and hospital stay were evaluated. RESULTS Thirty studies were identified. These were all descriptive and included 9 comparative studies. Operative times varied widely, the shortest being for hand-assisted procedures (2.5-4 hours) and the longest for totally laparoscopic procedures (4-6.5 hours). Clamping times were all<1 hour in hand-assisted procedures while in other techniques clamping times from 1-2.5 hours were seen. The conversion rate varied from <5% up to 16% in smaller series. The mortality rate was approximately 5% and frequently caused by cardiac ischemia. A variety of problems ranging from minor local wound problems to cardiopulmonary- and renal insufficiency, bleeding, ureter lesions and graft thrombosis were described. Mean hospital stay for nearly all procedures was <1 week. CONCLUSIONS Experience of laparoscopic surgery for aorto-iliac disease is still limited. Most study results are biased by patient selection. Only a few surgeons have mastered the required surgical technique and more data are needed to asses the clinical potential of this type of surgery, in comparison with the endovascular alternative. For wider implementation simplification of the surgical procedure seems necessary.
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Affiliation(s)
- D Nio
- Department of Surgery, Spaarne Hospital, Hoofddorp, The Netherlands.
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Yoshida K, Ohtake H, Kimura K, Watanabe G. Experimental Study of Aortic Anastomosis Using a Circular Stapling Device in the Porcine Model. Eur J Vasc Endovasc Surg 2006; 31:575-80. [PMID: 16464620 DOI: 10.1016/j.ejvs.2005.12.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2005] [Accepted: 12/07/2005] [Indexed: 10/25/2022]
Abstract
OBJECTIVES The aim of this study was to assess the strength (pressure resistance) and histological findings of aortic anastomoses performed using a circular stapling device. MATERIALS AND METHODS A circular stapling device was used for anastomosing a porcine aorta and a Dacron graft. The maximum pressure resistance of the anastomotic site of a porcine aortic specimen and a Dacron graft was examined (n=10). A porcine aorta with Dacron graft was anastomosed to a beating heart, and pressure overload was induced by adrenaline (n=5). Specimens of the anastomotic sites were harvested after 14 days and examined histologically. RESULTS The maximum pressure resistance of the anastomotic site was 427.3+/-34.4 (375-511) mmHg. No anastomotic sites leaked as a result of pressure overloading at 227.6+/-21.1 (201-260) mmHg. Histologically, good incorporation and cell coverage were observed, and the inner surfaces of the anastomotic sites were smooth and without stenoses. CONCLUSIONS Aortic anastomosis using a circular stapling device is feasible and worthy of further investigation.
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Affiliation(s)
- K Yoshida
- Department of General and Cardiothoracic Surgery, Kanazawa University School of Medicine, Kanazawa, Japan.
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Ferrari M, Adami D, Del Corso A, Berchiolli R, Pietrabissa A, Romagnani F, Mosca F. Laparoscopy-assisted abdominal aortic aneurysm repair: Early and middle-term results of a consecutive series of 122 cases. J Vasc Surg 2006; 43:695-700. [PMID: 16616222 DOI: 10.1016/j.jvs.2005.12.056] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2005] [Accepted: 12/10/2005] [Indexed: 10/24/2022]
Abstract
BACKGROUND Endoaneurysmorrhaphy with intraluminal graft placement, described by Creech, is the gold standard for abdominal aortic aneurysm (AAA) repair. Endovascular aneurysm repair has gained popularity for its minimal invasiveness and satisfying short-term results, but there are still many concerns about the long-term success of the procedure. Since 1998, laparoscopic surgery has been proposed for AAA treatment. The potential benefits of a minimally invasive procedure reproducing the endoaneurysmorrhaphy results over time have been advocated. In our experience, hand-assisted laparoscopic surgery (HALS) has been routinely used for the open-surgery transperitoneal/retroperitoneal approach and for endovascular aneurysm repair. After 4 years, we are able to define the early and middle-term results of such laparoscopic-assisted treatment. METHODS From October 2000 to March 2004, 604 consecutive nonurgent AAAs were treated at our institution. Of these, 122 (20.2%) were treated by HALS. Exclusion criteria for HALS were hostile abdomen (previous major abdominal or aortic surgery), bilateral diffuse common iliac and/or hypogastric aneurysms, massive aortoiliac calcifications, and severe cardiac (ejection fraction <35%) and respiratory (P(O2) <60 mm Hg or carbon dioxide >50 mm Hg) insufficiency. Juxtarenal and proximal iliac aneurysms were not a contraindication, nor was obesity. In all patients, we performed a minilaparotomy (7-8 cm) both for laparoscopic hand-assisted dissection and for endoaneurysmorrhaphy. All perioperative data were prospectively recorded. Follow-up consisted of ultrasonography and clinical evaluation after 6 and 12 months and then every year after surgery. RESULTS The mean laparoscopic and total operative times were respectively 64 +/- 32 minutes and 257 +/- 70 minutes, the mean aortic cross-clamping time was 76 +/- 26 minutes, and the mean autotransfused blood volume was 1136 +/- 711 mL. The overall mortality and morbidity were respectively 0% and 12.2%. Morbidity was surgery related in only two cases (bleeding from an ipogastric artery lesion and a leg graft thrombosis). The mean intensive care unit stay was 14.3 +/- 13 hours. Oral food intake was resumed after 27.4 +/- 15 hours, and patients were discharged after a mean of 4.4 +/- 1.7 days. Operative times were not affected by obesity, suprarenal aortic cross-clamping, or aneurysm size. Both concomitant iliac aneurysms and bifurcated graft implantation (related to longer vascular reconstruction) involved significantly longer operative times. The learning curve of the procedure (comparing the first 30 patients with the last 92 patients) led to significantly shorter endoscopic, cross-clamping, and total operative times (P = .000). The mean follow-up was 28.6 +/- 16 months. Three incisional hernias and one case of bowel occlusion were detected. All these cases (3.4%) required laparoscopic treatment. CONCLUSIONS The HALS technique is a safe and minimally invasive treatment for AAA; it is useful for limiting the need for conventional open surgery and reducing the length of hospital stay. Despite the lack of randomized studies, HALS seems to be associated with a better postoperative course than standard open surgery. HALS can also be considered as an equivalent of a well-established procedure and as a bridge between open and total laparoscopic surgery.
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Olinde AJ, McNeil JW, Sam A, Hebert SA, Frusha JD. Totally laparoscopic aortobifemoral bypass: A review of 22 cases. J Vasc Surg 2005; 42:27-34. [PMID: 16012448 DOI: 10.1016/j.jvs.2005.03.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Laparoscopic aortobifemoral bypass (LABF) has been performed for diffuse aortoiliac occlusive disease in a few large centers. We hypothesize that in selected patients LABF can be performed safely and is a viable, minimally invasive approach to aortoiliac occlusive disease. METHODS We conducted a retrospective review of all individuals undergoing LABF over a 2.5-year period in a community-based vascular surgery practice. RESULTS From January 2002 to August 2004, LABF was performed successfully in 20 of 22 patients. The age of the patients ranged from 49 to 75 years, with 11 male and 11 female subjects. LABF required a median duration of 267 minutes (range, 199 to 365 minutes) to complete. Median aortic cross-clamp time was 89.5 minutes (range, 64 to 14 minutes) with an aortic anastomotic time of 37 minutes (range, 30 to 56 minutes). Blood loss averaged 0.69 +/- 0.081 L. Median intensive care stay was 1 day, and hospital stay was 4 days. The median duration of postoperative intravenous narcotics via patient-controlled analgesia pump was 2 days. No patients received epidural analgesia. Nearly all patients began a liquid diet 1 day and a solid diet 4 days after surgery. Complications occurred early in our experience and included one death secondary to mesenteric infarction possibly caused by excessive visceral traction. There was one pelvic abscess, one ureteral injury, and two limb occlusions necessitating thrombectomy and revision. The last six patients had uneventful operative procedures and recoveries. Of the two LABF failures, one patient required open conversion because of inadequate aortic exposure and the other required a short upper midline incision to complete the aortic anastomosis. Compared with conventional open aortobifemoral bypasses performed concomitantly during this period, selected LABF patients required fewer narcotics, experienced less bowel dysfunction, and were discharged home sooner. CONCLUSIONS Aortobifemoral bypass can be performed through a minimally invasive laparoscopic approach. Although technically demanding with a steep learning curve, experience should reduce the significant complication rate. Compared with a conventional open aortobifemoral bypass, advantages include less pain, minimal postoperative bowel dysfunction, and a shorter hospital stay.
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Nio D, Diks J, Linsen MAM, Cuesta MA, Gracia C, Rauwerda JA, Wisselink W. Robot-assisted Laparoscopic Aortobifemoral Bypass for Aortoiliac Occlusive Disease: Early Clinical Experience. Eur J Vasc Endovasc Surg 2005; 29:586-90. [PMID: 15878533 DOI: 10.1016/j.ejvs.2005.01.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2004] [Accepted: 01/10/2005] [Indexed: 11/24/2022]
Abstract
BACKGROUND Robotic technology may facilitate laparoscopic aortic reconstruction. We present our early clinical experience with laparoscopic aortobifemoral bypass, aided by two different robotic surgical systems. METHODS Between February 2002 and April 2004, we performed eight robot-assisted laparoscopic aorto-bifemoral bypasses for aortoiliac occlusive disease. All patients were male; median age was 55 years (range: 36-64). Dissection was performed laparoscopically and the robotic system was used to construct the aortic anastomosis. RESULTS A robot-assisted anastomosis was successfully performed in seven patients. Median operative time was 405 min (range: 260-589), with a median clamp-time of 111 min (range: 85-205). Median blood loss was 900 ml (range: 200-5800). Median anastomosis time was 74 min (range 40-110). In two patients conversion was necessary, one due to bleeding of an earlier clipped lumbar artery after completion of the anastomosis, the other because of difficulties with the laparoscopic exposure of the aorta. On post-operative day 3 one patient died unexpectedly as a result of a massive myocardial infarction. Median hospital stay was 7.5 days (range: 3-57). CONCLUSION Our initial experience with robotic assisted laparoscopic surgery (RALS) shows it is a feasible technique for aortoiliac bypass surgery. However, laparoscopic aortoiliac surgery demands considerable experience and operative times need to be reduced before this technique can be widely implemented.
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Affiliation(s)
- D Nio
- Department of Surgery, Vrije Universiteit Medical Center, 1007 MB Vrije, The Netherlands
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Javerliat I, Coggia M, Centa ID, Dubosq F, Colacchio G, Leschi JP, Goëau-Brissonnière O. Total Videoscopic Aortic Surgery: Left Retroperitoneoscopic Approach. Eur J Vasc Endovasc Surg 2005; 29:244-6. [PMID: 15694795 DOI: 10.1016/j.ejvs.2004.12.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/01/2004] [Indexed: 11/21/2022]
Affiliation(s)
- I Javerliat
- Department of Vascular Surgery, Ambroise Paré University Hospital, Boulogne-Billancourt, and Faculté de Médecine Paris-Ouest, René Descartes University, Paris, France
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Dion YM, Griselli F, Douville Y, Langis P. Early and Mid-term Results of Totally Laparoscopic Surgery for Aortoiliac Disease. Surg Laparosc Endosc Percutan Tech 2004; 14:328-34. [PMID: 15599296 DOI: 10.1097/01.sle.0000148462.46899.61] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The present article is the first in the literature reporting short- and medium-term results using a totally laparoscopic technique for aortoiliac disease.Forty-nine patients, 6 having an associated small aneurysm, were scheduled for totally laparoscopic surgery (TLS) for aortoiliac occlusive disease and 2 for treatment of aortic aneurysmal disease (AAA). Patients' characteristics, intraoperative, postoperative data and mid-term data were recorded.TLS was successfully completed in 45 patients. Of those patients, 41 received an aortobifemoral bypass; three, an iliofemoral bypass; and one, an aortoaortic bypass. Five patients were converted from TLS to video-assisted laparoscopic surgery using incisions varying in size from 7 cm to 11 cm. One patient underwent conversion to standard open surgery. One death occurred unrelated to the technique. Major perioperative complications related to the technique were few and presented in the early phase of the study: One intraoperative embolization to the lower limbs that needed embolectomy, and one acute aortic false aneurysm. Midterm results were favorable, demonstrating two limb graft thromboses. Hernias at trocar sites occurred in only 3.9%. The patients benefited from this procedure, which is considered definitive like its standard open counterpart. The conversion rate is lower than that reported for acute cholecystitis. Selection of patients has been less stringent during the second half of the study in term of inclusion of patients with AAA and of more TASC IV patients. Surgeons willing to learn this technique should attend dedicated courses. In the future, as this surgical innovation matures, controlled randomized studies should be initiated.
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Affiliation(s)
- Yves-Marie Dion
- Department of Surgery, Centre Hospitalier Universitaire de Québec, Hôpital St-François d'Assise, Québec City, Qc, Canada.
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Kolvenbach R, Schwierz E, Wasilljew S, Miloud A, Puerschel A, Pinter L. Total laparoscopically and robotically assisted aortic aneurysm surgery: a critical evaluation. J Vasc Surg 2004; 39:771-6. [PMID: 15071439 DOI: 10.1016/j.jvs.2003.10.050] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND Laparoscopically assisted aortic aneurysm resection requiring a minilaparotomy can be performed as a routine procedure. It was the purpose of our study to evaluate whether a total laparoscopic operation can be offered to aneurysm patients as a minimally invasive alternative. We also wanted to test whether a master-slave robot could facilitate the total laparoscopic procedure. METHODS A prospective, consecutive number of 50 patients was evaluated. A transperitoneal left retrocolic access was used to expose the aorta. If possible, a tube graft repair was performed. The aortic anastomosis was sutured totally laparoscopically, with the surgeon standing on the right side of the operating table. In 10 consecutive patients, the anastomosis was sutured with the help of the Zeus robot. RESULTS After excluding 3 cases that required suprarenal cross-clamping, 47 patients were operated using a total laparoscopic approach. A totally laparoscopic operation could be performed successfully in 39 patients with aneurysms. In 8 patients (17%), conversion to a laparoscopic hand-assisted operation with a 7-cm minilaparotomy was required. The robot was used to perform the aortic anastomosis in 10 patients. In 8 patients, a tube graft repair could successfully be performed totally laparoscopically. In the remaining patients, a bifurcated graft was implanted laparoscopically. The mean operating time was 227 minutes in the laparoscopy group and was 242 minutes in those patients in whom the anastomosis was sutured with the help of the Zeus Robot. Mean cross-clamping time, +/- SD, was 81.4 + 31 minutes. None of the patients died perioperatively. Major complications occurred in three patients (6.3%). The overall morbidity was 14.8%, including one patient who required temporary hemodialysis postoperatively. The time to suture the aortic anastomosis was significantly shorter in the robotic-assistance group (40.8 +/- 4 minutes), yet total operating time was longer in this group because of the technical complexity of the robotic device. Patients with a total laparoscopic procedure asked for significantly fewer analgesics and could regain full mobility earlier compared with those patients for whom a minilaparotomy after conversion to the laparoscopic hand-assist procedure was required. CONCLUSIONS Total laparoscopic aneurysm resection can be offered to the majority of patients in our institution. The robot still requires further refinements to reduce operating times and the aortic cross-clamping period. We now have the technique and the instrumentation to offer laparoscopic aneurysm surgery as a minimally invasive alternative for patients whose conditions are unsuitable for endovascular aneurysm repair.
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Affiliation(s)
- Ralf Kolvenbach
- Department of Vascular Surgery and Endovascular Therapy, Augusta Hospital Düesseldorf, Germany.
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Turnipseed W, Tefera G, Carr S. Comparison of minimal incision aortic surgery with endovascular aortic repair. Am J Surg 2003; 186:287-91. [PMID: 12946834 DOI: 10.1016/s0002-9610(03)00223-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Enthusiasm for endovascular aortic repair (EVAR) has been tempered by midterm outcomes that raise valid concern about long-term durability. METHODS This article compares outcome data from a prospective nonrandomized comparison of a less-invasive open surgical repair technique-minimal incision aortic surgery (MIAS)-and EVAR. RESULTS MIAS and EVAR had comparable intensive care unit stays (1 day or less), quick return to general dietary feeding (2 days), and comparable hospital length of stay (4.8 days [3.4 days for uncomplicated cases MIAS] and 2.0 days for EVAR). Overall morbidity and mortality for MIAS and EVAR were comparable (18% versus 27%). MIAS was more cost effective than EVAR (net revenue MIAS = +8,445 US dollars, EVAR -7,263 US dollars). CONCLUSIONS MIAS is a safe, cost-effective alternative to endovascular aortic repair.
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Affiliation(s)
- William Turnipseed
- Department of Surgery, University of Wisconsin Hospital, 600 Highland Ave., G5/325, Madison, WI 53792, USA.
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Alimi YS, Di Molfetta L, Hartung O, Dhanis AF, Barthèlemy P, Aissi K, Giorgi R, Juhan C. Laparoscopy-assisted abdominal aortic aneurysm endoaneurysmorraphy: early and mid-term results. J Vasc Surg 2003; 37:744-9. [PMID: 12663972 DOI: 10.1067/mva.2003.162] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVES This study was undertaken to evaluate the consequences on patient selection and on early and mid-term results during the learning curve of a surgical team performing laparoscopy-assisted surgery to treat abdominal aortic aneurysm (AAA). PATIENTS AND METHODS Between December 1998 and January 2002, 24 patients (22 men, 2 women; mean age, 68.2 years [range, 57-82 years]) were included in a prospective study and underwent laparoscopic transperitoneal AAA dissection followed by graft implantation through a 6 to 9 cm minilaparotomy. Perioperative data for the first 10 patients, obtained during the first 25 months of the study (group 1), were compared with data for the last 14 patients, obtained during the last 13 months of the study (group 2). Follow-up consisted of clinical examination or duplex scanning, or both, at 1, 3, 6, and 12 months and yearly thereafter, and computed tomographic scanning before discharge and yearly thereafter. RESULTS One patient (4.3%) died in the immediate postoperative period. In this patient and two others (12.5%), the minilaparotomy was extended intraoperatively, from 12 cm to 16 cm. With experience, initial contraindications such as obesity and short proximal or calcified aortic neck were eliminated, enabling increase in rate of patients included, from 27.7% during the first 25 first months to 56% during the last 13 months (P =.063). Mean duration of operative clamping decreased from 275 minutes in group 1 to 195 minutes in group 2 (P <.0001), and mean duration of aortic clamping decreased from 101 minutes in group 1 to 52 minutes in group 2 (P <.0001). The number of early repeat interventions was reduced from 3 (30%) in group 1 to 2 (14.3%) in group 2 (P =.61), and clinical recovery period decreased from 6.8 days to 4.3 days (P <.005). During mean follow-up of 17.1 months (range, 3-38 months), no late aortoiliac procedures were necessary and no prosthetic abnormality was detected. CONCLUSION This minimally invasive video-assisted technique provides good postoperative comfort and excellent mid-term results. Developments in experience and instrumentation have enabled us to include a growing number of patients and to reduce the duration of the procedure.
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Affiliation(s)
- Yves S Alimi
- Department of Vascular Surgery, Hôpital Nord, Université de la Méditerranée, Marseilles, France.
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Dion YM, De Wailly GW, Thaveau F, Gourdon J. Totally laparoscopic juxtarenal aortic anastomosis: an experimental study. Surg Laparosc Endosc Percutan Tech 2003; 13:111-4. [PMID: 12709617 DOI: 10.1097/00129689-200304000-00010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The surgical management of juxtarenal aneurysms necessitates suprarenal aortic clamping and control of the renal arteries. We attempted to reproduce this procedure laparoscopically. Five female piglets were submitted to a totally laparoscopic approach of the aortoiliac segment. After laparoscopic control of the renal arteries and suprarenal clamping, a 6-mm Dacron tube graft was anastomosed to the juxtarenal aorta. After the procedure, a midline laparotomy allowed verification of the patency of the renal arteries and the quality of the anastomosis. Mean operative time was 198 minutes (range, 170-240 minutes). The dissection took an average of 92 minutes (range, 75-110 minutes). The mean suprarenal aortic cross-clamp time was 46.3 minutes (range, 29.1-81.5 minutes), and the mean anastomotic time was 28.9 minutes (range, 16.5-68.1 minutes). This study demonstrates in this animal model the feasibility of juxtarenal aortic anastomosis using a laparoscopic technique. Newly designed instruments should allow a shorter clamping time in the future.
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Affiliation(s)
- Yves-Marie Dion
- Department of Surgery, Centre Hospitalier Universitaire de Québec, Hôpital Saint-François d'Assise, Canada.
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Sala F, Hassen-Khodja R, Declemy S, Bouillanne PJ, Haudebourg P, Batt M. [Laparoscopic aortoiliac surgery for occlusive disease and or aneurysms]. ANNALES DE CHIRURGIE 2003; 128:4-10. [PMID: 12600322 DOI: 10.1016/s0003-3944(02)00011-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The techniques of video-assisted surgery have been recently applied to aortoiliac surgery. The choices between first the retroperitoneal approach or the transperitoneal approach and the place of video-assisted surgery in relation to totally laparoscopic surgery are at the centre of debates. The aim of this clarification is to relate the evolution of laparoscopic aortoiliac surgery for occlusive disease and aneurysms through a review of the literature on this subject.
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Affiliation(s)
- F Sala
- Service de chirurgie vasculaire, hôpital Saint-Roch, 5, rue Pierre-Dévoluy, BP 1319, 06006 Nice cedex 1, France.
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Matsumoto Y, Nishimori H, Yamada H, Yamamoto A, Okazaki Y, Kusume KI, Hata A, Toshimitsu Y, Yamamoto M, Sasaguri S. Laparoscopy-assisted abdominal aortic aneurysm repair: first case reports from Japan. Circ J 2003; 67:99-101. [PMID: 12520162 DOI: 10.1253/circj.67.99] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Laparoscopy-assisted abdominal aortic aneurysm (AAA) repair consists of retroperitoneal laparoscopic dissection of the AAA and graft replacement performed via a mini-laparotomy. Two patients with infrarenal AAA underwent successful straight graft replacement using this hybrid approach. The retroperitoneal space was bluntly dissected under carbon dioxide pneumoretroperitoneum and further dissection was performed laparoscopically. This enabled proximal and distal control of the aneurysm, and occlusion of the lumbar arteries and the inferior mesenteric artery with hemoclips. A 7 cm mini-laparotomy was sufficient for the straight graft replacement. Laparoscopy-assisted repair is a less invasive technique for the treatment of AAA and can be regarded as the initial step towards totally endoscopic repair.
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Kolvenbach R, Ceshire N, Pinter L, Da Silva L, Deling O, Kasper AS. Laparoscopy-assisted aneurysm resection as a minimal invasive alternative in patients unsuitable for endovascular surgery. J Vasc Surg 2001; 34:216-21. [PMID: 11496271 DOI: 10.1067/mva.2001.116806] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE So far, endovascular surgery has been the only minimal invasive way to treat patients with abdominal aortic aneurysms (AAAs). With hand-assisted laparoscopic surgery (HALS), laparoscopic transperitoneal endoaneurysm repair can be performed through a 6-cm mini-incision only. We wanted to evaluate whether this laparoscopic technique can be offered as a minimal invasive alternative in patients unsuitable for endovascular AAA repair. MATERIAL AND METHODS Forty patients were referred for endovascular AAA repair. Three patients had to be excluded from the study. Endovascular AAA exclusion was finally performed in 13 patients. Laparoscopic AAA resection was performed in 24 patients. Hand-assisted laparoscopic surgery with transperitoneal access and endoaneurysm repair was accomplished in all patients unsuitable for an endovascular procedure. The outcome after endovascular repair was compared with the outcome of patients who underwent laparoscopy. RESULTS In the laparoscopic group, conversion to an open procedure was necessary in one case. One patient in this group died (4.1%) postoperatively. There were four complications in each group. In the endovascular group we had one endoleak type II and one graft thrombosis, which required a reoperation. After endovascular treatment, patients were transferred significantly less frequently to the intensive care unit, and they could resume oral feeding earlier. Mobilization and postoperative hospital stay did not differ significantly between the groups. CONCLUSION Laparoscopic AAA resection with the use of the technique described can be routinely offered to patients unsuitable for endovascular AAA exclusion with excellent long-term results similar to open surgery. A controlled study is clearly indicated to evaluate the role of laparoscopic techniques in aneurysm surgery.
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Affiliation(s)
- R Kolvenbach
- Department of Vascular Surgery, Augusta Hospital, Dusseldorf, Germany.
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Alimi YS, Hartung O, Valerio N, Juhan C. Laparoscopic aortoiliac surgery for aneurysm and occlusive disease: when should a minilaparotomy be performed? J Vasc Surg 2001; 33:469-75. [PMID: 11241114 DOI: 10.1067/mva.2001.111990] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
PURPOSE The purpose of this study was to determine the benefits and the indications of performing a minilaparotomy during laparoscopic abdominal aortoiliac reconstructions. METHODS This prospective study was approved by the Commission Consultative de Protection des Personnes dans la Recherche Biomédicale of the University of Marseilles, and all patients gave their informed consent. Between January 1998 and March 2000, 27 patients (23 men; 4 women) with a mean age of 58.2 years (range, 42-76 years) underwent aortoaortic (n = 3), aortounifemoral (n = 4), or aortobifemoral (n = 20) bypass graft for aortoiliac occlusive disease (n = 20), emboligenic aortitis (n = 1), or abdominal aortic aneurysm (AAA) (n = 6). At the beginning of the trial, the decision was made to perform an intraoperative conversion to open surgery in case of bleeding (group 0), when a totally laparoscopic procedure was possible (group I), or when a 6- to 8-cm supraumbilical minilaparotomy was needed in case of technical difficulty (group II). In each case of AAA, the remaining lumbar arteries were controlled (group III); and for the last six patients of this series (group IV), a minilaparotomy was systematically performed. RESULTS One patient was admitted with multiple organ failure and died on day 12 (3.7%) with a patent graft. One intraoperative conversion to open surgery (3.7%, group 0) was performed for bleeding; recovery was uneventful. Seven postoperative surgical procedures (26%) were necessary, including two cases of aortic bleeding because of hypertensive access. Seven procedures were totally laparoscopic (group I), and a minilaparotomy was performed in the other 19 cases, including seven cases of technical difficulty (group II). The mean operative and clamping times and the mean postoperative hospital stay were globally (P =.021) and individually (P < or =.016) significantly shorter in group IV when compared with those of the other three groups. Twenty patients (74%) had a postoperative hospital stay of 6 days or less (3-6 days), with minimal complaints of pain, tolerance of oral feeding on day 2, and mobilization on day 2 or 3. All bypass grafts remained patent after a mean follow-up of 11 months (1-26 months). CONCLUSION With regard to the instrumentation presently available, this study shows the benefit of a minilaparotomy when performing a laparoscopic aortoaortic or aortofemoral bypass graft for the treatment of aortoiliac occlusive disease and AAA.
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Affiliation(s)
- Y S Alimi
- Department of Vascular Surgery, Hôpital Nord, Université de la Méditerranée, Marseille, France
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Abstract
Abdominal aortic aneurysm (AAA) resection is a major surgical procedure performed frequently. As a minimal access procedure, laparoscopy has been shown in the field of general surgery to improve a patient's postoperative well-being and to shorten hospital stay. The same benefits could be expected from a laparoscopic approach for AAA repair. We report what we believe to be the first totally laparoscopic AAA repair performed according to the principles of endoaneurysmorrhaphy.
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Affiliation(s)
- Y M Dion
- Department of Surgery, Laval University, Québec City, Québec, Canada.
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Alimi YS, Hartung O, Cavalero C, Brunet C, Bonnoit J, Juhan C. Intestinal retractor for transperitoneal laparoscopic aortoiliac reconstruction: experimental study on human cadavers and initial clinical experience. Surg Endosc 2000; 14:915-9. [PMID: 11080403 DOI: 10.1007/s004640000260] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND We set out to design a bowel retractor for use during laparoscopic transperitoneal reconstruction of the infrarenal aorta and of both iliac axes. METHODS This study was performed on five cadavers. After the insertion of four trocars, a pneumoperitoneum was created, and the bowels were gathered to the right flank. On each cadaver, the following four measurements were made: the distance between the Treitz angle and the aortic bifurcation (L1), the distance between the aortic bifurcation and the right internal inguinal ring (L2), the angles between L1 and L2 in the axial plane (A1), and the angles between them in the sagittal (A2) plane. These measurements enabled us to create a bowel retractor. The device was composed of a malleable metallic rod with a 2.5-mm diameter that was fixed to the operating table and whose intraabdominal section was designed to follow the outline of the mesenteric root in addition, a 25 x 12 cm polypropylene net was slipped around the rod. The infrarenal aorta and both iliac axes were then dissected. Secondarily, the bowel retractor was used in eight patients (seven men and one woman; mean age, 56 years; range 44-76) during laparoscopic aortoiliac reconstruction for occlusive (n = 6) or aneurysmal (n = 2) disease. RESULTS The statistical analysis of the measurements performed on cadavers showed a significant correlation between body height and L1 (r = 0.8769; p < 0.05) and L2 (r = 0. 9706; p < 0.01) distances. It was then possible to design the shape of two metallic rods (one small and one large) so that they would be adaptable to the height of the patients (<1.65 m and >1.65 m). During our clinical experience, all laparoscopic procedures were completed in a mean operative and clamping time of 266 min (range, 215-360) and 54 min (range, 18-90), respectively. Mean postoperative hospital stay was 6 days (range, 3-13). CONCLUSION Our experimental study allowed us to develop a bowel retractor that can make it easier to perform laparoscopic transperitoneal aortoiliac reconstruction in humans.
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Affiliation(s)
- Y S Alimi
- Department of Vascular Surgery, Hôpital Universitaire Nord, Chemin des Bourrelly, 13915 Marseille Cedex 20, France
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Castronuovo JJ, James KV, Resnikoff M, McLean ER, Edoga JK. Laparoscopic-assisted abdominal aortic aneurysmectomy. J Vasc Surg 2000; 32:224-33. [PMID: 10917981 DOI: 10.1067/mva.2000.106954] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
PURPOSE The technical elements and early results of laparoscopic-assisted abdominal aortic aneurysmectomy are described. METHODS From February 1997 to May 1999, 60 patients underwent elective laparoscopic surgery for infrarenal abdominal aortic aneurysm. Patients ranged in age from 53 to 87 years (mean age, 70.6 years). The mean aneurysm size was 5.7 cm (range, 4.4-8.0 cm). All patients underwent aortography and computed tomography scanning preoperatively. Patients were not deemed candidates for the procedure when visceral arterial abnormalities requiring surgical treatment were present or an aortic aneurysm neck shorter than 0.5 cm was found. A risk-stratification system was used as a means of quantitating risk factors and excluding high-risk patients. Aortic reconstruction was performed with retroperitoneal laparoscopy, with the patient in a modified right lateral decubitus position. An Endo TA 30 and an Endo TA 60 laparoscopic staplers (US Surgical, Norwalk, Conn) were used in occluding the common iliac arteries and aneurysm sac. Laparoscopic hemoclips were used as a means of occluding the lumbar arteries and other branches of the aneurysm sac. An aortobifemoral or aortobi-iliac bypass grafting procedure was performed by means of the laparoscope to position the graft and visualize the end-to-end aorta-to-graft anastomosis, with distal anastomoses performed through counter incisions. RESULTS Three patients died within 30 days of surgery (mortality rate, 5.0%). Complications included left ureteral injury (1), postoperative myocardial infarction (1), ileofemoral deep venous thrombosis (1), acute renal failure (2), colon ischemia (1), and infected graft limb requiring revision (1). The mean operative time was 7.7 hours, and the mean aortic cross-clamping time was 112 minutes. Compared with a contemporary consecutive series of 100 patients undergoing open transabdominal or retroperitoneal aneurysmectomy performed by the same group of surgeons, the laparoscopic patients had decreased length of stays in the intensive care unit and the hospital, with less need for ventilator support, earlier resumption of a regular diet, and an earlier return to normal activity. At the follow-up examinations, all bypass grafts were patent. CONCLUSION Laparoscopic-assisted aneurysmectomy is safe and effective and can be performed with good results. The longer operation time required is well tolerated in patients who are at good and moderate risk. Prior training in laparoscopic aortic surgery is necessary for surgeons to obtain the required level of expertise needed to perform these procedures. With these caveats, the results of our study suggest that laparoscopic-assisted aortic aneurysmectomy is appropriate for moderate-to-good risk (American Society of Anesthesiologists class of III or lower) operative candidates meeting standard criteria for aneurysm resection in whom preoperative computed tomography scan and biplane arteriography demonstrate a proximal aneurysm neck of 0.5 cm or larger and no need for visceral or internal iliac artery reconstruction. A randomized trial would be required to confirm the benefits of this procedure over open aneurysmectomy.
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Affiliation(s)
- J J Castronuovo
- Department of Surgery, Morristown Memorial Hospital, Morristown, NJ, USA.
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Barbera L, Geier B, Kemen M, Mumme A. Regarding "Laparoscopic aortofemoral bypass grafting: human cadaveric and initial clinical experiences". J Vasc Surg 2000; 31:412-4. [PMID: 10664512 DOI: 10.1016/s0741-5214(00)90176-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Said S. Reply. J Vasc Surg 2000. [DOI: 10.1016/s0741-5214(00)90177-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Alimi YS, Hartung O, Orsoni P, Juhan C. Abdominal aortic laparoscopic surgery: retroperitoneal or transperitoneal approach? Eur J Vasc Endovasc Surg 2000; 19:21-6. [PMID: 10706830 DOI: 10.1053/ejvs.1999.0933] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE to define the respective advantages and pitfalls of the trans- or retroperitoneal approaches in laparoscopic abdominal aortic reconstruction (LAOR). DESIGN prospective study. MATERIAL ten patients (8 males; average age 58) underwent an aortouni- (n=2) or bifemoral bypass (n=8) to treat aortoiliac occlusive disease (n=8) or an aortic aneurysm (n=2). METHODS a retroperitoneal approach (the "apron" technique) was used in the first 5 cases (Group I) and a transperitoneal approach in the last 5 cases (Group II). RESULTS no early or late death occurred, and all bypasses remain patent after a mean follow-up of 5.7 months. Mean surgical and clamping times are similar in both groups (370 and 126 min in Group I; 324 and 137 min in Group II). One intraoperative conversion to open surgery and two postoperative surgical complications occurred in Group I. Four minilaparotomies of 8-10 cm were necessary in Group II. Two patients were discharged on postoperative day 6 in Group I and five in Group II. CONCLUSION this preliminary study shows the feasibility of LAOR through both approaches. In Group II, a better exposure of the right aortic wall and of the right iliac axis was noted and division of the inferior mesenteric artery was not always necessary.
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Affiliation(s)
- Y S Alimi
- Service de Chirurgie Vasculaire - Hôpital Nord, Université de la Méditérranée, Marseille, France
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Barbera L, Ludemann R, Grossefeld M, Welch L, Mumme A, Swanstrom L. Newly designed retraction devices for intestine control during laparoscopic aortic surgery: a comparative study in an animal model. Surg Endosc 2000; 14:63-6. [PMID: 10653239 DOI: 10.1007/s004649900013] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND Recent clinical studies have demonstrated the feasibility of laparoscopic surgery for aortic occlusive and aneurysmal disease. However, transperitoneal aortic access is compromised by poor exposure in the operative field from uncontrolled bowel. The retractors that are currently available are inadequate for this task. The development of new retractors would help to facilitate laparoscopic aortic surgery. METHODS Six female piglets (28-30 kg) in each group underwent laparoscopy with pneumoperitoneum (12 mmHg). Exposure of the infrarenal aorta and cross-clamping were undertaken through a transperitoneal approach. Two paddles inserted in a polyester bilayer (mobile device, group A) or a mesh net fixed to the abdominal wall (fixed device, group B) were used to retain the bowel. Aortotomy and suturing were performed to mimic a vascular procedure. After bleeding was controlled, the intraabdominal pressure (IAP) was lowered to 6 mmHg, and retraction was assessed for 30 min. The main outcome measures were time to deploy the retractors, time to perform the vascular procedure, time to withdraw the devices, and total procedural time. Blood loss and frequency of retraction failure were also recorded. RESULTS Mean time to deploy the device was 22 +/- 12 min in group A and 36 +/- 34 min in group B (n.s.). Vascular surgery time averaged 60 +/- 24 min in group A and 68 +/- 16 min in group B (n.s.). The times to withdraw the nets were 3.6 +/- 1.2 min and 13.5 +/- 8.2 min, respectively (p < 0.05). Total surgery time was 155 +/- 41 min vs 174 +/- 49 min (n.s.). There were six retraction failures, five in group A and one in group B. When lower IAP was used, there was only one failure in each study group. Mean blood loss was <150 ml in both groups. There were no major complications. CONCLUSIONS Both methods provided adequate exposure of the infrarenal aorta. Vascular surgery time and blood loss were similar for both groups. The movable device proved more usable and, at lower IAP, more effective. The results of this study demonstrate effective bowel retraction for laparoscopic aortic surgery.
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Affiliation(s)
- L Barbera
- Department of Surgery, St. Josef Hospital, Ruhr University, Bochum, Germany
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Affiliation(s)
- J J Cerveira
- Department of Surgery, Long Island Jewish Medical Center, New Hyde Park, NY 11042, USA
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