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Featured researches published by W. S. Velasquez.


Journal of Clinical Oncology | 1990

Stomach conservation in stages IE and IIE gastric non-Hodgkin's lymphoma.

Moshe H. Maor; W. S. Velasquez; Lillian M. Fuller; Karen Silvermintz

Thirty-four patients with stages IE and IIE gastric lymphoma were treated with chemotherapy and radiotherapy combinations without stomach resection. In 20 patients, the diagnosis was established by endoscopic biopsy only; the other 14 had laparotomy and biopsy. No patient had a gastrectomy before treatment. Nineteen patients had stage IE disease and 15 had stage IIE. Lymphoma diagnoses were: diffuse large-cell, 26; immunoblastic, three; diffuse well-differentiated, three; nodular mixed, one; and unclassified, one. The treatment plan was to deliver an initial four cycles of chemotherapy, followed by radiotherapy, and finally, more chemotherapy. Thirty-three patients received cyclophosphamide, doxorubicin, vincristine, prednisone, and bleomycin (CHOP-Bleo). Four patients with stage IIE disease received cyclophosphamide, methotrexate, etoposide, and dexamethasone (CMED). Twenty-three patients (68%) never had a relapse. Three patients had successful salvage therapy, one for local recurrence and two for tumor dissemination. Five patients died of recurrent abdominal disease, and one died of tumor dissemination. Two died of treatment-related complications, one of sepsis during treatment with CMED and one of bleomycin-induced lung fibrosis. No patient developed stomach perforation or bleeding as a result of chemotherapy or radiotherapy. Twenty-four of the 26 surviving patients were able to retain their stomachs. One patient required a gastrectomy for progressive disease during chemotherapy, and another required a subtotal gastrectomy for relief of an obstruction caused by cicatrization. These data show that surgery is not a necessary procedure in gastric lymphoma. Favorable results can be achieved by combining effective chemotherapy and local radiation.


Journal of Clinical Oncology | 1987

MIME chemotherapy (methyl-GAG, ifosfamide, methotrexate, etoposide) as treatment for recurrent Hodgkin's disease.

Fredrick B. Hagemeister; Nizar M. Tannir; Patricia J. McLaughlin; P Salvador; Shirley Riggs; W. S. Velasquez; Fernando Cabanillas

Forty-seven patients with Hodgkins disease in relapse were treated with MIME combination chemotherapy (methyl-GAG, ifosfamide, methotrexate, etoposide). All patients had previously received nitrogen mustard, vincristine, prednisone, procarbazine (MOPP) or similar regimens and doxorubicin-containing combinations, and many had received extensive irradiation. Complete remission (CR) occurred in 23%, and was influenced by presence of extranodal disease, hemoglobin, lactic dehydrogenase (LDH), and number of prior relapses. Median survival for all patients was 50 weeks, and was affected adversely by the presence of extranodal disease and the number of prior relapses. Toxicity was significant, including infections (23%), neutropenic fever (34%), and hemorrhagic cystitis (23%), but was related in part to the extent of prior therapy. These results with this novel chemotherapy program in heavily pretreated patients suggest that MIME should be studied in less extensively treated patients and considered as a part of treatment programs for patients with Hodgkins disease in first relapse.


Journal of Clinical Oncology | 1995

Results of a salvage treatment program for relapsing lymphoma: MINE consolidated with ESHAP.

Maria Alma Rodriguez; F. C. Cabanillas; W. S. Velasquez; Fredrick B. Hagemeister; Patricia J. McLaughlin; F. Swan; Jorge Romaguera

PURPOSE We report the results of a prospective trial in which patients with relapsing non-Hodgkins lymphomas were sequentially treated with two regimens (mesna, ifosfamide, mitoxantrone, and etoposide [MINE], and etoposide, methylprednisolone, cytarabine, and cisplatin [ESHAP]) if they had no history of disease resistance to these drugs. PATIENTS AND METHODS Ninety-two patients received MINE (mesna 4 g/m2, ifosfamide 4 g/m2, mitoxantrone 8 mg/m2, and etoposide 195 mg/m2) for a maximum of six courses followed by ESHAP (etoposide 240 mg/m2, methylprednisone 500 mg/d, high-dose cytarabine 2 g/m2, and cisplatin 100 mg/m2) for three courses to consolidate complete response (CR) or for a maximum of six cycles after a partial response (PR) or no response to MINE. Pretreatment serum levels of lactate dehydrogenase (LDH) and beta 2-microglobulin (beta 2M) were documented in 80 of 92 patients. RESULTS The response rate to MINE-ESHAP was 69% (48% CRs and 21% PRs), with a median survival time of 24 months and median time to treatment failure of 12 months. The median time to treatment failure according to histology was as follows: low-grade histologies, 16 months; low-grade transformed to intermediate-grade, 8 months; and intermediate-grade, 5 months. The most serious complication was myelosuppression, which resulted in two deaths due to neutropenic sepsis. A risk factor model based on beta 2M and LDH levels before salvage treatment showed three categories of risk, with 36-month survival rates as follows: low (beta 2M < 3 mg/dL and LDH normal), 61%; intermediate (beta 2M > or = 3 mg/dL or LDH above normal), 23%; and high (beta 2M > or = 3 mg/dL and LDH above normal), 0%. CONCLUSION MINE-ESHAP is an effective salvage strategy for patients with recurrent lymphoma. Toxicity was acceptable. Factors that determine prognostic categories at relapse merit further study.


Cancer | 1981

Reassessment of prognostic factors in stage IIIA and IIIB Hodgkin's disease treated with MOPP and radiotherapy.

Roger W. Rodgers; Lillian M. Fuller; Fredrick B. Hagemeister; Dennis A. Johnston; Jane A. Sullivan; Luceil B. North; James J. Butler; W. S. Velasquez; Fred G. Conrad; C. C. Shullenberger

Prognostic factors have been re‐evaluated for 88 patients with Stage III Hodgkins disease to see if they have remained significant on a long‐term basis. Treatment had consisted of two cycles of MOPP followed by radiotherapy to the mantle, abdomen, and pelvis; all patients had achieved complete remission. Case material was grouped according to the presence or absence of mediastinal disease. Five‐year survivals for Stage IIIA and IIIB patients were 85 and 80%; corresponding disease‐free survivals were 76 and 73%. Significant prognostic factors include age, histopathology, and extent of abdominal disease, but the relative importance of these factors differs for the mediastinal and nonmediastinal patients. Modifications of current treatment policy for both mediastinal and nonmediastinal patients are discussed in relation to the prognostic factors.


Cancer | 1982

Treatment of patients with stages I and II nonmediastinal Hodgkin's disease

Fredrick B. Hagemeister; Lillian M. Fuller; Jane A. Sullivan; Dennis A. Johnston; Luceil B. North; James J. Butler; W. S. Velasquez; C. C. Shullenberger

In this study, 95 patients with laparotomy‐staged I and II nonmediastinal Hodgkins disease were treated with involved fields (41 patients), mantle (17), extended fields (26), or involved fields followed by 6 cycles of MOPP (11). Eighty‐five patients had upper torso presentations. Seventy had Stage I disease and 25 had stage II. Pathologic findings were nodular sclerosing, 33; mixed cellularity, 41; lymphocyte predominance, 20; and unclassified, one. Five‐year overall survivals were excellent regardless of stage, pathologic findings, or treatment: 98% for involved fields or mantle, and 100% for both extended fields and involved fields followed by 6 cycles of MOPP. Corresponding disease‐free survivals were 77%, 82%, and 86%, respectively. For patients with upper torso presentations, diseasefree figures for the mantle (94%) were better than those for involved fields alone (67%). In addition, regression analysis proved involved fields to be a prognostic factor for a lower disease‐free survival. No difference between extended fields or mantle radiotherapy could be detected using this model. Relapses usually occurred in nonirradiated upper torso sites. Only three of the 36 patients treated with involved fields and one of 21 treated with extended fields relapsed in the abdomen alone. Most patients in relapse were salvaged. Rescue treatment was most often radiotherapy and adjuvant combination chemotherapy. Based on this study, the use of mantle radiotherapy is recommended in treating laparotomy‐staged I and II patients with nonmediastinal presentations, and the use of extended fields or adjuvant chemotherapy as primary prevention is not recommended.


Annals of Oncology | 1993

Hodgkin's disease: Study of treatment intensities and incidences of second malignancies

Maria Alma Rodriguez; Lillian M. Fuller; S. O. Zimmerman; Pamela K. Allen; Barry W. Brown; Mark F. Munsell; Fredrick B. Hagemeister; Patricia J. McLaughlin; W. S. Velasquez; F. Swan; Fernando Cabanillas


Cancer treatment reports | 1982

Stage I and II Hodgkin's disease: Involved-field radiotherapy versus extended-field radiotherapy versus involved-field radiotherapy followed by six cycles of MOPP

F. B. Hagemeister; Lillian M. Fuller; W. S. Velasquez; J. A. Sullivan; L. North; J. J. Butler; D. A. Johnston; C. C. Shullenberger


Annals of Oncology | 1993

CHOP-Bleo plus interferon for stage IV low-grade lymphoma

Patricia J. McLaughlin; Fernando Cabanillas; Fredrick B. Hagemeister; F. Swan; Jorge Romaguera; S. Taylor; Maria Alma Rodriguez; W. S. Velasquez; John R. Redman; J. U. Gutterman


Annals of Oncology | 1995

A phase II trial of mesna/ifosfamide, mitoxantrone and etoposide for refractory lymphomas

Maria Alma Rodriguez; F. C. Cabanillas; Fredrick B. Hagemeister; Patricia J. McLaughlin; Jorge Romaguera; F. Swan; W. S. Velasquez


Annals of Oncology | 1992

Therapy of relapsed or refractory low-grade follicular lymphomas: Factors associated with complete remission, survival and time to treatment failure

J. A. Spinolo; Fernando Cabanillas; Dennis O. Dixon; S. M. Khorana; Patricia J. McLaughlin; W. S. Velasquez; Fredrick B. Hagemeister; John R. Redman; F. Swan

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Lillian M. Fuller

University of Texas MD Anderson Cancer Center

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Fredrick B. Hagemeister

University of Texas MD Anderson Cancer Center

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F. Swan

University of Texas MD Anderson Cancer Center

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Fernando Cabanillas

University of Texas MD Anderson Cancer Center

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Maria Alma Rodriguez

University of Texas MD Anderson Cancer Center

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C. C. Shullenberger

University of Texas at Austin

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Dennis O. Dixon

University of Texas MD Anderson Cancer Center

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John R. Redman

University of Texas MD Anderson Cancer Center

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