Dr. Leonardo Rangel Castilla

Dr. Leonardo Rangel Castilla Neurocirujano con subespecialidades en el área cerebrovascular, endovascular, tumores, y columna. C

BRAIN 🧠 ANEURYSM 🎈 TETRA COILSIMPLE AND EFFICIENT 65 year old lady with multiple aneurysms. This is true posterior commu...
24/09/2025

BRAIN 🧠 ANEURYSM 🎈

TETRA COIL

SIMPLE AND EFFICIENT

65 year old lady with multiple aneurysms. This is true posterior communicating fetal artery aneurysm. Adjacent there is another sub-millimeter one. A simple TETRA coil was enough to treat this aneurysm. 45 min procedure, Semi-ambulatory.

1. 3D view of the posterior communicating artery aneurysm
2. Observe the unusual tiny aneurysm next to the larger one
3. Initial aneurysm, microcatheterization
4. Coiling TETRA Coil
5. Coiling TETRA Coil
6. Coiling TETRA Coil
7. Final result

# coil

Muchas gracias a  por este reconocimiento que nos entregaron durante nuestro podcast. Un gusto poder ser parte de este g...
18/09/2025

Muchas gracias a por este reconocimiento que nos entregaron durante nuestro podcast. Un gusto poder ser parte de este grupo tan importante y prestigioso de grandes líderes de la medicina en América.

La Independencia vive, cuando elegimos creer en un México mejor. 🇲🇽
16/09/2025

La Independencia vive, cuando elegimos creer en un México mejor. 🇲🇽

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13/09/2025

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ANTERIOR COMMUNICATING ARTERY ANEURYSM 1 hr surgery through a 2mm WRIST puncture Outpatient procedure (less than 24 hrs ...
10/09/2025

ANTERIOR COMMUNICATING ARTERY ANEURYSM

1 hr surgery through a 2mm WRIST puncture

Outpatient procedure (less than 24 hrs within the hospital).

65 yo female with history of headaches was found to have a wide neck 4mm aneurysm during work-up. We decided to treat this aneurysm with a intrasaccular flow disruptur (WEB).

1. 3D video showing the anterior communicating artery aneurysm
2. Measuring
3. Device (WEB)
4. Device
5. Device
6. Device before detachment
7. Flow stasis within aneurysm (aneurysms thrombosis)

Ambulatory endovascular surgery - Taking cerebrovascular and endovascular to the next level.

A MULTICENTER PILOT STUDY IN THE CLINICAL UTILITY OF COMPUTATIONAL MODELING FOR FLOW DIVERTER TREATMENT PLANNING Selecti...
27/08/2025

A MULTICENTER PILOT STUDY IN THE CLINICAL UTILITY OF COMPUTATIONAL MODELING FOR FLOW DIVERTER TREATMENT PLANNING

Selection of correct flow-Diverter size is critical for cerebral aneurysm treatment success, but it remains challenged due to the interplay of device size, anatomy, and employment. We conducted a study with experienceneurosurgeon, using competition and modeling to prospectively plan interventions. In each case, physicians simulated multiple flow diverter sizes that were under consideration based on pre-procedural Imogen.
We found computational modeling to be an impactful and useful tool for flow-diverter treatment planning. Validation results show good equipment between stimulated and clinical diameters and lengths.

Access to paper:

https://pubmed.ncbi.nlm.nih.gov/31558504/

ANTERIOR CEREBRAL ARTERY ANEURYSM 1 hr surgery, all surgery through a 2mm WRIST puncture Outpatient procedure (less than...
27/08/2025

ANTERIOR CEREBRAL ARTERY ANEURYSM

1 hr surgery, all surgery through a 2mm WRIST puncture
Outpatient procedure (less than 24 hrs within the hospital).

35 yo female with history of severe systemic hypertension secondary to aortic coarctation. She was found to have multiple aneurysms. A basilar tip aneurysm was treated few weeks ago. Now, a 5 x 4 mm aneurysm arriving from the right anterior cerebral artery is treated endovascularly with stent flow diversion.

1. 3D video showing large posterior communicating artery aneurysm
2. Measuring parent vessel
3. Stent flow diverter (Surpass Evolve)
4. Stent Deploymet
5. Stent Deployment
6. Flow stasis within aneurysm lateral view
7. Flow analysis - notice early flow changes immediately after stent deployment

LARGE POSTERIOR COMMUNICATING ARTERY ANEURYSM 1 hr surgery, all surgery through a 2mm groin puncture Outpatient procedur...
24/08/2025

LARGE POSTERIOR COMMUNICATING ARTERY ANEURYSM

1 hr surgery, all surgery through a 2mm groin puncture
Outpatient procedure (less than 24 hrs within the hospital).

60 yo female with strong history of familial ruptured cerebral aneurysms. She was found to have multiple aneurysms. We decided to trade the largest first. The aneurysm was treated endovascularly with stent flow diversion.

1. 3D video showing large posterior communicating artery aneurysm
2. 3D image
3. Angiography lateral view
4. Microcatheter and microwire up
5. Stent flow diverter (Surpass Evolve)
6. Deployment stent
7. Deployment stent
8. Flow stasis within aneurysm AP view
9. Flow stasis within aneurysm lateral view



www.drleonardorangel.com

🌐 San Luis Potosí, México
📧 lrcastilla@hotmail.com
☎️ Office 4444 23 31 01

20/08/2025
See you all in LA, October 11-15, CNS and The Americas Symposium
13/08/2025

See you all in LA, October 11-15, CNS and The Americas Symposium

CAVERNOUS MALFORMATION OR CAVERNOMAGIANT INTRAVENTRICULAR CAVERNOMA Cerebral cavernous malformations (CCMs) are groups o...
13/08/2025

CAVERNOUS MALFORMATION OR CAVERNOMA

GIANT INTRAVENTRICULAR CAVERNOMA

Cerebral cavernous malformations (CCMs) are groups of tightly packed, irregular small blood vessels with thin walls. They may be present in the brain or spinal cord. The vessels contain slow-moving blood that’s usually clotted. CCMs look like small mulberries. In some people, CCMs can cause blood to leak in the brain or spinal cord. CCM occurs as a single cavernous malformation and there isn’t a family history. But about 20% of CCMs affect people of the same family. These are known as familial CCMs. Familial CCMs are related to a gene change passed down through families. The most serious complications of cerebral cavernous malformations (CCMs) stem from repeated bleeding, known as hemorrhages. CCMs that bleed over and over again may cause a hemorrhagic stroke and lead to damage in the nervous system.
This patient had an unusual very large intraventricular CCM with multiple bleeding and hydrocephalus. We performed a contralateral, interhemispheric, transcallosal approach and en-bloc resection of the CCM.

1. Interhemispheric approach to the ventricle
2. After callosotomy the CCM is exposed
3. En-bloc CCM resection
4. Patient positioning
5. Patient positioning
6. Pre MRI showing GIANT CCM
7. Pre MRI showing GIANT CCM
8. Pre MRI showing GIANT CCM
9. Post MRI showing gross total resection
10. Post MRI showing gross total resection
11. Post MRI showing gross total resection

Patient recovered remarkable well and went home 3 days after surgery

THALAMIC ARTERIOVENOUS MALFORMATIONSAn arteriovenous malformation (AVM), is a tangle of blood vessels that creates irreg...
09/08/2025

THALAMIC
ARTERIOVENOUS MALFORMATIONS

An arteriovenous malformation (AVM), is a tangle of blood vessels that creates irregular connections between arteries and veins; they do not form properly, they can weaken and burst leading to a hemorrhagic stroke and brain damage. AVM in the thalamus and brainstem are the most complex to treat because the Nature of their deep and eloquent location.

Embolization alone, either transarterial or transvenous has shown promising results.

This young male patient has a Thalamic small AVM that ruptured causing intraventricular hemorrhage and hydrocephalus requiring VP shunt. After recovering we now proceed with Embolization with the intent to cure “EMBO FOR CURE”

1. 3D reconstruction of the Thalamic malformation
2. AP angiography showing the small but deep AVM fed by medial branch of PCA with deep draining veins
3. Lateral angiography showing same features.
4. Embolization
5. AP angiography showing complete AVM obliteration
6. Lateral angiography showing complete AVM obliteration

Dirección

Hospital Lomas De San Luis, Avenida Palmira 600 Consultorio 108
San Luis Potosí
78250

Notificaciones

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