PMID- 37559223 OWN - NLM STAT- Publisher LR - 20230810 IS - 2211-9132 (Print) IS - 2211-9132 (Linking) DP - 2023 Aug 10 TI - Intrinsic prefrontal functional connectivity according to cognitive impairment in patients with end-stage renal disease. LID - 10.23876/j.krcp.22.291 [doi] AB - BACKGROUND: This study aimed to investigate differences in intrinsic prefrontal functional connectivity according to the presence of cognitive impairment in patients with end-stage renal disease (ESRD) using functional near-infrared spectroscopy (fNIRS). METHODS: We prospectively enrolled 37 patients with ESRD who had been undergoing hemodialysis for more than 6 months and had no history of neurological or psychiatric disorders. All patients with ESRD underwent the Korean version of the Montreal Cognitive Assessment (MoCA-K) to assess cognitive function. The NIRSIT Lite device (OBELAB Inc.) was used to acquire fNIRS data, and the NIRSIT Lite Analysis Tool program was used to process the data and generate a functional connectivity matrix. We obtained functional connectivity measures by applying graph theory to the connectivity matrix using the BRAPH (brain analysis using graph theory) program. RESULTS: Of the 37 patients with ESRD, 23 had cognitive impairment, whereas 14 patients showed no cognitive impairment. Intrinsic prefrontal functional connectivity was significantly different between groups. Network measures of strength, global efficiency, and mean clustering coefficient were lower in ESRD patients with cognitive impairment than in those without cognitive impairment (4.458 vs. 5.129, p = 0.02; 0.397 vs. 0.437, p = 0.03; and 0.316 vs. 0.421, p = 0.003; respectively). There were no significant correlations between MoCA-K scores and clinical characteristics. CONCLUSION: We demonstrated a significant association between cognitive function and intrinsic prefrontal functional connectivity in patients with ESRD. ESRD patients with cognitive impairment have reduced connectivity and segregation in the prefrontal brain network compared to those without cognitive impairment. FAU - Park, Kang Min AU - Park KM AD - Department of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea. FAU - Heo, Chang Min AU - Heo CM AD - Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea. FAU - Lee, Dong Ah AU - Lee DA AD - Department of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea. FAU - Huh, Hyuk AU - Huh H AD - Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea. FAU - Park, Sihyung AU - Park S AD - Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea. FAU - Kim, Yang Wook AU - Kim YW AD - Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea. FAU - Lee, Yoo Jin AU - Lee YJ AD - Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea. FAU - Yoon, Hyeok Jin AU - Yoon HJ AD - YOON's Clinic of Hemodialysis, Busan, Republic of Korea. FAU - Park, Bong Soo AU - Park BS AD - Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea. LA - eng PT - Journal Article DEP - 20230810 PL - Korea (South) TA - Kidney Res Clin Pract JT - Kidney research and clinical practice JID - 101586778 OTO - NOTNLM OT - Chronic kidney failure OT - Cognition OT - Connectome OT - Frontal lobe EDAT- 2023/08/10 06:43 MHDA- 2023/08/10 06:43 CRDT- 2023/08/10 00:34 PHST- 2022/12/20 00:00 [received] PHST- 2023/03/24 00:00 [accepted] PHST- 2023/08/10 06:43 [medline] PHST- 2023/08/10 06:43 [pubmed] PHST- 2023/08/10 00:34 [entrez] AID - j.krcp.22.291 [pii] AID - 10.23876/j.krcp.22.291 [doi] PST - aheadofprint SO - Kidney Res Clin Pract. 2023 Aug 10. doi: 10.23876/j.krcp.22.291.