Double-Wire versus Single-Wire Sternal Closure in Obese Patients: a Randomized Prospective Study

2016 ◽  
Vol 65 (04) ◽  
pp. 332-337 ◽  
Author(s):  
Ralf Kuehnel ◽  
Thomas Claus ◽  
Martin Hartrumpf ◽  
Frank Kuepper ◽  
Manfred Pohl ◽  
...  
Keyword(s):  
Positive Impact ◽  
Left Internal Mammary Artery ◽  
Artery Bypass ◽  
Group Versus ◽  
Obese Patients ◽  
Protection Factor ◽  
Single Wire ◽  
Sternal Closure ◽  
Internal Mammary ◽  
Independent Risk Factors

Background Sternal instability after coronary artery bypass grafting (CABG) is a serious complication. Obese patients are at high risk for sternal instability after CABG. This study was conducted to assess the positive impact of double-wire sternal closure on sternal instability. Methods A total of 200 obese patients with a body mass index ≥ 30 kg/m2 undergoing isolated CABG with left internal mammary artery (LIMA) graft were randomly assigned to sternal closure either by eight single wires (n = 100) or by a combination of four double wires and four single wires. Results There was a total of 21 cases with sternal instability: 5 cases (i.e., 5%) in the double-wire group versus 16 cases (16%) in the single-wire group (p = 0.019). Logistic regression analysis showed sternal closure via double wires as an independent protection factor (odds ratio [OR]: 0.276; p = 0.029). Smoking (OR: 5.5; p = 0.006) and postoperative delirium (OR: 3.5; p = 0.033) turned out to be independent risk factors for the development of sternal instability. Conclusion Double-wire sternal closure significantly reduces postoperative sternal instability in obese patients undergoing isolated CABG with LIMA graft.

scholarly journals Iatrogenic Aortocoronary Arteriovenous Fistula following Coronary Artery Bypass Surgery: A Case Report and Complete Review of the Literature

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Jonathan D. Gardner ◽  
William R. Maddox ◽  
Joe B. Calkins
Keyword(s):  
Coronary Artery ◽  
Coronary Artery Bypass ◽  
Internal Mammary Artery ◽  
Left Internal Mammary Artery ◽  
Rare Complication ◽  
Artery Bypass ◽  
Coronary Vein ◽  
Arteriovenous Fistulas ◽  
Asymptomatic Patients ◽  
Internal Mammary

The case of a patient who presented with angina following a coronary artery bypass (CABG) operation during which the left internal mammary artery was inadvertently anastomosed to a cardiac vein is presented. The literature concerning previously reported cases of aortocoronary arteriovenous fistulas (ACAVF) due to inadvertent grafting of a coronary vein is reviewed and the significance of this complication is discussed. ACAVF due to inadvertent grafting of a coronary vein is a rare complication of CABG and may be a more common cause of graft failure than has previously been recognized. Distortion of cardiac anatomy, the presence of epicardial fat, and an intramyocardial course of the artery intended for grafting are predisposing factors. Some patients present with angina pectoris and heart failure whereas others have no symptoms. The diagnostic test of choice is coronary angiography. Cardiac MRI and CT have a limited role due to the smaller size and the more clearly defined course of these fistulas. Asymptomatic patients are simply observed since spontaneous closure of these fistulas is reported. Symptomatic patients can be treated with combined medical management and percutaneous methods.

Clinical Outcomes after Hybrid Coronary Revascularization versus Off-Pump Coronary Artery Bypass

2009 ◽  
Vol 4 (6) ◽  
pp. 299-306 ◽  
Author(s):  
Thomas A. Vassiliades ◽  
Patrick D. Kilgo ◽  
John S. Douglas ◽  
Vasilis C. Babaliaros ◽  
Peter C. Block ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Left Internal Mammary Artery ◽  
Coronary Revascularization ◽  
Artery Bypass ◽  
Coronary Intervention ◽  
Off Pump ◽  
Internal Mammary ◽  
Hybrid Coronary Revascularization ◽  
Pump Coronary Artery Bypass ◽  
Hybrid Group

Objective Hybrid coronary revascularization is offered as an alternative strategy for patients with multivessel coronary artery disease (CAD). We present our experience and provide a comparative analysis to off-pump coronary artery bypass grafting (OPCAB). Methods Ninety-one patients with multivessel CAD underwent minimally invasive left internal mammary artery to left anterior descending grafting in combination with percutaneous coronary intervention of nonleft anterior descending targets (HYBRID). The primary end point of this study was major adverse cardiac and cerebrovascular events (MACCE), defined as death, stroke, and nonfatal myocardial infarction. MACCE in the HYBRID group were compared with 4175 contemporaneously performed OPCAB operations by logistic (30-day outcomes) and Cox proportional hazards (long-term survival) regression methods. Propensity scoring was used to adjust for potential selection bias. Results The 30-day MACCE (death/stroke/nonfatal myocardial infarction) rate was 1.1% for the HYBRID group (0%/0%/1.1%) and 3.0% for the OPCAB group (1.8%/1.1%/0.5%) (odds ratio = 0.47, P = 0.48). Angiographic left internal mammary artery evaluation was obtained in 95.6% of patients (87 of 91) revealing FitzGibbon A patency in 98.0% (96 of 98). The reintervention rate at 1 year for the HYBRID group was 5.5% (5 of 91) and was limited to repeat percutaneous coronary intervention. Three-year survival was statistically similar for the two groups (hazard ratio = 0.44, P = 0.18, see Kaplan-Meier figure). Conclusions Hybrid coronary revascularization may be noninferior to OPCAB with respect to early MACCE and 3-year survival in the treatment of multivessel CAD.

MINI OPCAB Operation: Surgical Technique

2021 ◽  
Author(s):  
Federico Benetti ◽  
Natalia Scialacomo ◽  
Gustavo Mazzolino
Keyword(s):  
Surgical Technique ◽  
Large Scale ◽  
Left Internal Mammary Artery ◽  
Artery Bypass ◽  
Coronary Bypass ◽  
Off Pump ◽  
Internal Mammary ◽  
Hybrid Revascularization ◽  
Pump Coronary Artery Bypass ◽  
The Right

Introduction: We describe how to perform left internal mammary artery (LIMA) bypass to the left anterior descending (LAD) artery, the so-called MINI Off-pump Coronary Artery Bypass (MINI OPCAB). Materials and Methods: We included patients with a demonstrated predominant ischemia related to the LAD territory. Of 70 patients who were operated upon at the Benetti Foundation, 10 received hybrid revascularization. Surgical Technique: The patient is prepared as for a standard coronary bypass operation through sternotomy. The sternum is opened to the 3rd or 4th intercostal space depending on the anatomy, and a retractor is put in place. The left mammary artery is generally dissected to about 8 cm and isolated without the veins. Importantly, the angle of the superior part, where the mammary artery is attached to the sternum, needs to be below 20% to avoid any potential kinking. The pericardium is cleaned to identify the area of the pulmonary artery. The pericardium is opened to the apex and towards the right to around 5 to 6 cm initially. In most cases, the area of the LAD can be seen and the potential area of the anastomosis is defined. The patient is heparinized and the LAD is occluded with 5-0 Proline. A mechanical stabilizer is put in place and the anastomosis is performed. When the bypass is finished, and before sutures are tied, the stitches of 5-0 polypropylene around the artery are released, along with the clamp of the mammary artery; the anastomosis is then tied. The mechanical stabilizer is removed, the stitches of the pericardium are released and the flow of the graft is measured, while ensuring that there is no kinking. If the flow and Pulsatility and Resistance (PR) are acceptable, the mammary is fixed with 2 stitches of 7-0 polypropylene on both sides around 1 cm from the anastomosis. The heparin is reverted with protamine and a drain is put in place, while taking care to avoid any chance of touching the mammary artery or the anastomosis. The sternum is closed with 1 or 2 wires. Results: Operative mortality in this series was 0%; one patient was converted to sternotomy off-pump (1.4%). None of the grafts were revised after measurement with a Medistim system (Medistim ASA, Oslo, Norway). Fifty five patients (79%) were extubated in the operating room The average hospitalization stay was 60 hours (SD 17, 95% CI). Sixteen patients who underwent the LIMA-to-LAD procedure were restudied, with 100% patency. At 144 months, 82% of the patients were alive and 68% were asymptomatic. Conclusion: Additional clinical experience is required to be able to reproduce this operation on a large scale and expand the MINI OPCAB operation in hybrid revascularization.

scholarly journals Refractory Angina Secondary to Large Unligated Side Branch of Internal Mammary Artery

2019 ◽  
Vol 14 ◽  
Author(s):  
Zachary Oman ◽  
Lucas Gu ◽  
Nauman Khalid ◽  
Rahil Rafeedheen ◽  
Hassan Alkhawam ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Internal Mammary Artery ◽  
Left Internal Mammary Artery ◽  
Artery Bypass ◽  
Medication Management ◽  
Side Branch ◽  
Current Data ◽  
Refractory Angina ◽  
Common Diagnosis ◽  
Internal Mammary

Coronary artery disease (CAD) has become a common diagnosis. Managing the symptoms of CAD continues to be an ongoing dilemma requiring optimal medication management or potential revascularization with either percutaneous coronary interventions or coronary artery bypass grafting (CABG). We present a case of debilitating refractory angina in a patient with severe CAD after optimal medical therapy and CABG secondary to coronary steal phenomenon via the left internal mammary artery conduit supplying a large unligated side branch to the internal chest wall. While current data are inconclusive on this phenomenon, our patient had complete resolution of angina following coil embolization of unligated side branch of the internal mammary artery.   

scholarly journals On pump harvesting of Left Internal Mammary Artery (LIMA) in unstable patients undergoing coronary artery bypass grafting (CABG) is a safe operative strategy: A pilot study

2019 ◽  
Vol 35 (3) ◽  
Author(s):  
Muhammad Sher-i-Murtaza ◽  
Mirza Ahmad Raza Baig
Keyword(s):  
Cardiopulmonary Bypass ◽  
Coronary Artery ◽  
Coronary Artery Bypass ◽  
Internal Mammary Artery ◽  
Left Internal Mammary Artery ◽  
Artery Bypass ◽  
Hemodynamic Instability ◽  
Bypass Grafting ◽  
Operative Strategy ◽  
Internal Mammary

Objective: To evaluate the clinical safety of left internal mammary artery (LIMA) harvesting in hemodynamically unstable patients after establishing cardiopulmonary bypass (CPB) in isolated coronary artery bypass graft (CABG) surgery. Methods: The prospective observational study was conducted at Chaudhry Pervaiz Elahi Institute of Cardiology, Multan, Pakistan, from December 2016 to August 2018. All patients undergoing isolated CABG surgery in which LIMA conduit was harvested after establishing cardiopulmonary bypass because of hemodynamic instability at induction of anaesthesia or during surgery were included in the study. Preoperative, operative and postoperative characteristics of the patients were recorded. Data was analyzed using SPSS 19. Results: In Forty nine patients including 39 male and 10 female, early CPB had to be established because of hemodynamic instability and afterwards LIMA was harvested. Out of 49, 30 patients presented with CCS class III angina. 37 (75.5%) patients were scheduled on elective coronary surgery waiting list. There were 39 (79.59%) patients who weaned off bypass on mild inotropic support and 4 (8.16%) patients needed IABP support. All patients had multi-vessel coronary artery disease. Mean number of grafts were 3.428±0.577, CPB time was 110.59±25.594 and hospital stay was 5.367±1.424. Conclusions: The study showed that LIMA can be safely harvested in unstable patients after establishing extracorporeal circulation and by using this operative strategy in patients who need urgent or emergent surgical coronary revascularization LIMA can be safely used as a conduit. doi: https://doi.org/10.12669/pjms.35.3.988 How to cite this:Sher-i-Murtaza M, Baig MAR. On pump harvesting of Left Internal Mammary Artery (LIMA) in unstable patients undergoing coronary artery bypass grafting (CABG) is a safe operative strategy: A pilot study. Pak J Med Sci. 2019;35(3):---------.  doi: https://doi.org/10.12669/pjms.35.3.988 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Can the Left Subclavian Artery be Safely Covered during Endovascular Repair of the Descending Thoracic Aorta?

2008 ◽  
Vol 3 (3) ◽  
pp. 147-150 ◽  
Author(s):  
Ourania Preventza ◽  
Grayson H. Wheatley ◽  
James Williams ◽  
Hannan Chaugle ◽  
Kakra Hughes ◽  
...  
Keyword(s):  
Thoracic Aorta ◽  
Subclavian Artery ◽  
Endovascular Repair ◽  
Left Subclavian Artery ◽  
Left Internal Mammary Artery ◽  
Artery Bypass ◽  
Bypass Graft ◽  
Descending Thoracic Aorta ◽  
Complete Coverage ◽  
Internal Mammary

Objective Routine preoperative carotid-subclavian bypass or transposition is frequently recommended in patients undergoing endovascular repair of the descending thoracic aorta (DTA). We reviewed our comprehensive thoracic endografting experience with regards to coverage of the left subclavian artery (LSA) to assess whether mandatory preoperative carotid-subclavian bypass or transposition is necessary. Methods Between February 2000 and November 2005, 255 patients were successfully treated with an endoluminal graft (ELG) to the DTA. Indications for intervention included atherosclerotic aneurysms (109/255, 42.7%), acute and chronic dissections (75/255, 29.4%), miscellaneous (41/255, 16.1%), and penetrating aortic ulcers (30/255, 11.8%). There were 151 males (151/255, 59.2%) and 104 females (104/255, 40.8%) with a mean age of 71 years (range, 23–91 years). Results The LSA was completely covered with an ELG in 71 patients (71/255, 27.8%) and partially covered in 47 patients (47/255, 18.4%). In patients who had complete coverage of the LSA, 30 patients (30/71, 42.3%) had acute or chronic Type B dissections, 26 patients (26/71, 36.6%) had aneurysms, 11 patients (11/71, 15.5%) had miscellaneous aortic pathologies, and 4 patients (4/71, 5.6%) had pseudoaneurysms associated with prior coarctation repair. Fifteen patients (15/255, 5.9%) underwent preoperative carotid-subclavian bypass or transposition and subsequently underwent complete coverage of the LSA with an ELG. One patient (1/56, 1.8%) with complete coverage of the LSA required elective postoperative carotid-subclavian bypass secondary to left arm claudication. Conclusions Routine preoperative carotid-subclavian bypass is not necessary, except in select patients with a patent left internal mammary artery to the left anterior descending artery bypass graft or contralateral vertebral artery disease.

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