BACKGROUND: Aortic valve replacement (AVR) is the definitive therapy for patients with severe aortic valve stenosis (AoS). The aim of this work is to compare the effect of a mechanical prosthesis (MP) and a bioprosthesis (BP) on the survival of patients aged 50-65 years after AVR. METHODS: The retrospective analysis included 276 patients aged 50 to 65 years who had undergone isolated AVR for AoS; 161 patients were implanted with an MP and 115 with a BP. Patient survival, adjusted for age, gender and risk parameters affecting survival, was assessed. A subgroup analysis was performed on the 208 patients with a modern valve (prosthesis models that are no longer used in clinical practice were removed from the sample). RESULTS: After adjusting for risk factors for overall survival as well as for age and sex, the implantation of an MP did not have a significant effect on overall survival in comparison to a BP, at a median follow-up of 10.3 years (p = 0.477). The size of the MP had no significant effect on overall survival either (HR: 1.29; 95%CI: 0.16-10.21; p = 0.812). However, the indexed effective orifice area of the BP had a positive effect on overall survival (HR: 0.09; 95%CI: 0.01-0.78; p = 0.029). CONCLUSIONS: The estimated survival of patients aged between 50 and 65 years after implantation of a BP with a sufficiently large indexed effective orifice area may exceed that of patients with an MP.
- Publikační typ
- časopisecké články MeSH
1. vydání xiii, 212 stran : ilustrace ; 26 cm
Publikace se zaměřuje na různé nemoci hrudní aorty. Určeno odborné veřejnosti
- Konspekt
- Patologie. Klinická medicína
- NLK Obory
- angiologie
- NLK Publikační typ
- kolektivní monografie
Reconstruction of right ventricular outflow tract in patients with congenital heart disease in various age groups remains a controversial issue. Currently, a little is known about the fate of secondary and subsequent conduit. The aim of the study was to determine risk factors of conduit failure, evaluate long-term conduit survival, find out which type of conduit should be preferred in case of reoperations. We performed a retrospective analysis of a total of 249 records of valved conduit secondary and subsequent replacement in right ventricular outflow tract in 197 patients. Median follow-up was 5.7 years. The study endpoints were defined as conduit explants; balloon dilatation of the graft (excluding balloon dilatation of left/right pulmonary artery), transcatheter pulmonary valve implantation; heart transplantation or death of the patient. There were total of 21 deaths (11% mortality) among 197 patients during the follow-up, 2 patients underwent heart transplant, in 23 implanted conduits pulmonary angioplasty or/including transcatheter pulmonary valve implantation was afterwards performed due to graft failure, conduit had to be explanted in 46 cases. After 28 years follow-up, freedom from graft failure after 5 years was 77%, 48% after 10 years and 21% after 15 years. Reoperative right ventricular outflow tract reconstruction demonstrates good mid-term and acceptable long-term outcomes regardless of the type of conduit implanted. Worse long-term graft survival of secondary and further conduits is associated with younger age of the recipient at implantation, small size of the conduit, younger age of donor and male donor in case of allograft implantation.
Computed tomography 3D reconstruction of a patient with Bland-White-Garland syndrome showing a dilated right coronary artery and thin left coronary artery.
- MeSH
- anomálie koronárních cév * diagnostické zobrazování chirurgie MeSH
- arteria pulmonalis diagnostické zobrazování abnormality MeSH
- lidé MeSH
- počítačová rentgenová tomografie MeSH
- syndrom Bland-White-Garland * diagnostické zobrazování chirurgie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- kazuistiky MeSH
Dilatace kořene a/nebo ascendentní aorty je spjata s vyšším rizikem akutní disekce. U nemocných bez chlopenní vady, kteří nesplňují kritéria pro její náhradu, byla v posledních letech zavedena do praxe metoda PEARS (personalized external aortic root support). Spočívá v implantaci na míru vyrobené dakronové síťky, která zabrání progresi dilatace aorty. V práci jsou prezentovány výsledky prvních 100 implantací této síťky u pacientů v České republice. Soubor nemocných a metodika: Soubor tvořilo 77 mužů a 23 žen, průměrného věku 40,4 ± 15,3 roku. U 87 pacientů byla prokázána geneticky podmíněná aortopatie (porucha pojivové tkáně a/nebo bikuspidální aortální chlopeň). U 14 pacientů byla aortální regurgitace větší než 1. st, ale u žádného větší než 2. st. Maximální rozměry aortálního kořene a ascendentní aorty byly 60, resp. 59 mm. Výsledky: U všech pacientů byla síťka úspěšně implantována, u 35 za srdeční akce bez mimotělního oběhu. V časném pooperačním průběhu byly u 35 pacientů přítomny klinické nebo laboratorní známky zánětu, u 23 pacientů přechodné supraventrikulární poruchy srdečního rytmu. Průměrná doba hospitalizace činila 8,4 ± 2,4 dne a žádný pacient v časném pooperačním průběhu nezemřel. Pacienti byli sledováni v průměru 18,1 ± 17,2 měsíce a na kontrolním vyšetření došlo ve srovnání s předoperačními hodnotami k signifikantnímu zmenšení rozměrů kořene, sinotubulární junkce i ascendentní aorty. Závěr: Střednědobé sledování pacientů s dilatací aorty po implantaci PEARS ukázalo, že tato metoda brání dilataci aorty a je dobrým preventivním opatřením před možnou aortální disekcí.
Dilatation of the aortic root and/or ascending aorta is associated with an increased risk of acute dissection. Personalized external aortic root support (PEARS) is a new method that was introduced in last years for these patients without any significant valve disease who do not fulfil the criteria for aortic root or ascending aorta replacement. It is a custom-made macroporous mesh that stabilises the aortic wall. We present the results of the first 100 consecutive patients in whom PEARS was implanted.
- MeSH
- chirurgické síťky MeSH
- disekce aorty * chirurgie MeSH
- lidé MeSH
- retrospektivní studie MeSH
- Check Tag
- lidé MeSH
OBJECTIVES: To determine the long-term and transplantation-free survival of all patients after atrial correction of transposition of the great arteries (TGA) in the Czech and Slovak republics, including its preoperative and perioperative determinants. METHODS: Retrospective analysis of all 454 consecutive patients after atrial correction of TGA was performed. Of these, 126 (27.8%) were female, median age at operation was 7.4 months (Q1 5.3; Q3 13.3) and 164 (36.1%) underwent the Mustard procedure. The relationships between age, weight, the complexity of TGA, operative technique, additional surgical procedures, immediate postoperative presence of tricuspid regurgitation and revision procedures during follow-up to major composite outcome, as such defined as long-term and transplantation-free survival, were tested. RESULTS: Early 30-day mortality did not differ between the Mustard (9.76%) and Senning (8.97%) cohorts (p=0.866). The long-term and transplantation-free survival, which differed between the Mustard and Senning cohorts in favour of the Senning procedure (HR 0.43; 95% CI 0.21 to 0.87), was shorter in complex TGA (HR 2.4; 95% CI 1.59 to 3.78) and in complex surgical interventions (HR 3.51; 95% CI 2.31 to 5.56). The immediate presence of at least moderate tricuspid regurgitation after correction was associated with a shorter long-term and transplantation-free survival in the univariate but not in the multivariable model. CONCLUSIONS: The lower long-term survival of patients after an atrial switch operation of TGA in the Czech and Slovak republics is associated with greater complexity of TGA, complex surgical interventions and application of the the Mustard operative procedure.
- MeSH
- arterie MeSH
- kojenec MeSH
- korekce transpozice velkých arterií * škodlivé účinky MeSH
- lidé MeSH
- následné studie MeSH
- retrospektivní studie MeSH
- transpozice velkých cév * MeSH
- trikuspidální insuficience * chirurgie MeSH
- výsledek terapie MeSH
- Check Tag
- kojenec MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
INTRODUCTION: Cryopreserved allograft heart valves (CAHV) show longer event-free survival compared to other types of protheses. However, all patients develop early and/or late allograft failure. Negative predictors are clinical, and there is a lack of evidence whether they correspond with the microscopic structure of CAHV. We assessed histopathological signs of structural degeneration, degree of cellular preservation, and presence of antigen-presenting cells (APC) in CAHV and correlated the changes with donor clinical characteristics, cryopreservation times, and CAHV types and diameters. METHODS: Fifty-seven CAHV (48 pulmonary, nine aortic) used for transplantation between November/2017 and May/2019 were included. Donor variables were age, gender, blood group, height, weight, and body surface area (BSA). Types and diameters of CAHV, cold ischemia time, period from decontamination to cryopreservation, and cryopreservation time were recorded. During surgery, arterial wall (n=56) and valvar cusp (n=20) samples were obtained from the CAHV and subjected to microscopy. Microscopic structure was assessed using basic staining methods and immunohistochemistry (IHC). RESULTS: Most of the samples showed signs of degeneration, usually of mild degree, and markedly reduced cellular preservation, more pronounced in aortic CAHV, correlating with arterial APC counts in both basic staining and IHC. There was also a correlation between the degree of degeneration of arterial samples and age, height, weight, and BSA of the donors. These findings were independent of preservation times. CONCLUSION: CAHV show markedly reduced cellular preservation negatively correlating with the numbers of APC. More preserved CAHV may be therefore prone to stronger immune rejection.
- MeSH
- alografty MeSH
- aortální chlopeň chirurgie patologie MeSH
- dárci tkání * MeSH
- homologní transplantace MeSH
- kryoprezervace * MeSH
- lidé MeSH
- srdeční chlopně transplantace MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- MeSH
- diferenciální diagnóza MeSH
- lidé MeSH
- poranění srdce * diagnóza klasifikace patologie terapie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- přehledy MeSH
- MeSH
- aneurysma hrudní aorty chirurgie diagnóza klasifikace patologie MeSH
- bolesti na hrudi diagnóza etiologie patologie MeSH
- disekce hrudní aorty chirurgie diagnóza klasifikace patologie MeSH
- ischemická choroba srdeční chirurgie diagnóza klasifikace patologie MeSH
- koronární bypass metody MeSH
- lidé MeSH
- mitrální insuficience chirurgie diagnóza patofyziologie patologie MeSH
- nádory srdce chirurgie diagnóza klasifikace patologie MeSH
- nemoci srdce * chirurgie diagnóza klasifikace patologie MeSH
- revaskularizace myokardu metody MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- přehledy MeSH
BACKGROUND: Critical limb ischemia (CLI) is considered the most severe pattern of peripheral artery disease. CLI is associated with high rates of morbidity and mortality with high risk of limb amputation. In the absence of appropriate autologous grafts, unsuitability of prosthetic bypasses, and endovascular methods, fresh cold-stored venous allografts is an option. Endovascular interventional methods are essential methods for maintaining primary and secondary patency. METHODS: A single-centre retrospective analysis of 82 surgical revascularizations using allogeneic vascular grafts and rescue endovascular techniques restoring and maintaining the patency of these allogeneic revascularizations in the period between July 2005 and July 2021. RESULTS: We have performed 82 allogeneic revascularizations in 75 patients (52 reconstructions in men/63.4%/, 30 reconstructions in women/36.6%/). The median age of patients was 68 years (49 min, 87 max). We subsequently had to intervene a total of 26 bypasses. We intervened in 30 acute occluded allogeneic bypass grafts and 9 failing stenotic bypass grafts. We performed 52 angiographies. The success rate of rescue endovascular procedures in primary allogeneic reconstruction with distal anastomosis to the popliteal artery is statistically significant (P < 0.02) compared to procedures with distal anastomosis to the tibial and pedal bed. The cumulative patency (primary at time) of allogeneic reconstructions in our group was 89% after 1 month, 51.9% after 12 months, 24.2% after 3 years, 9.8% after 5 years. Limb salvage was 72.6% in 1 year, 53% in 3 years, 36.5% in 5 years, respectively. CONCLUSIONS: Cold-stored venous allografts may be used for performing below-the-knee revascularization for CLI with acceptable results, despite the poor long-term patency. Rescue endovascular techniques are an essential method for restoring or maintaining the patency of these reconstructions. These techniques have a high success rate and no other alternative.
- MeSH
- alografty chirurgie MeSH
- endovaskulární výkony * škodlivé účinky MeSH
- ischemie diagnostické zobrazování chirurgie MeSH
- lidé MeSH
- onemocnění periferních arterií * diagnostické zobrazování chirurgie MeSH
- průchodnost cév MeSH
- retrospektivní studie MeSH
- senioři MeSH
- výsledek terapie MeSH
- záchrana končetiny MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
