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1.
Eur J Vasc Endovasc Surg ; 35(2): 230-7, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17964822

RESUMO

OBJECTIVES: To compare the long-term results of stripping vs. haemodynamic correction (Ambulatory Conservative Haemodynamic Management of Varicose Veins, CHIVA) in the treatment of superficial venous incompetence resulting in chronic venous disease (CVD). DESIGN: Randomised comparative trial. PATIENTS: 150 patients affected by CVD, CEAP clinical class 2-6, were randomised to saphenous stripping or to CHIVA. METHODS: The clinical outcome was assessed by an independent observer who recorded the Hobbs clinical score for treated limbs. A subjective report of the outcome was provided by the patients. Recurrence of varices was assessed by both clinical examination and duplex ultrasonography. RESULTS: The mean follow-up was 10 years, 26 patients were lost to follow-up. The Hobbs score similar in the stripping and CHIVA groups. However recurrence of varicose veins was significantly higher in the stripping group (CHIVA 18%; stripping 35%, P<0.04 Fisher's exact test), without significant differences in the rate of recurrences from the sapheno-femoral junction. The associated risk of recurrence at ten years was doubled in the stripping group (OR 2.2, 95% CI 1-5, P=0.04). CONCLUSIONS: Recurrent varices occurred more frequently following saphenous stripping than after CHIVA treatment. The deliberate preservation of the saphenous trunk as a route of venous drainage in the CHIVA group may have been a factor reducing the recurrence rate.


Assuntos
Hemodinâmica , Varizes/cirurgia , Procedimentos Cirúrgicos Vasculares , Insuficiência Venosa/complicações , Doença Crônica , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Razão de Chances , Satisfação do Paciente , Medição de Risco , Prevenção Secundária , Índice de Gravidade de Doença , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento , Ultrassonografia Doppler Dupla , Varizes/diagnóstico por imagem , Varizes/etiologia , Varizes/fisiopatologia , Insuficiência Venosa/diagnóstico por imagem , Insuficiência Venosa/fisiopatologia , Insuficiência Venosa/cirurgia
2.
Panminerva Med ; 37(4): 190-7, 1995 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-8710399

RESUMO

OBJECTIVE: Evaluation of long saphenous vein sparing surgical procedures alternative to high ligation and distal stab avulsion, in terms of effectiveness and suitability for eventual by-pass surgery. EXPERIMENTAL DESIGN: Prospective evaluation of 125 operations for primary varicose veins, 52 external valve-plasties of the sapheno-femoral junction (EV-SFJ) (42 performed using the hand sewing technique and 10 using the Veno-cuff device), mean follow-up 45 months, and 73 hemodynamic correction of varicose veins (French acronyms: CHIVA), mean follow-up 30 months. SETTING: Department of General Surgery, University of Ferrara. Institutional practice, one-day surgery. PATIENTS: Patients were selected using clinical, Doppler cw, and duplex scanning evaluations. Patients with early varices due to sapheno-femoral reflux with duplex scanning evidence of mobile valve leaflets underwent EV-SFJ. The other patients were operated on using the hemodynamic correction technique. Both groups underwent preoperative ambulatory venous pressure (AVP) and light reflection rheography-refilling time (LRR-RT) measurements. INTERVENTIONS: EV-SFJ restores valve function correcting vein wall dilitation by applying an external prosthesis. CHIVA consists of selected ligatures of the superficial veins that allow superficial blood aspiration in the deep veins through the perforators. MEASURES: The outcome was evaluated with clinical and ultrasonographic examinations, AVP and LRR-RT measurements. RESULTS: Long saphenous vein patency registered after EV-SFJ and CHIVA was 94.2% and 90.4%, respectively. Both treatments preserve the drainage function in the saphenous system. Varicose veins recurrence percentage rate was 9.6% and 10.9%, respectively. CONCLUSIONS: Following the proposed selection criteria, these two alternative procedures seem to be more effective in varices treatment than high ligation and have the advantage of preserving saphenous veins suitable for eventual by-pass surgery.


Assuntos
Prótese Vascular , Veia Safena , Varizes/cirurgia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
3.
Surg Endosc ; 15(8): 812-5, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11443457

RESUMO

BACKGROUND: The role of laparoscopic intraoperative cholangiography (IC) in the diagnosis of asymptomatic choledocholithiasis is still controversial. The aim of this study was to evaluate the diagnostic-therapeutic impact and the educational implications of this method for residents specializing in general surgery. METHODS: We reviewed the records of 835 patients who underwent laparoscopic cholecystectomy for cholecystolithiasis without choledocholithiasis. IC was routinely performed by both expert surgeons and residents in general surgery. RESULTS: The cholecystectomy was completed laparoscopically in 804 cases, but conversion to open surgery was required in 31 cases. IC was not completed in 140 cases (17.4%), and in 44 cases it revealed a suspected choledocholithiasis. The stones were treated via laparoscopy in 36 cases, laparotomy in six cases, and endoscopic retrograde cholangiopancreatography (ERCP) in two cases. Five patients were not diagnosed wit h choledocholithiasis. In one case, a lesion of the choledochus was discovered and treated laparoscopically. A total of 610 IC were done by expert surgeons and 225 by residents. The duration of the cholecystectomy with IC was significantly different between the two groups (76.9 +/- 12 vs 92.4 +/- 11), as was the feasibility index (88.6% vs 80.6%). CONCLUSIONS: Laparoscopic IC is a safe and accurate procedure for the diagnosis of unrecognized choledocholithiasis. Teaching of this procedure as part of the specialization in general surgery would be opportune because it would provide surgical residents with an additional tool for the diagnosis and treatment of this pathology of the common bile duct.


Assuntos
Colangiografia , Colecistectomia Laparoscópica/educação , Cirurgia Geral/educação , Internato e Residência , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Colangiopancreatografia Retrógrada Endoscópica , Reações Falso-Positivas , Feminino , Cálculos Biliares/diagnóstico por imagem , Cálculos Biliares/cirurgia , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Monitorização Intraoperatória , Estudos Retrospectivos
4.
J Cardiovasc Surg (Torino) ; 39(2): 151-62, 1998 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-9638997

RESUMO

OBJECTIVE: Evaluation of saphenous vein sparing surgical procedures alternative to high ligation and distal stab avulsion, in terms of effectiveness and suitability for eventual bypass surgery. EXPERIMENTAL DESIGN: Prospective evaluation of 421 operations for primary varicose veins, 64 external valve-plasties of the sapheno-femoral junction (EV-SFJ), (42 performed using the hand sewing technique and 22 using the Veno-cuff device), mean follow-up 52 months, and 357 hemodynamic correction of varicose veins (French acronymis CHIVA), mean follow-up 49 months. Moreover, a subgroup of 27 patients was operated on using the CHIVA technique in two steps, mean follow-up 18 months. SETTING: Institute of General Surgery, University of Ferrara. Institutional practice, one-day surgery. PATIENTS: Patients were selected using clinical and duplex scanning evaluations, and classified according to CEAP criteria. Patients with varicose veins due to sapheno-femoral reflux with duplex scanning evidence of mobile valve leaflets underwent EV-SFJ. The other patients were operated on using the hemodynamic correction technique. INTERVENTIONS: EV-SFJ restores valve function correcting vein wall dilatation by applying an external prosthesis. CHIVA consists of selected ligatures of the superficial veins that allow superficial blood aspiration in the deep veins through the perforators as well as the preservation of saphenous drainage. MEASURES: The outcome was evaluated with independent clinical and ultrasonographic examinations; pre and postoperative AVP and LRR-RT measurements were assessed in 125 cases. Data from self-assessment of the functional and cosmetic result of the patients of the CHIVA group were also obtained using a scoring system. Moreover, scanning the preserved long saphenous vein the rate of long saphenous vein suitable as arterial conduit following sparing surgery was also evaluated. RESULTS: Overall long saphenous vein patency registered after EV-SFJ and CHIVA was 94%. Varicose veins recurrence rate was 12% and 11%, respectively. Postoperative AVP and LRR-RT improvement was statistically significant (p<0.001). CONCLUSIONS: These two alternative procedures seem to be effective in varices treatment following the proposed indications and techniques. In addition, they appear able to preserve a more significant rate of saphenous veins suitable for eventual bypass surgery than high ligation and multiple cosmetic avulsion.


Assuntos
Veia Femoral/cirurgia , Perna (Membro)/irrigação sanguínea , Veia Safena/cirurgia , Varizes/cirurgia , Procedimentos Cirúrgicos Vasculares , Adulto , Idoso , Velocidade do Fluxo Sanguíneo , Feminino , Veia Femoral/diagnóstico por imagem , Seguimentos , Humanos , Ligadura , Masculino , Pessoa de Meia-Idade , Monitorização Intraoperatória , Flebografia , Estudos Prospectivos , Recidiva , Veia Safena/diagnóstico por imagem , Resultado do Tratamento , Ultrassonografia Doppler Dupla , Varizes/diagnóstico , Varizes/fisiopatologia , Grau de Desobstrução Vascular
5.
Int Angiol ; 14(2): 202-8, 1995 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-8609448

RESUMO

OBJECTIVE: Evaluation of the feasibility and utility of angioscopy in the hemodynamic correction (French acronyms is CHIVA) of primary varicose veins disease. EXPERIMENTAL DESIGN: Prospective evaluation of 25 patients, undergoing hemodynamic correction of primary varicose disease with intraoperative videoangioscopic guide. Patients have been selected according to criteria emerged from a prospective study that we had previously conducted. Follow-up lasted 1 year (range 8-18 months). SETTING: Department of Surgery, University of Ferrara, Italy. Institutional practice. One-day surgery. PATIENTS: Their selection has been carried out in our Vascular Laboratory. The adopted clinical criteria of selection were: Primary varicose disease of the long saphenous vein territory, no previous thrombophlebitis and/or sclerotherapy. Doppler cw and Duplex criteria followed were: competent deep venous system, long saphenous vein diameter minor than 10 mm and incompetent perforating veins diameter minor than 4 mm. INTERVENTIONS: 25 hemodynamic corrections according to the CHIVA method described by Franceschi. An angioscope, introduced through a distal collateral of the long saphenous vein, permitted the precise interruption of the venous-venous shunts and of the superficial venous system, just below the perforators chosen as re-entry points in the deep venous system. MEASURES: Clinical: varices and symptomatology reduction. Duplex and Doppler cw: detection of the superficial blood flow re-entry, in the deep venous system, through the perforators and identification of recurrences or new refluxes. Pre and postoperative Ambulatory Venous Pressure and Refilling Time have also been measured. RESULTS: In 20 patients symptoms and varices relief were recorded (80%), in 5 patients varices reduction was observed only during walking (20%). In 2 of these latter patients there was no re-entry through the perforators, with a recurrent sapheno-femoral reflux in 1 of them. Early complications recorded were: 2 long saphenous vein thrombosis (8%); 7 ecchimosis (28%) when heparine/saline solution had been used for angioscopic clearance. CONCLUSIONS: Intraoperative angioscopy is feasible and useful when the hemodynamic situation is complex and the Duplex map is difficult to be interpreted by the surgeon. In this series the second look percentage rate has been minor compared to the percentage rates published so far by other authors.


Assuntos
Angioscopia , Varizes/fisiopatologia , Adolescente , Adulto , Feminino , Seguimentos , Hemodinâmica , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Veia Safena/fisiopatologia , Veia Safena/cirurgia , Varizes/diagnóstico , Varizes/cirurgia , Gravação em Vídeo
6.
Int Angiol ; 15(2): 149-52, 1996 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-8803640

RESUMO

OBJECTIVE: To assess the relationship between in vitro and in vivo venous compliance measurement. DESIGN: Prospective, blind study. MATERIALS AND METHODS: Patients affected by primary varicose veins and classified in accord with the new CEAP criteria (C2-6/S, Ep, AS1-4/p17-18, PR) underwent blind venous compliance measurements using two different methods. 1) In vivo assessment of the compliance of the greater saphenous vein by duplex scanning, for diameter, and a needle transducer, for venous pressure measurements. 2) In vitro standard compliance assessment of the same vein segment after its excision. RESULTS: The compliance values obtained with the two methods showed a significant degree of correlation, which improved with increasing intravenous pressures. CONCLUSIONS: In vivo compliance assessment of the saphenous vein was validated by the relationship with the standard in vitro measurement.


Assuntos
Veia Safena/fisiopatologia , Varizes/diagnóstico , Elasticidade , Humanos , Varizes/fisiopatologia , Grau de Desobstrução Vascular/fisiologia , Resistência Vascular/fisiologia , Pressão Venosa/fisiologia
7.
Minerva Chir ; 50(5): 463-8, 1995 May.
Artigo em Italiano | MEDLINE | ID: mdl-7478057

RESUMO

Selected patients with primary varicose vein disease and sapheno-femoral reflux as the only point of regurgitation in the affected lower limb and duplex evidence of mobile valve leaflets underwent external valvuloplasty of the sapheno-femoral junction. Operations were performed under local anesthesia in one day-surgery. One PTFE sleeve 0.4 mm thick, in average 1.2 cm long and able to uncircle a circumference in average of 1.7 cm was put around the terminal Long Saphenous vein valve, located in the last centimeter of this vein. If also the subterminal Long Saphenous Vein valve site, located 5 cm below is dilated a second valvuloplasty was performed. In 15 case we used intra-operatory video-angioscopy guide. This examination allowed us to exclude two patients with valve damages not duplex demonstrable. Furthermore angioscopy permitted immediate demonstration of restored valvular function. Follow-up lasted on average 48 months: two early postoperative long saphenous vein thrombosis, and two late sapheno-femoral reflux recurrences were the main complications. We never observed graft infection. AVP was reduced and RT, measured by the means of LRR, had a prolongation after surgery. Both measurements had an highly significant difference from a statistical point of view, comparing pre and postoperative values. 95% of the operated patients have stable varices reduction. Long Saphenous Vein patency was recorded in 37 cases (92.5%). On the contrary, after high ligation, the fate of the saphenous vein in 21% of case is the occlusion. Symptoms of venous insufficiency disappeared completely in 80% of cases and improved in 95% of the operated patients.(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Veia Femoral/cirurgia , Hemodinâmica , Veia Safena/cirurgia , Varizes/cirurgia , Seguimentos , Humanos , Politetrafluoretileno
8.
J Vasc Surg ; 26(5): 796-802, 1997 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-9372817

RESUMO

PURPOSE: In spite of its invasiveness, measurement of ambulatory venous pressure (AVP) is widely considered the gold standard measurement of venous function. We studied a technique for noninvasive ultrasonographic AVP determination in superficial venous incompetence. METHODS: A linear relationship between venous pressure (measured by echo-guided venous puncture) and diameter (measured by transverse axis duplex imaging) was preliminarily demonstrated with multiple measurements in different conditions (supine, sitting, standing, and Trendelenburg positions, after exercise with and without cuff occlusion) in a saphenous tract at the thigh of 82 limbs in which reflux had been previously demonstrated. Then AVP was measured in another group of 44 patients who had demonstrated superficial venous incompetence, both with and without proximal occlusion, using again the same invasive method and a new noninvasive technique. The latter technique consisted in the construction of a linear diameter/pressure curve obtained after saphenous diameter (by high-resolution sonography) and noninvasive pressure (using hydrostatic values) determinations in the sitting and standing positions. Further measurement of saphenous diameter after standardized exercise permits extrapolation of the AVP values from the curve. RESULTS: Linear regression analysis demonstrates that (1) beginning from 20 mm Hg, the pressure/diameter relationship of the incompetent greater saphenous vein is linear; and (2) AVP values derived invasively and noninvasively are significantly correlated (r = 0.7347 and p < 0.0001 for AVP derived without occlusion; r = 0.7270 and p < 0.0001 for values recorded with occlusion). CONCLUSIONS: The proposed technique appears able to reliably assess noninvasively AVP values in superficial venous incompetence. In addition, it can be performed with equipment that is widely used for vascular investigations.


Assuntos
Exercício Físico , Insuficiência Venosa/diagnóstico por imagem , Pressão Venosa , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Postura , Veia Safena/fisiopatologia , Ultrassonografia , Insuficiência Venosa/fisiopatologia
9.
Dermatol Surg ; 21(7): 621-5, 1995 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-7606374

RESUMO

BACKGROUND: Hemodynamic correction (CHIVA) is a conservative, ambulatory, and controversial varicose vein treatment. It consists of selected ligatures of the superficial venous system decided by means of preoperative duplex mapping. OBJECTIVE: Prospective evaluation of 80 patients, operated on according to the CHIVA technique described by Claude Franceschi. Mean follow-up length was 30 months. METHODS: Fifty-five consecutive patients were operated on after clinical, ultrasonographic, ambulatory venous pressure and light reflection rheography evaluations. After a 3-year follow-up, another 25 consecutive patients were selected applying some exclusion criteria that emerged in the first part of the study. This second series was operated on by means of intraoperative angioscopy. The same preoperative evaluations have been used to study the outcome in all patients. RESULTS: CHIVA failed in the short saphenous vein territory varices and when the long saphenous vein and the insufficient perforating veins had a preoperative diameter greater than 10 and 4 mm, respectively. The procedure showed a long saphenous vein patency of 90.4% and registered a total recurrence rate of 18.7%. CONCLUSIONS: CHIVA seems to be a more effective varicose vein treatment than high ligation and distal stab avulsion. It also preserves a higher rate of long saphenous veins, suitable for bypass surgery.


Assuntos
Varizes/cirurgia , Adolescente , Adulto , Procedimentos Cirúrgicos Ambulatórios , Angioscopia , Circulação Colateral , Feminino , Seguimentos , Hemodinâmica , Hemorreologia , Humanos , Cuidados Intraoperatórios , Ligadura , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Radiologia Intervencionista , Recidiva , Veia Safena/diagnóstico por imagem , Veia Safena/cirurgia , Transiluminação , Resultado do Tratamento , Ultrassonografia , Varizes/diagnóstico por imagem , Grau de Desobstrução Vascular , Pressão Venosa
10.
Ann Vasc Surg ; 12(4): 324-9, 1998 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-9676928

RESUMO

Venous compliance reflects the mechanical properties of the vein wall. Clinical methods of measurement have not been validated by comparison with the accepted in vitro measurement. Despite this, clinical assessment of vein compliance may have a series of useful applications: (1) to assess the progression of chronic venous insufficiency and the related hemodynamic forces acting on the saphenous vein wall; (2) to determine the suitability of the saphenous vein for replacement of an arterial conduit by testing its mechanical properties; and (3) to select the saphenous vein with preferable mechanical performance for coronary artery bypass. The aim of this study is to assess the relationship between in vitro and two in vivo methods of compliance measurement. Compliance of the saphenous vein was determined in 20 patients, using both an invasive and a noninvasive (A and B, respectively) method. Duplex scanning was used for diameter measurement. Venous pressure was derived either intravenously with a needle transducer, or noninvasively with limb length measurement. Patients underwent saphenous excision with further in vitro compliance measurement of the same vein segment (method C). The compliance values obtained with the three methods showed different degrees of correlation (r= 0.516, p = 0.0001 for method A versus method C; r = 0.658, p = 0.0001 for method B versus method C; r = 0.993, p = 0.0001 for method A versus method B). The relationships with the in vitro measurements that were determined validate both in vivo methods for assessment of saphenous vein compliance. Due to its completely noninvasive design, method B appears to have potential use for clinical assessment of saphenous vein wall properties.


Assuntos
Ponte de Artéria Coronária , Hemodinâmica/fisiologia , Veias/transplante , Insuficiência Venosa/fisiopatologia , Fenômenos Biomecânicos , Complacência (Medida de Distensibilidade) , Humanos , Técnicas In Vitro , Valores de Referência , Veia Safena/fisiopatologia , Veia Safena/transplante , Sensibilidade e Especificidade , Varizes/diagnóstico , Varizes/fisiopatologia , Veias/fisiopatologia , Insuficiência Venosa/diagnóstico , Pressão Venosa/fisiologia
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