Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 33
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Dysphagia ; 38(1): 211-219, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-35507038

RESUMEN

This study evaluated the safety of laryngeal closure and post-surgical changes in swallowing function of patients with amyotrophic lateral sclerosis (ALS) and proposed an appropriate surgical strategy for patients with ALS. Clinical and surgical data of 26 consecutive patients with ALS who underwent laryngeal closure at Nagoya University Hospital in Japan between 2003 and 2020 were retrospectively analyzed. Changes in swallowing functions were evaluated before and approximately 1 month post-surgery using Neuromuscular Disease Swallowing Status Scale (NdSSS), and Functional Oral Intake Scale (FOIS). The median operation time was 126 min (range, 51-163 min), and the median intraoperative blood loss was 20 mL (range, 0-88 mL). Among the 26 ALS patients who underwent laryngeal closure, grade 1 (mild) complications occurred in three patients (12%); however, no severe complications were observed. After surgery, 25 patients (96%) maintained the swallowing function and only one patient (4%) had deteriorating NdSSS and FOIS scores. No patients were referred to our hospital due to severe aspiration pneumonia after the surgery. Two patients did not require a feeding tube after the surgery and returned to oral intake. Laryngeal closure may be a safe surgical procedure for preventing chronic aspiration and may also maintain swallowing function of patients with ALS. Further multicenter prospective studies using the gold standard videofluoroscopic swallowing examination are required to support our findings.


Asunto(s)
Esclerosis Amiotrófica Lateral , Trastornos de Deglución , Humanos , Esclerosis Amiotrófica Lateral/complicaciones , Trastornos de Deglución/diagnóstico , Estudios Prospectivos , Estudios Retrospectivos , Deglución
2.
J Med Syst ; 46(12): 106, 2022 Dec 12.
Artículo en Inglés | MEDLINE | ID: mdl-36503962

RESUMEN

Incident reporting systems have been widely adopted to collect information about patient safety incidents. Much of the value of incident reports lies in the free-text section. Computer processing of semantic information may be helpful to analyze this. We developed a novel scoring system for decision making to assess the severity of incidents using the semantic characteristics of the text in incident reports, and compared its results with experts' opinions. We retrospectively analyzed free-text data from incident reports from January 2012 to September 2021 at Nagoya University Hospital, Aichi, Japan. The sample was allocated to training and validation datasets using the hold-out method. Morphological analysis was used to segment terms in the training dataset. We calculated a severity term score, a severity report score and severity group score, by report volume size, and compared these with conventional severity classifications by patient safety experts and reporters. We allocated 96,082 incident reports into two groups. We calculated 1,802 severity term scores from the 48,041 reports in the training dataset. There was a significant difference in severity report score between reports categorized as severe and not severe by experts (95% confidence interval [CI] -0.83 to -0.80, p < 0.001, d = 0.81). Severity group scores were positively associated with severity ratings from experts and reporters (correlation coefficients 0.73 [95% CI 0.63-0.80, p < 0.001] and 0.79 [95% CI 0.71-0.85, p < 0.001]) for all departments. Our severity scoring system could therefore contribute to better organizational patient safety.


Asunto(s)
Proyectos de Investigación , Gestión de Riesgos , Humanos , Estudios Retrospectivos , Seguridad del Paciente , Japón
3.
Nagoya J Med Sci ; 80(1): 91-98, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-29581618

RESUMEN

Advances in the diagnosis and treatment of patients with maxillary sinus carcinoma have improved patient prognosis. This study investigated changes in demographic and clinical characteristics, treatment methods, and outcomes of patients with maxillary sinus carcinomas during three different 10-year periods spanning 60 years at our university hospital. Of the 233 patients with maxillary sinus carcinomas managed at Nagoya University Hospital, 135 were treated between 1951 and 1960 (first period), 35 between 1981 and 1990 (second period), and 63 between 2003 and 2012 (third period). Patient age, sex, TN classifications, treatment methods, and survival rates were compared among patients treated during these time periods. Of the 135, 35, and 63 patients with maxillary sinus carcinomas treated during these time periods, 86 (63.7%), 21 (51.4%), and 48 (76.2%), respectively, were men; 14 (10.4%), six (17.1%), and 14 (22.2%), respectively, were aged ≥70 years; and 135 (100%), 28 (80.0%), and 43 (68.3%), respectively, were treated surgically. The 5-year overall survival rates in patients treated during the first, second, and third periods were 29.7%, 44.3%, and 57.5%, respectively. These findings indicated that advances in the diagnosis and treatment of patients with maxillary sinus carcinoma, including computed tomography and craniofacial resection, have contributed to improvements in patient survival rates.


Asunto(s)
Neoplasias del Seno Maxilar/diagnóstico , Neoplasias del Seno Maxilar/cirugía , Adolescente , Adulto , Anciano , Niño , Preescolar , Femenino , Hospitales Universitarios/estadística & datos numéricos , Humanos , Lactante , Recién Nacido , Masculino , Neoplasias del Seno Maxilar/mortalidad , Persona de Mediana Edad , Tasa de Supervivencia , Adulto Joven
4.
J Clin Ultrasound ; 46(1): 69-72, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-28440859

RESUMEN

Lingual node metastasis from early-stage squamous cell carcinoma of the tongue is uncommon and difficult to detect. We present a case of a lingual lymph node metastasis from an early tongue cancer. Sonography demonstrated a small nonpalpable lingual node on the floor of the mouth. The patient underwent complete surgical resection and had no evidence of recurrence 5 years later. © 2017 Wiley Periodicals, Inc. J Clin Ultrasound 46:69-72, 2018.


Asunto(s)
Carcinoma de Células Escamosas/diagnóstico por imagen , Neoplasias de Cabeza y Cuello/diagnóstico por imagen , Ganglios Linfáticos/diagnóstico por imagen , Neoplasias de la Lengua/diagnóstico por imagen , Carcinoma de Células Escamosas/patología , Femenino , Neoplasias de Cabeza y Cuello/patología , Humanos , Ganglios Linfáticos/patología , Metástasis Linfática , Persona de Mediana Edad , Carcinoma de Células Escamosas de Cabeza y Cuello , Neoplasias de la Lengua/patología , Ultrasonografía
5.
Nagoya J Med Sci ; 79(3): 331-338, 2017 08.
Artículo en Inglés | MEDLINE | ID: mdl-28878438

RESUMEN

The purpose of this study was to evaluate the clinical outcomes of radiotherapy for patients with T1/T2 glottic carcinoma. Patients with T1/T2 glottic carcinoma histopathologically diagnosed with squamous cell carcinoma and treated at our hospital between 2007 and 2015 were analyzed retrospectively. Our strategy for T1/T2 glottic carcinoma was as follows: radiotherapy alone with 2.25 Gy per fraction to a total of 25-28 fractions for patients with non-bulky T1 glottic carcinoma; concurrent chemoradiotherapy with oral S-1 and radiotherapy with 2 Gy per fraction to a total of 30 fractions for patients with T1 bulky/T2 favorable glottic carcinoma; or chemoradiotherapy with high-dose cisplatin and radiotherapy with 2 Gy per fraction to a total of 35 fractions for T2 unfavorable glottic carcinoma. Forty-eight patients were eligible. The median follow-up period among surviving patients was 38 months (range, 11-107). The disease was T1a in 23%, T1b in 13%, and T2 in 65% of patients. The 3-year local control rate in all patients, T1a, T1b, and T2 was 96.7%, 100%, 100%, and 96.0%, respectively. Of the 46 patients, one with T2 glottic carcinoma developed recurrent disease at the primary site, and one with T2 glottic carcinoma had lymph node recurrences in the neck. Acute Grade 3 dermatitis occurred in 8 (17%) patients and late Grade 2 hypothyroidism occurred in 2 (4%) patients. This retrospective study shows that our optimized treatment strategy of radiotherapy depending on the stage of early glottic carcinoma is not only effective but also well-tolerated.


Asunto(s)
Glotis/patología , Neoplasias Laríngeas/radioterapia , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia
6.
Eur Arch Otorhinolaryngol ; 271(8): 2299-304, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24150543

RESUMEN

The objective of the study was to evaluate the association between changes in laryngeal sensation and initiation of swallowing reflex or swallowing function before and after (chemo)radiotherapy. A prospective study was conducted in a tertiary referral university hospital. Thirteen patients who received (chemo)radiotherapy for treatment of laryngeal or hypopharyngeal cancer were included. Laryngeal sensation was evaluated at the tip of the epiglottis before and 1, 3 months, and 1 year after (chemo)radiotherapy. Videofluoroscopy was performed at the same time. Quantitative determinations included changes in laryngeal sensation, computed analysis of pharyngeal delay time, the distance and velocity of hyoid bone movement during the phase of hyoid excursion, and pharyngeal residue rate (the proportion of the bolus that was left as residue in the pharynx at the first swallow). Laryngeal sensation significantly deteriorated 1 month after (chemo)radiotherapy, but there was a tendency to return to pretreatment levels 1 year after treatment. Neither pharyngeal delay time nor displacement of the hyoid bone changed significantly before and after (chemo)radiotherapy. In addition, there was no significant difference in the mean velocity of hyoid bone movement and the amount of stasis in the pharynx at the first swallow before and after (chemo)radiotherapy. After (chemo)radiotherapy, laryngeal sensation deteriorated. But, in this study, videofluoroscopy showed that swallowing reflex and function were maintained.


Asunto(s)
Carcinoma de Células Escamosas/tratamiento farmacológico , Carcinoma de Células Escamosas/radioterapia , Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Neoplasias de Cabeza y Cuello/radioterapia , Nervios Laríngeos/fisiopatología , Laringe/fisiopatología , Faringe/inervación , Sensación/efectos de la radiación , Anciano , Anciano de 80 o más Años , Quimioradioterapia , Deglución , Femenino , Estudios de Seguimiento , Humanos , Nervios Laríngeos/efectos de los fármacos , Nervios Laríngeos/efectos de la radiación , Laringe/efectos de los fármacos , Laringe/efectos de la radiación , Masculino , Persona de Mediana Edad , Faringe/fisiopatología , Faringe/efectos de la radiación , Estudios Prospectivos , Carcinoma de Células Escamosas de Cabeza y Cuello , Factores de Tiempo
7.
BMJ Health Care Inform ; 31(1)2024 Apr 19.
Artículo en Inglés | MEDLINE | ID: mdl-38642920

RESUMEN

OBJECTIVES: Incident reporting systems are widely used to identify risks and enable organisational learning. Free-text descriptions contain important information about factors associated with incidents. This study aimed to develop error scores by extracting information about the presence of error factors in incidents using an original decision-making model that partly relies on natural language processing techniques. METHODS: We retrospectively analysed free-text data from reports of incidents between January 2012 and December 2022 from Nagoya University Hospital, Japan. The sample data were randomly allocated to equal-sized training and validation datasets. We conducted morphological analysis on free text to segment terms from sentences in the training dataset. We calculated error scores for terms, individual reports and reports from staff groups according to report volume size and compared these with conventional classifications by patient safety experts. We also calculated accuracy, recall, precision and F-score values from the proposed 'report error score'. RESULTS: Overall, 114 013 reports were included. We calculated 36 131 'term error scores' from the 57 006 reports in the training dataset. There was a significant difference in error scores between reports of incidents categorised by experts as arising from errors (p<0.001, d=0.73 (large)) and other incidents. The accuracy, recall, precision and F-score values were 0.8, 0.82, 0.85 and 0.84, respectively. Group error scores were positively associated with expert ratings (correlation coefficient, 0.66; 95% CI 0.54 to 0.75, p<0.001) for all departments. CONCLUSION: Our error scoring system could provide insights to improve patient safety using aggregated incident report data.


Asunto(s)
Gestión de Riesgos , Semántica , Humanos , Estudios Retrospectivos , Gestión de Riesgos/métodos , Seguridad del Paciente , Hospitales Universitarios
8.
Mol Clin Oncol ; 18(2): 10, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36761390

RESUMEN

Endoscopic cricopharyngeal myotomy (ECPM) is a safe and minimally invasive technique that is used to treat patients whose esophageal inlet fails to open because of specific diseases, such as Wallenberg's syndrome and neuromuscular diseases. The present study described the performance of a new, safe and simple ECPM using a curved rigid laryngoscope, which is used for endoscopic laryngopharyngeal surgery for patients with dysphagia due to pharyngeal residue after swallowing. The patient was an 80-year-old woman with laryngeal palsy caused by lower cranial nerve palsy after cranial base schwannoma surgery. ECPM was performed with a curved rigid laryngoscope. The postoperative course was good; postoperative rehabilitation eliminated the residue after swallowing a thickened solution and mealtimes were shorter than before surgery. This procedure allows the hypopharynx to be widely expanded and it is possible to develop a wider surgical field than when using a direct laryngoscope. In addition, this procedure appears to be relatively easy to perform if the surgeon is familiar with the curved rigid laryngoscope technique.

9.
J Neurol Surg B Skull Base ; 84(1): 69-78, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36743718

RESUMEN

Objective Surgical indications for advanced-stage squamous cell carcinoma (SCC) of the external auditory canal (EAC) are highly dependent on the skull base surgery team. The aim of this study was to evaluate the surgical outcomes in patients with SCC of the EAC and to clarify the surgical indication of far advanced cases using the T4 subclassification. Methods Patients with SCC of the EAC who underwent curative treatment from 2002 to 2021 at our hospital were retrospectively reviewed. Clinical and surgical results, including operative data, overall survival (OS), and disease-specific survival (DSS), were analyzed. To clarify the surgical indication for advanced-stage tumors, we proposed the T4 subclassification. Results In the 46 patients included in the study, 8 patients had T1 tumors, 10 had T2 tumor, 5 had T3 tumors, and 23 had T4 tumors. The 5-year DSS with T1, T2, T3, and T4 tumors were 100, 85.7, 100, and 61.7%, respectively. No prognostic impacts for margin status were found between the 5-year OS and DSS ( p = 0.23 and 0.13, respectively). Patients with far-advanced-stage (T4b) tumors were significantly associated with shorter DSS than those with early-stage (T1/T2) and advanced-stage (T3/T4a) tumors ( p = 0.007 and 0.03, respectively). Conclusion The present study focused on patients with SCC of the EAC at a university hospital over a period of 20 years, especially with skull base involvement, and a T4 subclassification was proposed. Complete tumor resection in an en bloc fashion could help achieve a good survival rate even in patients with locally advanced tumors.

10.
J Neurogenet ; 26(3-4): 387-96, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22385075

RESUMEN

Although the etiology of idiopathic sudden sensorineural hearing loss (SSNHL) remains unclear, the pathologically increased permeability of blood vessels, elucidated by gadolinium-enhanced magnetic resonance imaging (MRI), suggests the involvement of inflammation. Because SSNHL is considered a multifactorial disease, possibly caused by interactions between genetic factors and environmental factors, the authors investigated the associations of polymorphisms of inflammatory mediator genes with susceptibility to SSNHL. The authors compared 72 patients affected by SSNHL and 2010 adults (1010 men and 1000 women; mean age 59.2 years; range 40-79) who participated in the National Institute for Longevity Sciences Longitudinal Study of Aging. Multiple logistic regression was used to obtain odds ratios (ORs) for SSNHL in subjects with polymorphisms in the genes IL-6 C - 572G, IL-4R G1902A, IL-10 A - 592C, TNFα C - 863A, TNFRSF1B G593A, VEGF C936T, VEGF C - 2578A, and VEGF G - 1154A, with adjustment for age, gender, and any history of hypertension, diabetes, or dyslipidemia. The per-allele OR for the risk of SSNHL in subjects bearing IL-6 C - 572G was 1.480 (95% confidence interval [CI], 1.037-2.111) in model 1 (no adjustment), 1.463 (CI, 1.022-2.094) in model 2 (adjusted for age and gender), and 1.460 (CI, 1.016-2.097) in model 3 (adjusted for age, gender, and a history of hypertension, diabetes, or dyslipidemia). Under the dominant model of inheritance, the ORs were 1.734 (CI, 1.080-2.783) in model 1, 1.690 (CI, 1.050-2.721) in model 2, and 1.669 (CI, 1.035-2.692) in model 3. The remaining seven polymorphisms failed to show any associations with the risk of SSNHL. These data need to be confirmed on larger series of patients. In conclusion, the IL-6 C - 572G polymorphism is associated with a risk of SSNHL. Because permeability of blood vessels in the inner ear is frequently increased in patients with SSNHL, inflammation of the inner ear might be involved.


Asunto(s)
Predisposición Genética a la Enfermedad , Pérdida Auditiva Sensorineural/genética , Interleucina-6/genética , Polimorfismo Genético/genética , Adulto , Anciano , Femenino , Frecuencia de los Genes , Genotipo , Humanos , Estudios Longitudinales , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad
11.
Oncology ; 83(1): 38-44, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22722580

RESUMEN

OBJECTIVE: This pharmacokinetic study of S-1 was conducted in patients in whom glomerular filtration rate (GFR) was directly measured to explore the possibility of adjusting the S-1 dose on the basis of GFR in patients with normal or nearly normal renal function. METHODS: S-1 was given to 12 patients twice daily for 28 consecutive days followed by 14 days of rest, repeated every 6 weeks. GFR was measured on the basis of inulin clearance (CLin) before the first day of treatment. RESULTS: The area under the time-concentration curve (AUC) of 5-fluorouracil (5-FU) correlated with that of 5-chloro-2,4-dihydroxypyridine (CDHP, r = 0.750, p = 0.005). The AUC of CDHP correlated with the measured 24-hour creatinine clearance (CLcr) per subject (r = -0.620, p = 0.032), but not with the CLin (r = -0.356, p = 0.257). The AUC of 5-FU did not correlate with either the 24-hour CLcr per subject (r = -0.401, p = 0.187) or with the CLin (r = -0.300, p = 0.351). CONCLUSION: Dosage adjustment based on the GFR does not reduce individual variations in 5-FU concentrations among patients with normal or nearly normal renal function who receive S-1.


Asunto(s)
Antimetabolitos Antineoplásicos/farmacocinética , Inulina/farmacocinética , Ácido Oxónico/farmacocinética , Tegafur/farmacocinética , Anciano , Antimetabolitos Antineoplásicos/administración & dosificación , Área Bajo la Curva , Creatinina/farmacocinética , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Combinación de Medicamentos , Femenino , Fluorouracilo/farmacocinética , Tasa de Filtración Glomerular , Humanos , Pruebas de Función Renal , Masculino , Persona de Mediana Edad , Ácido Oxónico/administración & dosificación , Piridinas/farmacocinética , Valores de Referencia , Tegafur/administración & dosificación
12.
Drug Metab Dispos ; 39(9): 1503-10, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21673128

RESUMEN

Sandwich-cultured hepatocytes (SCH) are a useful tool for evaluating hepatobiliary drug transport in vitro. Some studies have investigated the in vitro-in vivo correlations of the biliary clearance of drugs using SCH. In most cases, the biliary clearance observed in vivo correlated well with the predicted clearance, but the predicted absolute values were underestimated when based on in vitro experiments with SCH. We hypothesized that the down-regulated function of uptake transporters is one of the causes of this underestimation. Therefore, the uptake of taurocholate, digoxin, pravastatin, and rosuvastatin was investigated in sandwich-cultured rat hepatocytes (SCRH) cultured for 5, 24, 48, and 96 h, and the predicted hepatic clearance from in vitro uptake clearance (CL(H, vitro)) was calculated with a dispersion model. In SCRH cultured for 96 h, the saturable uptake of taurocholate, digoxin, pravastatin, and rosuvastatin decreased to 7.5, 3.3, 64, and 23%, respectively, of their uptake in hepatocytes cultured for 5 h, and a better prediction of in vivo hepatic clearance (CL(H, vivo)) was achieved when based on CL(H, vitro) of 5-h-cultured hepatocytes. These results suggest that the uptake activity is considerably reduced in cell culture, even in a sandwich-culture format. In a similar study, we also examined taurocholate and rosuvastatin in sandwich-cultured human hepatocytes (SCHH). Unlike in SCRH, the saturable uptake of these compounds did not differ markedly in SCHH cultured for 5 or 96 h. Thus, the uptake activity in SCHH was maintained relatively well compared with that in SCRH.


Asunto(s)
Digoxina/farmacocinética , Fluorobencenos/farmacocinética , Hepatocitos/metabolismo , Proteínas de Transporte de Membrana/metabolismo , Pravastatina/farmacocinética , Pirimidinas/farmacocinética , Sulfonamidas/farmacocinética , Ácido Taurocólico/farmacocinética , Animales , Bilis/metabolismo , Transporte Biológico , Técnicas de Cultivo de Célula , Células Cultivadas , Humanos , Inactivación Metabólica , Hígado/metabolismo , Masculino , Ratas , Ratas Sprague-Dawley , Rosuvastatina Cálcica
13.
Jpn J Clin Oncol ; 41(8): 973-9, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21693483

RESUMEN

OBJECTIVE: Patients with locally advanced head and neck cancer were treated with concurrent chemoradiotherapy using three courses of cisplatin. However, many patients were unable to complete the scheduled cisplatin treatment due to adverse effects. The objective of this study was to retrospectively elucidate the source of the low completion rate of cisplatin courses. METHODS: Between November 2007 and 28 May 2010, patients with head and neck cancer were treated with curative intent according to the concurrent chemoradiotherapy protocol (66-70 Gy at 2 Gy/day with cisplatin 80 mg/m(2) on Days 1, 22 and 43). Treatment courses, hematological data and other parameters were investigated, and the treatment completion rates and reasons for treatment failure were analyzed. RESULTS: Among the 28 patients, cisplatin was administered during the period of radiotherapy a total of 3 times in 9 (32%) patients, 2 times in 15 (54%) patients and only 1 time in 4 (14%) patients. Multiple regression analysis of the development of neutropenia at 3 weeks after the first cisplatin administration revealed that the serum albumin level was a significant explanatory variable (R(2)= 0.664, ß = 0.517, P< 0.01). Pearson's product-moment correlation coefficient showed a strong correlation between the serum albumin level and the neutrophil count after 3 weeks (r = 0.605, P< 0.01). CONCLUSIONS: The treatment completion rate by this protocol was low in head and neck cancer patients even when the cisplatin dose was reduced to 80 mg/m(2). This tendency was seen in patients with a low serum albumin level.


Asunto(s)
Antineoplásicos/efectos adversos , Carcinoma de Células Escamosas/tratamiento farmacológico , Cisplatino/efectos adversos , Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Neutropenia/inducido químicamente , Albúmina Sérica/metabolismo , Adulto , Anciano , Anemia/inducido químicamente , Antineoplásicos/uso terapéutico , Índice de Masa Corporal , Carcinoma de Células Escamosas/metabolismo , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/radioterapia , Cisplatino/uso terapéutico , Terapia Combinada , Dermatitis/etiología , Femenino , Neoplasias de Cabeza y Cuello/metabolismo , Neoplasias de Cabeza y Cuello/patología , Neoplasias de Cabeza y Cuello/radioterapia , Hemoglobinas/metabolismo , Humanos , Recuento de Leucocitos , Leucopenia/inducido químicamente , Masculino , Persona de Mediana Edad , Mucositis/etiología , Radioterapia/efectos adversos , Análisis de Regresión , Estudios Retrospectivos
14.
Auris Nasus Larynx ; 48(2): 274-280, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32828592

RESUMEN

OBJECTIVE: The aim of this study is to establish a unilateral tongue atrophy model by cutting the hypoglossal nerve and to evaluate the safety and feasibility of a fat injection of adipose-derived stem cells (ADSCs) to restore swallowing function. METHODS: A total of 12 rabbits were randomized to three groups; the ADSCs+fat group (n=4), the fat group (n=4) and the control group (n=4). All rabbits were treated with denervation of the left hypoglossal nerve and their conditions including body weight and food intake were checked during follow-up periods (8 weeks). At 4 weeks after the transection of the nerve, rabbits received the injection therapy into the denervated side of the tongue with 1.0mL fat tissue premixed with 0.5mL ADSCs in the ADSCs+fat group, 1.0mL fat tissue premixed with 0.5mL PBS in the fat group and 1.5mL PBS in the control group. Rabbits were euthanized 8 weeks post-treatment and resected tongues were collected, formalin-fixed and paraffin embedded. To evaluate the change of the intrinsic muscles of the tongue, muscle fibers around the treatment area was analyzed by evaluating 5 consecutive hematoxylin-eosin slides per rabbit. RESULTS: Food intake did not decrease upon nerve denervation, and none of the rabbits displayed adverse effect such as aspiration, surgical wound dehiscence or infection. No significant body weight changes were found between the three groups at 4 and 8 weeks after nerve transection (p>0.05). In the control group, the denervated side of tongue had significantly smaller muscle fiber areas and diameters compared to the non-denervated side (p<0.05). The ADSCs+fat group demonstrated a larger area of inferior longitudinal muscle fibers compared to the control and the fat groups (582±312µm2 vs. 405±220µm2 and 413±226µm2; p<0.05). A significant thicker lesser diameter of inferior longitudinal muscle fibers was found in the ADSCs+fat group compared to the control and the fat groups (24±8µm vs. 20±6µm and 20±7µm; p<0.05). CONCLUSION: The rabbit tongue atrophy model was found suitable for the assessment of muscle change after nerve transection. Fat injection therapy with ADSCs demonstrated great potential to prevent the muscle atrophy after denervation and to promote the muscle regeneration around the injection area.


Asunto(s)
Tejido Adiposo/citología , Modelos Animales de Enfermedad , Nervio Hipogloso/cirugía , Parálisis/terapia , Conejos , Trasplante de Células Madre , Lengua/patología , Tejido Adiposo/trasplante , Animales , Trastornos de Deglución/etiología , Trastornos de Deglución/terapia , Desnervación , Estudios de Factibilidad , Inyecciones , Masculino , Atrofia Muscular , Parálisis/complicaciones , Proyectos Piloto , Distribución Aleatoria , Lengua/inervación
15.
Auris Nasus Larynx ; 48(3): 518-524, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33272716

RESUMEN

OBJECTIVE: Tracheostomy is an important surgical procedure for coronavirus disease-2019 (COVID-19) patients who underwent prolonged tracheal intubation. Surgical indication of tracheostomy is greatly affected by the general condition of the patient, comorbidity, prognosis, hospital resources, and staff experience. Thus, the optimal timing of tracheostomy remains controversial. METHODS: We reviewed our early experience with COVID-19 patients who underwent tracheostomy at one tertiary hospital in Japan from February to September 2020 and analyzed the timing of tracheostomy, operative results, and occupational infection in healthcare workers (HCWs). RESULTS: Of 16 patients received tracheal intubation with confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, five patients (31%) received surgical tracheostomy in our hospital. The average consultation time for surgical tracheostomy was 7.4 days (range, 6 - 9 days) from the COVID-19 team to the otolaryngologist. The duration from tracheal intubation to tracheostomy ranged from 14 to 27 days (average, 20 days). The average time of tracheostomy was 27 min (range, 17 - 39 min), and post-wound bleeding occurred in only one patient. No significant differences in hemoglobin (Hb) levels were found between the pre- and postoperative periods (mean: 10.2 vs. 10.2 g/dl, p = 0.93). Similarly, no difference was found in white blood cell (WBC) count (mean: 12,200 vs. 9,900 cells /µl, p = 0.25). After the tracheostomy, there was no occupational infection among the HCWs who assisted the tracheostomy patients during the perioperative period. CONCLUSION: We proposed a modified weaning protocol and surgical indications of tracheostomy for COVID-19 patients and recommend that an optimal timing for tracheostomy in COVID-19 patients of 2 - 3 weeks after tracheal intubation, from our early experiences in Japan. An experienced multi-disciplinary tracheostomy team is essential to perform a safe tracheostomy in patients with COVID-19 and to minimize the risk of occupational infection in HCWs.


Asunto(s)
COVID-19/terapia , Respiración Artificial/métodos , Insuficiencia Respiratoria/terapia , Traqueostomía/métodos , Anciano , Femenino , Humanos , Japón , Masculino , Persona de Mediana Edad , Equipo de Protección Personal , Estudios Retrospectivos , SARS-CoV-2 , Factores de Tiempo , Resultado del Tratamiento , Desconexión del Ventilador
16.
Auris Nasus Larynx ; 48(3): 525-529, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33446370

RESUMEN

OBJECTIVE: Involvement in the tracheostomy procedure for COVID-19 patients can lead to a feeling of fear in medical staff. To address concerns over infection, we gathered and analyzed experiences with tracheostomy in the COVID-19 patient population from all over Japan. METHODS: The data for health-care workers involved in tracheostomies for COVID-19-infected patients were gathered from academic medical centers or their affiliated hospitals from all over Japan. RESULTS: Tracheostomies have been performed in 35 COVID-19 patients with a total of 91 surgeons, 49 anesthesiologists, and 49 surgical staff members involved. Twenty-eight (80%) patients underwent surgery more than 22 days after the development of COVID-19-related symptoms (11: 22-28 days and 17: ≥29 days). Thirty (85.7%) patients underwent surgery ≥ 15 days after intubation (14: 15-21 days, 6: 22-28 days, and 10: ≥29 days). Among the total of 189 health-care workers involved in the tracheostomy procedures, 25 used a powered air-purifying respirator (PAPR) and 164 used a N95 mask and eye protection. As a result, no transmission to staff occurred during the 2 weeks of follow-up after surgery. CONCLUSION: No one involved in tracheostomy procedures were found to have been infected with COVID-19 in this Japanese study. The reason is thought to be that the timing of the surgery was quite late after the infections, and the surgery was performed using appropriate PPE and surgical procedure. The indications for and timing of tracheostomy for severe COVID-19 patients should be decided through multidisciplinary discussion.


Asunto(s)
COVID-19/terapia , Transmisión de Enfermedad Infecciosa de Paciente a Profesional/prevención & control , Insuficiencia Respiratoria/terapia , Traqueostomía/métodos , Oxigenación por Membrana Extracorpórea , Dispositivos de Protección de los Ojos , Personal de Salud , Humanos , Transmisión de Enfermedad Infecciosa de Paciente a Profesional/estadística & datos numéricos , Japón , Respiradores N95 , Aisladores de Pacientes , Equipo de Protección Personal , Respiración Artificial/métodos , Dispositivos de Protección Respiratoria , SARS-CoV-2
17.
Auris Nasus Larynx ; 47(3): 472-476, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32345515

RESUMEN

OBJECTIVE: The ongoing pandemic coronavirus disease-2019 (COVID-19) infection causes severe respiratory dysfunction and has become an emergent issue for worldwide healthcare. Since COVID-19 spreads through contact and droplet infection routes, careful attention to infection control and surgical management is important to prevent cross-contamination of patients and medical staff. Tracheostomy is an effective method to treat severe respiratory dysfunction with prolonged respiratory management and should be performed as a high-risk procedure METHOD: The anesthetic and surgical considerations in this case involved difficult goals of the patient safety and the management of infection among health care workers. Our surgical procedure was developed based on the previous experiences of severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome coronavirus (MERS-CoV). RESULTS: We described the management procedures for tracheostomy in a patient with COVID-19, including the anesthesia preparation, surgical procedures, required medical supplies (a N95 mask or powered air purifying respirator, goggles, face shield, cap, double gloves, and a water-resistant disposable gown), and appropriate consultation with an infection prevention team. CONCLUSION: Appropriate contact, airborne precautions, and sufficient use of muscle relaxants are essential for performing tracheostomy in a patient with COVID-19.


Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/cirugía , Transmisión de Enfermedad Infecciosa de Paciente a Profesional/prevención & control , Neumonía Viral/cirugía , Traqueostomía/métodos , Anciano , Anestesia Local/métodos , COVID-19 , Infecciones por Coronavirus/transmisión , Humanos , Pulmón/diagnóstico por imagen , Masculino , Fármacos Neuromusculares no Despolarizantes/administración & dosificación , Pandemias , Equipo de Protección Personal , Neumonía Viral/transmisión , Radiografía Torácica , Rocuronio/administración & dosificación , SARS-CoV-2 , Tomografía Computarizada por Rayos X
18.
J Neurol Surg B Skull Base ; 81(5): 585-593, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-33134027

RESUMEN

Objective This study was aimed to evaluate health-related quality of life in patients undergoing anterolateral craniofacial resection (AL-CFR) with orbital exenteration (OE) for malignant skull base tumors and to investigate the effects of early psychiatric intervention. Design Present study is a prospective, observational study. Setting The study took place at the hospital department. Participants Twenty-six consecutive patients were selected who underwent AL-CFR with OE at our hospital between 2005 and 2015. Main Outcome Measures Health-related quality of life was assessed preoperatively and 3, 6, 12, and 24 months after surgery using the Hospital Anxiety and Depression Scale (HADS) and medical outcomes study 8-items Short Form health survey (SF-8). In all cases, psychiatric intervention was organized by the consultation liaison psychiatry team preoperatively and postoperatively. Results Ten (38.0%) of the 26 patients died and 16 (62.0%) were alive and disease-free at the end of the study. The 3-year overall and disease-free survival rates were 64.9% and 53.3%, respectively. Twenty-one patients (80.8%) developed psychiatric complications after surgery and needed treatment with psychotropic medication. Before surgery, 28% of patients had HADS scores ≥8 for anxiety and 20% had scores ≥8 for depression. Seven of the eight items in the SF-8 were significantly lower than those for the general Japanese population. However, scores for all the SF-8 items gradually improved during postoperative follow-up, reaching approximately 50 points, which is the national standard value, at 2 years after surgery. Conclusions Craniofacial resection with OE was feasible and well tolerated in patients with malignant skull base tumors who received early psychiatric intervention to decrease the considerable psychological impact of this procedure.

19.
Auris Nasus Larynx ; 46(6): 889-895, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30857763

RESUMEN

OBJECTIVE: The purpose of this study was to evaluate the usefulness of ultrasound (US) volume measurement of the cervical lymph nodes for diagnosing nodal metastasis in patients with head and neck cancer using a node-by-node comparison. METHODS: Thirty-four consecutive patients with head and neck cancer from one tertiary university hospital were prospectively enrolled from 2012 to 2017. Patients with histologically proven squamous cell primary tumors in the head and neck region scheduled to undergo a therapeutic neck dissection were eligible. For each patient, 1-4 target lymph nodes were selected from the planned neck dissection levels. Lymph nodes with thickness >20 mm or in a cluster were excluded. Node-by-node comparisons between the pre-operative US assessment, the post-operative actual measurements and histopathological results were performed for all target lymph nodes. Quantitative measurements, such as three diameters, ratios of the three diameters and volume were analyzed in this study. Lymph node volume was calculated using the ellipsoid formula. RESULTS: Patients comprised 28 men and 6 women with a mean age of 60.0 years (range, 29-80 years) at the time of surgery. In total, 67 target lymph nodes were analyzed in this study and the thickness ranged from 3.9 to 20.0 mm (mean 8.0 mm). There was a strong correlation between the US volume and post-operative actual volume (ρ = 0.87, p < 0.01). The US volume measured 2156 ± 2156 mm3 for the tumor positive nodes, which was significantly greater than the US volume of 512 ± 315 mm3 for tumor negative nodes (p < 0.01). Significant differences between tumor positive and tumor negative nodes were found in five variables (volume, thickness, major axis, minor axis and ratio of minor axis to thickness) for total lymph nodes. To identify predictors of lymph node metastasis, ROC curves of the US variables of target lymph nodes were compared, of which 4 variables were considered acceptable for predicting the lymph node metastasis: volume (AUC 0.86), thickness (AUC 0.86), major axis (AUC 0.79), and minor axis (AUC 0.79) for total lymph nodes. The optimal cut-off level for US volume in total lymph nodes was found to be 1242 mm3, whereby a 62% sensitivity and 98% specificity was reached (likelihood ratio: 25.2). CONCLUSION: Pre-operative ultrasonic volume measurement of the cervical lymph nodes was useful for early detection of cervical nodal metastasis in head and neck cancer.


Asunto(s)
Neoplasias de Cabeza y Cuello/diagnóstico por imagen , Ganglios Linfáticos/diagnóstico por imagen , Carcinoma de Células Escamosas de Cabeza y Cuello/diagnóstico por imagen , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Neoplasias de Cabeza y Cuello/patología , Humanos , Ganglios Linfáticos/patología , Metástasis Linfática , Masculino , Persona de Mediana Edad , Cuello , Disección del Cuello , Tamaño de los Órganos , Carcinoma de Células Escamosas de Cabeza y Cuello/patología , Ultrasonografía
20.
Nagoya J Med Sci ; 81(2): 249-258, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-31239594

RESUMEN

Majority of head and neck cancer (HNC) patients are male, and more than 85% of patients with HNC have the habit of smoking and drinking. Due to the specific demographic characteristics, HNC patients are anticipated to have specific coping styles, affecting psychological distress, survival, and quality of life. We explored the subscales of the Mental Adjustment to Cancer (MAC) Scale in male patients with HNC, and then examined the correlation between revised subscales of the MAC scale and anxiety/depression. Participants were 150 male inpatients with HNC, and their demographic and medical data were obtained. Coping style was assessed by MAC scale. Anxiety and depression were assessed using the Hospital Anxiety and Depression Scale. Out of 40 items in the original MAC scale, 19 items were excluded by factor analysis, and the remaining 21 items were divided into three factors: Negative Adjustment, Positive Adjustment, and Abandonment. Negative and Positive Adjustments were similar to the copings of mixed gender patients with heterogeneous cancers, and Abandonment was a new subscale specific to male patients with HNC. This subscale had a weak positive correlation with anxiety and depression. Male HNC patients revealed a specific coping style of Abandonment, related with psychological distress. We believe that an understanding of the Abandonment coping style revealed in our study will improve the psychological support offered to male patients with HNC.


Asunto(s)
Neoplasias de Cabeza y Cuello/psicología , Adulto , Anciano , Anciano de 80 o más Años , Ansiedad/diagnóstico , Ansiedad/terapia , Estudios de Cohortes , Depresión/diagnóstico , Depresión/terapia , Análisis Factorial , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Encuestas y Cuestionarios , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA