189 results on '"P. Lozac’h"'
Search Results
102. Preoperative Concomitant Radiochemotherapy in Squamous Cell Carcinoma of the Esophagus: Results of a Study of 56 Patients
- Author
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Malhaire, J.-P., Labat, J.-P., Lozac'h, P., Simon, H., Lucas, B., Topart, P., and Volant, A.
- Published
- 1996
- Full Text
- View/download PDF
103. Double Trap Interface: A novel gas interface for high throughput analysis of biomedical samples by AMS
- Author
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De Maria, Daniele, Fahrni, Simon M., Lozac'h, Frédéric, Marvalin, Cyrille, Walles, Markus, Camenisch, Gian, Wacker, Lukas, and Synal, Hans-Arno
- Abstract
Although Accelerator Mass Spectrometry (AMS) offers unparalleled sensitivity by investigating the fate of 14C-labeled compounds within the organism, its widespread use in ADME (absorption, distribution, metabolism, excretion) studies is limited. Conventional approaches based on Liquid Scintillation Counting (LSC) are still preferred, in particular because of complexity and costs associated with AMS measurements. Progress made over the last decade towards more compact AMS systems increased the interest in a combustion-based AMS approach allowing the analysis of samples in gaseous form. Thus, a novel gas Double Trap Interface (DTI) was designed, providing high sample throughput for the analysis of biomedical samples. DTI allows the coupling of an Elemental Analyzer (EA) for sample combustion to the hybrid ion source of a MICADAS (MIni CArbon DAting System) AMS system. The performance was evaluated in two studies through the analysis of more than 1000 samples from 14C-labeled biomatrices and fractions collected after liquid chromatography (LC). The covered activity ranged from 1 to 1000 mBq/g for labeled biomatrices and from 1 to 10000 mBq/g(C) for LC fractions. The implemented routine allows automated measurements requiring less than 5 min per sample (12–13 analyses per hour) without the need for sample conversion to graphite.
- Published
- 2021
- Full Text
- View/download PDF
104. [Epidermoid cyst of the spleen in children. Apropos of 2 cases]
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G, Leschallier, A, Volant, P, Lozac'h, B, Jehannin, and J F, Charles
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Male ,Adolescent ,Epidermal Cyst ,Splenectomy ,Humans ,Female ,Spleen ,Splenic Diseases - Published
- 1987
105. [Value of x-ray computed tomography in evaluating the operability of esophageal cancer. Results of a prospective study]
- Author
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P, Lozac'h, D, Le Cocquen, B, Senecail, and J F, Morin
- Subjects
Double-Blind Method ,Esophageal Neoplasms ,Evaluation Studies as Topic ,Lymphatic Metastasis ,Carcinoma, Squamous Cell ,Humans ,Neoplasm Invasiveness ,Prospective Studies ,Tomography, X-Ray Computed - Abstract
The authors report their results of a prospective double-blind study of 35 patients with squamous cell carcinoma of the esophagus conducted between February 1987 and February 1988. As all the patients were operated upon, we were able to define diagnostic accuracy (DA) of CT in determining the upper pole of the tumour, position of the tumour, invasion of trachea and bronchi, aorta, left auricle, vertebral column, pleura, pericardium and also abdominal invasion or thoracic lymph node. CT scanning slightly improved pre-operative evaluation of resectability of tumours when compared with routine barium swallow, abdominal US and bronchoscopy. It is not of great help for tumours smaller than 5 cm. CT scanning is particularly useful in evaluation of response to pre-operative chemotherapy.
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- 1989
106. [Adenocarcinoma of the duodenum. Apropos of 2 cases: review of the literature]
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J P, Bail, P, Lozac'h, A, Volant, and J F, Charles
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Male ,Pancreatectomy ,Duodenal Neoplasms ,Age Factors ,Humans ,Female ,Adenocarcinoma ,Middle Aged ,Prognosis ,Neoplasm Staging - Abstract
The authors report two cases of duodenal adenocarcinoma. Review of literature has permitted them to conclude the rarity of the lesion which among malignant tumours of the small intestine, is the gommenest. Localization of the tumour in the periampullary area in 47% of cases rendered it difficult to differentiate from ampullary and pancreatic tumours especially with the unknown etiological factors (with exception to villous tumours which has a 35% rate of malignant transformation), and also with unspecific symptoms. Diagnosis by x-ray and endoscopy has an accuracy rate of more then 85%. Prognosis is bad and depend mainly on histological differentiation and lymph node spread. 5 years survival rate of 40-50% can be achieved by curative surgery namely cephalic duodeno-pancreatectomy in cases with no lymph node involvement.
- Published
- 1987
107. [Effect of the parenteral feeding regimen on postoperative nitrogen sparing. Comparison of 3 regimens containing 0%, 30% and 50% lipid calories]
- Author
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J P, Delalande, J L, Le Page, M, Le Bos-Monnot, P, Lozac'h, M, Perramant, and J P, Egreteau
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Blood Glucose ,Parenteral Nutrition ,Glucose ,Nitrogen ,Humans ,Postoperative Period ,Lipids - Abstract
Forty one non emaciated patients undergoing major visceral surgery were randomly divided into three groups according to the postoperative parenteral diet (0% fat versus 30% or 50% fat). During five days daily nitrogen balance was studied. There was no evidence of any significant difference between the group 0% and the group 50%. On the other hand significant differences occurred in group 30% on the second, third and fifth postoperative days. The responsibility of inappropriate glucose intakes in envisaged.
- Published
- 1985
108. Peripheral blood and tumor-infiltrating mononuclear cell analysis in esophagus and head and neck cancer
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P. Youinou, C. Zabbe, P. Lozac’h, P. Corbeau, and J. F. Charles
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Adult ,Male ,Cancer Research ,medicine.medical_specialty ,Pathology ,Esophageal Neoplasms ,Neutrophils ,Lymphocyte ,Receptor expression ,T-Lymphocytes ,chemical and pharmacologic phenomena ,Peripheral blood mononuclear cell ,Leukocyte Count ,Internal medicine ,medicine ,Humans ,Esophagus ,Aged ,Hematology ,Tumor-infiltrating lymphocytes ,business.industry ,Head and neck cancer ,Antibodies, Monoclonal ,hemic and immune systems ,Middle Aged ,medicine.disease ,medicine.anatomical_structure ,Oncology ,Head and Neck Neoplasms ,Female ,business ,Infiltration (medical) - Abstract
We show a significantly decreased number of OKT3+ lymphocytes in the peripheral blood (PB) of cancer patients mainly due to a reduced number of KOT4 cells. OKT8 cells were also somewhat reduced. The numbers of DR+ and interleukin-2 receptor-bearing T-cells were significantly increased in patients. The tumor-infiltrating cells included OKT4+ AND OKT8+ lymphocytes. There was a significant correlation between the proportion of activated T-cells in PB and in tumor, as shown by DR and interleukin-2 receptor expression.
- Published
- 1987
109. [Severe hypophosphoremia in a patient on parenteral nutrition with phosphorus enrichment]
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J P, Delalande, P, Lozac'h, J L, Le Page, M, Perramant, and J P, Egreteau
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Adult ,Male ,Fat Emulsions, Intravenous ,Parenteral Nutrition ,Postoperative Complications ,Humans ,Parenteral Nutrition, Total ,Phosphorus ,Phosphorus Metabolism Disorders ,Colectomy - Abstract
A twenty-four year old patient showed severe hypophosphataemia after emergency surgery for colectasia. A critical study of the case isolated the factors which had favoured the development of this metabolic complication. The necessity for great care in the nutrition of emaciated patients as well as that of a phosphorus supply adapted to the metabolic status of the patient were emphasized. Frequent measurement of serum phosphate was recommended for patients undergoing intravenous hyperalimentation.
- Published
- 1984
110. [Chronic segmental pancreatitis and the annular pancreas: apropos of a case]
- Author
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J, Etienne, Y, Foll, A, Volant, and P, Lozac'h
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Adult ,Male ,Pancreatitis ,Chronic Disease ,Humans ,Pancreas - Abstract
In a young patient, stenosis due to annular pancreas was revealed by an attack of pancreatitis. The patient already had segmental chronic pancreatitis. Etiological considerations are proposed, based on an embryological approach with special attention to duct anomalies.
- Published
- 1989
111. [Intraoperative radiotherapy in digestive oncology]
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J P, Bail, J, Etienne, M, Robaszkiewicz, J P, Malhaire, P, Lozac'h, H, Gouerou, J P, Labat, and J F, Charles
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Pancreatic Neoplasms ,Intraoperative Period ,Rectal Neoplasms ,Stomach Neoplasms ,Humans ,Adenocarcinoma ,Digestive System Neoplasms ,Combined Modality Therapy - Published
- 1989
112. [Annular pancreas. Apropos of 4 cases]
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J, Etienne, P, Lozac'h, J P, Bail, P, Parent, and J F, Charles
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Adult ,Male ,Radiography ,Pancreatectomy ,Duodenostomy ,Jejunostomy ,Humans ,Pancreatic Diseases ,Female ,Duodenal Obstruction ,Cholestasis, Extrahepatic ,Pancreas - Abstract
Annular pancreas is a rare congenital anomaly cause of duodenal obstruction. Associated ulcus is frequent. Chronic pancreatitis complicating annular pancreas can lead to resection. Among 4 observations, evolution and treatment are presented. Treatment requires derivation or resection of the stenosis.
- Published
- 1989
113. [Preoperative denutrition: is the assay of fibronectin a good marker in cancer patients?]
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J P, Delalande, M T, Blouch, P, Lozac'h, M, Le Bos-Monnot, and M, Perramant
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Neoplasms ,Preoperative Care ,Humans ,Fibronectins ,Nutrition Disorders - Published
- 1985
114. [Nutritional, respiratory and immunologic status following excision of cancer of the esophagus. Influence on the postoperative course]
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J P, Delalande, P, Lozac'h, J L, Le Page, M, Le Bos-Monnot, and M, Perramant
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Male ,Postoperative Complications ,Esophageal Neoplasms ,Respiration ,Humans ,Female ,Nutritional Physiological Phenomena ,Postoperative Period ,Middle Aged - Published
- 1986
115. [Influence of epidural anesthesia on postoperative nitrogen sparing in major digestive surgery]
- Author
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J P, Delalande, J L, Le Page, M, Perramant, P, Lozac'h, and R L, Tanguy
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Adult ,Anesthesia, Epidural ,Blood Glucose ,Male ,Hydrocortisone ,Nitrogen ,Proteins ,Middle Aged ,Prolactin ,Abdominal Neoplasms ,Humans ,Urea ,Female ,Parenteral Nutrition, Total ,Postoperative Period - Abstract
In order to determine the role of epidural anaesthesia on protein sparing, eighteen patients undergoing major visceral surgery were randomly divided into three different groups according to the mode of anaesthesia used (general anaesthesia, epidural anaesthesia, continuous epidural anaesthesia for 24 h). These patients were intravenously fed for five days postoperatively; their nitrogen balance was studied. Compared with the "general anaesthesia" group, only the daily averages of nitrogen balance of the "continuous epidural" group were significantly better. IN order to correlate stress with nitrogen saving, the early evolution of several parameters (cortisol, glucose, prolactin) used as "stress markers" was studied : there was no evidence of any significant difference between the three groups.
- Published
- 1984
116. Near‐Surface [Ga]/([In]+[Ga]) Composition in Cu(In,Ga)Se2Thin‐Film Solar Cell Absorbers: An Overlooked Material Feature
- Author
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Félix, Roberto, Witte, Wolfram, Hariskos, Dimitrios, Paetel, Stefan, Powalla, Michael, Lozac'h, Mickael, Ueda, Shigenori, Sumiya, Masatomo, Yoshikawa, Hideki, Kobayashi, Keisuke, Yang, Wanli, Wilks, Regan G., and Bär, Marcus
- Abstract
The chemical and electronic structures in the near‐surface region of Cu(In,Ga)Se2thin‐film solar cell absorbers are investigated using nondestructive soft and hard X‐ray photoelectron spectroscopy. In addition to a pronounced surface Cu‐depletion, the [Ga]/([In]+[Ga]) composition indicates that the topmost surface is Ga‐poor (or In‐rich). For the studied depth region, common depth profiling techniques generally fail to provide reliable information and, thus, the near‐surface chemical and electronic structure profiles are often overlooked. The relation between the observed near‐surface elemental compositions and the derived electronic properties of the absorber material is discussed. It is found that the surface band gap energy crucially depends on the Cu‐deficiency of the absorber surface and suggests that it is, in this region, only secondarily determined by the [Ga]/([In]+[Ga]) ratio. The chemical and electronic structures of industry‐relevant Cu(In,Ga)Se2thin‐film photovoltaic absorbers are presented. Compared to the bulk, a pronounced Cu‐depletion is detected at the surface, as well as a Ga‐poor (In‐rich) composition in the topmost region of the material. Of these composition changes, the surface Cu‐deficiency affects the electronic properties of the absorber most strongly.
- Published
- 2019
- Full Text
- View/download PDF
117. Connectivite indifférenciée associée à l’exposition professionnelle au perchloréthylène
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Grimaux, X., Sarre, M.-E., Lozac’h, P., Chevailler, A., Roquelaure, Y., Urbanski, G., and Martin, L.
- Abstract
Les connectivites indifférenciées (undifferentiated connective tissue diseases[UCTD]) sont des maladies systémiques mal classées. Si le caractère inductible des connectivites tels que le lupus ou la sclérodermie est largement décrit ; les études sur les expositions favorisant le développement d’UCTD sont rares. Nous décrivons ici le cas d’une patiente souffrant d’une UCTD en lien avec une exposition professionnelle au perchloréthylène (PCT).
- Published
- 2016
- Full Text
- View/download PDF
118. Laparoscopic biliopancreatic diversion with duodenal switch (LBPD-DS): How long is the learning curve?
- Author
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Topart, Philippe A., Vandenbroucke, Franck, Ferrand, Loic, and Lozac’h, Patrick
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- 2005
- Full Text
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119. Sinusite maxillaire à Trichomonas tenax chez un sidéen
- Author
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Renault, A., Quinio, D., Lozac'h, S.A., Potard, M., Masure, O., and Boles, J.M.
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- 1995
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120. On thein vitrocorticotropin releasing factor (CRF) activity of the heptapeptide: Methionyl-glutaminyl-histidyl-phenylalanyl-arginyl-tryptophyl-glycine
- Author
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Privat de Garilhe, M., Gros, C., Lozac'h, Yveline, and Garnuchot, Bernadette
- Published
- 1962
- Full Text
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121. Front Cover: Fabrication of transparent conducting polymer/GaN Schottky junction for deep level defect evaluation under light irradiation (Phys. Status Solidi A 3/20123)
- Author
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Lozac'h, Mickaël, Nakano, Yoshitaka, Sang, Liwen, Sakoda, Kazuaki, and Sumiya, Masatomo
- Abstract
The analysis of deep level defects of III‐V nitrides (such as GaN or InxGa1‐xN) is critical for the improvement of solar cell properties using these materials as an active layer. Schottky junctions are often used for the detection of level defects by deep level transient spectroscopy or deep level optical spectroscopy. Masatomo Sumiya and coworkers (pp. 470–473) have fabricated a transparent conducting polymer / GaN Schottky junction by using spin coating technique. The Schottky properties exhibited an ideal factor of 1.3, a Schttoky barrier height of 1.15 eV and a leakage current at ‐10 V of ∼10‐6mA/cm2, which was much better than that of a normal Schottky junction using a high workfunction metal like Au. Under irradiation of an AM1.5G solar simulator, the device performed an open circuit voltage of 0.72 V with a high fill factor of 0.71. Utilizing the features of transparency and good Schottky properties, the depletion layer in GaN at the interface beneath the conducting polymer was evaluated under light irradiation in order to detect the defects located in the GaN band‐gap which must give an influence on the photovoltaic properties. This technique can be applied also to InGaN films with lower band‐gap, even more suitable as photovoltaic material of III‐V nitride film.
- Published
- 2013
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122. Phase Separation Resulting from Mg Doping in p-InGaN Film Grown on GaN/Sapphire Template
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Sang, Liwen, Takeguchi, Masaki, Lee, Woong, Nakayama, Yoshiko, Lozac'h, Mickael, Sekiguchi, Takashi, and Sumiya, Masatomo
- Abstract
The spontaneous formation of a two-layered structure in p-InGaN is observed with increasing Mg doping level. X-ray reciprocal space mappings reveal that the two layers are resulted from phase separation with different In contents and strain states. The bottom p-InGaN layer near the GaN template is totally strained with low-density dislocations, while the top layer is relaxed with high-density dislocations. The average In content in the relaxed layer is much higher than that in the totally strained one. The layered structure caused by phase separation is interpreted in terms of the compressive strain increase induced by Mg doping and the strain relaxation by dislocations.
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- 2010
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123. Erratum à « Valeur pronostique de la TEP au FDG dans le bilan initial du cancer de l’œsophage » [Med Nucl 32 (6) (2008) 323–31]
- Author
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Teyton, P., Metges, J.-P., Jestin-Le Tallec, V., Lozac’h, P., Volant, A., Visvikis, D., and Cheze-Le Rest, C.
- Published
- 2008
- Full Text
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124. ChemInform Abstract: Forty Years of Heterocyclic Sulfur Chemistry
- Author
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LOZAC'H, N.
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- 1990
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125. [Acute abdominal pain in a 37-year-old woman].
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Cossec M, Laine JB, Coindre JP, Lozac'h P, Beaudron A, Piot JM, Legendre P, and Nguyen Y
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- Humans, Female, Adult, Abdomen, Acute etiology, Abdomen, Acute diagnosis, Diagnosis, Differential, Abdominal Pain etiology, Abdominal Pain diagnosis
- Published
- 2024
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126. Absence of impact of hypovitaminosis C on the bleeding phenotype of primary immune thrombocytopenia: a French prospective multicenter study.
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Le Marec J, Henique H, Rubenstein E, Bigot A, Puyade M, Urbanski G, Lozac'h P, Allain JS, Bayer G, Fain O, and Lioger B
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- Female, Humans, Male, Phenotype, Prospective Studies, Ascorbic Acid Deficiency physiopathology, Hemorrhage physiopathology, Purpura, Thrombocytopenic, Idiopathic physiopathology
- Published
- 2020
- Full Text
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127. Differences in clinical features between small fiber and sensitive large fiber neuropathies in Sjögren's syndrome.
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Lacout C, Cassereau J, Lozac'h P, Gury A, Ghali A, Lavigne C, Letournel F, and Urbanski G
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- Delayed Diagnosis, Humans, Skin, Peripheral Nervous System Diseases diagnosis, Sjogren's Syndrome complications, Sjogren's Syndrome diagnosis, Small Fiber Neuropathy diagnosis
- Abstract
Background: To distinguish large (LFN) and small fiber neuropathies (SFN) in Sjögren's syndrome (SS) requires electroneuromyography (EMG) first, but this is time-consuming and has sometimes a limited accessibility, which can lead to a diagnostic delay. We aimed to identify clinical features that could distinguish SFN from sensitive LFN in SS., Methods: The study included patients with SS who were monitored in the internal medicine and neurology departments at Angers University Hospital between 2010 and 2016, and who were tested for suspected peripheral neuropathy. Patients with clinical motor involvement were excluded. LFN diagnosis was based on EMG. SFN diagnosis was based on intraepidermal nerve fiber density on skin biopsies in patients with no abnormality on EMG., Results: LFN and SFN were diagnosed respectively in 22 (6.9%) and 17 (5.4%) patients among 317 patients with SS. Prevalence of anti-SSA antibodies was lower in the SFN group compared to the LFN group (p=0.002). The types of paresthesia did not differ between the 2 groups. After adjustment for age and sex, SFN was associated with dysautonomia (p=0.01, OR 8.4 [CI 95%: 1.7-42.4]) and without length-dependent topography (p=0.03, OR 0.2 [0.04-0.8] in comparison with the LFN group., Conclusions: An association of non-length-dependent pattern and dysautonomia seems to predict the absence of LFN in SS and encourages the search for SFN. In contrary, patients with length-dependent involvement and without dysautonomia should be prioritized for EMG., Competing Interests: Declaration of Competing Interest None., (Copyright © 2020 European Federation of Internal Medicine. Published by Elsevier B.V. All rights reserved.)
- Published
- 2020
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128. Pasteurella bacteraemia: Impact of comorbidities on outcome, based on a case series and literature review.
- Author
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Chatelier E, Mahieu R, Hamel JF, Chenouard R, Lozac'h P, Sallé A, Kouatchet A, Martin L, Lavigne C, Pailhoriès H, and Urbanski G
- Subjects
- Aged, Bacteremia epidemiology, Bacteremia microbiology, Bacteremia mortality, Comorbidity, Female, Humans, Male, Middle Aged, Multivariate Analysis, Pasteurella Infections epidemiology, Pasteurella Infections mortality, Retrospective Studies, Systematic Reviews as Topic, Bacteremia complications, Pasteurella, Pasteurella Infections complications
- Abstract
Objectives: Pasteurella bacteraemia is rare, but has been associated with a high mortality rate. The aim of this study was to estimate the impact of comorbidities on patients with Pasteurella bacteraemia., Methods: All cases of Pasteurella bacteraemia in adults treated in our centre between January 2008 and December 2017 were included retrospectively and compared with cases identified in a systematic review of the literature via MEDLINE covering the years 1951-2017. The epidemiological, bacteriological, and clinical data were collected, as well as the instances of death after 30 days., Results: Twenty cases of Pasteurella bacteraemia identified in our centre and 99 cases from the literature review were included. A major comorbidity was found in 80/119 (67.2%) patients. The death rate at 30 days was 31.1%. The most common comorbidities were cirrhosis, immunosuppressive therapy, and malignant diseases. Age was not associated with mortality. On multivariate analysis, the only factor associated with mortality was a major comorbidity (odds ratio 2.78, 95% confidence interval 1.01-7.70; p = 0.04)., Conclusions: This study confirms the high mortality rate and highlights the importance of the host background, independent of age, in Pasteurella bacteraemia. Clinicians should be aware of the comorbidities in cases of Pasteurella infection, due to the poor prognosis of bacteraemia., (Copyright © 2020 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2020
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129. Strength of the Association of Elevated Vitamin B12 and Solid Cancers: An Adjusted Case-Control Study.
- Author
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Urbanski G, Hamel JF, Prouveur B, Annweiler C, Ghali A, Cassereau J, Lozac'h P, Lavigne C, and Lacombe V
- Abstract
The association between elevated plasma vitamin B12 (B12) level and solid cancers has been documented by two national registries. However, their design did not allow for the adjustment for other conditions associated with elevated B12. The objectives of this study were to confirm this association after the adjustment for all causes of elevated B12, and to study the variations according to the increasing B12 level, the type of cancers, and the presence of metastases. We compared 785 patients with B12 ≥ 1000 ng/L with 785 controls matched for sex and age with B12 < 1000 ng/L. Analyses were adjusted for the causes of elevated B12: myeloid blood malignancies, acute or chronic liver diseases, chronic kidney failure, autoimmune or inflammatory diseases, and excessive B12 supplementation. A B12 ≥ 1000 ng/L was associated with the presence of solid cancer without metastases (OR 1.96 [95%CI: 1.18 to 3.25]) and with metastases (OR 4.21 [95%CI: 2.67 to 6.64]) after adjustment for all elevated B12-related causes. The strength of the association rose with the increasing B12 level, in particular in cases of metastases. No association between liver cancers and elevated B12 level was found after adjustment for chronic liver diseases. In conclusion, unexplained elevated B12 levels should be examined as a possible marker of solid cancer.
- Published
- 2020
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130. Elevated blood lactate in resting conditions correlate with post-exertional malaise severity in patients with Myalgic encephalomyelitis/Chronic fatigue syndrome.
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Ghali A, Lacout C, Ghali M, Gury A, Beucher AB, Lozac'h P, Lavigne C, and Urbanski G
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- Adolescent, Adult, Female, Humans, Male, Middle Aged, Retrospective Studies, Young Adult, Fatigue Syndrome, Chronic blood, Lactates blood, Severity of Illness Index
- Abstract
Elevated blood lactate after moderate exercise was reported in some of patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). We hypothesised that blood lactate could be also elevated in resting conditions. We aimed investigating the frequency of elevated lactate at rest in ME/CFS patients, and comparing characteristics of ME/CFS patients with and without elevated lactate. Patients fulfilling international consensus criteria for ME/CFS who attended the internal medicine department of University hospital Angers-France between October 2011 and December 2017 were included retrospectively. All patients were systematically hospitalised for an aetiological workup and overall assessment. We reviewed their medical records for data related to the assessment: clinical characteristics, comorbidities, fatigue features, post-exertional malaise (PEM) severity, and results of 8 lactate measurements at rest. Patients having ≥1 lactate measurement ≥2 mmol/L defined elevated lactate group. The study included 123 patients. Elevated (n = 55; 44.7%) and normal (n = 68; 55.3%) lactate groups were comparable except for PEM, which was more severe in the elevated lactate group after adjusting for age at disease onset, sex, and comorbidities (OR 2.47, 95% CI: 1.10-5.55). ME/CFS patients with elevated blood lactate at rest may be at higher risk for more severe PEM. This finding may be of interest in ME/CFS management.
- Published
- 2019
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131. Prognostic value of initial fluorodeoxyglucose-PET in esophageal cancer: a prospective study.
- Author
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Cheze-Le Rest C, Metges JP, Teyton P, Jestin-Le Tallec V, Lozac'h P, Volant A, and Visvikis D
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- Adult, Aged, Aged, 80 and over, Female, France epidemiology, Humans, Male, Middle Aged, Prevalence, Prognosis, Prospective Studies, Radiopharmaceuticals, Reproducibility of Results, Sensitivity and Specificity, Survival Analysis, Survival Rate, Esophageal Neoplasms diagnostic imaging, Esophageal Neoplasms mortality, Fluorodeoxyglucose F18, Positron-Emission Tomography statistics & numerical data, Risk Assessment methods
- Abstract
Objectives: Esophageal cancer outcome greatly depends on the pathological stage. Our objectives were to assess prognosis on the basis of the initial fluorodeoxyglucose (FDG)-PET scan, focusing on the correlation between overall survival and FDG uptake in the primary, as well as the presence of FDG-positive lymph nodes or distant metastases., Methods: Fifty-two esophageal cancer patients undergoing FDG-PET as part of initial routine staging procedure before treatment were included. The maximum standardized uptake value (SUV max) was determined in each primary lesion and the number of abnormalities including primary, lymph nodes, or distant metastases was recorded. Correlation with overall survival was performed using Kaplan-Meier method and Cox regression analysis was used to assess the prognostic value of PET parameters., Results: Half of the patients were planned for initial curative surgery (52%). Using univariate survival analysis, either surgery, SUV max >9, two or more PET abnormalities or the presence of FDG-positive nodes were significant overall survival prognostic predictors. After multivariate analysis, only SUV max >9 and FDG-positive lymph nodes were found as independent predictors of poor outcome., Conclusion: In this prospective study, FDG-PET was found to provide prognostic information supporting a new indication for initial FDG-PET examination in esophageal cancer.
- Published
- 2008
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132. Metachronous cancer of gastroplasty after esophagectomy.
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Atmani A, Topart P, Vandenbroucke F, Louzi A, Ferrand L, and Lozac'h P
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- Aged, Anastomosis, Roux-en-Y, Anastomosis, Surgical, Carcinoma, Squamous Cell surgery, Fatal Outcome, Gastrectomy, Gastroplasty, Humans, Lymph Node Excision, Male, Stomach transplantation, Adenocarcinoma surgery, Esophageal Neoplasms surgery, Esophagectomy, Neoplasms, Second Primary, Postoperative Complications, Stomach Neoplasms surgery
- Abstract
We reviewed two cases of adenocarcinoma of the gastric tube used for reconstruction after esophagectomy for cancer. The first case gastric cancer was detected during follow-up by endoscopic examination. Total resection of the gastric tube and reconstruction by Roux-en-Y was performed each time. The patient was alive and disease-free 1 year after surgery. In the second case the tumor was revealed via thoracic pain. Chemotherapy, using carboplatin-5-fluorouracil, was performed because of lung metastasis but the patient died 1 year later. The incidence of gastric tube cancer after esophagectomy has recently increased in conjunction with the lengthening of survival of esophageal cancer patients. The clinical symptoms related to tumors are associated with short-term survival, whereas the cancers detected by routine endoscopy screening have occasional long-term survival. Gastrectomy is proposed for surgical treatment but the operating procedure is complex with a high morbidity rate. Lesions detected at an early stage could be treated by minimally invasive surgery such as endoscopic mucosal resection.
- Published
- 2006
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133. Mortality and morbidity after resection for adenocarcinoma of the gastroesophageal junction: predictive factors.
- Author
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Sauvanet A, Mariette C, Thomas P, Lozac'h P, Segol P, Tiret E, Delpero JR, Collet D, Leborgne J, Pradère B, Bourgeon A, and Triboulet JP
- Subjects
- Actuarial Analysis, Adenocarcinoma mortality, Adenocarcinoma pathology, Adult, Aged, Aged, 80 and over, Esophageal Neoplasms mortality, Esophageal Neoplasms pathology, Female, France epidemiology, Hospital Mortality, Humans, Logistic Models, Male, Middle Aged, Morbidity, Multivariate Analysis, Neoadjuvant Therapy, Neoplasm Staging, Retrospective Studies, Risk Factors, Stomach Neoplasms mortality, Stomach Neoplasms pathology, Surveys and Questionnaires, Survival Analysis, Adenocarcinoma surgery, Esophageal Neoplasms surgery, Esophagectomy adverse effects, Esophagectomy methods, Esophagectomy mortality, Esophagogastric Junction, Gastrectomy adverse effects, Gastrectomy methods, Gastrectomy mortality, Stomach Neoplasms surgery
- Abstract
Background: Resection for adenocarcinoma of the gastroesophageal junction (AGEJ) is associated with severe mortality and morbidity. This retrospective study aimed to evaluate mortality and morbidity after resection for AGEJ and to determine their predictive factors., Study Design: Data from 1,192 patients (mean age 65 +/- 11 years) who underwent resection for AGEJ by members of French Association of Surgery from 1985 to 2000 were collected. A stepwise logistic regression model was built to identify by multivariate analysis the variables independently associated with mortality, morbidity, anastomotic leakage, and major pulmonary complications., Results: Distribution of Siewert's type was: I = 480 (40%), II = 500 (42%), and III = 212 (18%). Most type I and II tumors were treated by esophagectomy and proximal gastrectomy (93% and 58%, respectively), using an approach including a thoracotomy (82% and 64%, respectively); type III tumors were treated mainly by total gastrectomy and distal esophagectomy (83%), through an exclusive transabdominal approach (69%). Seventy-six (6%) patients died postoperatively. Only American Society of Anesthesiologists (ASA) scores III and IV (p < 0.001) and period of study (p = 0.025) were predictive of mortality. Predictive factors of overall morbidity (overall rate = 35%) were high ASA score (p < 0.001), age more than 60 years (p = 0.020), male gender (p = 0.039), and cervical anastomosis (p = 0.001). Factors predictive of anastomotic leakage (overall rate = 9%) were high ASA score (p = 0.006) and manual anastomosis (p = 0.010). Factors predictive of major pulmonary complications (overall rate = 23%) were high ASA score (p = 0.015), age more than 60 years (p < 0.001), anastomotic leakage (p < 0.001), and abdominal complications (p = 0.003)., Conclusions: ASA score is a reliable predictive factor of operative mortality and morbidity after resection of AGEJ.
- Published
- 2005
- Full Text
- View/download PDF
134. Diffuse EGFR staining is associated with reduced overall survival in locally advanced oesophageal squamous cell cancer.
- Author
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Gibault L, Metges JP, Conan-Charlet V, Lozac'h P, Robaszkiewicz M, Bessaguet C, Lagarde N, and Volant A
- Subjects
- Aged, Carcinoma, Squamous Cell metabolism, Esophageal Neoplasms metabolism, Female, Humans, Immunohistochemistry, Male, Middle Aged, Neoplasm Metastasis, Neoplasm Recurrence, Local, Prognosis, Proto-Oncogene Proteins c-kit metabolism, Retrospective Studies, Survival Rate, Tumor Suppressor Protein p53 metabolism, Vascular Endothelial Growth Factor A metabolism, Carcinoma, Squamous Cell pathology, ErbB Receptors metabolism, Esophageal Neoplasms pathology
- Abstract
Squamous cell carcinoma of the oesophagus (SCCO) is still a pathology of bad prognosis. Specific therapies are now developed against epidermal growth factor receptor (EGFR), human epidermal growth factor receptor 2, c-kit receptor (CD117), vascular endothelial growth factor (VEGF) and p53 protein. This study was aimed at assessing their expression in a large series of SCCO, as well as their potential therapeutic interest in this pathology. Immunohistochemical expression of these factors was assessed retrospectively in 107 cases of SCCO with primary surgery, as well as their relationships to recurrence, metastasis and overall survival on a long-term follow-up. Human epidermal growth factor receptor 2 and CD117 were expressed in less than 3% of the cases. Epidermal growth factor receptor and p53 were overexpressed in 68.2 and 66.4% of the cases, and VEGF in 38.3%. Epidermal growth factor receptor overexpression was significantly related to vascular invasion (P=0.023). Its diffuse positivity was significantly related in multivariate analysis to higher local recurrence (P=0.006) and lower overall survival (P=0.003), in a subgroup of patients of poor outcome who had received postoperative adjuvant treatment. These results highlight the great potential prognostic and therapeutic interest of evaluating EGFR diffuse positivity in locally advanced SCCO.
- Published
- 2005
- Full Text
- View/download PDF
135. Gastric cancer: the French survey.
- Author
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Meyer Ch, Lozac'h P, Rohr S, Topar P, and Youssef Ch
- Subjects
- Aged, Female, France epidemiology, Humans, Male, Multivariate Analysis, Retrospective Studies, Stomach Neoplasms surgery, Survival Rate, Stomach Neoplasms epidemiology
- Abstract
Presentation of a multicentric retrospective french study concerning 4,655 cases of gastric cancer operated between 1980 and 1996. The mean age was 67.4 years old with a male predominance of 63.1%. Pains was the predominant presenting symptom (60%) followed by alteration of the general condition (44%) and anaemia (20%). 35.5% of tumors were of distal, 18.8% of middle and 18.6% of proximal localisation. As regard cancer stages, 40% were of stage I,-II and 60% of stages III,-IV. Subtotal gastrectomy was realised in 44%, total radical gastrectomy in 42.1% and other surgical procedures in 14% of cases (proximal gastric resection or atypical resection). D1 lymphadenectomy was associated in 58.4% and D2 in 41.6%. Morbidity was of 23% and mortality of 11.9% which passed from 19% during the first (1980,-85) to 8% in the last interval of time (1990,-96). The 5 years survival was 41% in case of gastric resection. In univariate analysis the 5 years relative survival was better in female patients (44% at 5 years), in patients younger than 50 years old (46%), when pain was the only clinical symptom (52.7%), in middle and distal third localisation (47%), in case of subtotal distal resection (47%) and in less advanced stages (79% at 5 years for stage I cancer). In multivariate analysis the 5 years survival was essentially correlated to the stage of the tumor and no real prognosis improvement was shown during the period of the study.
- Published
- 2002
136. Infrequent p16/CDKN2 alterations in squamous cell carcinoma of the oesophagus.
- Author
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Giroux MA, Audrezet MP, Metges JP, Lozac'h P, Volant A, Nousbaum JB, Labat JP, Gouérou H, Ferec C, and Robaszkiewicz M
- Subjects
- Aged, Chromosomes, Human, Pair 9, Electrophoresis, Polyacrylamide Gel, Female, Humans, Loss of Heterozygosity, Male, Microsatellite Repeats, Middle Aged, Mutation, Polymerase Chain Reaction, Carcinoma, Squamous Cell genetics, Esophageal Neoplasms genetics, Genes, p16
- Abstract
Loss of heterozygosity (LOH) on chromosome 9 and p16 (MTS1/CDKN2) gene mutations have been reported in various human cancers. The present study aimed to determine the prevalence of LOH in 100 oesophageal squamous cell carcinomas (OSCCs) by typing microsatellite loci and mutations of the p16 gene. The methods used included denaturing gradient gel electrophoresis (DGGE) and DNA sequencing of exon 2. LOH was found in 14.7% of the OSCC cases. Six gene alterations were identified in exon 2. They consisted of three deletions and the same polymorphism in three samples. The relatively low rate of p16 mutation compared with the frequency of LOH suggests the possible involvement of another tumour suppressor gene located on chromosome 9 in oesophageal carcinogenesis.
- Published
- 2002
- Full Text
- View/download PDF
137. [Cancer of the lower esophagus and the cardia].
- Author
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Lozac'h P
- Subjects
- Adenocarcinoma surgery, Cardia surgery, Esophageal Neoplasms surgery, Esophagectomy, Gastrectomy, Humans, Lymph Node Excision, Neoadjuvant Therapy, Stomach Neoplasms surgery, Adenocarcinoma pathology, Cardia pathology, Esophageal Neoplasms pathology, Stomach Neoplasms pathology
- Published
- 1997
138. [Adenocarcinoma of the Barrett esophagus. Apropos of 44 resected cases].
- Author
-
Lozac'h P, Topart P, and Volant A
- Subjects
- Actuarial Analysis, Adenocarcinoma pathology, Adult, Aged, Aged, 80 and over, Antimetabolites, Antineoplastic administration & dosage, Antineoplastic Agents administration & dosage, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Barrett Esophagus pathology, Cardia pathology, Cardia surgery, Chemotherapy, Adjuvant, Cisplatin administration & dosage, Esophageal Neoplasms pathology, Female, Fluorouracil administration & dosage, Follow-Up Studies, Humans, Longitudinal Studies, Male, Middle Aged, Radiotherapy Dosage, Radiotherapy, Adjuvant, Stomach Neoplasms pathology, Stomach Neoplasms surgery, Survival Rate, Treatment Outcome, Adenocarcinoma surgery, Barrett Esophagus surgery, Esophageal Neoplasms surgery, Esophagectomy
- Published
- 1997
139. [Split-course concomitant radiochemotherapy plus surgery vs. surgery alone in squamous cell carcinoma of the esophagus. A non-randomized retrospective study of 184 patients].
- Author
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Malhaire JP, Lozac'h P, Simon H, Labat JP, Topart P, Lucas B, Metges JP, and Lamezec B
- Subjects
- Adult, Age Factors, Aged, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Carcinoma, Squamous Cell mortality, Carcinoma, Squamous Cell pathology, Cisplatin administration & dosage, Cisplatin adverse effects, Combined Modality Therapy, Esophageal Neoplasms mortality, Esophageal Neoplasms pathology, Esophagectomy adverse effects, Female, Fluorouracil administration & dosage, Fluorouracil adverse effects, Humans, Male, Middle Aged, Neoplasm Staging, Radiotherapy Dosage, Retrospective Studies, Survival Rate, Treatment Outcome, Carcinoma, Squamous Cell therapy, Esophageal Neoplasms therapy
- Abstract
From April 1989 to October 1995, 184 patients with squamous cell carcinomas of the esophagus were treated either with surgery alone (112 patients) or with preoperative concomitant radiochemotherapy (72 patients) (2 courses of 18.5 Gy in 5 fractions, days 1-5 with continuous infusion 5-fluorouracil (5-FU) days 1-5 and cisplatinum day 2, separated by a 2-week interval) followed by surgery, and by 4 more courses of chemotherapy alone for good responders. Twenty-seven of these last 72 patients showed histological complete response at surgery (37.5%). There was no statistically significant difference in overall survival between the 2 groups although there were much more T1 patients (small tumors < or = 5 cm in the previous TNM classifications) and less T3 patients (evidence of spread beyond the esophagus) in the surgery alone group, and nevertheless, median survival was better in the combined treatment group (33.6 months versus 21.8 months). However, considering tumor size, there was a statistically significant difference in median survival in favor of the combined treatment group for all T2 patients (> 5 cm without evidence of spread beyond the esophagus in the previous TNM classification) (48.6 months versus 13.8 months), both for T2N0 and T2N1 patients, but also for T1N1 patients (< or = 5 cm with nodal involvement). For the few T3 patients (evidence of spread beyond the esophagus in the previous TNM classification), there was no statistically significant difference between the 2 groups, but the survival curves seemed to show some advantage in favor of the combined treatment group for T3N1 patients. The sex of the patients and the third of the esophagus involved by the tumor did not seem to be of any influence on survival. On the other hand, patients 70-year-old and older showed a poorer survival than other patients. Finally, significantly less patients died with loco-regional recurrences in the preoperatory radiochemotherapy group (32% versus 48%) than in the group treated by surgery alone.
- Published
- 1997
140. [Intrathoracic anastomosis after esophagectomy for cancer].
- Author
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Lozac'h P
- Subjects
- Anastomosis, Surgical methods, Esophagoplasty methods, Gastroplasty methods, Humans, Prognosis, Esophageal Neoplasms surgery, Esophagectomy methods, Thoracic Surgical Procedures methods
- Published
- 1997
141. [Stage T1 squamous cell carcinoma of the esophagus. Apropos of a series of 45 cases].
- Author
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Ahanda-Assiga YM, Abiven M, Topart P, and Lozac'h P
- Subjects
- Actuarial Analysis, Adult, Aged, Combined Modality Therapy, Esophagoscopy, Female, Follow-Up Studies, Humans, Male, Middle Aged, Neoplasm Recurrence, Local, Neoplasm Staging, Prognosis, Carcinoma, Squamous Cell diagnosis, Carcinoma, Squamous Cell therapy, Esophageal Neoplasms diagnosis, Esophageal Neoplasms therapy
- Published
- 1997
142. [Ivor Lewis surgical procedure for epidermoid cancer of the esophagus. Apropos of 264 cases].
- Author
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Lozac'h P, Topart P, Khoury-Helou A, Volant A, and De Tinteniac A
- Subjects
- Actuarial Analysis, Anastomosis, Surgical methods, Carcinoma, Squamous Cell pathology, Combined Modality Therapy, Esophageal Neoplasms pathology, Esophagectomy adverse effects, Humans, Male, Prognosis, Prospective Studies, Thoracotomy, Carcinoma, Squamous Cell surgery, Esophageal Neoplasms surgery, Esophagectomy methods
- Published
- 1997
143. [Stage T3 squamous cell carcinoma of the esophagus. Value of exclusive surgical excision and analysis of prognosis factors].
- Author
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Tabech AZ, Topart P, Vandenbroucke F, Miossec A, and Lozac'h P
- Subjects
- Carcinoma, Squamous Cell pathology, Esophageal Neoplasms pathology, Esophagectomy adverse effects, Esophagectomy methods, Follow-Up Studies, Humans, Karnofsky Performance Status, Neoplasm Staging, Prognosis, Survival Analysis, Carcinoma, Squamous Cell surgery, Esophageal Neoplasms surgery
- Abstract
75 patients with an epidermoid carcinoma of the esophagus were studied. They all were stage T3 with or without lymph node involvement but without distant metastasis (T3 N0 M0 or T3 N+, M0). All the patients had a curative esophagectomy according to the Ivor Lewis procedure without any adjuvant treatment. In hospital mortality was 4%. There is a 28% 5 year actuarial survival in this group of patients where 60% had lymph node involvement. None of the 13 prognostic factors showed a significant relevance with respect to survival after an univariate analysis. Meanwhile surgical treatment ensured good digestive comfort and good quality of life at home.
- Published
- 1997
144. [Complications of colostomies. Follow-up study of 500 colostomized patients].
- Author
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Andivot T, Bail JP, Chio F, Juglard G, Topart P, Lozac'h P, and Charles JF
- Subjects
- Abscess surgery, Adult, Aged, Aged, 80 and over, Colon surgery, Colonic Diseases surgery, Colorectal Neoplasms surgery, Female, Follow-Up Studies, Herniorrhaphy, Humans, Male, Middle Aged, Necrosis, Postoperative Complications, Reoperation, Retrospective Studies, Abscess etiology, Colon pathology, Colonic Diseases etiology, Colostomy adverse effects, Hernia etiology
- Abstract
The complications of colostomies may constitute a handicap for patients: their prevalence severity and methods of treatment remain poorly known. 500 colostomy patients, with a mean age of 66 +/- 14 years, were retrospectively reviewed. The mean follow-up of the study was 6 +/- 5 years. Colorectal cancers represented 65% of the initial diseases. 59.5% of colostomies were terminal. They were performed for resection of the colon and or rectum in 56.5% of cases. 30.5% of patients (n = 152) presented complications (n = 235). The early complications (n = 147) observed in 29.5% of patients were mostly benign (20 required emergency operations). The late complications (n = 88), observed in 22.5% of 391 patients with a follow-up of more than one year required another operation in 1/3 of cases (11 cases of stenosis, 9 incisional hernias and 8 prolapses). Complications of colostomies remain frequent (one out of every 4 stomies ends in a complication) and the reoperation rate is situated between 13 and 33%. The therapeutic success rate of late reoperation is between 63 and 74%. When a reoperation is necessary, it should be ideally radical via a midline incision. The transposition technique gives better results than the repositioning technique via a local approach.
- Published
- 1996
145. Molecular analysis of the TP53 gene in Barrett's adenocarcinoma.
- Author
-
Audrézet MP, Robaszkiewicz M, Mercier B, Nousbaum JB, Hardy E, Bail JP, Volant A, Lozac'h P, Gouérou H, and Férec C
- Subjects
- Adenocarcinoma pathology, Barrett Esophagus pathology, Base Sequence, DNA Primers, Electrophoresis, Polyacrylamide Gel, Esophageal Neoplasms pathology, Exons, Female, Humans, Male, Molecular Sequence Data, Mutation, Neoplasm Staging, Nucleic Acid Denaturation, Polymerase Chain Reaction, Sequence Analysis, Adenocarcinoma genetics, Barrett Esophagus genetics, Esophageal Neoplasms genetics, Genes, p53 genetics
- Abstract
The TP53 gene is the most frequently mutated gene in human cancers. Barrett's esophagus provides an excellent model by which to understand the genetic events that lead from dysplasia to cancer. We screened for mutations in the TP53 gene by a combination of denaturing gradient gel electrophoresis and DNA sequencing in ten cases of adenocarcinoma arising in Barrett's mucosa. We have identified missense mutations in five of the ten samples, three transitions (R282W, G245S, R248W) and two transversions (E286Q and C176F). In one case we have analyzed biopsy specimens taken from the same site, one year before the patient developed an intra mucosal carcinoma. The mutation that was identified in this high grade dysplastic area was identical to that detected in the cancer. This would suggest TP53 mutations occur as an early genetic event in the development of Barrett's adenocarcinoma.
- Published
- 1996
- Full Text
- View/download PDF
146. [Current perspectives in the treatment of epidermoid cancer of the esophagus].
- Author
-
Lozac'h P
- Subjects
- Antineoplastic Combined Chemotherapy Protocols therapeutic use, Carcinoma, Squamous Cell diagnostic imaging, Carcinoma, Squamous Cell mortality, Cisplatin therapeutic use, Combined Modality Therapy, Esophageal Neoplasms diagnostic imaging, Esophageal Neoplasms mortality, Fluorouracil therapeutic use, Humans, Lymph Node Excision, Postoperative Complications, Radiography, Ultrasonography, Carcinoma, Squamous Cell therapy, Esophageal Neoplasms therapy
- Abstract
Prior to the eighties, most patients with a diagnosis of epidermoid oesophageal cancer only received palliative symptomatic care. To date, most all undergo either surgery or medical treatment or both. Late diagnosis due to lack of clinical signs in the early phases of the disease, and perhaps insufficient attempts at identifying patients at risk who could benefit from systematic screening, is still an important problem although the number of diagnosed cases continues to rise (from 104 in 1985 to 151 in 1989 in Finistere in western France). Two different therapeutic attitudes could improve the prognosis: extensive surgery as proposed by the Japonese with dissection of all invaded lymph nodes whatever the localization and a multimodal approach combining radiochemotherapy and surgery. Although outcome can apparently be improved in certain types of oesophageal cancer, the proposal of aggressive extensive dissection could have an effect on respiratory complications and would not necessarily be adapted to the risk involved in western patients. Certain teams have nevertheless taken this route and will soon report their results. In France two phase II trials combining radiotherapy, chemotherapy (cisplatinum) and surgery have reported encouraging results with complete sterilization in 24% of the cases and 50% survival at 18 months. In our own series of 68 patients, we have obtained 41% sterilization and 56.3% survival at 3 years with the multi-modal protocol. The high number of non-responders to chemotherapy emphasies the importance of maintaining surgical resection whenever possible. The discouraging reports published before 1980 have been contradicted by improvements in outcome achieved over the last decade. Today, all patients with a diagnosis of epidermoid cancer of the oesophagus should benefit from either palliative or curative care based on the latest advances in radiotherapy, chemotherapy and surgery.
- Published
- 1995
147. [Fistulas after Lewis-Santy's operations. Diagnosis, treatment, prevention].
- Author
-
Lozac'h P, Topart P, Bail JP, Quigno P, and Prunier F
- Subjects
- Adenocarcinoma surgery, Adult, Aged, Aged, 80 and over, Carcinoma, Squamous Cell surgery, Drainage, Esophageal Fistula diagnosis, Esophageal Fistula prevention & control, Esophageal Fistula surgery, Esophageal Neoplasms surgery, Gastric Fistula diagnosis, Gastric Fistula prevention & control, Gastric Fistula surgery, Humans, Middle Aged, Postoperative Complications, Reoperation, Anastomosis, Surgical adverse effects, Esophageal Fistula etiology, Gastric Fistula etiology
- Abstract
Fistulas of the anastomosis is the most severe complication after the Lewis-Santy operation. Over the last 10 years, we have performed 227 such operations for cancer of the oesophagus and have observed 16 fistulizations (7%). The aim of this study was to analyze the clinical manifestations and laboratory findings in these cases of fistulization as a function of the site of the plasty, the treatment and the results. We attempted to determine factors which could lead to means of preventing this complication. The fistula occurred at the oeso-gastric anastomosis in 11 cases (4.8%), at the apex of the gastric tube in 2 and on the line of gastric tubulization in 3. A comparison between patients with fistulas (group 1) and those without (group 2) showed that 19% of the patients in group 1 were over 70 years of age versus 9% in group 2 (NS). Three of the 16 patients (19%) with fistula had cirrhosis due to ethylism versus 2 of the 211 patients in group 2 (p < 0.001). Six patients among the 58 with palliative with a fistula (6%) (NS). Thoracic drainage was sufficient in 11 patients and surgical treatment was not required. In 5 reoperation (thoracotomy 4, cervicotomy 1) was necessary due to an intrapleural abscess. After 227 Lewis-Santy operations, 11 patients died during hospitalization (4.8%, 4 of which were complicated with fistula (1.7% of the operated patients and 25% of the patients with fistulas). The frequency of fistulizations after Lewis-Santy operation has decreasing (8%) and the gravity has improved (3 out of 4 were cured).(ABSTRACT TRUNCATED AT 250 WORDS)
- Published
- 1994
148. TP53 gene mutation profile in esophageal squamous cell carcinomas.
- Author
-
Audrézet MP, Robaszkiewicz M, Mercier B, Nousbaum JB, Bail JP, Hardy E, Volant A, Lozac'h P, Charles JF, and Gouéron H
- Subjects
- Adult, Aged, Base Sequence, DNA Damage, Female, Humans, Male, Middle Aged, Molecular Sequence Data, Mutation, Carcinoma, Squamous Cell genetics, Esophageal Neoplasms genetics, Genes, p53
- Abstract
Esophageal squamous cell carcinoma is a form of cancer occurring most commonly in males, particularly those living in some areas of Asia, Africa, and western Europe. In some of these tumors, a sequence alteration has been identified in the coding region of the TP53 gene which is known to inactivate the tumor suppressor function of its product. Using a GC clamp (i.e., a GC rich domain) denaturing gradient gel electrophoresis assay we have been able to identify sequence modifications in 27 of the 32 tumor samples analyzed (84%). Most of the mutations occur in exon 6, a region of the gene which has not previously been reported as being a hot spot for the mutations of other cancers. Twelve of the mutations reported here have not been described in other types of tumors and these consist mostly of frameshift or splice mutations. The distribution of mutations [transitions (45%), transversions (34%), and frameshift (21%)] suggests that the etiological contribution of genotoxic factors might be complex and might associate different exogenous and endogenous mutagen exposures.
- Published
- 1993
149. Comparison of levels of cytochromes P-450, CYP1A2, CYP2E1, and their related monooxygenase activities in human surgical liver samples.
- Author
-
Lucas D, Berthou F, Dréano Y, Lozac'h P, Volant A, and Ménez JF
- Subjects
- Adult, Aged, Aged, 80 and over, Cytochrome P-450 CYP1A2, Female, Humans, Liver enzymology, Liver Diseases, Alcoholic enzymology, Male, Middle Aged, Smoking adverse effects, Smoking pathology, Cytochrome P-450 Enzyme System metabolism, Liver pathology, Liver Diseases, Alcoholic pathology, Oxidoreductases metabolism, Oxygenases metabolism
- Abstract
Hepatic microsomal cytochromes P-450 CYP1A2, and CYP2E1 contents and catalytic activities have been simultaneously investigated in 42 patients undergoing diagnostic liver biopsy. CYP1A2 contents, measured by Western blotting, were correlated with methoxyresorufin-O-demethylation and ethoxyresorufin-O-deethylation (r = 0.65 and r = 0.66, p < 0.001, respectively). CYP2E1 contents were correlated with 1-butanol oxidation and 6-hydroxylation of chlorzoxazone (r = 0.75 for both, p < 0.001). CYP1A2 catalytic activities varied by 30- to 40-fold, whereas CYP2E1 activities varied by 6- to 20-fold. In our study, these variations were not related to liver diseases or cancer of the digestive tract nor to alcohol drinking or smoking habits, because patients were alcohol- and tobacco-free for 1 month before the study. Other environmental factors, diet habits, and/or genetic factors could explain the large interindividual variations observed.
- Published
- 1993
- Full Text
- View/download PDF
150. [Ivor Lewis' operation for epidermoid cancer of the esophagus. Immediate and late results. Apropos of 168 cases].
- Author
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Lozac'h P, Topart P, Volant A, Perrament M, Gouerou H, and Charles JF
- Subjects
- Adult, Aged, Aged, 80 and over, Anastomosis, Surgical, Carcinoma, Squamous Cell mortality, Carcinoma, Squamous Cell pathology, Esophageal Neoplasms mortality, Esophageal Neoplasms pathology, Esophagogastric Junction surgery, Female, Follow-Up Studies, Humans, Male, Mediastinal Neoplasms secondary, Middle Aged, Neoplasm Recurrence, Local, Carcinoma, Squamous Cell surgery, Esophageal Neoplasms surgery, Esophagectomy methods, Esophagus surgery, Stomach surgery
- Abstract
168 Ivor Lewis operations for squamous carcinoma of the lower esophagus are reviewed. 155 men and 13 women with a mean age of 59 years were operated on. 46 tumors were stage I and II, and 122 were stage III. Operations were considered to be curative for 120 patients and only palliative for 48. An esophagectomy associated with lymphadenectomy was performed through laparotomy and right thoracotomy. Feeding jejunostomy and pyloroplasty were routine. EEA or ILS 25 staplers were used to perform esophagogastric anastomosis and the gastroplasty tube was fashioned by TA 90 stapler. In every case an extended esophagectomy was performed with anastomosis between 3 ans 7 cm below the pharyngo-esophageal junction. Postoperative mortality was 4.7%. There were 10 leaks (6%) and 28 pulmonary complications. Median actuarial survival is 17 months. Actuarial survival at 2 years is significantly greater for stages I and II (68.4%) than for stage III (23.2%) (p < 0.01). Ivor Lewis esophagectomy is a reliable procedure to treat squamous carcinoma of the lower two thirds of the esophagus ensuring a good quality of life.
- Published
- 1992
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