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Cancer 1999 Mar 1;85(5):1077-83 
<b>Leiomyosarcoma of the inferior vena cava: prognosis and comparison with leiomyosarcoma of other anatomic sites. </b>
Hines OJ, Nelson S, Quinones-Baldrich WJ, Eilber FR. Department of Surgery, University of California-Los Angeles School of Medicine, 90095, USA. 

BACKGROUND: Leiomyosarcoma of the inferior vena cava (IVC) is an uncommon tumor that many believe portends a poor prognosis compared with leiomyosarcoma with similar histology at other anatomic sites. Because of the limited international experience with this disease, the optimal management of these patients is unknown. METHODS: From October 1978 to January 1997,14 patients with leiomyosarcoma of the IVC were treated at the University of California-Los Angeles Medical Center. Wide resection was attempted in all patients. The characteristics of each patient were documented and compared with those of patients with leiomyosarcoma of the stomach (n = 13), small intestine (n = 18), retroperitoneum (n = 19), and uterus (n = 10) who were treated during the same time period. 
RESULTS: Age, gender, tumor size, tumor grade, and lymph node status did not impact survival of patients with leiomyosarcoma of the IVC. Patients with positive surgical margins fared significantly worse (P < 0.03) compared with those who underwent complete resection. Radiation therapy diminished local recurrence and may improve median survival (6 months [n = 2] vs. 51 months [n = 12]) in this patient population. Patients who received combined chemotherapy and radiation lived longer than those who did not (P < 0.05). The 5-year cumulative survival rate (Kaplan-Meier method) was 53% for patients with leiomyosarcoma of the IVC, 47% for those with leiomyosarcoma of the stomach, 43% for those with leiomyosarcoma of the small intestine, 56% for those with leiomyosarcoma of the retroperitoneum, and 65% for those with leiomyosarcoma of the uterus. 
CONCLUSIONS: Despite having a tumor that originates from the IVC, patients with this tumor type can enjoy reasonably long term survival. It appears that these patients benefit from radiation therapy to control local disease. Survival of these patients is no worse than of patients with leiomyosarcomatous lesions of other origin. Aggressive surgical management combined with adjuvant therapy offers the best treatment for patients with leiomyosarcoma of the IVC. 
&&url PMID: 10091791 


J Vasc Surg 1998 Jul;28(1):75-81; discussion 82-3 
<b>Prosthetic replacement of the inferior vena cava for malignancy. </b>
Sarkar R, Eilber FR, Gelabert HA, Quinones-Baldrich WJ. Section of Vascular Surgery, University of California Medical Center, Los Angeles, USA. 

PURPOSE: Invasion of the inferior vena cava (IVC) by tumor is generally considered a criterion of unresectability. This study was designed to review the outcomes of a strategy of aggressive resection of the vena cava to achieve complete tumor resection coupled with prosthetic graft placement to re-establish caval flow. 
METHODS: Retrospective review of patients treated at a university referral center. Ten patients (mean age 54; eight females, two males) underwent tumor resection that involved circumferential resection of the IVC and immediate prosthetic replacement with ringed polytetrafluoroethylene (PTFE) grafts ranging in diameter from 12 to 16 mm.  RESULTS: Seven patients had replacement of the infrarenal IVC, two of their suprarenal IVC, and one had reconstruction of the IVC bifurcation. Four of the 10 patients received preoperative chemotherapy, and none received radiotherapy. The most common (7/10) pathologic diagnosis was leiomyosarcoma arising from the IVC or retroperitoneum. Additional diagnoses included teratoma (one), renal cell carcinoma (one), and adrenal lymphoma (one). There were no perioperative deaths, and one complication (prolonged ileus) occurred. Mean length of stay was 8.1 days. Anticoagulation was not routinely used intraoperatively or postoperatively. Follow-up (mean duration = 19 months) demonstrated that survival was 80% (8/10) and 88% (7/8) of patients were free of venous obstructive symptoms. 
CONCLUSION: Resection of the IVC with prosthetic reconstruction allows for complete tumor resection and provides durable relief from symptoms of venous obstruction. 
&&url PMID: 9685133


Anticancer Res 1996 Sep-Oct;16(5B):3201-5 
<b>International registry of inferior vena cava leiomyosarcoma: analysis of a world series on 218 patients. </b>
Mingoli A, Cavallaro A, Sapienza P, Di Marzo L, Feldhaus RJ, Cavallari N. 
1st Department of Surgery, La Sapienza University, Rome, Italy. 

In 1992 The International Registry of Inferior Vena Cava (IVC) Leiomyosarcomas was established to study the pathogenesis and natural history of the tumor and to support the most rational treatment. We collected 218 patients through a literature review and personal communications. We corresponded with several Authors to obtain up-to-date follow-up and any other data lacking at the initial review. The series was analyzed to identify predictive factors for clinical outcome. Tumors arose from the IVC lower segment in 80 patients, from the middle in 94 and from the upper in 41. A radical tumor resection was undertaken in 134 (61.5%) patients, 26 (11.9%) had a palliative resection and 58 (26.6%) were inoperable. An increased risk of death was associated with upper IVC segment involvement (p < 0.001), lower limb edema (p < 0.001), Budd-Chiari's syndrome (p < 0.001), intraluminal tumor growth (p < 0.001) and IVC occlusion (p < 0.001). Radical tumor resection was associated with better 5- and 10-year survival rates (49.4% and 29.5%). Tumors which arose from the middle segment fared better (56.7% and 47.3%) than those of the lower segment (37.8% and 14.2%) (p < 0.002). No palpable abdominal mass and abdominal pain were associated, in patients radically operated, with a better outcome and longer survival (p < 0.03 and p > 0.04 respectively). Despite the high rate of recurrence, radical tumor resection is the only long-term cure. 
&&url PMID: 8920790 


Surg Today 1998;28(3):359-61
<b>Leiomyosarcoma of the inferior vena cava. Resection and reconstruction of the renal vein using the gonadal vein. </b>
Yamaguchi R, Yamaguchi A, Isogai M, Hori A, Kin Y. Department of Surgery, Ogaki Municipal Hospital, Minaminokawa, Japan. 

We succeeded in surgically resecting a leiomyosarcoma of the inferior vena cava (IVC), which originated at the confluent portion of the right renal vein (RRV), together with the IVC and RRV, and also were able to preserve the right kidney by reconstructing the RRV with end-to-end anastomosis using the right gonadal vein. A good blood flow of the reconstructed RRV was thereafter confirmed by color Doppler ultrasonography, and the renal function was also satisfactory. This new procedure, a reconstruction of the RRV using the gonadal vein, has not been previously reported, but is considered to be an easy and effective method which enables the surgeon to preserve the normal right kidney. 
&&url PMID: 9548329


Thorac Cardiovasc Surg 1997 Feb;45(1):43-5 
<b>Leiomyosarcoma of the inferior vena cava: novel surgical reconstruction preserves renal function. </b>
Babatasi G, Massetti M, Galateau F, Rossi A, Bhoyroo S, Khayat A. 
Department of Thoracic and Cardiovascular Surgery, University Hospital, Caen, France. 

Leiomyosarcoma of the inferior vena cava is rare and to date 145 cases have been reported. Here a new case of primary leiomyosarcoma of the inter-renal vena cava is reported. Surgical treatment consisted of excision of the vena cava on top of the renal arteries allowing radical resection. Reconstruction was original. The distal vena cava was sectioned and ligated just above the bifurcation and the free segment used to replace the excised part. In this the right venal vein was directly implanted. The left renal vein was reimplanted in the translocated segment via a venous (femoral vein) graft. Ligation of the distal vena cava was haemodynamically well-tolerated and the patient was free of symptoms at one year after operation. Control angiogram showed patency of the venous reconstruction. Early diagnosis is essential to improve patient survival, since it allows better radical resection, which is the only way of preventing the development of metastases. 
&&url PMID: 9089976 
