Patch Plasty Technique Research Articles

Surgical Decision Making for Left Ventricular Aneurysmectomy

Left ventricular aneurysms may be repaired by the linear technique or endoventricular circular patch plasty technique. Choice of technique should be based on the individual patient, including cavity and aneurysm geometry. In this article, we describe the principles underlying decision making with 2 illustrative cases.

Clinical analysis of surgical treatment of post-infarction left ventricular aneurysm: a series of 254 patients

Objective: To examine the efficacy of two surgical procedures on post-infarction left ventricular aneurysm. Methods: The clinic data of 254 patients with post-infarction left ventricular aneurysm, who underwent surgical ventricular reconstruction between January 1997 and December 2019 in Department of Cardiovascular Surgery, Nanjing Hospital Affiliated to Nanjing Medical University was analyzed retrospectively. There were 183 males and 71 females aged from 31 to 81 years, with a median age of 64.6 years. Based on the size of the ventricular aneurysm, there were 73 patient received linear reconstruction (linear group) and 181 patients received endoventricular patch plasty technique (patch plasty group). Ejection fraction, left ventricular systolic and end diastolic volume and left ventricular systolic and end diastolic volume index were recorded preoperatively, 2-week, 3-month, 1-year and 5-year after operation. The survival curves were plotted with Kaplan-Meier method and the survival rates were compared by Log-rank test. Results: All patients underwent surgery with a mean cardiopulmonay bypass duration of (92±32) minutes (44 to 196 minutes) and aortic cross clamp duration of (67±22) minutes (33 to 152 minutes).There were 9 perioperative deaths with a mortality rate of 3.5%. Angina pectoris of other cases are relief and heart function improved greatly. Five years after operation, the percentage of cardiac function (New Yord Heart Association) class Ⅲ to Ⅳ patients decreased from 96.1%(244/254) to 9.9%(16/161). There was no significant difference in survival rate between linear group and patch plasty group at 1-, 3-, 5-years postoperatively (96%, 91%, 77% vs. 96%, 90%, 79%, P=0.562). Ejection fraction increased from (39±10)% (range: 22% to 50%) preoperatively to (46±6)% (range: 39% to 54%) 1-year postoperatively in the linear group, while increased from (38±13)% (range: 26% to 51%) preoperatively to (50±6)% (range: 39% to 55%) in the patch plasty group. Conclusions: Left ventricular reconstruction is quite effective for patients with post-infarction left ventricular aneurysm. The choice of operative approaches is determined by the size and range of ventricular aneurysm. Both linear reconstruction and endoventricular patch plasty technique can got similarly surgical outcomes with near and late curative effect.

Endophlebectomy of the common femoral vein and endovascular iliac vein recanalization for chronic iliofemoral venous occlusion

BackgroundChronic post-thrombotic occlusion of the iliofemoral veins causes significant morbidity, which can be alleviated if venous drainage is restored. We report our technique of surgical endophlebectomy and patchplasty of the common femoral vein (CFV) in conjunction with iliac vein stenting to restore venous flow from the infrainguinal venous system to the vena cava. MethodsThere were 157 patients who underwent CFV endophlebectomy combined with iliocaval recanalization. Questionnaires were completed both preoperatively and postoperatively to allow comparison. These included the Clinical, Etiology, Anatomy, and Pathophysiology clinical classification; the Venous Clinical Severity Score; the Villalta scale; the Venous Insufficiency Epidemiological and Economic Study on Quality of Life/Symptoms; and the 36-Item Short Form Health Survey quality of life questionnaire. ResultsMean follow-up duration was 14.4 ± 2.9 months (range, 10-29 months). The mean preoperative Venous Clinical Severity Score was 15.3 ± 2.2, and this fell to 6.1 ± 1.8 after treatment (P < .001). The mean preoperative Villalta score dropped from 12.7 ± 2.6 to 6.3 ± 1.4 (P < .001). The quality of life and symptom severity scores were improved after 3 months by 17.2 points for quality of life (P < .001) and 20.5 points for symptom severity (P < .001). Primary patency was 81% (124/153) and secondary patency was 89.5% (137/153) at 12 months. Wound complications related to groin incision and lymphatic fistulas were observed in 22.8% (35/153) and 28.7% (44/153), respectively. ConclusionsThe hybrid operation of CFV endophlebectomy in conjunction with iliac vein recanalization should be considered a safe and effective treatment option in patients with severe post-thrombotic syndrome and iliofemoral veno-occlusive disease.

Laparoscopic Approach to Inguinal Disruption in Athletes: a Retrospective 13-Year Analysis of 198 Patients in a Single-Surgeon Setting

BackgroundInguinal disruption (ID) is a condition of chronic groin pain affecting mainly athletes. ID cannot be defined as a true hernia. Pathogenesis is multifactorial due to repetitive and excessive forces applied to the inguino-pelvic region. Examination reveals tenderness to palpation of the inguinal region. Differential diagnosis is challenging; imaging is helpful for excluding other pathologies. Surgery is the treatment of choice when conservative treatment fails. Primary aim of the study was to evaluate the time to return to full sport activity after transabdominal preperitoneal patch plasty (TAPP) technique in ID. Secondary aim was to evaluate the postoperative complication rate both in the immediate post-operative time and in 1 year follow-up and to verify the relapse rate after surgery. In this study, we consider time to return to full sport activity as the time needed to return to pre-injury sport activity.ResultsA retrospective study is reported by evaluating 198 cases of ID from a single surgeon experience. All patients failed a previous conservative treatment. All cases were treated with the TAPP approach. Time to return to full sport activity was 4 weeks for 94.4% of patients, with a total of 98.5% of active patients at 9 months. Post-operative inguinal pain was the main complication (9.1%). On 13 years follow-up, we report a recurrence rate of 2.5%.ConclusionsCurrent management algorithm for ID, in professional athletes, supports the role of surgery after at least 2 months of conservative treatment. Recently, the role of surgery has been highlighted for a definitive treatment and a faster full recovery to sport activity, especially for elite professional athletes. In our opinion, laparoscopic surgery is the mainstay for non-responsive ID treatment. We present a long-term retrospective evaluation of a wide cohort of professional athletes diagnosed and treated in a systematic way.

Akut üst ekstremite arteryel embolileri: 2 yıllık klinik deneyimimiz

Objective: Extremity thromboembolism is a serious cause of morbidity and mortality in cardiovascular diseases. Comparing with the lower extremity arteries, upper extremity acute arterial occlusions are rarer and constitute 15-32% of all cases. Trauma, collagen vascular diseases, malignant tumors, myxoma, subclavian artery stenosis, myocardial infarction and thromboangiitis obliterans are often identified as etiologic factors. The first option in the treatment of these patients is surgical embolectomy. Endarterectomy, patchplasty and arterial bypass operations can be counted in treatment options of chronic patients. Material and Methods: In this study, we retrospectively analyzed clinical features and prognosis of 58 patients consisting of 31 women and 27 males who were admitted to our emergency department with acute arterial embolism. Results: Mean age of our group was 67.05±17.09. Proximal brachial artery thrombosis was found in 3 patients. The other 55 patients had thrombosis in the brachial artery and its distal branches. After the diagnosis of patients in the emergency room 100 units/kg of subcutaneous enoxaparine was applied. Selective arterial embolectomy surgery was performed under local anesthesia in all patients with access from the antecubital region. Arteriotomy was closed using saphenous patch plasty technique in two patients. Compared with preoperative demographic data and thromboembolism etiology, 21 (36%) patients were diagnosed as atrial fibrillation. Those patients had not been followed and treated for atrial fibrillation. In 5 (8.6%) patients malignancy was detected as an etiologic factor. Four (6.8%) patients died during their follow-ups in the clinic, 3 (75%) of those patients had an atrial fibrillation. Conclusion: Acute peripheral arterial occlusion constitutes a significant part in emergency vascular surgery. Therefore early diagnosis and prompt surgical treatment are very important for the results. Atrial fibrillation (AF) holds an important place in upper extremity acute arterial occlusion, but other etiological factors such as malignancy is necessary to not forget. AF who has acute upper extremity arterial embolism patients with AF have higher mortality rates and the clinical management and treatment of those patients must be monitored more closely. We believe that the development of treatment modalities and further work needs to be done in order to find an appropriate treatment.

Effectivity of laparoscopic inguinal hernia repair (TAPP) in daily clinical practice: early and long-term result.

The aim of the study was to investigate the effectiveness of laparoscopic inguinal hernia repair in daily clinical practice. All patients admitted to the hospital for surgery of an inguinal hernia during a 1-year period were prospectively documented and included in a follow-up study. The follow-up was performed at least 5years after surgery and consisted of a clinical examination, ultrasound investigation and a questionnaire. From January 2000 to January 2001 a total of 1208 inguinal hernias in 952 patients were consecutively operated by a total of 11 general surgeons in daily clinical routine. Of the patients, 98.02% were operated on laparoscopically with the transabdominal preperitoneal patch plasty technique (TAPP) and 1.98% had an open repair. The frequency of intraoperative and early postoperative complications was 2.8%. The complication rate in the patients presenting a complex hernia was not higher than in patients with uncomplicated unilateral hernias. Life-threatening complications were seen in four patients (bowel lesion-0.4%), but all four patients presented extensive adhesions in the abdominal cavity after previous abdominal surgery. The follow-up rate after 5years was 85.3%. After 5years the recurrence rate was 0.4% and the rate of severe chronic pain 0.59%. None of the patients took analgesics or had to change his occupation. Laparoscopic repair can be applied to all types of inguinal hernia as a daily routine procedure with low rates of recurrences and chronic pain. Limiting factor may be extensive adhesions after previous major surgery in the lower abdomen.

Long-term Results of the Single-Patch Repair Technique for Sinus Venosus Atrial Septal Defects

Anomalous pulmonary venous drainage commonly accompanies sinus venosus atrial septal defects (SVASDs). Many techniques have been reported for avoiding postoperative complications, such as narrowing of the superior vena cava (SVC) or the pulmonary system, and arrhythmia. We perform a single V-Y pericardial patch plasty repair technique for SVASDs. The purpose of this study is to report on the long-term results of this surgical technique. We retrospectively analyzed patients who had a diagnosis of ASD and who underwent their operations between 2000 and 2010 at the Gulhane Military Medical Academy Haydarpasa Training Hospital. Thirty-nine of the patients had an anomalous pulmonary return, and the single pericardial patch technique had been performed in 32 of these patients. The mean (±SD) postoperative extubation time was 5 ± 1.6 hours. The mean drainage volume was 384 ± 137 mL. All patients were discharged from the hospital at a mean of 4.6 ± 1.1 days after their operation and were prescribed anticoagulants for 3 months. No perioperative or late-term mortality was observed. Patients were followed up for 6 months to 2 years. There were no residual shunts and no stenosis-related findings in the pulmonary venous system or the SVC. Use of the single pericardial patch plasty technique might lower complication rates in patients with SVASD, especially those who have not completed their growth.

Restoration of optimal left ventricular apical geometry and rotation following surgical ventricular restoration using rectangular patch plasty technique: a pilot study using cardiac magnetic resonance.

Clinical outcomes of surgical ventricular restoration (SVR) have been confirmed by Registry data. Accurate assessment of left ventricular (LV) morphology and function can help optimize these outcomes. LV remodelling in 7 patients (NYHA class 3 ± 1.2) with post-myocardial infarction LV aneurysms was characterized by the regional LV volume (RLVV) computed by dividing the LV in cine steady-state free precession cardiac magnetic resonance imaging (CMR) at each slice level into six radial segments. Rotation of the LV apex and base was analysed using tagged CMR. The apical conicity ratio was used to characterize the restored apical geometry. The mean end-diastolic volume (EDV) was 174.8 ± 100.3 ml and the mean ejection fraction (EF) was 18.8 ± 7.8%. Following SVR, all patients had significant clinical improvements (NYHA Class I), and significant increases in the left ventricular ejection fraction (LVEF) to 38.8 ± 4.4%. The LV volumes and regional volumes at the base and apex decreased with a trend towards significance. The mean preoperative apical conicity ratio (ACR) was 1.90 ± 0.43 and, following SVR by endoventricular linear patch plasty (EVLPP), was 1.35 ± 0.3 (P = 0.02). The percent decrease in the ACR following SVR from baseline was 28.68 ± 10.98%. The apical EF increased from 1.19 ± 13.9 to 15.8 ± 8.2% (P = 0.028). The basal rotations improved from 3.13 ± 2.1 to 4.69 ± 2.94° (P = 0.04). The apical rotations also improved significantly from 2.48 ± 1.23 to 3.93 ± 2.45° (P = 0.05) and reversed to the normal anticlockwise direction. SVR by geometric repair using a rectangular intracavitary patch helps restoration of a physiological apex with normalization of apical rotation reflecting a near-physiological LV function.

Restoration of optimal ellipsoid left ventricular geometry: lessons learnt fromin silicosurgical modelling

Several issues that are inherent in the surgical techniques of surgical ventricular restoration (SVR) need specialized devices or techniques to overcome them, which may not always result in optimal outcomes. We used a non-invasive novel in silico modelling technique to study left ventricular (LV) morphology and function before and after SVR. The cardiac magnetic resonance imaging derived actual pre- and postoperative endocardial morphology and function was compared with the in silico analysis of the same. Cardiac magnetic resonance steady state free precession (SSFP) cine images were employed to segment endocardial surface contours over the cardiac cycle. Using the principle of Hausdorff distance to examine phase-to-phase regional endocardial displacement, dyskinetic/akinetic areas were identified at the instant of peak basal contraction velocity. Using a three-dimensional (3D) surface clipping tool, the maximally scarred, dyskinetic or akinetic LV antero-apical areas were virtually resected and a new apex was created. A virtual rectangular patch was created upon the clipped surface LV model by 3D Delaunay triangulation. Presurgical endocardial mechanical function quantified from cine cardiac magnetic resonance, using a technique of spherical harmonics (SPHARM) surface parameterization, was applied onto the virtually clipped and patched LV surface model. Finally, the in silico model of post-SVR LV shape was analysed for quantification of regional left ventricular volumes (RLVVs) and function. This was tested in 2 patients with post-myocardial infarction antero-apical LV aneuryms. Left ventricular mechanical dysynchrony was evaluated by RLVV analysis of pre-SVR, in silico post-SVR and actual post-SVR LV endocardial surface data. Following exclusion of the scarred areas, the virtual resected LV model demonstrated significantly lesser areas of akinesia. The decreases in regional LV volumes in the in silico modelling were significant and comparable with the actual decreases following SVR. Both the regional end diastolic volume (EDV) and end systolic volume (ESV) at the apex decreased significantly corresponding to greater reductions in apical volumes by the technique of rectangular patch plasty (apical EDV 2.1607 ± 0.20577 to 0.4774 ± 0.1775 ml, P = 0.007; apical ESV 1.9708 ± 0.36451 to 0.442 ± 0.047 ml, P = 0.013). This pilot study was done using novel in silico techniques for virtual surgical modelling, which helped in accurate estimation and planning of optimal LV restoration by SVR.

Surgical treatment of post-infarction left ventricular aneurysm: clinical analysis

To explore the clinical experiences, efficacies and postoperative left ventricular remodeling changes of surgical ventricular reconstruction in the treatment of post-infarction left ventricular aneurysm. The investigators reviewed retrospectively the clinical data, operative approaches and follow-up outcomes of consecutive 194 patients with post-infarction left ventricular aneurysm, who underwent surgical ventricular reconstruction between January 1997 and December 2009. There were 54 cases in the linear group and 137 cases in the endoventricular patch plasty group. The changes of ventricular remodeling were measured by peri-operative and follow-up echocardiography. All patients underwent surgery with a mean cardiopulmonary bypass duration of (103 ± 35) min and aortic cross clamp duration of (62 ± 26) min. There were 8 per-operative deaths with a mortality rate of 2.2%. Angina pectoris of other cases disappeared and heart function greatly improved. After operation, the ventricular remodeling results showed that in the linear group, there was not significant difference in the changes of ventricular remodeling of post-op 2 weeks, 6 months, 1 year and 5 years versus pre-operation. However, in the endoventricular patch group, the changes of ventricular remodeling of post-op 2 weeks and follow-up 6 months versus pre-operation were significantly reduced (P < 0.05). End-systolic volume (LVESV) reduced from (129 ± 27) ml to (65 ± 8) ml and end-systolic volume index (LVESVI) decreased from (104 ± 14) ml/m(2) to (44 ± 6) ml/m(2) and the subgroup of LVEF < 35% was the most significant in the changes of LVESV and LVESVI. But LVEF improved significantly at post-operation and follow-up (from preoperation 42% ± 11% to 52% ± 7% during follow-up). For patients with infarction left ventricular aneurysm, left ventricular reconstruction is quite effective. The choice of operative approaches is determined by the size and range of ventricular aneurysm. Both string suture and endoventricular patch plasty technique can yield similarly satisfactory surgical outcomes. After operation, ventricular volume significantly decreases and cardiac function greatly improves.

Patch size, shape and orientation affect geometrical outcomes of surgical anterior ventricular restoration

To verify whether the use of a small, oval-shaped patch limits the trend toward re-dilatation compared to endoventricular circular patch plasty and leads to different geometrical and functional results in surgical anterior restoration. Thirty-seven patients with ischemic cardiomyopathy after anterior myocardial infarction end-systolic volume index of > or =45 ml/m2, ejection fraction of < or =35%, and no combined mitral procedures, underwent surgical anterior ventricular restoration between January 2000 and April 2003: 18 patients (group 1) were operated on using the endoventricular circular patch plasty technique (mean patch area 9.6 cm2) and 19 patients (group 2) received a small, obliquely oriented, oval-shaped patch (mean patch area 6.2 cm2). Ten geometrical parameters were studied preoperatively and at least 6 and 12 months after surgery. Data were analyzed using repeated-measures ANOVA, chi2, paired and unpaired Student's t-test, and binary logistic regression. Group 1 showed a worsening over time in systolic and diastolic longitudinal length, end-diastolic volume (P < 0.001), end-diastolic volume index (P = 0.006), end-systolic volume (P = 0.005), and end-systolic volume index (P = 0.03). Group 2 showed an improvement in percentage of akinesia and wall motion score index (P < 0.001) and a worsening only in end-systolic diameter (P = 0.03) and end-diastolic volume (P = 0.04). At 12-month follow-up, ANOVA revealed that the oval patch positively influenced end-diastolic volume (P = 0.03), end-systolic volume (P = 0.03), and end-systolic volume index (P = 0.05), and group 2 had a significantly higher number of patients with an end-systolic volume index of <45 ml/m2 (P = 0.01). The use of a small, narrow, obliquely oriented, oval patch may help to prevent adverse ventricular remodeling over time.

Saphenous Vein Patch Plasty to Correct Saphenous Graft and Aortotomy Mismatch

Mismatch of aortotomy and saphenous vein graft size occasionally occurs and can compromise the contour of the anastomosis thereby jeopardising its patency. We describe an alternative technique of saphenous vein patch plasty to overcome this complication by giving a more desirable hooded contour to the anastomosis. This results in improved graft patency, hemostasis and clinical outcome.

Influence of Titanium Coating on the Biocompatibility of a Heavyweight Polypropylene Mesh

Introduction: In light of the fact that, to date, no information is available about titanium relative to its application in prosthetic material employed for hernial repair, the aim of the present work was to evaluate the fundamental possibilities of titanium-coated polypropylene meshes. Materials and Methods: In experiments with animals, two groups, each containing 11 pigs, received either a heavyweight polypropylene mesh (Atrium^®) or an identical but titanium-coated mesh (titanium-coated Atrium) implanted into the left groin using the totally endoscopic extraperitoneal patchplasty technique. Results: A significant difference in the shrinkage behavior between conventional Atrium and titanium-coated Atrium was found (14.9 vs. 8.8%, p < 0.05). Furthermore, the partial volume of the inflammatory infiltrate also proved to be smaller with the titanium-coated mesh (14.9 vs. 12.4%). In addition, Ki-67 expression was lower in the group implanted with titanium-coated mesh (21.0 vs. 15.0%). No difference was observed with regard to the apoptosis index (7.6 vs. 6.5). Conclusions: Heavyweight titanium-coated polypropylene meshes induce a less pronounced foreign body reaction in comparison with identical meshes with no titanium coating, which, since the amount of material implanted is identical, must be attributed solely to the titanium coating.

Eficiência da correção endoventricular com patch em pacientes com grande área acinética pós-infarto do miocárdio e severa disfunção ventricular

PURPOSE: Efficacy of endoventricular patch plasty in large postinfarction akinetic scar and severe left ventricular dysfunction. METHODS: This study evaluated clinical and hemodynamic results of endoventricular circular patch plasty in patients with either large akinetic scar (n=9) or large dyskinetic scar (n=11) and depressed left ventricular function (ejection fraction < 35%). The difference between akinetic and dyskinetic left ventricular aneurysms was diagnosed by gated radionuclide ventriculography. Groups were comparable for symptons and by echocardiography and by hemodynamic before and after the surgery. RESULTS: Results showed an early improvement in New York Heart Association functional class. Statistically (the Student t test) an improvement occurred in left ventricle ejection fraction (from 25 ± 0.8% to 39 ± 1.6% in akinetic patients and from 27 ± 0.7% to 41 ± 1.6% in dyskinetic patients), decreased of capillary wedge pressure (20 ± 1.2 mmHg to 12 ± 1.2 mmHg in akinetics and 17 ± 0,5 mmHg to 11 ± 0.9 mmHg in dyskinetics patients), decrease end-diastolic volume index (226 ± 11 ml to 115 ± 7,8 ml in akinetics and 209 ± 11ml to 96 ± 5ml in dyskinetics) and end-systolic volume index (176 ± 9.2 ml to 77 ± 6.2 ml in akinetics and 160 ± 10ml to 66 ± 2ml in dyskinetics patients. Overall operative mortality was 10% (2 cases in akinetic group = 22.2%). CONCLUSION: We find that endoventricular circular patch plasty technique allows an effective correction and provides a significant improvement in cardiac function in patients with large postinfarction akinetic scar and severe left ventricular dysfunction.

The endoventricular circular patch plasty ("Dor procedure") in ischemic akinetic dilated ventricles.

From 1984 to 2000, 950 Left Ventricular ischemic asynergy (dyskinetic or akinetic) were operated using the endoventricular circular patch plasty technique. This allows to exclude all asynergic areas of the left ventricular wall and reshape the remaining wall. Both morphology and hemodynamic of left ventricle, are improved. Hospital mortality was below 7%. Life expectancy at 10 years reaches 80% if pre-operative L.V.E.F. is above 30%, and end systolic volume index (E.S.V.I.) below 90[emsp4 ]ml, and 60% in L.V.E.F. is below 30% and E.S.V.I. above 90[emsp4 ]ml. L.V.R. by endoventricular plasty has to be considered in the treatment of ischemic congestive heart failure.

Remodelamento do ventrículo esquerdo pela técnica da endoventriculoplastia com exclusão septal: experiência inicial

OBJETIVO: Neste trabalho apresentam-se os resultados iniciais do tratamento cirurgico de aneurismas anteriores do ventriculo esquerdo (Aneu VE), pela tecnica de Dor, endoventriculoplastia circular, com exclusao septal, baseada nos conceitos de Hutchins & Bulkley, da geometria do VE e da sua reconstrucao geometrica, e nos da operacao da reducao circular de Jatene. CASUISTICA E METODO: No periodo de abril a outubro de 1999, foram realizados 6 procedimentos para a correcao de Aneu VE, com a tecnica de Dor. O tempo entre o infarto de parede anterior e a operacao variou de 8 dias a 10 meses, sendo que 3 pacientes se encontravam na classe III, 2 na classe IV e 1 na classe I da NYHA. Quatro pacientes eram do sexo masculino e a idade media do grupo era de 58,3 anos. No estudo hemodinâmico pre-operatorio, a fracao de ejecao global variou de 27 a 46% (media de 37,2%), o volume sistolico final de VE de 64,4 a 135,3 ml (media de 107,9 ml) e o volume diastolico final de VE de 132,9 a 236,4 ml (media de 183,8 ml). A operacao foi associada a retirada de trombos do VE em 3 casos, a revascularizacao coronaria concomitante em 5 casos, com o uso de 10 enxertos venosos e 3 arteriais (2,2 enxertos/paciente) e uma endarterectomia. A parede anterior foi revascularizada em 9 casos e as paredes, lateral e inferior, em 2 cada. Os tempos medios de pincamento aortico e circulacao extracorporea foram, respectivamente, 44 e 110 minutos. RESULTADOS: O tempo medio de permanencia hospitalar pos-operatoria foi de 7,7 dias. Os pacientes foram seguidos de 5 a 31 semanas, sendo que todos se encontram na classe funcional I; em 3 casos o cateterismo cardiaco foi realizado e nos outros 3, um ecocardiograma bidimensional, para avaliacao da fracao de ejecao global, que variou de 42,5 a 60% (media de 49,4%), com melhora de 32,8% em relacao a inicial. CONCLUSAO: Diante destes resultados, pode-se considerar que esta seja mais uma tecnica para a melhoria da funcao e da nova geometria do VE, em casos de correcao cirurgica de Aneu VE.

Left ventricular restoration by endoventricular circular patch plasty (EVCPP).

The Endoventricular Circular Patch Plasty technique, developed to reorganize the left ventricular cavity after post-ischemic modification, is described as it has been used since 1984. Experience of more than 900 cases demonstrates the efficiency of the technique in terms of left ventricular shape, left ventricular performances and long-term clinical results. Particular attention is focused on very large asynergia with congestive heart failure.

Successful reoperation for diffuse supravalvular aortic stenosis

We reoperated for diffuse supravalvular aortic stenosis using a modified technique of patch plasty described by Brom. A 36-year-old woman admitted to our hospital with a peak systolic pressure gradient of 92 mmHg across the ascending aorta had previously undergone Doty's operation at another hospital. Aortography showed an ascending aorta diffusely stenotic from the sinotubular junction to the aortic arch. We transected the ascending aorta just above the stenotic portion and incised the proximal wall to the sinus of Valsalva. Three patches were sewn to each sinus to expand them and the ascending aorta. The pressure gradient decreased postoperatively to 11 mmHg, and we conclude that this technique sufficiently relieves diffuse supravalvular aortic stenosis.

Surgical Management of Left Ventricular Aneurysms by the Endoventricular Circular Patch Plasty Technique

Surgical Management of Left Ventricular Aneurysms by the Endoventricular Circular Patch Plasty Technique

Patchplasty with expanded polytetrafluoroethylene and skinplasty for the closure of large congenital abdominal wall defects

A combined technique of patchplasty with expanded polytetrafluoroethylene (PTFE) and a special skinplasty is described for congenital abdominal wall defects where the abdominal cavity needs enlargement but skin closure is primarily possible. The patchplasty consists of suturing two half-moon-shaped, expanded PTFE leaves to the sides of the muscular abdominal wall, then approximating them under observation of intra-abdominal pressure by monitoring five parameters (urinary bladder pressure, central venous pressure, transcutaneous oxygen saturation, ventilation pressure, and mean arterial pressure). The skin is incised in a horizontal manner according to the tension lines. However, after closure, regional necrosis of the skin in the mid-portion above the incision is often observed due to lack of sufficient subcutaneous tissue at this site. Therefore, a skinplasty is done as a preventive measure, resecting this potential site of necrosis. The final appearance of the skin is an inverted T-shape. The surgical and monitoring techniques are described and illustrated.