Trombektomi mekanik se yon metòd efikas pou tretman konjesyon serebral ischemik egi, ki gen ladan aspirasyon dirèk, Rekiperasyon Stent, oswa yon konbinezon de tou de. Aspirasyon dirèk ka fèt lè l sèvi avèk yon varyete katetè ki gen diferan gwosè depann sou dyamèt veso ki fèmen.
Some scholars have divided the angiographic results into three types: "complete recanalization", "partial recanalization" (in the case of thrombus migration downstream of the branch or distal thrombus in the area supplied by the recanalized arterial segment) and "no recanalization". At the same time, the arterial diameter was measured independently before surgery, and the inner diameter of the distal end of the aspiration catheter (DAC) was collected. The inner diameter of the catheter was divided by the arterial diameter (AD) . Through testing and research, it was found that the ratio of the inner diameter of the catheter to the inner diameter of the artery was significantly different between the three recanalization categories, among which the "complete recanalization group" had the highest ratio and the "no recanalization" group had the lowest ratio. Therefore, it was confirmed that the larger diameter of the aspiration catheter relative to the arterial diameter was associated with an increase in the success of recanalization. At the same time, it was reported that larger aspiration catheters had better recanalization effects than smaller catheters, especially catheters with a diameter of >{{0}}.040 pous nan MCA a ak 0.064 pous nan ICA. Relasyon ki genyen ant gwosè katetè ak to siksè rekanalizasyon ka se paske katetè ki pi gwo dyamèt la gen yon pi gwo fòs pou aspirasyon lè katetè aspirasyon an pran tronb la, kidonk diminye posiblite pou tronb la pa aspire ak chape.
Depi dyamèt veso sangen pasyan an ak katetè yo pa trè diferan, sa ka difisil pou reyalize nan pratik, epi yo mande divès gwosè katetè aspirasyon. Sa ki anba la yo se opsyon diferan yo bay entelektyèl yo. Dyamèt optimal katetè aspirasyon distal la kalkile dapre rapò dyamèt enteryè {{0}}.7–0.8 ak dyamèt ekstèn 0.8–1.0. , ak rezilta yo montre yo se pou diferan dyamèt veso sangen.
An rezime, rapò dyamèt enteryè katetè aspirasyon an ak dyamèt atè yo mezire pa anjyografi nan seri 0.7-0.8 ki pi kore ak rekanalizasyon konplè. Chirijyen an ka chwazi yon katetè aspirasyon ki pi apwopriye anba gidans pou amelyore to siksè rekanalizasyon an.