3 results on '"Lam, John S."'
Search Results
2. Prognostic relevance of tumour size in T3a renal cell carcinoma: a multicentre experience.
- Author
-
Lam JS, Klatte T, Patard JJ, Goel RH, Guillè F, Lobel B, Abbou CC, De La Taille A, Tostain J, Cindolo L, Altieri V, Ficarra V, Artibani W, Prayer-Galetti T, Schips L, Zigeuner R, Pantuck AJ, Figlin RA, and Belldegrun AS
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Austria epidemiology, California epidemiology, Carcinoma, Renal Cell classification, Carcinoma, Renal Cell mortality, Child, Female, Follow-Up Studies, France epidemiology, Humans, Italy epidemiology, Kidney Neoplasms classification, Kidney Neoplasms mortality, Male, Middle Aged, Neoplasm Staging, Prognosis, Proportional Hazards Models, Retrospective Studies, Risk Factors, Severity of Illness Index, Survival Rate trends, Time Factors, Carcinoma, Renal Cell pathology, Kidney Neoplasms pathology
- Abstract
Objective: To evaluate the prognostic role of tumour size in pathological stage T3a renal cell carcinoma (RCC) with fat invasion only and to assess whether this subgroup maintains its relevance over the other pathological stages., Methods: We retrospectively studied 2113 patients from eight international institutions who were treated by surgical resection for T2-4 RCC. Disease-specific survival (DSS) was evaluated with univariate and multivariate analyses., Results: Univariate analysis of patients with T3a RCC showed that tumour size was significantly associated with DSS (HR: 1.09, 95% CI: 1.05-1.12, p<0.001). An ideal cut-off of 7 cm for these patients was identified with a scatter plot of Martingale residuals and tumour size. The two T3a groups were distinctly different with respect to clinicopathologic parameters (performance status, metastases, grade, histological subtype) and survival (p<0.001). Median survival time was not reached for patients with T2 and T3a< or =7 cm disease with a 5- and 10-yr DSS rate of 70% and 59% and 63% and 53%, respectively. Median survival time for patients with T3a>7 cm, T3b, T3c, and T4 disease was 54, 46, 21, and 11 mo, respectively, with 5- and 10-yr DSS rates of 46% and 36%, 46% and 36%, 34% and 0%, and 16% and 14%, respectively., Conclusions: Our data indicate that tumour size is an important factor for predicting outcome of patients with T3a RCC with fat invasion only. Our findings should merit consideration during the next revision of the TNM classification.
- Published
- 2007
- Full Text
- View/download PDF
3. Morbidity and clinical outcome of nephron-sparing surgery in relation to tumour size and indication.
- Author
-
Patard JJ, Pantuck AJ, Crepel M, Lam JS, Bellec L, Albouy B, Lopes D, Bernhard JC, Guillé F, Lacroix B, De La Taille A, Salomon L, Pfister C, Soulié M, Tostain J, Ferriere JM, Abbou CC, Colombel M, and Belldegrun AS
- Subjects
- California epidemiology, Female, Follow-Up Studies, France epidemiology, Humans, Length of Stay statistics & numerical data, Male, Middle Aged, Morbidity trends, Neoplasm Staging, Prognosis, Retrospective Studies, Survival Rate trends, Time Factors, Carcinoma, Renal Cell epidemiology, Carcinoma, Renal Cell pathology, Carcinoma, Renal Cell surgery, Kidney Neoplasms epidemiology, Kidney Neoplasms pathology, Kidney Neoplasms surgery, Nephrectomy methods, Nephrons surgery
- Abstract
Objective: To analyse through a large multicentre series, morbidity of nephron-sparing surgery (NSS) in relation to tumour size and surgical indication., Methods: The study included patients from eight international academic centres. Age, sex, TNM stage, tumour size, Fuhrman grade, Eastern Cooperative Oncology Group performance status (ECOG-PS), surgical margins, local and distant recurrences, and overall and cancer-specific survival rates were collected and analysed. Indication for elective or mandatory NSS, medical and surgical complication rates, mean blood loss, blood transfusion, and length of hospital stay were specifically recorded for the purpose of this study. Groups were compared for qualitative and quantitative variables by using chi(2) (Fischer exact test) and Student t tests, respectively., Results: A total of 1048 NSS procedures were included in this study. Mean tumour size was 3.4+/-2.1cm. In 730 elective procedures mean operative time (p=0.002), mean blood loss (p=0.01), the need for blood transfusion (p=0.001), and urinary fistula rate (p=0.01) were significantly increased for tumours >4 cm. However, these differences did not result in significantly increased medical (p=0.4), surgical complication rates (p=0.6), or length of hospital stay (p=0.9). Finally, in elective procedures for malignant tumours, positive surgical margins, local or distant recurrence rates, and cancer-specific survival were not significantly different in tumours < or =4 cm and >4 cm., Conclusion: Excellent cancer control and outcomes can be achieved with NSS in carefully selected patients with tumours >4 cm. Expanding the size indication of elective NSS results in an increased but acceptable morbidity.
- Published
- 2007
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.