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Biomedical subjects

Enrico Ruffini

Publications and source records attributed to Enrico Ruffini.

28 records · Page 2Linked to original sources

Stage I non-small cell lung carcinoma: really an early stage?

OBJECTIVE: We review our results on surgical treatment of patients with stage I non-small cell lung carcinoma and we attempted to clarify the prognostic significance of some surgical--pathologic variables. METHODS: From 1993 to 1999, 667 patients received curative lung resection and complete hilar and mediastinal lymphadenectomy for non-small cell lung cancer. Of these, there were 436 Stage I disease (65%), of whom 144 T1N0 and 292 T2N0. No patients had pre- or postoperative radio- or chemotherapy. Prognostic significance of the following independent variables was tested using univariate (log-rank) and multivariate (Cox proportional-hazards) analysis: type of resection (sublobar vs lobectomy vs pneumonectomy), histology (squamous cell vs adenocarcinoma), tumour size ( 3cm), histologic vascular invasion, visceral pleura involvement, positive bronchial resection margin, general T status. RESULTS: Overall 5-year survival was 63%. In both univariate and multivariate survival analysis, significant prognostic factors were histology (adenocarcinoma 65% vs squamous cell carcinoma 51%), tumour size ( 3cm 46%), and the presence of negative resection margin. Five-year survival by general T status was 66% in T1N0 vs 55% in T2N0 disease (P=0.19). CONCLUSIONS: Despite advances in early diagnosis and surgical technique, 5-year survival of stage I non-small cell lung carcinoma remains low as compared to survival of other solid organ neoplasm. Tumour size <or=3cm, adenocarcinoma histologic type and negative bronchial resection margins were associated with a more favourable outcome in our patient population. More effective multimodality treatments are needed to increase survival rates.

Carcinoma, Non-Small-Cell Lung↗

The significance of intraoperative pleural effusion during surgery for bronchogenic carcinoma.

OBJECTIVES: To analyze patients submitted to thoracotomy for lung carcinoma presenting with an intraoperative pleural effusion (PE). METHODS: From 1993 to 1999, 1279 patients received thoracotomy with curative intent for primary lung carcinoma. Intraoperatively, 52 patients (4%) presented a PE >100ml which was not diagnosed preoperatively. Of these, seven patients had received preoperative transthoracic fine-needle biopsy FNB and were excluded from the analysis. In the remaining 45 patients pleural fluid cytology was undertaken. In patients with cytology-negative PE, clinico-pathologic characteristics including intratumoral vascular invasion, intratumoral perineural invasion, peritumoral lymphocytic infiltrate, visceral, parietal and mediastinal pleural involvement, pTNM and survival were analyzed and compared with our total population of lung cancer patients operated on during the same period. RESULTS: The mean amount of collected fluid was 210ml (100-450ml). Of the 45 patients with intraoperative PE, 16 (35%) received exploratory thoracotomy because of pleural carcinosis or major involvement of mediastinal structures; eight (18%) received resection of the tumor, although the cytologic examination of the pleural fluid eventually resulted positive for neoplastic cells. Median survival for the two groups was 6 and 9 months, respectively. Twenty-one patients (47%) received resection of the tumor with a cytology-negative pleural fluid. In this group, analysis of clinico-pathologic characteristics revealed that squamous cell type and mediastinal pleural involvement were significantly associated with the presence of intraoperative PE (P=0.01 and P=0.05, respectively); 3- and 5-year survivals of this group were similar to those observed in our total population of resected lung cancer patients (68 and 56% vs. 54 and 42%, P=0.27). CONCLUSIONS: The presence of a PE at thoracotomy during surgery for lung carcinoma is an infrequent occurrence. In more than 50% of the cases cytology is positive and prognosis is poor. In the remaining cases, however, cytology is negative and the PE should be considered as reactive; in these patients a curative resection can be accomplished with an anticipated chance of long-term survival.

Carcinoma, Bronchogenic↗

Long-term survival of atypical bronchial carcinoids with liver metastases, treated with octreotide.

OBJECTIVE: To demonstrate that liver metastases by radically resected atypical carcinoids of the lung can be effectively treated by new somatostatin analogs. METHODS: Between January 1977 and December 1999, 126 patients affected by bronchial carcinoids were submitted to a radical resection of the lung. Seven of them (5.5%) presented liver metastases 27, 22, 14, 18, 16, 12 and 9 months after surgery: carcinoid syndrome (CS) was ever present. 111In-DTPA-pentetreotide scintigraphy (Octreoscan) and ultrasound guided biopsy were performed in all cases, and the presence of somatostatin receptors sst2 was demonstrated by polymerase chain reaction (PCR) method. RESULTS: Five patients refused the proposed chemotherapy, and liver alcoholization was not feasible. Octreotide was administered at the dose of 1500 microg/daily subcutaneously. CS was controlled and also high urinary 5-hydroxyindoleacetic acid values returned to normal after a median of 7 days (range 4-10 days) of medical treatment. No important side effects were registered, and a good quality of life was observed. The patients are alive and well at 51, 36, 24, 24, 23, 19, and 16 months after the diagnosis of the metastases, respectively. In two cases ultrasounds revealed the reduction and in one case the complete resolution of the liver lesion. CONCLUSIONS: Octreotide is effective in controlling symptoms of CS of patients with liver metastases of resected atypical bronchial carcinoid. The efficacy of the drug is due to the presence of sst2 somatostatin receptors in the pathologic tissue, as demonstrated by PCR method. The positivity to Octreoscan depends on the presence of the same receptors. Octreoscan may be used in the follow-up of these neuroendocrine neoplasms of the lung. A positivity to Octreoscan is predictive for an effective therapy with octreotide.

Aged↗

Pulmonary resection for metastases from colorectal cancer: factors influencing prognosis. Twenty-year experience.

OBJECTIVE: We reviewed our experience in the surgical management of 80 patients with colorectal pulmonary metastases and investigated factors affecting survival. MATERIAL AND METHODS: From January 1980 to December 2000, 80 patients, 43 women and 37 men with median age 63 years (range 38-79 years) underwent 98 open surgical procedure (96 muscle-sparing thoracotomy, one clamshell and one median sternotomy) for pulmonary metastases from colorectal cancer (three pneumonectomy, 17 lobectomy, seven lobectomy plus wedge resection, six segmentectomy, three segmentectomy plus wedge resection and 62 wedge resection). Pulmonary metastases were identified at a median interval of 37.5 months (range 0-167) from primary colorectal resection. Second and third resections for recurrent metastases were done in seven and in four patients, respectively. RESULTS: Operative mortality rate was 2%. Overall, 5-year survival was 41.1%. Five-year survival was 43.6% for patients submitted to single metastasectomy and 34% for those submitted to multiple ones. Five-year survival was 55% for patients with disease-free interval (DFI) of 36 months or more, 38% for those with DFI of 0-11 months and 22.6% for those with DFI of 12-35 months (P=0.04). Five-year survival was 58.2% for patients with normal preoperative carcino-embryonic antigen (CEA) levels and 0% for those with pathologic ones (P=0.0001). Patients submitted to second-stage operation for recurrent local disease had 5-year survival rate of 50 vs. 41.1% of those submitted to single resection (P=0.326). CONCLUSIONS: Pulmonary resection for metastases from colorectal cancer may help survival in selected patients. Single metastasis, DFI>36 months, normal preoperative CEA levels are important prognostic factors. When feasible, re-operation is a safe procedure with satisfactory long-term results.

Adult↗

Lung tumors with mixed histologic pattern. Clinico-pathologic characteristics and prognostic significance.

OBJECTIVE: To analyze and compare clinico-pathologic characteristics and survival between lung tumors with mixed histologic pattern and our population of resected lung tumors with single histology in the same period. METHODS: From January 1993 to December 1999, 1158 patients received resection for lung tumors. Of these, 59 (5.1%) presented a mixed histologic pattern on the surgical specimen. There were 48 men and 11 women (mean age 64 years, range 43-79). Three groups of tumors were identified: adenosquamous carcinoma, combined neuroendocrine + non-neuroendocrine carcinoma (NNEC) and biphasic tumors (epithelial + mesenchymal malignant components) represented by carcinosarcoma and blastoma. The combined neuroendocrine tumors were further divided in small cell lung carcinoma (SCLC) + large cell neuroendocrine carcinoma (LCNEC)/NNEC and other neuroendocrine tumors/NNEC. Clinico-pathologic characteristics, pTNM and survival were analyzed and compared to our population of resected lung tumors with single histology. RESULTS: There were 33 adenosquamous carcinomas, 19 combined SCLC+LCNEC/NNEC, two other neuroendocrine tumors/NNEC and five biphasic tumors (three carcinosarcomas and two blastomas). Among adenosquamous carcinomas, high cell grading (G2 or G3), advanced stage (IIIa or higher) and intratumoral perineural invasion were significantly more evident than in the single histology population. Among combined neuroendocrine/NNEC, high cell grading (G3) and intratumoral vascular invasion were significantly more evident than in the single histology population. Among biphasic tumors, all were at early stages and showed high cell grading (G3). Three-year survival rates were 46% in the single histology group, 28% in the adenosquamous group and 21% in the combined SCLC + LCNEC/NNEC. The difference among the three groups was significant (P = 0.013). Median survival of biphasic tumors was 19 months (range 8-37). CONCLUSIONS: Lung tumors with mixed histologic pattern are rare tumors. Adenosquamous carcinoma and combined SCLC + LCNEC/NNEC present a more aggressive clinico-pathologic behaviour and reduced survival as compared to the single histology population of resected lung tumors.

Adult↗

Bronchial carcinoid tumors: surgical management and long-term outcome.

OBJECTIVE: We sought to determine the variables influencing long-term survival of patients treated for bronchial carcinoid tumors. METHODS: A retrospective, mono-institutional review of patients subjected to surgical treatment since 1977 was conducted. RESULTS: Over 22 years, 126 patients with a final histologic diagnosis of bronchial carcinoid tumors were assessed for surgery. The group comprised 72 men (57%) and 54 women (43%) with a mean age at presentation of 47 +/- 16 years (range 11-77 years). Symptoms were present in 65 (53%) patients. Operations included lobectomy or bilobectomy in 88 (with 4 bronchoplastic procedures), pneumonectomy in 15, segmentectomy in 3, wedge resection in 16, and bronchial sleeve resection in 3 patients. One patient (0.7%) died in the perioperative period. Eighty-two patients (65%) had typical and 44 (35%) had atypical carcinoid tumors. Postoperative staging was complete for 113 of 126 patients (13 patients did not undergo lymphadenectomy): 90 patients had stage I disease, 6 had stage II, 15 had stage III, and 2 had stage IV disease. A typical subtype was stage I in 70 and more advanced (II-IV) in 5, whereas an atypical subtype was stage I in 20 and more advanced in 18 (P <.05). Mean follow-up was 99 +/- 73 months (range 6-282 months) during which 19 (15%) patients died (12 of recurrent disease). Recurrent tumor developed in 4 (5.5%) of 72 patients affected by typical subtypes and 8 (19.5%) of 41 by atypical subtypes with complete follow-up. Overall survival at 15 years was 74%; survival related to histologic type and nodal status at 15 years was significant (P <.05). CONCLUSIONS: Biologic behavior and prognosis for bronchial carcinoid tumors are better than for other lung cancers. Surgical treatment requires radical excision and lymph node sampling. Survival and long-term outcome are significantly related to the histologic type, nodal status, and pathologic stage.

Biopsy↗