Publications by authors named "Kai Ishii"

Article Synopsis
  • The study investigates the relationship between serum albumin (SA) levels and the risk of early postoperative infections in patients undergoing total knee arthroplasty (TKA), particularly focusing on those with hypoalbuminemia (SA < 3.5 g/dL).
  • Data from 490 TKAs were analyzed, and while five patients experienced early infections needing surgery, there were no significant differences in SA levels or related parameters between the infected and non-infected groups.
  • The findings indicate that patients who developed infections had a higher reduction in SA levels around the time of their surgery but no clear link was established between SA levels and the occurrence of infections, suggesting further research is needed on the SA threshold of 3
View Article and Find Full Text PDF

Background: Previous studies have evaluated preoperative serum albumin (SA) for predicting postoperative complications of total knee arthroplasty (TKA). This study aimed to investigate the dynamics of perioperative SA and changes in SA (ΔSA) and identify any influential patient or surgical factors.

Methods: In total, 381 patients (483 knees) undergoing primary TKA were recruited.

View Article and Find Full Text PDF

: Cardiovascular disease (CVD) is a major risk factor for mortality in patients with osteoarthritis, and such comorbidities increase the risk of postoperative complications following total knee arthroplasty (TKA). Arteriosclerosis plays a major role in hemodynamic dysfunction and CVD; however, the postoperative changes in arteriosclerosis following TKA have not been evaluated. Therefore, we assessed the postoperative changes in arteriosclerosis using the cardio-ankle vascular index (CAVI) in patients undergoing TKA, and its relationships with preoperative patient characteristics.

View Article and Find Full Text PDF

Purpose: Cardiovascular disease (CVD) is a major risk factor for mortality in patients with osteoarthritis, and comorbidities increase postoperative complications after total knee arthroplasty (TKA). Arteriosclerosis plays a main role in hemodynamic dysfunction and CVD; however, arteriosclerosis has not been preoperatively evaluated before TKA using the cardio-ankle vascular index (CAVI). In this study, we evaluated the degree of preoperative arteriosclerosis using the CAVI in patients undergoing TKA, as well as its correlations with several preoperative patient factors.

View Article and Find Full Text PDF

Aim: Atrial fibrillation (AF) is a well-known risk factor for heart failure (HF). We sought to develop and externally validate a risk model for new-onset HF admission in patients with AF and those without a history of HF.

Methods And Results: Using two multicentre, prospective, observational AF registries, RAFFINE (2857 patients, derivation cohort) and SAKURA (2516 patients without a history of HF, validation cohort), we developed a risk model by selecting variables with regularized regression and weighing coefficients by Cox regression with the derivation cohort.

View Article and Find Full Text PDF

Introduction: Physical function is expected to improve with an increase in physical activity owing to improvement in knee joint pain after total knee arthroplasty (TKA). This study was performed to evaluate the impact of TKA on arteriosclerosis by measuring the cardio-ankle vascular index (CAVI) before and after surgery.

Materials And Methods: In total, 206 consecutive patients undergoing unilateral TKA were investigated.

View Article and Find Full Text PDF

This cross-sectional study enrolled 202 patients with atrial fibrillation (AF) who had undergone catheter ablation and evaluated the association between high-density lipoprotein (HDL) functionality, cholesterol efflux capacity (CEC) of HDL, and the pathophysiology of left atrial structural remodeling. Participants were divided into two groups, based on their left atrial volume index (LAVI) (< 34 mL/m, n = 60 vs. LAVI ≥ 34 mL/m, n = 142).

View Article and Find Full Text PDF

Background And Aims: Pathophysiological roles of monocytes in atrial fibrillation (AF), particularly for the progression of structural remodeling of the left atrium (LA), remain elusive. This study examined the association between the characteristics of circulating and local monocytes and extent of structural remodeling in LA, gauged by LA size, in AF patients.

Methods: First, 161 AF patients who were referred for catheter ablation were enrolled and divided into two groups according to the median of LA diameter (≤39 mm: normal LA group, >39 mm: enlarged LA group).

View Article and Find Full Text PDF

We present a case of paroxysmal atrioventricular block with atrial pacemaker shift, focusing on the change of P-wave morphology.

View Article and Find Full Text PDF