Mexanik trombektomiya o'tkir ishemik insultni davolash uchun samarali usul bo'lib, to'g'ridan-to'g'ri aspiratsiya, Stent olish yoki ikkalasining kombinatsiyasini o'z ichiga oladi. To'g'ridan-to'g'ri aspiratsiya tiqilib qolgan tomirning diametriga qarab turli o'lchamdagi turli kateterlar yordamida amalga oshirilishi mumkin.
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}} MCAda 0,040 dyuym va ICAda 0,064 dyuym. Kateter o'lchami va rekanalizatsiya muvaffaqiyati darajasi o'rtasidagi bog'liqlik kattaroq diametrli kateterning aspiratsiya kateteri trombni ushlaganida ko'proq so'rish kuchiga ega bo'lishi va shu bilan trombning aspiratsiya qilinmasligi va qochishi ehtimolini kamaytirishi mumkin.
Bemorning qon tomirlari va kateterlarining diametrlari unchalik farq qilmagani uchun amalda bunga erishish qiyin bo'lishi mumkin va har xil o'lchamdagi aspiratsion kateterlar talab qilinadi. Quyida olimlar tomonidan berilgan turli xil variantlar mavjud. Distal aspiratsiya kateterining optimal diametri ichki diametri {0}}.7–0.8 va tashqi diametri 0.8–1.0 nisbati boʻyicha hisoblanadi. , va ko'rsatilgan natijalar turli qon tomirlari diametrlari uchun.
Xulosa qilib aytganda, aspiratsiya kateterining ichki diametrining angiografiya bilan o'lchangan arterial diametriga nisbati 0.7-0.8 oralig'ida to'liq rekanalizatsiya bilan eng ko'p bog'liqdir. Jarroh rekanalizatsiya muvaffaqiyatini oshirish uchun rahbarlik ostida mosroq aspiratsiya kateterini tanlashi mumkin.