Richard Choi, DO, FNCS
Richard Choi, DO, FNCS

@rkchoi

23 Tweets Mar 17, 2023
1/ Another challenging case-based discussion. Help me manage this patient #medtwitter #neurotwitter #stroke. A #tweetorial ๐Ÿงต. ๐Ÿ™ to the great @sudhakar_satti for reviewing this case with me and sending me insights and pictures! Amazing team-work @NeuroChristiana @christianacare
2/ Elderly person with #HTN #HLD ๐Ÿšฌ who wakes up with R-sided weakness, mild aphasia, NIHSS 8 at outside ๐Ÿฅ. ๐Ÿšซ lytics as wake-up, but CT with #denseMCA and CTA with a left M1 non occlusive thrombus. Transferred for #thrombectomy evaluation. Imaging as follows:
3/ On arrival, NIHSS now 3 for R drift, ๐Ÿ˜•, no aphasia. #CTP as below. CT still with #ASPECTS 9:
4/ How do you manage the patient?
5/ Because the lesion is calcified and suspected to represent ruptured plaque, they are loaded with ASA/Plavix and admitted for close monitoring. MRI shows small infarct:
6/ โš โš โš  The patient now develops worsening right sided weakness, aphasia, dysarthria, NIHSS = 8. #strokealert โณ=๐Ÿง  reactivated, but upon evaluation, NIHSS returns to 3. How would you manage now?
7/ Patient is transferred to the #NeuroCriticalCare unit for close monitoring, layed flat, started on fluids. CT head with ๐Ÿšซ new infarct, unchanged calcification distal left M1 and Sx improve. We keep DAPT + HOB flat and IVF
8/ Next evening, patient does the same thing, NIHSS=8, word-๐Ÿฅ—, worsening right hemiparesis. #Strokealert again and CT with new stroke noted. BP at this time 110s:
9/ CTA/P completed as well. LM1 thrombus now appears <occlusive (note that calcification makes vessel appear >open than it actually is), CTP without clear penumbra, but TMax high in posterior MCA division.
10/ What do you do now??
11/ Because we felt this was ruptured plaque, managed with IVF and HOB flat w/ plan to start pressors, but BP โฌ† and symptoms resolved. #PRU was therapeutic too. โš  Next evening (at sameโŒš), patient does the same thing again! SBP 140s this time. What do you think is going on?
12/ Patient now on continuous #EEG, event captured and without evidence of seizures on EEG. How do you manage the patient?
13/ By now we are considering stent placement, but #WEAVE data suggests waiting 7 days is best to โฌ‡ periprocedural complications: ahajournals.org
14/ The patient undergoes MRI which does not demonstrate any evidence of new stroke (compared to last CT) despite multiple recurrent events and is consistent with prior CT:
15/ The patient is kept in the ICU and ultimately undergoes #angiogram. Notice the area of perfusional deficit along the posterior MCA division:
16/ With some mild suction, @sudhakar_satti is able to suction a rubbery clot and the MCA looks much better post-procedure ๐Ÿ˜Ž
17/ The patient ๐Ÿšซ symptomatic recurrence since then! We suspect that the patient was intermittently occluding her anterior division with a fixed posterior division stenosis, and that is what was causing her symptoms: a ball-valve type phenomenon!
18/ What is the etiology of this lesion?
19/ Final path: Fibrin thrombus with prominent calcification. Therefore, most likely cardioembolic as her ICA was <50% stenosed.
20/ Take ๐Ÿก points:
๐Ÿ‘‰ Recurrent events with no EEG correlate and with prolonged TMax make us think it was perfusional
๐Ÿ‘‰ Stent placement in acute setting associated with hemorrhagic conversion โ€“ delay x 1-2 weeks is prudent
21/ ๐Ÿ‘‰ No matter how long you practice, patients will always surprise you!
๐Ÿ‘‰ It takes a village to care for our patients!

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