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21.
Different Trends of Changes in Heart Rate Variability in Patients with Anterior and Inferior Acute Myocardial Infarction 总被引:2,自引:0,他引:2
MARIA VITTORIA PITZALIS FILIPPO MASTROPASQUA FRANCESCO MASSARI REA PASSANTINO GIOVANNI LUZZI LUANA LIGURGO ROBERTO COLOMBO MARIA GIUSEPPINA BIASCO PAOLO RIZZON 《Pacing and clinical electrophysiology : PACE》1998,21(6):1230-1238
Modifications in heart rate variability (HRV) parameters occur after acute myocardial infarction. The aim of this study was to evaluate the trend of HRV change during the acute phase and the first month after myocardial infarction, and establish whether they were affected by the anterior or inferior location of the infarction. The time-domain HRV measures of 59 patients with a first uncomplicated acute myocardial infarction were computed from 24-hour ECG recordings made on days 1, 2, 10, and 28 after hospital admission. At day 1, the mean RR cycle length (NN), the standard deviation of the NN intervals (SDNN), and the root mean square successive difference of NN intervals (RMSSD) were lower in the patients with anterior myocardial infarction. Although the parameters were similar in all of the patients at day 28, their behavior over time was different (P = 0.01): the SDNN in the patients with inferior myocardial infarction had decreased to the values found in anterior myocardial infarction patients by day 2 but, at day 10, both NN and SDNN tended to recover in both groups; RMSSD had diminished in both groups by day 2, but at day 10, had increased in the patients with anterior, but not in those with inferior myocardial infarction. These findings suggest that (1) in the very early phase of myocardial infarction, HRV is different in the two locations, (2) during the first hours of myocardial infarction patients with inferior location showed a greater vagal activity than patients with anterior location that became lower at day 10, and (3) the recovery of HRV is an early phenomenon in both groups, being already evident by the second week after myocardial infarction. 相似文献
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PAOLO IUS M.D. LORIS SALVADOR M.D. FRANCESCO ROCCO M.D. ANTONIA DA ROS M.D. PAOLA BELLI M.D. PAOLO ROSI M.D. CARLO VALFRE' M.D. 《Echocardiography (Mount Kisco, N.Y.)》1994,11(6):561-569
The persistence of false lumen after surgical repair of aortic dissection is frequent. This event has a negative impact on the prognosis and is secondary to the persistence of unrepaired entry sites and of dissected major aortic branches. We describe three cases in which visualization of a dissected celiac trunk with an anomalous flow pattern was possible with transesoghageal echocardiography. Two of these cases died in the early postoperative period and the echo findings were confirmed at necropsy. We suggest that visualization of anomalous pattern flow in the celiac trunk is of prognostic relevance because it plays a major role in mantaining the false lumen persistence and, therefore, should be part of the routine examination after surgical repair of aortic dissection. 相似文献
23.
Device Longevity in a Contemporary Cohort of ICD/CRT‐D Patients Undergoing Device Replacement
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FRANCESCO ZANON M.D. F.E.S.C. F.H.R.S. CRISTIAN MARTIGNANI M.D. ERNESTO AMMENDOLA M.D. ENDRJ MENARDI M.D. MARIA LUCIA NARDUCCI M.D. Ph.D. PAOLO DE FILIPPO M.D. MATTEO SANTAMARIA M.D. ANDREA CAMPANA M.D. GIUSEPPE STABILE M.D. DOMENICO ROSARIO POTENZA M.D. GIANNI PASTORE M.D. MATTEO IORI M.D. CONCETTO LA ROSA M.D. MAURO BIFFI M.D. 《Journal of cardiovascular electrophysiology》2016,27(7):840-845
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ESTER MELES M.D. CLAUDIO CARBONE M.D. STEFANO MAGGIOLINI M.D. PAOLO MORETTI M.D. CATERINA C. DE CARLINI M.D. GAETANO GENTILE M.D. TOMASO GNECCHI‐RUSCONE M.D. 《Journal of cardiovascular electrophysiology》2015,26(5):565-568
Ivabradine is indicated in cardiac failure and ischemia to reduce sinus rate by inhibition of the pacemaker I(f) current in sinoatrial node. We report a case of an 18‐year‐old woman with left atrial tachyarrhythmia resistant to several antiarrhythmic drugs and to electric cardioversion who responded only to ivabradine, which significantly reduced heart rate without abolishing the arrhythmia itself. An ectopic focus in the ostium of left pulmonary veins was found and the patient was successfully ablated. We suggest that ivabradine might be therefore useful in the treatment of supraventricular tachyarrhythmias due to an enhanced automaticity. 相似文献
25.
Shock Reduction With Multiple Bursts of Antitachycardia Pacing Therapies to Treat Fast Ventricular Tachyarrhythmias in Patients With Implantable Cardioverter Defibrillators: A Multicenter Study
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IGNASI ANGUERA M.D. PAOLO DALLAGLIO M.D. JOSE MARTÍNEZ‐FERRER M.D. ANÍBAL RODRÍGUEZ M.D. JAVIER ALZUETA M.D. JULIÁN PÉREZ‐VILLACASTÍN M.D. JOSÉ MANUEL PORRES M.D. XAVIER VIÑOLAS M.D. ADOLFO FONTENLA M.D. IGNACIO FERNÁNDEZ‐LOZANO M.D. ARCADIO GARCÍA‐ALBEROLA M.D. XAVIER SABATÉ M.D. 《Journal of cardiovascular electrophysiology》2015,26(7):774-782
26.
Impact of a Chronic Total Occlusion in an Infarct‐Related Artery on the Long‐Term Outcome of Ventricular Tachycardia Ablation
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ANDREA DI MARCO M.D. GABRIELE PAGLINO M.D. TERESA OLORIZ M.D. GIUSEPPE MACCABELLI M.D. FRANCESCA BARATTO M.D. PASQUALE VERGARA M.D. Ph.D. CATERINA BISCEGLIA M.D. Ph.D. IGNASI ANGUERA M.D. Ph.D. SIMONE SALA M.D. NICOLETA SORA M.D. PAOLO DALLAGLIO M.D. ALESSANDRA MARZI M.D. NICOLA TREVISI M.D. PATRIZIO MAZZONE M.D. PAOLO DELLA BELLA M.D. 《Journal of cardiovascular electrophysiology》2015,26(5):532-539
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During the preparation of the NK-2 selective tachykinin antagonist MEN 10208 (Thr-Asp-Tyr-D-Trp-Val-D-Trp-D-Trp-Arg-NH2) and its analogs by the solid-phase method employing the Boc strategy routinely used in our laboratory, we encountered difficulties in the coupling of hydrophobic amino acids D-Trp and Val. To study the coupling problems several syntheses of MEN 10208 and analogs were carried out with different activation strategies. These syntheses yielded considerable amounts of deletion sequences even though a negative Kaiser test was obtained after each coupling. Inaccessibility of the free amino group of the growing peptide due to steric hindrance of the hydrophobic residues during coupling, and for the ninhydrin complex during the Kaiser test, may account, at least in part, for the unsatisfactory synthetics results and for the false-negative ninhydrin tests. Repetition of each synthesis with the Fmoc strategy on a newly developed DOD resin for peptide amides using the DCC/HOBt chemistry gave superior results in terms of the yield and purity of the crude peptides. Therefore, the Fmoc strategy appears to offer advantages over the Boc method for the preparation of these peptides containing hydrophobic amino acids. 相似文献
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