Archivos del Instituto de Cardiologia de Mexico最新文献_第8页

[A system for non-invasive measurement of arterial pulse velocity in different vascular territories]. [一种无创测量不同血管区域动脉脉搏速度的系统]。

Archivos del Instituto de Cardiologia de Mexico Pub Date : 1999-07-01

O Infante, G Sánchez-Torres, R Martínez-Memije, P Flores-Chávez, G Sánchez-Miranda

{"title":"[A system for non-invasive measurement of arterial pulse velocity in different vascular territories].","authors":"O Infante, G Sánchez-Torres, R Martínez-Memije, P Flores-Chávez, G Sánchez-Miranda","doi":"","DOIUrl":"","url":null,"abstract":"Blood pulse wave velocity (PWV) is a known index of arterial rigidity and its measurement has proved its usefulness in the study of some cardiovascular pathologies. In this study we describe the design and implementation of a system for noninvasive PWV determination in the aorto-braqui-humero-radial (A-->h), aorto-ileo-femoro-pedial (A-->f) and aorto-carotid (A-->c) regions. This system was examined with 36 normotensives (NT) and 34 hypertensives (HT) patients with (LVH, n = 20) and without (WLVH, n = 14) left ventricular hypertrofy. The equipment consist of a personal computer with an analog to digital converter and hardware and software items adapted to take simultaneously the electrocardiogram (ECG), two photopletismographic pulses and one oscilometric pulse. The Q-pP interval (time between a Q ECG wave and distal blood pulse) and the distance to the register sites are taken into account to calculate the beginning of cardiac prexpulsive period (time zero of pulse trip) which allow the determination of the PWV (in meters/second) from the aortic root to the distal point of the via. PWV was significant higher (p < 0.001) in HT vs. NT (A-->h: 9.3 +/- 2.6 vs. 7.2 +/- 0.8, A-->c: 9.5 +/- 2.8 vs. 6.0 +/- 1.9 and A-->f: 9.5 +/- 1.8 vs. 7.2 +/- 0.9) in each evaluated arterial region. Same thing occurred in cases with LVH vs. WLVH (A-->h: 10.5 +/- 1.6 vs. 8.0 +/- 1.9, A-->c: 10.2 +/- 1.9 vs. 8.0 +/- 1.9 and A-->f: 10.5 +/- 2.0 vs. 8.6 +/- 1.2) (p < 0.025). This is consistent with the relationship more pressure [symbol: see text] more rigidity and with other reports. This method may have clinical application.","PeriodicalId":75556,"journal":{"name":"Archivos del Instituto de Cardiologia de Mexico","volume":"69 4","pages":"330-7"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21413584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[The problem of sudden cardiac death. II. Focus on the actual problem]. 心脏性猝死的问题2关注实际问题]。

Archivos del Instituto de Cardiologia de Mexico Pub Date : 1999-07-01

P Iturralde

引用次数: 0

[Regression of acute Chagas cardiopathy in an infant with a suspected transfusion infection]. [1例疑似输血感染的婴儿急性恰加斯病的消退]。

Archivos del Instituto de Cardiologia de Mexico Pub Date : 1999-07-01

H Gónzalez-Zambrano, J E Amador Mena, C B Delgadillo Jaime

引用次数: 0

[Polymorphism of apolipoprotein E and its association with cardiovascular disease]. 载脂蛋白E多态性及其与心血管疾病的关系

Archivos del Instituto de Cardiologia de Mexico Pub Date : 1999-07-01

R Gamboa, G Hernández-Pacheco, R Hesiquio, J Zúñiga, J Granados, G Vargas-Alarcón

引用次数: 0

[Protective effect of dantrolene in post-ischemic reperfusion myocardial damage]. 丹曲林对缺血再灌注后心肌损伤的保护作用。

Archivos del Instituto de Cardiologia de Mexico Pub Date : 1999-07-01

E O Balam Ortiz, K Carvajal, D Cruz

引用次数: 0

[Neurocardiogenic syncope in children]. [儿童神经心源性晕厥]。

Archivos del Instituto de Cardiologia de Mexico Pub Date : 1999-07-01

V M Velasco, F Rosas, J F López, G Carrillo, G Cassalett, S Slotkus

引用次数: 0

[Pulmonary valvuloplasty. Long term results at the Centro Medico la Raza]. (肺动脉瓣膜成形术。拉扎医疗中心的长期研究结果。

Archivos del Instituto de Cardiologia de Mexico Pub Date : 1999-07-01

J L Lázaro Castillo, J Munayer Calderón, T Aldana Pérez, R San Luis Miranda, G Maza Juárez, H Ramírez Reyes, L Roberto Quintero, L Arias Monroy, A Campos Gómez

{"title":"[Pulmonary valvuloplasty. Long term results at the Centro Medico la Raza].","authors":"J L Lázaro Castillo, J Munayer Calderón, T Aldana Pérez, R San Luis Miranda, G Maza Juárez, H Ramírez Reyes, L Roberto Quintero, L Arias Monroy, A Campos Gómez","doi":"","DOIUrl":"","url":null,"abstract":"The purpose of this study was to evaluate the immediate and long term results of pulmonary valve ballon dilation, and to determine the prognostic factors of failure in 109 patients (60 female and 49 male), aged 7.04 +/- 8.4 years. Seventy two patients (66.1%) had isolated valvular stenosis and 33.9% presented associated lesions. Peak systolic pressure gradient across the pulmonary valve decreased from 89.53 +/- 37.23 to 20.8 +/- 19.41 mmHg (p < 0.0001) after valvuloplasty. Forty three patients developed reactive infundibular stenosis after valvuloplasty with a systolic gradient of 19.65 +/- 35.64 mmHg. At a mean period of 8 years of follow-up the pressure gradient was 20.75 +/- 14.32 (p < 0.001). Valvuloplasty was successful in 86.2% of the cases with a global mortality of 1.9%, minor complications in 15.2%, and a failure rate of 13.8%. At follow-up restenosis developed in 6.7%. The comparative analysis between the groups of success and failure yield as significant risk factors for failure an age younger than 3.5 years and a pulmonary valve with displastic (p < 0.05) or combined morphology (p < 0.05). This group had also more complications and higher systolic gradients and right ventricular pressures post-dilation (p < 0.05). Pulmonary valvuloplasty is a safe and effective procedure for the treatment of pulmonary valve stenosis with a good immediate and long-term results, and is now considered the treatment of choice.","PeriodicalId":75556,"journal":{"name":"Archivos del Instituto de Cardiologia de Mexico","volume":"69 4","pages":"338-43"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21413697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Indications, technique, results and clinical impact of reocclusion procedures for residual shunts after transcatheter closure of the patent ductus arteriosus. 经导管动脉导管未闭术后残余分流的适应症、技术、结果及临床影响。

Archivos del Instituto de Cardiologia de Mexico Pub Date : 1999-07-01

C A Pedra, C A Esteves, S R Pedra, S L Braga, J E Sousa, V F Fontes

{"title":"Indications, technique, results and clinical impact of reocclusion procedures for residual shunts after transcatheter closure of the patent ductus arteriosus.","authors":"C A Pedra, C A Esteves, S R Pedra, S L Braga, J E Sousa, V F Fontes","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: To assess the results of reocclusion procedures for late residual shunts after transcatheter closure of the patent ductus arteriosus.Material and methods: Nineteen patients underwent reocclusion procedures either with Rashkind technique (2 patients) or with coils. Mean age was 96.5 months and mean interval between the initial and the additional procedure was 15.7 months. In 5 patients, the duct was balloon-dilated prior to occlusion.Results: In 3 patients the procedure was unsuccessful because it was impossible to cross the duct using either a guide wire or a catheter. Immediate or late complete occlusion occurred in 13 patients. Two patients required a third procedure for complete closure. One patient developed severe intravascular hemolysis after coil implantation and was sent to surgery. The rate of final late residual shunting decreased from 17.1% to 6.6% (5/76) in the umbrella group and from 15.8% to 1.8% (1/56) in the coil group.Conclusions: Reocclusion procedures are indicated after one year of persistent shunting following the primary procedure. They are generally effective and reduce significantly the rate of late residual shunting. In patients with tiny shunts, the duct may need to be dilated. Coils are preferred because of their low cost.","PeriodicalId":75556,"journal":{"name":"Archivos del Instituto de Cardiologia de Mexico","volume":"69 4","pages":"320-9"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21413700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[The problem of sudden cardiac death. I]. 心脏性猝死的问题我]。

Archivos del Instituto de Cardiologia de Mexico Pub Date : 1999-07-01

A de Micheli

引用次数: 0

[Renaissance of trans-septal catheterization]. [经间隔导尿术的复兴]。

Archivos del Instituto de Cardiologia de Mexico Pub Date : 1999-07-01

J A Remón Varela, M A Martínez-Ríos

引用次数: 0