107 results on '"Pavel Kalinin"'
Search Results
102. Results of 1700 Endoscopic Endonasal Transsphenoidal Adenomectomy
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Maxim Kutin, D. V. Fomichev, Boris A. Kadashev, and Pavel Kalinin
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medicine.medical_specialty ,business.industry ,medicine ,Neurology (clinical) ,business ,Surgery - Published
- 2012
103. The Role and Place of Endoscopic Endonasal Transsphenoidal Technique in Pituitary Surgery
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Pavel Kalinin, Boris A. Kadashev, Lyudmila Astafieva, Ravshan B. Faizullaev, Maxim Kutin, D. V. Fomichev, Sergey N. Alekseev, and Alexey N. Shkarubo
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medicine.medical_specialty ,business.industry ,Medicine ,Neurology (clinical) ,business ,Pituitary surgery ,Surgery - Published
- 2009
104. Trans-sphenoidal Surgery for Giant Pituitary Adenomas
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Pavel Kalinin, Maxim Kutin, Sergey N. Alekseev, Boris A. Kadashev, Ravshan B. Faizullaev, and Yurii K. Trunin
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medicine.medical_specialty ,business.industry ,medicine ,Neurology (clinical) ,business ,Trans sphenoidal ,Surgery - Published
- 2007
105. Transcranial Surgery for Giant Pituitary Adenomas
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Sergey N. Alekseev, Yurii K. Trunin, Boris A. Kadashev, Ravshan B. Faizullaev, Maxim Kutin, and Pavel Kalinin
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Transcranial surgery ,medicine.medical_specialty ,business.industry ,Mortality rate ,Nonsurgical treatment ,Surgery ,Postoperative mortality ,Cavernous sinus ,Ischemic stroke ,medicine ,Neurology (clinical) ,Stage (cooking) ,Surgical treatment ,business - Abstract
Purpose: In spite of diagnostic progress and the ability to provide nonsurgical treatment for pituitary adenomas, the problem of surgical treatment for giant pituitary adenomas (> 60 mm) still exists because the frequency of these tumors can reach 10 to 12% in some populations. Material and Methods: We have operated 84 patients with giant (> 60 mm) pituitary adenomas by using transcranial approaches from 2000 to 2005. The majority of tumors (96.4%) had suprasellar extension. Cavernous sinus invasion was found in 69%. Infrasellar spreading was found in 35.7% and antesellar in 6%. In the most cases we saw multidirectional tumor expansion. In 53.6% tumors had no hormonal activity; 34.5% was PRL, 10.7% was GH, and 1.2% was ACTH. Seventy-three tumors were removed by transcranial approaches only and in 11 cases a two-stage technique (trans-sphenoidal stage done 2 to 4 months after the transcranial stage) was used. Results: Postoperative mortality was 10.7% (all 9 cases after single intradural surgery). Improved condition after surgery was found in 40%; in 17.3% the patient's condition was unchanged, and in 42.7% the condition worsened. Severe complications (ischemic stroke, hemorrhage, and infections) totaled 27.4%. Conclusion: Our results show considerable improvement since the 1980s and 1990s. Morbidity rate decreased from 50% to 27.4% and mortality decreased from 30 to 35% to 10.7%. We believe further perfection of the surgical technique, earlier diagnostics, and more active combining of surgery with modern drug and x-ray treatment is possible and worthwhile.
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- 2007
106. Endoscopic-Endonasal Trans-sphenoidal Removal of Pituitary Adenomas: Experience with 300 Patients
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Ravshan B. Faizullaev, Maxim Kutin, Boris A. Kadashev, Sergey N. Alekseev, Pavel Kalinin, and Yurii K. Trunin
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Pathology ,medicine.medical_specialty ,business.industry ,Medicine ,Neurology (clinical) ,business ,Trans sphenoidal ,Surgery - Published
- 2007
107. [Endoscopic transsphenoidal resection of pituitary adenomas invading the cavernous sinus]
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Pavel Kalinin, Fomichev Dv, Kadashev Ba, Alexey N. Shkarubo, O I Sharipov, G F Dobrovol'skiy, E I Shults, D N Andreev, Alekseev Sn, O F Tropinskaya, Igor Pronin, Maxim Kutin, A B Kurnosov, I. A. Voronina, and Astaf'eva Li
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Adult ,Male ,medicine.medical_specialty ,Adolescent ,Transsphenoidal approach ,Resection ,03 medical and health sciences ,0302 clinical medicine ,Pituitary adenoma ,medicine ,Humans ,Pituitary Neoplasms ,In patient ,Aged ,Endoscopes ,business.industry ,Subtotal Resection ,Middle Aged ,Neurovascular bundle ,medicine.disease ,Magnetic Resonance Imaging ,Surgery ,030220 oncology & carcinogenesis ,Cavernous sinus ,Cavernous Sinus ,Female ,Neurology (clinical) ,business ,Meningitis ,030217 neurology & neurosurgery - Abstract
Pituitary adenomas are benign growths that invade the cavernous sinus (CS) in 10-15% of cases. There are different types of microsurgical and endoscopic approaches enabling resection of tumors from the CS cavity that is a relatively small and hard to reach anatomical structure comprising eloquent neurovascular structures.A study group included 97 patients with pituitary adenomas (PAs) invading the CS. PAs were resected using an endoscopic technique: adenomas were resected from the CS cavity through a standard endoscopic endonasal transsphenoidal approach in 62 cases; a lateral extended transsphenoidal endoscopic approach was used in 35 cases. A control group included patients with PAs spreading into the laterosellar region who were operated on using microsurgical extra-intradural (n=14) and transsphenoidal (n=149) approaches. In the study group, the degree of PA invasion into the CS cavity was determined using the Knosp scale.In the study group, total tumor resection was achieved in 49 (50.5%) cases, subtotal resection in 39 (40.2%) cases, and partial resection in 9 (9.3%) patients. In the case of visual disorders (n=70), vision improvement was achieved in 41.4% of cases. Vision deterioration was detected in 11.4% of cases; no vision changes were in 47.1% of cases. Patients (27.8%) who had not had visual impairments before surgery had no negative changes in vision in the postoperative period. The development/augmentation of oculomotor disorders in the study group occurred in 14 (14.4%) cases. In the study group, hormonal remission of the disease in patients with hormone-active PAs was in 26.7% of cases (n=12). There were no cases of nasal liquorrhea, meningitis, and death in the study group.Endoscopic endonasal transsphenoidal resection of PAs invading the CS is a more efficient and safer surgical technique compared to microsurgical techniques (transsphenoidal and extra-intradural approach). The lateral extended transsphenoidal endoscopic approach enables resection of PAs with massive invasion into the CS (Grade III and Grade IV, Knosp scale) and has less postoperative complications compared to the extra-intradural approach (p0.05).Аденомы гипофиза - доброкачественные новообразования, которые в 10-15% случаев врастают в кавернозный синус (КС). Существуют различные виды микрохирургических и эндоскопических доступов, с помощью которых возможно проводить удаление опухолей из полости КС - сравнительно небольшого и труднодоступного анатомического образования, включающего важные нейроваскулярные структуры. Материал и методы. Исследуемая группа - 97 пациентов с аденомами гипофиза (АГ), которые врастали в КС и были удалены с использованием эндоскопической техники (в 62 случаях АГ из полости КС резецировались из стандартного эндоскопического эндоназального транссфеноидального доступа, в 35 наблюдениях применялся латеральный расширенный транссфеноидальный эндоскопический доступ). Группа сравнения - больные с АГ с латероселлярным распространением, которые оперировались с помощью микрохирургических экстраинтрадурального (n=14) и транссфеноидального (n=149) доступов. Степень инвазии АГ в полость КС в исследуемой группе определялась согласно Knosp Scale. Результаты. В исследуемой группе тотального удаления опухоли удалось достичь в 49 (50,5%) случаях, субтотального в 39 (40,2%), частичного - в 9 (9,3%) наблюдениях. При наличии зрительных расстройств (n=70) улучшение зрения было достигнуто в 41,4% наблюдений. Ухудшение зрения выявлено в 11,4% случаев, не отмечено какой-либо динамики в 47,1% наблюдений. Среди пациентов, которые не имели зрительных нарушений до операции (27,8%), отрицательной динамики в послеоперационном периоде выявлено не было. Появление/нарастание глазодвигательных нарушений в исследуемой группе выявлено в 14 (14,4%) случаях. Гормональная ремиссия заболевания среди пациентов с гормонально-активными АГ в исследуемой группе произошла у 12 (26,7%) пациентов. В исследуемой группе не было случаев назальной ликвореи и менингитов, а также летальных исходов. Заключение. Эндоскопическое эндоназальное транссфеноидальное удаление АГ с распространением в КС является более эффективным и более безопасным способом хирургического лечения в сравнении с микрохирургическими методиками (транссфеноидальный и интра-экстрадуральный доступ). Применение латерального расширенного транссфеноидального эндоскопического доступа позволяет резецировать АГ с массивной инвазией в КС (Grade III и Grade IV по Knosp Scale) с меньшим количеством послеоперационных осложнений по сравнению с экстраинтрадуральным доступом (p0,05).
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