Modeling Low Muscle Mass Screening in Hemodialysis Patients

© 2022 The Author(s). Published by S. Karger AG, Basel..

INTRODUCTION: Computed tomography (CT) can accurately measure muscle mass, which is necessary for diagnosing sarcopenia, even in dialysis patients. However, CT-based screening for such patients is challenging, especially considering the availability of equipment within dialysis facilities. We therefore aimed to develop a bedside prediction model for low muscle mass, defined by the psoas muscle mass index (PMI) from CT measurement.

METHODS: Hemodialysis patients (n = 619) who had undergone abdominal CT screening were divided into the development (n = 441) and validation (n = 178) groups. PMI was manually measured using abdominal CT images to diagnose low muscle mass by two independent investigators. The development group's data were used to create a logistic regression model using 42 items extracted from clinical information as predictive variables; variables were selected using the stepwise method. External validity was examined using the validation group's data, and the area under the curve (AUC), sensitivity, and specificity were calculated.

RESULTS: Of all subjects, 226 (37%) were diagnosed with low muscle mass using PMI. A predictive model for low muscle mass was calculated using ten variables: each grip strength, sex, height, dry weight, primary cause of end-stage renal disease, diastolic blood pressure at start of session, pre-dialysis potassium and albumin level, and dialysis water removal in a session. The development group's adjusted AUC, sensitivity, and specificity were 0.81, 60%, and 87%, respectively. The validation group's adjusted AUC, sensitivity, and specificity were 0.73, 64%, and 82%, respectively.

DISCUSSION/CONCLUSION: Our results facilitate skeletal muscle screening in hemodialysis patients, assisting in sarcopenia prophylaxis and intervention decisions.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:147

Enthalten in:

Nephron - 147(2023), 5 vom: 21., Seite 251-259

Sprache:

Englisch

Beteiligte Personen:

Senzaki, Daiki [VerfasserIn]
Yoshioka, Nobuo [VerfasserIn]
Nagakawa, Osamu [VerfasserIn]
Inayama, Emi [VerfasserIn]
Nakagawa, Takafumi [VerfasserIn]
Takayama, Hidehito [VerfasserIn]
Endo, Toko [VerfasserIn]
Nakajima, Fumitaka [VerfasserIn]
Fukui, Masayoshi [VerfasserIn]
Kijima, Yasuaki [VerfasserIn]
Oyama, Yasuo [VerfasserIn]
Kudo, Risshi [VerfasserIn]
Toyama, Tadashi [VerfasserIn]
Yamada, Yosuke [VerfasserIn]
Tsurusaki, Kiyoshi [VerfasserIn]
Aoyama, Naoki [VerfasserIn]
Matsumura, Takayasu [VerfasserIn]
Yamahara, Hideki [VerfasserIn]
Miyasato, Kenro [VerfasserIn]
Kitamura, Tetsuya [VerfasserIn]
Ikenoue, Tatsuyoshi [VerfasserIn]

Links:

Volltext

Themen:

Hemodialysis
Journal Article
Low muscle mass screening
Research Support, Non-U.S. Gov't
Sarcopenia

Anmerkungen:

Date Completed 29.05.2023

Date Revised 01.06.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1159/000526866

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM347880533