Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 18 de 18
Filtrar
Mais filtros

Base de dados
Tipo de documento
Intervalo de ano de publicação
2.
J Infect ; 39(2): 157-60, 1999 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-10609536

RESUMO

Viral epiglottitis (supraglottitis) is a rare entity but its presentation can mimic that of bacterial epiglottis. Regardless of the causative agent, supraglottitis is a serious disease mostly affecting children and rarely seen in adults. Early suspicion and proper evaluation are mandatory to prevent a life-threatening crisis. In both children and adults the infectious aetiology in supraglottitis is predominantly bacterial while viruses are rare, especially in adults. We describe a case of supraglottitis in an adult in which the symptoms were insidious and blood indices suggested a bacterial aetiology. However, laryngoscopic examination revealed an ulcer over the left aryepiglottic fold and serology was positive for Herpes simplex virus (HSV) IgM. Because supraglottitis due to HSV is a rare entity with few reported cases in the literature, this case is presented to highlight the viral involvement in this disease and its management.


Assuntos
Epiglotite/virologia , Simplexvirus/isolamento & purificação , Adolescente , Diagnóstico Diferencial , Epiglotite/diagnóstico , Epiglotite/tratamento farmacológico , Epiglotite/fisiopatologia , Feminino , Humanos
3.
J Reconstr Microsurg ; 15(8): 585-90, 1999 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-10608739

RESUMO

Despite all the technical improvements in microvascular surgery and the experience gained in clinical practice, thrombosis at the site of microanastomosis remains a significant problem and a continuous source of frustration to most microsurgeons. Early recognition of vascular complications and prompt reexploration with vascular revision remain an essential and standard conduct for salvage. However, in situations where conditions for no-reflow have been established due to severe vasospasm or prolonged ischemia time, it becomes obvious that surgical reexploration alone is not enough to salvage a failing flap or a replanted limb. In such situations, the loss of the revascularized tissues seems to be inevitable. The authors describe their experience in partially salvaging a failing free flap with recombinant tissue plasminogen activator (rt-PA), reversing an established state of no-reflow. Pharmacologic manipulation of the complex and variable factors influencing anastomotic patency in microvascular tissue transfer seems to offer a new hope for preventing failures, as well as for salvaging failing flaps. It appears also that free-tissue transfer failure is not an all-or-none phenomenon.


Assuntos
Bochecha/cirurgia , Fibrinolíticos/administração & dosagem , Rejeição de Enxerto/tratamento farmacológico , Terapia de Salvação/métodos , Retalhos Cirúrgicos , Ativador de Plasminogênio Tecidual/administração & dosagem , Adulto , Bochecha/irrigação sanguínea , Rejeição de Enxerto/etiologia , Rejeição de Enxerto/prevenção & controle , Neoplasias de Cabeça e Pescoço/diagnóstico , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Injeções Intralesionais , Sarcoma/diagnóstico , Sarcoma/cirurgia , Retalhos Cirúrgicos/efeitos adversos , Resultado do Tratamento , Grau de Desobstrução Vascular/efeitos dos fármacos
4.
Otolaryngol Head Neck Surg ; 121(3): 263-8, 1999 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-10471868

RESUMO

Angioedema is an immunologically mediated, anatomically limited, nonpitting edema that can lead to life-threatening airway obstruction. To predict the risk of airway compromise in angioedema, we retrospectively reviewed 93 episodes in 80 patients from 1985 to 1995. Intubation or tracheotomy was necessary in 9 (9.7%) cases. Angiotensin-converting enzyme inhibitor use in 36 cases (39%) was associated with intensive care unit (ICU) admission (P = 0.05). ICU stay correlated significantly with presentation with voice change, hoarseness, dyspnea, and rash (P < 0.05). Voice change, hoarseness, dyspnea, and stridor were present in patients requiring airway intervention (P < 0.05). On the basis of our data, we propose a staging system by which airway risk may be predicted from the anatomic site of presentation. Patients with facial rash, facial edema, lip edema (stage I), and soft palate edema (stage II) were treated as outpatients and on the hospital ward. Patients with lingual edema (stage III) usually required ICU admission. All patients with laryngeal edema (stage IV) were admitted to the ICU. Airway intervention was necessary in 7% of stage III patients and in 24% of stage IV cases. No deaths were caused by angioedema. Airway risk in angioedema may be predicted by anatomic site of presentation, allowing appropriate triage with preparation for airway intervention in selected cases.


Assuntos
Obstrução das Vias Respiratórias/etiologia , Angioedema/complicações , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Obstrução das Vias Respiratórias/terapia , Algoritmos , Assistência Ambulatorial , Angioedema/classificação , Angioedema/diagnóstico , Angioedema/terapia , Feminino , Humanos , Unidades de Terapia Intensiva , Intubação Intratraqueal , Edema Laríngeo/complicações , Masculino , Pessoa de Meia-Idade , Admissão do Paciente , Estudos Retrospectivos , Fatores de Risco , Traqueotomia
7.
Laryngoscope ; 108(3): 345-50, 1998 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-9504605

RESUMO

The authors have investigated whether genetic abnormalities in two genes, loss of heterozygosity (LOH) of p53 and amplification of the cyclin D1 gene, correlate with clinical outcome in 56 matched pairs of blood and tumor from patients with squamous cell carcinoma of the head and neck (SCCHN). Frequency of p53 LOH was 47.4%, of cyclin D1 amplification 33.9%, and of both abnormalities together 23.7%. p53 LOH was associated with T4 (P = 0.003) and stage IV (P = 0.015) tumors. Cyclin D1 amplification was associated with recurrences and/or metachronous tumors (P = 0.007). The total number of p53 and cyclin D1 abnormalities (scored as zero, one, and two) show a pattern that seems to be additive; the increase in the number of these abnormalities is associated with a proportional increase in the frequency of T4, stage IV, presence of recurrences and/or metachronous tumors, and possibly a proportional decrease in the disease-free interval in the sample. The association of the markers with recurrences and/or metachronous tumors persists if the tumor stage effect is mathematically removed. The combined analysis of the p53 and cyclin D1 abnormalities seems to be more informative than either of them individually and may have predictive value in SCCHN.


Assuntos
Carcinoma de Células Escamosas/genética , Amplificação de Genes , Genes bcl-1 , Genes p53 , Neoplasias de Cabeça e Pescoço/genética , Perda de Heterozigosidade , Carcinoma de Células Escamosas/patologia , Intervalo Livre de Doença , Feminino , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/genética , Estadiamento de Neoplasias , Segunda Neoplasia Primária , Prognóstico , Resultado do Tratamento
8.
Plast Reconstr Surg ; 101(2): 453-60, 1998 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-9462782

RESUMO

The limited exposure of the lower lateral cartilage using the transcartilaginous approach may result in significant asymmetries in the nasal tip, especially in the region of the nasal domes and intermediate or middle crura. The author presents a new technique for exposing the lower lateral cartilage. Through a marginal incision, the whole endonasal surface of the lower lateral cartilage can be exposed, allowing the performance of different reduction and rearrangement techniques to the lateral and medial crura. The author discusses results of his experience using this new approach, emphasizing the surgical steps, advantages, and disadvantages. The transvestibular approach has proven to be a reliable approach that improves the predictability of endonasal rhinoplasty.


Assuntos
Rinoplastia/métodos , Cartilagem/cirurgia , Humanos , Masculino , Nariz/cirurgia
9.
Cancer Res ; 56(10): 2277-80, 1996 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-8625298

RESUMO

The treatment of locally advanced squamous cell carcinomas of the head and neck presents a challenge for oncologists. Radiation therapy alone fails to control many of these tumors. Chemotherapy added to radiation therapy has not clearly demonstrated an improvement in survival in the majority of trials reported to date. In this study, we have evaluated whether IFN-alpha-2a and/or 13-cis-retinoic acid (RA) enhance radiation cytotoxicity in a head and neck squamous cell carcinoma cell line (FaDu). Using a clonogenic cell survival assay, IFN-alpha-2a (1000 units/ml) or RA (1 microM) alone did not significantly enhance radiation cytotoxicity. The combination of the two agents, however, significantly increased the cytotoxicity of radiation against FaDu cells. The calculated survival fraction at 2 Gy was decreased from 0.649 with radiation alone to 0.477 when combined with the other two agents (P = 0.016), and the MID was decreased from 3.318 to 2.499 Gy (P = 0.028). A Phase I clinical trial to combine IFN-alpha-2a and/or RA in patients with unresectable head and neck cancer has been initiated.


Assuntos
Carcinoma de Células Escamosas/patologia , Neoplasias de Cabeça e Pescoço/patologia , Interferon-alfa/farmacologia , Isotretinoína/farmacologia , Radiossensibilizantes/farmacologia , Divisão Celular/efeitos dos fármacos , Humanos , Interferon alfa-2 , Proteínas Recombinantes , Células Tumorais Cultivadas/efeitos dos fármacos , Células Tumorais Cultivadas/efeitos da radiação , Ensaio Tumoral de Célula-Tronco
12.
J Dermatol Surg Oncol ; 16(10): 975-87, 1990 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-2229640

RESUMO

In this article, face lift, forehead lift, and blepharoplasty procedures are addressed. Special emphasis is made on anatomical and surgical guidelines. Some results and complications of the different procedures are presented.


Assuntos
Ritidoplastia , Pálpebras/cirurgia , Feminino , Testa/cirurgia , Humanos , Masculino , Ritidoplastia/métodos , Cirurgia Plástica
13.
Otolaryngol Head Neck Surg ; 103(3): 337-43, 1990 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-2122360

RESUMO

Endoscopic epiglottectomy (epiglottidectomy) may be performed with relative ease and minimal morbidity by using standard microlaryngoscopy techniques and the CO2 laser. Depending on the indications, the removal may be partial or complete. Indications for 51 epiglottectomies included treatment of supraglottic airway obstruction--30 cases; discovery of benign or malignant neoplasm (diagnosis and staging)--20 cases; treatment of malignant neoplasm--7 cases; glottic visualization--4 cases; and treatment of chronic inflammatory conditions--1 case. It is not unusual for a patient to have more than one indication for this procedure. Some epiglottic cancers invade the pre-epiglottic space. This crucial information may not be detectable by MRI or CT scanning techniques. Laser epiglottectomy provides a method to explore and perform a biopsy of the pre-epiglottic space and thereby stage these lesions accurately. There are no significant problems with postoperative alimentation, airway, or voice. Any form of primary or adjuvant therapy can be started without delay.


Assuntos
Epiglote/cirurgia , Laringoscopia , Terapia a Laser/métodos , Obstrução das Vias Respiratórias/cirurgia , Epiglote/patologia , Epiglotite/cirurgia , Humanos , Neoplasias Laríngeas/cirurgia , Microscopia/métodos , Cuidados Pós-Operatórios
14.
Otolaryngol Head Neck Surg ; 97(1): 18-23, 1987 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-3112681

RESUMO

Amputations of the nose and of the auricle present difficult management problems. Application of simple reattachment techniques, followed by aggressive medical therapy which consists of cooling, anticoagulation, antibiotic coverage, and multiple stab incisions in the amputated tissues, have resulted in the successful replantation of major portions of an amputated nose and an amputated auricle with satisfactory cosmetic results.


Assuntos
Amputação Traumática/cirurgia , Orelha Externa/cirurgia , Nariz/cirurgia , Reimplante/métodos , Adulto , Crioterapia , Orelha Externa/lesões , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Nariz/lesões , Sobrevivência de Tecidos/efeitos dos fármacos
15.
Plast Reconstr Surg ; 77(4): 596-604, 1986 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-3952216

RESUMO

The effects of cigarette smoking on the skin flaps of the face lift procedure are discussed. Reported elsewhere is a significant incidence of skin slough in smokers with use of wide undermining techniques. This complication is thought to be due to the vasoconstrictive effects of nicotine on the peripheral circulation. Our group has employed a conservative bilateral undermining technique in 407 face lifts. Of these, 32.4 percent were smokers and 67.6 percent were nonsmokers. No cases of skin slough were encountered. Our conservative undermining technique is briefly discussed. Among its advantages are shorter operative time, use of less local and/or general anesthesia, less intraoperative bleeding, adequate exposure for SMAS and platysmal surgery, and snugger skin closure without the risk of flap necrosis. As shown by our statistics, it is a safer procedure in smokers than the usually performed more radical procedure.


Assuntos
Face/cirurgia , Complicações Pós-Operatórias/etiologia , Fumar , Cirurgia Plástica/métodos , Feminino , Humanos , Pele/irrigação sanguínea , Retalhos Cirúrgicos , Vasoconstrição , Cicatrização
16.
Laryngoscope ; 96(3): 311-5, 1986 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-3951310

RESUMO

The anatomy of the supraorbital and supratrochlear notches and foramina has been studied in 111 human skulls. Of 108 skulls, 49.07% had bilateral supraorbital notches, 25.93% had bilateral supraorbital foramina, and 25% had a notch on one side and a foramen on the other side. Of 101 skulls, 97.03% had bilateral supratrochlear notches, 0.99% had bilateral foramina, and 1.98% had a notch on one side and a foramen on the other side. The methods of study and clinical relevance are discussed, along with the varying nomenclature used in the literature for defining the supraorbital and supratrochlear structures. Knowledge of the anatomy of the region is important for those doing forehead and brow lift surgery in order to avoid injuring the neurovascular bundles passing through these notches and foramina.


Assuntos
Cefalometria , Osso Frontal/anatomia & histologia , Osso Frontal/cirurgia , Humanos , Órbita/anatomia & histologia , Órbita/cirurgia
17.
Arch Otolaryngol Head Neck Surg ; 112(3): 269-76, 1986 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-3942631

RESUMO

We report 20 years of experience with conservative and cautious injection of small amounts of medical-grade liquid silicone in 347 postrhinoplasty patients for a total of 1,937 treatments. Medical-grade silicone was found to be a safe, effective, and valuable adjunct to cosmetic rhinoplastic procedures. Microdroplet technique with very small doses is recommended for the correction of nasal defects that may not be amenable to revisional surgery. Controlled release of this material to the medical profession after appropriate evaluation is recommended, along with proper training prior to its use.


Assuntos
Rinoplastia , Silicones/administração & dosagem , Terapia Combinada , Assimetria Facial/terapia , Seguimentos , Humanos , Injeções Subcutâneas/métodos , Deformidades Adquiridas Nasais/terapia
18.
Arch Otolaryngol Head Neck Surg ; 112(3): 290-6, 1986 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-3942634

RESUMO

Medical-grade injectable silicone has been safely and efficiently used for facial soft-tissue augmentation in 235 patients. Our 20-year experience with the microdroplet technique included 2,811 treatments performed for camouflaging furrows and grooves, augmentation of facial eminences, and elevation of certain depressed scars. The indications and techniques of injection are discussed. The augmenting effect is greater than that produced by the small volumes of silicone injected. Our study supports other work indicating induction of collagen deposition in the patients around the microdroplets of silicone, thus providing augmentation from volumes of collagen and silicone as well.


Assuntos
Face , Silicones/administração & dosagem , Cirurgia Plástica/métodos , Adulto , Envelhecimento , Cicatriz/terapia , Estética , Assimetria Facial/terapia , Feminino , Humanos , Injeções Subcutâneas/métodos , Masculino , Pessoa de Meia-Idade
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA