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1.
Front Oncol ; 14: 1371122, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38699633

RESUMEN

Breast-conserving surgery (BCS) is a well-established standard treatment option alternative to mastectomy for patients with early breast cancer that consists of a lumpectomy followed by adjuvant radiotherapy. However, irradiated tissues are at an increased risk of wound healing complications when post-treatment surgical management is required. The management of an irradiated wound dehiscence can be challenging, as it often requires a multimodal treatment approach that includes more invasive interventions when compared to a traditional surgical wound dehiscence. We present a 64 year old female patient with a remote history of right BCS with radiation therapy for early breast cancer 12 years ago, who recently required a simple mastectomy due to ipsilateral breast cancer recurrence. The post-operative course was complicated by dehiscence of the mastectomy wound. After standard wound care therapies failed, her surgical wound successfully healed after treatment with a synthetic electrospun fiber matrix application. Patients with additional comorbidities often do not qualify for invasive reconstructive options; therefore, effective local management options are warranted. This is the first reported case documenting synthetic electrospun fiber matrix efficacy and safety in healing a dehisced surgical wound within a previously irradiated fibrotic area, without the need for further invasive surgical intervention. Larger scale research, such as a prospective cohort study or randomized control trial, is needed to investigate its novel use in irradiated wounds.

2.
Am J Surg ; 225(3): 527-531, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36509588

RESUMEN

BACKGROUND: This study compared post-operative reconstructive complications and oncologic treatment between patients who underwent unilateral versus bilateral nipple sparing mastectomy (NSM) with implant based reconstruction (IBR). METHODS: Patients diagnosed with unilateral breast cancer who underwent NSM with IBR between 2010 and 2019 were reviewed. Patient demographics, surgical details, adjuvant therapy and postoperative complications were analyzed. RESULTS: A total of 434 NSM with IBR were performed in 269 patients, 24% unilateral, and 76% bilateral. The bilateral group received a direct implant significantly more frequently and were younger compared to unilateral (p < 0.001). The unilateral group received post-mastectomy radiation therapy at significantly higher rate (p < 0.001) with no difference in receipt of adjuvant chemotherapy. Overall, 11% of mastectomies developed a 30-day complication requiring reoperation and that extended to 13% at 120 days. There was no difference regarding the incidence of complications requiring reoperation (p = 0.84) or complications type between the two groups (p = 0.29). CONCLUSION: These findings support the oncologic and reconstructive equivalence to support patient choice in CPM.


Asunto(s)
Neoplasias de la Mama , Mamoplastia , Mastectomía Subcutánea , Mastectomía Profiláctica , Humanos , Femenino , Mastectomía/efectos adversos , Neoplasias de la Mama/etiología , Pezones/cirugía , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/prevención & control , Complicaciones Posoperatorias/etiología , Estudios Retrospectivos
3.
Br J Surg ; 109(12): 1293-1299, 2022 11 22.
Artículo en Inglés | MEDLINE | ID: mdl-36066266

RESUMEN

BACKGROUND: De-escalation of axillary surgery in breast cancer has progressively taken place when appropriate. Data supporting surgical de-escalation in patients with clinically node-positive (cN+) disease remains scarce. Here, survival among patients with cN+ T1-2 tumours undergoing sentinel lymph node biopsy (SLNB) and regional nodal irradiation (RNI) was investigated and compared with that among patients undergoing axillary lymph node dissection (ALND) with or without RNI. METHODS: The National Cancer Data Base was used to identify three groups of patients with cN+ tumours according to axillary management among those treated between 2010 and 2016: patients who underwent SLNB and RNI (cN+ SLNB/RNI group); those who had ALND and RNI (cN+ ALND/RNI group); and those who had ALND alone (cN+ ALND/no RNI group). Patients who underwent neoadjuvant chemotherapy, and those who had stage IV breast cancer or pN2-3 disease were excluded. RESULTS: A total of 12 560 patients met the inclusion criteria: 3030 in the cN+ SLNB/RNI, 5446 in the cN+ ALND/RNI, and 4084 in the cN+ ALND/no RNI group. The sizes of cN + SLNB/RNI and cN+ ALND/RNI groups increased over the study interval, whereas the cN+ ALND/no RNI group decreased in size (P < 0.001). There was a median of one positive node in the cN+ SLNB/RNI group and two nodes in the cN+ ALND/RNI and cN+ ALND/no RNI groups. The median number of nodes examined was three, 14, and 14, respectively (P < 0.001). Median follow-up was 57.9 (range 0.8-114) months. The overall survival rate was 97, 97, and 92 per cent respectively at two years, and 88, 86, and 78 per cent at five years (P < 0.001). CONCLUSION: Patients with limited cN+ T1-2 breast cancer undergoing upfront SLNB and RNI have favourable survival outcomes that are not inferior to those of patients undergoing ALND with or without RNI. Prospective studies are warranted to assess locoregional control and long-term outcomes.


The surgical management of lymph node metastases in patients with breast cancer continues to change. To minimize the complications of extensive removal of axillary lymph nodes (axillary dissection), more limited surgery is now the standard of care when the cancer has not spread to the axillary lymph nodes. This study examined data from a large national cancer database in the USA. The results showed that patients with minimal lymph node metastases can also undergo less extensive axillary surgery without affecting survival, if surgery is combined with radiation therapy.


Asunto(s)
Neoplasias de la Mama , Humanos , Femenino , Neoplasias de la Mama/patología , Escisión del Ganglio Linfático , Biopsia del Ganglio Linfático Centinela , Axila/patología , Ganglios Linfáticos/cirugía , Ganglios Linfáticos/patología
5.
Ann Surg Oncol ; 28(10): 5486-5494, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34297235

RESUMEN

BACKGROUND: Infection after nipple-sparing mastectomy (NSM) and implant-based reconstruction (IBR) can be a devastating complication. The retained nipple may act as a portal or nidus for different ductal organisms, and as such, the bacteriology of surgical-site infections (SSIs) in this setting may not be adequately covered by current antibiotic recommendations. This study sought to evaluate SSI and reconstruction outcomes in relation to antibiotic choice and identify the different microbial species implicated. METHODS: A prospective database was reviewed for patients who underwent NSM with IBR from 2010 to 2019. Patient characteristics, operative details, antibiotic regimens, and subsequent treatment details were evaluated. The study analyzed SSI incidence, timing, and type of causative organisms. RESULTS: The study analyzed 571 NSMs with IBR performed for 347 patients (55% with direct implants and 45% with tissue expanders). The preoperative antibiotics consisted of cephalosporin alone for 65% of the patients, a more broad single-antibiotic use for 12% of the patients, and dual-coverage antibiotics for 20% of the patients. During a median follow-up of 1.7 years, SSI developed in 12% of the reconstructions, with 6% requiring prosthesis removal. The most common SSI organism cultured was Staphylococcal species. Neither pre- nor postoperative antibiotic choice was associated with incidence of infection, type of bacteria, or need for prosthetic explanation. CONCLUSION: For patients undergoing NSM with IBR, a more aggressive antibiotic choice is not associated with an improved SSI rate. Patient and treatment factors continue to carry the highest risk for SSI.


Asunto(s)
Neoplasias de la Mama , Mamoplastia , Antibacterianos/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/cirugía , Femenino , Humanos , Mastectomía , Pezones/cirugía , Estudios Retrospectivos
6.
Ann Surg Oncol ; 28(10): 5723-5729, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34324111

RESUMEN

BACKGROUND: Invasive lobular carcinoma (ILC) is thought be a unique entity with higher rates of multifocal/multicentric and bilateral disease. This study aimed to evaluate the true extent of the disease, risk of bilaterality, lymph node involvement, and impact of preoperative imaging to help guide surgical decision making. METHODS: A retrospective analysis identified patients treated for ILC between 2004 and 2017. Clinical staging and pathologic results were compared. Follow-up details including local recurrence, contralateral breast cancer (CBC), and survival outcomes were evaluated. RESULTS: The study identified 692 patients with ILC, including 43 patients (6%) with a diagnosis of CBC and 232 patients (33%) with a diagnosis of multifocal/multicentric disease at presentation. Preoperative magnetic resonance imaging (MRI) led to an identification of additional disease in 20% of the patients. Preoperative MRI resulted in a more accurate prediction of tumor size staging but did not improve the discordance between clinical and pathologic nodal staging. Overall, the rate of imaging occult lymph node disease was 24%. At the 6-year follow-up evaluation, a local recurrence had developed in 2.3%, a CBC in 2.3, and a distant metastasis in 9.4% of the patients. The overall survival rate was 96% at 3 years and 91% at 5 years. CONCLUSIONS: Invasive lobular carcinoma is a distinct subset of cancer that poses a diagnostic staging challenge. The results of this study favor MRI for accurate tumor staging and for improving detection of multicentricity and bilaterality. However, clinicians should be aware of the higher likelihood of occult lymph node involvement with ILC and subsequent early metastasis.


Asunto(s)
Neoplasias de la Mama , Carcinoma Ductal de Mama , Carcinoma Lobular , Neoplasias de la Mama/diagnóstico por imagen , Neoplasias de la Mama/patología , Neoplasias de la Mama/cirugía , Carcinoma Ductal de Mama/diagnóstico por imagen , Carcinoma Ductal de Mama/patología , Carcinoma Ductal de Mama/cirugía , Carcinoma Lobular/diagnóstico por imagen , Carcinoma Lobular/patología , Carcinoma Lobular/cirugía , Toma de Decisiones , Femenino , Humanos , Recurrencia Local de Neoplasia/cirugía , Estadificación de Neoplasias , Estudios Retrospectivos
8.
Surgery ; 166(6): 1176-1180, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31400951

RESUMEN

BACKGROUND: The presentation of idiopathic granulomatous mastitis can mimic breast cancer. Therefore, awareness of the condition is important for surgeons. The current series is the largest in a US population. METHODS: Retrospective chart review of patients treated at a county, safety-net hospital in Arizona. Cases were identified from January 2006 to January 2019. Sociodemographic information, clinical history, management, and outcomes were collected. RESULTS: There were 145 occurrences of idiopathic granulomatous mastitis among 120 women. Most of the patients (92%) were of Hispanic ethnicity and born outside (87%) of the United States. The average age was 35 years. Nearly all patients (95%) were parous, with an average of 3 pregnancies. Most (88%) presented with a palpable mass, and more than half (54%) of these masses were painful. Six patients had prolactinomas or hyperprolactinemia, 11 patients were pregnant, and 5 were postpartum. Early in the time period studied, 6 patients underwent excision of the masses. The remaining 114 underwent planned observation after biopsy confirmation of the diagnosis. Two patients were lost to follow-up, and the other 112 patients with idiopathic granulomatous mastitis resolved spontaneously. Nineteen had more than 1 episode. Average time to resolution was 5 months (range 0-20). Adjusted log-normal regression analysis found that later age of first live birth was associated with greater time to resolution (P < .01). CONCLUSION: Idiopathic granulomatous mastitis is a self-limited, benign condition that waxes and wanes and eventually resolves without resection. After diagnosis, medications are unnecessary, and operations can be limited to drainage procedures for fluid collections.


Asunto(s)
Mastitis Granulomatosa/terapia , Espera Vigilante , Adulto , Biopsia con Aguja , Neoplasias de la Mama/diagnóstico , Diagnóstico Diferencial , Drenaje , Femenino , Estudios de Seguimiento , Mastitis Granulomatosa/diagnóstico , Mastitis Granulomatosa/patología , Mastitis Granulomatosa/cirugía , Humanos , Persona de Mediana Edad , Educación del Paciente como Asunto , Recurrencia , Remisión Espontánea , Estudios Retrospectivos , Ultrasonografía , Adulto Joven
9.
Eur Arch Otorhinolaryngol ; 273(7): 1895-903, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-26138390

RESUMEN

Dysplasia and squamous cell carcinoma of the upper aerodigestive tract show significant neoangiogenesis appearing as subepithelial and epithelial microvascular irregularities that can be detected by Image-Enhanced Endoscopy such as Narrow Band Imaging and Storz Professional Image Enhancement System. In the present study, the most advanced endoscopic enhancement systems were coupled with Contact Endoscopy (Enhanced Contact Endoscopy). This original method improved the identification and the understanding of the neoangiogenetic changes of the chorion in 42 patients with leukoplakia, erythroplakia, and leuko-erythroplakia of the oral cavity and oropharynx. The physiologic and pathologic mucosa was described in five obvious vascular patterns observed at Enhanced Contact Endoscopy ranging from normal to squamous cell carcinoma, passing through inflammation, hyperplasia, and dysplasia. Each vascular pattern was then compared to histology, showing that the microvascular architectural changes seen with Enhanced Contact Endoscopy are almost constant. Sensitivity, specificity, positive predictive value, and negative predictive value in the differentiation between healthy mucosa and inflammation versus pathologic hyperplasia, dysplasia, and carcinoma were, respectively, 96.6, 93.3, 98.2, 87.5, and 95.9 %. Sensitivity and specificity were 100 % in differentiation between non-malignant lesions versus squamous cell carcinoma. Our preliminary experience shows that accuracy of Image-Enhanced Endoscopy in the diagnosis of precancerous lesions and squamous cell carcinoma of the oral cavity and oropharynx can be increased if associated to Contact Endoscopy.


Asunto(s)
Endoscopía/métodos , Imagen de Banda Estrecha/métodos , Neovascularización Patológica/diagnóstico , Neoplasias Orofaríngeas/diagnóstico , Orofaringe/patología , Lesiones Precancerosas/diagnóstico , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Escamosas/patología , Femenino , Humanos , Hiperplasia/patología , Aumento de la Imagen/métodos , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados
10.
Aviat Space Environ Med ; 85(7): 700-7, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25022157

RESUMEN

INTRODUCTION: Visual performance impairment after hypoxia is well recognized in military and civilian aviation. The aims of this study were: 1) to assess oculometric features such as blink metrics, pupillary dynamics, fixations, and saccades as cognitive indicators of early signs of hypoxia; and 2) to analyze the impact of different hypoxic conditions ["hypoxic hypoxia" (HH) and "isocapnic hypoxia" (IH)] on specified oculometrics during mental workloads. METHODS: Oculometric data were collected on 25 subjects under 3 conditions: normoxia, HH (8% O2 + balance N2), and IH (7% O2 + 5% CO2 + balance N2). The mental workload task consisted of reading aloud linear arrays of numbers after exposure to gas mixtures. RESULTS: Blink rates were significantly increased under hypoxic conditions (by +100.7% in HH and by +92.8% in IH compared to normoxia). A faster recovery of blink rate was observed in transitioning from IH (23.6% vs. 76.3%) to normoxia. The percentage change in pupil size fluctuation was increased under HH more than under IH (29% vs. 4.4%). Under HH average fixation time and target area size were significantly higher than under IH. Total saccadic times under hypoxic conditions were significantly increased compared with normoxia. CONCLUSIONS: These results suggest that oculometric changes are indicators of hypoxia, which can be monitored using compact, portable, noninvasive eye-tracking devices in a cockpit analogous environment to detect hypoxia-induced physiological changes in aircrew. Comparative results between HH and IH support the potential role of carbon dioxide in augmenting cerebral perfusion and hence improved tissue oxygen delivery.


Asunto(s)
Parpadeo/fisiología , Fijación Ocular/fisiología , Hipoxia/fisiopatología , Pupila/fisiología , Movimientos Sacádicos/fisiología , Adulto , Análisis de Varianza , Cognición/fisiología , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Proyectos Piloto
11.
Aviat Space Environ Med ; 85(1): 15-24, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24479254

RESUMEN

INTRODUCTION: Simulator sickness causes vestibulo-autonomic responses that increase sympathetic activity and decrease parasympathetic activity. The purpose of the study was to quantify these responses through electrogastrography and cardiac interbeat intervals during flight simulation. METHODS: There were 29 subjects that were randomly assigned to 2 parallel arms: (1) oculovestibular recoupling, where galvanic vestibular stimulation was synchronous with the visual field; and (2) control. Electrogastrography and interbeat interval data were collected during baseline, simulation, and post-simulation periods. A simulator sickness questionnaire was administered. RESULTS: Statistically significant differences were observed in percentage of recording time with the dominant frequency of electrogastrography in normogastric and bradygastric domains between the oculovestibular recoupling and control groups. Normogastria was dominant during simulation in the oculovestibular recoupling group. In the control group, the percentage of recording time with the dominant frequency decreased by 22% in normogastria and increased by 20% in bradygastria. The percentage change of the dominant power instability coefficient from baseline to simulation was 26% in the oculovestibular recoupling group vs. 108% in the control group. The power of high-frequency components for interbeat intervals did not change significantly in the oculovestibular recoupling group and was decreased during simulation in the control group. DISCUSSION: Electrogastrography and interbeat intervals are sensitive indices of autonomic changes in subjects undergoing flight simulation. These data demonstrate the potential of oculovestibular recoupling to stabilize gastric activity and cardiac autonomic changes altered during simulator and motion sickness.


Asunto(s)
Sistema Nervioso Autónomo/fisiopatología , Electrocardiografía , Mareo por Movimiento/fisiopatología , Reflejo Vestibuloocular/fisiología , Adolescente , Adulto , Medicina Aeroespacial , Estimulación Eléctrica , Femenino , Humanos , Masculino , Estómago/inervación , Encuestas y Cuestionarios
12.
Aviat Space Environ Med ; 84(10): 1017-22, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24261052

RESUMEN

INTRODUCTION: Hypoxic incapacitation continues to be a significant threat to safety and operations at high altitude. Noninvasive neurocognitive performance testing is desirable to identify presymptomatic cognitive impairment, affording operators at altitude a tool to quantify their performance and safety. METHODS: There were 25 subjects enrolled in this study. Cognitive performance was assessed by using the King-Devick (K-D) test. The performance of the subjects on the K-D test was measured in normoxia followed by hypoxia (8% 02 equivalent to 7101 m) and then again in normoxia. RESULTS: K-D test completion time in hypoxia for 3 min was significantly longer than the Baseline Test (54.5 +/- 12.4 s hypoxic vs. 46.3 +/- 10.4 s baseline). Upon returning to normoxia the completion time was significantly shorter than in hypoxia (47.6 +/- 10.6 s post test vs. 54.5 +/- 12.4 s hypoxic). There was no statistically significant difference between baseline test and post test times, indicating that all subjects returned to their normoxic baseline levels. SpO2 decreased from 98 +/- 0.9% to 80 +/- 7.8% after 3 min on hypoxic gas. During the hypoxic K-D test, SpO2 decreased further to 75.8 +/- 8.3%. CONCLUSIONS: In this study the K-D test has been shown to be an effective neurocognitive test to detect hypoxic impairment at early presymptomatic stages. The K-D test may also be used to afford a reassessment of traditional measures used to determine hypoxic reserve time.


Asunto(s)
Trastornos del Conocimiento/etiología , Hipoxia Encefálica/complicaciones , Adolescente , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Adulto Joven
13.
Aviat Space Environ Med ; 83(6): 549-55, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22764608

RESUMEN

INTRODUCTION: Despite improvement in the computational capabilities of visual displays in flight simulators, intersensory visual-vestibular conflict remains the leading cause of simulator sickness (SS). By using galvanic vestibular stimulation (GVS), the vestibular system can be synchronized with a moving visual field in order to lessen the mismatch of sensory inputs thought to result in SS. METHODS: A multisite electrode array was used to deliver combinations of GVS in 21 normal subjects. Optimal electrode combinations were identified and used to establish GVS dose-response predictions for the perception of roll, pitch, and yaw. Based on these data, an algorithm was then implemented in flight simulator hardware in order to synchronize visual and GVS-induced vestibular sensations (oculo-vestibular-recoupled or OVR simulation). Subjects were then randomly exposed to flight simulation either with or without OVR simulation. A self-report SS checklist was administered to all subjects after each session. An overall SS score was calculated for each category of symptoms for both groups. RESULTS: The analysis of GVS stimulation data yielded six unique combinations of electrode positions inducing motion perceptions in the three rotational axes. This provided the algorithm used for OVR simulation. The overall SS scores for gastrointestinal, central, and peripheral categories were 17%, 22.4%, and 20% for the Control group and 6.3%, 20%, and 8% for the OVR group, respectively. CONCLUSIONS: When virtual head signals produced by GVS are synchronized to the speed and direction of a moving visual field, manifestations of induced SS in a cockpit flight simulator are significantly reduced.


Asunto(s)
Medicina Aeroespacial , Terapia por Estimulación Eléctrica , Mareo por Movimiento/prevención & control , Interfaz Usuario-Computador , Vestíbulo del Laberinto , Adulto , Femenino , Humanos , Masculino , Orientación , Reflejo Vestibuloocular
14.
J Vestib Res ; 22(1): 17-25, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22699149

RESUMEN

Galvanic stimulation has long been used as a nonmechanical means of activating the vestibular apparatus through direct action on the vestibular nerve endings. This stimulation has been reported to be safe, but no studies have examined the potential changes in the corresponding cochlear receptors. The aim of the present study was to evaluate the effect of galvanic vestibular stimulation (GVS) on distortion product otoacoustic emissions (DPOAEs). Fourteen subjects underwent DPOAEs during several conditions of GVS. The DPOAEs ranged from ∼ 1 kHz to ∼ 8 kHz at 65/55 dB for f1/f2 and with an f2/f1 ratio of 1.2. The subjects were evaluated at 10 stimulation conditions that ranged from -2.0 mA to +2.0 mA for each frequency. Statistical analysis showed no significant differences in DPOAE amplitudes for all conditions with and without GVS. Results also showed no significant differences between DPOAE amplitudes before and after GVS. Multivariate analysis found subject variability in DPOAE amplitude, which was not thought to be GVS related. Results indicated that GVS produced neither temporary nor permanent changes in DPOAEs.


Asunto(s)
Estimulación Acústica , Emisiones Otoacústicas Espontáneas/fisiología , Vestíbulo del Laberinto/fisiología , Estimulación Acústica/métodos , Adulto , Fenómenos Biomecánicos/fisiología , Cóclea/fisiología , Fenómenos Electrofisiológicos/fisiología , Femenino , Respuesta Galvánica de la Piel/fisiología , Humanos , Masculino , Análisis Multivariante , Adulto Joven
15.
Eur Arch Otorhinolaryngol ; 267(11): 1735-42, 2010 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-20499077

RESUMEN

Eighty patients affected by supraglottic cancer were treated by transoral carbon dioxide laser surgery between 1989 and 2006 in two Italian institutions. Patient staging was as follows: 2 pTis, 20 pT1, 38 pT2, and 20 pT3. Simultaneous or 1-month delayed neck dissection (ND) was performed on 27 (34%) patients, unilaterally in 10 and bilaterally in 17. The pN category was as follows: 9 pN0, 6 pN1, 8 pN2b, and 4 pN2c. A total of 16 (20%) patients received complementary radiotherapy (RT) and 5 (6%) were subjected to chemo-RT for persistent tumor after re-excision due to positive margins, multiple lymph nodes, and/or extracapsular spread after ND. The last follow-up was in December 2008. The 5-year overall, disease-specific and disease-free survivals, local control with laser alone, and organ preservation rates calculated by Kaplan-Meier analysis were 84.4, 97.4, 88.3, 96, and 97.2%, respectively. Univariate analysis showed a statistically significant impact on disease-free survival, local control with laser alone, and organ preservation of pT category (p = 0.009, p = 0.01, and p = 0.03, respectively), while pN category and tumor stage negatively influenced disease-free survival (p = 0.007 and p = 0.01, respectively). This series confirms the good overall oncologic outcomes obtained by transoral laser surgery for Tis, T1, T2, and selected T3 supraglottic cancer with minimal pre-epiglottic space involvement.


Asunto(s)
Carcinoma de Células Escamosas/cirugía , Neoplasias Laríngeas/cirugía , Terapia por Láser/métodos , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Escamosas/patología , Terapia Combinada , Femenino , Humanos , Neoplasias Laríngeas/patología , Terapia por Láser/instrumentación , Láseres de Gas , Metástasis Linfática , Masculino , Microcirugia/instrumentación , Persona de Mediana Edad , Invasividad Neoplásica , Estadificación de Neoplasias , Pronóstico , Tasa de Supervivencia , Resultado del Tratamiento
16.
Eur Arch Otorhinolaryngol ; 267(9): 1423-8, 2010 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-20352239

RESUMEN

Narrow-band imaging (NBI) is an endoscopic technique enhancing mucosal vasculature and better identifying superficial carcinomas due to their neo-angiogenic pattern. NBI accuracy is increased by combination with a high-definition television (HDTV) camera. The aim of this report was to evaluate the diagnostic improvement of NBI +/- HDTV in the evaluation of head and neck squamous cell cancer (HNSCC) previously treated by chemo-radiotherapy (CHT-RT) or RT. A total of 390 patients affected by HNSCC were prospectively evaluated by NBI and white light (WL) endoscopy +/- HDTV between April 2007 and April 2009 at a single academic institution. Among them, we focused on 59 (15%) patients who received CHT-RT or RT as part of their treatment. Of 59 patients, 13 (22%) showed adjunctive preoperative NBI findings when compared to the standard WL examination. These findings were always confirmed by intraoperative HDTV NBI, while only eight (62%) were visible with HDTV WL. Of 13 lesions, 12 received histopathologic confirmation (from carcinoma in situ to invasive carcinoma). The sensitivity of flexible NBI, HDTV WL, and HDTV NBI was 100, 66 and 100%, respectively. The specificity was 98, 100, and 98%. The positive predictive value was 92, 100, and 92%. The negative predictive value was 100, 94, and 100%. The accuracy was 98, 91, and 98%. NBI +/- HDTV after CHT-RT or RT was of value in detecting tumor persistence (n = 2), early recurrences (n = 6), and metachronous tumors (n = 4). By contrast, only 1 of 59 (2%) patients was found to be false positive.


Asunto(s)
Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/tratamiento farmacológico , Carcinoma de Células Escamosas/radioterapia , Aumento de la Imagen/instrumentación , Procesamiento de Imagen Asistido por Computador/instrumentación , Laringoscopía , Recurrencia Local de Neoplasia/diagnóstico , Neoplasia Residual/diagnóstico , Neoplasias Primarias Secundarias/diagnóstico , Neoplasias de Oído, Nariz y Garganta/diagnóstico , Neoplasias de Oído, Nariz y Garganta/tratamiento farmacológico , Neoplasias de Oído, Nariz y Garganta/radioterapia , Televisión , Anciano , Biopsia , Carcinoma de Células Escamosas/irrigación sanguínea , Carcinoma de Células Escamosas/patología , Terapia Combinada , Diagnóstico Precoz , Diseño de Equipo , Femenino , Estudios de Seguimiento , Humanos , Masculino , Microvasos/patología , Persona de Mediana Edad , Invasividad Neoplásica/patología , Recurrencia Local de Neoplasia/cirugía , Estadificación de Neoplasias , Neoplasia Residual/cirugía , Neoplasias Primarias Secundarias/cirugía , Neoplasias de Oído, Nariz y Garganta/irrigación sanguínea , Neoplasias de Oído, Nariz y Garganta/patología , Estudios Prospectivos , Sensibilidad y Especificidad
17.
Head Neck ; 32(8): 977-83, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-19902535

RESUMEN

BACKGROUND: Transoral CO(2) laser surgery has been accepted as a valuable therapeutic option for glottic cancer. METHODS: This was a retrospective analysis of 595 patients. Five-year overall and disease-specific survivals, local control with laser, locoregional, regional control, and organ preservation rates were calculated. The impact of different variables was calculated by univariate analysis. RESULTS: Overall, disease-specific and disease-free survivals, local control with laser, locoregional, regional control, and organ preservation rates were 87.5%, 99%, 81.3%, 92.7%, 98.9%, 98.2%, and 97.1%, respectively. Univariate analysis showed a significant impact of pT category on local control with laser, organ preservation, locoregional and regional control, of endoscopic re-treatment for positive deep surgical margins on local control with laser and organ preservation, and recurrence after endoscopic re-treatment on local control with laser and organ preservation. CONCLUSION: This series confirms the good oncologic outcomes of endoscopic laser surgery for T(is), T(1), and selected T(2) and T(3) glottic tumors.


Asunto(s)
Carcinoma de Células Escamosas/cirugía , Endoscopía , Glotis , Neoplasias Laríngeas/cirugía , Laringectomía , Láseres de Gas/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Escamosas/mortalidad , Carcinoma de Células Escamosas/patología , Estudios de Cohortes , Supervivencia sin Enfermedad , Femenino , Humanos , Italia , Neoplasias Laríngeas/mortalidad , Neoplasias Laríngeas/patología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Estudios Retrospectivos , Tasa de Supervivencia , Resultado del Tratamiento
18.
Eur Arch Otorhinolaryngol ; 267(3): 409-14, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-19826829

RESUMEN

Narrow band imaging (NBI) is an optical technique in which a filtered light reveals superficial carcinomas in view of their neoangiogenic pattern. The accuracy of NBI is implemented by combining it with a high definition television (HDTV) camera. The aim of this study was to prospectively evaluate the diagnostic gain of NBI and HDTV in the assessment of laryngeal squamous cell carcinoma (LSCC). Between April 2007 and December 2008, we analyzed by NBI with or without HDTV 279 patients divided in two groups: Group A included 96 patients affected by LSCC and Group B included 183 subjects under follow-up after treatment for the same disease. Overall, 50 of 279 patients (18%) showed "suspicious" NBI findings histologically confirmed as neoplastic. The sensitivity, specificity, accuracy, positive and negative predictive rates of flexible NBI, HDTV with white light, and HDTV with NBI in both groups confirmed the value of these two technologies. In the pre- and intraoperative settings, NBI with or without HDTV provided better definition of tumor staging and surgical margins. NBI has also a role in the postoperative setting, due to its ability in early detection of persistences, recurrences, and metachronous tumors.


Asunto(s)
Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/patología , Aumento de la Imagen , Neoplasias Laríngeas/diagnóstico , Neoplasias Laríngeas/patología , Laringoscopía , Neovascularización Patológica/diagnóstico , Televisión , Grabación en Video/instrumentación , Anciano , Capilares/patología , Carcinoma de Células Escamosas/irrigación sanguínea , Carcinoma de Células Escamosas/cirugía , Femenino , Estudios de Seguimiento , Humanos , Neoplasias Laríngeas/irrigación sanguínea , Neoplasias Laríngeas/cirugía , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neovascularización Patológica/patología , Neovascularización Patológica/cirugía , Estudios Prospectivos , Sensibilidad y Especificidad , Pliegues Vocales/irrigación sanguínea , Pliegues Vocales/patología
19.
Head Neck ; 32(6): 786-92, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-19890908

RESUMEN

BACKGROUND: The objective of this study was to assess angiogenesis and lymphangiogenesis patterns in advanced oral/oropharyngeal cancer by immunohistochemical techniques. METHODS: Forty-five patients with advanced oral/oropharyngeal cancer, treated by primary surgery between January 1996 and December 2005, were selected. All cases were followed for at least 24 months. Angiogenesis and lymphangiogenesis were evaluated with antibodies against CD31 and podoplanin, respectively. Survival outcomes were calculated by the Kaplan-Meier method, whereas univariate comparisons were obtained by log-rank, chi-square, and Mann-Whitney tests. RESULTS: Survival correlated with the area of peritumoral blood vessels (p = .02), whereas the number of intratumoral lymphatics (p = .02) correlated with the occurrence of nodal metastasis. The risk for distant metastasis correlated with the perimeter of intratumoral lymphatics (p = .02). CONCLUSIONS: Peritumoral angiogenesis presented different expression patterns between survivors and patients who died of disease. Intratumoral lymphangiogenesis was correlated with a higher risk of developing lymph node (LN) and distant metastasis.


Asunto(s)
Linfangiogénesis/fisiología , Glicoproteínas de Membrana/metabolismo , Neoplasias de la Boca/metabolismo , Neovascularización Patológica/fisiopatología , Neoplasias Orofaríngeas/metabolismo , Molécula-1 de Adhesión Celular Endotelial de Plaqueta/metabolismo , Adulto , Anciano , Femenino , Humanos , Inmunohistoquímica , Masculino , Persona de Mediana Edad , Neoplasias de la Boca/mortalidad , Neoplasias de la Boca/patología , Neoplasias Orofaríngeas/mortalidad , Neoplasias Orofaríngeas/patología , Pronóstico
20.
Eur Arch Otorhinolaryngol ; 264(10): 1179-84, 2007 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-17534640

RESUMEN

Treatment of glottic cancer by CO(2) laser endoscopic cordectomies can be associated with poor vocal outcome when the excision is extended beyond the superficial part of the thyro-arytenoid muscle. Different phonosugical techniques have been described in order to improve postoperative vocal outcome in patients undergoing this type of surgery. We herein present a new device for augmentation of residual vocal cord by video-endoscopic assisted primary intracordal autologous fat injection (PIAFI) performed at the end of transmuscular cordectomy. Twenty-four patients underwent transmuscular cordectomy and PIAFI for Tis and T1a glottic cancer. Eight cc of abdominal fat were obtained during the endoscopic procedure and processed. Infusion of intact parcels of fat tissue was performed to maximally reduce its resorption. PIAFI was performed in the residual vocal cord obtaining its immediate medialization, using a new device that permitted modulated (0.5 cc per click) injection. Fourteen patients were submitted to postoperative voice evaluation including subjective, perceptual, and objective assessment. The results were compared with those of 24 patients treated by transmuscular (Type III) cordectomy without subsequent PIAFI. No complications were observed as a result of PIAFI and the procedure did not significantly prolong overall surgical time. All patients were discharged the day after surgery. Comparison of vocal outcomes according to the Mann-Whitney and Wilcoxon tests showed a positive trend for patients submitted to PIAFI in terms of subjective and objective analysis. By contrast, a statistically significant improvement was reached in terms of perceptual analysis when comparing patients treated by Type III cordectomy alone with those submitted to this kind of procedure followed by PIAFI.


Asunto(s)
Tejido Adiposo/trasplante , Endoscopía/métodos , Procedimientos Quirúrgicos Otorrinolaringológicos/métodos , Cirugía Asistida por Video/instrumentación , Pliegues Vocales/cirugía , Adulto , Femenino , Humanos , Inyecciones Intramusculares , Masculino , Microcirugia/instrumentación , Persona de Mediana Edad
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