Hak Jin Kim

Clinical Characteristics of Malignant Pericardial Effusion Associated with Recurrence and Survival

Purpose We evaluated clinical outcomes after drainage for malignant pericardial effusion with imminent or overt tamponade. Materials and Methods Between August 2001 and June 2007, 100 patients underwent pericardiocentesis for malignant pericardial effusion. Adequate follow-up information on the recurrence of pericardial effusion and survival status was available for 98 patients. Results Recurrence of effusion occurred in 30 patients (31%), all of whom were diagnosed with adenocarcinoma. Multivariate analysis indicated that adenocarcinoma of the lung (hazard ratio [HR], 6.6; 95% confidence interval [CI], 1.9 to 22.3; p=0.003) and progressive disease despite chemotherapy (HR, 4.3; 95% CI, 1.6 to 12.0; p=0.005) were independent predictors of recurrence. Survival rates three months after pericardiocentesis differed significantly with the type of primary cancer; the rates were 73%, 18%, 90% and 30% in patients with adenocarcinoma of the lung, squamous cell carcinoma of the lung, breast cancer and other cancers, respectively. Conclusion Recurrence and survival of patients with malignant pericardial effusion are dependent on the type of primary cancer and response to chemotherapy. Patients with adenocarcinoma of the lung may be good candidates for surgical drainage to avoid repeated pericardiocentesis, but pericardiocentesis is considered effective as palliative management in patients with other cancers.

The Contribution of Abdominal Obesity and Dyslipidemia to Metabolic Syndrome in Psychiatric Patients

Background/Aims Metabolic syndrome is an emerging risk factor for cardiovascular disease. This study investigated the prevalence of metabolic syndrome among psychiatric patients in order to identify the dominant factors of metabolic syndrome. Methods We enrolled 225 patients who had been admitted to a chronic psychiatric hospital from October 2005 to February 2006. The prevalence of metabolic syndrome was assessed based on the Adult Treatment Panel (ATP)-III with the new criterion of waist circumference in the Asia-Pacific Region. Results The study population was relatively young (41.1 ± 8.8 years) and obese (waist in men, 91.3 ± 9.2 cm; waist in women, 84.1 ± 8.8 cm). Sixty percent of patients met the waist criterion of metabolic syndrome and 56% met the low high density lipoprotein (HDL) criterion. The mean serum triglycerides were high (170.0 ± 119.7 mg/dL) and 46% of patients met the triglyceride criterion. In contrast, less than 10% of patients showed impaired fasting glucose or high blood pressure (5%, 9%, respectively). The overall prevalence of metabolic syndrome was 34.2% by applying ATP-III criteria (40% in men and 20% in women, respectively). No specific anti-psychotic drugs were related to significant increase in the incidence of metabolic syndrome. Conclusions Abdominal obesity and dyslipidemia (low HDL and high triglycerides) were dominant contributing factors of metabolic syndrome among psychiatric patients, and the affected age groups were relatively young. These findings indicate that active and early screening, including triglycerides, HDL, and waist measurement, are absolutely essential to managing metabolic syndrome in psychiatric patients.

A Case of Locally Advanced Breast Cancer Complicated by Pulmonary Tumor Thrombotic Microangiopathy.

Pulmonary tumor thrombotic microangiopathy (PTTM) is a rare, malignancy-related complication that causes marked pulmonary hypertension, right heart failure, and death. We report on a patient with locally advanced breast cancer whose course was complicated by fatal PTTM based on clinical and laboratory findings.

Prevalence and Positive Predictive Value of Poor R-Wave Progression and Impact of the Cardiothoracic Ratio

Background and Objectives Poor R-wave progression (PRWP) is a common electrocardiographic diagnosis. However, the diagnostic usefulness of PRWP for coronary artery disease (CAD) and the plausible explanation for subjects with normal heart function are unclear. Subjects and Methods We included 20,739 subjects who had routine medical examinations and applied the commonly used criteria (R-waves in V3 or V4 ≤2 mm) and the Marquette criteria in the current study. Subjects with PRWP by the Marquette criteria, but with no evidence of specific causes, were identified. Healthy age- and gender-matched controls were selected randomly for comparing cardiothoracic ratios. Results The commonly used criteria in practice were met by 372 of the 20,739 subjects (1.8%). The Marquette criteria were met by 96 subjects (0.5%), and 82 of who agreed to medical evaluation. Five subjects had known CAD and only one subject was shown to have a silent myocardial infarction by additional testing. Therefore, the positive predictive value of PRWP for CAD was 7.3% (6/82) based on the Marquette criteria. As compared with the control group, the subjects with PRWP had a significantly low cardiothoracic ratio (0.425 vs. 0.445, p<0.05), especially among the male group (0.454 vs. 0.407, p=0.02). Conclusion The positive predictive value of PRWP for CAD in the general population is so low that additional tests for diagnosis may be unreasonable. In addition, a low cardiothoracic ratio could be a plausible explanation of PRWP in subjects without any identifiable cause.