Prolonged P Wave Peak Time May Be a Sign of LV Diastolic Dysfunction in the Coronary Slow Flow Phenomenon

Table 5

Multivariable linear regression analysis.

Variables		PWPT in lead D2			PWPT in lead V1
	β coefficient	(95% CI)	value	β coefficient	(95% CI)	value
Mean TFC	0.33	0.44–1.33	<0.001	0.29	0.39–1.59	0.01
E/e	0.23	0.25–1.85	0.01	0.21	0.11–2.33	0.03
EF	−0.14	−1.04–−0.053	0.03	−0.04	−0.91–0.43	0.48
LAAPD	0.07	−0.74–0.24	0.33	−0.02	−0.78–0.58	0.77
Age	0.08	−0.48–0.24	0.18	0.13	−0.01–0.38	0.06
Gender, male	0.09	−0.60–4.70	0.13	−0.08	−5.81–1.35	0.22
Heart rate	−0.13	−0.29–−0.01	0.03	−0.05	−0.27–−0.10	0.36
Beta-blocker	−0.03	−4.23–2.60	0.64	−0.02	−5.55–3.80	0.79
Non-DHD CCB	−0.03	−4.71–2.78	0.62	−0.02	−5.03–3.60	0.70

Bold values are statistically significant (P < 0.05). TFC, TIMI frame count; PWPT, wave peak time; EF, ejection fraction; LAAPD, left atrial anterior-posterior diameter; non-DHD CCB, nondihydropyridine calcium channel blocker.