Authors


Charbel C. Khoury, MD

Latest:

The Challenges of Treating Cancer Patients on Hemodialysis, or With Chronic Kidney Disease

It is challenging to diagnose, manage, and treat patients who have kidney disease in addition to cancer. Second to cardiovascular disease, cancer represents a major cause of mortality and morbidity in the kidney disease population.


Charles A. Coltman, Jr, MD

Latest:

Prostate Cancer Clinical Trials of the Southwest Oncology Group

The changing clinical dynamics of prostate cancer have resulted in a broadening of the research focus of the Genitourinary (GU) Cancer Committee of the Southwest Oncology Group (SWOG). Beginning with an emphasis on hormone-refractory disease in its early years, SWOG prostate cancer trials now cover the entire spectrum of the disease: localized, locally advanced, metastatic and hormone-refractory disease. As the world's largest GU cancer research group, the GU committee of SWOG has pioneered studies in combined androgen therapy for metastatic disease, quality-of-life (QOL) assessments for patients with localized and advanced disease, adjuvant therapy models, and prostate cancer chemoprevention. The committee has also formed the GU Global Group, whose purpose is to convene the chairs of the GU committees of all the major national and international oncology cooperative groups. Meeting semiannually, this group discusses activities within their respective organizations, plans collaborative strategies and protocols, and establishes global strategy in prostate cancer clinical research. The future directions of national and international prostate cancer trials will build on this broad foundation of well-conceived, logically sequenced studies. [ONCOLOGY 11(8):1155-1170, 1997]


Charles A. Enke, MD

Latest:

Radiation for Diffuse Large B-Cell Lymphoma: More Questions Than Answers

Radiation therapy has an essential role for certain patients with DLBCL. It is hoped that ongoing and future trials will identify the patients who will benefit from this treatment and those for whom it is unnecessary.


Charles A. Forscher, MD

Latest:

Commentary (Rosen/Forscher): Current Combined Treatment of High-Grade Osteosarcomas

In this issue of ONCOLOGY, Damron and Pritchard discuss combined therapy for high-grade osteosarcoma. This is a nice review of the current status of osteogenic sarcoma, certainly from the point of view of modern surgical management, and for


Charles A. Leath III, MD

Latest:

Surgical Staging in Endometrial Cancer

Early presentation of endometrial cancer permits effective managementwith excellent clinical outcome. The addition of hysteroscopy todilatation and curettage (D&C) in the evaluation of postmenopausalbleeding adds little to the detection of malignancy. Imaging studies suchas computed tomography, magnetic resonance imaging, and positronemissiontomography may be of use in determining the presence ofextrauterine disease in patients medically unfit for surgical staging.However, these studies are not sufficiently sensitive to replace surgicalstaging and have little role in routine preoperative evaluation. Clinicalstaging alone is clearly inadequate, as 23% of preoperative clinicalstage I/II patients are upstaged with comprehensive surgical staging.Preoperative tumor grade from D&C or office biopsy may be inaccurateand lead to an underestimate of tumor progression if used to determinewhich patients should be surgically staged. Clinical estimationof depth of invasion, with or without frozen section, is inaccurate andmay lead to underestimation of disease status when surgical staging isnot performed. The practice of resecting only clinically suspicious nodesshould be discouraged as it is no substitute for comprehensive surgicalstaging. Comprehensive surgical staging provides proper guidance forpostoperative adjuvant therapy, avoiding needless radiation in 85% ofclinical stage I/II patients. Finally, resection of occult metastasis withsurgical staging may improve survival.


Charles A. Schiffer, MD

Latest:

Cross Q&A: Role of Belantamab Mafodotin in MM

The panel discusses the efficacy of belantamab mafoditin and where the treatment fits in the multiple myeloma treatment landscape.


Charles A. Staley, MD

Latest:

Commentary (Kooby/Staley): Management of Liver Metastases From Colorectal Cancer

The liver is a frequent site of metastatic colorectal disease. Over the past 20 years, improvements in systemic chemotherapy and surgical techniques have improved the survival of patients with hepatic metastases. For 4 decades, fluorouracil and leucovorin were the only drugs available to treat metastatic colorectal cancer, but several new drugs and a variety of novel regimens are now available. Further improvements in results have been seen with the delivery of chemotherapy via the hepatic artery. Surgical resection of liver metastases has been encouraged when possible, and recent advances in surgery such as portal vein embolization, have made liver resection a possibility for more patients. This review considers the timing and sequence of chemotherapy and surgery in this setting, as well as the roles of cryoablation, radiofrequency ablation, and radiation therapy.


Charles Balch, MD

Latest:

Melanoma Surgical Practice Guidelines

The Society of Surgical Oncology surgical practice guidelines focus on the signs and symptoms of primary cancer, timely evaluation of the symptomatic patient, appropriate preoperative evaluation for extent of disease, and role of the surgeon in


Charles Blanke, MD

Latest:

Current Status of Adjuvant Therapy for Colorectal Cancer

Dr. O’Connell has done a remarkablejob of discussingmodalities available for patientswith intermediate- to high-riskfully resected large bowel malignancies.Indeed, the title “Current Statusof Adjuvant Therapy for ColorectalCancer” is an underestimate of thearticle’s contents, as he nicely detailsthe past development of standard-ofcareadjuvant (and neoadjuvant, whenappropriate) treatments as well. As isclearly pointed out in the article, adjuvanttherapy works. Adding fluorouracil(5-FU) with or without radiationto surgery already saves thousandsof lives each year, and the enticing possibilityof throwing newer chemotherapeuticagents (eg, oxaliplatin)and/or targeted therapies (bevacizumab[Avastin]) into the mix makespotential future successes even greater.


Charles Bloch, PhD

Latest:

Stereotactic Body Radiotherapy in the Management of Painful Bone Metastases

Bone metastases are a common feature of many solid cancers, especially those originating from the prostate, breast, lung, kidney, melanoma, and other sites. Up to 80% of patients with these cancers will develop painful bony disease during the course of their disease.


Charles Butler, MD

Latest:

Plastic Surgery: A Component in the Comprehensive Care of Cancer Patients

Plastic surgical reconstruction extends the capabilities of surgical and radiation therapy for cancer patients. Resection defects that are large, involve functional structures, aesthetically sensitive areas, and/or are at increased risk for wound healing complications are successfully reconstructed with a wide variety of techniques. Cancer and the complications of cancer treatment can involve virtually any area of the body, and to address every potential circumstance, the breadth of oncologic reconstruction must be extensive. A multidisciplinary team approach is the optimal method of cancer treatment, and plastic surgical reconstruction has become a critical component of that treatment, with the ability to restore form and function to the involved areas.


Charles D. Blanke, MD, FACP

Latest:

Cancer Management Chapter 10: Gastric cancer

Gastric cancer is more common than esophageal cancer in Western countries but is less fatal. More than 21,130 new cases of gastric cancer will be diagnosed in the United States in the year 2009, with 10,620 deaths expected. Worldwide, gastric cancer represents approximately 930,000 new cases and accounts for more than 700,000 deaths. The incidence and mortality of gastric cancer have been declining in most developed countries, including the United States; the age-adjusted risk (world estimate) fell 5% from 1985 to 1990.



Charles E. Jackson, MD

Latest:

Genetic Advances Allow Early Detection of MEN Syndromes

The autosomal, dominantly inherited multiple endocrine neoplasia (MEN) syndromes provide some of the best examples of the practical application of advancing technology, not only in the detection and treatment of neoplastic disease but also in the understanding of the mechanisms involved in the initiation and progression of malignancies.


Charles E. Moore, MD

Latest:

Extended Transbasal Approach to Skull Base Tumors

Drs. Chandler and Silva providean excellent review ofthe technical aspects of tumorextirpation in their article, “ExtendedTransbasal Approach to Skull BaseTumors.” The authors describe the subtletiesof the approach in a clear andconcise manner. As they note, the extendedtransbasal approach allows forexcellent access, which can be modifiedto meet the specific surgical need.


Charles E. Putman, MD

Latest:

Radiologic Diagnosis of Extrathoracic Metastases to the Lung

Because many types of cancers metastasize to the lungs, early detection may affect both tumor staging and treatment planning. On the other hand, it is also important to refrain from subjecting patients to procedures that



Charles Enke, MD

Latest:

Commentary (Enke): Management of Sexual Dysfunction After Prostate Brachytherapy

The article by Drs. Merrick,Wallner, and Butler providesan excellent overview of issuespertaining to sexual dysfunctionfollowing prostate brachytherapy.The authors were the first to addressthe historical and current problemswith diagnosing sexual dysfunction.They make a strong case for developinga quality-of-life (QOL) instrumentthat is specific for prostatebrachytherapy.


Charles Erlichman, MD

Latest:

Irinotecan Plus 5-FU and Leucovorin in Advanced Colorectal Cancer: North American Trials

Both fluorouracil (5-FU) and irinotecan (CPT-11 [Camptosar]) have shown activity in metastatic colorectal cancer and are approved for its treatment in the United States. Preclinical experiments in cell cultures and human tumor


Charles F. Lanzieri, MD

Latest:

Commentary (Lanzieri): Current Imaging Techniques for Head and Neck Tumors

Head and neck imaging, in its current form, really began with the development of the computed tomographic (CT) scanner in the late 1970s and early ’80s. Originally, only CT scans of the brain were performed because of constraints on gantry size.


Charles F. Levenback, MD

Latest:

Lymphatic Mapping and Sentinel Node Biopsy in Vulvar, Vaginal, and Cervical Cancers

Over the past 15 years, lymphatic mapping and sentinel lymph node biopsy in vulvar, vaginal, and cervical cancers have been explored by gynecologic oncologists around the world. Based on the results of multiple single-institution studies, most in our field are optimistic that these techniques will increase the rates of detection of lymph node metastasis while decreasing the morbidity associated with lymphadenectomy. Large validation studies are currently underway in both the United States and Europe. In this review article, we present the published data on mapping techniques and discuss future considerations for these technologies.


Charles F. Von Gunten, MD, PhD, FACP

Latest:

Why Oncologists Should Refer Patients Earlier for Hospice Care

In this article, prognostic data are summarized and a suggested approach for discussing hospice enrollment with patients is presented.


Charles G. Drake, MD, PhD

Latest:

Personalized Immune Therapy: A Slippery Fish?

Advances in basic science and clinical medicine in the past few decades have increasingly elevated the profile of personalized medicine, ie, the identification of individual tumor or biologic features that offer targets for therapy.


Charles G. Martin, PhD

Latest:

Commentary (Goepfert/Elting/Martin): Inclusion of Comorbidity in a Staging System for Head and Neck Cancer

Dr. Piccirillo presents an interesting concept. Although the knowledge that comorbidity and severity of symptoms have a bearing on the prognosis of a patient with cancer is not new, the attempt to measure this influence and include it into a reproducible staging system is commendable.


Charles J. Lightdale, MD

Latest:

Endoscopic Ultrasound in the Diagnosis and Staging of Pancreatic Cancer

Two decades have elapsed since publication of the first papers describing the examination of the pancreas via the stomach and the duodenum using an ultrasound probe fixed to an endoscope tip. Initial attempts to image the pancreas in this fashion proved difficult and frustrating, but they were promising enough that instrument makers and gastrointestinal endoscopists persisted in developing increasingly effective devices.


Charles J. Ryan, MD

Latest:

Friend or Foe: The Bifunctional Role of Steroid Hormones in Prostate Cancer

While the multifunctional role of steroid hormones in prostate cancer and men’s health was recognized early, the apparent clinical benefit afforded by ADT tipped the scales in favor of androgen deprivation in men with advanced prostate cancer.


Charles J. Yeo, MD

Latest:

Surgical Management of Pancreatic Cancer

It is with great pleasure that I comment on the excellent article authored by Drs. Ahrendt and Pitt, who have provided a well-written, succinct, up-to-date review focusing on adenocarcinoma of the pancreas. The authors introduce the topic, discuss preoperative staging and assessment of resectability, cover the critical issues regarding resectional therapy and palliative surgery, and provide data on the results of such therapy, including mortality, morbidity, and quality-of-life outcomes. Emphasizing the importance of this topic, the authors note that pancreatic cancer is the fifth leading cause of cancer death in the United States.


Charles Johnson, MD

Latest:

The Prostate Cancer Intervention Versus Observation Trial (PIVOT)

The Prostate Cancer Intervention Versus Observation Trial (PIVOT) is a randomized trial designed to determine whether radical prostatectomy or expectant management provides superior length and quality of life for men with clinically localized prostate cancer. Conducted at Department of Veterans Affairs and National Cancer Institute medical centers, PIVOT will enroll over 1,000 individuals less than 75 years of age. The primary study end point is all-cause mortality. Secondary outcomes include prostate cancer- and treatment-specific morbidity and mortality, health status, predictors of disease-specific outcomes, and cost-effectiveness. Within the first 3 years of enrollment, over 400 men have been randomized. Early analysis of participants' baseline characteristics indicate that enrollees are representative of men diagnosed with clinically localized prostate cancer throughout the United States. Therefore, results of PIVOT will be generalizable. These results are necessary in order to determine the preferred therapy for clinically localized prostate cancer. [ONCOLOGY 11(8):1133-1143, 1997]


Charles L. Bennett, MD, PhD

Latest:

Reassessments of ESAs for Cancer Treatment in the US and Europe

Anemia is a widely prevalent complication among cancer patients. At the time of diagnosis, 30% to 40% of patients with non-Hodgkin lymphoma or Hodgkin lymphoma and up to 70% of patients with multiple myeloma are anemic; rates are higher among persons with myelodysplastic syndromes. Among patients with solid cancers or lymphomas, up to half develop anemia following chemotherapy. For almost 2 decades, erythropoiesis-stimulating agents (ESAs) were the primary treatment for cancer-related anemia. However, reassessments of benefits and risks of ESAs for cancer-associated anemia have occurred internationally. We reviewed guidelines and notifications from regulatory agencies and manufacturers, reimbursement policies, and utilization for ESAs in the cancer and chronic kidney disease settings within the United States, Europe, and Canada. In 2008 the US Food and Drug Administration (FDA) restricted ESAs from cancer patients seeking cure. Reimbursement is limited to hemoglobin levels < 10 g/dL. In the United States, ESA usage increased 340% between 2001 and 2006, and decreased 60% since 2007. The European Medicines Agency (EMEA) recommended that ESA benefits do not outweigh risks. In Europe between 2001 and 2006, ESA use increased 51%; since 2006, use decreased by 10%. In 2009, Canadian manufacturers recommended usage based on patient preferences. In Canada in 2007, approximately 20% of anemic cancer patients received ESAs, a 20% increase since 2004. In contrast to Europe, where ESA use has increased over time, reassessments of ESA-associated safety concerns in the United States have resulted in marked decrements in ESA use among cancer patients.


Charles L. Bennett, MD, PhD Mr. Adams

Latest:

Uncertainty in Medicine: A Talk With Dr. Djulbegovic

In part 2 of this interview, Benjamin Djulbegovic, MD, PhD, discusses the uncertainty principle in clinical trials. Dr. Djulbegovic is associate professor of medicine, Divisions of Blood and Marrow Transplantation, H. Lee Moffitt Cancer Center and Research Institute at the University of South Florida, Tampa.