Publications by authors named "David O Holtz"

Objective: To review the results of patients who were referred for posthysterectomy of abnormal cytology based on screening indications.

Materials And Methods: We performed a retrospective review of 64 patients who have been referred for posthysterectomy vaginal colposcopy to the gynecologic oncology service. Patients' demographics, clinical features, reason for screening, and final diagnosis were recorded.

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The management of ovarian cancer is not only multifactorial, but also patient-specific. Different treatment modalities lead to varying levels of toxicity and individual patient responses, necessitating a personalized approach to each treatment plan. Surgical treatment along with first-line and salvage chemotherapies, are standard modalities but recent innovations in chemotherapy delivery and innovative therapy with mechanism of action are reviewed in this article.

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Study Objective: To compare surgical costs for endometrial cancer staging between robotic-assisted and traditional laparoscopic methods.

Design: Retrospective chart review from November 2005 to July 2006 (Canadian Task Force classification II-3).

Setting: Non-university-affiliated teaching hospital.

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Objective: To compare the results of cold knife conization (CKC) and loop electrosurgical excision procedure (LEEP) for cervical intraepithelial neoplasia to determine if excisional method has effects on pathologic interpretation.

Methods: Retrospective review of the perioperative medical records of patients who had a CKC and electrosurgical loop excision of cervix. Patients selected had either primary treatment for cervical intraepithelial neoplasia, suspected invasion, glandular abnormalities or discordant cytology.

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Because of its low toxicity, low-dose (LD) chemotherapy is ideally suited for combination with antiangiogenic drugs. We investigated the impact of tumor vascular endothelial growth factor A (VEGF-A) expression on the efficacy of LD paclitaxel chemotherapy and its interactions with the tyrosine kinase inhibitor SU5416 in the ID8 and ID8-Vegf models of ovarian cancer. Functional linear models using weighted penalized least squares were utilized to identify interactions between Vegf, LD paclitaxel and antiangiogenic therapy.

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Article Synopsis
  • The study investigates how immune cells, specifically dendritic cell (DC) precursors, contribute to tumor growth and blood vessel formation (vasculogenesis) in cancer.
  • Researchers found that a protein called beta-defensin-29 attracts DC precursors to tumors, which enhances tumor blood supply and growth, especially when the tumor also produces vascular endothelial growth factor-A (Vegf-A).
  • A new type of leukocyte expressing markers from both DCs and blood vessels was identified in ovarian tumors, and it was shown that these DCs not only migrate to tumor vessels but also help form new blood vessels, highlighting the cooperative roles of beta-defensins and Vegf-A in this process.
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Cervical carcinoma is staged clinically by examination and simple radiological procedures. CT and MRI can, however, be used to guide management. Prognosis is best made by tumor size.

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