To compare, through a randomized, multicenter surgical trial, the postoperative tamponade
effectiveness of intraocular silicone oil with that of an intraocular long-acting gas
(initially sulfur hexafluoride [SF 6 ], later perfluoropropane [C 3 F 8 ]) for the management
of retinal detachment complicated by proliferative vitreoretinopathy (PVR), using vitrectomy
and associated techniques.
To evaluate the ocular complications that result from the use of silicone oil and gas.
Diagnostic Study to Identify Sentinel Lymph Nodes in Women With Stage I or Stage II Breast Cancer
Terminated
UNICANCER
N/A
1997-09-01
RATIONALE: Diagnostic procedures, such as blue dye or imaging to identify sentinel lymph
nodes, may improve the ability to detect the extent of disease and help plan effective
surgery for removing breast tumors.
PURPOSE: Diagnostic trial to study the effectiveness of blue dye and an imaging procedure to
identify the sentinel lymph node under the arm in women with stage I or stage II breast
cancer.
Lymphoscintigraphy to Detect Early Metastases in Patients With Cancer of the Mouth or Throat
Completed
National Cancer Institute (NCI)
N/A
1999-05-01
RATIONALE: New imaging procedures such as lymphoscintigraphy may improve the ability to
detect the spread of mouth and throat cancer to lymph nodes in the neck.
PURPOSE: Pilot study of lymphoscintigraphy followed by sentinel lymph node mapping and
sentinel lymph node biopsy to detect lymph node metastases in the neck in patients who have
mouth or throat cancer.
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