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1.
Microsurgery ; 44(3): e31154, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38376241

RESUMEN

INTRODUCTION: Surgical management is recommended in patients with severe neonatal brachial plexus palsy (NBPP) within the first 6 months of age to regain best possible function. Rehabilitation post-surgery remains relatively unexplored. This is a scoping review that explores, which rehabilitation modalities exist and how they vary for different microsurgical approaches in NBPP. MATERIALS AND METHODS: A systematic search was conducted to include articles about upper trunk obstetric brachial plexus nerve microsurgery in pediatric patients that made mention of rehabilitation protocols. The aims of rehabilitation modalities varied and were grouped: "passive" movement to prevent joint contracture or stiffness, "active" or task-oriented movement to improve motor function, or "providing initial motor recovery". Surgical approach was described as either exploration of the brachial plexus (EBP) or nerve transfer without root exploration (NTwoRE). Technique was categorized into transfers and non-transfers. RESULTS: Thirty-six full-text articles were included. Initiation of rehabilitation was 22.26 days post-surgery. Twenty-eight studies were EBP, and six were NTwoRE. Of studies classifiable by aims, nine were "passive", nine were "active", and five were "providing initial motor recovery". Only 27.7% of EBP studies mentioned active therapy, while 75.0% of NTwoRE studies mentioned active therapy. The average age of patients in the EBP procedure category was 7.70 months, and NTwoRE was 17.76 months. Within transfers, the spinal accessory to suprascapular group was more likely to describe an active shoulder exercise therapy, whereas contralateral C7 group was more likely to describe "initial motor recovery", especially through the use of electrostimulation. All articles on electrostimulation recommended 15-20-minute daily treatment. CONCLUSION: Information on rehabilitation is limited post-nerve surgery in NBPP. However, when mentioned, the aims of these therapies vary with respect to surgical approach and technique. The type of therapy to employ may be a multifaceted decision, involving factors such as patient age, initial deformity, and goals of the care team.


Asunto(s)
Parálisis Neonatal del Plexo Braquial , Humanos , Recién Nacido , Neuropatías del Plexo Braquial/cirugía , Protocolos Clínicos , Microcirugia/métodos , Parálisis Neonatal del Plexo Braquial/cirugía , Transferencia de Nervios/métodos , Procedimientos Neuroquirúrgicos/métodos , Recuperación de la Función
2.
Photodiagnosis Photodyn Ther ; 45: 103994, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38295923

RESUMEN

INTRODUCTION: Persistent apical periodontitis after root canal treatment may require surgical retreatment when non-surgical options are ineffective or impractical due to anatomical challenges or iatrogenic errors. Endodontic microsurgery (EMS) is a precise technique that aims to overcome extraradicular biofilm and root morphology issues. Photodynamic therapy (PDT) is an emerging supplementary disinfection approach that utilizes a photosensitizer agent and light to eliminate microorganisms through oxidative reactions. REPORT: A 60-year-old male with persistent apical periodontitis in a left maxillary first molar underwent non-surgical root canal retreatment followed by surgical reintervention due to anatomical complexities. During surgery, PDT was performed using a novel curcumin-based photosensitizer agent. After the procedure, the tooth was retrofilled with bioceramic cement, and photobiomodulation was applied to enhance tissue healing. One year post-surgery, the patient exhibited complete periradicular repair and remained asymptomatic. DISCUSSION: EMS is considered a last resort to salvage an endodontically treated tooth and has shown moderate success rates. PDT has demonstrated promise in improving periapical healing and reducing microorganisms. In this case, curcumin, diluted with 2 % chlorhexidine gel, served as an effective photosensitizer agent with antimicrobial properties. Moreover, performing photobiomodulation aided in cell recovery and reduced postoperative discomfort. CONCLUSION: The proposed EMS treatment protocol with PDT using curcumin yielded positive outcomes in this case report. Further randomized clinical trials are necessary to assess the efficacy of this approach in EMS. Additionally, further research on curcumin-based photosensitizer agents encapsulated in nanoparticles and enhanced antimicrobial agents is recommended to refine this treatment protocol for routine use.


Asunto(s)
Curcumina , Periodontitis Periapical , Fotoquimioterapia , Masculino , Humanos , Persona de Mediana Edad , Curcumina/uso terapéutico , Microcirugia , Fármacos Fotosensibilizantes/uso terapéutico , Fotoquimioterapia/métodos , Periodontitis Periapical/tratamiento farmacológico , Periodontitis Periapical/cirugía
3.
Acta cir. bras ; Acta cir. bras;39: e391324, 2024. tab, graf, ilus
Artículo en Inglés | LILACS, VETINDEX | ID: biblio-1556671

RESUMEN

Purpose: To develop a new 4/6 infarct nephrectomy (INx) model rat mimicking moderate chronic kidney disease (CKD) and to evaluate its application. Methods: We modified the conventional 5/6 INx rat model to create the 4/6 INx model by ligating the renal artery branch to induce infarction of one-third of the left kidney after right kidney removal and compared biochemically and histologically both models. To demonstrate the application of the 4/6 INx model, the effects of a supplementary compound containing calcium carbonate, chitosan, palm shell activated charcoal etc., that is effective for both CKD and its complications, were compared between both models. Results: Impairment of renal function in the 4/6 INx group was significantly more moderate than in the 5/6 INx group (P < 0.05). The 4/6 INx group showed less histological damage in kidney than in the 5/6 INx group. The supplementary compound did not improve CKD in the 5/6 INx group, but ameliorated elevation of blood urea nitrogen in the 4/6 INx group. Conclusions: We developed the 4/6 INx model, which is more moderate than the conventional 5/6 INx model. This model could potentially demonstrate the effectiveness of drugs and supplements intended to prevent CKD and its progression.


Asunto(s)
Animales , Ratas , Insuficiencia Renal Crónica , Animales de Laboratorio , Microcirugia , Nefrectomía
4.
J Endod ; 49(5): 597-603, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36894023

RESUMEN

The purpose of this case report was to inform dentists and dental specialists about a noninvasive, viable treatment option that could aid in the recovery of patients who have experienced iatrogenic nerve injuries. Nerve injury is an inherent risk of many dental procedures and a complication that can negatively impact a patient's quality of life and activities of daily living. Managing neural injuries presents a challenge for clinicians because there are no standard protocols reported in the literature. Although spontaneous healing of these injuries can occur, the duration and degree of healing can vary greatly between individuals. Photobiomodulation (PBM) therapy is used as an adjunct in medicine for functional nerve recovery. Once target tissues are illuminated with a low-level laser during PBM, the light energy is absorbed by the mitochondria causing adenosine triphosphate production, modulation of reactive oxygen species, and the release of nitric oxide. These cellular changes explain why PBM has been shown to aid in cell repair, vasodilation, a reduction in inflammation, accelerated healing, and an improvement in postoperative pain. This case report presents 2 patients with neurosensory alterations after endodontic microsurgery with a significant improvement in their condition after PBM treatment using a 940-nm diode laser.


Asunto(s)
Terapia por Luz de Baja Intensidad , Microcirugia , Humanos , Actividades Cotidianas , Calidad de Vida , Rayos Láser , Terapia por Luz de Baja Intensidad/métodos
5.
Eur Surg Res ; 64(2): 246-251, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36574758

RESUMEN

INTRODUCTION: We have developed a modified vasoepididymostomy procedure, namely "fenestrated" transversal two-suture microsurgical intussusception vasoepididymostomy. This study aimed to investigate the therapeutic efficacy and outcome of this fenestrated vasoepididymostomy for epididymal obstructive azoospermia (OA). METHODS: Microsurgical two-suture transversal intussusception vasoepididymostomy was performed using our modified fenestration technique in 64 OA patients due to epididymal obstruction at our hospital. Fenestration means making an opening on the epididymal tubule wall. The edges of the epididymal tubule "window" were stitched transversally (two stitches) using the two double-armed 9-0 atraumatic sutures. The epididymal tubule was anastomosed to the lumen of the vas deferens. The patency rate and pregnancy rate were assessed. RESULTS: Of the 64 OA patients, 45 received bilateral microsurgical two-suture transversal intussusception vasoepididymostomy, while 19 underwent unilateral microsurgical two-suture transversal intussusception vasoepididymostomy. All of the patients were followed up after the operation. The follow-up period ranged from 4 to 54 months. Among 45 cases of bilateral surgery, the patency rate was 88.89% (40/45), and the natural pregnancy rate was 28.89% (13/45). After the patency was confirmed postoperatively, 3 cases had recurrent OA, of which 2 cases had return of sperm to the ejaculate by oral antibiotics and scrotal self-massage. As for the 19 cases of unilateral microsurgery, the patency rate was 68.42% (13/19), and the natural pregnancy rate was 21.05% (4/19). CONCLUSION: The fenestrated transversal two-suture microsurgical intussusception vasoepididymostomy can achieve a good patency rate in OA patients and did not increase the difficulty and duration of the procedure.


Asunto(s)
Azoospermia , Intususcepción , Embarazo , Femenino , Humanos , Masculino , Azoospermia/cirugía , Intususcepción/cirugía , Semen , Epidídimo/cirugía , Suturas , Microcirugia/métodos
6.
Otol Neurotol ; 43(10): 1240-1244, 2022 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-36240730

RESUMEN

OBJECTIVE: To evaluate the optimal dose and timing of administration of sodium fluorescein (SF) for selective fluorescence of sporadic vestibular schwannoma (VS) during microsurgery with the YELLOW 560-nm microscope filter (YE560) and to characterize the potential benefit of this fluorescence as determined by intraoperative surgeon assessment. STUDY DESIGN: Prospective cohort study. SETTING: Tertiary referral center. PATIENTS: Adult patients undergoing VS microsurgery. INTERVENTIONS: Intraoperative intravenous administration of SF and visualization with the YE560. MAIN OUTCOME MEASURES: Time to differential fluorescence, duration of fluorescence, correlation of fluorescence of VS with electrostimulation and white light microscopy visual assessment, and likelihood of surgeons to use SF with the YE560 in future cases. RESULTS: Novel use of SF and YE560 during microsurgery achieved selective fluorescence of VS with capabilities to differentiate nerve fascicles and tumor approximately 30 minutes after administration. Nuances of SF administration and timing are discussed. Seventy-five percent of surgeons observed an excellent correlation of selective fluorescence with white light microscopy. Representative images and cases are presented. CONCLUSIONS: SF and YE560 may be used in VS microsurgery to visually differentiate VS from surrounding nerves. Potential benefits include enhanced visualization of the tumor-nerve interface for tumor dissection and detection of any residual disease, such as in the fundus after hearing preservation microsurgery.


Asunto(s)
Neuroma Acústico , Adulto , Humanos , Neuroma Acústico/patología , Fluoresceína , Estudios Prospectivos , Estudios de Factibilidad , Microcirugia/métodos , Resultado del Tratamiento
7.
Handchir Mikrochir Plast Chir ; 54(4): 326-338, 2022 Aug.
Artículo en Alemán | MEDLINE | ID: mdl-35944536

RESUMEN

Breast cancer-related lymphedema of the upper extremity is the most significant non-oncological complication of tumour therapy, leading to functional impairment and impacting patients' quality of life. Autologous breast reconstruction per se effectively reduces incidence and stage of lymphedema after breast cancer treatment by surgical angiogenesis. In addition, modern surgical techniques for treating lymphedema are effective in reducing limb volume, circumference and functional impairment, and improving patients' quality of life, body image, integrity and local immunocompetence. Reconstructive surgery, including lymphovenous anastomoses (LVA) and vascularised lymph node transfer (VLNT), have been shown to rearrange or restore lymphatic flow and prevent stage progression. For patients with breast cancer-related lymphedema after mastectomy, autologous breast reconstruction in conjunction with lymphatic microsurgery using VLNT, LVA or a combination of these procedures offers the option of holistic and single-stage restoration in modern senology. Extensive scar release in the axilla is a crucial component of the surgical technique, aiming to prepare the recipient bed for the VLN transplant and to allow for the functional recruitment of remaining lymph vessels of the upper extremity. This article presents the indications, preoperative diagnostic evaluation, surgical techniques and precautions, complications and results of combined lymphatic and breast restoration.


Asunto(s)
Neoplasias de la Mama , Vasos Linfáticos , Linfedema , Mamoplastia , Anastomosis Quirúrgica/efectos adversos , Anastomosis Quirúrgica/métodos , Neoplasias de la Mama/patología , Neoplasias de la Mama/cirugía , Femenino , Humanos , Ganglios Linfáticos/cirugía , Vasos Linfáticos/cirugía , Linfedema/cirugía , Mastectomía/efectos adversos , Microcirugia/métodos , Calidad de Vida
8.
Rev. cir. (Impr.) ; 74(4): 392-399, ago. 2022. tab
Artículo en Español | LILACS | ID: biblio-1407941

RESUMEN

Resumen Introducción: El linfedema es una enfermedad inflamatoria crónica que afecta cerca de 250 millones de personas en el mundo. El tratamiento tradicional es la terapia descongestiva. Últimamente, existe la opción de complementar el tratamiento tradicional con procedimientos quirúrgicos fisiológicos como anastomosis linfáticovenosas y transferencia de linfonodos vascularizados. Sin embargo, la evidencia del uso de la terapia descongestiva en los cuidados pre y posoperatorios en estas cirugías es limitada. Objetivo: Evaluar el uso de terapia descongestiva como complemento a la cirugía de linfedema mediante anastomosis linfáticovenosas y transferencia de linfonodos vascularizados. Materiales y Método: Se realizó una revisión de la literatura en las siguientes bases de datos: Cochrane, Pubmed y Google académico, utilizando los siguientes términos mesh: "anastomosis, surgical", "lymphedema", "perioperative care", "microsurgery", "rehabilitation", "therapy", "lymph nodes", "bypass", "lymphedema and microsurgery". Se incluyó aquellos artículos que describían el uso de la terapia descongestiva en los cuidados pre- y posoperatorios. Resultados: Se identificó un total de 201 artículos y 12 fueron incluidos en el análisis. La evidencia reporta que las terapias más usadas en el cuidado pre- y posoperatorio son compresión, drenaje linfático manual y tratamientos personalizados. Sin embargo, la mayoría de los autores hace una descripción vaga de las terapias mencionadas. Discusión y Conclusión: La evidencia respecto al uso de terapia descongestiva como tratamiento complementario es débil. Los expertos recomiendan su uso, sin embargo, se necesitan futuras investigaciones que describan el uso de cada uno de sus componentes como complemento de procedimientos quirúrgicos fisiológicos para el manejo del linfedema.


Background: Lymphedema is a disease that affects about 250 million people around the world. The traditional treatment is decongestive therapy. In the past years, there is the option to complementing the traditional treatment with physiological surgical procedures such as lymphatic-venous anastomosis (LVA) and vascularized lymph node transfer (VLNT). However, the evidence for the use of decongestive therapy in pre- and post-operative care in these surgeries is limited. Aim: To evaluate the use of decongestive therapy as a complement to lymphedema surgery such a lymphatic-venous anastomosis and transfer of vascularized lymph nodes. Materials and Method: A literature review was carried out in the following databases: Cochrane, Pubmed and Academic Google, using the following mesh terms: "anastomosis, surgical", "lymphedema", "perioperative care", "microsurgery", "rehabilitation", "therapy", "lymph nodes","bypass", "lymphedema and microsurgery". "Those articles that described the use of decongestive therapy in pre- and post-operative care were included. Results: 201 articles were identified and 12 were included in the analysis. The evidence reports that the most used therapies in pre- and post-operative care are compression, manual lymphatic drainage and personalized treatments. However, most of the authors give a vague description of the mentioned therapies. Discussion and Conclusion: The evidence regarding the use of decongestive therapy as a complementary treatment is weak. Experts recommend its use; however, future research is needed to describe the use of each of its components as a complement to physiological surgical procedures for the management of lymphedema.


Asunto(s)
Humanos , Vasos Linfáticos/cirugía , Vasos Linfáticos/diagnóstico por imagen , Linfangitis/cirugía , Linfedema/cirugía , Linfedema/etiología , Neoplasias/cirugía , Neoplasias/complicaciones , Diseño de Software , Anastomosis Quirúrgica/métodos , Resultado del Tratamiento , Ganglios Linfáticos , Microcirugia/métodos
9.
J Clin Neurosci ; 99: 233-238, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35298942

RESUMEN

OBJECTIVE: To compare the area of exposure to the cisternal thalamus associated with four surgical techniques: supracerebellar-infratentorial (SCIT), occipital interhemispheric (OI), transchoroidal (TC) and subtemporal before and after parahippocampal resection (ST and STh, respectively). METHODS: All approaches were performed on both sides of three heads. Qualitative anatomical analyses were performed to understand anatomical limits, advantages, and flaws of each technique. Quantitative analyses for multiple repeated dependent variables assessed significant differences between areas of exposure. RESULTS: Exposure area was significantly more extensive using TC and STh approaches compared to ST, OI, and SCIT. STh achieved a significantly wider exposure compared to ST. Regarding dissection angle, surrounding structures and limitations, ST approaches do not provide adequate exposure, nor alignment with the thalamic axis. The OI and STh may provide a better field of exposure, but without adequate alignment and challenging deeper dissections. TC provides better exposure of the cisternal pulvinar with access to lateral pulvinar at the atrium's anterior wall but is a transcortical route that disrupts non-pathological tissue. SCIT provides an adequate area of exposure with the possibility of alignment with the thalamus axis, thus allowing an easier dissection of deeper lesions. CONCLUSIONS: For lesions at the pulvinar surface, OI and STh are adequate. For lesions restricted to medial pulvinar and deep along the thalamus axis, SCIT approaches are recommended. Lesions extending to the lateral pulvinar and ventricular atrium are best removed through TC approaches. The ST approach was not suitable to the cisternal pulvinar due to its limited angular exposure.


Asunto(s)
Pulvinar , Cadáver , Humanos , Microcirugia/métodos , Procedimientos Neuroquirúrgicos/métodos , Pulvinar/diagnóstico por imagen , Pulvinar/cirugía , Tálamo/diagnóstico por imagen , Tálamo/cirugía
10.
BMJ ; 376: e065846, 2022 02 21.
Artículo en Inglés | MEDLINE | ID: mdl-35190388

RESUMEN

OBJECTIVE: To assess whether percutaneous transforaminal endoscopic discectomy (PTED) is non-inferior to conventional open microdiscectomy in reduction of leg pain caused by lumbar disc herniation. DESIGN: Multicentre randomised controlled trial with non-inferiority design. SETTING: Four hospitals in the Netherlands. PARTICIPANTS: 613 patients aged 18-70 years with at least six weeks of radiating leg pain caused by lumbar disc herniation. The trial included a predetermined set of 125 patients receiving PTED who were the learning curve cases performed by surgeons who did not do PTED before the trial. INTERVENTIONS: PTED (n=179) compared with open microdiscectomy (n=309). MAIN OUTCOME MEASURES: The primary outcome was self-reported leg pain measured by a 0-100 visual analogue scale at 12 months, assuming a non-inferiority margin of 5.0. Secondary outcomes included complications, reoperations, self-reported functional status as measured with the Oswestry Disability Index, visual analogue scale for back pain, health related quality of life, and self-perceived recovery. Outcomes were measured until one year after surgery and were longitudinally analysed according to the intention-to-treat principle. Patients belonging to the PTED learning curve were omitted from the primary analyses. RESULTS: At 12 months, patients who were randomised to PTED had a statistically significantly lower visual analogue scale score for leg pain (median 7.0, interquartile range 1.0-30.0) compared with patients randomised to open microdiscectomy (16.0, 2.0-53.5) (between group difference of 7.1, 95% confidence interval 2.8 to 11.3). Blood loss was less, length of hospital admission was shorter, and timing of postoperative mobilisation was earlier in the PTED group than in the open microdiscectomy group. Secondary patient reported outcomes such as the Oswestry Disability Index, visual analogue scale for back pain, health related quality of life, and self-perceived recovery, were similarly in favour of PTED. Within one year, nine (5%) in the PTED group compared with 14 (6%) in the open microdiscectomy group had repeated surgery. Per protocol analysis and sensitivity analyses including the patients of the learning curve resulted in similar outcomes to the primary analysis. CONCLUSIONS: PTED was non-inferior to open microdiscectomy in reduction of leg pain. PTED resulted in more favourable results for self-reported leg pain, back pain, functional status, quality of life, and recovery. These differences, however, were small and may not reach clinical relevance. PTED can be considered as an effective alternative to open microdiscectomy in treating sciatica. TRIAL REGISTRATION: NCT02602093ClinicalTrials.gov NCT02602093.


Asunto(s)
Discectomía/métodos , Endoscopía , Microcirugia/métodos , Dolor/cirugía , Ciática/cirugía , Adolescente , Adulto , Anciano , Femenino , Humanos , Pierna , Vértebras Lumbares , Masculino , Persona de Mediana Edad , Dolor/diagnóstico , Dolor/etiología , Dimensión del Dolor/estadística & datos numéricos , Calidad de Vida , Ciática/complicaciones , Autoinforme/estadística & datos numéricos , Resultado del Tratamiento , Adulto Joven
11.
Zhonghua Nan Ke Xue ; 28(6): 489-494, 2022 Jun.
Artículo en Chino | MEDLINE | ID: mdl-37477464

RESUMEN

OBJECTIVE: To compared the traditional Chinese medicine Danhong Tongjing Prescription (DTP) and microsurgery in the treatment of varicocele (VC)-induced infertility and investigate the factors influencing the recovery of semen parameters of the patients. METHODS: We retrospectively analyzed the clinical data on 218 cases of VC-induced infertility with qi-deficiency and blood-stasis treated with DTP (n = 86) or by microsurgery (n = 132) in our hospital from January 2017 to July 2019, and compared the semen parameters between the two groups of patients after treatment. With age, course of disease, degree of VC, change of the testis volume, estrogen/testosterone (E/T) ratio and levels of FSH and LH as independent variables, and increased semen parameters after treatment as dependent variables, we constructed a multivariate linear regression model and identified statistically significant independent variables. RESULTS: After treatment, sperm concentration and the percentages of progressively motile sperm (PMS) and morphologically normal sperm (MNS) were obviously improved in both the DTP and microsurgery groups, with statistically significant difference between the two groups in sperm concentration and MNS, but not in PMS. Linear regression analysis showed that the severity of VC was an influencing factor for the recovery of sperm concentration after treatment in the DTP group (r = -11.599, Ra2 = 0.044 9) and the course of VC infertility was a factor affecting the recovery of sperm count in the microsurgery group (r = -1.837, Ra2 = 0.035 7). CONCLUSION: DTP is comparable to microsurgery in improving sperm motility while microsurgery is more effective in increasing the percentage of MNS in the treatment of VC-induced infertility. Early surgery is recommended for the treatment of infertility induced by severe bilateral VC, and DTP can be selected for infertility caused by mild or moderate bilateral VC if the patient is unwilling to accept surgery or microsurgery is inaccessible in the hospital.


Asunto(s)
Infertilidad Masculina , Varicocele , Humanos , Masculino , Varicocele/complicaciones , Varicocele/cirugía , Infertilidad Masculina/etiología , Infertilidad Masculina/cirugía , Estudios Retrospectivos , Semen , Microcirugia/efectos adversos , Motilidad Espermática , Recuento de Espermatozoides , Análisis Multivariante
12.
Acta Neurochir (Wien) ; 163(9): 2497-2501, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-34164736

RESUMEN

BACKGROUND: The surgical management of deep brain lesions is challenging, with significant morbidity. Advances in surgical technology have presented the opportunity to tackle these lesions. METHODS: We performed a complete resection of a thalamic/internal capsule CM using a tubular retractor system via a parietal trans-sulcal para-fascicular (PTPF) approach without collateral injury to the nearby white matter tracts. CONCLUSION: PTPF approach to lateral thalamic/internal capsule lesions can be safely performed without injury to eloquent white matter fibres. The paucity of major vessels along this trajectory and the preservation of lateral ventricle integrity make this approach a feasible alternative to traditional approaches.


Asunto(s)
Neoplasias Encefálicas , Cápsula Interna , Neoplasias Encefálicas/cirugía , Humanos , Cápsula Interna/diagnóstico por imagen , Cápsula Interna/cirugía , Microcirugia , Procedimientos Neuroquirúrgicos , Tálamo/diagnóstico por imagen , Tálamo/cirugía
13.
BMC Complement Med Ther ; 21(1): 162, 2021 Jun 04.
Artículo en Inglés | MEDLINE | ID: mdl-34088292

RESUMEN

BACKGROUND: Recent experimental studies using herbal extracts have shown the possibility of peripheral nerve regeneration. This study aimed to investigate the effects of herbal extracts on peripheral nerve regeneration in a rat sciatic nerve injury model. METHODS: A total of 53 rats were randomly assigned to a control group or one of four experimental groups. In all rats, the sciatic nerve was completely severed and microscopic epineural end-to-end neurorrhaphy was performed. Normal saline (2 mL) was topically applied to the site of nerve repair in the control group, whereas four different herbal extracts - 2 mL each of Astragalus mongholicus Bunge, Coptis japonica (Thunb.) Makino, Aconitum carmichaelii Debeaux, or Paeonia lactiflora Pall. - were topically applied to the site of nerve repair in each experimental group. Nerve conduction studies were performed at an average of 11.9 weeks after the operation, and conduction velocity and proximal and distal amplitudes were measured. Biopsies were performed at an average of 13.2 weeks after the initial neurorrhaphy. The quality of nerve anastomosis and perineural adhesion to the surrounding soft tissues was macroscopically evaluated. The neuroma size at the site of the neurorrhaphy was microscopically measured, whereas the size of the scar tissue was evaluated relative to the diameter of the repaired nerve. RESULTS: The nerve conduction study results showed the highest nerve conduction velocity in the experimental group that used the Coptis japonica (Thunb.) Makino extract and the highest proximal and distal amplitudes in the experimental group that used the Aconitum carmichaelii Debeaux extract. Macroscopic evaluations after the second operation showed that grade 2 perineural adhesion was found in 70.8% of rats. The mean neuroma size in the Coptis japonica (Thunb.) Makino, Aconitum carmichaelii Debeaux, and Paeonia lactiflora Pall. groups showed statistically significant decreases relative to the control group. The mean scar tissue formation index in the Paeonia lactiflora Pall. group showed a statistically significant decrease relative to the control group. CONCLUSIONS: The peripheral nerve regeneration effect of the herbal extracts was confirmed through decreased neuroma and scar tissue formation.


Asunto(s)
Microcirugia , Regeneración Nerviosa/efectos de los fármacos , Traumatismos de los Nervios Periféricos , Extractos Vegetales/farmacología , Nervio Ciático/efectos de los fármacos , Animales , Masculino , Conducción Nerviosa/efectos de los fármacos , Traumatismos de los Nervios Periféricos/metabolismo , Traumatismos de los Nervios Periféricos/cirugía , Ratas , Ratas Sprague-Dawley , Nervio Ciático/lesiones , Nervio Ciático/cirugía
14.
Medicine (Baltimore) ; 100(13): e25357, 2021 Apr 02.
Artículo en Inglés | MEDLINE | ID: mdl-33787638

RESUMEN

BACKGROUND: Total ear amputation is a relatively rare trauma with an absolute indication for surgical treatment. Numerous techniques for auricular reconstruction have been described. When local and general conditions allow microsurgical replantation, this must be the first choice. We propose the association of microsurgical techniques with some modification (modified Baudet technique) to obtain higher survival rate of the reimplanted stump. METHODS: This study included cases of 3 male patients with total ear amputation, the injuries and their mechanism (workplace accident) being identical. Chief complaints were pain, bleeding, important emotional impact due by an unaesthetic appearance. The established diagnosis was traumatic complete ear amputation (grade IV auricular injury according to Weerda classification). Microsurgical replantation was performed only with arteriorraphy, and no vein anastomosis. Cartilage incisions and skin excisions were made to enlarge the cartilage-recipient site contact area. Medicinal leeches were used to treat venous congestion, to which systemic anticoagulant therapy was added. RESULTS: The results showed the survival of the entire replanted segment in all cases, with good function and esthetical appearance. Patients were fully satisfied with the final outcome. CONCLUSION: Microsurgical replantation is the gold standard, for the surgical treatment of total ear amputation. We believe that cartilage incisions and the increased surface of contact between cartilage and recipient site has an adjuvant role in revascularization of the amputated stump (with only arterial anastomosis) and the use of hirudotherapy helps to relieve early venous congestion.


Asunto(s)
Amputación Traumática/cirugía , Arterias/cirugía , Oído Externo/cirugía , Microcirugia/métodos , Reimplantación/métodos , Procedimientos Quirúrgicos Vasculares/métodos , Anastomosis Quirúrgica/métodos , Animales , Oído Externo/irrigación sanguínea , Oído Externo/lesiones , Estética , Hirudo medicinalis , Humanos , Hiperemia/etiología , Hiperemia/prevención & control , Aplicación de Sanguijuelas/métodos , Masculino , Microcirugia/efectos adversos , Persona de Mediana Edad , Satisfacción del Paciente , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/prevención & control , Reimplantación/efectos adversos , Resultado del Tratamiento , Procedimientos Quirúrgicos Vasculares/efectos adversos
15.
Khirurgiia (Mosk) ; (4): 5-14, 2021.
Artículo en Ruso | MEDLINE | ID: mdl-33759462

RESUMEN

OBJECTIVE: To develop the algorithm for correction of defects following high-voltage electrical trauma with revascularized autografts, to assess the incidence and risk factors of postoperative complications. MATERIAL AND METHODS: Surgical interventions were performed in 16 men. Autografts were selected considering localization of defect and preoperative ultrasound data on perfusion of donor and recipient areas. We applied a sample with temporary compression of the vessels and ultrasound scanning of arteries and veins (a small-sized Doppler sound indicator of blood flow velocity - MINIDOP, BIOSS). RESULTS: Nine patients underwent microsurgical transplantation of revascularized flaps. Six patients with electrical trauma of the upper extremities underwent transplantation of free skin autografts and transposition of flexor and extensor muscles of the fingers in various combinations. In 1 patient, simultaneous microsurgical graft transplantation and plasty with local tissues were carried out. Microsurgical transplantation of thoracodorsal flap was performed in 2 patients with maxillofacial defect (with preliminary deepidermization of the flap in one case). In 3 patients with traumatic amputation of the penis, 2 patients underwent phalloplasty with a thoracodorsal flap and prefabrication of a radial forearm graft at the first stage. At the next stage, urethroplasty with a prefabricated radial forearm graft was performed. In 1 patient, closure of the penis defect was carried out using scrotal flaps. CONCLUSION: An integrated surgical approach, the use of free revascularized autografts and adequate postoperative management ensure high-quality aesthetic and functional restoration, improvement of the quality of life and social adaptation of patients with defects and deformations following high-voltage electrical injury.


Asunto(s)
Traumatismos por Electricidad/cirugía , Procedimientos de Cirugía Plástica , Colgajos Quirúrgicos , Quemaduras por Electricidad/diagnóstico por imagen , Quemaduras por Electricidad/cirugía , Traumatismos por Electricidad/diagnóstico por imagen , Humanos , Incidencia , Masculino , Microcirculación , Microcirugia , Calidad de Vida , Procedimientos de Cirugía Plástica/efectos adversos , Factores de Riesgo , Trasplante de Piel/métodos , Colgajos Quirúrgicos/irrigación sanguínea , Colgajos Quirúrgicos/trasplante , Trasplante Autólogo , Resultado del Tratamiento , Ultrasonografía Doppler , Heridas y Lesiones/diagnóstico por imagen , Heridas y Lesiones/cirugía
16.
J Laparoendosc Adv Surg Tech A ; 31(4): 497-504, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33651634

RESUMEN

Purpose: We are presenting a very minimally invasive technique for laparoscopic appendectomy (needlescopic appendectomy [NAP]) in children and adolescents using suture grasper device, epidural needle, and homemade isolated long diathermy probe without any conventional laparoscopic instruments. Patients and Methods: NAP was attempted in 48 patients with uncomplicated acute appendicitis at Al-Azhar, Tanta University Hospitals and other allied hospitals during the period from May 2017 to November 2018. The study included patients with acute appendicitis and patients scheduled for interval appendectomy. Exclusion criteria were patients with concealed appendix, patients with appendicular abscess or appendicular mass, patients with acute appendicitis complicated with generalized peritonitis, and patients unfit for laparoscopy. The appendix was brought outside through the umbilical port and the operation was completed extracorporeally. In cases of appendicitis with tethered cecum, the whole procedure was completed intracorporeally. Results: Forty-eight patients with acute uncomplicated appendicitis were treated by NAP. They were 36 males and 12 females with a mean age of 9 ± 3.7 years (range = 4-15 years). Two cases with concealed appendix and one case with appendicular mass were diagnosed during initial laparoscopy and excluded from the study. Thirty-two cases (71.11%) were completed intracorporeally and 13 cases (28.89%) were completed by extracorporeal NAP. The mean operative time was 33.29 ± 3.95 minutes (range = 27-40 minutes) for intracorporeal NAP and 20.9 ± 7.01 minutes (range = 14-40 minutes) for extracorporeal NAP. Degrees of cosmetic satisfaction of the patients and parents were excellent in 93.33% (N = 42/45 patients), and very good in 6.67% (N = 3/45 patients) of patients. Conclusion: NAP using needles only is a new technique that is very minimally invasive, very cheap, safe, reproducible, and easy to be done with outstanding cosmetic results.


Asunto(s)
Apendicectomía/métodos , Apendicitis/cirugía , Apéndice/cirugía , Laparoscopía/métodos , Agujas , Tempo Operativo , Ombligo/cirugía , Absceso/cirugía , Enfermedad Aguda , Adolescente , Niño , Preescolar , Diatermia , Femenino , Fuerza de la Mano , Hospitales Universitarios , Humanos , Hipertermia Inducida , Masculino , Microcirugia , Satisfacción del Paciente , Peritonitis/cirugía , Instrumentos Quirúrgicos
17.
Curr Urol Rep ; 22(2): 12, 2021 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-33447905

RESUMEN

PURPOSE OF REVIEW: Chronic scrotal content pain (CSCP) is a complex condition with multiple etiologies that requires a thorough understanding of its pathophysiology, workup, and treatment options. We performed a comprehensive and contemporary review to augment our current understanding of CSCP. RECENT FINDINGS: We discuss new advances in CSCP-specific pain questionnaires, modern studies of microscopic spermatic cord denervation and its variations, and novel techniques including electric nerve stimulation and cryoablation in addition to randomized control trials with significant negative findings. We also present literature focusing on the prevention of CSCP secondary to surgical iatrogenic causes. The constantly evolving literature of CSCP has led to the significant evolution in its diagnosis and treatment, from oral medications to salvage options after microscopic spermatic cord denervation. With each advance, we come closer to developing a more thorough, evidence-based algorithm to guide urologists in treatment of CSCP.


Asunto(s)
Dolor Crónico/terapia , Enfermedades de los Genitales Masculinos/terapia , Escroto , Algoritmos , Dolor Crónico/etiología , Criocirugía , Desnervación/métodos , Terapia por Estimulación Eléctrica , Enfermedades de los Genitales Masculinos/diagnóstico , Enfermedades de los Genitales Masculinos/etiología , Humanos , Enfermedad Iatrogénica/prevención & control , Masculino , Microcirugia , Dimensión del Dolor , Dolor Pélvico/etiología , Dolor Pélvico/terapia , Ensayos Clínicos Controlados Aleatorios como Asunto , Enfermedades de la Piel/diagnóstico , Enfermedades de la Piel/etiología , Enfermedades de la Piel/terapia , Cordón Espermático/inervación , Enfermedades Testiculares/diagnóstico , Enfermedades Testiculares/terapia
18.
Eur Arch Otorhinolaryngol ; 278(8): 2983-2992, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33403435

RESUMEN

PURPOSE: CO2 transoral laser microsurgery (CO2 TOLMS) is an alternative approach to non-surgical organ preservation in selected T3 glottic squamous cell carcinoma (SCC). This study aimed to assess the oncologic results and quality of life (QOL) of patients with T3 glottic SCC after CO2 TOLMS. METHODS: Of the 44 patients who underwent CO2 TOLMS, 38 underwent QOL evaluations. QOL was measured using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-C30 and head and neck module, Voice Handicap Index-30, and M. D. Anderson Dysphagia Inventory at least 6 months postoperatively. RESULTS: The patients were predominantly male (98%), with a median age of 61 years. Cordectomy type included 1 type III, 4 type IV, 31 type V, and 8 type VI according to European Laryngological Society classification. Two patients (5%) had cervical lymph node metastasis and 21 patients (48%) underwent postoperative radiotherapy. With a mean follow-up of 65 months for all patients, 10 (23%) had tumor recurrence (9 local, 1 distant). After salvage surgery, four patients lived without disease, and the larynx was preserved in two. The 5-year local control and overall and disease-specific survival rates were 78%, 75%, and 84%, respectively. The overall laryngeal preservation rate was 82% (36/44). Most patients had satisfactory QOL. CONCLUSIONS: In selected T3 glottic SCC cases, CO2 TOLMS can achieve favorable oncologic results and a satisfactory QOL.


Asunto(s)
Neoplasias de Cabeza y Cuello , Neoplasias Laríngeas , Terapia por Láser , Láseres de Gas , Glotis/patología , Glotis/cirugía , Humanos , Neoplasias Laríngeas/patología , Neoplasias Laríngeas/cirugía , Láseres de Gas/uso terapéutico , Masculino , Microcirugia , Persona de Mediana Edad , Estadificación de Neoplasias , Calidad de Vida , Estudios Retrospectivos , Resultado del Tratamiento
19.
Neurosurg Rev ; 44(4): 2309-2318, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33098480

RESUMEN

The posteroinferior region of the thalamus is formed by the pulvinar, and it is surgically accessed through the infratentorial supracerebellar approach, between the midline and the retromastoid region. This study aimed to compare the paramedian, lateral, extreme lateral, and contralateral paramedian corridors with the posteroinferior thalamus through a suboccipital craniotomy and an infratentorial supracerebellar access. Ten cadavers were studied, and the microsurgical dissections were accompanied by the measurement of the variables using a neuronavigation system. Statistical analysis was performed using analysis of variance (ANOVA). The distance between the access midpoint at the cranial surface and pulvinar varied between 53.3 and 53.9 mm, the contralateral access being an exception (59.9 mm). The vertical angle ranged from 20.6° in the contralateral access to 23.5° in the lateral access. There was a gradual increase in the horizontal angle between the paramedian (17.4°), lateral (31.3°), and extreme lateral (43.7°) accesses. But, this angle in the contralateral access was 14.6°, similar to that of the paramedian access. The exposed area of the thalamus was 125.1 mm2 in the paramedian access, 141.8 mm2 in the lateral access, and 165.9 mm2 in the extreme lateral access, which was similar to that of the contralateral access (164.9 mm2). The horizontal view angle increased with lateralization of the access, which facilitated microscopic visualization. With regard to the exposure of the microsurgical anatomy, the extreme lateral and contralateral accesses circumvent the neural and vascular obstacles at the midline, allowing a larger area of anatomical exposure.


Asunto(s)
Microcirugia , Procedimientos Neuroquirúrgicos , Tálamo , Craneotomía , Humanos , Neuronavegación , Tálamo/cirugía
20.
Rev. Ateneo Argent. Odontol ; 63(2): 39-54, nov. 2020. ilus
Artículo en Español | LILACS | ID: biblio-1150748

RESUMEN

La búsqueda por encontrar métodos para acortar la duración de los tratamientos de ortodoncia tiene un pasado reciente, un presente y un futuro. Las fuerzas ortodóncicas que se ejercen sobre la membrana periodontal producen movimientos dentarios por modificaciones histológicas y biomoleculares. El conocimiento de los procesos biológicos da lugar a implementar cambios para favorecer la aceleración de los procesos resortivos y neoformativos. El objetivo de esta publicación es hacer una breve síntesis de lo acontecido con este tema y exponer el procedimiento de las micro-osteoperforaciones (MOPs) como una opción complementaria al tratamiento de ortodoncia convencional. Aún no existe suficiente apoyo de ensayos clínicos en humanos para aseverar su éxito. Más aún, distintos autores publican conclusiones contradictorias. Es de esperar que, en breve, nuevas investigaciones contribuyan a respaldarlo o desestimarlo (AU)


The quest to find methods to shorten the duration of orthodontic treatments has a recent past, a present, and a future. Orthodontic forces exerted on the periodontal membrane produce tooth movements by histological and biomolecular modifications. Knowledge of biological processes results in changes to promote the acceleration of spring and neoformative processes. The objective of this publication is to make a brief synthesis of what happened with this topic and expose the micro-osteoperforations (MOPs) procedure as a complementary option to conventional orthodontic treatment. There is not yet enough support from human clinical trials to assert its success. Moreover, different authors publish conflicting conclusions. It is to be expected that, shortly, further investigations will help to support or dismiss it (AU)


Asunto(s)
Humanos , Técnicas de Movimiento Dental/métodos , Fenómenos Biológicos , Procedimientos Quirúrgicos Orales , Microcirugia , Osteotomía/métodos , Resorción Ósea/fisiopatología , Terapia por Luz de Baja Intensidad , Ligando RANK , Duración de la Terapia
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