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1.
Ann Surg ; 266(6): 1097-1101, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28045718

RESUMO

: William Francis Rienhoff Jr. was a skilled and innovative surgeon whose career spanned over 4 decades of patient care, clinical investigative research, and surgical education. He was an unforgettable character for those who knew him. Colleagues, coworkers, and friends developed strong and divergent opinions of him. His professional life coincided with the early development of general and thoracic surgery to which he contributed.


Assuntos
Cirurgia Geral/história , História do Século XX , Maryland , Missouri , Cirurgia Torácica/história
2.
J Nucl Med ; 48(2): 207-13, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17268016

RESUMO

UNLABELLED: In the present study, we measured the kinetics and distribution in vivo of the selective delta-opioid antagonist 11C-methylnaltrindole (11C-MeNTI) and the mu-opioid agonist 11C-carfentanil (11C-CFN) in patients with lung carcinoma using PET. METHODS: Paired measurements of 11C-MeNTI and 11C-CFN binding were performed in biopsy-proven small-cell (n = 2), squamous (n = 2), and adenocarcinoma (n = 3) lung cancer patients. Dynamic PET scans of increasing duration (0.5-8 min) were acquired over 90 min after an intravenous bolus injection of 370 MBq of tracer. Time-activity curves for tumor and normal lung parenchyma binding were generated using the region-of-interest (ROI) method. The mean activity at equilibrium was measured, and the specific-to-nonspecific binding ratio (tumor - lung)/lung was calculated. Four of 7 patients underwent an additional static 18F-FDG PET scan for clinical indications. Three of 7 patients underwent surgery, and stained sections of tumor were inspected for inflammation, necrosis, and scar tissue. RESULTS: Increased binding of 11C-MeNTI and 11C-CFN was detected in all tumor types studied. 11C-MeNTI binding in tumor and healthy lung tissue was significantly more intense than that of 11C-CFN. The average specific-to-nonspecific binding ratio across cell types for 11C-MeNTI (4.32 +/- 1.31; mean +/- SEM) was greater than that of 11C-CFN (2.42 +/- 1.17) but lower than that of 18F-FDG (7.74 +/- 0.53). Intravenous naloxone produced 50% and 44% decreases in the specific-to-nonspecific binding ratios of 11C-MeNTI and 11C-CFN, respectively. CONCLUSION: These data provide in vivo evidence for the presence of delta- and mu-opioid receptor types in the 3 major human lung carcinomas and suggest the suitability of 11C-MeNTI and 11C-CFN as investigational probes of lung carcinoma biology.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/diagnóstico por imagem , Carcinoma de Células Pequenas/diagnóstico por imagem , Neoplasias Pulmonares/diagnóstico por imagem , Receptores Opioides delta/metabolismo , Receptores Opioides mu/metabolismo , Adenocarcinoma/diagnóstico por imagem , Adenocarcinoma/cirurgia , Idoso , Carcinoma Pulmonar de Células não Pequenas/cirurgia , Carcinoma de Células Pequenas/cirurgia , Carcinoma de Células Escamosas/diagnóstico por imagem , Carcinoma de Células Escamosas/cirurgia , Corantes , Feminino , Humanos , Inflamação/patologia , Neoplasias Pulmonares/cirurgia , Masculino , Pessoa de Meia-Idade , Naloxona/farmacologia , Antagonistas de Entorpecentes/farmacologia , Necrose , Cintilografia , Compostos Radiofarmacêuticos/farmacocinética , Distribuição Tecidual
3.
Thorac Surg Clin ; 16(1): 11-22, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16696279

RESUMO

A cumulative review of the prevalence of esophageal conduit necrosis is summarized in Table 4. The spectrum of conduit ischemia is broad and includes cases in which there is anastomotic leak or stricture as well as cases in which there is frank graft necrosis. Many of the studies that the authors reviewed do not specify the exact nature of postoperative ischemic complications or how they are defined. Therefore, postoperative conduit ischemia is reported globally. Based on the authors' review, average rates of ischemic complications for stomach, colon, and jejunum are 3.2%, 5.1%, and 4.2%, respectively. Results for colon and jejunum include results for both long- and short-segment grafting. Most reports that compare outcomes using different esophageal conduits demonstrate findings similar to the authors'. Davis and colleagues compared results with colon versus gastric conduit esophageal reconstruction. They found that operative mortality, anastomotic leaks, and conduit ischemia rates were all lower for the stomach than for the colon. Specifically, ischemia of the stomach conduit was 0.5%, compared with 2.4% for the colon conduit. Moorehead and Wong, in a large series of 760 esophagectomy patients in whom the stomach, colon, or jejunum was used for reconstruction, demonstrated that the stomach had the lowest incidence of conduit ischemia (1%), followed by jejunum (11.3%), then colon (13.3%). Some of the factors they identified as correlating with the risk of ischemia include length of conduit, technique of stomach graft preparation, whether anastomosis is in the neck or chest, and route of passage of the conduit. Mansour and colleagues compared their results using bowel interposition (either colon or jejunum) to reconstruct the resected esophagus. The authors report an overall mortality of 5.9%, and 3% conduit ischemia. All ischemia was noted in the colon conduits harvested from the left side. No ischemic complications were noted from jejunal segments. Briel and colleagues compared stomach versus colon conduit use after esophagectomy. They note an overall incidence of ischemia of 9.2%. In their series, the incidence of ischemia for stomach and colon was 10.4% and 7.4%, respectively. Anastomotic leak and stricture rates, both thought to be sequelae of ischemia, also were lower for colon conduit use than for stomach conduit. Multivariate analysis identified patient comorbidities as the only independent risk factor for conduit ischemia. The authors use their findings to support the preferential use of colon conduits rather than stomach conduits. The incidence of colon conduit ischemia (7.4%) is directly in line with all other published results, including the cumulative review by the authors of this article, whereas the rate of stomach conduit ischemia (10.4%) is considerable higher than in most other studies. Esophageal conduit necrosis is an uncommon but disastrous complication of esophageal surgery. Careful selection of patients for surgery, preoperative evaluation of the proposed conduit, and meticulous operative technique are the best defenses against conduit ischemia. Postoperatively, surgeons should have a high index of suspicion for this complication. Unexplained tachycardia, respiratory failure, leukocytosis, or any evidence for graft or anastomotic leak should prompt a search for conduit ischemia. The diagnosis is made by contrast esophagography, endoscopy, or direct operative inspection. There is no documented salvage technique once ischemia is identified. Treatment for mild cases may be supportive, with or without management of anastomotic leak. More severe cases of necrosis require débridement and conduit take-down with proximal esophageal diversion and placement of enteral feeding tubes. Reconstruction can be planned for later if possible. The majority of the data demonstrates that risk of ischemia is related to conduit type, length of conduit, comorbidities, and operative technique. The stomach has the lowest reported incidence of conduit ischemia, followed by the jejunum, and colon. In the future, methods to predict conduit ischemia more accurately at the time of surgery may further reduce the incidence of this disastrous complication.


Assuntos
Colo/patologia , Esofagectomia/efeitos adversos , Jejuno/patologia , Estômago/patologia , Anastomose Cirúrgica/efeitos adversos , Anastomose Cirúrgica/métodos , Colo/irrigação sanguínea , Colo/transplante , Humanos , Isquemia/diagnóstico , Isquemia/etiologia , Isquemia/prevenção & controle , Jejuno/irrigação sanguínea , Jejuno/transplante , Necrose/diagnóstico , Necrose/etiologia , Necrose/prevenção & controle , Estômago/transplante
4.
J Surg Educ ; 73(3): 544-7, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26896146

RESUMO

INTRODUCTION: We reviewed the first 100 years of presidential addresses delivered at the fall congress of the American College of Surgeons (ACS). Our hypothesis was that these addresses would be an excellent indicator of the College's position on surgical policy, ethics, methods, and education. METHODS: All ACS presidential addresses from 1913 to 2013 were identified through the ACS archives website. This included the presenter, title, year, and citation if published in a peer reviewed journal. The text of each address was obtained from the ACS archives, or from the listed citations. Addresses were then classified into 1 of 6 subgroups based on content-surgical credo, medical innovation, medical education, surgical history, business and legal, and personal tribute. The 100-year period was divided into 5 interval each of 20-year and the frequency of each category was graphed over time. RESULTS: There were 111 ACS presidential addresses delivered in the study period. Distribution by category was surgical credo (57%), surgical history (14%), medical innovation (10%), medical education (8%), business and legal (6%), and personal tributes (5%). The frequency of surgical credo has remained stable over time. Business and legal emerged as a new category in 1975. The other topics had low, but stable frequency. CONCLUSION: ACS presidential addresses do reflect the College's position on surgical policy and practice. The college has remained consistent in serving its members, maintaining, and defining the role of its organization, the qualifications for membership, and the expectations for the professional conduct of its members.


Assuntos
Cirurgia Geral/história , Sociedades Médicas/história , Congressos como Assunto/história , História do Século XX , História do Século XXI , Humanos , Estados Unidos
5.
Case Rep Orthop ; 2016: 5463514, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27555975

RESUMO

Axillary artery injury has been associated with shoulder dislocation and surgery. We describe a case of delayed axillary artery occlusion after reverse total shoulder arthroplasty. The injury was confirmed by Doppler and angiography and was treated with angioplasty and stenting. Early recognition and treatment of this injury are mandatory for patients' recovery.

6.
Clin Cancer Res ; 9(17): 6461-8, 2003 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-14695149

RESUMO

PURPOSE: Despite the availability of cellular markers associated with cell cycle, apoptosis, and DNA repair, predictive factors for pathological complete response (CR) and overall survival (OS) are few in patients with locally advanced esophageal cancer. This study evaluates the role of clinical and cellular markers in predicting CR and OS in patients with esophageal cancer. EXPERIMENTAL DESIGN: Patients were treated with infusional cisplatin and 5-fluorouracil combined with daily radiotherapy followed by esophagectomy. Pretreatment tumors (n = 54) were analyzed for epidermal growth factor receptor (EGF-R), bax, and bcl-2 expression by immunohistochemistry and for p53 mutations by direct DNA sequencing of exons 5-8. Clinical covariates included patients' age at enrollment; gender; Barrett's metaplasia; and tumor location, histology, and differentiation. Logistic regression and survival analyses were used to evaluate the predictors. RESULTS: Age ranged from 32 to 75 years; most patients were male (45 male; 9 female); and tumors were distal (47 distal; 7 mid), adenocarcinoma (41 adenocarcinomas; 13 squamous cell carcinomas), and moderately differentiated (33 moderate; 6 well; 15 poor). Female gender predicted CR (odds ratio 7.5; 95% confidence interval, 1.4-41). The OS was 43% at 5 years. Presence of CR (P < 0.001 log rank) and p53 mutation (P = 0.051 log rank) correlated with increased OS, whereas increased EGF-R expression predicted poor OS (P = 0.009 log rank). EGF-R remained significant when adjusted for clinical covariates. There was a trend toward increased OS related to better tumor differentiation and decreased bcl-2. CONCLUSIONS: These data suggest that EGF-R and p53 mutation may be used as both outcome predictors and targets for molecular therapy for esophageal cancer.


Assuntos
Receptores ErbB/biossíntese , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/terapia , Genes p53 , Mutação , Adenocarcinoma/metabolismo , Idoso , Cisplatino/uso terapêutico , Terapia Combinada , Análise Mutacional de DNA , Intervalo Livre de Doença , Neoplasias Esofágicas/mortalidade , Feminino , Fluoruracila/uso terapêutico , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Proteínas Proto-Oncogênicas/metabolismo , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Análise de Regressão , Fatores de Tempo , Resultado do Tratamento , Proteína X Associada a bcl-2
7.
Clin Cancer Res ; 9(8): 2912-9, 2003 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-12912936

RESUMO

PURPOSE: We investigated aberrant methylation patterns in esophageal adenocarcinoma and correlated the findings to patient survival and tumor recurrence. EXPERIMENTAL DESIGN: Gene promoter methylation was performed in 82 samples from 41 esophagectomy patients consisting of 41 adenocarcinoma samples, each with its adjacent nonmalignant tissue, which included one sample with Barretts metaplasia. The methylation status of seven genes was determined. Epigenetic silencing was confirmed using immunohistochemical staining. Kaplan-Meier plots were constructed using disease-specific survival as the primary end point and the interval from surgery to tumor recurrence as the secondary end point. The association of clinicopathological and biomolecular risk factors to survival and recurrence was performed using the Log-rank test and Cox proportional hazards model for multivariate analysis. RESULTS: Methylation frequencies of the genes analyzed were APC, 68%; E-cadherin, 66%; O(6)-methylguanine DNA methyltransferase, 56%; ER, 51%; p16, 39%; DAP-kinase, 19%; and TIMP3, 19%. DNA methylation of some genes individually showed only trends toward diminished survival, whereas patients whose tumors had >50% of their gene profile methylated had both significantly poorer survival (P = 0.04) and earlier tumor recurrence (P = 0.05) than those without positive methylation. By multivariate analysis, the hazard ratios (HRs) with positive methylation status were more powerful predictors of survival [HR 2.7 (1.14-6.45; 95% confidence interval)] and tumor recurrence [HR 2.5 (1.11-5.6)] than age (HR 2.03 and 1.96, respectively) or stage (HR 1.48 and 1.67, respectively). CONCLUSIONS: Our data suggest that positive methylation status for multiple genes in esophageal adenocarcinoma is a predictor of poor prognosis.


Assuntos
Adenocarcinoma/genética , Metilação de DNA , Neoplasias Esofágicas/genética , Regiões Promotoras Genéticas , Adenocarcinoma/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Ilhas de CpG , DNA/química , Neoplasias Esofágicas/mortalidade , Feminino , Inativação Gênica , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Reação em Cadeia da Polimerase , Prognóstico , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento
8.
World J Clin Cases ; 3(5): 457-61, 2015 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-25984520

RESUMO

Colorectal lipomas are the second most common benign tumors of the colon. These masses are typically incidental findings with over 94% being asymptomatic. Symptoms-classically abdominal pain, bleeding per rectum and alterations in bowel habits-may arise when lipomas become larger than 2 cm in size. Colonic lipomas are most often noted incidentally by colonoscopy. They may also be identified by abdominal imaging such as computed tomography or magnetic resonance imaging. We report a case of a sixty-one years old male who presented to our emergency room with a 6.7 cm × 6.3 cm soft tissue mucosal mass protruding transanally. The patient was stable with a benign abdominal examination. The mass was initially thought to be a rectal prolapse; however, a limited digital rectal exam was able to identify this as distinct from the anal canal. Since the mass was irreducible, it was elected to be resected under anesthesia. At surgery, manipulation of the mass identified that the lesion was pedunculated with a long and thickened stalk. A laparoscopic linear cutting stapler was used to resect the mass at its stalk. Pathology showed a polypoid submucosal lipoma of the colon with overlying ulceration and necrosis. We report this case to highlight this rare but possible presentation of colonic lipomas; an incarcerated, trans-anal mass with features suggesting rectal prolapse. Trans-anal resection is simple and effective treatment.

9.
Chest ; 121(1): 296-7, 2002 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11796470

RESUMO

We report a case of a 32-year-old woman who, after passage of broncholiths, developed a mediastinal abscess that required surgical drainage for treatment. Previously reported infectious complications resulting from broncholiths include obstructive pneumonitis and recurrent aspiration pneumonitis secondary to bronchoesophageal fistulas. Because radiographic evidence of abnormal calcification in the chest is common, but rarely is associated with broncholithiasis, the patient's history of lithoptysis was crucial to determining the underlying etiology of her abscess.


Assuntos
Broncopatias/diagnóstico por imagem , Cálculos/diagnóstico por imagem , Infecções por Haemophilus/diagnóstico por imagem , Haemophilus influenzae , Abscesso Pulmonar/diagnóstico por imagem , Mediastinite/diagnóstico por imagem , Adulto , Broncopatias/cirurgia , Cálculos/cirurgia , Feminino , Infecções por Haemophilus/cirurgia , Humanos , Abscesso Pulmonar/cirurgia , Mediastinite/cirurgia , Tomografia Computadorizada por Raios X
10.
J Thorac Cardiovasc Surg ; 123(3): 466-73; discussion 473-4, 2002 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-11882817

RESUMO

OBJECTIVES: Routine histologic examination of resected lymph nodes in patients with stage I non-small cell lung cancer may underestimate the incidence of advanced disease. The presence of occult lymph node metastases may predict a higher risk of recurrence after intended curative resection. The purpose of this study was to determine the prognostic significance of TP53 and K-ras mutations in histologically determined negative lymph nodes from patients with stage I non-small cell lung cancer who underwent intended curative surgical resection. METHODS: Between July 1995 and March 1998, clinical data and tissue samples of primary tumors and lymph nodes were collected in a prospective fashion from 102 patients undergoing resection for non-small cell lung cancer (stage I, n = 55; stage II, n = 32; stage IIIA, n = 15). TP53 and K-ras mutations were detected by direct sequencing. If molecular alterations were found in the primary tumor, the corresponding lymph nodes were examined for these same TP53 (by oligonucleotide hybridization) and K-ras (by allele-specific ligation) mutations. RESULTS: TP53 mutations were found in 47 of 94 primary tumors (50%), and K-ras mutations were present in 26 of 55 adenocarcinomas (47%). A total of 134 lymph nodes from 32 patients with stage I disease were analyzed. In 9 cases (28%) the same TP53 or K-ras mutations were found in tumor and lymph node specimens, suggesting occult metastasis. On the basis of nodal location, 7 patients had their disease upstaged by a single stage and 2 patients by two stages. All 28 patients with stage II or III disease had pathologically determined positive nodes that were confirmed as positive by molecular analysis. Standard histopathologic assessment of regional lymph nodes failed to detect metastases at levels below 0.9% tumor-specific mutant TP53 clones per node. No statistically significant difference in disease-specific or overall survival was observed between patients with stage I disease with and without molecular lymph node metastases. CONCLUSIONS: Occult lymph node metastases are present in a significant percentage of patients with stage I non-small cell lung cancer. These data suggest that molecular analysis allows a more accurate assessment of staging. However, larger studies are needed to determine the clinical role of molecular staging.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/patologia , Neoplasias Pulmonares/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Feminino , Genes p53/genética , Genes ras/genética , Humanos , Neoplasias Pulmonares/mortalidade , Linfonodos/patologia , Metástase Linfática/diagnóstico , Masculino , Pessoa de Meia-Idade , Mutação , Estadiamento de Neoplasias , Prognóstico , Estudos Prospectivos , Análise de Sobrevida
11.
Ann Thorac Surg ; 74(1): 227-31; discussion 231, 2002 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-12118764

RESUMO

BACKGROUND: Data suggest that preoperative chemoradiation improves survival in patients with stage II and III esophageal tumors. Whether preoperative therapy increases postesophagectomy morbidity and mortality has not been determined. This study evaluates our postoperative results after chemoradiation therapy. METHODS: From 1989 through 1998, 120 consecutive patients underwent chemoradiation therapy followed by esophagectomy at our institution. The medical records for these patients were reviewed to determine patient age, sex, race, cell type, operative technique, complications, deaths, and length of hospital stay (LOS). RESULTS: There were 106 (88%) men and 14 (12%) women with a mean age of 58 (32 to 77) years. White patients predominated (114 of 120, 95%); 98 (82%) had adenocarcinoma and 22 (18%) had squamous cell carcinoma. Operative technique was transhiatal in 91 (76%) patients, three-incision in 23 (19%), Ivor-Lewis in 4 (3%), and thoracoabdominal in 2 (2%). There was 1 death. Complications developed in 44 (37%) patients; 59% (13 of 22) of squamous cell carcinoma patients and 32% (31 of 98) of adenocarcinoma patients developed complications. Respiratory complications occurred in 32% (7 of 22) of squamous cell carcinoma patients and in 3% (3 of 98) of adenocarcinoma patients. Mean length of stay after surgery was 15 days (range 7 to 163). CONCLUSIONS: Postesophagectomy results after chemoradiation therapy are comparable to those reported after esophagectomy alone. Squamous cell carcinoma patients are nearly twice as likely to develop postoperative complications and are more likely to have respiratory complications than adenocarcinoma patients.


Assuntos
Adenocarcinoma/mortalidade , Adenocarcinoma/cirurgia , Carcinoma de Células Escamosas/mortalidade , Carcinoma de Células Escamosas/cirurgia , Neoplasias Esofágicas/mortalidade , Neoplasias Esofágicas/cirurgia , Esofagectomia , Adenocarcinoma/complicações , Adenocarcinoma/terapia , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Escamosas/complicações , Carcinoma de Células Escamosas/terapia , Quimioterapia Adjuvante , Fracionamento da Dose de Radiação , Neoplasias Esofágicas/complicações , Neoplasias Esofágicas/terapia , Esofagectomia/mortalidade , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Morbidade , Complicações Pós-Operatórias , Estudos Prospectivos , Radioterapia Adjuvante
12.
J Gastrointest Surg ; 7(2): 164-70; discussion 170-1, 2003 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-12600440

RESUMO

We updated our surgical results and long-term outcome for prophylactic esophagectomy in patients with Barrett's esophagus and high-grade dysplasia (HGD) and determined the incidence of occult adenocarcinoma. Sixty consecutive patients with HGD who underwent esophagectomy had pre- and postoperative pathology examined at our institution from 1982 to 2001. We reviewed medical records to determine patient characteristics, surgical approach, operative morbidity and mortality, pathology, and length of stay. Patients and/or referring physicians were contacted to determine long-term outcome. Fifty-three men (88%) and 7 women (12%) were followed up for a median of 4.6 years. Transhiatal esophagectomy was performed in the majority of patients (82%). There was one operative death (1.7%) and 15 complications (29%). Median length of stay was 9 days. In 18 patients (30%), invasive adenocarcinoma was detected in the resected specimen. When examined by time periods, 43% (13/30) of patients were diagnosed with occult cancer from 1982-1994, whereas 17% (5/30) harbored occult malignancy from 1994-2001. All patients with adenocarcinoma in the recent interval had stage I disease, as opposed to only 61.5% of patients from the earlier study. Operative mortality declined from 3.3% to 0% over the two intervals as did mean length of stay from 14 days to 10 days. Five-year survival was excellent at 88%. Age and amount of preoperative weight loss were preoperative predictors of survival, whereas major postoperative complications and stage were postoperative predictors of outcome. Barrett's esophagus with high-grade dysplasia continues to be an indication for prophylactic esophagectomy. Overall prevalence of occult adenocarcinoma remains high. We have demonstrated a declining incidence of occult cancer and treatment of earlier stage adenocarcinoma when found in this population of patients treated with esophagectomy.


Assuntos
Adenocarcinoma/prevenção & controle , Esôfago de Barrett/patologia , Esôfago de Barrett/cirurgia , Neoplasias Esofágicas/prevenção & controle , Lesões Pré-Cancerosas/patologia , Adenocarcinoma/epidemiologia , Idoso , Anastomose Cirúrgica , Esôfago de Barrett/mortalidade , Biópsia por Agulha , Estudos de Casos e Controles , Neoplasias Esofágicas/epidemiologia , Esofagectomia/métodos , Feminino , Seguimentos , Humanos , Incidência , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Prevenção Primária/métodos , Probabilidade , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Medição de Risco , Estatísticas não Paramétricas , Taxa de Sobrevida , Fatores de Tempo , Resultado do Tratamento
13.
Curr Surg ; 59(3): 336-41, 2002.
Artigo em Inglês | MEDLINE | ID: mdl-16093160

RESUMO

PURPOSE: Neoplastic polyps are common in the colon, but not elsewhere in the gastrointestinal tract. They are rare at the gastroesophageal junction, especially associated with Barrett's dysplasia or adenocarcinoma. We identify a subset of early esophageal adenocarcinomas that present as symptomatic polyps with gastrointestinal bleeding, reflux, and even dysphagia. Because little is known about polypoid esophageal adenocarcinomas, we examine the clinical presentation, pathological features, and postoperative outcomes of these lesions. METHODS: We defined esophageal polyps as macroscopic, well-demarcated projections above the mucosa that project the greater percentage of their mass into the lumen without central ulceration. From a consecutive series of 400 patients who underwent esophagectomies for adenocarcinoma (1988 to 2000), 14 (4%) had polyps on presentation. Clinical records, pathology reports, photographs, and original slides of these resected specimens were reviewed. RESULTS: All patients with polyps had early staged esophageal adenocarcinomas. Lymph node involvement was found in only 4 patients, and no patients with distant metastases were found. All but 1 patient (13 of 14; 93%) were symptomatic at diagnosis. Most presented either with gastrointestinal bleeding or gastroesophageal reflux (11 of 14; 79%). Only 2 patients complained of mild dysphagia, and mean weight loss of the series was minimal at 1.3 +/- 4.0 kg (range, 0 to 15 kg). Barrett's was present in 10 patients (71%), and in 80% of these cases, high-grade dysplasia was found. The polyps were small 3.4 +/- 1.1 cm, and most contained poorly differentiated adenocarcinomas. No postoperative mortalities occurred, and follow-up was complete at 100%. Actuarial 2-year survival was 88%, with a mean survival of 61.3 months. Recurrent disease was identified in 4 patients. CONCLUSIONS: Polypoid adenocarcinomas of the distal esophagus are a subset of esophageal cancer that produce clear symptoms at an early tumor stage, which allows prompt detection and favorable prognosis. Their pathological features and demographics suggest an origin via the Barrett's esophagus-dysplasia-carcinoma sequence.

14.
J Surg Educ ; 68(3): 213-7, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21481807

RESUMO

INTRODUCTION: A once-a-year, week-long surgical missionary trip to Haiti has become incorporated into our residency experience on a voluntary basis since 2007. The purpose of this article is to describe our experience with this mission effort during the last 4 years. METHODS: Since 2007, at least one PGY 3-5 surgical resident from our program has traveled to the Hôpital Sacré Coeur in Milot, Haiti for a voluntary, week-long surgical mission working with the local health care providers. Their personal and clinical experiences in Haiti, in the surgical clinics, and in the operating room, were recorded. RESULTS: Since 2007, 6 surgical residents and members of the surgical staff have traveled to Haiti for this surgical mission. During that time, a total of 247 patients were observed in the clinic and 184 surgical cases were performed. The case distribution covered a wide range of defined categories, including head and neck, breast, hernia, abdominal, biliary, stomach, small and large bowel, colorectal, skin and soft tissue, and urology. The personal aspect of this experience could not be quantitated but was profound. CONCLUSIONS: We feel that the surgical missionary trip to Haiti is an asset to our program. It provides humanitarian surgical care to patients in need, teaching and infrastructure support to the local health care providers, a clinical and operative experience to our residents, and an invaluable personal experience.


Assuntos
Cirurgia Geral/educação , Internato e Residência , Missões Médicas , Haiti , Humanos , Missionários , Socorro em Desastres , Serviços de Saúde Rural
15.
J Thorac Cardiovasc Surg ; 138(6): 1309-17, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19931663

RESUMO

OBJECTIVE: We hypothesized that most relapses in patients with esophageal cancer having neoadjuvant chemoradiation therapy would occur outside of the surgical and radiation fields. METHODS: Recurrence patterns, time to recurrence, and median survival were examined in 267 patients who had esophagectomy after neoadjuvant chemoradiation therapy at Johns Hopkins over 19 years. RESULTS: Of 267 patients, 82 (30.7%) showed complete response to neoadjuvant therapy, with 108 (40.4%) and 77 (28.8%) showing partial response or no response, respectively. Recurrence developed in 84 patients (patients with complete response 18/82, 21.4%; patients with partial response 39/108, 36.1%; patients with no response 27/77, 35.1%; P = .055, respectively). Most patients had recurrences at distant sites (65/84;77.4%) regardless of pathologic response, and subsequent survival was brief (median 8.37 months). Median disease-free survival was short (10 months) and did not differ based on recurrence site for patients with partial response or no response, but was longer for patients with complete response with distant recurrence, whose median disease-free survival was 27.3 months (P = .008). By multivariate analysis, no other factor except for pathologic response to neoadjuvant therapy was associated with disease recurrence or death. Patients with partial response or no response were 1.97 and 2.23 times more likely to have recurrence than patients with complete response (P = .024 and P = .012, respectively). CONCLUSIONS: Most esophageal cancer recurrences after neoadjuvant therapy and surgery are distant, and survival time after recurrence is short regardless of pathologic response. Fewer patients achieving complete response had recurrences, and distant recurrences in these patients manifest later than in patients showing partial response and those showing no response. Only pathologic response is significantly associated with disease recurrence, suggesting that tumor biology and chemosensitivity are critical in long-term patient outcome.


Assuntos
Neoplasias Esofágicas/patologia , Neoplasias Esofágicas/terapia , Esofagectomia , Terapia Neoadjuvante , Idoso , Intervalo Livre de Doença , Neoplasias Esofágicas/tratamento farmacológico , Neoplasias Esofágicas/radioterapia , Neoplasias Esofágicas/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Recidiva Local de Neoplasia
17.
J Surg Educ ; 65(2): 162-5, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18439543

RESUMO

Community-based surgical training centers comprise almost half of the current ACGME-approved programs. Yet the histories of these community hospital programs have not been defined clearly. University programs were founded with the time-honored mission to deliver patient care, teaching, and research. We feel that early community programs developed with close ties to university programs before diverging in their evolution. As successful university faculty expanded their elective surgical practice, they often admitted patients to private hospitals, most in close proximity to their university hospitals. Many surgeons maintained joint appointments on the university and private hospital staffs, whereas others left the university staff to focus their efforts on their clinical practice. The more prominent clinicians continued to attract students interested in apprenticeships in surgery; and community based training programs developed that focused primarily on patient care and teaching. We review the history of our program that we feel illustrates this process.


Assuntos
Educação Médica/história , Cirurgia Geral/história , Hospitais Comunitários/história , Baltimore , Cirurgia Geral/educação , História do Século XIX , História do Século XX , História do Século XXI , Humanos , Internato e Residência
18.
Ann Thorac Surg ; 85(2): 678-80, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18222303

RESUMO

Surgical management of patients with compromised lung function remains a challenge. We describe a technique that uses a partial sternotomy to manage high-risk patients with clinical stage 1 apical lung tumors. In our experience with four patients we found this method to be effective, quick, safe, and with good short term outcome.


Assuntos
Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/cirurgia , Pneumonectomia/métodos , Esterno/cirurgia , Idoso , Idoso de 80 Anos ou mais , Feminino , Seguimentos , Humanos , Neoplasias Pulmonares/mortalidade , Masculino , Estadiamento de Neoplasias , Testes de Função Respiratória , Medição de Risco , Análise de Sobrevida , Resultado do Tratamento
19.
Ann Thorac Surg ; 85(5): 1766-70, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18442581

RESUMO

BACKGROUND: Intercostal neuralgia due to surgical injury of the intercostal nerve is difficult to treat. No treatment modality has given effective pain relief. Experience with other painful neuromas has demonstrated that neuroma resection and muscle implantation has been effective in the upper and lower extremities. This approach was applied to patients with intercostal neuralgia. METHODS: A retrospective review was done of 5 consecutive patients who have had neurectomy of one or more intercostal nerves. Preoperative and postoperative pain levels, patient demographics, length of follow-up, and surgical technique were reviewed. RESULTS: Average patient age was 51.0 years (range, 39.2 to 61.3). Patients presented an average of 42.8 months (range, 10 to 138) after the surgical procedure or trauma that created their painful intercostal neuromas. The mean maximum pain level was 10, and the mean average pain level was 8 (range, 7 to 9). Postoperatively, the mean maximum pain level was 3.4 (range, 0 to 9), and the mean average pain level was 2.2 (range, 0 to 7). The differences were significant: p less than 0.01 for maximum pain level and p less than 0.05 for average pain level. Average follow-up after surgery was 8.8 months (range, 6.5 to 10.9). The most common surgical technique used was intercostal nerve neurectomy proximal to the intercostal nerve neuroma and implantation of the cut nerve into the latissimus dorsi muscle. CONCLUSIONS: Intercostal neurectomy and implantation of the cut nerve into the latissimus dorsi or into the rib for severe intercostal neuralgia was an efficacious treatment in this small consecutive patient series.


Assuntos
Nervos Intercostais/lesões , Neuralgia/cirurgia , Neuroma/cirurgia , Neoplasias do Sistema Nervoso Periférico/cirurgia , Complicações Pós-Operatórias/cirurgia , Adulto , Feminino , Seguimentos , Humanos , Nervos Intercostais/cirurgia , Masculino , Pessoa de Meia-Idade , Músculo Esquelético/cirurgia , Medição da Dor , Reoperação , Costelas/cirurgia
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