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104 results on '"Venere G"'

1. [Doppler echocardiographic evaluation of functional parameters of mechanical and biological valve prostheses]

Author

De Gaetano G, Barberis L, Dottori V, Parodi E, Gc, Passerone, Lijoi A, Kandil H, Gnecco G, Luigi Badano, and Venere G

Subjects
Bioprosthesis, Male, Body Surface Area, Aortic Valve, Heart Valve Prosthesis, Humans, Mitral Valve, Female, Prosthesis Design, Echocardiography, Doppler
Abstract

We studied and compared functional parameters in 314 valvular prostheses. The following parameters have been calculated: mean transvalvular gradients for aortic and mitral prostheses and functional area by Pht (pressure half time) for mitral prostheses. All patients with important depression in myocardial function, tachycardia or malfunctioning prostheses were excluded. 173 prostheses were in aortic position and 141 in mitral position. Mitral prostheses were: 31 biological and 110 mechanical. We subdivided mechanical prostheses in monoleaflet (Omnicarbon, Sorin-Carbocast and Allcarbon, Medtronic, Bjork-Shiley) and bileaflet (Sorin-Bicarbon, St. Jude). These three groups were compared: mean transvalvular gradients and area showed no differences. Aortic prostheses were: 33 biological and 140 mechanical; mechanical prostheses were subdivided in two groups: monoleaflet (Sorin Allcarbon e Carbocast, Bjork-Shiley, Medtronic, Omnicarbon) and bileaflet (Sorin-Bicarbon, St. Jude). Mean transvalvular gradients of these three groups were compared within each group for every size: bileaflet prostheses demonstrated inferior gradients than biological and monoleaflet for 19-21 and 23 sizes; in superior sizes there were no significant differences. Further analysis showed a significant correlation among gradients and body surface area in the 21 size prostheses (p = 0.004). Bileaflet prostheses in this subgroup showed less increase in mean gradient with surface area than mechanical and biological ones.

Published
1993

2. Surgical management of intracardiac myxomas. A 16-year experience

Author

Lijoi, A., Scoti, P., Faveto, C., Canale, C., Parodi, Enrico, Passerone, Giancarlo, Dottori, V., and Venere, G.

Subjects
Adult, Aged, 80 and over, Heart Neoplasms, Male, cardiovascular system, Methods, Humans, Female, cardiovascular diseases, Middle Aged, Myxoma, Aged, Research Article
Abstract

Twenty-six patients with an intracardiac myxoma underwent surgical resection at our institution from 1977 through 1992. Left atrial myxoma was diagnosed in 22 patients, left ventricular in 1, right atrial in 2, and right ventricular in 1. Six patients were asymptomatic; preoperative symptoms included dyspnea, arrhythmias, embolic episodes, and syncope. The diagnosis was established with transthoracic echocardiography in all cases but one. Surgery was performed in all cases with the aid of cardiopulmonary bypass with moderate hypothermia and cold crystalloid cardioplegia. One patient with a left ventricular myxoma died in a comatose state during the immediate postoperative period. Long-term clinical and echocardiographic evaluation was performed in 19 patients; results were excellent (all the patients were in New York Heart Association functional class I or II), and no recurrences were documented. The clinical characteristics, diagnostic methods, and surgical approach are presented and discussed.

Published
1993

3. Emergency surgical treatment for total left main coronary artery occlusion. A report of 2 cases

Author

Lijoi, A, Della Rovere, F, Passerone, G C, Dottori, V, Scarano, F, Bo, M, Parodi, E, and Venere, G

Subjects
Research Article
Abstract

Treatment of total left main coronary artery occlusion is rarely reported (84 chronic and acute cases in the world literature), due to the high mortality rate from massive myocardial infarction. Acute occlusions have been treated with intracoronary streptokinase, with percutaneous transluminal coronary angioplasty, or with both. To date, there has been no report of successful surgical revascularization in an acute case. We present 2 cases of surgically treated patients who survived total left main coronary artery occlusion that appears to have been acute, or acutely evolving. Both patients had an 80% or greater stenosis of the right coronary artery, yet have remained in New York Heart Association functional class I or II postoperatively. We attribute this not only to the aggressive surgical approach, which enabled reperfusion to be achieved within 2 hours of total occlusion, but to the protective effect in these patients of right coronary-to-left anterior descending collaterals.

Published
1993

4. A new technique for hemodilution, preparation of autologous platelet-rich plasma and intraoperative blood salvage in cardiac surgery

Author

Ferrari, M., Zia, S., Valbonesi, M., Henriquet, F., Venere, G., Spagnolo, S., Grasso, M.A., and Panzani, I.

Abstract

We have developed a new system for the production of autologous platelet-rich plasma and red blood cell concentrates to be used in autologous transfusion support of cardiac surgery patients. In 15 operations no homologous blood products were required. Costs were diminished since with the same harness it was possible to carry out the intraoperative blood salvage and concentrate the erythrocytes contained in the oxygenator and its lines. Indirect costs were also reduced since no infective complication was observed due to homologous blood products.

Published
1987
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7. [Indications for permanent cardiac pacemaking]

Author

Venere, G., Barberis, L., and Passerone, Giancarlo

Subjects
Pacemaker, Artificial, Heart Block, pace-makers, Bradycardia, Digitalis Glycosides, Humans, Arrhythmias, Cardiac
Abstract

Technical improvements have considerably extended the indications for the implantation of pacemakers. Nearly all forms of bradyarrhythmia and some forms of tachycardia, including sinus node disease, have gradually been added alongside stable A-V blocks, while preventive implantation is now commonly indicated in asymptomatic forms and bradycardia due to drugs. The recent appearance of rapid-pulse and scanning pacemakers has further extended their indication to cover other forms of ectopic and reciprocating tachycardia.

Published
1977

8. 2 cases of pericardial cysts

Author

Lijoi, A., Barberis, L., Passerone, Giancarlo, Cannici, F., and Venere, G.

Subjects
Adult, Heart Diseases, Cysts, Humans, Female, Pericardium
Published
1977

10. [The battery-state control. A new possibility for the control of pacemakers. Preliminary report (author's transl)]

Author

Barberis, L., Passerone, Giancarlo, Lijoi, A., Brisighella, A., Venere, G., Vercellotti, F., and Costamagna, G.

Subjects
Evaluation Studies as Topic, pace-makers, Humans, Arrhythmias, Cardiac
Abstract

After a brief examination of the technical problems of current pacemakers, with special reference to the battery state control, the authors present a new technique for such control. A power stabilizer able to generate a standard pulse of 4.3 in every condition of battery charge has been fitted on the power supply of a fixed rate pacemaker of normal production. By activating (through an external magnet) such apparatus, it is possible with an easy oscilloscopic measurement to obtain the real value of the battery voltage. Thus the comparison with previously taken measurements and the errors connected with the repetition of such measurements can be avoided. The stimulation rate and the pulse duration corresponding to the discharged state of the batteries can also be known in advance. The data obtained from the first two controls are reported.

Published
1976

11. [The choice of operation in surgery of mitral stenosis]

Author

Barberis, L., Passerone, Giancarlo, Lijoi, A., and Venere, G.

Subjects
Adult, Male, Postoperative Complications, Adolescent, Evaluation Studies as Topic, Methods, Humans, Mitral Valve Stenosis, Female, Middle Aged
Published
1977

12. [Catheter embolism. Method of bloodless extraction]

Author

Barberis, L., Lijoi, A., Passerone, Giancarlo, Scarano, Flavio, Scoti, P., Barbara, A., Maurelli, A., Brisighella, A., and Venere, G.

Subjects
Cardiac Catheterization, Vena Cava, Superior, catheter embolism, Methods, Humans, Pulmonary Artery, Foreign Bodies, Surgical Instruments
Abstract

A detailed review and analysis of world literature on the techniques employed for the retrieval of polythene catheter fragments, metal spindles or Pudenz catheters from the heart or large vessels is presented. Non-surgical retrieval techniques are discussed on the basis of 174 cases reported in the literature. 2 personal cases of the retrieval of foreign bodies from the heart using a Deyhle-Seubert catheter are presented.

Published
1982

15. A new technique for hemodilution, preparation of autologous platelet-rich plasma and intraoperative blood salvage in cardiac surgery

Author

Valbonesi M, Venere G, Ferrari M, Henriquet F, Panzani I, S. Zia, Spagnolo S, and Grasso Ma

Subjects
Male, medicine.medical_specialty, Blood transfusion, Oxygenators, medicine.medical_treatment, 030232 urology & nephrology, Biomedical Engineering, Medicine (miscellaneous), Plateletpheresis, Bioengineering, 030204 cardiovascular system & hematology, Biomaterials, 03 medical and health sciences, Blood Transfusion, Autologous, 0302 clinical medicine, medicine, Humans, Cardiac Surgical Procedures, Hemodilution, Intraoperative blood salvage, business.industry, Blood Component Removal, General Medicine, Middle Aged, Cardiac surgery, Surgery, Red blood cell, medicine.anatomical_structure, Anesthesia, Female, business, Autotransfusion
Abstract

We have developed a new system for the production of autologous platelet-rich plasma and red blood cell concentrates to be used in autologous transfusion support of cardiac surgery patients. In 15 operations no homologous blood products were required. Costs were diminished since with the same harness it was possible to carry out the intraoperative blood salvage and concentrate the erythrocytes contained in the oxygenator and its lines. Indirect costs were also reduced since no infective complication was observed due to homologous blood products.

Published
1987

16. Subacute left ventricular free wall rupture complicating acute myocardial infarction. Successful surgical repair with a sutureless technique.

Author

Lijoi A, Scarano F, Parodi E, Dottori V, Secchi GL, Delfino R, Tallone M, and Venere G

Subjects
Adhesives, Aged, Biocompatible Materials, Cardiac Surgical Procedures methods, Female, Humans, Male, Middle Aged, Polytetrafluoroethylene, Sutures, Ventricular Septal Rupture surgery
Abstract

The high mortality index related to surgical therapy with direct suture of rupture of left ventricular free wall following acute myocardial infarction, suggested we analyze and use alternative techniques. So we applied sutureless technique described by Padro to two patients. We used a Teflon patch fixed to the ventricular wall with a biocompatible synthetic glue, an ethyl-2-cyanoacrylate monomer, without any direct suturing of the infarcted myocardium. The two patients survived the operation and were discharged from the hospital 12 and 14 days after surgery. The sutureless technique allows, in our opinion, a more confident and safe aggressive attitude to subacute left ventricular free wall rupture.

Published
1996

17. [Serial Doppler echocardiography follow-up studies in the postoperative evaluation of severe pulmonary hypertension following surgery for mitral and mitral-aortic defects].

Author

De Gaetano G, Barberis L, Dottori V, Parodi E, Picasso F, Lijoi A, Gnecco G, and Venere G

Subjects
Aortic Valve Insufficiency complications, Aortic Valve Insufficiency surgery, Echocardiography, Doppler, Female, Follow-Up Studies, Humans, Hypertension, Pulmonary diagnostic imaging, Male, Middle Aged, Mitral Valve Insufficiency complications, Mitral Valve Stenosis complications, Mitral Valve Stenosis surgery, Hypertension, Pulmonary etiology, Mitral Valve Insufficiency surgery
Abstract

Between January 1987 and December 1991 26 patients with mitral and mitro-aortic disease and severe pulmonary hypertension (> or = 60 mmHg) were subjected to surgery. In 22 patients we have studied systolic pulmonary pressures by echocardiography-Doppler examination at 3-6 and 12 months from surgery. We noticed a decrease in pulmonary pressure values in all patients within 3 months from surgery (mean values pre-op 75 +/- 12.14; mean values post-op 42 +/- 11.26); within 6 months from surgery physiological values were reached in all patients (mean values 35 +/- 5.3). We have further divided patients in two subgroups: group A with pulmonary pressures superior or equal to 80 mmHg (mean values 90.00 +/- 17.32) and group B With pressure values between 60 and 79 mmHg (mean values 69.12 +/- 3.64). The first Doppler evaluation demonstrated a greater decrease in group B (mean values 37.8 +/- 6.5 versus 57 +/- 12.4); at the second control there was no statistically significant difference between the two groups (group A 36 +/- 5.48, group B 33.33 +/- 5.37). The only two operative deaths were caused by the pre-op cardiogenic shock. There has been no late mortality among survivors, 22 in NYHA Class I and 2 in NYHA Class II. Pulmonary hypertension decreases after surgery independently of the adopted procedure (replacement, repair or lysis).

Published
1993

18. Emergency surgical treatment for total left main coronary artery occlusion. A report of 2 cases.

Author

Lijoi A, Della Rovere F, Passerone GC, Dottori V, Scarano F, Bo M, Parodi E, and Venere G

Subjects
Aged, Coronary Angiography, Coronary Artery Bypass, Coronary Thrombosis diagnostic imaging, Humans, Male, Middle Aged, Myocardial Infarction diagnostic imaging, Shock, Cardiogenic diagnostic imaging, Shock, Cardiogenic surgery, Veins transplantation, Coronary Thrombosis surgery, Emergencies, Myocardial Infarction surgery
Abstract

Treatment of total left main coronary artery occlusion is rarely reported (84 chronic and acute cases in the world literature), due to the high mortality rate from massive myocardial infarction. Acute occlusions have been treated with intracoronary streptokinase, with percutaneous transluminal coronary angioplasty, or with both. To date, there has been no report of successful surgical revascularization in an acute case. We present 2 cases of surgically treated patients who survived total left main coronary artery occlusion that appears to have been acute, or acutely evolving. Both patients had an 80% or greater stenosis of the right coronary artery, yet have remained in New York Heart Association functional class I or II postoperatively. We attribute this not only to the aggressive surgical approach, which enabled reperfusion to be achieved within 2 hours of total occlusion, but to the protective effect in these patients of right coronary-to-left anterior descending collaterals.

Published
1993

19. [Strategies for avoiding or reducing the use of homologous blood in heart surgery].

Author

Venere G, Barberis L, and Dottori V

Subjects
Age Factors, Blood Transfusion, Autologous methods, Blood Transfusion, Autologous statistics & numerical data, Cardiac Surgical Procedures statistics & numerical data, Humans, Intraoperative Care methods, Intraoperative Care statistics & numerical data, Sex Factors, Time Factors, Transplantation, Homologous, Blood Transfusion statistics & numerical data, Cardiac Surgical Procedures methods
Published
1992

20. [Acute surgically-treated complications of myocardial infarct. Clinical experience and discussion of surgical indications].

Author

Dottori V, Barberis L, Parodi E, De Gaetano G, Agostini M, Giambuzzi M, Falcone F, Scoti P, and Venere G

Subjects
Aged, Emergencies, Female, Follow-Up Studies, Heart Rupture, Post-Infarction mortality, Humans, Male, Middle Aged, Time Factors, Heart Rupture, Post-Infarction surgery, Heart Septum, Papillary Muscles
Abstract

Post-infarction free-wall, papillary muscle and septal myocardium rupture yields a lowering mortality, not only due to the improved surgical technique but also to a more careful selection of surgical candidates. The value of pericardial decompression in cases of free-wall rupture is discussed. Echocardiographic evidence of blood in the pericardium after a myocardial infarction is not a direct indication for a diagnostic sampling, decompression or surgery. Pericardiocentesis is not a risk-free procedure and should be limited to patients with life-threatening acute tamponade. Clinical results of 34 patients operated upon for myocardial rupture, regardless of adopted technique or timing of surgery, confirm that the decision about a patient's operability should follow a careful evaluation of the following risk factors in this order: infarct size, age, cardiogenic shock, multiorgan failure, rupture site, cardiac failure and associated diseases.

Published
1992

22. [Left endoatrial myxoma. Notes on a case].

Author

Venere G, Lijoi A, Barberis L, Passerone GC, Scarano F, and Corsini MB

Subjects
Angiocardiography, Echocardiography, Female, Heart Atria, Heart Neoplasms surgery, Humans, Middle Aged, Myxoma surgery, Radiography, Thoracic, Heart Neoplasms diagnosis, Myxoma diagnosis
Abstract

A case of left endoatrial mixoma, ecocardiographically discovered and successfully operated, is reported. The usefulness of ecocardiography, especially to discover intracardiac masses, is considered.

Published
1980

24. [A case of coronary arteriovenous fistula].

Author

Gatto E, Barberis L, Liyoi A, Veccia F, and Venere G

Subjects
Adolescent, Arteriovenous Malformations diagnosis, Coronary Vessel Anomalies diagnosis, Female, Humans, Arteriovenous Malformations surgery, Coronary Vessel Anomalies surgery, Vena Cava, Superior abnormalities
Published
1975

25. [Complications of permanent cardiac stimulation. Personal experience].

Author

Venere G, Barberis L, Passerone GC, Lijoi A, and Brisighella A

Subjects
Aged, Arrhythmias, Cardiac etiology, Bacterial Infections etiology, Cardiac Catheterization, Female, Humans, Long-Term Care, Male, Middle Aged, Time Factors, Pacemaker, Artificial adverse effects
Published
1975

26. [Anti-arrhythmic effects of cardioplegic myocardial protection].

Author

Venere G, Barberis L, Passerone GC, Lijoi A, Scarano F, Brisighella A, Guardincerri C, and Launo C

Subjects
Adult, Arrhythmias, Cardiac prevention & control, Female, Heart Neoplasms surgery, Heart Septal Defects surgery, Heart Valve Diseases surgery, Humans, Male, Postoperative Complications, Cardiac Surgical Procedures, Extracorporeal Circulation, Heart Arrest, Induced
Abstract

Cardioplegia gave excellent results in a preliminary series of 33 cases in which it was used during surgery. The fact that a sinus rhythm was re-established at the end of extracorporeal circulation in patients in atrial fibrillation suggests that it exerts an antiarrhythmic action at the atrial a level.

Published
1980

27. [The phenomenon of atrial thrombosis in mitral stenosis].

Author

Barberis L, Passerone GC, Lijoi A, Brisighella A, and Venere G

Subjects
Adolescent, Adult, Aged, Atrial Fibrillation etiology, Calcinosis etiology, Female, Humans, Male, Middle Aged, Heart Atria, Mitral Valve Stenosis complications, Thrombosis etiology
Published
1978

29. [Closed-heart mitral valve surgery].

Author

Venere G, Barberis L, and Lijoi A

Subjects
Adult, Age Factors, Dilatation methods, Female, Humans, Male, Methods, Postoperative Complications, Mitral Valve Stenosis surgery
Abstract

Good results and an absence of complications were obtained in 100 cases of closed-heart mitral commissurotomy. The present importance of digital divulsion of the beating heart is emphasised. Widening of the ostium was not hampered by the presence of calcifications or tendinous chords. Intracavitary thrombosis proved to be closely related to age, the seriousness of the symptoms, and the state of the ostium surface.

Published
1977

30. [Experience with lithium pacemaker in the University of Genova (Italy) (author's transl)].

Author

Lijoi A, Casabona R, Dal Monte P, Venere G, and Brisighella A

Subjects
Adult, Aged, Electric Power Supplies, Female, Humans, Italy, Lithium, Male, Middle Aged, Pacemaker, Artificial instrumentation, Pacemaker, Artificial standards
Abstract

The Authors report on their own experience of 77 lithium pacemaker implanted between 1974 and September 1977 in the Centre of Cardiac Surgery of the University of Genova (Italy). Only one generator has been replaced till now because of liquid infiltration. Rate variations in pacemaker marketed by Sorin were studied, considering the test-stand rate the first control and the following rate controls; the reliability of this parameter was confirmed.

Published
1978

31. [Theory concerning a possible mechanism of displacement of intracavitary electrode catheters].

Author

Barberis L, Passerone GC, Lijoi A, Cannici C, Venere G, and Brisighella A

Subjects
Humans, Cardiac Catheterization, Pacemaker, Artificial adverse effects
Abstract

Reference is made to three cases in proposing an explanation for the shifting of endocavitary catheters, namely traction of the lead attached to the lower side of the stimulator owing to movement of the apparatus, resulting in displacement of the tip. It is pointed out that the intravasal length of the displaced catheter is markedly decreased in 3 out of 4 cases. Attention is therefore drawn to the importance of the relation between catheter and stimulator in causing a high percentage of the case of displacement observed.

Published
1975

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