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Biomedical subjects

D Tsiftsis

Publications and source records attributed to D Tsiftsis.

At least 19 recordsLinked to original sources

Motor vehicle trauma: analysis of injury profiles by road-user category.

BACKGROUND: Vehicle accidents in Greece are among the leading causes of death and the primary one in young people. The mechanism of injury influences the patterns of injury in victims of vehicle accidents. OBJECTIVE: Identification and analysis of injury profiles of motor-vehicle trauma patients in a Greek level I trauma centre, by road-user category. PATIENTS AND METHODS: The trauma registry data of Herakleion University Hospital of adult trauma patients admitted to the hospital after a vehicle accident between 1997 and 2000 were retrospectively examined. Patients were grouped based on the mechanism of injury into three road-user categories: car occupants, motorcyclists, and pedestrians. RESULTS: Of 730 consecutive patients, 444 were motorcyclists (60.8%), 209 were car occupants (28.7%), and 77 were pedestrians (10.5%). Young men constituted the majority of injured motorcyclists whereas older patients (p = 0.0001) and women (p = 0.0001) represented a substantial proportion of the injured pedestrians. With regard to the spectrum of injuries in the groups, craniocerebral injuries were significantly more frequent in motorcyclists and pedestrians (p = 0.0001); abdominal (p = 0.009) and spinal cord trauma (p = 0.007) in car occupants; and pelvic injuries (p = 0.0001) in pedestrians. Although the car occupants had the highest Injury Severity Score (ISS) (p = 0.04), the pedestrians had the poorest outcome with substantially higher mortality (p = 0.007) than the other two groups. CONCLUSIONS: The results reveal a clear association between different road-user categories and age and sex incidence patterns, as well as outcomes and injury profiles. Recognition of these features would be useful in designing effective prevention strategies and in comprehensive prehospital and inhospital treatment of motor-vehicle trauma patients.

Accidents, Traffic↗

Detection of CK-19 mRNA-positive cells in the peripheral blood of breast cancer patients with histologically and immunohistochemically negative axillary lymph nodes.

BACKGROUND: To investigate the incidence of direct hematogenous spread of cancer cells in patients with early-stage breast cancer by studying the presence of occult tumor cytokeratin-19 (CK-19) mRNA(+) cells in the peripheral blood in relation to the status of sentinel (SLNs) and (ALNs) axillary lymph nodes. PATIENTS AND METHODS: SLNs and ALNs from 111 patients with operable stage I-II breast adenocarcinoma were evaluated for the presence of tumor cells by hematoxylin-eosin (H&E) staining and, if negative, by immunohistochemistry (IHC) using an anti-CK-19 antibody. Peripheral blood was also analyzed for the presence of CK-19 mRNA(+) cells by nested RT-PCR, before the initiation of adjuvant treatment and in CK-19 mRNA(+) patients following the completion of adjuvant chemotherapy and hormonal treatment. RESULTS: After both H&E staining and IHC analysis, 29 (26%) patients were ALN negative (N0). In 78 (70%) patients H&E staining and in four (3.6%) IHC analysis revealed tumors cells, and these patients were considered as ALN positive (N+). Peripheral blood CK-19 mRNA(+) cells were detected in nine (31%) out of 29 N0 and in 31 (38%) out of 82 N + patients (P=0.5) before any adjuvant treatment. Adjuvant chemotherapy and hormone treatment resulted in the disappearance of the CK-19 mRNA(+) cells in all N0 patients and in 15 out of 31 N + patients. After a median follow-up of 40 months, all the N0 CK-19 mRNA(+) patients were relapse-free whereas four (13%) N + CK-19 mRNA(+) patients had relapsed. CONCLUSIONS: Direct hematogenous dissemination of occult tumor cells may occur in a substantial proportion of patients with early-stage breast cancer. The prognostic implication of the detection of these cells requires long follow-up periods and further studies.

Adenocarcinoma↗

Axillary lymphadenectomy for breast cancer - the influence of shoulder mobilisation on lymphatic drainage.

AIM: The purpose of the present study was to study the influence of external axillary compression dressing with immobilisation of the ipsilateral shoulder after axillary lymph node dissection (ALND) on postoperative axillary drainage. METHODS: One hundred consecutive women with breast cancer undergoing ALND were enrolled in this study. They were allowed free shoulder movement and were compared with a matched historical control group of 60 patients, in whom the ipsilateral arm was immobilised for four days. For all patients the amount of drainage was recorded each postoperative day until drain removal. Prognostic data on drainage amounts and duration were gathered from all patients. Complications were recorded. RESULTS: Hospital stay was the only statistically significant difference between the two groups, it was prolonged for patients with immobilisation of the arm. The parameters found to influence the drain production with a statistically significant difference were body mass index and the removal of more than 10 lymph nodes. Postoperative complications were similar in both groups. CONCLUSIONS: External compression dressing of the axillary cavity with immobilisation of the ipsilateral arm has no impact on the postoperative drainage volume and duration. It is associated with adverse effects, such as discomfort, prolonged hospital stay and shoulder stiffness.

Adult↗

The role of 99m Tc-sestamibi scintimammography and colour Doppler ultrasonography in the evaluation of breast lesions.

In the present study we evaluated comparatively the diagnostic value of mammography, of 99mTc-sestamibi scintimammography (sestamibi-SC) and of colour Doppler ultrasonography (CD-US) in 116 breast lesions. Diagnosis was based on histopathological examination. Overall, out of 86 malignant tumours, 80 (93%) and 75 (87%) had a positive sestamibi-SC and positive CD-US, respectively. Out of 30 benign lesions, 25 (83%) and 26 (87%) had a negative sestamibi-SC and negative CD-US respectively. The true positive results were similar in palpable and in non-palpable lesions for both methods. Out of 19 non-palpable malignant tumours, mammography confirmed malignancy in only one case (5%), which was significantly lower than the results obtained by sestamibi-SC (89%; Px0.0001) and by CD-US (74%; P=0.0001). In palpable malignant tumours, by using mamography, true positive results were obtained in 54/67 (80.5%) patients, which was significantly lower than the results obtained by sestamibi-SC (94%; P=0.03) and marginally different to the results obtained by CD-US (91%; P=0.13). It is concluded that sestamibi-SC and CD-US are useful tools in clarifying the nature of breast lesions in cases with doubtful mammography. The clinical value of these diagnostic procedures in guiding subsequent therapeutic interventions requires further investigation.

Adult↗

Management of simple thoracic injuries at a level I trauma centre: can primary health care system take over?

BACKGROUND: Overtriage is a problem for all trauma systems, including the Greek emergency system. In this study we examined the performance of the primary care emergency system in the treatment of patients with simple thoracic injuries, in the area of a Level I hospital. Our aim was to form organizational proposals and treatment and referral guidelines in an effort to improve the system's performance. METHODS: We reviewed the notes of 488 patients with a thoracic injury as their main complaint, seen and immediately discharged from the A+E department of a Level I hospital. RESULTS: Falls and road traffic accidents were the most common mechanisms of injury. The majority of the injuries were rib fractures or rib cage contusions. Many patients sought medical advice several days after the injury. Fifteen patients required conservative treatment for orthopaedic injuries. Clinical examination, X-rays and abdominal ultrasound were the most useful tests. CONCLUSIONS: Detailed clinical examination, time from injury and a chest X-ray usually identifies the patients who can safely be treated in primary health care facilities. Simple radiology services (X-ray and US) and training of general practitioners in basic emergency care principals in primary care health centres would reduce the number of referred patients with simple thoracic injuries.

Accidental Falls↗

Malignant peritoneal mesothelioma treated by continuous hyperthermic peritoneal perfusion chemotherapy.

Malignant mesothelioma of the peritoneum is a rare tumour for which the therapeutic approach has not yet been standardized. The efficacy of the current regimes is limited. Effective locoregional therapy is crucial, since this tumour is most often confined to the peritoneal cavity at the time of the initial diagnosis and remains there for much of its clinical course. If and when haematogenous metastases occur, they rarely contribute to the death of the patient, which is often caused by the overgrowth of the primary tumour and its local complications. A case of diffuse malignant peritoneal mesothelioma treated by cytoreductive surgery and continuous hyperthermic peritoneal perfusion with cisplatin is reported. The patient received systemic combination chemotherapy postoperatively. She is in good condition and free of disease 28 months after her treatment. Continuous hyperthermic peritoneal perfusion chemotherapy has recently been used in patients with secondary peritoneal carcinomatosis from digestive and gynecological malignancies with promising results. It is also possible that the same treatment alone or in combination with systemic chemotherapy may be effective in the treatment of primary peritoneal malignancies, as in the case of diffuse peritoneal mesothelioma.

Aged↗

Allelic loss in chromosomal region 1q21-23 in breast cancer is associated with peritumoral angiolymphatic invasion and extensive intraductal component.

AIMS: Breast cancer is the most frequent cancer in the female population and the involvement of chromosomal alterations is often implicated in the development of cancer. The aim of our study was to assess loss of heterozygosity (LOH) in chromosome 1 in relation to clinical and pathological parameters. METHODS: Tumours, corresponding normal tissues and peripheral blood samples from 50 women with operable breast cancer, were analysed by polymerase chain reaction (PCR) at 16 polymorphic DNA markers, on both the long and short arm of chromosome 1. RESULTS: There was a significant correlation between chromosomal region 1q21-23 and the presence of extensive intraductal component (EIC) and peritumoral angiolymphatic (PALI) invasion, both independent markers of local recurrence. CONCLUSIONS: Allelic loss in region 1q21-23 may be a valuable prognostic biological marker for the detection of local relapse in breast cancer, in combination with other histological and clinical parameters.

Alleles↗

Nuclear grading in invasive ductal breast carcinomas.

Nuclear grade (NG) was studied in cytologic material obtained from 120 fine-needle aspiration biopsies of breast lesions and compared with the NG observed in the nuclear grade of surgical biopsies of the same lesions. All lesions included were invasive breast carcinomas diagnosed cytologically and confirmed histologically. Cytologic aspirates and tissue sections were graded by cytologists and pathologists, respectively, using a multiheaded microscope. Fisher's modification of Black's NG scheme was used. An agreement was observed between the NG of cytologic material and that of surgical biopsies in 93.33% of tumors, and an interesting exercise would be to correlate the NG with other significant factors for the prognosis of breast carcinomas. The purpose of this study was to assign and correlate the NG of ductal carcinomas of the breast in fine-needle aspiration biopsies and tissue specimens from the same patients.

Breast Neoplasms↗

Peritoneal expansion by artificially produced ascites during perfusion chemotherapy.

HYPOTHESIS: In cases of peritoneal carcinomatosis, continuous hyperthermic peritoneal perfusion chemotherapy (CHPPC) accomplishes homogeneous distribution of the drug and heat to the entire peritoneal cavity and exposure of the visceral and parietal surfaces to the perfusate. A new closed technique for expansion that produces artificial ascites is safer for medical personnel because of less heat and drug loss and more efficacious in its hemodynamic effect on the patient. DESIGN: Prospective study. SETTING: University hospital. PATIENTS: Twenty-one patients with peritoneal carcinomatosis. INTERVENTIONS: We performed 23 continuous hyperthermic peritoneal perfusion chemotherapy (CHPPC) procedures with peritoneal cavity expansion to an intra-abdominal pressure up to 26 mm Hg, using artificially produced ascites with 4 to 9 L normal saline solution. MAIN OUTCOME MEASURES: Intraoperative and postoperative complications and hemodynamic changes during CHPPC. RESULTS: No intraoperative complications were recorded. The artificially produced ascites did not cause significant hemodynamic changes. During the immediate postoperative period, 1 patient died of intra-abdominal hemorrhage and leakage of a colorectal anastomosis, resulting in a mortality rate of 4% in our series. Minor complications were seen in 14 patients. The complications were not attributable to the expansion technique. CONCLUSIONS: Our proposed modification of closed-circuit CHPPC appears to be well tolerated and safe in patients with a high tumor load, as well as for the theater personnel. It remains to be investigated whether the theoretical advantages of the proposed technique will also lead to better long-term results.

Ascites↗

First-line treatment with mitoxantrone, methotrexate, vincristine, and carboplatine (MIMOC) plus cyclical hormonotherapy with tamoxifen and megestrol acetate in advanced breast cancer.

Fifty patients with stage IIIB and IV breast cancer entered a prospective study receiving combination chemotherapy consisting of mitoxantrone (8 mg/m2) on day 1, methotrexate (30 mg/m2) on day 1, vincristine (1 mg/m2) on day 2, and carboplatine (250 mg/m2) on day 2 (MIMOC), plus cyclical hormonotherapy with tamoxifen (20 mg daily, days 1-10) and megestrol acetate (160 mg daily, days 11-21). The regimen was repeated every 3 weeks. None had received chemotherapy for advanced disease, although 17 patients had previously received adjuvant chemotherapy and 21 had received adjuvant hormonotherapy with tamoxifen. Twenty-seven patients had positive estrogen receptor (ER+) status, and 23 negative estrogen receptor (ER-) status. Response was observed in 31 (62%) of the 50 analyzed patients (95% CI: 48.5-75.4%), with 5 complete responses (10%). A significantly better response rate was observed in ER+ patients (p = 0.03). The median duration of response was 16 months, and the median time to disease progression was 18 months. The median overall survival was 19 months (27 for responders and 7 for nonresponders). ER+ patients had a higher probability of survival (p = 0.02). Toxicity was moderate. Nausea/vomiting and myelotoxicity were the main side effects. In conclusion, MIMOC plus cyclical hormonotherapy represents a well-tolerated and effective first-line treatment for advanced breast cancer. The observed difference in response and survival in favor of ER+ patients warrants further investigation.

Adult↗

First-line treatment of metastatic breast cancer with mitoxantrone, vinorelbine, and carboplatin.

A phase II trial was conducted with mitoxantrone (12 mg/m2, day 1), vinorelbine (30 mg/m2, day 1), and carboplatin (250 mg/m2, day 2) every 21 days. Fifty eligible women who had not received prior chemotherapy for metastatic breast cancer (MBC) entered the study. Objective responses were observed in 28 patients (56%; 95% confidence interval: 42.4-69.74%), with 4 complete (8%) and 24 partial responses (48%). Stable disease was observed in 12 patients (24%) and disease progression in 10 (20%). Responses were documented in all involved sites. The median duration of response was 6 months and the median time to tumor progression 8 months. The median survival was 26 months and the estimated 2-year survival was 52%. Grade 3/4 neutropenia was observed in 29 patients (58%) with four neutropenic episodes. Grade 3/4 anemia and thrombocytopenia was observed in 7 (14%) and 11 (22%) patients, respectively. Other toxicities included grade 2/3 nausea and vomiting in 26 patients (52%) and grade 1/2 alopecia in 38 (76%). Grade 1/2 neurosensory toxicity occurred in four patients (8%). In conclusion, this three-drug regimen is effective and well tolerated for the treatment of MBC.

Adult↗

Cysts of the adrenal gland: diagnosis and management.

OBJECTIVE: Cysts of the adrenal gland are rare, but with the wider application of sonography and computed tomography more adrenal cysts are detected incidentally. To gain more insight into this entity, five such cases are reported and their diagnostic approach and management are discussed. PATIENTS AND METHODS: The records of five patients with six cysts of the adrenal glands seen at our department from 1987 till 1995 are reviewed. There were four males and one female and their age ranged from 24 to 72 years, with a mean age of 43 years. One patient had a primary hydatid cyst of the right adrenal gland, which was preoperatively thought to arise from the liver or the right kidney. A second patient had a very large pseudocyst of the left adrenal gland, which is the largest ever reported in the literature. The other four cysts in three patients were found incidentally during sonography or computed tomography. RESULTS: The hydatid cyst with a rim of normal adrenal tissue was excised. The large pseudocyst was removed together with the adrenal gland. In the cases of the incidentally found cysts, observation of the patient with regular follow-up was decided upon. All patients are in good condition and without symptoms 2 to 10 years after the initial diagnosis. CONCLUSIONS: Adrenal cysts are rare and their diagnosis may pose problems. Symptomatic adrenal cysts should be operated, but small, asymptomatic, non-functional cysts with benign characteristics may be treated conservatively with regular follow-up by sonography or computed tomography and hormonal evaluation.

Adrenal Gland Diseases↗

Primary angiosarcoma of the breast.

We report a case of a 44-year-old woman with primary angiosarcoma of the left breast. An excisional biopsy was performed initially and the mass was interpreted as angiosarcoma. The pre-operative staging provided no evidence of metastasis. The patient then underwent a left mastectomy with the placement of an expandable prosthesis. For 3 months the prosthesis was progressively expanded to the desired size and it was then replaced with a permanent one. Primary angiosarcoma of the breast is a rare and often misdiagnosed disease. Treatment options are numerous and conflicting. The diagnostic approach and treatment options from the literature are presented and discussed.

Adult↗

Primary hydatid cyst of the adrenal gland.

An extremely rare case of primary hydatid cyst of the adrenal gland is reported. Adrenal hydatid cysts are usually a manifestation of generalized echinococcosis. Only nine primary cases have so far been reported in the literature. The presentation is insidious. Correct preoperative diagnosis is difficult. Clinical and investigative findings are non-specific and ambiguous. Surgery is the treatment of choice.

Adrenal Gland Diseases↗

Disorders associated with clinically severe obesity: significant improvement after surgical weight reduction.

BACKGROUND: Surgical treatment for patients with clinically severe obesity mainly aims to reduce morbidity. METHODS: Sixty-two patients were examined for disorders associated with morbid obesity before and after surgical weight reduction by vertical banded gastroplasty. All patients were followed-up for 12 to 48 months. RESULTS: At the end of the first postoperative year, 84% of the patients had lost at least 50% of their excess weight. Of the 218 weight-related pathologic conditions existing before the operation, 131 (60%) were completely cured, 50 (23%) showed significant improvement, and only 37 (17%) remained unchanged. The same percentages were obtained for patients followed tip for 24, 36, and 48 postoperative months. CONCLUSIONS: Surgical treatment of clinically severe obesity has a significant effect on the health of the patients by eliminating the associated disorders.

Adult↗

The clinical significance of acquired jejunoileal diverticula.

OBJECTIVE: Because of the relative rarity of acquired jejunoileal diverticulosis, including its symptomatology and complications, diagnosis is often difficult and delayed, resulting in unnecessary morbidity and mortality. The purpose of the present study was to draw attention to jejunoileal diverticula and their complications as a site of gastrointestinal symptoms. METHODS: The records of 10 patients with symptomatic jejunoileal diverticula treated in our departments were reviewed. RESULTS: The clinical presentation was varying and nonspecific. Jejunoileal diverticula were diagnosed peroperatively in four patients operated on successfully for their acute complications. In one case the diagnosis was considered after a radiotargeted erythrocyte bleeding scan and in five other cases enteroclysis for chronic abdominal complaints demonstrated jejunoileal diverticula. The death of one patient operated on for massive hemorrhage from jejunal diverticula was probably related to delayed diagnosis and treatment. CONCLUSIONS: Jejunoileal diverticula should not always be dismissed as asymptomatic findings, as they may be the cause of vague, chronic symptomatology and acute complications, including intestinal obstruction, hemorrhage, and perforation. Awareness of the fact that jejunoileal diverticula may cause chronic nonspecific abdominal symptoms and serious acute complications may lead to earlier diagnosis and timely treatment with lower morbidity and mortality.

Aged↗