Internal thoracic artery

ABC

Image

Importance of the Internal Thoracic Artery as the Source of Collateral Circulation in CABG Patients with Leriche Syndrome

Pedro Silvio Farsky et al. Marcela Dalla Bernardina Sena Janayna Thaina Rabelato Ana Cláudia Gomes Pereira Petisco Renato Tambelini Arnoni

Abstract

In coronary artery bypass grafting (CABG) the use of the internal thoracic artery (ITA), is a Class I indication for the left anterior descending (LAD) artery.

Atherosclerosis is a systemic disease, and peripheral arterial disease (PAD) is an important complicator of CABG, present in about one-third of the patients with coronary disease. In Leriche Syndrome, ITA can be the source of collateral circulation for arteries below the level of occlusion. Its inadvertent use can lead to serious ischemic complications in the dependent territories.

Read Full Article

ABCIC

Case Report

Analysis of Post-Systolic Shortening, Myocardial Strain, and Arterial Flow to Assess Myocardial Ischemia during Stress Echocardiography

Marilia Esther Benevides de Abreu et al. Renan Abreu Ponte Freire Luana Priscila G. Santos Isadora Sucupira Machado … Tereza Cristina Diógenes Pinheiro Antônio Augusto Guimarães Lima José Sebastião de Abreu

[…]

Read Full Article

ABC

Artigo Original

Ministernotomy in myocardial revascularization preserves postoperative pulmonary function

Solange Guizilini et al. Douglas W. Bolzan Sonia M. Faresin Francisco A. Alves Walter J. Gomes

BACKGROUND: In coronary artery bypass graft (CABG) surgery, the need to perform a midsternotomy has been considered a factor for the decrease in postoperative pulmonary function. OBJECTIVE: To prospectively evaluate early postoperative (PO) pulmonary function in patients submitted to off-pump CABG, comparing the conventional midsternotomy with the ministernotomy approach. METHODS: A total of 18 patients were evaluated and assigned to the two groups: Group Conventional Midsternotomy (CMS, n=10) and Group Ministernotomy (MS, n=8). Spirometric results of the forced vital capacity (FVC) and the Forced Expiratory Volume in one second (FEV1) were obtained on the 1st, 3rd and 5th PO days and the arterial gasometry was obtained before and on the 1st PO day. The pulmonary shunt percentage and the pain score were also assessed. RESULTS: When compared in terms of percentage of the preoperative value, the FVC was higher in the MS group than in the CMS group on the 1st, 3rd and 5th PO days (p<0.001). Similar results were obtained for FEV1. The recovery of the FVC between the 1st and the 5th PO days was higher in the MS than in the CMS group (p=0,043). The PaO2 decreased on the 1st PO day in both groups (p<0.05), with a higher decrease in the CMS group (p=0.002). The shunt increased in the two groups on the 1st PO day (p<0.05); however, it was lower in the MS group (p=0.02). The reported pain score was lower and the duration of the hospital stay was shorter in the MS group. CONCLUSION: Patients submitted to CABG by MS present better preservation and recovery of pulmonary function than those submitted to CMS.

Read Full Article

ABC

Artigo Original

Internal thoracic artery graft (ITAG): patency and functional status at rest and during dobutamine-stress echocardiography

José Sebastião de Abreu et al. Tereza Cristina Pinheiro Diógenes André Luís de Castro Abreu José Erirtônio Façanha Barreto … José Maria Bonfim de Morais Marília Esther Benevides de Abreu Jorge Henrique Azevedo Pinto José Nogueira Paes Júnior

BACKGROUND: The patent internal thoracic artery graft (ITAG) usually has a diastolic fraction (DF) > 50% of the flow. The functional assessment can be evaluated by the coronary reserve index (CRI). OBJECTIVE: The objective was to evaluate the patency and functional status of the ITAG through echocardiography and Doppler. METHODS: Data from sixty-six patients who underwent dobutamine-stress echocardiography (DSE) were prospectively collected and analyzed. Group I (GI) had 49 ITAG without stenosis, Group II (GII), 10 ITAG with significant stenosis (> 50% and 50%, it was observed in 49 ITAG (GI= 40, GII= 8 and GIII= 1) at rest and in 61 ITAG (GI=49, GII=10 and GIII=2) during DSE. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy were respectively, 81%, 86%, 98%, 35% and 82%, and 100%, at rest and 71%, 97%, 100% and 97% in the DSE. The ITAG with DF>50% at rest were patent and the ones with DF1.8 for a good functional status, it was observed in 42 ITAG (39 from GI, 2 from GII and 1 from GIII), determining sensitivity=79%, specificity=85.7%, PPV=94%, NPV=59% and accuracy= 80.9%. The CRI in GI was higher (p= 0.02) than in GII or GIII. CONCLUSION: In our study, the non-invasive assessment of the ITAG was effective to verify the patency and the functional status.

Read Full Article

Importance of the Internal Thoracic Artery as the Source of Collateral Circulation in CABG Patients with Leriche Syndrome

Abstract

Analysis of Post-Systolic Shortening, Myocardial Strain, and Arterial Flow to Assess Myocardial Ischemia during Stress Echocardiography

Ministernotomy in myocardial revascularization preserves postoperative pulmonary function

Internal thoracic artery graft (ITAG): patency and functional status at rest and during dobutamine-stress echocardiography

Electronic Document Format (Vancouver)

Electronic Document Format (ABNT)

Electronic Document Format (APA)

Electronic Document Format (ISO)

Electronic Document Format (Vancouver)

Electronic Document Format (ABNT)

Electronic Document Format (APA)

Electronic Document Format (ISO)

Electronic Document Format (Vancouver)

Electronic Document Format (ABNT)

Electronic Document Format (APA)

Electronic Document Format (ISO)

Electronic Document Format (Vancouver)

Electronic Document Format (ABNT)

Electronic Document Format (APA)

Electronic Document Format (ISO)