Search Results
Results 451 - 500 of 1137
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Liu H J - - 2000
A 76-year-old man, who had inoperable hepatocellular carcinoma, had been treated with transcatheter arterial chemoembolization (TACE) 11 times, percutaneous ethanol injection therapy three times and conformal radiotherapy once, all in other hospitals. At this admission, he developed myocutaneous necrosis in the right abdominal wall after TACE, via the collateral of ...
Ricci M - - 2000
In patients in whom the left internal mammary artery (LIMA) has been previously utilized, reoperative grafting of the left anterior descending (LAD) or diagonal coronary arteries can be performed through a left anterior small thoracotomy (LAST) approach, utilizing the subclavian artery as inflow source. In such cases, however, the left ...
Weinschelbaum E E - - 2000
BACKGROUND: The radial artery is being used with increasing frequency instead of the saphenous vein in coronary artery bypass grafts. We analyzed the in-hospital and midterm results in patients undergoing coronary artery bypass surgery in whom a combination of arterial grafts was used, including radial artery and one or both ...
Engelmann M G - - 2000
Non-invasive imaging techniques for the detection of graft patency after multivessel coronary revascularisation may be useful for follow-up after surgery. Forty consecutive asymptomatic patients (38 men, age 59.9+/-1.3 years) who had undergone coronary bypass surgery with at least three grafts were examined by spiral computed tomography or magnetic resonance angiography ...
Bonacchi M - - 2000
BACKGROUND: We report a new technique that consists of a right Y-graft using only skeletonized internal mammary arteries (IMA) for total arterial myocardial revascularization. METHODS: This technique consists of anastomosing the in situ left IMA (LIMA) and right IMA (RIMA) to the left anterior descending and obtuse marginal artery, via ...
Boyd W D - - 2000
BACKGROUND: New technology has enabled surgeons to attempt totally endoscopic coronary artery bypass grafting. Our purpose was to compare three different techniques of totally endoscopic anastomosis using a porcine animal model. METHODS: Porcine hearts were excised and the right coronary artery was dissected free for use as an arterial graft. ...
Cichon R - - 2000
BACKGROUND: A tendency to reduce operative trauma is determining the evolution of cardiac surgical techniques lately. The introduction of robotic-enhanced endoscopic systems enables surgeons to perform arterial revascularization for multivessel disease without sternotomy. METHODS: From May 1999,17 (4 women, 13 men; median age 63+/-7.4 years) patients with multivessel coronary artery ...
Albiero R - - 2000
The increase in the use of the left internal mammary artery (LIMA) as graft of choice to the left anterior descending coronary artery for conventional and minimally invasive coronary artery bypass surgery has led to an increased incidence of LIMA pathologic lesions early after surgery. The lesion, commonly located in ...
Nguyen D Q - - 2000
A severe ostial stenosis of the left internal mammary artery graft was responsible for unstable angina in a patient with a previous coronary artery bypass graft. Successful revascularization of the lesion was achieved with a subclavian artery-to-left internal mammary artery bypass using a saphenous vein conduit. This procedure was performed ...
Amoroso G - - 2000
OBJECTIVE: To study the endothelial function in the left internal thoracic artery after coronary artery bypass surgery and to identify predictors of early dysfunction, we performed a provocative test with acetylcholine in 23 male patients who underwent routine postoperative coronary angiography. METHODS: The change in mean diameter of the proximal ...
Cichon R - - 2000
BACKGROUND: A tendency to reduce the operative trauma seems to be the prominent sign of development in cardiac surgery. The combination of the previously introduced minimally invasive "Dresden Technique" with the robotically enhanced endoscopic system enables further progress in coronary artery surgery. METHODS: From May 1999, 25 patients (19 male, ...
Liu G - - 2000
Using multiple correlation and linear regression approaches, we investigated the association between the amount of mediastinal drainage for the first 24 postoperative hours and clinical variables as well as multiple haematological tests performed at three time points: before anaesthesia induction, 10 minutes after protamine administration and just after skin closure, ...
Abramov D - - 2000
BACKGROUND: The demographics of patients undergoing coronary artery bypass grafting (CABG) have changed over time and may contribute to differing operative mortality and the combination of mortality and morbidity (M + M). In this study, the trends in results are analyzed and causes are suggested. METHODS: Prospectively collected data concerning ...
Nataf P - - 2000
In recent years, the field of minimally invasive cardiac surgery has grown rapidly beginning with the MIDCAB operation and evolving toward totally endoscopic coronary artery bypass grafting (CABG). It promotes the goal of decreasing surgical trauma while maintaining surgical efficacy. For MIDCAB, a limited anterior thoracotomy or mediastotomy have been ...
Cozzi S - - 2000
We describe a new diagnostic catheter specifically designed for selective catheterization of the left internal mammary artery via the ipsilateral radial approach. We used this catheter to assess the patency of the distal mammary-left anterior descending coronary artery anastomosis in 30 consecutive patients early after minimally invasive direct coronary artery ...
Benetti F F Benetti Foundation, Rosario, - - 2000
The premise for adopting minimally invasive cardiac surgery techniques for myocardial revascularization is to reduce the patient's morbidity without compromising the efficacy of conventional coronary artery bypass. However, opening the pleura has been a limitation of using these approaches. We used the xiphoid approach as an alternative to opening the ...
Lamm P - - 2000
BACKGROUND: The damage done to the endothelium during the preparation of a graft used in an aortocoronary procedure is a risk factor for early graft failure. We compared the effect on the endothelium of the mammary arteries when the harvest was done either by the harmonic scalpel (HS) or the ...
Morishita K - - 2000
In minimally invasive direct coronary artery bypass grafting (MIDCAB), the internal thoracic artery (ITA) is harvested under a direct-vision or videothoracoscopic techniques. However, whatever the technique used, dense pleural adhesions hamper ITA harvesting. We describe the case of a patient who underwent MIDCAB 40 years after a pulmonary resection for ...
Sutherland F W - - 2000
BACKGROUND: The internal mammary artery is used widely as a conduit for coronary artery bypass grafting. Most practicing cardiac surgeons are unaware of an aberrant side branch, the lateral costal artery (LCA), that arises proximally. Unligated, this side branch has been held responsible for early recurrence of angina in a ...
Mann T - - 2000
Coronary intervention involving left internal mammary bypass grafts is an increasingly common challenge for the interventionalist. Although successful in a high percentage of patients, the femoral approach may be technically challenging. The shorter, more direct approach from the left radial artery has potential advantages in these cases. The present study ...
Kelly R F - - 2000
Chylothorax is a rare but serious postoperative complication of thoracic surgical procedures. We report the case of a 77-year-old man who underwent a coronary artery bypass procedure using a left internal mammary artery pedicle graft. A permanent pacemaker was required postoperatively. A persistent postoperative chylothorax developed necessitating continuous drainage and ...
Kieso H A - - 2000
We report two patients with acquired fistulas between the internal mammary and pulmonary arteries after coronary bypass surgery. This is a rare complication of bypass surgery and may be a cause of recurrent angina postoperatively due to coronary artery steal. A table of all the cases reported in the literature ...
Mailis A - - 2000
BACKGROUND: The prevalence of intercostal nerve damage associated with coronary artery bypass graft-internal thoracic (mammary) artery surgery is unknown. METHODS: A total of 37 consecutive patients with coronary artery bypass graft surgery (all with left internal thoracic artery graft) who were attending a cardiac-related exercise program underwent a thorough examination. ...
Pevni D - - 2000
Coronary artery bypass grafting (CABG) in patients with severe pectus excavatum is a surgical challenge. A two-stage correction of sternal deformities and cardiac lesions has been described and myocardial revascularization through a left lateral thoracotomy is a valid alternative in urgent situations. We report a one-stage repair of severe pectus ...
Hirai S - - 2000
We describe a patient who underwent minimally invasive direct coronary artery bypass (MIDCAB), who had previously undergone coronary artery bypass grafting (CABG) through a median sternotomy with a left internal mammary artery (LIMA) graft to the left anterior descending artery (LAD) and a right gastroepiploic artery (GEA) graft to the ...
Subramanian V A - - 2000
The major limitations of current minimally invasive direct coronary artery bypass (MIDCAB) techniques are multivessel and distal vessel disease frequently seen in patients with extensive stent restenosis ('full metal jacket syndrome') and reoperative surgery. Two separate minimal access incisions (minithoracotomy, lower partial sternotomy) have been used to bypass two separate ...
Cacoub P - - 2000
The aim of this study was to determine the ability of human mammary artery cells to maintain a metabolic activity by measuring the artery concentration of two vasoactive substances, endothelin-1 (ET-1) and cyclic guanosyl monophosphate (cGMP), and a neurohumoral substance-neuropeptide Y (NPY)-prior to and following cryostorage. Ten distal segments of ...
Vuorisalo S - - 2000
The concentrations of two antibiotics (vancomycin and cefuroxime) in sternal bone during coronary artery bypass surgery were analyzed to examine whether antibiotic penetration is impaired after dissection and harvesting of the left internal mammary artery for grafting. Bone samples (250 mg of cancellous sternal bone from both halves of the ...
Royse A G - - 2000
OBJECTIVE: To compare radial artery (RA) patency with internal mammary artery (IMA) patency for coronary artery bypass surgery in our early experience. METHODS: Symptomatic as well as asymptomatic patients with > or =1 RA coronary graft underwent postoperative angiography. Each anastomosis was considered separately. A string sign referred to a ...
Kollar A - - 2000
A case of heart transplantation with concomitant coronary artery bypass graft is reported. The patient was an alternate transplant list candidate with a history of bilateral below-knee amputation and 2 previous myocardial revascularization procedures. The previously used and patent left internal mammary artery graft was successfully removed and retransplanted from ...
Gurevitch J - - 2000
BACKGROUND: Bilateral internal mammary artery (IMA) grafting is performed to provide complete arterial myocardial revascularization with the intention of decreasing postoperative return of angina and the need for reoperation. We present here technical views of double-skeletonized IMA grafting, and evaluate its clinical outcome. METHODS: Skeletonized IMA is harvested gently with ...
Chung D A - - 2000
Reverse flow in the internal mammary artery coronary graft in the presence of subclavian stenosis is rare. We describe a 67-year-old man who 7 years after coronary artery surgery was admitted with left subclavian artery stenosis and retrograde flow in the pedicled left internal mammary artery graft. Subsequent redo triple ...
Bonatti J - - 2000
It has been shown previously that the internal mammary artery releases more cyclic guanosine monophosphate after stimulation with atrial natriuretic peptide than the saphenous vein, and that C-type natriuretic peptide possesses a cyclic guanosine monophosphate stimulating potential on saphenous vein bypass grafts. The present study was undertaken to investigate intracellular ...
Hirata N - - 2000
Minimally invasive direct coronary artery bypass has the potential to cause an anastomotic failure because of a limited exposure of the operative field and the difficulty of internal thoracic artery harvesting. In the present study, the importance of preoperative marking for an accurate minithoracotomy location and a successful internal thoracic ...
Kiaii B - - 2000
BACKGROUND: Successful endoscopic harvesting of arterial conduits is critical to the performance of totally endoscopic bypass grafting. Recent success with computer-enhanced robotic systems in the performance of endoscopic single vessel coronary artery bypass (ENDOCAB) has paved the way for developing techniques for multivessel ENDOCAB. The Harmonic Scalpel (Ethicon Endo-Surgery, Cincinnati, ...
Kappert U - - 2000
BACKGROUND: The introduction of robotic-enhanced endoscopic instrumentation systems allows the surgeon to perform arterial revascularization for multivessel coronary artery disease without sternotomy. METHODS: From April 1999, 27 patients (6 female, 21 male, median age 63 +/- 8.2 years) suffering from multivessel coronary artery disease were treated surgically using arterial revascularization ...
Harrer J - - 2000
BACKGROUND AND AIMS: The increasing incidence of reoperations in coronary surgery associated with higher perioperative risks is a challenge for refinement of the surgical methods. The aim of the work is to prove the feasibility and satisfactory intermediate results of minimally invasive axillary-coronary artery bypass reconstruction in redo coronary surgery ...
Falk V - - 2000
A new method of endoscopic ultrasonography during endoscopic bypass grafting is described. Using a 7.5 MHz ultrasonic catheter (AcuNav, Acuson, Mountain View, CA) that was introduced through a 5mm port and manipulated by robotically enhanced endoscopic instruments, detection of the internal thoracic artery (ITA) and the left anterior descending (LAD) ...
El-Ansary Doa - - 2000
The internal (thoracic) mammary artery (IMA) is currently the vessel of choice for coronary artery bypass grafting (CABG), due to its long term patency. The purpose of this study was to compare the incidence and nature of musculoskeletal and neurological complications following saphenous vein grafting (SVG) and internal mammary artery ...
White J K - - 2000
BACKGROUND: In spite of advances in the management of bleeding associated with cardiac surgery, hemorrhage remains a troublesome problem, particularly in complex cases and high risk patients. In minimally invasive cardiac surgery, limited exposure and tight quarters may make accurate suturing difficult, and increase the risk of surgical bleeding. A ...
Barboso G - - 2000
When a left anterior descending coronary artery passes over the cardiac apex and presents with 2 stenoses, 1 proximal and 1 distal, the available bypass conduit often is too short to enable both the anastomosis below the distal stenosis and the sequential anastomosis on the arterial segment between the 2 ...
Villareal R P - - 2000
Internal mammary arteries are the grafts of choice for coronary artery bypass because they are generally free of atherosclerosis and they have high patency rates as grafts. There are, however, increasing reports of graft failure due to diffuse or distal narrowing, known as the string phenomenon. From June 1999 to ...
Vassiliades T A TA - - 2000
BACKGROUND: The recent development of off-pump and minimally invasive techniques in coronary artery bypass grafting (CABG) has provided the surgeon with multiple options in performing redo revascularization procedures. METHODS: We retrospectively analyzed our early results in off-pump redo CABG procedures. Between January 1998 and January 2000, we performed 55 off-pump ...
Wong P S - - 1999
This is a case report of an unusual case of a patient with dextrocardia and "situs inversus totalis" who presented with unstable angina. Coronary angiography revealed severe main stem and severe triple vessel coronary artery disease. The patient later underwent successful emergency coronary artery bypass graft surgery. To the authors' ...
Gansera B - - 1999
BACKGROUND: The increasing number of patients of more advanced age undergoing cardiac surgery means the number of those with previous curative (relapse free) mastectomy and irradiation of the chest is also increasing. A higher incidence of postoperative complications such as sternal infection in these patients is considered possible. Furthermore the ...
Deja M A - - 1999
BACKGROUND: The skeletonization of internal thoracic artery is postulated to improve graft length, early blood flow, sternal blood supply, and postoperative respiratory function. Concern exists that skeletonization may injure internal thoracic artery, precluding good results of surgery. Reports on endothelial function of skeletonized internal thoracic artery are lacking. METHODS: A ...
Vranic M - - 1999
The internal mammary artery is the preferred conduit for coronary bypass grafting; however, suboptimal flow through the internal mammary artery is sometimes found during the operation, and the conduit is abandoned. Subclavian artery stenosis, a well-recognized cause of reduced internal mammary artery flow, is easily and effectively treated with endovascular ...
van Nooten G - - 1999
The aim of this study was to assess the need for preconditioning and/or exclusion of competitive flow in minimally invasive coronary bypass grafting procedures (MICAB), to prevent early graft occlusion. Eight mongrel dogs (+/- 25 kg) were operated on under intravenous anaesthesia (sodium thiopenthal 15 mg/kg) and maintained with Halothan ...
Bortolotti U - - 1999
We report a patient in whom coronary artery bypass grafting with the left internal mammary artery to the left anterior descending coronary artery and laser transmyocardial revascularization were simultaneously performed through a left small thoracotomy. The patient recovered uneventfully and 9 months following surgery he is free of angina and ...
Shapira O M - - 1999
BACKGROUND: The superior long-term patency of internal mammary artery coronary bypass grafts compared with venous grafts has been attributed in part to increased endothelium-derived nitric oxide (. NO) production. Interest in the radial artery as an alternative bypass conduit has recently been revived; however, its biological characteristics remain incompletely defined. ...
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