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Biomedical subjects

S B Standiford

Publications and source records attributed to S B Standiford.

7 recordsLinked to original sources
PubMed1998

Surgical management of aberrant sentinel lymph node drainage in cutaneous melanoma.

BACKGROUND: Sentinel lymph node (SLN) mapping by lymphoscintigraphy has changed the surgical management of regional lymph node metastases for melanoma. SLNs lying outside of traditional nodal basins are now being identified. Our hypothesis is that when preoperative lymphoscintigraphy identifies aberrant SLNs, these nodes should be excised and, if histologically positive, lymphadenectomy of the aberrant nodal basin should be performed. METHODS: Patients with melanomas 1 mm or larger Breslow thickness and clinical stage N0M0 underwent lymphoscintigraphy and excision with SLN biopsy. Preoperative lymphoscintigraphy, intraoperative gamma probe, and intraoperative injection of isosulfan blue were performed to identify the SLN. Aberrant SLNs were defined as epitrochlear, supraclavicular, or popliteal nodes for extremity lesions and intramuscular nodes for truncal and head and neck lesions. RESULTS: Thirty-two patients were entered into the protocol. Seven (22%) were found to have aberrant nodes. Five of 19 patients with extremity melanoma had an aberrant SLN; 2 of 13 patients with truncal and head and neck melanoma had an aberrant SLN. CONCLUSIONS: This study demonstrates that (1) aberrant SLNs are encountered with similar frequency for extremity and truncal lesions, (2) biopsy should be performed on aberrant SLNs with intraoperative lymph node mapping with the gamma probe and blue dye, and (3) lymphadenectomy of the aberrant region should be considered if the aberrant SLN is positive.

Adolescent↗
PubMed1994

Total pelvic exenteration. A 50-year experience at the Ellis Fischel Cancer Center.

OBJECTIVE: To review a 50-year experience with total pelvic exenteration for treatment of advanced pelvic cancer. DESIGN: Retrospective study with 100% follow-up. SETTING: Cancer hospital. PATIENTS: Two hundred thirty-two patients referred for treatment of advanced pelvic cancer who underwent total pelvic exenteration. MAIN OUTCOME MEASURES: Rates of operative mortality, complications, recurrence, and 5-year survival. RESULTS: The morbidity rate was 45%. The operative death rate was 14% during the 50-year period, but decreased from 16.8% in the first three decades to 10% thereafter. Eighty-nine patients (38%) had recurrences. The overall 5-year survival rate was 42%. CONCLUSIONS: Operative mortality and morbidity have declined over 50 years, largely because of proper patient selection, increasing experience, and advances in perioperative care. Exenteration has a major role in the treatment of advanced pelvic cancer.

Adult↗
PubMed1992

Posthemipelvectomy hernia.

We present four patients who developed posthemipelvectomy hernias. Identified etiologic factors include infection at the time of hemipelvectomy, radiation therapy, and excessive weight gain. Two patients were reconstructed using local tissues, and two required prosthetic materials. There were no hernia recurrences, although two patients died of recurrent cancer.

Adult↗
PubMed1989

Inflammatory pseudotumor of the liver.

Inflammatory pseudotumors (plasma cell granulomas) are localized lesions consisting of a fibrous stroma, chronic inflammatory infiltrate with a predominance of plasma cells, and an absence of anaplasia, which can mimic malignant disease by their gross appearance. Reported in many sites, they are most frequently described in the lung. Twelve cases involving the liver and biliary tract have previously been reported. Here, a 77-year-old man who presented with fever and malaise was found to have a lesion in the left lobe of the liver, which, on exploration, was found to be an inflammatory pseudotumor. This patient, and each of those previously reported, has recovered uneventfully. Because of the benign course of this lesion, hepatectomy should be considered only in those instances in which the mass effect of the lesion is producing symptoms or in those cases in which a firm histologic diagnosis cannot be made preoperatively or by frozen section intraoperatively.

Aged↗
PubMed1985

Evaluation of absorbable polyglycolic acid mesh as a wound support.

The ideal wound-support material would reinforce a wound early in the healing process when intrinsic wound strength is the weakest, yet disappear over time, preventing many of the untoward late effects seen with currently utilized nonabsorbable materials. This study was designed to evaluate the effectiveness of a newly designed absorbable material, polyglycolic acid mesh (Dexon), as a buttress for abdominal wounds closed under moderate tension. Young male rats (n = 211) were divided into three experimental groups. Animals in groups 1 (n = 96) and 2 (n = 95) had a 1.2 cm2 midline abdominal wall defect created and closely primarily. Animals in group 2 had a 2 X 5 cm piece of polyglycolic acid mesh sutured to the anterior abdominal wall overlying the closed abdominal defect. Animals in group 3 (n = 20) were unoperated controls. The animals in groups 1 and 2 were killed 1, 2, 3, 4, and 5 weeks after surgery. The entire anterior abdominal wall was removed and placed upon a bursting strength testing device. Bursting strength determinations of the supported and unsupported abdominal closures revealed that the strength of the wounds reinforced with polyglycolic acid mesh was significantly greater than unsupported wounds at 1, 2, and 3 weeks after surgery. Wounds supported with mesh had bursting strengths similar to unoperated abdomens by the first postoperative week. This study demonstrates that abdominal wall defects in rats closed primarily develop increased wound strength when the closure is supported by absorbable polyglycolic acid mesh. The use of an absorbable material may alleviate potential late complications associated with implantation of nonabsorbable materials. The clinical application of such a material remains to be determined.

Abdominal Muscles↗