scholarly journals Introduction of a Simple and Minimally Invasive Approach for Access to Epidural Space in Cat

2021 ◽  
Vol 8 (3) ◽  
pp. 118-123
Author(s):  
Asma Asadian ◽  
Mirsepehr Pedram ◽  
Mohamad Mehdi Dehghan ◽  
Javad Sadeghinejad ◽  
Majid Masoudifard ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Epidural Space ◽  
Spinal Cord Injuries ◽  
Lumbosacral Junction ◽  
Minimally Invasive Approach ◽  
Invasive Approach ◽  
Percutaneous Approach ◽  
Intensity Index ◽  
Magnetic Resonance Imaging Mri ◽  
Artifact Formation

Background: Although various studied have been done to improve therapeutic strategies in resolving spinal cord injuries, robust clinical treatment is not yet available. Developing a standard animal model is essential to achieve effective treatment for such injuries. The present study was performed to introduce a simple, applicable, and minimally invasive approach for access to epidural space in cats. Methods: We used a percutaneous approach from the lumbosacral junction for stainless steel cannula insertion to the epidural space without fluoroscopy. CT scan, conventional magnetic resonance imaging (MRI), tractography, and behavioral evaluation were used to assess the correct position of the cannula and the neurological condition of the animal. Results: MRI results showed no significant change in signal intensity index of neural structures under lumbosacral junction. These observations are further supported by tractography, and also behavioral examination during the study. Conclusion: We found that the percutaneous approach from the lumbosacral junction is a simple and applicable approach that has no side effects and artifact formation in MRI evaluation.

Minimally Invasive Approach for Dorsal Arachnoid Web: 2-Dimensional Operative Video

2021 ◽  
Author(s):  
Corentin Dauleac ◽  
Henri-Arthur Leroy ◽  
Richard Assaker
Keyword(s):  
Spinal Cord ◽  
Minimally Invasive ◽  
Skin Incision ◽  
Minimally Invasive Approach ◽  
Tubular Retractor ◽  
Invasive Approach ◽  
Spinal Cord Herniation ◽  
Muscle Sparing ◽  
Magnetic Resonance Imaging Mri ◽  
Spinal Cord Decompression

Abstract A 67-yr-old patient presented with severe paraparesis and lower limb spasticity. The spinal cord magnetic resonance imaging (MRI) revealed the “scalpel sign” 1,2 at the T7 level, suggesting a diagnosis of a dorsal arachnoid web. This video demonstrates a microsurgical technique for the excision of a dorsal arachnoid web with a minimally invasive approach. A paramedian skin incision, understanding the muscular aponeurosis, was performed from T7 to T8. Then, we inserted the tubular dilators until the lamina, to perform a muscle-sparing approach. An expandable tubular retractor of adequate length was passed over the widest dilator and docked into place along the subperiosteal plane. The T7 lamina was drilled, and the resection of the superior and inferior adjacent spine levels was completed with a rongeur. Additional contralateral bone resection was performed after tubular retractor tilt to the midline.3 After dura mater opening, it was carefully suspended and the dorsal arachnoid leaflet was cut to drain the dorsolateral and lateral spinal cisterns.4 The dorsal arachnoid web was, first, disconnected from its lateral anchorages. It was then gently removed with microsurgical forceps, to help its microdissection from the spinal cord surface. At this step, peculiar attention was paid to limit the traction or displacements of the spinal cord and surrounding vessels. Once the dorsal arachnoid web was removed, the quality of the spinal cord decompression was confirmed by its re-expansion. In conclusion, the minimally invasive approach is a safe and appropriate technique for dorsal arachnoid web excision.2,5,6-7  The patient gave her informed and signed consent for the writing and publication of this article.  Image at 1:00 reused with permission from Castelnovo G et al, Spontaneous transdural spinal cord herniation, Neurology, 2014;82(14):1290.

scholarly journals Minimally invasive approach to the lumbosacral junction with a single position, 360° fusion

2019 ◽  
Vol 5 (S1) ◽  
pp. S68-S73
Author(s):  
Griffin R. Baum ◽  
James D. Lin ◽  
Simon Morr ◽  
Joseph A. Osorio ◽  
Eric Leung ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Lumbosacral Junction ◽  
Minimally Invasive Approach ◽  
Invasive Approach

scholarly journals Combined Pre- and Postnatal Minimally Invasive Approach to Complicated Pulmonary Sequestrations

2020 ◽  
Vol 08 (01) ◽  
pp. e62-e67
Author(s):  
Martina Ichino ◽  
Francesco Macchini ◽  
Anna Morandi ◽  
Nicola Persico ◽  
Isabella Fabietti ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Pulmonary Sequestration ◽  
Laser Coagulation ◽  
Minimally Invasive Approach ◽  
Thoracoscopic Resection ◽  
Complete Excision ◽  
Invasive Approach ◽  
Systemic Artery ◽  
Anomalous Artery ◽  
Magnetic Resonance Imaging Mri

AbstractPulmonary sequestration (PS) is mostly asymptomatic but there is a proportion of fetuses that develop hydrops, leading to fetal or neonatal death. Fetal treatments are available, but postnatal management of the residual lesions is not uniformly defined. We present two cases of combined pre- and postnatal minimally invasive approach to complicated extra-lobar PS.Patient 1 presented with complicated PS at 31 weeks of gestation. Ultrasound-guided laser coagulation of the anomalous artery was successful. The patient was born asymptomatic at 38 weeks. Neonatal magnetic resonance imaging (MRI) showed a residual mass, confirmed by computed tomography (CT) at 6 months. No systemic artery was described, but perfusion was present. We decided for thoracoscopic resection. A residual artery was identified and sealed. Patient 2 presented with complicated PS at 25 weeks of gestation, underwent laser coagulation of the anomalous artery and was born asymptomatic at 38 weeks. Neonatal MRI showed persistence of the lesion, confirmed by CT scan at 4 months. We proceeded with thoracoscopic resection. A residual vessel was ligated. The patients 1 and 2 are now 24 and 21 months old, respectively, and healthy.Prenatal treatment of complicated PS is a life-saving procedure.Postnatal thoracoscopic resection of the residual lesion is feasible and safe; we believe it is the best course of treatment to grant the complete excision of the malformation.

Minimally Invasive Approach for Wilms Tumor Treatment in a Small Child - A Case Report

Urology ◽  
2020 ◽  
Author(s):  
Alexandre Azevedo Ziomkowski ◽  
João Rafael Silva Simões Estrela ◽  
Nilo Jorge Carvalho Leão Barretto ◽  
Nilo César Leão Barretto
Keyword(s):  
Case Report ◽  
Minimally Invasive ◽  
Wilms Tumor ◽  
Small Child ◽  
Tumor Treatment ◽  
Minimally Invasive Approach ◽  
Invasive Approach

A Minimally Invasive Approach for Treatment of Cholesterol Granuloma of the Petrous Apex

2019 ◽  
Author(s):  
Brandon Lucke-Wold ◽  
Maya Fleseriu ◽  
Haley Calcagno ◽  
Timothy Smith ◽  
Joshua Levy ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Petrous Apex ◽  
Cholesterol Granuloma ◽  
Minimally Invasive Approach ◽  
Invasive Approach

Surgical Technique: Papillary Muscle Sling for Functional Mitral Regurgitation during Minimally Invasive Valve Surgery

2013 ◽  
Vol 16 (5) ◽  
pp. E295-E297 ◽  
Author(s):  
Joseph Lamelas ◽  
Christos Mihos ◽  
Orlando Santana
Keyword(s):  
Mitral Regurgitation ◽  
Minimally Invasive ◽  
Median Sternotomy ◽  
Rational Approach ◽  
Functional Mitral Regurgitation ◽  
Minimally Invasive Approach ◽  
Invasive Approach ◽  
Mitral Annuloplasty ◽  
Technical Details ◽  
Mitral Apparatus

In patients with functional mitral regurgitation, the placement of a sling encircling both papillary muscles in conjunction with mitral annuloplasty appears to be a rational approach for surgical correction, because it addresses both the mitral valve and the deformities of the subvalvular mitral apparatus. Reports in the literature that describe the utilization of this technique are few, and mainly involve a median sternotomy approach. The purpose of this communication is to describe the technical details of performing this procedure via a minimally invasive approach.

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