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Medline ® Abstracts for References 103-107

of 'Cancer of the appendix and pseudomyxoma peritonei'

103
TI
Prospective morbidity and mortality assessment of cytoreductive surgery plus perioperative intraperitoneal chemotherapy to treat peritoneal dissemination of appendiceal mucinous malignancy.
AU
Sugarbaker PH, Alderman R, Edwards G, Marquardt CE, Gushchin V, Esquivel J, Chang D
SO
Ann Surg Oncol. 2006;13(5):635. Epub 2006 Mar 10.
 
BACKGROUND: Appendiceal mucinous neoplasms present, in most patients, with peritoneal dissemination at the time of initial diagnosis. Patients may have a borderline tumor showing disseminated peritoneal adenomucinosis or an aggressive malignancy identified as peritoneal mucinous adenocarcinoma. Patients with these diagnoses were treated by cytoreductive surgery and perioperative intraperitoneal chemotherapy.
METHODS: A database was established in 1998 that prospectively evaluated the morbidity and mortality of this group of patients. By using common toxicity grading criteria, 8 categories were scored on a grade of I to V. Grade IV indicated that the adverse event required urgent and definitive intervention: often a return to the operating room or to the surgical intensive care unit. Grade V indicated that the adverse events resulted in the patient's death. Adverse events were tabulated for each cytoreduction performed in these appendiceal malignancy patients.
RESULTS: There were 356 procedures in patients taken to the operating room who received cytoreductive surgery with peritonectomy procedures plus heated intraoperative intraperitoneal chemotherapy. Only patients who had this combined treatment at our institution were included in the analysis. The total 30-day or in-hospital mortality was 2.0%. Nineteen percent of procedures were accompanied by at least one grade IV adverse event, and 11.1% of patients returned to the operating room. The most common category of grade IV complications was hematological (28%), followed by gastrointestinal (26%).
CONCLUSIONS: The mortality of 2.0% and the overall grade IV morbidity of 19% in these patients may be acceptable in light of modern standards for the management of gastrointestinal cancer.
AD
Washington Cancer Institute, 106 Irving Street, N.W., Suite 3900, Washington, DC 20010, USA. paul.sugarbaker@medstar.net
PMID
104
TI
Aggressive surgical management of peritoneal carcinomatosis with low mortality in a high-volume tertiary cancer center.
AU
Gusani NJ, Cho SW, Colovos C, Seo S, Franko J, Richard SD, Edwards RP, Brown CK, Holtzman MP, Zeh HJ, Bartlett DL
SO
Ann Surg Oncol. 2008;15(3):754.
 
BACKGROUND: Cytoreductive surgery (CS) combined with hyperthermic intraperitoneal chemotherapy (HIPEC) for treatment of peritoneal carcinomatosis (PC) traditionally involves high perioperative morbidity and mortality. We report our experience performing CS-HIPEC in a high-volume regional perfusion program designed to limit morbidity and mortality.
METHODS: A total of 122 patients underwent 124 CS-HIPEC procedures. Common tumors treated with CS-HIPEC included appendiceal (38.5%), colorectal (24.6%), and ovarian cancers (13.1%), and peritoneal mesothelioma (12.3%). Complete cytoreduction was performed in all patients, with organ resections performed as necessary.
RESULTS: R0 resection was achieved in 28.7% of cases, R1 in 54.9%, and R2 in 16.4%. Median operative time was 460 minutes (range, 250-840 minutes), and median blood loss was 1150 mL (range, 10-14,000 mL). Median hospital and intensive care unit stays were 12 days (range, 6-50 days) and 3 days (range, 0-41 days), respectively. Grade 3 or 4morbidity by National Cancer Institute criteria (major morbidity) was seen in 29.8% of cases, with overall morbidity 56.5%. Independent prognostic variables for major morbidity included number of anastomoses and degree of cytoreduction. In-hospital and 30-day mortality rates were 0% and 1.6%, respectively. The most favorable diagnosis was appendiceal cancer, for which 2-year survival was 66.7%, with lower-grade histologic subtypes of appendiceal cancer reaching 85.7% 2-year survival. Colorectal cancer had 2-year survival of 36.7%.
CONCLUSIONS: In a high-volume center with extensive experience treating peritoneal malignancies, perioperative mortality can be lowered to nearly zero, although morbidity remains high. CS-HIPEC procedures should be studied further in a controlled manner to help define their important role in the care of patients with PC.
AD
Division of Surgical Oncology, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA. ngusani@psu.edu
PMID
105
TI
Modern systemic chemotherapy in surgically unresectable neoplasms of appendiceal origin: a single-institution experience.
AU
Shapiro JF, Chase JL, Wolff RA, Lambert LA, Mansfield PF, Overman MJ, Ohinata A, Liu J, Wang X, Eng C
SO
Cancer. 2010;116(2):316.
 
BACKGROUND: Appendiceal neoplasms include tumors ranging from benign-appearing cells with widespread mucin deposits to aggressive poorly differentiated signet ring cell adenocarcinomas. Traditionally, these tumors are treated with cytoreductive surgery followed by hyperthermic intraperitoneal chemotherapy. For some patients, cytoreductive surgery is not an option, and minimal published data exist in the management and outcome of these patients. A retrospective analysis was conducted to determine the benefit of modern systemic chemotherapy in patients with disseminated appendiceal neoplasm who were not considered optimal candidates for cytoreductive surgery.
METHODS: A retrospective review was conducted using The University of Texas M. D. Anderson Cancer Center tumor registry between January 2000 and July 2005. Response was determined by radiographic response and/or overall clinical benefit.
RESULTS: Of 186 patients diagnosed with appendiceal neoplasm, 54 (29%) patients considered to be suboptimal surgical candidates received>or =2 cycles ofsystemic chemotherapy. Thirty (55.6%) patients had a disease control rate noted as a complete response, partial response, or stable disease. After a median follow-up of 24 months, the median progression-free survival (PFS) and overall survival were determined to be 7.6 months (95% confidence interval [CI], 4-11) and 56 months (95% CI, 36-not applicable), respectively.
CONCLUSIONS: Systemic chemotherapy has a role in appendiceal neoplasm patients who are suboptimal candidates for cytoreductive surgery. The intermediate PFS indicates the challenges that exist for appendiceal neoplasm patients in this setting. Prospective randomized trials including systemic chemotherapy are needed to provide further insight into this malignancy, for which no standard exists.
AD
Division of Pharmacy, The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030-1402, USA.
PMID
106
TI
Systemic chemotherapy and surgical cytoreduction for poorly differentiated and signet ring cell adenocarcinomas of the appendix.
AU
Lieu CH, Lambert LA, Wolff RA, Eng C, Zhang N, Wen S, Rafeeq S, Taggart M, Fournier K, Royal R, Mansfield P, Overman MJ
SO
Ann Oncol. 2012;23(3):652. Epub 2011 Jun 8.
 
BACKGROUND: Poorly differentiated and signet ring cell adenocarcinomas of the appendix represent a subset with aggressive tumor biology and poor outcomes with few studies evaluating the impact of systemic chemotherapy and cytoreductive surgery (CRS).
PATIENTS AND METHODS: A retrospective chart review of patients with either poorly differentiated and signet ring cell appendiceal adenocarcinomas was completed from 1992 to 2010.
RESULTS: One hundred forty-two patients were identified. Seventy-eight patients with metastatic disease received chemotherapy. Radiographic response was 44%, median progression-free survival (PFS) was 6.9 months, and median overall survival (OS) was 1.7 years. In multivariate analysis, response to chemotherapy [hazard ratio (HR) 0.5; P = 0.02]predicted improved PFS, and complete CRS (HR 0.3; P = 0.004) predicted improved OS. Patients who underwent complete CRS (n = 26) had a median relapse-free survival (RFS) of 1.2 years and a median OS of 4.2 years. In multivariate analysis for this subset, complete cytoreduction score of 0 was significantly correlated with improved RFS (HR 0.07; P = 0.01) and OS (HR 0.02; P = 0.01).
CONCLUSIONS: Systemic chemotherapy appears to be a viable treatment option for patients with metastatic poorly differentiated and signet ring cell appendiceal adenocarcinomas. Complete CRS is associated with improved RFS and OS, though part of this benefit likely reflects the selection of good tumor biology.
AD
Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
PMID
107
TI
A phase II study evaluating the use of concurrent mitomycin C and capecitabine in patients with advanced unresectable pseudomyxoma peritonei.
AU
Farquharson AL, Pranesh N, Witham G, Swindell R, Taylor MB, Renehan AG, Rout S, Wilson MS, O'Dwyer ST, Saunders MP
SO
Br J Cancer. 2008;99(4):591.
 
Pseudomyxoma peritonei (PMP) is a rare neoplastic process characterised by progressive intra-abdominal dissemination of mucinous tumour, and generally considered resistant to systemic chemotherapy. A phase II study in patients with advanced unresectable PMP was undertaken to evaluate the combination of systemic concurrent mitomycin C (7 mg m(-2) i.v. on day 1) and capecitabine (1250 mg m(-2) b.d. on days 1-14) in a 3-weekly cycle (MCap). Response was determined by semiquantitative assessment of disease volume on serial computed tomographic (CT) scans and serum tumour marker (CEA, CA125, CA19-9) changes at 12 weeks. Between 2003 and 2006, 40 patients were recruited through a national centre for the treatment of peritoneal surface tumours. At baseline, 23 patients had progressive disease and 17 had stable disease. Of 39 assessable patients, 15 (38%, 95% confidence intervals (CIs): 25, 54%) benefited from chemotherapy in the form of either reductions in mucinous deposition or stabilisation of progressive pretreatment disease determined on CT scan. Notably, two patients, originally considered unresectable, following MCap and re-staging underwent potentially curative cytoreductive surgery. Grade 3/4 toxicity rates were low (6%, 95% CIs: 4, 9%). Twenty out of 29 assessed patients (69%,95% CIs: 51, 83%) felt that their Global Health Status improved during chemotherapy. This is the first trial to demonstrate an apparent benefit of systemic chemotherapy in patients with advanced unresectable PMP.
AD
Peritoneal Tumour Service, Department of Surgery, Christie Hospital NHS Foundation Trust, Manchester, UK.
PMID