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22 May 2024: Clinical Research

Incidence, Risk Factors, and Outcomes of Left Atrial Enlargement in Patients Requiring Right Ventricular Pacing: A Retrospective Study of 461 Cases from 2012 to 2020

Wei-Chieh Lee 123ABCDEF , Wei-Ting Chang 123CD , Hsiu-Yu Fang 45B , Huang-Chung Chen 4B , Mien-Cheng Chen 4EF* , Ping-Yen Liu 16EF*

DOI: 10.12659/MSM.944114

Med Sci Monit 2024; 30:e944114

Table 2 Baseline and follow-up echocardiographic parameters between patients without and with significant LAE.

Without significant LAEWith significant LAEP value
36596
 LA dimension (mm)35.2±3.731.1±4.5
 LVEF (%)69.5±8.469.1±10.10.715
 LVESV (mL)32.6±15.229.4±13.50.064
 LVEDV (mL)107.7±32.799.1±33.00.022
 MR grade
  No or trivial MR (%)159 (43.6)49 (51.0)0.206
  Mild MR (%)206 (56.4)47 (49.0)0.206
 LA dimension (mm)35.6±5.041.8±5.8
 LVEF (%)61.4±13.457.9±12.80.022
  PICM (EF ≤50%) (%)73 (20.0)23 (24.0)0.399
 LVESV (mL)48.3±15.149.4±19.60.620
 LVEDV (mL)116.0±43.4113.5±40.60.774
 MR grade
  No and trivial (%)118 (32.6)19 (19.8)0.015
  Mild (%)211 (57.8)56 (58.3)0.926
  Moderate to severe (%)36 (9.9)21 (21.9)0.003
3.0 (2.6–3.3)4.3 (3.3–5.7)0.002
1.0 (0–1.7)10.0 (9.0–11.0)
2.7 (0–4.9)32.3 (30.0–35.5)
0.2 (0–0.4)2.3 (1.9–3.0)
181 (49.6)60 (62.5)0.029
Data are expressed as mean (standard deviation) or median (interquartile range) or as number (percentage). LAE – left atrial enlargement; LVEF – left ventricular ejection fraction; LVESV – left ventricular end systolic volume; LVEDV – left ventricular end diastolic volume; MR – mitral regurgitation; PICM – pacing-induced cardiomyopathy.

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750