PubMed Health⌕ Search

Biomedical subjects

F Pepi

Publications and source records attributed to F Pepi.

30 records · Page 2Linked to original sources

A role for tumor markers in therapeutic decisions after chemotherapy induction of objective remission in stage III epithelial ovarian neoplasms.

The management of advanced stage ovarian carcinomas is presently based on initial surgical debulking, multiple drug chemotherapy including cisplatinum, second-look laparotomy. Such an aggressive approach has improved objective response rates and expected survival time, but no dramatic change has been demonstrated as for definitive cure percentages. Many Authors have attempted to turn an optimal objective response to chemotherapy (no residual or minimal residual disease at second-look) into a definitive cure with irradiation. Some reports show satisfactory results, but a high incidence of bowel obstructive complications has been demonstrated, probably due to multiple surgical manipulations before radiotherapy. A reliable diagnostic tool, that could help to avoid the second-look laparotomy (whose inherent role in improving survival is not assessed) should be therefore useful. The possible role of serum tumor markers determinations, for this purpose, is here discussed on the ground of a series of 20 patients affected by stage III ovarian carcinoma. Following this experience, a valuable role seems attributable to CA 125 in monitoring tumor response. Patients achieving values under 35 U/ml before second-look laparotomy showed tumor residuals in the range O-microscopic- less than 1 cm., that is, neoplastic localizations reliable for consolidation radiation therapy.

Adenocarcinoma↗

[Effort to radically cure stage III and IV esophageal carcinoma with simultaneous radiotherapy and chemotherapy in standard clinical practice].

PURPOSE: Chemotherapy and concurrent irradiation, intended to cure, are presently standard treatments for non metastatic, unresectable oesophageal cancer. The results of the combined therapy are superior to those of radiotherapy alone, attaining 25-35% 2-year survival rates. However these results mainly refer to stage I and II tumours as most of the available literature has focussed on these groups. The aim of our report is to present our experience with Stage III and IV patients. MATERIAL AND METHODS: Sixty-four Stage III and IV oesophageal cancer patients were referred to our Departments from January 1, 1990 to December 31, 1996. Diagnosis was obtained through oesophagoscopy and biopsy, stage was assessed by physical examination, chest CT scan, bronchoscopy, barium X-ray examination, upper abdomen ultrasonography and bone nuclide scan. Thirty-four patients, with no signs of blood-born metastases and in satisfactory medical conditions (i.e. age not exceeding 70 years, weight loss not exceeding 10% of body weight, normal serum values of BUN and creatinine, no other severe disease), were submitted to concurrent chemo-radiotherapy. The case features were as follows: histology of squamous cell carcinoma in 32 cases, of adenocarcinoma in 2; tumour in the upper third of the oesophagus in 11 (32.5%), in the middle third in 18 (53%), in the lower third in 5 (14.5%); male/female ratio 29/5, age 48-68 years (mean 56), Karnofsky performance status of 60% or higher. On referral, 18 out of 34 (53%) had a weight loss more than 5% of body weight and 22 (64.5%) had dysphagia. Twenty-one had Stage III (61.75%) and 13 stage IV (38.25%) cancer, with metastasis limited to the supraclavicular or coeliac nodes, which could be included in the radiation volume. In all cases chemotherapy consisted of 5-Fluoruracil (administered in a continuous i.v. infusion, from day 1 to 5, with a 750-1.000 mg/n.sq daily dose) and Cisplatin (75-100 mg/n.sq on the first day, or 20 mg/n.sq for 5 consecutive daily doses, administered by i.v. bolus). Three to 5 cycles were administered, one every 21 days. Irradiation started with the first cycle of chemotherapy in 5 patients, with the second or third cycle in 29. At least two cycles of chemotherapy were administered during the course of radiation. Radiotherapy was performed with 4 to 18 MeV linear accelerator X-rays, or telecobalt, through opposite anterior and posterior treatment portals or more complex field arrangements. The doses were in the range of 44-66 Gy, with fractionation of 5x180-200 cGy weekly sessions. After treatment, periodic follow-up controls were carried out in all cases. Thorough restaging was performed only in selected cases, thus a systematic evaluation of objective responses was not possible. Data on improvement of swallowing were always available, however, and the early therapeutic results were analysed accordingly. Toxicity was recorded according to the WHO parameters. Two-year survival after conclusion of the treatment was calculated according to Kaplan and Maier. Survival was analysed (log-rank test) according to stage, Performance Status, oesophagectomy and body weight loss. RESULTS: After treatment, subjective symptomatic relief occurred in 17 of the 22 patients presenting dysphagia (77.5%). Acute toxicity (Grade III or IV WHO) of the treatment accounted for 47% of hematologic adverse effects, 40% of mucositis, 20.5% of vomiting or diarrhoea not responding to drug treatment. Treatment delays of more than one week, due to toxicity, occurred in 23.5%. Moreover, we observed 20.5% of mild cardiotoxicity and 6% of mild nephrotoxicity. No symptomatic lung fibrosis was observed. No death could be related to toxicity. Overall 2 year survival was 13%, with a median value of 10 months. Survival analysis, according to stage, showed 2 year values of 24% in Stage III and 0% in Stage IV (p=0.09). No significant difference was related to Performance Status and weight loss. Six patients showed a remarkable improvement in symptoms and general conditions after treatment, and were restaged with oesophagoscopy, thoracic CT scan and bronchoscopy, which evidenced resectable residual tumors, and they were then operated. Although histologic examination showed tumour in all the resected specimens, 2 patients survived more than two years (33.5% survival, median 14 months). Due to the small number of operated patients, no attempt was made to assess the significance of this result, in comparison with the other cases. DISCUSSION AND CONCLUSIONS: Many Stage III and IV patients, selected for an aggressive chemo-radiation approach on the grounds of satisfactory medical conditions, can obtain relief of dysphagia. Toxicity can be severe, but is rarely life-threatening. Some cases, without extrathoracic spread of the tumor can achieve long term survival (in our experience 24% 2-year survival in Stage III, in our experience which favourably compares with the results obtained by other authors). Whether surgery may improve the therapeutic results of chemo-radiotherapy in patients whose tumour has become resectable, is an issue that cannot be satisfactorily addressed on the basis of our experience, nor are the results from the available literature exhaustive to this regard.

Aged↗

Dangerous thrombophilic states and internal pathologies: 3 cases of thrombosis of the abdominal veins.

Thrombosis of the abdominal veins is a rare clinical condition which can be assimilated with the more frequent localization of deep venous thrombosis of the lower limbs. In the last few years great attention has been paid to possible risk factors for thrombosis of the abdominal veins. Two risk factors that have been identified are the presence of internal diseases and congenital and/or acquired abnormalities of haemostasis. The authors describe 3 clinical cases (splenic and portal thrombosis due to congenital thrombophilia, Budd-Chiari syndrome, portal cavernoma consequent to ovarian neoplasia) with different etiopathogenesis to show how this apparently rare condition is today more frequently encountered and easier to recognize. In the presence of thrombosis of major venous structures the search and the identification of intrinsic internal risk factors and of congenital and acquired thrombophilic disorders remains of great importance. Screening for thrombophilia includes blood C and S proteins, AT III, homocysteine, Leiden mutation of the factor V gene, G20210A mutation of the prothrombin gene, antiphospholipid antibodies. The presence of one or more of these risk factors allows the identification of the cases of portal thrombosis (EHPVO) responsible for about 10% of all the cases of portal hypertension, without cirrhosis or other hepatic lesions. The primary diagnostic procedure however remains color-Doppler ultrasonography which represents the most simple and the cheapest diagnostic investigation for the study of the portal and suprahepatic vein system, but it's strictly operator dependent.

Abdomen↗

Hyperhomocysteinemia in preeclampsia is associated to higher risk pressure profiles.

Homocysteine levels have been determined with Chromatography on HPLC column, between the 20th and the 24th week of pregnancy, in women with analogous characteristics (a) normotensive, (b) with pregnancy-induced hypertension (PIH), low (LR), medium (MR), high risk (HR). The group they belonged to was confirmed after natural or caesarean delivery. All the patients were submitted to 24 hour blood pressure monitoring for the evaluation of further pressure risk parameters: mean arterial pressure (MAP), non dippers, percentages of pressure peaks. Homocysteine levels in normotensive pregnant women (5.8 +/- 1.7 microM) were low. Significant high levels of homocysteine were present proportionally to the risk degree of PIH. Higher levels of homocysteine statistically significant were present in non dippers of all groups (MR p < 0.05; HR p < 0.01). A direct correlation between plasmatic homocisteine levels and pressure profiles was found out in non dippers (r = 0.56, r = 0.55, r = 0.50 respectively) and in dippers (r = 0.7, r = 0.75, r = 0.60 respectively), and also between levels of homocysteine, MAP value, and pathological percentages of systolic and diastolic nocturnal peaks. In pregnant women presenting preeclampsia afterwards, high levels of homocysteine were not different from mean values present in high risk PIH pregnant women (13.3 +/- 1.9 vs. 16.4 +/- 1.7 microM). High levels of homocysteine early determined in the second trimester of PIH pregnancies seem to be associated to a pregnancy higher risk, coexisting with dangerous pressure profiles. High levels confirm a pregnant woman to belong to a higher or lower risk degree of vascular damage, but in the same group context high levels of homocisteine do not allow to identify those pregnant women who will develop eclampsia.

Female↗

[Changes in performance status in patients with pulmonary carcinoma treated with mono-fractionation radiotherapy once a week].

45 patients with lung cancer at the III and IV stage were treated with once-a-week radiation therapy. Treatments were carried out with a daily fraction, at beginning, of 880 rad (2100 ret) (14 pz.) and 550 rad (1500 ret) afterwards. In both cases the total dose was 4400 rad. All the patients had symptoms of locally advanced cancer: cough (46%), hemoptysis (31%), dyspnea (62%) and chest pain (28%). All of them were out-patients (ECOG 0-1) and presented a Performance Status by Karnofsky of 50-80. The average age was 60 (median 65, range 38-85) with a raised percent (50%) of collateral illness. The selection of once-a-week technique was determined by the bad prognosis and the necessity of symptoms' control, allowing the patients to stay in his proper social and family group. All the time of therapy and the follow-up the values of Performance Status were assigned scrupulously. The analysis showed that the 80% of the patients had a subjective improvement which lasted, on average, 4 months (range 1-21) with an increase of 20 points of Performance Status after the end of therapies. Concluding, the high percentage of success on symptoms presented by the patients, confirms the validity of weekly radiotherapy, which guarantees, besides the palliative effect, the psychological integrity which is necessary in the last period of the life of cancer patient.

Adult↗

[Combined chemo-radiotherapy in non-operable cervico-facial neoplasms. Final results of an experience with non-selected patients].

The management of advanced inoperable head and neck cancer is often based on a combined chemo-radiotherapy approach. No definitive conclusions on the effectiveness of this combination can be drawn from clinical trials because these neoplasms are heterogeneous and treatment schedules vary. Many scientific trials test highly toxic combinations, whereas not only good results but also low toxicity are mandatory in the current practice. We report the results obtained in 90 consecutive patients affected with inoperable head and neck cancers in stages III-IV, or relapsed after surgery. Chemotherapy consisted of a cis-platinum/bleomycin induction phase, followed by weekly administrations of cis-platinum simultaneous with conventional irradiation. The objective remission rates, achieved at the end of the induction chemotherapy and the simultaneous chemo-radiotherapy phases, were respectively 55.5% and 84.5%. The tumor disappeared in 39% of cases, by the end of the whole treatment. With the Kaplan-Meier method, 3-year overall, progression-free and relapse-free survival rates were 21.20%, 22.25% and 38.75%, respectively. The overall survival rate, calculated with the "log-rank" test according to the stage and the site of the primary tumor, exhibited no significant differences. In contrast, significant differences (p < 0.05) were demonstrated, according to treatment intent (curative radical: 26%, vs palliative: 0%) and to the achievement of an objective response at the end of induction chemotherapy--i.e., 48% 3-year survival rate, vs 7% in chemotherapy resistant cancer patients. When limiting the analysis to 72 radically irradiated patients, however, the achievement of CR after induction chemotherapy lost its prognostic value. Toxicity was not substantially higher than with conventional irradiation. Our results are in agreement with literature data on this subject which, regarding survival, fail to prove such integrated treatments as ours better than irradiation alone. In contrast, the preliminary combination of chemotherapy and irradiation is clearly better for the patients waiting to receive radiation therapy, because tumor volume and related symptoms markedly decrease after induction chemotherapy. Currently the best survival rates (about 50% at 3 years) with chemo-radiotherapy are obtained, in this kind of cancer, by combining cis-platinum and continuous-infusion 5-fluorouracil, simultaneous with irradiation. However, frequent and severe toxicity is reported. Should such a modality be adopted in the current practice, patients should be selected according to their medical conditions.

Adult↗