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REVIEW
Marisa Kometas, Gregory M Christman, Joseph Kramer, Alice Rhoton-Vlasak
After cancer treatment, female survivors often develop ovarian insufficiency or failure. Oocyte and embryo freezing are well-established fertility preservation options, but cannot be applied in pre-pubescent girls, in women with hormone-sensitive malignancies, or when gonadotoxic treatment cannot be delayed. Although ovarian tissue cryopreservation (OTC) has been used to restore fertility and endocrine function, the relative efficacy of its two major protocols, slow freezing and vitrification, remains controversial...
December 2021: Reproductive Sciences
#22
JOURNAL ARTICLE
Devi P Patra, Evelyn L Turcotte, Bernard R Bendok
The optic canal (OC) is a bony channel that transmits the optic nerve (ON) and ophthalmic artery (OphA) as they course through the lesser wing of the sphenoid bone to the orbital apex. The OC is involved in a variety of intracranial and extracranial pathologies,1 and opening of the canal may be necessary in order to achieve adequate exposure, better disease control, and vision preservation.2 Depending on the location of the pathology and its relationship with the optic nerve, the OC may be decompressed through an open transcranial approach or an endoscopic endonasal approach...
August 16, 2021: Operative Neurosurgery (Hagerstown, Md.)
#23
JOURNAL ARTICLE
Vincent Nguyen, William Mangham, Jaafar Basma, Nickalus Khan, Jeffrey Sorenson, L Madison Michael
Objectives This study describes a far lateral approach for the resection of a recurrent fibromyxoid sarcoma involving the ventrolateral brainstem, with emphasis on the microsurgical anatomy and technique. Design A far lateral craniotomy is performed in the lateral decubitus position and the transverse and sigmoid sinuses exposed. After opening the dura, sutures are placed to allow gentle mobilization of the sinuses. The recurrent tumor is immediately visible. The involved dura is resected and aggressive internal debulking is performed...
February 2021: Journal of Neurological Surgery. Part B, Skull Base
#24
JOURNAL ARTICLE
Lattimore Madison Michael, Vincent Nguyen, Jaafar Basma, William Mangham, Nickalus Khan, Jeffrey Sorenson
Objectives This study was aimed to describe a far lateral approach for microsurgical resection of a transverse ligament cyst, with emphasis on the microsurgical anatomy and technique. Design A far lateral craniotomy is performed in the lateral decubitus position. After opening the dura laterally, dural sutures are placed for retraction. A stitch placed through the dentate ligament is advantageous to rotate the spinal cord to allow access to the ventral cyst. The cyst is marsupirlized and mass effect on the spinal cord is relieved...
February 2021: Journal of Neurological Surgery. Part B, Skull Base
#25
REVIEW
Olivia Moumne, Mary E Hampe, Diana Montoya-Williams, Tiffany L Carson, Josef Neu, Magda Francois, Alice Rhoton-Vlasak, Dominick J Lemas
The vaginal microbiome undergoes dramatic shifts before and throughout pregnancy. Although the genetic and environmental factors that regulate the vaginal microbiome have yet to be fully elucidated, high-throughput sequencing has provided an unprecedented opportunity to interrogate the vaginal microbiome as a potential source of next-generation therapeutics. Accumulating data demonstrates that vaginal health during pregnancy includes commensal bacteria such as Lactobacillus that serve to reduce pH and prevent pathogenic invasion...
May 26, 2021: Journal of Perinatal Medicine
#26
REVIEW
Ulrick Sidney Kanmounye, Faith C Robertson, Lorraine Arabang Sebopelo, Wah Praise Senyuy, Dawin Sichimba, Chiuyu Keke, Genevieve Endalle, Christopher S Graffeo
BACKGROUND: WORLD NEUROSURGERY (WN) is among the most influential peer-reviewed neurosurgery journals and has had an explicitly global focus historically. The goal of the current study was to perform quantitative bibliographic and social network analyses to identify key contributors and trends influencing article citation patterns. METHODS: WN articles were searched using Web of Science and the sampling frame January 1, 1990, to June 18, 2020. Articles were sorted in decreasing order of total citations; the 200 most cited articles were included...
May 2021: World Neurosurgery
#27
JOURNAL ARTICLE
Samer S Hoz, Awfa A Aktham, Zahraa F Al-Sharshahi, Ignatius N Esene, Dominic Mahoney, Bipin Chaurasia, Sameh E Radwan, Ali A Dolachee, Mohammed M Abdulazeez, Abdullah H Al Ramadan, Luis Rafael Moscote-Salazar, Hatem Sadik
Background: Neuroanatomy is the core basis for neurosurgical excellence. The quantity of accessible neuroanatomy resources has witnessed exponential growth in recent years. Accumulating a list of popular sources and getting them ranked by neurosurgeons was the motivation behind this investigation. Methods: A list of neuroanatomy resources was compiled using Google search wherein multiple sets of variable combinations of keywords were used. A three-section, eleven-item questionnaire was designed by two neurosurgeons and revised by a third independent reviewer...
2021: Surgical Neurology International
#28
JOURNAL ARTICLE
Teresa K Woodruff, Lauren Ataman-Millhouse, Kelly S Acharya, Teresa Almeida-Santos, Antoinette Anazodo, Richard A Anderson, Leslie Appiah, Joy Bader, Kerri Becktell, Robert E Brannigan, Lesley Breech, Maria T Bourlon, Žana Bumbuliene, Karen Burns, Lisa Campo-Engelstein, Jacira R Campos, Grace M Centola, Mauricio Barbour Chehin, Diane Chen, Michel De Vos, Francesca E Duncan, Ahmed El-Damen, Douglas Fair, Yemi Famuyiwa, Patricia Y Fechner, Paula Fontoura, Olivia Frias, Sabrina A Gerkowicz, Jill Ginsberg, Clarisa R Gracia, Kara Goldman, Veronica Gomez-Lobo, Brent Hazelrigg, Michael H Hsieh, Luis R Hoyos, Alfonso Hoyos-Martinez, Robert Jach, Jacek Jassem, Murid Javed, Yasmin Jayasinghe, Roohi Jeelani, Jacqueline S Jeruss, Nalini Kaul-Mahajan, Jessica Keim-Malpass, Tyler G Ketterl, Mohamed Khrouf, Dana Kimelman, Atsuko Kusuhara, William H Kutteh, Monica M Laronda, Jung Ryeol Lee, Vicky Lehmann, Joseph M Letourneau, Lynda K McGinnis, Eileen McMahon, Lillian R Meacham, Monserrat Fabiola Velez Mijangos, Molly Moravek, Leena Nahata, George Moses Ogweno, Kyle E Orwig, Mary Ellen Pavone, Fedro Alessandro Peccatori, Romina Ileana Pesce, Hanna Pulaski, Gwendolyn Quinn, Ramiro Quintana, Tomas Quintana, Bruno Ramalho de Carvalho, Rosalind Ramsey-Goldman, Joyce Reinecke, Fernando M Reis, Julie Rios, Alice S Rhoton-Vlasak, Kenny A Rodriguez-Wallberg, Cassandra Roeca, Seth J Rotz, Erin Rowell, Mahmoud Salama, Amanda J Saraf, Anibal Scarella, Tara Schafer-Kalkhoff, Deb Schmidt, Suneeta Senapati, Divya Shah, Ariella Shikanov, Margarett Shnorhavorian, Jodi L Skiles, James F Smith, Kristin Smith, Fabio Sobral, Kyle Stimpert, H Irene Su, Kouhei Sugimoto, Nao Suzuki, Mili Thakur, David Victorson, Luz Viale, Wendy Vitek, W Hamish Wallace, Ellen A Wartella, Lynn M Westphal, Stacy Whiteside, Lea H Wilcox, Christine Wyns, Shuo Xiao, Jing Xu, Mary Zelinski
PURPOSE: Today, male and female adult and pediatric cancer patients, individuals transitioning between gender identities, and other individuals facing health extending but fertility limiting treatments can look forward to a fertile future. This is, in part, due to the work of members associated with the Oncofertility Consortium. METHODS: The Oncofertility Consortium is an international, interdisciplinary initiative originally designed to explore the urgent unmet need associated with the reproductive future of cancer survivors...
January 2021: Journal of Assisted Reproduction and Genetics
#29
REVIEW
Dara S Farhadi, Jubran H Jubran, Xiaochun Zhao, Lena Mary Houlihan, Evgenii Belykh, Ali Tayebi Meybodi, Ronald L Smith, Michael T Lawton, Mark C Preul
The incorporation of perspective into art and science revolutionized the study of the brain. Beginning in about 1504, Leonardo da Vinci began to model the ventricles of the brain in three dimensions. A few years later, Andreus Vesalius illustrated radically novel brain dissections. Thomas Willis' work, Cerebri Anatome (1664), illustrated by Christopher Wren, remarkably revealed the brain undersurface. Later, in the early 1800s, Charles Bell's accurate images of neural structures changed surgery. In the 1960s, Albert L...
December 29, 2020: World Neurosurgery
#30
Guilherme H W Ceccato, Gabriela F Kalkmann, Denildo C A Veríssimo, Luis A B Borba
Petroclival meningiomas are complex, deep-seated lesions related to many critical neurovascular structures. We present the case of a 44-year-old woman who had presented with a history of severe facial pain, hearing loss, and tinnitus on the left side, associated with left facial hypoesthesia (Video 1). Preoperative magnetic resonance imaging demonstrated a mass highly suggestive of a left petroclival meningioma. Considering the worsening symptoms and important mass effect, microsurgical resection using the posterior petrosal approach was performed...
March 2021: World Neurosurgery
#31
JOURNAL ARTICLE
Valentine D Verpaalen, J Brad Case, Michael J Dark, S Joel Cardenas-Goicoechea, Matt D Winter, Sarah E Boston, Fernando Garcia-Pereira, Alice S Rhoton-Vlasak, Beau B Toskich
OBJECTIVE: To determine the optimal energy profile for and to assess the feasibility and efficacy of ultrasonographic and laparoscopic guidance for microwave ablation (MWA) of clinically normal canine ovaries. SAMPLE: 44 extirpated ovaries from 22 healthy dogs. PROCEDURES: In the first of 2 trials, 13 dogs underwent oophorectomy by routine laparotomy. Extirpated ovaries underwent MWA at 45 W for 60 (n = 11) or 90 (12) seconds; 3 ovaries did not undergo MWA and served as histologic controls...
September 2020: American Journal of Veterinary Research
#32
JOURNAL ARTICLE
Walter C Jean
An endoscopic "keyhole" approach to a deep-lying skull base lesion can be a daunting challenge. For the pineal region, the techniques for endoscopic resection of solid tumors in this location are also new.1,2 In such a situation, surgical rehearsal in virtual reality (VR) can significantly improve the surgeon's confidence.3 In this operative video, we demonstrate the use of VR in surgical planning and rehearsal to determine the best approach to a large, solid pineal tumor in a 46-yr-old patient. Using the patient's computed tomography angiography and magnetic resonance imaging, a VR model of his anatomy was created (SNAP VR360 version 3...
December 15, 2020: Operative Neurosurgery (Hagerstown, Md.)
#33
JOURNAL ARTICLE
Thanh G Phan, Henry Ma, Mayank Goyal, James Hilton, Matthew Sinnott, Velandai Srikanth, Richard Beare
Endovascular clot retrieval, often referred to as mechanical thrombectomy, has transformed the treatment of patients with ischemic stroke based on an underlying large cerebral vessel occlusion, ranging from the extracranial internal carotid artery (ICA) to the M1 (proximal) segment of the middle cerebral artery (MCA). The aim of this study was to evaluate the effect of a progressive occlusion of the extracranial portion of the ICA on the cerebral blood flow either with a conventional guiding catheter or a balloon-guiding catheter, which enables the operator to completely occlude the parent artery by inflating the balloon around the tip of this type of guiding catheter...
2020: Frontiers in Neurology
#34
Yonghui Jiao, Li Cai, Guilherme H W Ceccato, Guoqiang Chen, Xiaosong Wang
Trigeminal neuralgia is a cause of severe facial pain, usually provoked by a neurovascular conflict, commonly involving the superior cerebellar artery (SCA).1 The superior petrosal venous complex is in the way toward the nerve through a retrosigmoid approach and can narrow the working area around trigeminal nerve.2-4 Nonetheless, instead an obstacle it can be faced in selected cases as an adjunct to help to transpose the offending arterial loop, avoiding undesired venous sacrifice. We present a case of a 64-year-old man with left-sided severe shock-like pain in the V3 territory suggestive of trigeminal neuralgia (Video 1)...
January 2021: World Neurosurgery
#35
REVIEW
Seung H Yang, HaeKwan Park, Do Sung Yoo, Wonil Joo, Albert Rhoton
The facial nerve connections and pathways from the cortex to the brainstem are intricate and complicated. The extra-axial part of the facial nerve leaves the lateral part of the pontomedullary sulcus and enters the temporal bone through the internal acoustic meatus. In the temporal bone, the facial nerve branches into fibers innervating the glands and tongue. After it emerges from the temporal bone it supplies various facial muscles. It contains a motor, general sensory, special sensory, and autonomic components...
January 2021: Clinical Anatomy
#36
JOURNAL ARTICLE
Kirk P Conrad, Melissa Lingis, Larysa Sautina, Shiyu Li, Yueh-Yun Chi, Yingjie Qiu, Mingyue Li, R Stan Williams, Alice Rhoton-Vlasak, Mark S Segal
In women who conceived with or without assisted reproduction, we evaluated endothelial function by EndoPATTM [Reactive Hyperemia Index (RHI)], circulating numbers of endothelial cells (CEC) and endothelial progenitor cells (EPC), and their function before, during and after pregnancy. IVF pregnancies were stratified by method of conception and corpus luteum (CL) number-controlled ovarian stimulation (>1 CL) or programmed (0 CL) cycles, and spontaneous, singleton pregnancies (1 CL). We observed: (1) comparable gestational decline of RHI in the three participant groups secondary to gestational rise of baseline, pre-occlusion pulse wave amplitude (PWA) incorporated into the RHI calculation by EndoPATTM software; (2) progressive rise in "normalized" RHI throughout pregnancy (calculated by substituting pre-pregnancy baseline, pre-occlusion PWA into the RHI equation), greater in spontaneous conception versus IVF cohorts; (3) similar gestational increase of maximum PWA and time to maximum PWA after the ischemia stimulus among the three participant groups; (4) modest gestational increase of ischemia response (reactive hyperemia) in the spontaneous conception group, and no change or significant decline, respectively, in women who conceived using programmed or controlled ovarian stimulation cycles; (5) enhanced basal nitric oxide production by early (primitive) outgrowth EPC during pregnancy in women who conceived spontaneously, but not through IVF; and (6) gestational increase in CEC in all three participant cohorts, more pronounced in women who conceived by IVF using programmed cycles...
April 29, 2020: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
#37
REVIEW
Toshio Matsushima, James Rutka, Ken Matsushima
Surgical approaches to the fourth ventricle and its surrounding brainstem regions have changed significantly in the previous 30 years, after the establishment of cerebellomedullary fissure (CMF) opening. With the development of CMF opening techniques, CMF opening surgeries have become widely used for the treatment of various pathologies and have contributed to the improvement of surgical results in posterior fossa surgeries. We here review the historical progress of CMF opening surgeries to help the future progression of neurosurgical treatments...
April 12, 2020: Neurosurgical Review
#38
JOURNAL ARTICLE
Jaafar Basma, Natalie Guley, L Madison Michael Ii, Kenan Arnautovic, Frederick Boop, Jeff Sorenson
Background Neuroanatomists have long been fascinated by the complex topographic organization of the cerebrum. We examined historical and modern phylogenetic theories pertaining to microneurosurgical anatomy and intrinsic brain tumor development. Methods Literature and history related to the study of anatomy, evolution, and tumor predilection of the limbic and paralimbic regions were reviewed. We used vertebrate histological cross-sections, photographs from Albert Rhoton Jr.'s dissections, and original drawings to demonstrate the utility of evolutionary temporal causality in understanding anatomy...
January 23, 2020: Curēus
#39
JOURNAL ARTICLE
Dominick J Lemas, Jasmine A Mack, Jennifer J Schoch, Nicole Cacho, Elizabeth Plasencia, Alice S Rhoton-Vlasak, Josef Neu, Lindsay Thompson, Magda Francois, Keval Patel, William R Hogan, Gloria P Lipori, Matthew J Gurka
BACKGROUND: Delivery by cesarean section (C-section) is associated with adverse short-term and long-term infant outcomes. Given that antibiotics during early life are prescribed for infant outcomes that are more likely among c-section deliveries, we hypothesized that postnatal antibiotic exposure will be greater among c-section infants compared to vaginally delivered infants. OBJECTIVE: The aim of this paper was to evaluate if mode of infant delivery was associated with patterns of systemic antibiotic exposure in children during their first three years...
2020: PloS One
#40
JOURNAL ARTICLE
Vijay M Ravindra, Guillermo Aldave
Tumors in the third ventricle constitute a challenge for the neurosurgeon, regardless of the chosen approach. The additional risk of severe blood loss in the pediatric population, specially for choroid plexus tumors, which are the most common ventricular tumors in children, adds a significant challenge in these cases. Therefore, a careful selection of the approach in addition to surgical technique is crucial for a favorable outcome. In this video, we discuss the approach selected for the treatment of a large choroid plexus tumor in a 4-mo-old male and highlight the surgical technique chosen for this case, a transcallosal interforniceal approach...
February 3, 2020: Operative Neurosurgery (Hagerstown, Md.)
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