1.Extensive Venous Tumor Thrombi in a Case of Malignant Melanoma: Role of 18F FDG PET/CT
Nahid YAGHOOBI ; Raheleh HEDAYATI ; Hadi MALEK ; Mehdi MAGHSUDI
Nuclear Medicine and Molecular Imaging 2022;56(5):256-258
The 18F-FDG PET/CT imaging is a non-invasive modality for diagnosis and staging of metastatic melanoma. Venous thromboembolism (VTE) is a common complication of cancers, which needs anticoagulant therapy. Tumor thrombosis (TT), on the other hand, is an infrequent complication of solid malignancies that may need aggressive management. Accurate diagnosis of TT and its differentiation from VTE may change patient management and avoid unnecessary anticoagulation treatment. The objective of this case is to introduce a patient with malignant melanoma presenting with extensive venous tumor thrombi with intense FDG uptake.
2.Prevalence of dynapenic obesity and sarcopenic obesity and their associations with cardiovascular disease risk factors in peritoneal dialysis patients.
Hadi TABIBI ; Atefeh AS'HABI ; Iraj NAJAFI ; Mehdi HEDAYATI
Kidney Research and Clinical Practice 2018;37(4):404-413
BACKGROUND: Dynapenic obesity and sarcopenic obesity increase cardiovascular disease (CVD) and mortality in nonuremic patients. The present study was designed to determine the prevalence of dynapenic obesity and sarcopenic obesity and their associations with CVD risk factors in peritoneal dialysis (PD) patients. METHODS: All eligible PD patients in Tehran peritoneal dialysis centers were included in this cross-sectional study. Skeletal muscle mass and fat mass were assessed using bioelectrical impedance analysis. Muscle strength and physical performance were determined using hand grip strength and a 4-meter walk gait speed test, respectively. In addition, a 5-mL blood sample was obtained from each patient. RESULTS: The prevalence of dynapenic obesity and sarcopenic obesity were 11.4% and 3.8% in PD patients, respectively. Serum high-sensitive C-reactive protein (hs-CRP), soluble intercellular adhesion molecule type 1, triglyceride, total cholesterol, and low-density lipoprotein cholesterol were significantly higher in PD patients with dynapenic obesity than in dynapenic nonobese and nondynapenic nonobese patients. Similarly, serum concentrations of CVD risk factors in PD patients with sarcopenic obesity were higher than in nonsarcopenic nonobese patients, but these differences were statistically significant only for serum hs-CRP and triglyceride. In addition, muscle strength and skeletal muscle mass percentage were negatively associated with markers of inflammation and dyslipidemia, whereas body fat percentage was positively associated with these CVD risk factors. CONCLUSION: This study indicates that although the prevalence of dynapenic obesity and sarcopenic obesity are relatively low in PD patients, these disorders may be associated with CVD risk factors.
Adipose Tissue
;
C-Reactive Protein
;
Cardiovascular Diseases*
;
Cholesterol
;
Cross-Sectional Studies
;
Dicloxacillin*
;
Dyslipidemias
;
Electric Impedance
;
Gait
;
Hand
;
Hand Strength
;
Humans
;
Inflammation
;
Lipoproteins
;
Mortality
;
Muscle Strength
;
Muscle, Skeletal
;
Obesity*
;
Peritoneal Dialysis*
;
Prevalence*
;
Risk Factors*
;
Triglycerides
3. Elevated serum nitric oxide and hydrogen peroxide levels as potential valuable predictors of herpes zoster
Soheila NASIRI ; Reza ROBATI ; Marjan KHAZAN ; Mehdi HEDAYATI ; Seyed RIAHI ; Seyed RIAHI
Asian Pacific Journal of Tropical Medicine 2018;11(6):381-386
Objective: To evaluate the biomarkers of oxidative stress in herpes zoster patients compared with control subjects. Methods: This study compared the nitric oxide (NO), hydrogen peroxide (H