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Biomedical subjects

R Fortuny

Publications and source records attributed to R Fortuny.

14 recordsLinked to original sources

[Clinical results of double versus single mammary artery myocardiac revascularization: 15 years of follow-up].

INTRODUCTION: Use of the left internal mammary artery to bypass the left anterior descending coronary artery reduces cardiac events and increases survival. However, there is some controversy as to the benefits of using both mammary arteries. OBJECTIVES: To assess the long-term outcome of the use of both mammary arteries in comparison with the use of only one. PATIENTS AND METHOD: A retrospective cohort study with a mean follow-up of 9.0 +/- 4.2 years was performed including 108 patients consecutively revascularized using both mammary arteries (II) and 108 patients randomly chosen in whom one mammary artery (I) was used for this purpose. RESULTS: Both groups were similar. There were no differences between the groups in operative morbidity or mortality. The survival at 10 years was similar (II: 84.61 +/- 4%; I: 85.18 +/- 3.8%), whereas recurrence of angina (II: 29.63 +/- 5.3%; I: 47.55 +/- 5.6%) (p = 0.012), the requirement for percutaneous angioplasty (II: 3.98 +/- 2%; I: 12.99 +/- 4.1%) (p = 0.009) and cardiologic events (II: 33.48 +/- 5.5%; I: 48.48 +/- 5.5%)(p = 0.022) were all lower in the group in which both mammary arteries were used. In the multivariate analysis, the use of both mammary arteries was an independent protective factor against angina recurrence (RR = 0.55), angioplasty (RR = 0.18) and cardiologic event (RR = 0.60). CONCLUSIONS: The use of both mammary arteries for revascularization does not increase operative morbidity. Since this procedure acts as an independent factor against angina recurrence, angioplasty and cardiologic event

Female↗

Internal thoracic artery atherosclerosis after coarctation repair in an adult.

We report a rare case of a patient with an unsuitable grossly atherosclerotic and extensively calcified right internal thoracic artery found during a coronary bypass grafting operation. He had undergone an aortic coarctation repair 35 years before, with long-term systemic hypertension previous to the operation and sustained after it. It is advisable to be alert to the possibility of atherosclerotic degeneration of the internal thoracic artery in these patients.

Aortic Coarctation↗

[Reoperations of myocardial revascularization].

UNLABELLED: Coronary by-pass grafting is a well established procedure for ameliorating ischemic coronary disease. From time to time it is necessary to re-operate these patients. The objective of our paper is to present our experience in this field. Retrospective analysis of 128 patients operated on between February 1978 and November 1996, has been analyzed. The mean age was 57.4 +/- 0.7 years. 77.2 +/- 5 months elapsed between operations. Stable angina (20.4%) or unstable angina (76.3%), myocardial infarction (48%) and congestive heart failure (17%) were the predominant clinical manifestations. RESULTS: Hospital mortality was 10.9% (14 patients) and in the follow-up there were 16 deaths (14%). Perioperative myocardial infarction was the main cause of in-hospital mortality. In the follow-up there were 4 deaths due to myocardial infarction and another 4 patients died from neoplasms. Perioperative myocardial infarction was present in 9.3% (12 patients) IN CONCLUSION: a) Re-do coronary by-pass grafting is still a good procedure for solving myocardial ischemia in spite of a higher mortality and morbidity than in the original operation. b) There is no progression in the number of patients according to our experience, probably due to better techniques and the frequent actions by an intervention cardiologist. c) The long-term results are good enough, but with a higher mortality.

Adult↗

[Orthotopic heart transplantation in a patient with previously undiagnosed persistence of the left superior vena cava].

The amount of transplants has gone through a remarkable increase during the last years. As a result, congenital anomalies of little prevalence appear more and more often while performing the transplants. The persistence of upper cava vein is one of them and, if not linked to other anomalies, it usually remains unnoticed. This article presents a case of an orthotopic cardiac transplant in a patient with an upper cava vein duplication not diagnosed before undergoing surgery, and it compares the way it was handled to diverse techniques previously described.

Adult↗

[The midterm (6 years) clinical results of the Carpenter-Edwards supra-annular bioprosthesis].

We present here the clinical results with a second-generation porcine bioprosthesis, the Carpentier-Edwards supra-annular valve (CESA). Two-hundred and twenty-two CESA bioprostheses were implanted in 189 patients during a four-year period (from 1984 to 1987), either as an isolated procedure or associated to mitral or tricuspid repair. The mid-term clinical results have been evaluated after a mean follow-up of 3.4 years, being 96% complete. There were 16 in-hospital deaths (8.4%) and 6 late, potentially valve-related, cardiac deaths (1.1% patients/year). Overall, 86.7 +/- 2% of the patients were free from cardiac death at 6 years (95.1 +/- 2% of the patients surviving the operative period). Linearized rates of valve related complications were the following: 1.4% patients/year for thromboembolism (including valve thrombosis), 0.5% patients/year for treatment-related hemorrhage and 0.7% patients/year for endocarditis. We did not found any case of either intrinsic or extrinsic valve failure, unrelated to infection of thrombosis. Two patients were reoperated, one because of valve thrombosis and the other due to prosthetic valve endocarditis (reoperation rate of 0.3% patients/year). When lethal and nonlethal valve-related complications (including in-hospital deaths) were considered all together, 75.8 +/- 8.4% of the patients remained alive and free of morbid events at 6 years. When patients were grouped according to the valve replaced (aortic, mitral and multiple), best results were found with patients submitted to isolated aortic valve replacement. We conclude that the CESA bioprosthesis has an excellent mid-term clinical performance. However, longer follow-up is necessary to know if improvement in valve design and manufacturing results in increased valve durability.

Aortic Valve↗

Flow capacity of the human retrograde internal mammary artery: surgical considerations.

The diastolic flow of the retrograde internal mammary artery (IMA) was calculated in 30 patients and compared with the expected coronary flow of the left ventricle and that of specific branches. Arterial pressure and free flow were measured in the proximal and distal IMA as well as in the superior epigastric and musculophrenic arteries. Systolic and mean arterial pressure were significantly higher in the proximal IMA than in any other site, but diastolic pressure was comparable. Overall and diastolic antegrade IMA flows (77 +/- 6 and 44 +/- 3 mL/min) were significantly greater than the retrograde flows through the distal IMA (18.5 +/- 2 and 11.5 +/- 1 mL/min), musculophrenic artery (13.3 +/- 1 and 7.9 +/- 1 mL/min), and superior epigastric artery (5.3 +/- 0.4 and 3.1 +/- 0.2 mL/min). Only patient-size-related variables correlated significantly with retrograde IMA flow. Diastolic retrograde IMA flow represented 8.5% +/- 0.6% of the expected left ventricle coronary flow and in 12 patients (40%) was greater than the expected flow of at least one posteroinferior coronary artery. Based on these data, the retrograde IMA may adequately perfuse the posterior descending or other posterolateral coronary branches in select patients. Previous measuring of the retrograde flow is mandatory.

Adult↗

Selective and adjustable pericardial flap to protect internal mammary artery grafts.

We describe the surgical technique of a localized and adjustable pericardial flap to protect internal mammary artery grafts. This flap allows selective pulmonary retraction, maintains pleural integrity, and saves most of the pericardium for later closure. This technique has proved to be simple and highly effective. We have used it in 80 patients and have not had any related complications.

Humans↗

[Long-term experience with multivalve replacement with the Medtronic-Hall mechanical prosthesis].

During the period from January to September 1986, 182 Medtronic-Hall (M-H) heart valve prostheses were implanted in 89 patients, mainly because of rheumatic valve disease (68.5%). The patients were divided in two groups. Group I consisted of 83 patients with aortic and mitral valve replacement. Six patients with tricuspid valve replacement plus aortic and/or mitral valve replacement constituted group II. In group I the majority of the patients (86.7%) were in functional class III or IV (NYHA). Twenty three patients had undergone at least one previous cardiac operation. Hospital mortality was 6.02% (5/83). In group II the patients were in functional class III or IV (NYHA). Hospital mortality was 33.3% (2/6). Death occurred in the operating room in only one instance. Follow-up was completed in 98.9% and extended from 27 months to 8 years (348.7 patient years in group I and 23.08 patient years in group II). The overall 5 and 8 years actuarial survival, freedom of thromboembolism and freedom from endocarditis rates in group I were: 80.8 +/- 4.4% and 72.7 +/- 5.2%; 89.8 +/- 4% and 85.8 +/- 4.7%; 94.8 +/- 1.2 and 93.1 +/- 1.7%. In group II, actuarial studies were not carried out because of the scanty number of cases. There were another complications in group I: haemorrhage due to anticoagulation in 6 cases, hemolysis in 8 instances and periprosthetic leaks in 2 cases. There were no cases of structural failure. We conclude that after 8 years of follow-up the M-H valve prosthesis shows an excellent clinical performance and mechanical reliability, and the incidence of valve-related complications was in the low range of that reported with other mechanical prostheses.

Adult↗

[Myocardial revascularization surgery during a developing infarction].

Our results with surgical revascularization for evolving myocardial infarction in 30 patients are analyzed. There were 25 men and 5 women (mean age 55 +/- 10 years), most with unstable angina (80%), which sustained an acute myocardial infarction secondary to either a severe stenosis (23%) or a complete obstruction (77%) of a mayor coronary artery during a diagnostic coronarography (27%) or a percutaneous transluminal coronary angioplasty (73%). The most frequently involved vessels were the left anterior descending and right coronary arteries (11 cases), followed by the left main stem (5 cases) and the circumflex artery (3 cases). Nineteen patients (group I) developed electrocardiographic and/or enzymatic evidence of established myocardial necrosis despite early reperfusion, whereas 11 patients did not (group II). These groups were compared according to different clinical, angiographic, hemodynamic, and operative variables. Group I patients had a more recent disease and a better segmentary contraction. The same variables were compared between the 5 patients with early cardiac death (group III) and the remainder 25 (group IV). Refractory cardiac arrest, jeopardized myocardial mass and coronary perfusion indexes after the infarction-related complication, all were more desfavorable in group III. The ischemic interval between infarction onset and reperfusion was not different between the groups. The potential of surgery for myocardial salvage in the setting of evolving necrosis is emphasized as well as the influence of the magnitude of involved myocardium and its clinical repercussion on early mortality.

Adult↗

[Systemic-pulmonary fistula. Percentage of children attaining corrective surgery].

Because of the lack of information on definitive long term results of the systemic pulmonary fistulae (SPF) we decided to review our experience. From 1978/1980, SPF was carried out on 91 children with a minimal follow-up period of 53 months, 80 (88%) survive the immediate postoperative period, 65 (71%) the late period, although only 48 (53%) reached corrective surgery. 14 (50%) of the 28 newborn children died and only 9 (32%) had corrective surgery. 12 (19%) of the 63 children of two months or older died and 39 (62 por 100) had definitive surgery. 72% with Fallot syndrome, 58% with TGA and pulmonary stenosis and less than 40% of other pathologies also reached definitive corrective surgery. Frequently the SPF is the only alternative to achieve total correction although there may be a high mortality and morbidity rate. The age (newborn children) and the complex pathology are unfavourable in the end results.

Arteriovenous Shunt, Surgical↗

Aortopulmonary window with anomalous origin of the right coronary artery from the pulmonary trunk.

A case of aortopulmonary window associated with an anomalous origin of the right coronary artery from the pulmonary artery in a 3-month-old boy is reported. Angiographic diagnosis could be difficult because of the simultaneous filling of both great arteries that obscure the origin of the anomalous vessel; however, a careful evaluation of the angiogram may contribute to an accurate diagnosis. The surgical correction of this association of defects requires the connection of the aorta with the anomalous coronary ostium. An intrapulmonary tunneling procedure by means of a baffle is described.

Journal Article↗

[The implantable endocavitary cardioverter-defibrillator: the initial and short-term results].

Utilization of endocavitary defibrillation electrodes avoids thoracotomy used in implantable cardioverter-defibrillator procedures, reducing associated morbi-mortality. In our institution we have used this approach in 16 patients during a two years period (July 1990-July 1992). Fifteen were males, with a mean age of 56.9 +/- 10.6 (range 32-73). Nine patients suffered ischemic cardiomyopathy, 4 non ischemic cardiomyopathy and in three there was no structural heart disease. Mean ejection fraction was 44.3 +/- 18.3% (range 20-73%). Clinical arrhythmia was ventricular tachycardia in 8 cases, ventricular fibrillation in 6 cases and both types in 2. Endocavitary implantation procedure was not completed in 3 patients, thus an open trans-sternal approach was performed. In 13 patients it was completed successfully, using a total amount of 14 units (1 patient required two procedures due to sepsis in the generator pouch). Most important intraoperative incidences have been defibrillation thresholds between 20-24 J in 4 cases, displacement of defibrillation electrode from vena cava into coronary sinus in 4 cases, epicardial patch implantation via subcostal approach in 1 case and right ventricle perforation in 1 case. No operative mortality was registered. One patient suffered sudden death during follow-up. Surgical complications were few: 1 case of lead dislodgement and 1 infected wound in the generator's pouch. Non-surgical complications were also few: 1 case with superior vena cava syndrome and 1 patient with inadequate discharges. In conclusion, due to our early experience, we believe that endocavitary implantation of an implantable cardioverter-defibrillator is the procedure of choice at the present time.

Adult↗