Publications by authors named "Willem J Klokman"

Purpose: To evaluate the risk of cardiovascular events (CVE) in patients with cervical cancer treated with radiotherapy or chemoradiation.

Methods And Materials: The incidence of CVE in patients treated between 1989 and 2002 by radiotherapy or chemoradiation was compared with a Dutch reference population. Standardized incidence ratios (SIRs) were calculated for myocardial infarction (MI), angina pectoris (AP), congestive heart failure (CHF), cerebrovascular accident (CVA) separately and for any cardiac event combined (MI, AP, and CHF).

View Article and Find Full Text PDF

Background & Aims: Although gastric cancer forms part of the Lynch syndrome tumor spectrum, the risk of developing gastric cancer in Lynch syndrome families is unknown, resulting in a lack of clear guidelines for surveillance. The aim of this study was to evaluate incidence trends and risk of developing gastric cancer among Lynch syndrome mutation carriers in a Western population.

Methods: Lynch syndrome mutation carriers were selected from the Dutch Hereditary Cancer Registry.

View Article and Find Full Text PDF

We assessed cardiovascular disease (CVD) incidence in 1474 survivors of Hodgkin lymphoma (HL) younger than 41 years at treatment (1965-1995). Multivariable Cox regression and competing risk analyses were used to quantify treatment effects on CVD risk. After a median follow-up of 18.

View Article and Find Full Text PDF

The aim of this study was to evaluate whether patients with salivary gland tumours are at increased risk of developing breast cancer. A retrospective cohort study was performed. Female patients (n = 439) with a salivary gland tumour (major and minor) were included.

View Article and Find Full Text PDF

Purpose: To assess long-term cause-specific mortality of young Hodgkin's disease (HD) patients.

Patients And Methods: The study population consisted of 1,261 patients treated for HD before age 41 between 1965 and 1987. Follow-up was complete until October 2000.

View Article and Find Full Text PDF

Background: Female survivors of Hodgkin's disease (HD) have a strongly elevated risk of breast cancer, but factors responsible for the increased risk are not well known.

Methods: We investigated the effects of radiation dose, chemotherapy (CT), and reproductive factors on breast cancer risk in a nested case-control study in The Netherlands in a cohort of 770 female patients who had been diagnosed with HD before age 41. Detailed treatment information and data on reproductive factors were collected for 48 case patients who developed breast cancer 5 or more years after diagnosis of HD and 175 matched control subjects.

View Article and Find Full Text PDF

Purpose: To estimate the risk of ischemic stroke in patients irradiated for head and neck tumors.

Patients And Methods: The incidence of ischemic stroke was determined in 367 patients with head and neck tumors (162 larynx carcinomas, 114 pleomorphic adenomas, and 91 parotid carcinomas) who had been treated with local radiotherapy (RT) at an age younger than 60 years. Relative risk (RR) of ischemic stroke was determined by comparison with population rates from a stroke-incidence register, adjusted for sex and age.

View Article and Find Full Text PDF