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1.
J Comput Assist Tomogr ; 25(3): 394-9, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11351189

RESUMO

PURPOSE: The purpose of this work was to determine whether cross-sectional area and coronal and sagittal diameter measurements of the trachea between inspiration and end-expiration on CT are significantly different between patients with acquired tracheomalacia and those without this condition. METHOD: Inspiratory and end-expiratory CT scans of the trachea of 23 normal patients and 10 patients with acquired tracheomalacia were analyzed. Percent changes in cross-sectional area, coronal, and sagittal diameters were calculated. RESULTS: For patients with tracheomalacia, mean percent changes in the upper and middle trachea between inspiration and expiration were 49 and 44%; mean changes in the coronal and sagittal diameters in the upper and middle tracheal were 4 and 10% and 39 and 54%, respectively. Control group mean percent changes in the upper and middle tracheal area were 12 and 14%, respectively, and mean changes in the coronal and sagittal diameters in the upper and middle trachea were 4 and 4% and 11 and 13%, respectively. Significant differences were calculated for changes in cross-sectional area and sagittal diameter between groups (p < 10-5). Based on receiver operator curve analysis, a > 18% change in the upper trachea and 28% change in the midtrachea between inspiration and expiration were observed; the probability of tracheomalacia was 89-100%. The probability of tracheomalacia was > 89%, especially if the change in sagittal diameter was > 28%. CONCLUSION: By measuring changes in tracheal cross-sectional area and sagittal diameters between inspiratory and end-expiratory CT, a significant difference can be identified between normal patients and those with acquired tracheomalacia.


Assuntos
Tomografia Computadorizada por Raios X , Doenças da Traqueia/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Obstrução das Vias Respiratórias/diagnóstico por imagem , Broncoscopia , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Curva ROC , Testes de Função Respiratória , Estudos Retrospectivos , Sensibilidade e Especificidade , Traqueia/diagnóstico por imagem
2.
J Thorac Cardiovasc Surg ; 121(3): 465-71, 2001 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-11241081

RESUMO

OBJECTIVE: Bronchogenic carcinoma in close proximity to or involving the carina remains a challenging problem for thoracic surgeons. The operative procedures to allow complete resection are technically demanding and can be associated with significant morbidity and mortality. Little is known about long-term survival data to guide therapy in these patients. METHODS: We conducted a single-institution retrospective review. RESULTS: We have performed 60 carinal resections for bronchogenic carcinoma: 18 isolated carinal resections for tumor confined to the carinal or proximal main stem bronchus; 35 carinal pneumonectomies; 5 carinal plus lobar resections, and 2 carinal resections for stump recurrence after prior pneumonectomy. Thirteen patients (22%) had a history of lung or airway surgery. The overall operative mortality was 15%, improved from the first half of the series (20%) to the second half (10%), and varied according to the type of resection performed. Adult respiratory distress syndrome was responsible for 5 early deaths, and all late deaths were related to anastomotic complications. In 34 patients, all lymph nodes were negative for metastatic disease; 15 patients had positive N1 nodes, and 11 patients had positive N2/N3 nodes. Complete follow-up was accomplished in 90%, with a mean follow-up of 59 months. The overall 5-year survival including operative mortality was 42%, with 19 absolute 5-year survivors. Survival was highest after isolated carinal resection (51%). Lymph node involvement had a strong influence on survival: patients without nodal involvement had a 5-year survival of 51%, compared with 32% for patients with N1 disease and 12% for those with N2/N3 disease. CONCLUSIONS: This constitutes one of the largest single-institution reports on carinal resection for bronchogenic carcinoma involving the carina. Morbidity and mortality rates are acceptable. The overall survival including operative mortality is 42%. Positive N2/N3 lymph nodes may be a contraindication to surgery because of poor prognosis.


Assuntos
Carcinoma Broncogênico/mortalidade , Carcinoma Broncogênico/cirurgia , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/cirurgia , Adenocarcinoma/mortalidade , Adenocarcinoma/patologia , Adenocarcinoma/cirurgia , Adolescente , Adulto , Idoso , Carcinoma Broncogênico/patologia , Carcinoma de Células Grandes/mortalidade , Carcinoma de Células Grandes/patologia , Carcinoma de Células Grandes/cirurgia , Carcinoma de Células Escamosas/mortalidade , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/cirurgia , Criança , Feminino , Humanos , Neoplasias Pulmonares/patologia , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento
5.
Int J Radiat Oncol Biol Phys ; 46(4): 927-33, 2000 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-10705015

RESUMO

PURPOSE: With the conventional approach of surgery and postoperative radiotherapy for patients with Masaoka Stage III thymoma, progress has been slow for an improvement in the long-term survival rate over the past 20 years. The objective of this study was to evaluate the pattern of failure and survival after surgery and postoperative radiotherapy in Stage III thymoma and search for a new direction for better therapy outcome. METHODS AND MATERIALS: Between 1975 and 1993, 111 patients with thymoma were treated at Massachusetts General Hospital. Of these, 32 patients were determined to have Masaoka Stage III thymoma. The initial treatment included surgery for clinically resectable disease in 25 patients and preoperative therapy for unresectable disease in 7 patients. Surgical procedure consisted of thymectomy plus resection of involved tissues. For postoperative radiotherapy (n = 23), radiation dose consisted of 45-50 Gy for close resection margins, 54 Gy for microscopically positive resection margins, and 60 Gy for grossly positive margins administered in 1.8 to 2.0 Gy of daily dose fractions, 5 fractions a week, over a period of 5 to 6.6 weeks. In preoperative radiotherapy, a dose of 40 Gy was administered in 2.0 Gy of daily dose fractions, 5 days a week. For patients with large tumor requiring more than 30% of total lung volume included in the target volume (n = 3), a preoperative radiation dose of 30 Gy was administered and an additional dose of 24-30 Gy was given to the tumor bed region after surgery for positive resection margins. RESULTS: Patients with Stage III thymoma accounted for 29% (32/111 patients) of all patients. The median age was 57 years with a range from 27 to 81 years; gender ratio was 10:22 for male to female. The median follow-up time was 6 years. Histologic subtypes included well-differentiated thymic carcinoma in 19 (59%), high-grade carcinoma in 6 (19%), organoid thymoma in 4 (13%), and cortical thymoma in 3 (9%) according to the Marino and Müller-Hermelink classification. The overall survival rates were 71% and 54% at 5 and 10 years, respectively. Ten of the 25 patients who were subjected to surgery as initial treatment were found to have incomplete resection by histopathologic evaluation. The 5- and 10-year survival rates were 86% and 69% for patients (n = 15) with clear resection margins as compared with 28% and 14% for those (n = 10) with incomplete resection margins even after postoperative therapy, p = 0.002. Survival rates at 5 and 10 years were 100% and 67% for those with unresectable disease treated with preoperative radiation (n = 6) and subsequent surgery (n = 3). Recurrence was noted in 12 of 32 patients and 11 of these died of recurrent thymoma. Recurrences at pleura and tumor bed accounted for 77% of all relapses, and all pleural recurrences were observed among the patients who were treated with surgery initially. CONCLUSION: Incomplete resection leads to poor results even with postoperative radiotherapy or chemoradiotherapy in Stage III thymoma. Pleural recurrence is also observed more often among patients treated with surgery first. These findings suggest that preoperative radiotherapy or chemoradiotherapy may result in an increase in survival by improving the rate of complete resection and reducing local and pleural recurrences.


Assuntos
Timoma/radioterapia , Timoma/cirurgia , Neoplasias do Timo/radioterapia , Neoplasias do Timo/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Terapia Combinada , Feminino , Previsões , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Estudos Retrospectivos , Timoma/mortalidade , Neoplasias do Timo/mortalidade , Falha de Tratamento
6.
Accra; s.n; 2000. 5 p. tab.
Não convencional em Espanhol | CUMED | ID: cum-21640

RESUMO

Se realiza un estudio prospectivo, descriptivo y longitudinal sobre la aplicabilidad del Score de Gleason en todos los pacientes con el diagnóstico de adenocarcinoma prostático en el 37 Military Hospital Accra de Ghana en un período de dos años.Esta gradació histológica está basada en el grado de diferenciación glandular y en el modelo de crecimiento del tumor en relación con el estroma, tal como es evaluado en el examen al microscopio con el menor aumento, para la obtención de esta información fueron revisadas las láminas histológicas las cuales fueron coloreadas con la técnica de hematoxilina y oexina, así como las boletas con los datos generales de cada paciente


Assuntos
Humanos , Masculino , Neoplasias da Próstata/história , Neoplasias da Próstata/diagnóstico
7.
J Thorac Cardiovasc Surg ; 118(4): 702-9, 1999 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-10504637

RESUMO

BACKGROUND: The principal feature of bronchoalveolar carcinoma is that it spreads along airways or aerogenously with multifocality, but many issues are unresolved. METHODS: We studied 119 patients with pathologically confirmed bronchoalveolar carcinoma. Symptoms, smoking status, radiologic findings, the size of tumor, operative procedures, and complications were reviewed. We studied the pathologic features: presence or absence of aerogenous spread, patterns of growth, cell type, nuclear grade, mitosis, rate of bronchoalveolar carcinoma in adenocarcinoma, and lymphocyte infiltration. The correlation among clinical, radiologic, and pathologic findings was examined, and the factors affecting survival were analyzed. RESULTS: Symptomatic patients had more infiltrative radiographic features, and asymptomatic patients tended to have more mass-like features (P <.0001). Tumors with radiographically infiltrating lesions tended to have mucinous histologic features (P =.006). Tumors with mass lesions by radiograph tended to have nonmucinous and sclerosing histologic features (P =.003). Aerogenous spread was seen in 94% of specimens. The presence of a variety of cell types suggested multiple clonal origin. The overall survival in those patients undergoing resection was 69.1% at 5 years and 56.5% at 10 years. The significant factors affecting survival were radiologic presence of a mass or infiltrate, pathologic findings of the presence of sclerosis, association with a scar, the rate of bronchoalveolar carcinoma in adenocarcinoma, lymphocyte infiltration grade, nodal involvement, and status of complete resection. Mitosis or nuclear grade of tumor cells did not correlate with survival. CONCLUSIONS: Bronchoalveolar carcinoma showed good overall survival with appropriate surgical procedures. Certain radiologic or pathologic findings correlated with survival. These findings may enhance the ability to predict long-term survival.


Assuntos
Adenocarcinoma Bronquioloalveolar/patologia , Neoplasias Pulmonares/patologia , Adenocarcinoma Bronquioloalveolar/diagnóstico por imagem , Adenocarcinoma Bronquioloalveolar/secundário , Adenocarcinoma Bronquioloalveolar/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Linhagem da Célula , Núcleo Celular/ultraestrutura , Cicatriz/patologia , Feminino , Seguimentos , Previsões , Humanos , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/cirurgia , Linfonodos/patologia , Metástase Linfática , Linfócitos/patologia , Masculino , Pessoa de Meia-Idade , Mitose , Mucinas/análise , Invasividade Neoplásica , Neoplasia Residual/patologia , Pneumonectomia/efeitos adversos , Radiografia , Estudos Retrospectivos , Esclerose , Fumar/efeitos adversos , Taxa de Sobrevida
8.
Eur J Cardiothorac Surg ; 15(4): 456-60, 1999 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-10371121

RESUMO

OBJECTIVE: We sought to identify the long-term prognosis after surgical treatment for primary pulmonary sarcoma. METHODS: Twenty-three patients were retrospectively identified as having been treated surgically for primary pulmonary sarcoma between 1981 and 1996. The records of all patients were reviewed, and the histopathology reexamined by a pathologist. RESULTS: Fifteen patients were male and eight female; their ages ranged from 20 to 78 (mean 51) years. Tumors measured between 0.9 and 12.0 (mean 5.2) cm across the greatest diameter. The histologic diagnoses were malignant fibrous histiocytoma (8, three grade 1 or 2, two grade 3), synovial sarcoma (4), malignant schwannoma (3), leiomyosarcoma (3), and one case each of angiosarcoma, intimal sarcoma, epitheloid hemangioendothelioma, fibrosarcoma and primitive neuroectodermal tumor. Three patients were found to be unresectable. All three underwent radiation and chemotherapy. Lobectomies or bilobectomies were performed in 13 patients including two sleeve resections, one carinal resection, and one chest wall resection. Four patients underwent radical pneumonectomies. Three patients with invasion of the pulmonary artery, pulmonary veins or atrial wall underwent extended resections with the use of cardiopulmonary bypass. In two, a homograft was used to reconstruct the right ventricular outflow tract. Of the resected patients, six had a positive resection margin, and four had at least one positive lymph node in the specimen. Three patients underwent repeat pulmonary resections for recurrences. Eleven patients received postoperative chemotherapy and eight had radiation therapy. Follow-up was available on 22 patients, and ranged from 2 to 183 (mean 48) months; 14 patients are disease free, six died of disease, one died of surgical complications (operative mortality 5%), and two are alive with disease. Actuarial 3- and 5-year survival of the resected patients was 69%. Size and grade were not found to be correlated with significantly increased survival, but completeness of resection was (P<0.05). CONCLUSIONS: Resection of primary pulmonary sarcomas can produce an acceptable survival rate if the resection is complete. Cardiopulmonary bypass can be a useful adjunct when tumors involve a resectable area of the heart or great vessels.


Assuntos
Neoplasias Pulmonares/cirurgia , Sarcoma/cirurgia , Adulto , Idoso , Feminino , Humanos , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/patologia , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Sarcoma/mortalidade , Sarcoma/patologia , Resultado do Tratamento
9.
J Thorac Cardiovasc Surg ; 117(6): 1086-94, 1999 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10343256

RESUMO

OBJECTIVES: Our goal was to assess patient survival and response to treatment for superior sulcus tumors treated with combined radiation therapy and surgery when possible, or with radiation alone when surgery was not possible. METHODS: Seventy-three patients were treated for primary non-small cell carcinoma of the superior pulmonary sulcus. Thirty-four patients received combined resection and irradiation. Thirty-nine patients who had extensive primary disease, distant metastases, or who were medically unfit for surgery were treated with radiation alone. Thirty-one patients (91%) assigned to the resection/irradiation group completed treatment. Combined therapy patients routinely received 40 Gy before the operation, with additional postoperative irradiation based on the surgical findings. RESULTS: Overall survival at 5 years was 19% and disease-specific survival was 20% for all patients. Overall survival and disease-specific survival at 5 years for the resection/irradiation group were 33% and 38%, respectively. Significant indicators of poor prognosis included unresected primary disease, low performance score, T4 stage, or positive node status. Eighty-two percent of the patients who received irradiation alone were treated with palliative intent. Freedom from local-regional progression, achieved initially in 66% of these patients, was associated with a median survival of 8 months. Median survival for 7 patients considered for definitive irradiation was 25 months. During the first 18 months, distant failures occurred in approximately 35% of patients in each treatment group. CONCLUSIONS: Selection of medically fit patients with resectable disease for combined surgery and aggressive radiation therapy resulted in a high likelihood of local control. Overall survival for the resection/irradiation group was significantly poorer for patients with T4 stage, nodal disease, or Horner's syndrome. Distant metastases eventually developed in 56% of patients undergoing resection. Median survival in the resection/irradiation group was significantly prolonged for those patients who could tolerate high-dose radiation treatment.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/terapia , Neoplasias Pulmonares/terapia , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Carcinoma Pulmonar de Células não Pequenas/radioterapia , Carcinoma Pulmonar de Células não Pequenas/cirurgia , Terapia Combinada , Humanos , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/radioterapia , Neoplasias Pulmonares/cirurgia , Pessoa de Meia-Idade , Dosagem Radioterapêutica , Estudos Retrospectivos , Taxa de Sobrevida
10.
Ann Thorac Surg ; 67(2): 313-7; discussion 317-8, 1999 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-10197646

RESUMO

BACKGROUND: Long-segment colon interposition has been used for esophageal replacement for acquired esophageal disease. The indications for use, morbidity, and functional results of these conduits have been debated. METHODS: We reviewed the medical records, office visits, and operative reports of patients undergoing long colon interposition for acquired esophageal disease at our institution from 1956 to 1997. RESULTS: Long colon interposition was performed in 52 patients for caustic injury (n = 20), gastroesophageal disease (n = 16), previous irradiation (n = 8), primary motility disorders (n = 4), and acquired absence of the esophagus (n = 4). From 1976 to 1997, acquired diseases accounted for 62% of long colon interposition. The left colon was used in 46 patients and the right colon in 6. The in-hospital mortality rate was 4%. Early complications included graft ischemia in 5 patients, anastomotic leak in 3, and small bowel obstruction in 1. Late complications included anastomotic stenosis requiring dilation in 26 patients, with 2 requiring surgical revision, and bile reflux requiring surgical diversion in 1 patient. Swallowing function was excellent in 24% of patients, good in 66%, and poor in 10%. CONCLUSIONS: Long colon interposition can be performed safely, with acceptable long-term functional results in patients with acquired esophageal disease.


Assuntos
Colo/transplante , Doenças do Esôfago/cirurgia , Adulto , Anastomose Cirúrgica , Doenças do Esôfago/etiologia , Doenças do Esôfago/mortalidade , Feminino , Seguimentos , Mortalidade Hospitalar , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/mortalidade , Reoperação , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento
12.
J Thorac Cardiovasc Surg ; 117(1): 39-52; discussion 52-3, 1999 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-9869757

RESUMO

OBJECTIVE: Pathologic processes that involve the carina pose a tremendous challenge to thoracic surgeons. Although techniques have been developed to allow primary resection and reconstruction, few institutions have accumulated sufficient experience to allow meaningful conclusions about the indications and the morbidity and mortality rates for this type of surgery. METHODS: Since 1962, 135 patients have undergone 143 carinal resections (134 primary resection, 9 re-resection) at our institution. Indications for carinal resection included bronchogenic cancer (58 patients), other airway neoplasms (60 patients), and benign or inflammatory strictures (16 patients). Thirty-seven patients (28%) had a history of prior lung or airway surgery not involving the carina. Carinal resection without pulmonary resection was accomplished in 52 patients; 57 patients had carinal pneumonectomy (44 right, 13 left); 14 patients had carinal plus lobar resection, and 11 patients had carinal resection after pneumonectomy (9 left, 2 right). There were 15 different modes of reconstruction, based on the type and extent of resection. Techniques were used to reduce anastomotic tension. RESULTS: The operative mortality rate in the 134 patients after primary carinal resection was 12.7%. Adult respiratory distress syndrome was responsible for 9 early deaths. Predominant predictors of operative death included postoperative mechanical ventilation (P =.001), length of resected airway (P =.03), and development of anastomotic complications (P =.04). Mortality rates varied by the type of procedure and the indication for resection. Left carinal pneumonectomy was associated with a high operative mortality rate (31%). Complications were noted in 52 patients (39%), including atrial arrhythmias (20 patients) and pneumonia (11 patients). Anastomotic complications, both early and late, were seen in a total of 23 patients (17%) and resulted in death or surgical reintervention in 21 patients (91%). The operative mortality rate for carinal re-resection was 11.1%. CONCLUSIONS: Carinal resection with primary reconstruction may be accomplished with acceptable mortality rates, but the underlying pathologic process and chance for long-term survival must be carefully considered before the operation is recommended, especially in the case of left carinal pneumonectomy. Anastomotic complications exact a heavy toll on involved patients. Careful patient selection and meticulous anesthetic and surgical technique remain the key to minimizing morbidity and mortality rates.


Assuntos
Carcinoma Broncogênico/cirurgia , Neoplasias Pulmonares/cirurgia , Pneumonectomia , Neoplasias do Sistema Respiratório/cirurgia , Traqueia/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Anastomose Cirúrgica/métodos , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Doenças Respiratórias/cirurgia , Técnicas de Sutura , Resultado do Tratamento
13.
Arch Otolaryngol Head Neck Surg ; 124(1): 98-103, 1998 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-9440789

RESUMO

OBJECTIVE: To introduce a novel surgical technique for the repair of congenital long-segment tracheal stenosis. DESIGN: Retrospective case series. SETTING: Tertiary-care hospital. PATIENTS: Three children ranging in age from 3 months to 3 years, all with complete tracheal rings, the stenotic segments representing between 36% and 49% of the total tracheal length. One patient had an anomalous right upper lobe bronchus and an associated pulmonary artery sling. INTERVENTION: Slide tracheoplasty reconstruction. MAIN OUTCOME MEASURE(S): Postoperative clinical status as evidenced by day and site of extubation, duration of hospitalization, number of bronchoscopic examinations performed before discharge, and subsequent need for urgent bronchoscopic examinations, which reflects the adequacy of the reconstructed airway. RESULTS: Two patients were extubated on the day of surgery, 1 intraoperatively; the child with the pulmonary artery sling required 3 days of elective intubation for postoperative ventilatory support. The duration of hospitalization ranged from 8 to 10 days. All patients underwent elective bronchoscopy once before discharge; none had granuloma formation. Follow-up ranged from 1 to 4 1/2 years. One patient required a single urgent bronchoscopic examination in addition to planned surveillance endoscopy. Growth of the reconstructed hemitracheal rings is demonstrable. CONCLUSIONS: Slide tracheoplasty achieves successful tracheal reconstruction using the patient's own tracheal tissues. Advantages of this method include the potential avoidance of cardiopulmonary bypass, immediate or early postoperative extubation, and the near-complete absence of granulation tissue formation. The latter obviates the need for multiple postoperative bronchoscopic examinations, as has been reported in tracheoplasty procedures using either costal cartilage or pericardium.


Assuntos
Estenose Traqueal/cirurgia , Pré-Escolar , Seguimentos , Humanos , Lactente , Masculino , Procedimentos Cirúrgicos Otorrinolaringológicos/métodos , Tomografia Computadorizada por Raios X , Estenose Traqueal/congênito , Estenose Traqueal/diagnóstico por imagem
14.
Ann Thorac Surg ; 66(6): 1894-902, 1998 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-9930465

RESUMO

BACKGROUND: The adult respiratory distress syndrome (ARDS) developing after pulmonary resection is usually a lethal complication. The etiology of this serious complication remains unknown despite many theories. Intubation, aspiration bronchoscopy, antibiotics, and diuresis have been the mainstays of treatment. Mortality rates from ARDS after pneumonectomy have been reported as high as 90% to 100%. METHODS: In 1991, nitric oxide became clinically available. We instituted an aggressive program to treat patients with ARDS after pulmonary resection. Patients were intubated and treated with standard supportive measures plus inhaled nitric oxide at 10 to 20 parts/million. While being ventilated, all patients had postural changes to improve ventilation/perfusion matching and management of secretions. Systemic steroids were given to half of the patients. RESULTS: Ten consecutive patients after pulmonary resection with severe ARDS (ARDS score = 3.1+/-0.04) were treated. The mean ratio of partial pressure of arterial oxygen to the fraction of inspired oxygen at initiation of treatment was 95+/-13 mm Hg (mean +/- SEM) and improved immediately to 128+/-24 mm Hg, a 31%+/-8% improvement (p<0.05). The ratio improved steadily over the ensuing 96 hours. Chest x-rays improved in all patients and normalized in 8. No adverse reactions to nitric oxide were observed. CONCLUSIONS: We recommend the following treatment regimen for this lethal complication: intubation at the first radiographic sign of ARDS; immediate institution of inhaled nitric oxide (10 to 20 parts per million); aspiration bronchoscopy and postural changes to improve management of secretions and ventilation/perfusion matching; diuresis and antibiotics; and consideration of the addition of intravenous steroid therapy.


Assuntos
Óxido Nítrico/administração & dosagem , Pneumonectomia , Complicações Pós-Operatórias/terapia , Síndrome do Desconforto Respiratório/terapia , Vasodilatadores/administração & dosagem , Administração por Inalação , Estudos de Casos e Controles , Terapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Óxido Nítrico/uso terapêutico , Complicações Pós-Operatórias/diagnóstico , Postura , Síndrome do Desconforto Respiratório/diagnóstico , Síndrome do Desconforto Respiratório/etiologia , Vasodilatadores/uso terapêutico
15.
J Thorac Cardiovasc Surg ; 114(5): 811-5; discussion 816, 1997 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-9375611

RESUMO

OBJECTIVE: Induction chemoradiotherapy followed by surgery may improve survival rates among patients with esophageal carcinoma. We designed a novel intense induction regimen with paclitaxel and high-dose hyperfractionated radiotherapy to maximize complete response rates. METHODS: Forty patients with esophageal cancer were treated in a phase I and II trial of induction chemotherapy (cisplatin, 5-fluorouracil, and paclitaxel) at three dosage levels (75, 125, and 100 mg/m2) and concurrent hyperfractionated radiotherapy (45 Gy to the mediastinum, 58.5 Gy to the tumor). The mean age was 62 years, and 32 patients (80%) had adenocarcinoma. Twenty-eight of 40 (70%) patients had locally advanced tumors (T3, or stage IIB or greater). RESULTS: The average hospitalization for induction treatment was 17 days. Toxicity was substantial, with esophagitis necessitating nutritional support the most common complication. The maximum tolerated dose of paclitaxel was 100 mg/m2. Two patients died during induction treatment. Thirty-six patients (90%) underwent resection. The median length of stay was 10 days, and two patients died after the operation. Fourteen of 36 patients (39%) had a pathologic complete response. Patients who received all prescribed chemotherapy had a higher pathologic complete response rate (50%) than did patients who required dose reduction (17%; p = 0.076). The 2-year survival rate was 61% (95% CI 35% to 86%) with a median follow-up of 11.9 months. CONCLUSIONS: Paclitaxel at a dose of 100 mg/m2 appears to have acceptable toxicity. The high pathologic complete response rate in this regimen is encouraging, but it is associated with substantial toxicity. The toxicity of this regimen is not acceptable and will require substantial reduction in the radiation component. Survival data are too short-term to confirm enhanced survival.


Assuntos
Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/radioterapia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/radioterapia , Neoplasias Esofágicas/tratamento farmacológico , Neoplasias Esofágicas/radioterapia , Paclitaxel/administração & dosagem , Adenocarcinoma/mortalidade , Adenocarcinoma/cirurgia , Carcinoma de Células Escamosas/mortalidade , Carcinoma de Células Escamosas/cirurgia , Cisplatino/administração & dosagem , Fracionamento da Dose de Radiação , Neoplasias Esofágicas/mortalidade , Neoplasias Esofágicas/cirurgia , Esofagite/etiologia , Feminino , Fluoruracila/administração & dosagem , Humanos , Masculino , Pessoa de Meia-Idade , Taxa de Sobrevida
16.
J Thorac Cardiovasc Surg ; 114(3): 367-75, 1997 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-9305189

RESUMO

OBJECTIVES: Our objectives were to delineate the clinicopathologic characteristics of adrenocorticotropin-secreting bronchopulmonary carcinoid tumors causing Cushing's syndrome and to derive from these findings a rational approach to diagnosis and surgical management of this unusual condition. METHODS: We conducted a retrospective, chart-review analysis of seven consecutive patients treated at the Massachusetts General Hospital over a 16-year period. RESULTS: The patients uniformly had symptoms of marked hypercortisolism, and the underlying lung lesions remained clinically occult for a mean of 24 months. Standard endocrine testing was misleading in 83% of patients, reinforcing the need for an alternative diagnostic strategy based on petrosal sinus catheterization and computed tomography of the chest. Although 72% of the tumors were typical carcinoids by standard criteria, 57% demonstrated microscopic evidence of local invasiveness, and 43% were associated with mediastinal lymph node metastases. Eighty-six percent of patients have been cured by pulmonary resection a mean of 59 months after the operation, but 50% of these required a second operation for resection of involved lymph nodes after an initial relapse. CONCLUSIONS: These data suggest that adrenocorticotropin-secreting bronchopulmonary carcinoid tumors represent a distinct, more aggressive subtype of the usual, typical carcinoid. The high rate of lymphatic and local spread demands a surgical approach consisting of anatomic resection and routine mediastinal lymph node dissection.


Assuntos
Síndrome de ACTH Ectópico/etiologia , Tumor Carcinoide/metabolismo , Síndrome de Cushing/etiologia , Neoplasias Pulmonares/metabolismo , Adulto , Algoritmos , Tumor Carcinoide/complicações , Tumor Carcinoide/secundário , Tumor Carcinoide/cirurgia , Feminino , Humanos , Pulmão/patologia , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/cirurgia , Excisão de Linfonodo , Metástase Linfática , Masculino , Pneumonectomia , Reoperação , Estudos Retrospectivos
17.
Ann Thorac Surg ; 64(2): 299-302, 1997 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-9262564

RESUMO

BACKGROUND: Cost containment is a reality in thoracic surgery. Patient care pathways have proved effective in cardiac surgery to reduce length of stay and control costs. METHODS: A multidisciplinary team formulated a pulmonary lobectomy patient care pathway to standardize care, reduce length of stay and costs, and maintain quality. Variance codes were developed to collect data prospectively on reasons for prolonged stay. A patient satisfaction survey was instituted to learn patients' responses to their hospitalization. RESULTS: One hundred forty-seven patients underwent lobectomy in 1995 before institution of the pathway with a mean length of stay of 10.6 days and a mean cost of $16,063. The lobectomy pathway was instituted at the beginning of 1996. One hundred thirty patients underwent lobectomy in 1996 with a mean length of stay of 7.5 days (p = 0.03) and a mean cost of $14,792 (p = 0.47). Readmission and mortality rates were unchanged. Eighty-eight of 130 patients (68%) were able to be discharged by the target length of stay of 7 days in 1996 as opposed to 76 of 147 patients (52%) in 1995. The most common reason for delayed discharge was inadequate pain control. The majority of patients felt prepared for discharge by the seventh postoperative day (70 of 96 patients, 73%). CONCLUSIONS: The institution of a lobectomy patient care pathway appeared to reduce length of stay and costs. The pathway provided a framework to begin systematic quality control measures to enhance patient care.


Assuntos
Procedimentos Clínicos/economia , Pneumonectomia/economia , Garantia da Qualidade dos Cuidados de Saúde , Controle de Custos , Feminino , Custos Hospitalares , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Equipe de Assistência ao Paciente , Readmissão do Paciente , Satisfação do Paciente , Pneumonectomia/mortalidade , Complicações Pós-Operatórias
18.
J Thorac Imaging ; 12(3): 209-11, 1997 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-9249679

RESUMO

This report describes the clinical, radiographic, and surgical findings in a patient with a rare postoperative complication, the postpneumonectomy syndrome. To our knowledge, it is the first reported case of postpneumonectomy syndrome after left pneumonectomy in a patient with a left-sided aortic arch.


Assuntos
Pneumonectomia/efeitos adversos , Complicações Pós-Operatórias , Adulto , Aorta Torácica/anormalidades , Neoplasias Brônquicas/diagnóstico , Neoplasias Brônquicas/cirurgia , Broncoscopia , Feminino , Tumor de Células Granulares/diagnóstico , Tumor de Células Granulares/cirurgia , Humanos , Complicações Pós-Operatórias/diagnóstico por imagem , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/terapia , Síndrome , Tomografia Computadorizada por Raios X
19.
J Clin Oncol ; 15(2): 712-22, 1997 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-9053497

RESUMO

PURPOSE: The main objectives of this study were (a) to ascertain the feasibility and toxicity of preoperative twice-daily radiation therapy and concurrent chemotherapy, surgery, and postoperative therapy in stage IIIA (N2) non-small-cell lung cancer (NSCLC), and (b) to evaluate tumor response, resection rate, pathologic tumor downstaging, and survival. METHODS: Eligibility included biopsy-proven N2 lesion (stage IIIA) by mediastinoscopy, Karnofsky performance score > or = 70, and weight loss less than 5% in the 3 months before diagnosis. The treatment program consisted of two courses of preoperative cisplatin, vinblastine, and fluorouracil (5-FU); 42 Gy concurrent radiation at 1.5 Gy per fraction in two fractions per day; surgery on day 57; and one more course of postoperative chemotherapy and 12 to 18 Gy of concurrent twice-daily radiation. RESULTS: Forty-two patients with stage IIIA (N2) NSCLC (27 men and 15 women, age 38 to 77 years) were enrolled onto this prospective study. Forty of 42 patients tolerated the intended dose (42 Gy) of preoperative radiation and 37 of 39 resected patients received prescribed postoperative radiation. The intended dose of chemotherapy was given in 100%, 70%, and 60% of patients for the first, second, and third courses of chemotherapy. Marked dysphagia that required intravenous hydration was noted in 14% of patients (six of 42). Myelotoxicities included grade > or = 3 granulocytopenia in 23% and thrombocytopenia in 6% of 113 chemotherapy courses. Febrile neutropenia that required hospital admission was noted in 9% of 113 chemotherapy courses. Surgical resection was performed in 93% of patients. Treatment-related mortality was noted in 7% of patients. The overall survival rates by the Kaplan-Meier method were 66%, 37%, and 37% at 2,3, and 5 years, respectively, with a median follow-up time of 48 months. Pathologic examination of the surgical specimen showed a downward shift in tumor extent from stage IIIA (N2) to stage II (N1) in 33%, to stage I (NO) in 24% (10 of 42), and to stage 0 (TONO) in 9.5%, for a total of 67%. The degree of tumor downstaging was also translated into a survival benefit: 5-year survival rates from the time of surgery were 79%, 42%, and 18% for postoperative tumor stages 0 and I, II, and III, respectively (P = .04). CONCLUSION: Concurrent chemoradiotherapy using twice-daily radiation is an effective induction regimen that resulted in 67% tumor downstaging, and an encouraging 37% 5-year survival rate. The degree of tumor downstaging may be a useful intermediate end point for survival benefit in stage IIIA (N2) NSCLC.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma Pulmonar de Células não Pequenas/terapia , Neoplasias Pulmonares/terapia , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma Pulmonar de Células não Pequenas/radioterapia , Carcinoma Pulmonar de Células não Pequenas/cirurgia , Terapia Combinada , Estudos de Viabilidade , Feminino , Humanos , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/radioterapia , Neoplasias Pulmonares/cirurgia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Radioterapia/efeitos adversos , Análise de Sobrevida , Resultado do Tratamento
20.
J Thorac Cardiovasc Surg ; 114(6): 934-8; discussion 938-9, 1997 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-9434688

RESUMO

OBJECTIVE: Our objective was to analyze characteristics and results of redo tracheal resection and reconstruction. METHODS: Seventy-five patients were operated on between 1966 and 1997 after unsuccessful initial repairs for postintubation tracheal stenosis. RESULTS: Sixteen of these patients came from a group of 32 patients with unsuccessful repair among the 450 primary resections and reconstructions performed at our institution. Fifty-nine patients were referred to us after unsuccessful initial repair elsewhere. Initial management was a T-tube or tracheotomy in 39 patients. The length of repeat resection ranged from 1.0 cm to 5.5 cm (mean 3.5 cm). A laryngeal release was used in 19 patients (25%) to reduce anastomotic tension. Complications occurred in 29 patients (39%) and were most frequent in the group requiring laryngeal release (12/19, 63.2%). Overall outcome was good in 59 patients (78.6%) and satisfactory in 10 (13.3%). The repair was unsuccessful in four patients (5.3%), and two patients died (2.6%). CONCLUSIONS: Despite difficulties encountered in reoperative surgery after failed tracheal reconstruction for postintubation stenosis, successful outcome may be achieved in a large number of cases.


Assuntos
Intubação Intratraqueal/efeitos adversos , Traqueia/cirurgia , Estenose Traqueal/etiologia , Estenose Traqueal/cirurgia , Adulto , Anastomose Cirúrgica/métodos , Feminino , Humanos , Masculino , Complicações Pós-Operatórias/epidemiologia , Reoperação , Falha de Tratamento
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