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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Miego arterijų angioplastikos ir stentavimo ankstyvųjų bei vėlyvųjų rezultatų ir jiems poveikį darančių veiksnių tyrimas / Evaluation of early and late results and predetermining factors after carotid artery angioplasty and stenting

Misonis, Nerijus 04 October 2013 (has links)
Darbo tikslas – įvertinti miego arterijų angioplastikos ir stentavimo ankstyvuosius ir vėlyvuosius rezultatus bei poveikį darančius veiksnius. Metodai. Tyrimo metu vertintos VMAS procedūros atliktos 2006-2013 metais. Iš viso buvo atliktos 227 procedūros 211 pacientų; iš jų 156 (75,3 proc.) vyrams ir 55 (24,7 proc.) moterims. Rezultatai. Tyrimas atskleidė, kad esant 3 aortos lanko tipui VMAS procedūros trukmė buvo reikšmingai ilgesnė, o mikroembolai apsaugos sistemose buvo nustatyti dažniau. Mikroembolai apsaugos sistemose buvo nustatyti dažniau kai VMAS procedūra truko ilgiau. Apsaugos sistemos atliekant VMAS procedūrą buvo naudotos 70,9 proc. pacientų. Vyrams ir jaunesnio amžiaus pacientams VMAS procedūros metu apsauga buvo taikyta dažniau. Mikroembolai apsaugos sistemose buvo nustatyti 17,6 proc. pacientų ir dažniau buvo nustatyti naudojant FilterWire EZ ir Embo-shield-NAV apsaugos sistemas. Didesnė dešinės VMA stenozė buvo dažnesnė rūkantiems pacientams, o kairės VMA sirgusiems miokardo infarktu bei rūkantiems. Apsauga dažniau buvo taikyta pacientams kurie turėjo didelio laipsnio kairės VMA stenozę. Ankstyvuoju po procedūriniu periodu vyrų ir moterų mirštamumas atitinkamai buvo 1,2 proc. ir 1,8 proc., o 2 metų laikotarpyje buvo 18,7 proc. ir 28,6 proc. Pacientų mirštamumas 2 metų laikotarpyje, kuriems buvo naudotos apsaugos sistemos buvo mažesnis. Galimybę patirti komplikacijas (GSI ar PSIP) didino 3 aortos lanko tipas ir dešinės bendrosios miego arterijos stenozė, mažino... [toliau žr. visą tekstą] / The aim - to assess the carotid artery angioplasty and stenting early and late results and influencing factors. Methods. The study assessed CAS procedures performed in 2006-2013. A total of 227 procedures performed in 211 patients, of which 156 (75.3%) males and 55 (24.7%) females. Results. The study revealed that CAS procedure duration among patient with 3 aortic arch type was significantly longer and the microemboli protection systems were used more frequently. Protection systems were used more frequently when the CAS procedure lasted longer. Protection systems in CAS procedure was used in 70.9% patients. In men and younger patients protection system has been used more frequently. Microemboli in the protection systems have been identified by 17.6% patients and were more determined using the EZ FilterWire and Emboshield-NAV protection system. Increased right ICA stenosis was more common in patients who smoke, and left ICA with a history of myocardial infarction and smoking. Protection system was often used in patients who have had severe left ICA stenosis. The lethality rate in the early post procedural period among men and women was 1.2% and 1.8%, and in 2-year period was 18.7% and 28.6%, respectively. The lethality rate during 2-year period, which have been used for protective systems have been lower. The possibility to experience complications (stroke or TIA) increased 3 aortic arch type and the right common carotid artery stenosis, reduced protection systems using. Focal... [to full text]
2

Evaluation of early and late results and predetermining factors after carotid artery angioplasty and stenting / Miego arterijų angioplastikos ir stentavimo ankstyvųjų bei vėlyvųjų rezultatų ir jiems poveikį darančių veiksnių tyrimas

Misonis, Nerijus 04 October 2013 (has links)
The aim - to assess the carotid artery angioplasty and stenting early and late results and influencing factors. Methods. The study assessed CAS procedures performed in 2006-2013. A total of 227 procedures performed in 211 patients, of which 156 (75.3%) males and 55 (24.7%) females. Results. The study revealed that CAS procedure duration among patient with 3 aortic arch type was significantly longer and the microemboli protection systems were used more frequently. Protection systems were used more frequently when the CAS procedure lasted longer. Protection systems in CAS procedure was used in 70.9% patients. In men and younger patients protection system has been used more frequently. Microemboli in the protection systems have been identified by 17.6% patients and were more determined using the EZ FilterWire and Emboshield-NAV protection system. Increased right ICA stenosis was more common in patients who smoke, and left ICA with a history of myocardial infarction and smoking. Protection system was often used in patients who have had severe left ICA stenosis. The lethality rate in the early post procedural period among men and women was 1.2% and 1.8%, and in 2-year period was 18.7% and 28.6%, respectively. The lethality rate during 2-year period, which have been used for protective systems have been lower. The possibility to experience complications (stroke or TIA) increased 3 aortic arch type and the right common carotid artery stenosis, reduced protection systems using. Focal... [to full text] / Darbo tikslas – įvertinti miego arterijų angioplastikos ir stentavimo ankstyvuosius ir vėlyvuosius rezultatus bei poveikį darančius veiksnius. Metodai. Tyrimo metu vertintos VMAS procedūros atliktos 2006-2013 metais. Iš viso buvo atliktos 227 procedūros 211 pacientų; iš jų 156 (75,3 proc.) vyrams ir 55 (24,7 proc.) moterims. Rezultatai. Tyrimas atskleidė, kad esant 3 aortos lanko tipui VMAS procedūros trukmė buvo reikšmingai ilgesnė, o mikroembolai apsaugos sistemose buvo nustatyti dažniau. Mikroembolai apsaugos sistemose buvo nustatyti dažniau kai VMAS procedūra truko ilgiau. Apsaugos sistemos atliekant VMAS procedūrą buvo naudotos 70,9 proc. pacientų. Vyrams ir jaunesnio amžiaus pacientams VMAS procedūros metu apsauga buvo taikyta dažniau. Mikroembolai apsaugos sistemose buvo nustatyti 17,6 proc. pacientų ir dažniau buvo nustatyti naudojant FilterWire EZ ir Embo-shield-NAV apsaugos sistemas. Didesnė dešinės VMA stenozė buvo dažnesnė rūkantiems pacientams, o kairės VMA sirgusiems miokardo infarktu bei rūkantiems. Apsauga dažniau buvo taikyta pacientams kurie turėjo didelio laipsnio kairės VMA stenozę. Ankstyvuoju po procedūriniu periodu vyrų ir moterų mirštamumas atitinkamai buvo 1,2 proc. ir 1,8 proc., o 2 metų laikotarpyje buvo 18,7 proc. ir 28,6 proc. Pacientų mirštamumas 2 metų laikotarpyje, kuriems buvo naudotos apsaugos sistemos buvo mažesnis. Galimybę patirti komplikacijas (GSI ar PSIP) didino 3 aortos lanko tipas ir dešinės bendrosios miego arterijos stenozė, mažino... [toliau žr. visą tekstą]
3

Značaj karotidne endarterektomije kod asimptomatskih pacijenata sa nekompletnom kolateralizacijom unutar Vilisovog poligona / Significance of carotid endarterectomy in asymptomatic patients with incomplete collateralisation within circle of Willis

Manojlović Vladimir 30 October 2015 (has links)
<p>UVOD: Vilisov poligon predstavlja najznačajniju rezervu kolateralnog protoka između ekstrakranijalnih arterija koje vaskularizuju mozak i ima sposobnost razvoja kolateranih puteva kod ekstrakranijalne karotidne bolesti. Ova anatomska struktura podložna je varijacijama koje uključuju i prekid kontinuiteta i nekompletnost kolateralizacije. CILJEVI: Cilj je bio da se utvrdi da li nekompletnost Vilisovog poligona utiče na če&scaron;će pojavljivanje neurolo&scaron;ke simptomatologije i ishemijske moždane lezije kod pacijenata sa ekstrakranijalnom karotidnom bolesti. Takođe cilj je bio i da se utvrdi da li cerebrovaskularna reaktivnost kod pacijenata sa asimptomatskom ekstrakranijalnom karotidnom bolesti zavisi od kompletosti Vilisovog poligona i na koji način hirur&scaron;ki tretman utiče na parametre cerebrovaskularne rezerve kod pacijenata sa kompletnim i nekompletnim Vilisovim poligonom. METOD: U retrospektivnoj studiji analiziran je nalaz MRA kod 211 pacijenata sa ekstrakranijalnom karotidnom bolesti i 102 pacijenta iz kontrolne grupe. U prospektivnoj studiji je kod 98 pacijenata sa asimptomatskom karotidnom bolesti pored MRA nalaza određivana cerebrovaskularna reaktivnost putem određivanja &bdquo;breath hold index&ldquo;-a (BHI) pre i nakon operativnog tretmana. REZULTATI: Nekompletan Vilisov poligon nađen je kod 25% asimptomatskih, 47,5% simptomatskih pacijenata sa karotidnom bolesti i kod 59% kontrolne grupe pacijenata, pri čemu su se razlike pokazale kao statistički značajne. Kod asimptomatskih pacijenata sa nekompletnim Vilisovim poligonom BHI preoperativno iznostio je 0,62 a postoperativno 1,01 na strani lezije. U slučaju nekompletnog Vilisovog poligona preoperativna vrednost BHI iznostila je 0,88 a postoperativna 1,09 na strani lezije. Razlike su se pokazale kao statistički značajne između grupa i pre i posle operativnog tretmana. Porast je bio statistički značajno izraženiji u grupi asimptomatskih pacijenata sa nekompletnim Vilisovim poligonom. Nisu zabeležene major operativne komplikacije (perioeprativni moždani udar,smrtni ishod) a na pojavu hiperperfuzionog sindroma najvi&scaron;e su uticali kompletnost Vilisovog poligona, vrednost BHI i preoperativni tretman hipertenzije. ZAKLJUČCI: Nekompletan Vilisov poligon predstavlja faktor rizika za pojavu neurolo&scaron;ke simptomatologije ili ishemijske moždane lezije kod pacijenata sa ekstrakranijalnom karotidnom bolesti. Kod asimptomatskih pacijenata nekompletan Vilisov pologon utiče na smanjenu cerebrovaskularnu reaktivnost i veći rizik od moždanog udara. Parametri cerebrovaskularne reaktivnosti signifikantno se pobolj&scaron;avaju nakon operativnog tretmana.</p> / <p>INTRODUCTION: Circle of Willis is the most important reserve of collateral flow between the extracranial arteries that supply the brain and has the ability to develop collateral pathways in extracranial carotid disease. This anatomical structure is subject to variations which include a disruption in the continuity and incompleteness of collateralisation. OBJECTIVES: was to determine whether the incompleteness of the Circle of Willis is more often associated with neurological symptoms and ishemic cerebral lesions in patients with extracranial carotid artery disease. Also, the objective was to determine whether cerebrovascular reactivity in patients with asymptomatic extracranial carotid artery disease depends on the completeness Circle of Willis and how surgical treatment affects the parameters of cerebrovascular reserve in patients with complete and incomplete Circle of Willis. METHODS: This study analyzed the findings of MRA in 211 patients with extracranial carotid artery disease and 102 patients in the control group. In prospective study in 98 patients with asymptomatic carotid artery disease in addition to the MRA findings cerebrovascular reactivity was determined by determining the &quot;breath hold index&quot; -a (BHI) before and after surgical treatment. RESULTS: Incomplete Circle of Willis was found in 25% of asymptomatic, 47.5% of symptomatic patients with carotid artery disease, and 59% of the control group patients, where the difference proved to be statistically significant. In asymptomatic patients with incomplete Circle of Willis BHI values were 0.62 preoperatively and 1.01 postoperatively on the side of the lesion. In the case of incomplete Circle of Willis preoperative BHI values were 0.88 preopertively and 1.09 postoperatively in asymptomatic patients. The differences are shown to be statistically significant between the groups before and after surgical treatment. The increase was significantly more pronounced in the group of asymptomatic patients with incomplete Circle of Willis. There were not recorded major operative complications (perioeprativni stroke, mortality) and the occurrence hyperperfusion syndrome was most affected by completeness of the Circle of Willis, a value BHI and preoperative treatment of hypertension. CONCLUSIONS: Incomplete Circle of Willis is a risk factor for the occurrence of neurological symptoms or ischemic brain lesions in patients with extracranial carotid artery disease. In asymptomatic patients incomplete Circle of Willis affects the reduced cerebrovascular reactivity and a higher risk of stroke. The parameters of cerebrovascular reactivity significantly improved after surgical treatment.</p>
4

Procena cerebralne autoregulacije primenom apnea testa kod simptomatske karotidne stenoze pre i posle karotidne endarterektomije / Evaluation of cerebral autoregulation by application of apnea test in patients with symptomatic carotid stenosis before and after carotid endarterectomy

Lučić Prokin Aleksandra 06 November 2015 (has links)
<p>TCD apnea test kao neinvazivna i bezbedna neuroultrasonografska metoda pruža korisne informacije o vazomotornoj reaktivnosti (VMR) u procesu indirektnog sagledavanja funkcionisanja moždane autoregulacije. Vazomotorna reaktivnosti podrazumeva sposobnost dilatacije ili konstrikcije moždanih arteriola nastale kao odgovor na određeni vazoaktivni stimulus, najče&scaron;će ugljen dioksid. Cilj ove doktorske disertacije bio je ispitivanje i analiziranje promene karotidne hemodinamike kod bolesnika sa ishemijskim moždanim udarom (IMU) ili tranzitornim ishemijskim atakom (TIA) i simptomatskom karotidnom stenozom u preoperativnom i tromesečnom postoperativnom periodu, kao i procena revaskularizacionog efekta karotidne endarterektomije (KEA).U istraživanje je uključeno 60 hospitalizovanih bolesnika koji su doživeli prvi IMU i TIA u zoni vaskularizacije arterije cerebri anterior (ACA) i arterije cerebri medije (ACM), svi sa karotidnom stenozom, ACI &ge;70%. Bolesnici su bili hospitalizovani na Klinici za neurologiju, Kliničkog Centra Vojvodine, Klinici za kardiovaskularnu hirurgiju, Instituta za kardiovaskularne bolesti Vojvodine i Klinici za vaskularnu hirurgiju, u Novom Sadu. U odnosu na kliničke manifestacije bolesni i su podeljeni u tri grupe: bolesnici sa TIA i amaurosis fugax, sa parcijalnim infarktom u zoni ACA ili ACM i sa lakunarnim infarktom. Istraživanje je analiziralo uticaj promenljivih i nepromenljivih vaskularnih faktora rizika na pojavu IMU i TIA, ali i na VMR, procenjivanu kroz indeks zadržavanja daha (Breath Holding Index, BHI) ipsilateralno i kontralateralno u odnosu na karotidnu stenozu. Analizirana je povezanost stepena karotidne stenoze sa vrednostima BHI preoperativno, povezanost BHI sa težinom kliničke slike, uticaj kolateralnog krvotoka na VMR, distribucija BHI u pojedinim tipovima IMU i TIA kao i komparacija BHI u pre i u postoperativnom periodu od 30 i 90 dana. Na osnovu sprovedenog istraživanja, do&scaron;lo se do zaključaka da je redukovana VMR preoperativna karakteristika karotidne stenoze ipsilateralno kao i karakteristika različitih tipova IMU i TIA ipsilateralno; postoji negativna korela ija izmeĐu stepena karotidne stenoze i BHI vrednosti. Nije potvrđena hipoteza da veći roj razvijenih kolateralnih puteva uslovljava očuvanu VMR; utvrđena je pozitivna korelacija između BHI vrednosti u preoperativnom i postoperativnom periodu; redukovana VMR ima negativan uticaj na težinu kliničke slike. Prepoznavanje vrednosti TCD apnea testa, koji se može koristiti kao komplementarna metoda drugim vazoaktivnim testovima u praćenju karotidne hemodinamike, od posebne je važnosti neurologu i vaskularnom hirurgu. Time bi se doprinelo daljoj evaluaciji mehanizma nastanka IMU, planiranju terapijskog pristupa i determinisanju prognoze operisanih bolesnika. Činjenica da većina neurolo&scaron;kih odeljenja poseduje TCD aparat, apnea test postaje dostupan svakom neurologu u kliničkom radu, posebno u na&scaron;im uslovima, kada se do drugih drugih, skupljih metoda, te&scaron;ko stiže ili nam ostaju nedostižne.</p> / <p>TCD apnea test, as a noninvasive and safe neuroultrasonographic method, provides useful information about vasomotor reactivity (VMR) in the indirect evaluation of cerebral autoregulation. Vasomotor reactivity is the ability of cerebral arterioles to constrict or to dilate in response to a vasoactive stimulus, mainly carbon dioxide. The aim of this doctoral thesis was to investigate and analyze changes in carotid hemodynamics in patients with ischemic stroke (IS) or transient ischemic attack (TIA) and symptomatic carotid stenosis in the preoperative and three-month postoperative period as well as the assessment of revascularisation effect of carotid endarterectomy (CEA). The study included 60 hospitalized patients who experienced a first ischemic stroke or TIA in the vasularisation area of anterior cerebral artery (ACA) and middle cerebral artery (MCA), all with carotid stenosis &ge;70% ACI. Patients were hospitalized at the Clinic of Neurology, Clinical Center of Vojvodina, Department of Cardiovascular Surgery, Institute of Cardiovascular Diseases and the Department of Vascular Surgery in Novi Sad. Considering clinical manifestations of stroke, the patients were divided into three groups: patients with TIA and amaurosis fugax, with partial infarction in area ACA or ACM and with lacunar infarct. The study analyzed the impact of variabile and unvariable vascular risk factors on the incidence of ischemic stroke and TIA, but also on VMR, evaluated through Breath Holding Index (Breath Holding Index, BHI) on the ipsilateral and contralateral side from carotid stenosis. We analysed the correlation between the degree of carotid stenosis with preoperative values of BHI, BHI correlation to the severity of clinical findings, the impact of collateral circulation to the VMR, distribution of BHI in certain types of ischemic stroke and TIA as well as comparison of BHI in the pre and postoperative period of 30 and 90 days. On the basis of this research came the conclusion that reduced VMR is characteristic of ipsilateral carotid stenosis in preoperative period as well as number of developed collateral characteristics of different types of ipsilateral ischemic stroke and TIA; there is a negative correlation between the degree of carotid stenosis and BHI values. The hypothesis that the greater pathways causes preservation of VMR was not confirmed, while the positive correlation between BHI values in the preoperative and postoperative period was established. Reduced VMR has a negative impact on the degree of clinical picture severity. Recognizing the importance of TCD apnea test method, that can be used as a complementary method to other vasoactive tests in monitoring of carotid hemodynamics, is of special importance to the neurologists and vascular surgeons. This would contribute to the further evaluation of mechanism of ischemic stroke, planning of therapeutic approach and determining the prognosis of treated patients. The fact that most of neurological department has TCD device, apnea test becomes available to every neurologist in clinical work, specially in our conditions, when other methods remain unattainable.</p>
5

Rana karotidna endarterektomija nakon akutnog neurološkog deficita / Early carotid endarterectomy after acute neurological deficit

Koprivica Radenko 02 September 2016 (has links)
<p>Ciljevi: Cilj ove studije je da ispita bezbednost rane karotidne endarterektomije (CEA) u odnosu na odložene CEA nakon akutnog ishemijskog neurolo&scaron;kog deficita (TIA/CVI). Drugi cilj je da istražimo da li postoji razlika u brzini neurolo&scaron;kog oporavka između navedenih grupa. Metode: Ukupno 157 ispitanika u prospektivnoj studiji je praćeno 30 dana postoperativno. Grupa I ili rana CEA, je imala 50 ispitanika operisanih od 3. do 14. dana po TIA/CVI događaju. Grupa II ili odložena CEA, je imala 107 ispitanika operisanih od 15. do 180. dana nakon TIA/CVI. Praćen je proceduralni op&scaron;ti i specifični morbiditet i mortalitet u 30-dnevnom postoperativnom periodu. Rankin skor (mRS) smo koristili za procenu neurolo&scaron;kog invaliditeta. U odnosu na vrednost mRS skora smo formirali dve podgrupe mRS&lt;3 i mRS3. U statističkoj analizi koristili smo Pirsonov hi test, Studentov test, ANOVU analizu varijanse, Boniferonijev test i multiplu analizu varijanse za ponovljena merenja (GLM- general line model), kao i parametarsku i neparametarsku korelaciju i regresiju. Nivo značajnosti je bio 0,05. Rezultati: Prosečna starost ispitanika je bila 66,72 godine uz 66,2% osoba mu&scaron;kog pola. U grupi I je prosečno vreme do intervencije bilo 9,5 dana, a u grupi II 72,22 dana. Grupe su homogene u odnosu na faktore rizika i komorbiditet. Grupa I je imala 54% nestabilnih aterosklerotskih plakova u poređenju sa grupom II gde ih je bilo 31,8% (&chi;2 = 7.084; p &lt; 0.01). U grupi I TIA je imalo 50% ispitanika, a u grupi II CVI nalaza je bilo 68,2% (&chi;2 =4.825; p &lt;0.05). CVI do 1 cm veličine je statistički značajno vi&scaron;e zastupljen u grupi I , a CVI do 2 cm u grupi II (&chi;2 = 6.913; p &lt;0.05). Stopa CVI je u grupi I bila 2.0% a u grupi II je 2.8% (F = 0.083; p &gt; 0.05). Stopa postoperativnog infarkta miokarda (IM) je u grupi I je 2.0% a u grupi II je 1.9%. Stopa specifičnog hirur&scaron;kog morbiditeta je u grupi I 4.0% a u grupi II 3.7%. U grupi I ukupni morbiditet bio 6.0% a u grupi II 7.5%, razlika nije bila statistički značajna (F =0.921; p &gt; 0.05). Mortaliteta u obe grupe nije bilo. CVI/IM/smrt stopa je u grupi I bio 4.0% a u grupi II je bio 4.7% (F = 0.122; p &gt;0.05). Hiperlipidemija je signifikantan faktor rizika za CVI/IM/smrt (&chi;2 = 4.083; p &lt; 0.05). Pobolj&scaron;anje mRS je u grupi I imalo 52%, a u grupi II 31,8% pacijenata (&chi;2 = 5.903; p &lt;0.01). Relativni rizik je 2,4 odnosno toliko puta je veća &scaron;ansa da kod bolesnika dođe do promene mRS ako je bolesnik u grupi I. Pad mRS koji nastupa između trećeg i desetog dana nakon CEA je statistički visoko značajno izraženiji u grupi ranih CEA ( F 3,701 df 1 p=0,029). Kod bolesnika sa TIA u preko 60% slučajeva do&scaron;lo je do pada mRS, a kod onih koji su imali CVI u oko 25.5% (&chi;2 = 18.050; p &lt; 0.01). Kod Rankin skora podgrupe mRS&lt;3 i mRS3 je pad bio značajan i po vremenu (F 18,774; df 6; p=0,000) i po podgrupi ali je daleko brži pad zapažen u podgrupi mRS&lt;3(F 6,010; df 1; p=0,003). Zaključak: Rana CEA je jednako bezbedna kao i odložena CEA u pogledu incidence perioperativnog morbiditeta i mortaliteta. Ranom CEA se postiže znatno brži neurolo&scaron;ki oporavak pacijenata, naročito onih sa TIA i mRS&lt;3 skorom.</p> / <p>Objectives: The aim of this study was to investigate the safety of early carotid endarterectomy (CEA) in relation to the delayed CEA after acute ischemic neurological events (TIA / CVI). The second objective was to investigate whether there is a difference in speed of neurological recovery between these groups. Methods: A total of 157 patients in the prospective study followed 30 days postoperatively. Group I or early CEA, had 50 patients operated from 3 to 14 days after TIA / CVI event. Group II or delayed CEA, had 107 patients operated from 15 to 180 days after the TIA / CVI. Accompanied by the general and specific procedural morbidity and mortality in 30-day postoperative folow up. Rankin score (mRS) were used for evaluation of neurologic disability. In relation to the value of mRS score we formed two subgroups mRS &lt;3 i mRS3. In the statistical analysis we used the Pearson chi test, Student&#39;s test, ANOVA analysis of variance, Boniferony test and multiple analysis of variance for repeated measures (GLM- general line model), as well parametric and nonparametric correlation and regression. The significance level was 0.05. Results: The mean age was 66.72 years with 66.2% of males. In Group I is the average time to intervention was 9.5 days, and in group II 72.22 days. The groups were homogeneous in relation to risk factors and comorbidities. Group I had 54% of unstable atherosclerotic plaques compared with group II, where it was 31.8% (&chi;2 = 7.084; p &lt;0.01). In the group I TIA had 50% of respondents, while in group II CVI was 68.2% (&chi;2 = 4.825; p &lt;0.05). CVI to 1 cm in size were significantly more frequent in the group I, a CVI to 2 cm in group II (&chi;2 = 6.913; p &lt;0.05). CVI rate in the group I was 2.0%, and in group II was 2.8% (F = 0.083, p&gt; 0.05). Postoperative myocardial infarction (MI) in the group I is 2.0%, and in group II was 1.9%. Specific surgical morbidity rate in the group I and 4.0% in the group II 3.7%. In group I total morbidity was 6.0% in group II 7.5%, the difference was not statistically significant (F = 0.921; p&gt; 0.05). Mortality in both groups was not. CVI/IM/death rate in group I was 4.0% in group II was 4.7% (F = 0.122; p&gt; 0.05). Hyperlipidemia is a significant risk factor for CVI/IM/death (&chi;2 = 4.083; p&lt;0.05). Improving mRS in the group I had 52% and in group II 31.8% of patients (&chi;2 = 5.903; p &lt;0.01). The relative risk was 2.4 times as much and is more likely to occur in patients mRS changes if the patient in group I. Improving mRS that occurs between the third and tenth days after CEA was highly statistically significantly greater in the group of early CEA (F 3,701 df 1 p = 0.029). In patients with TIA in 60% of cases there was a decline mRS, and those had CVI in about 25.5% (&chi;2 = 18.050; p &lt;0.01). In Rankin score subgroups mRS &lt;3 i mRS 3 the decline was significant and time (F 18,774; df 6; p =0.000) and in the subgroup but it is far more rapid decline observed in the subgroup mRS &lt;3 (F 6.010; df 1; p = 0.003). Conclusions: Early CEA is as safe as the delayed CEA in respect incidence of perioperative morbidity and mortality. Early CEA is achieved significantly faster recovery of neurological patients, especially those with TIA and mRS &lt;3 compared with delayed CEA.</p>
6

Prediktori ishoda operativnog lečenja pacijenata sa koronarnom i karotidnom arteriosklerozom / Predictors of operative treatment outcome in group of patients with coronary and carotid atherosclerosis

Milosavljević Aleksandar 29 September 2016 (has links)
<p>Boljom prevencijom aterosklerotskih bolesti i uvođenjem invazivnih procedura endoluminalnim pristupom u lečenju koronarne bolesti i karotidne bolesti, hirur&scaron;ke procedure u poslednje dve decenije postaju sve kompleksnije i teže. Profil pacijenata podvrgnutih revaskularizaciji miokarda postaje sve rizičniji i procentualno se povećava broj polivaskularnih pacijenata za koje je neophodno uraditi dodatne procedure na karotidnim arterijama, bilo da su one urađene simultano, u dva ili tri akta. To su pacijenati koji imaju značajne aterosklerotske lezije na jednoj ili obe karotidne arterije zajedno sa značajnim suženjima koronarnih arterija. Algoritmi koji se nude u projektovanju operativne taktike ni danas nisu strogo definisani i vrlo često zavise od individualne procene i stava hirurga koji izvode ove procedure. Ishod operativnog lečenja ovih pacijenata često zavisi od hirur&scaron;ke taktike i ustanove u kojoj se oni operativno leče. Prediktori ishoda operativnog lečenja bi mogli biti važan faktor u selekcioniranju pacijenata u preporuci taktike operativnog lečenja. U tezi su analizirani klinički aspekti preoperativno i postoperativno, postoperativni mortalitet - 30 dana posle operacije i jednu godinu posle operacije. Analiziran je uticaj faktora: starost, pol, neurolo&scaron;ka disfunkcija, infarkt miokarda do 90 dana pre operacije, nestabilna angina, diabetes mellitus, bilateralna stenoza karotidnih arterija kod 94 pacijenta koji su operisani u Klinici za kardiohirurgiju Instituta za kardiovaskularne bolesti Vojvodine u Sremskoj Kamenici u periodu 2007-2012g. Kod svih je, preoperativno, nađeno da imaju značajne promene na koronarnim i karotidnim arterijama. Pacijenti su podeljeni u dve grupe po tipu izvr&scaron;ene operacije. Prvu grupu su sačinjavali pacijenti koji su operisani u odvojenim operacijama karotidnih arterija i revakularizacije miokarda, a drugi su operisani simultano operacijom karotidnih arterija i revaskularizacijom miokarda. U metodologiji su kori&scaron;ćene metode retrospektivnog i prospektivnog istraživanja. Kori&scaron;ćena je elektronska baza podataka Instituta za kardiovaskularne bolesti Vojvodine, vođen je intervju sa pacijentima. Kori&scaron;ćeni su i pregledi doppler sonografije karotidnih arterija koji su rađeni u drugim ustanovama. Mortalitet-30 dana i jednu godinu posle operacije je bio prihvatljivo nizak, pacijenti su pobolj&scaron;ani u posmatranim parametrima. Neurolo&scaron;ki morbiditet na 30 dana i jednu godinu posle je bio prihvatljivo nizak. Prediktori mortaliteta su bili pu&scaron;enje 30 dana i godinu dana posle operacije u obe grupe. Prediktor morbiditeta 30 dana i jednu godinu nakon operacije bila je hiperlipoproteinemija. Ženski pol je bio nezavisni prediktor mortaliteta u grupi pacijenata operisanih u vi&scaron;e aktova. Pacijenti operisini simultano su bili teži po simptomima ( NYHAklasi) i u većem riziku (EU2 score), ali nisu imali statistički značajno veću smrtnost u odnosu na grupu operisanu u vi&scaron;e aktova.</p> / <p>Surgical procedures have become more complex and difficult in the past two decades due to the better prevention of atherosclerotic diseases and the introduction of invasive procedures with endoluminal approach to treating coronary and carotid artery diseases. The profile of patients undergoing myocardial revascularization is becoming riskier. There is also increase in the percentage of patients with polyvascular disease who need additional procedures on the carotid arteries, whether they are done simultaneously or in two or three acts. These are the patients who have significant atherosclerotic lesions in one or both of the carotid arteries along with the significant narrowing of the coronary arteries. Algorithms that are offered to plan operative tactics are still not strictly defined and often depend on the individual assessment of surgeons and the attitude of certain institutions that perform the procedure. The outcome of surgical treatment of these patients often depends on surgical tactics and the institution in which they are treated. Predictors of surgical treatment outcome could be an important factor for the selection of patients and the recommendation of operative treatment tactics. The thesis analyzed pre- and postoperative clinical aspect as well as 30-day and one-year postoperative mortality. The influence of the following factors was analyzed: age, sex, neurologic dysfunction, myocardial infarction occurring 90 days after surgery, unstable angina, diabetes mellitus, and bilateral carotid artery stenosis in 94 patients that underwent cardiac surgery at the Clinic of Cardiovascular Surgery of the Institute of Cardiovascular Diseases of Vojvodina in Sremska Kamenica in the period from 2007 to 2012. All patients had significant changes on the coronary and carotid arteries. The patients were divided into two groups according to the type of surgery. The first group consisted of the patients who underwent carotid artery surgery and myocardial revascularization separately. The second group of patients underwent carotid artery surgery and myocardial revascularization at the same time. Methods of retrospective and prospective research were used in the methodology. Electronic data base of the Institute of Cardiovascular Diseases of Vojvodina was also used and the patients were interviewed. Doppler of carotid arteries performed both in our institution and in other institutions was used. Mortality, 30-day and one-year post surgery, was acceptably low. The patients were improved in the observed parameters. Neurologic morbidity 30 days and one year after surgery was acceptably low. Smoking 30 days and one year after surgery was predictor of mortality in both groups. Hyperlipoproteinemia 30 days and one year after surgery was predictor of morbidity. Female sex was independent predictor of mortality for the first group of patients. The second group of patients were more complex according to the symptoms (NYHA class) and with greater risk (EU2 score), but their mortality rate was not statistically significant in relation to the first group of patients.</p>

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