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Ullah A, Yasinzai AQK, Sakhalkar OV, Lee KT, Khan I, Tareen B, Wali A, Waheed A, Khan J, Andam G, Kakar K, Heneidi S, Karki NR. Demographic Patterns and Clinicopathological Analysis of Sarcomatoid Renal Cell Carcinoma in US Population. Clin Genitourin Cancer 2024; 22:38-46. [PMID: 37550179 DOI: 10.1016/j.clgc.2023.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 08/09/2023]
Abstract
BACKGROUND Sarcomatoid renal cell carcinoma (RCC) is defined by the presence of any amount of sarcomatoid components admixed with other RCC histologic subtypes. Our investigation utilizes a large, diverse set of sarcomatoid RCC patients to summarize clinical, demographic, and pathological factors along with demographic disparities that may affect the prognosis and survival of sarcomatoid RCC patients. METHODS The Surveillance, Epidemiology, and End Results (SEER) database was employed to compile data from 2000 to 2018 from 2695 patients diagnosed with sarcomatoid RCC. RESULTS The mean age for sarcomatoid RCC diagnosis is 62.8 years. Males (68.2%) and White patients (82.6%) were more likely to be diagnosed with sarcomatoid RCC. Among the 64.4% of tumors with known size, 35.4% were less than 7 cm, 27.6% were 7.1 to 10 cm, and 36.4% were larger than 10 cm. Among the 95.8% of patients with known stage, 15.3% were localized, 28.9% were regionalized, and 55.8% were found in distant sites. Among the 44.2% of cases with known metastases site, lung was found to be the most common metastatic site.. Surgery was the most common treatment (70.9%). While the overall 5-year survival was 18.1%, it was 27.1% among patients who underwent surgery. Independent risk factors for mortality include age > 60 years, distant stage, and tumor size > 10 cm, per our multivariate analysis. CONCLUSION Sarcomatoid RCC most commonly affects White males in their seventh decade. Increased age, distant stage, and size > 10 cm tumor size have associations with unfavorable prognosis. Surgery is associated with better survival outcomes in localized disease and multimodal therapy (surgery with adjuvant chemoradiation was associated with better survival.).
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Affiliation(s)
- Asad Ullah
- Department of Pathology, Texas Tech University Health Sciences Center, Lubbock, TX.
| | | | | | | | - Imran Khan
- Department of Medicine, Bolan Medical College, Quetta, Balochistan, Pakistan
| | - Bisma Tareen
- Department of Medicine, Bolan Medical College, Quetta, Balochistan, Pakistan
| | - Agha Wali
- Department of Medicine, Bolan Medical College, Quetta, Balochistan, Pakistan
| | - Abdul Waheed
- Department of Surgery, San Joaquin General Hospital, French Camp, CA
| | - Jaffar Khan
- Department of Pathology, Indiana University School of Medicine, Indianapolis, IN
| | - Gul Andam
- Department of Medicine, Bolan Medical College, Quetta, Balochistan, Pakistan
| | - Kaleemullah Kakar
- Department of Medicine, Bolan Medical College, Quetta, Balochistan, Pakistan
| | - Saleh Heneidi
- Department of Pathology, Cedars Sinai Medical Center, Los Angeles, CA
| | - Nabin R Karki
- Department of Medical Oncology, Mitchell Cancer Institute, University of South Alabama, Mobile, AL
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Almatari AL, Sathe A, Wideman L, Dewan CA, Vaughan JP, Bennie IC, Buscarini M. Renal cell carcinoma with tumor thrombus: A review of relevant anatomy and surgical techniques for the general urologist. Urol Oncol 2023; 41:153-165. [PMID: 36804205 DOI: 10.1016/j.urolonc.2022.11.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 11/21/2022] [Accepted: 11/27/2022] [Indexed: 02/19/2023]
Abstract
Renal cell carcinoma (RCC) is estimated to account for 4.1% of all new cancer diagnoses and 2.4% of all cancer deaths in 2020 according to the National Cancer Institute SEER database. This will likely total 73,000 new cases and 15,000 deaths. RCC is one of the most lethal of the common cancers urologists will encounter with a 5-year relative survival of 75.2%. Renal cell carcinoma is one of a small subset of malignancies that are associated with tumor thrombus formation, which is tumor extension into a blood vessel. An estimated 4% to 10% of patients with RCC will have some degree of tumor thrombus extending into the renal vein or inferior vena cava at the time of diagnosis. Tumor thrombi change the staging of RCC and therefore are an important part of initial patient workup. It is known that such tumors are more aggressive with higher Fuhrman grades, N+ or M+ at time of surgery and have higher probability of recurrence with lower cancer-specific survival. Aggressive surgical intervention with radical nephrectomy and thrombectomy can be performed with survival benefits. Classifying the level of the tumor thrombus becomes vitally important in surgical planning as it will dictate the surgical approach. Level 0 thrombi may be amenable to simple renal vein ligation while level 4 can require thoracotomy and possible open-heart surgery with coordination of many surgical teams. Here we will review the anatomy associated with each level of tumor thrombus and attempt to construct an outline for surgical techniques that may be used. We aim to give a concise overview so that general urologists may use it to understand these potentially complicated cases.
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Affiliation(s)
- Abraham L Almatari
- Department of Urology, The University of Tennessee Health Science Center, Memphis, TN
| | - Aditya Sathe
- Department of Urology, The University of Tennessee Health Science Center, Memphis, TN
| | - Lauren Wideman
- Department of Urology, The University of Tennessee Health Science Center, Memphis, TN
| | - Christian A Dewan
- Department of Urology, The University of Tennessee Health Science Center, Memphis, TN
| | - Joseph P Vaughan
- Department of Urology, The University of Tennessee Health Science Center, Memphis, TN
| | - Ian C Bennie
- Department of Urology, The University of Tennessee Health Science Center, Memphis, TN
| | - Maurizio Buscarini
- Department of Urology, The University of Tennessee Health Science Center, Memphis, TN.
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Shang B, Guo L, Shen R, Cao C, Xie R, Jiang W, Wen L, Bi X, Shi H, Zheng S, Li C, Ma J, Zhang K, Feng L, Shou J. Prognostic Significance of NLR About NETosis and Lymphocytes Perturbations in Localized Renal Cell Carcinoma With Tumor Thrombus. Front Oncol 2021; 11:771545. [PMID: 34993135 PMCID: PMC8724023 DOI: 10.3389/fonc.2021.771545] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/25/2021] [Indexed: 01/21/2023] Open
Abstract
BackgroundNon-metastatic renal cell carcinoma (RCC) with tumor thrombus showed a greater tendency for developing metastases after surgery. Early identification of patients with high risk of poor prognosis is especially important to explore adjuvant treatment of improving outcomes. Neutrophil-to-lymphocyte ratio (NLR) was a systemic inflammation marker and outcome predictor in RCC, reflecting the chaos in systemic immune status in cancer as myeloid cell expansion and lymphatic cell suppression. Neutrophil extracellular traps (NET) formation (NETosis) is the process of neutrophils generating an extracellular DNA net-like structure. NETosis in tumor was demonstrated to conduce to the subsequent metastases of tumor. However, the role of NLR for systemic immune status and tumor local immune infiltration, especially for neutrophil-associated NETs, in non-metastatic RCC with thrombus remains unclear.Patients and MethodsIn our clinical cohort, we enrolled the clinical, pathologic, and preoperative laboratory parameters of 214 RCC patients with tumor thrombus who were treated surgically. The clinical endpoint was defined as cancer-specific survival (CSS). In our basic research cohort, RNA-seq, TCR-seq, and scRNA-seq data were analyzed. Patients who reached the endpoint as recurrence-free survival (RFS) were defined as the “High-risk” group. Otherwise, they were separated into the “Low-risk” group.ResultsIn the clinical cohort, NLR≥4 was an independent risk factor for 203 localized RCC with tumor thrombus. In the basic research cohort, tumor thrombi were separated into NETosis-thrombi belonging to the “High-risk” group and non-NETosis-thrombi to the “Low-risk” group. NETs induced by tumor-derived G-CSF in tumor thrombus has a mechanistic role in unfavorable prognosis. Besides, NETs-score from single sample GSEA (ssGSEA) algorithm was an independent prognostic factor validated in the TCGA data. Apart from the neutrophils-associated NETosis, systemic immune perturbations of lymphocytes occurred in the “High-risk” group, represented with decreased TCR diversity and increasingly high proportion of CD4-positive effector memory T (Tem) cells, which indirectly represented the state of lymphopenia.ConclusionsOur findings firstly demonstrated that neutrophils-associated NETosis and systemic lymphocytes perturbations were considered as tumor progression in patients of localized RCC with tumor thrombus, which reflected NLR≥4 as an independent risk factor for patients.
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Affiliation(s)
- Bingqing Shang
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Liping Guo
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Rongfang Shen
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chuanzhen Cao
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ruiyang Xie
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Weixing Jiang
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Li Wen
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xingang Bi
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongzhe Shi
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shan Zheng
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Changling Li
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianhui Ma
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kaitai Zhang
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Kaitai Zhang, ; Lin Feng, ; Jianzhong Shou,
| | - Lin Feng
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Kaitai Zhang, ; Lin Feng, ; Jianzhong Shou,
| | - Jianzhong Shou
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Kaitai Zhang, ; Lin Feng, ; Jianzhong Shou,
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Sakuraoka Y, Kubota K, Tanaka G, Shimizu T, Tago K, Park KH, Matsumoto T, Shiraki T, Mori S, Iso Y, Aoki T. Is left-sided involvement of hepatocellular carcinoma an important preoperative predictive factor of poor outcome? World J Surg Oncol 2020; 18:317. [PMID: 33272298 PMCID: PMC7716469 DOI: 10.1186/s12957-020-02100-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 11/27/2020] [Indexed: 12/11/2022] Open
Abstract
Background The tumor location is the most simple clinical factor and important in liver surgery to make surgical procedure. However, no previous study has investigated the prognostic differences and clinical features of hepatocellular carcinoma showing specific laterality. This study is the first report to focus on the laterality and aimed to lead to more simple and useful predictive factor rather than recent complicated predictive models. Methods Patients who underwent liver resection for the first time for single tumors located within each lobe between 2000 and 2018 were enrolled. We divided them into two groups based on tumor location: a right-sided group and a left-sided group. Univariable and multivariable analyses were performed to assess survival differences in relation to several other factors. Results There were 595 eligible patients; the 5-year survival rates and disease-free survival rates were 49.5% and 19.1% in the left-sided group and 55.6% and 24.5% in the right-sided group, respectively (p = 0.026). Statistical analyses revealed that the following preoperative prognostic factors were independently significant (p < 0.05) in the left-sided group: indocyanine green retention rate at 15 min, alpha fetoprotein, protein induced by vitamin K absence or antagonists-II level, and larger tumor size. Conclusion The left-sided group had a poorer prognosis than the right-sided group. A left-sided tumor location is a significant preoperative factor predictive of poor outcome in patients with hepatocellular carcinoma.
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Affiliation(s)
- Yuhki Sakuraoka
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan.
| | - Keiichi Kubota
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan
| | - Genki Tanaka
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan
| | - Takayuki Shimizu
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan
| | - Kazuma Tago
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan
| | - Kyung Hwa Park
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan
| | - Takatsugu Matsumoto
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan
| | - Takayuki Shiraki
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan
| | - Shozo Mori
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan
| | - Yukihiro Iso
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan
| | - Taku Aoki
- Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan
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Tanaka T, Akiyoshi H, Nishida H, Mie K, Lin LS, Iimori Y, Okamoto M. Contrast-enhanced computed tomography findings of canine primary renal tumors including renal cell carcinoma, lymphoma, and hemangiosarcoma. PLoS One 2019; 14:e0225211. [PMID: 31756212 PMCID: PMC6874336 DOI: 10.1371/journal.pone.0225211] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 10/30/2019] [Indexed: 12/02/2022] Open
Abstract
In veterinary medicine, abdominal ultrasonography is used to rank the differential diagnosis of renal lesions. However, a conventional sonographic examination may show nonspecific findings. The purpose of this study was to assess the computed tomography (CT) findings of canine renal tumors, including renal cell carcinoma (RCC), lymphoma, and hemangiosarcoma (HSA). In this retrospective study, the following CT parameters were recorded for each dog: 1) extent of renal involvement of tumors, 2) enhancement pattern, 3) number of renal tumors, 4) renal tumor vessel enhancement in the corticomedullary phase, 5) presence of lymphadenopathy and lung metastasis, and 6) attenuation values of the renal tumors on the pre- and post-contrast corticomedullary, nephrographic, and excretory phase images. Fifteen dogs met the inclusion criteria, of which nine had RCCs, four had lymphomas, and two had HSAs. RCCs tended to show heterogeneous enhancement and unilateral renal involvement, and vessel enhancement was detected in the corticomedullary phase in dogs with RCC. Conversely, renal lymphomas showed homogeneous enhancement, bilateral renal involvement, and multiple masses; in these dogs, no vessel enhancement was detected in the corticomedullary phase, and the incidence of lymphadenopathy was low. However, in dogs with lymphadenopathy, the renal lymphoma was associated with regionally severe lymphadenopathy. Finally, renal HSAs tended to show heterogeneous enhancement with a non-enhanced area and unilateral renal involvement; in these dogs, vessel enhancement was detected in the nephrographic phase, with the enhancement expanding around the vessel. These findings had no significant differences. Further studies with a larger sample size are required to examine the association between CT and histopathological findings.
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Affiliation(s)
- Toshiyuki Tanaka
- Laboratory of Veterinary Surgery, Osaka Prefecture University, Department of Graduate School of Life and Environmental Sciences, Osaka, Japan
- Kinki Animal Medical Training Institute and Veterinary Clinic, Osaka, Japan
| | - Hideo Akiyoshi
- Laboratory of Veterinary Surgery, Osaka Prefecture University, Department of Graduate School of Life and Environmental Sciences, Osaka, Japan
- * E-mail:
| | - Hidetaka Nishida
- Laboratory of Veterinary Surgery, Osaka Prefecture University, Department of Graduate School of Life and Environmental Sciences, Osaka, Japan
| | - Keiichiro Mie
- Laboratory of Veterinary Surgery, Osaka Prefecture University, Department of Graduate School of Life and Environmental Sciences, Osaka, Japan
| | - Lee-Shuan Lin
- Laboratory of Veterinary Diagnostic Imaging, College of Veterinary Medicine, Department of Veterinary Medicine, National Pingtung University of Science and Technology, Neipu, Taiwan
| | - Yasumasa Iimori
- Laboratory of Veterinary Surgery, Osaka Prefecture University, Department of Graduate School of Life and Environmental Sciences, Osaka, Japan
| | - Mari Okamoto
- Laboratory of Veterinary Surgery, Osaka Prefecture University, Department of Graduate School of Life and Environmental Sciences, Osaka, Japan
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Chen M, Xu B, Liu N, Jiang H, Wang Y, Yang Y, Zhang X, Sun C, Liu J, Zhu W, Chen S. Precise control of caval and hepatic vessels: Surgical technique to treat level III caval thrombus concomitant to renal cell carcinoma. Can Urol Assoc J 2015; 9:E808-13. [PMID: 26600890 DOI: 10.5489/cuaj.3074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
INTRODUCTION We investigated the surgical techniques, safety, and prevention of complications of nephrectomy and removal of tumour thrombus for treating level III inferior vena cava (IVC) concomitant to renal cell carcinoma (RCC). We did this by precise controlling IVC and hepatic vessels without a vascular bypass. METHODS In this series, we included 5 patients with level III IVC tumour thrombus below the hepatic vein concomitant to RCC. After precisely controlling the IVC and hepatic vessels, we then removed the thrombus en bloc with the renal vein. Blood loss volume, IVC clamping time, hypotension time, resuscitation, cardiocerebrovascular complications, and postoperative organ dysfunction were observed. RESULTS Surgery was successfully performed without perioperative death. Blood loss volume was 900 to 1500 mL, operation time was 165 to 250 minutes, vascular clamping time was 8 to 12 minutes, and intraoperative hypotension time was 9 to 12 minutes. Serious perioperative complications were not observed. Local recurrence was not observed during the 9 to 24 months of follow-up. One patient exhibited disease-free survival, 3 developed lung or liver metastasis, and 1 died 11 months after surgery. CONCLUSION Precise control of IVC and hepatic pedicle vessels, without vascular bypass, is a safe and effective surgical treatment for level III tumor thrombus below the hepatic vein concomitant to RCC. The procedure was conducted without increased risks of intraoperative hypotensive shock, difficult resuscitation, pulmonary embolism, and multiple organ dysfunctions.
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Affiliation(s)
- Ming Chen
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
| | - Bin Xu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
| | - Ning Liu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
| | - Hua Jiang
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
| | - Yiduo Wang
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
| | - Yu Yang
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
| | - Xiaowen Zhang
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
| | - Chao Sun
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
| | - Jing Liu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
| | - Weidong Zhu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
| | - Shuqiu Chen
- Department of Urology, Affiliated Zhongda Hospital of Southeast University and Urologic Institute of Southeast University, NanJing, China
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Psutka SP, Boorjian SA, Thompson RH, Schmit GD, Schmitz JJ, Bower TC, Stewart SB, Lohse CM, Cheville JC, Leibovich BC. Clinical and radiographic predictors of the need for inferior vena cava resection during nephrectomy for patients with renal cell carcinoma and caval tumour thrombus. BJU Int 2015; 116:388-96. [PMID: 25430786 DOI: 10.1111/bju.13005] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To evaluate the clinical and radiographic predictors of the need for partial or circumferential resection of the inferior vena cava (IVC) requiring complex vascular reconstruction during venous tumour thrombectomy for renal cell carcinoma (RCC). PATIENTS AND METHODS Data were collected on 172 patients with RCC and IVC (levels I-IV) venous tumour thrombus who underwent radical nephrectomy with tumour thrombectomy at the Mayo Clinic between 2000 and 2010. Preoperative imaging was re-reviewed by one of two radiologists blinded to details of the patient's surgical procedure. Univariable and multivariable associations of clinical and radiographic features with IVC resection were evaluated by logistic regression. A secondary analysis was used to assess the ability of the model to predict histological invasion of the IVC by the tumour thrombus. RESULTS Of the 172 patients, 38 (22%) underwent IVC resection procedures during nephrectomy. Optimum radiographic thresholds were determined to predict the need for IVC resection based on preoperative imaging included a renal vein diameter at the renal vein ostium (RVo) of 15.5 mm, maximum anterior-posterior (AP) diameter of the IVC of 34.0 mm and AP and coronal diameters of the IVC at the RVo of 24 and 19 mm, respectively. On multivariable analysis, the presence of a right-sided tumour (odds ratio 3.3; P = 0.017), an AP diameter of the IVC at the RVo of ≥24.0 mm (odds ratio 4.4; P = 0.017), and radiographic identification of complete occlusion of the IVC at the RVo (odds ratio 4.9; P < 0.001) were associated with a significantly increased risk of IVC resection. The c-index for the model was 0.81. CONCLUSIONS We present a multivariable model of the radiographic features associated with the need for IVC resection during tumour thrombectomy. Pending external validation, this model may be used for preoperative planning, patient counselling and planned involvement of vascular surgical colleagues in anticipation of the need for complex vascular repair.
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Affiliation(s)
| | | | | | - Grant D Schmit
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | - John J Schmitz
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | | | | | - Christine M Lohse
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
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Ihaddadene R, Yokom DW, Le Gal G, Moretto P, Canil CM, Delluc A, Reaume N, Carrier M. The risk of venous thromboembolism in renal cell carcinoma patients with residual tumor thrombus. J Thromb Haemost 2014; 12:855-9. [PMID: 24702743 DOI: 10.1111/jth.12580] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND The clinical importance of tumor thrombus in patients with renal cell carcinoma is unknown. We sought to determine the long-term risk of venous thromboembolism (VTE) in patients with residual tumor thrombus postextraction, and to evaluate the impact of residual tumor thrombus on overall survival. PATIENTS/METHODS A cohort study of patients with stage III-IV renal cell carcinoma undergoing nephrectomy was undertaken. The primary endpoint was the risk of VTE during a 2-year follow-up period. The secondary endpoint was 2-year overall survival. RESULTS A total of 170 surgical renal cell carcinoma patients were included, 97 (57.1%) of whom had tumor thrombus. Patients with residual tumor thrombus following surgery had a higher risk of developing VTE than those with complete tumor thrombus resection (hazard ratio [HR] 8.7, 95% confidence interval [CI] 1.7-43.4) and no tumor thrombus (HR 6.5, 95% CI 1.7-24.7). Patient with residual tumor thrombus did not have worse overall survival than those with tumor thrombus completely resected or those without tumor thrombus. CONCLUSIONS The presence of residual tumor thrombus is an important risk factor for VTE among renal cell carcinoma patients.
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Affiliation(s)
- R Ihaddadene
- Department of Medicine, The Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
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