Taipei Medical University Institutional Repository:Item 987654321/44600

Taipei Medical University

C

ardiothoracic

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atio

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ssociation

w

ith

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utritional

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tatus

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n

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emodialysis

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atients

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ntroduction

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bjective

The cardiothoracic ratio (CTR) is determined by dividing the maximal horizontal width of the heart by the

horizontal inner width of the rib cage. It’s an easy parameter available from chest

radiographs. The CTR independently correlates with the left ventricular mass (LVM) and nutritional status.

S

ubjects and Methods

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esults and Discussion

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onclusion

Chen CY

_{, Yang SH}

_{, Wu PY}

_{, Yang SH}

1.2.3_{School of Nutrition and Health Sciences, Taipei Medical University} 4_{Nutrition research center, Taipei Medical University Hospital}

To evaluate whether CTR is a good indicator of nutritional status on hemodialysis (HD) patients or not?

All study patients were recruited from the

HD centers at the Taipei Medical University Hospital. This longitudinal observational study included 68 patients. Exclusion criteria were malignancies, obvious infection

disease, hospitalization, surgery or renal transplantation within the three months preceding the investigation. Patients who met the inclusion criteria were classified into 2 groups according to their CTR. And we collected subjects’ anthropometric, biochemical and dietary data.

CTR could be an indicator to evaluate HD patient’s

nutritional status.

Total 68 patients (35 men and 33 women) with a mean HD duration of 46 months were enrolled in this study. Thirty eight of subjects had CTR more than 50%. Table 1 lists the characteristic, anthropometric, biochemical and dietary data.Subjects with CTR more than 50% were significantly elder and lower serum creatinine and hemoglobin (p<0.05). The CTR was positively correlated with age, but negatively correlated with serum

creatinine and hemoglobin (p<0.05).

The serum creatinine levels represent the muscle bulk and reflect the nutritional status in the dialysis patients. A higher serum creatinine level indicates a larger muscle mass and a better nutrition. Studies also showed that HD patients with cardiomegaly (CTR > 50% ) were elder, required more

erythropoietin treatment to meet target hematocrit level.