Relationship of the T-wave Tpeak-Tend interval with conduction system disorders in arterial hypertension.

Autor:	Candia JC; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo.; Department of Health Sciences Research, Sanatorio Metropolitano Fernando de la Mora. Central Department, Paraguay., Centurión OA; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo.; Department of Health Sciences Research, Sanatorio Metropolitano Fernando de la Mora. Central Department, Paraguay., Alderete JF; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo.; Department of Health Sciences Research, Sanatorio Metropolitano Fernando de la Mora. Central Department, Paraguay., Torales JM; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo.; Department of Health Sciences Research, Sanatorio Metropolitano Fernando de la Mora. Central Department, Paraguay., Aquino NJ; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo.; Department of Health Sciences Research, Sanatorio Metropolitano Fernando de la Mora. Central Department, Paraguay., Miño LM; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo.; Department of Health Sciences Research, Sanatorio Metropolitano Fernando de la Mora. Central Department, Paraguay., Scavenius KE; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo.; Department of Health Sciences Research, Sanatorio Metropolitano Fernando de la Mora. Central Department, Paraguay., García LB; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo.; Department of Health Sciences Research, Sanatorio Metropolitano Fernando de la Mora. Central Department, Paraguay., Cáceres C; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo., Sequeira OJ; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo., Chávez CO; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo.; Department of Health Sciences Research, Sanatorio Metropolitano Fernando de la Mora. Central Department, Paraguay., Martínez JE; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo., Lovera OA; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo., Galeano EJ; Department of Cardiology, Clinics Hospital, Universidad Nacional de Asunción, Saint Lorenzo.
Jazyk:	angličtina
Zdroj:	Archivos de cardiologia de Mexico [Arch Cardiol Mex] 2023; Vol. 93 (1), pp. 69-76.
DOI:	10.24875/ACM.21000396
Abstrakt:	Purpose: The Tpeak-Tend interval of the T wave has emerged as a new electrocardiographic marker of increased transmural dispersion of ventricular repolarization. We aimed to determine the presence of cardiac conduction system disorders in patients with systemic arterial hypertension (SAH) who have altered Tpeak-Tend interval of the T wave. Methods: The 67 patients with SAH were divided into two groups. Those with prolonged (≥ 77 ms) Tpeak-Tend intervals, 21 (31%) patients were in the study group. Those with normal (< 77 ms) Tpeak-Tend intervals, 46 (69%) patients were in the control group. Alteration of ventricular repolarization manifested as a prolongation of the Tpeak-Tend interval was detected by computerized electrocardiographic analysis tools. Results: The median value of QRS complex duration was significantly wider in the study group as compared to the control group (110 ± 12 ms vs. 94 ± 8 ms p < 0.001). There was a significantly greater incidence of left anterior hemiblock in the study group (14% vs. 0% p < 0.04). The median value of the QTc interval was significantly greater in the study group (440 ± 26 vs. 422 ± 15 p < 0.01). There was a significantly greater incidence of patients with prolonged QTc interval in the study group (33% vs. 11% p < 0.02). The median value of the Tpeak-Tend interval was significantly greater in the study group (84 ± 5 ms vs. 65 ± 4 ms p < 0.001), as well as, the Tpeak-Tend/QTc ratio in the study group (0.19 ± 0.1 vs. 0.16 ± 0.1 p < 0.001). Conclusion: There is a significantly greater ventricular repolarization disorders and abnormalities of the cardiac conduction system in SAH patients who possess altered Tpeak-Tend interval of the T wave. (Copyright: © 2023 Permanyer.)
Databáze:	MEDLINE
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