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Abstract
Pelvic floor dysfunctions are a complex condition in elderly women; pelvic organ prolapse, urinary or fecal incontinence, constipation, pelvic pain, and sexual dysfunction are common problems. The goal of surgical treatment is functional reconstruction with symptom management and repair of anatomic defects. The recent advancements in surgical treatment of pelvic floor dysfunction allow several good options for choosing the best surgery for each patient. The vaginal procedure is traditionally the gold standard approach for elderly patients, but abdominal surgery is increasing as a mini-invasive approach and the robotic approach is gaining acceptance for treatment of pelvic floor dysfunctions. In elderly individuals, a multitude of factors affects the final result of any reconstructive surgery such as postmenopausal or aging-associated changes in muscle tone and nerve function or changes in the function of the bladder or of the rectum: an understanding of the underlining functional status of pelvic organs is very important in aging women before proceeding to surgery. In this context, pelvic floor dysfunction, particularly in elderly women, should be addressed in a multidisciplinary manner and, at the forefront, centers for surgical planning could be helpful to perform safer, patient-tailored surgery.
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Cranberry, D-mannose and anti-inflammatory agents prevent lower urinary tract symptoms in women undergoing prolapse surgery. Climacteric 2019; 23:201-205. [DOI: 10.1080/13697137.2019.1679110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Delayed delivery of the second twin: Case report and literature review of diamniotic dichorionic twin pregnancy with very early preterm premature rupture of membranes. Case Rep Womens Health 2019; 22:e00104. [PMID: 30976524 PMCID: PMC6439313 DOI: 10.1016/j.crwh.2019.e00104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 02/20/2019] [Accepted: 02/26/2019] [Indexed: 12/02/2022] Open
Abstract
In multiple pregnancies with threatened premature delivery or preterm premature rupture of membranes (pPROM) of a single sac, prolonging pregnancy after the delivery of the first baby may improve the chances of survival of the second baby. We report the delayed delivery of a second baby in a twin pregnancy with pPROM and very premature delivery of the first baby. This condition is exceptional and there are no validated medical protocols for its management; the scientific evidence is still controversial. In our case, after the birth of the first baby, pregnancy was continued for 29 days, with monitoring of maternal and fetal parameters, which enabled the delivery of the second baby with improved neonatal outcomes. This case supports the prolongation of the pregnancy of the second twin. Delayed delivery of the second twin could be an option in very early preterm twin pregnancies. Delayed delivery could improve the chances of survival of the second twin. Delayed delivery could improve the well-being of the second twin. It is very important to perform strict monitoring in these pregnancies.
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Abstract
Cell morphology and its interaction with the extracellular environment are integrated processes involving a number of intracellular controllers orchestrating cytoskeletal proteins and their interaction with the cell membrane and anchorage proteins. Sex steroids are effective regulators of cell morphology and tissue organisation, and recent evidence indicates that this is obtained through the regulation of the actin cytoskeleton. Intriguingly, many of these regulatory actions related to cell morphology are achieved through the rapid, nonclassical signalling of sex steroid receptors to kinase cascades, independently from nuclear alteration of gene expression or protein synthesis. The identification of the mechanistic basis for these rapid actions on cell cytoskeleton has special relevance for the characterisation of the effects of sex steroids under physiological conditions, such as for the development of neurone/neurone interconnections and dendritic spine density. This is considered to be critical for gender-specific differences in brain function and dysfunction. Recent advancements in the characterisation of the molecular basis of the extranuclear signalling of sex steroids help to clarify the role of oestrogen and progesterone in the brain, and may turn out to be of relevance for clinical purposes. This review highlights the regulatory effects of oestrogens and progesterone on actin cytoskeleton and neurone morphology, as well as recent progresses in the characterisation of these mechanisms, providing insights and working hypotheses on possible clinical applications for the modulation of these pathways in the central nervous system.
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Dydrogesterone exerts endothelial anti-inflammatory actions decreasing expression of leukocyte adhesion molecules. Mol Hum Reprod 2011; 18:44-51. [DOI: 10.1093/molehr/gar062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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6
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Vitamin D, sunlight and longevity. MINERVA ENDOCRINOL 2011; 36:257-266. [PMID: 22019754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Humans acquire vitamin D through skin photosynthesis and digestive intake. Two hydroxylations are needed to obtain the bioactive compound, the first produces 25-hydroxyvitamin D [25(OH)D], and the second 1,25-dihydroxyvitamin D [1,25(OH)2D]. There is no consensus regarding the appropriate cut-off level to define the normal serum 25(OH)D range. Experimental, epidemiological and clinical studies have related low vitamin D status with longevity. Although some results are controversial, low serum 25(OH)D levels have been linked to all-cause, cardiovascular, cancer and infectious related mortality. Throughout life span a significant proportion of human beings display insufficient (20-30 ng/mL) or deficient (<20 ng/mL) serum 25(OH)D levels. Appropriate lifestyle changes, such as regular short exposures to sunlight (15 min a day), and an adequate diet that includes vitamin D rich components, are not always easily accomplished. Studies relating to vitamin D supplementation have methodological limitations or are based on relatively low doses. Therefore, dosages used for vitamin D supplementation should be higher than those traditionally suggested. In this sense, there is an urgent need for prospective controlled studies using high daily vitamin D doses (2,000 IU or higher) including cardiovascular, cancer, infectious and other endpoints. Relationship between vitamin D and health outcomes is not linear, and there are probably various optimal vitamin D levels influencing different endpoints.
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Association between testicular microlithiasis and primary malignancy of the testis: our experience and review of the literature. Radiol Med 2007; 112:588-96. [PMID: 17563846 DOI: 10.1007/s11547-007-0165-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2006] [Accepted: 09/26/2006] [Indexed: 11/30/2022]
Abstract
PURPOSE The aims of this study were to evaluate the association of testicular microlithiasis with testicular neoplasm, to assess the accuracy of ultrasonography (US) in comparison with histology in detecting microlithiasis, and to identify the prevalent cytohistological features that accompany testicular cancer. MATERIALS AND METHODS Between 2004 and 2005, 14 patients were referred to us for US examination, 13 of whom underwent surgery for testicular cancer. Their age ranged from 19 to 43 years, except for one patient aged 60. US findings and histological examination were compared to assess the accuracy of US in detecting microlithiasis associated with testicular cancer. RESULTS In two patients (15.3%), microlithiasis had been detected in a previous US examination, and two patients (15.3%) had altered sperm function. At US examination, testicular cancer was associated with microlithiasis in seven out of 13 patients (53.8%) (the distribution pattern of microlithiasis was intranodular in two, perinodular in two and both intra-and perinodular in three), and colour-Doppler US showed perinodular and intranodular vascularity. Histological evaluation identified nine seminomas, two mixed germ-cell tumours, one embryonal carcinoma, one yolk-sac tumour and one benign Sertoli-cell tumour. In nine (69.2%) patients, microlithiasis was confirmed at histologic evaluation, and its distribution was intranodular in two, perinodular in five and both intra-and perinodular in two. Tubular hyalinisation was demonstrated in 12 out of 13 patients (92.3%). CONCLUSIONS Testicular microlithiasis and poor sperm function represent risk factors for testicular cancer: in our study, 30.6% of the patients who developed cancer presented these features. At US examination, testicular microlithiasis is often associated with testicular cancer (53.8%). A high accuracy has been demonstrated for US in detecting microlithiasis (53.8%) compared with histological evaluation (69.2%). At histology, tubular hyalinisation (92.3% of cases) is, with testicular microlithiasis, the most frequent finding in the parenchyma adjacent to testicular cancer.
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Drospirenone increases endothelial nitric oxide synthesis via a combined action on progesterone and mineralocorticoid receptors. Hum Reprod 2007; 22:2325-34. [PMID: 17545686 DOI: 10.1093/humrep/dem109] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Progestins have actions on the cardiovascular system, which depend on the structure as well as on receptor binding characteristics. Drospirenone (DRSP) is a progestin that uniquely interferes with the signaling of the mineralocorticoid receptor (MR). Hormone therapy containing DRSP results in blood pressure reduction in hypertensive post-menopausal women. METHODS We describe the effects of DRSP on endothelial nitric oxide (NO) synthesis and compare them with those of progesterone (P) and of medroxyprogesterone acetate (MPA). In addition, we herein tested the relevance of the anti-mineralocorticoid activity of DRSP for NO synthesis. RESULTS DRSP results in rapid activation of the endothelial NO synthase (eNOS) through mitogen-activated protein kinases and phosphatidylinositol 3-kinase as well as in enhanced eNOS expression. These actions depend on P receptor. When the cells are exposed to aldosterone, a reduction of eNOS expression is found that is antagonized by DRSP. This action is not shared by P or MPA. In addition, DRSP does not interfere with the induction or activation of eNOS induced by estradiol, as opposed to MPA. CONCLUSIONS DRSP acts on endothelial cells via a combined action through the P and MRs. These results help to interpret the anti-hypertensive effects of hormonal therapies containing DRSP.
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Abstract
Drospirenone is a unique progestogen derived from 17alpha-spirolactone, with a pharmacologic profile very similar to that of endogenous progesterone. In contrast with other available progestins, drospirenone is a progestogen with aldosterone receptor antagonism (PARA) through its affinity for the mineralocorticoid receptor. It is thus able to act on the renin-angiotensin-aldosterone system (RAAS), which prevents excessive sodium loss and regulates blood pressure. Estrogen acts on the RAAS to stimulate the synthesis of angiotensinogen, which increases aldosterone levels and promotes sodium and water retention. When these effects are unopposed, for example during estrogen replacement therapy, they can lead to increases in weight and blood pressure. The antialdosterone properties exhibited by drospirenone promote sodium excretion and prevent water retention, conferring potential blood pressure benefits. In addition to its effects on the kidney, aldosterone has effects on the vasculature, myocardium and central nervous system, which may elicit a variety of pathophysiologic processes associated with cardiovascular disease. The antialdosterone properties of drospirenone may therefore confer additional cardiovascular benefits beyond the RAAS system. The combined actions of drospirenone on sodium and water retention and cardiovascular parameters make it a more attractive therapeutic option as a component of hormone replacement therapy than other synthetic progestins.
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11
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Endothelium and estrogen receptors. Pharmacotherapy 2006. [DOI: 10.1016/j.biopha.2006.07.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Estrogen receptors and breast cancer cells migration. Pharmacotherapy 2006. [DOI: 10.1016/j.biopha.2006.07.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Interventional radiology in percutaneous management of bile duct obstruction: biliary drainage through a spontaneous common hepatic duct-duodenal fistula. Clin Imaging 1999; 23:103-6. [PMID: 10416086 DOI: 10.1016/s0899-7071(98)00088-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Bile duct injuries are a serious complication of biliary surgery. We report a case of benign obstruction of the common hepatic duct associated with common hepatic duct-duodenal spontaneous fistula following complex surgical intervention. We managed percutaneously the fistula with balloon dilatation and long-term stenting, as the fistula allowed biliary flow in the duodenum. We avoided reintervention preserving biliary flow, with good clinical results after a follow-up of a 3 years. We emphasize the role of a clinically focused approach to percutaneous management of complications following biliary surgery.
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Extracorporeal lithotripsy of intrahepatic stones with associated strictures of intrahepatic biliary ducts. ITALIAN JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY 1998; 30:624-30. [PMID: 10076787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
BACKGROUND AND AIMS Intrahepatic stones are a frequent disease in the Eastern world but rare in Western countries. Treatment is complex and often requires surgical intervention. Extracorporeal shock wave lithotripsy is a relatively recent technique, widely used in the treatment of stones in the gallbladder and common bile duct. It can also be used in the treatment of intrahepatic stones. The present study analyses the efficacy of extracorporeal shock wave lithotripsy in intrahepatic stones. PATIENTS AND METHODS In our study, we used extracorporeal lithotripsy in six cases of intrahepatic stones (mean age 53 years). In five of these cases deformities of the intrahepatic bile ducts were also present: stenoses and angulated strictures. The stones were in the right lobe of the liver in 5 patients, and in both lobes in 1 patient. Four patients had multiple stones and 2 a single stone, all varying in diameter from 6 to 25 mm. The stones were localized radiologically with contrast medium through a drainage tube. The technique does not require anaesthesia. An average of three lithotripsy sessions were necessary, with a mean total of 8050 shock waves per patient. RESULTS Successful fragmentation was obtained in 5 out of 6 patients, while the remaining subsequently underwent surgery. No complications were observed. CONCLUSIONS Extracorporeal shock wave lithotripsy proved to be effective, easy to perform and safe for the treatment of intrahepatic stones.
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[Diffuse pulmonary hemorrhage associated with antineutrophil cytoplasmic antibodies. Findings of high-resolution computerized tomography. A case report]. LA RADIOLOGIA MEDICA 1997; 94:685-7. [PMID: 9524614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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[Computerized tomography-guided location of atypical small lung nodules]. LA RADIOLOGIA MEDICA 1997; 93:442-4. [PMID: 9219590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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17
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[Diagnostic impact of ultrasonography in abdominal diseases]. LA RADIOLOGIA MEDICA 1996; 91:596-600. [PMID: 8693126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The diagnostic accuracy of conventional radiography and ultrasound (US) in patients with acute or chronic abdominal pain was investigated by the authors in two prospective studies to assess the capabilities of the two imaging techniques. 262 patients (135 men and 127 women, age range: 25-83 years) were entered into the study within 8 months. The patients were divided into different groups according to clinical presentation (80 patients with acute and 182 with chronic pain) and to the referring physician (a hospital clinician for 127 patients and a general practitioner for 135 patients). For each technique the presence (positive result) or the absence (negative result) of abnormal imaging features related to clinical symptoms was recorded and the agreement of conventional radiography and US findings was assessed. Statistical analysis showed similar sensitivity of conventional radiography and US in the examination of acute hospitalized patients (54.3% positive results), chronic hospitalized patients (28.1% negative results) and chronic nonhospitalized patients (47.2% negative results). The results of our prospective studies showed poor diagnostic accuracy of the two techniques and clearly evidenced the improper use of diagnostic imaging methods by referring physicians, with a technical-oriented attitude in imaging examination requests. In the authors' opinion, a clinical-based approach by referring physicians with accurate patient selection might improve diagnostic accuracy, the cost/benefit ratio and the clinical effectiveness of imaging techniques.
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[The echographic and clinical follow-up of patients operated on for subcutaneous rupture of the Achilles tendon]. LA RADIOLOGIA MEDICA 1996; 91:28-32. [PMID: 8614727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Thanks to its good long-term results, surgery is the method of choice to treat subcutaneous ruptures of the Achilles tendon. Reconstructed tendons present typical morphological and functional US patterns which depend partly on the kind of surgical reconstruction and partly on the time passed since surgery. The authors report the results of the clinical and US follow-up of a series of 62 surgical patients treated in 7 years for the subcutaneous rupture of the Achilles tendon. The patients were 55 men and 7 women, whose mean age was 36 years (range: 25-65 years). The left-hand side was affected in 38 patients and the right-hand side in 24 patients. All patients were operated on using an end-to-end suture and reinforcement plastic surgery pulling down a gastrocnemius tendon flap. To homogenize the results, all the US exams were performed by the same operator, in the presence of the orthopedic specialist and under the same conditions: both the involved and the contralateral Achilles tendons were studied, longitudinal and transverse scans were performed with the foot in max. plantar and dorsal flexion and, whenever possible, dynamic scans were also performed making the sural triceps contract against resistance. The following parameters were studied clinically: pain (which was absent in 39 patients, occasional in 11, after stress in 9 and on walking in 3 patients), skin scar trophism (which was eutrophic in 53.23% of patients, keloid in 27.42% and hypertrophic in 19.35% of patients), ankle joint excursion (plantar flexion was impaired in 32.3% and dorsal flexion in 36% of patients), walking on tiptoe (in all, 22.6% of patients complained of difficulties walking on tiptoe) and, finally, work activity resumption (which all patients achieved). US depicted the surgical tendons as much bigger than the contralateral ones (3-4 times on the average), which increase in volume lasted throughout the follow-up. In 75% of patients the echo structure of the surgical tendons was inhomogeneous, with scattered hypoechoic and hyperechoic areas. In the extant 25% of patients, nearly all of them followed-up for over 6 years, US depicted a clear-cut hyperechoic area whose size and echo structure were similar to the healthy tendons'. Our results strongly suggest that tenorrhaphy and flap plastic surgery be used to repair subcutaneous ruptures of the Achilles tendon. US proved to be the most reliable and feasible method also in the follow-up. The US images of the patients submitted to surgery more than 6 years earlier revealed fibrillate reorganization patterns and tendon restructuring. These processes involve both ends of the sutured tendon and not the reinforcement flap, which further confirms the exclusively mechanical, and not biological, function of the latter.
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[State of the art and ways of progress in interventional radiology]. LA RADIOLOGIA MEDICA 1995; 90:645-7. [PMID: 8685441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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[The role of muscle scintigraphy with 201Tl in the morphofunctional assessment of obliterative arterial pathology of the lower limbs]. LA RADIOLOGIA MEDICA 1995; 89:495-500. [PMID: 7597232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
This study was aimed at assessing the role of stress 201Tl leg scintigraphy, compared with digital angiography, in the diagnosis and prognosis of peripheral arterial obstructive disease (PAOD) before and after surgical treatment. Fifty-four patients with known PAOD in Fontaine stages IIb, III or IV submitted to revascularization (36) or lumbar ganglionectomy (18), were examined with both angiography and scintigraphy. A statistical analysis of 360 segments (thighs and calves) was performed; in particular, correlation values were derived from 216 preoperative and 144 postoperative segments (18 patients who underwent lumbar ganglionectomy were not submitted to postoperative angiography). Scintigraphy vs. angiography sensitivity (84%), specificity (80%) and diagnostic accuracy (90%) values obtained in this study are in agreement with those reported in international literature. Scintigraphy yields information on the locoregional perfusion of an angiography-demonstrated anatomic lesion, under physiologic stress, which is particularly useful in symptomatic patients with angiographically unimportant stenoses. At present, 201Tl leg scintigraphy is the only technique yielding semiquantitative data in the assessment of single muscle groups perfusion increase in Fontaine IV patients submitted to lumbar ganglionectomy. The original contribution of this study consists in the evidence of a high predictive value (p < 0.01) of scintigraphy in the calculation of pain-free intervals in the patients with successful revascularization at clinics and angiography. This finding, if confirmed, shows a possible role for 201Tl leg scintigraphy in the diagnosis of peripheral arterial obstructive disease.
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[Comparative evaluation of ultrasonography, computerized tomography, angiography and lipiodol CT in defining extent of hepatocarcinoma. A multicenter study]. LA RADIOLOGIA MEDICA 1995; 89:270-7. [PMID: 7754120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The authors report the results of a multicentric trial on hepatocellular carcinoma (HCC) patients, whose lesions were confirmed with biopsy or by high (> 400 ng/ml) alpha-fetoprotein levels. The series consisted of 149 patients examined in 8 different centers and submitted to ultrasonography (US), Computed Tomography (CT) before and after contrast agent administration, angiography and Lipiodol CT. According to lesion size and number, the patients were divided with each imaging modality into three groups: a) group 1: unifocal HCC < 5 cm diameter; b) group 2: multifocal HCC with 2-3 nodules and/or tumor mass < 80 ml; c) multifocal HCC with more than 3 nodules (with total tumor mass not exceeding 40% of liver volume) or with total tumor mass > 80 ml. In 77 patients all the examinations were available for comparison. US and CT diagnosed more patients as belonging to group 1 than angiography and Lipiodol CT, while more patients were classified as groups 2 and 3 with angiography and Lipiodol CT, meaning that US and CT may understage some HCC cases (about 15%) because they show a lower number of nodules. This observation was confirmed by the direct comparison between US and Lipiodol CT (in 114 patients), CT and Lipiodol CT (in 103 patients) and angiography and Lipiodol CT (in 116 patients). US and Lipiodol CT were in disagreement in 18 cases, CT and Lipiodol CT in 16 cases and angiography and Lipiodol CT in 13 cases. In most of these cases, Lipiodol CT showed more lesions than the other techniques. The size of the undetected lesions was small, ranging few mm to 2 cm in nearly all cases. To conclude, the results of this multicentric trial show that Lipiodol CT is a fundamental tool to evaluate HCC extent. In contrast, conventional CT appeared not to add any significant piece of information and can therefore be excluded from the diagnostic protocol of HCC.
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[Homogenized thoracic radiography]. LA RADIOLOGIA MEDICA 1994; 88:478-82. [PMID: 7997622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The major obstacle to optimal radiographic depiction of the chest has always been its anatomical features and, in particular, the considerable difference in X-ray beam attenuation between pulmonary and mediastinal structures. At least 40% of this region cannot be visualized in an optimal way. Therefore, much technological work was done to overcome this limitation, which has recently led to the development of electronic (Amber) and mechanical (homogenization) filtration systems. This study was aimed at assessing the capabilities of mechanical filtration, in terms of anatomical representation and lower biologic cost, the latter intended as lower exposure and absorbed doses. Therefore, eight radiologists studied 40 negative radiographs, i.e., a homogenized radiograph and a non-homogenized one per patient, twenty patients in all. The statistical analysis of the radiographs demonstrated the homogenized technique to allow better visualization of all the anatomical structures examined, i.e., trachea, carina, right and left main bronchi, aorta, spine and retrocardiac region. In contrast, the two radiographic techniques yielded much the same results in the depiction of the pulmonary pattern. As for dosimetry, good results were also obtained, because the homogenizer made it possible to reduce both exposure and absorbed doses to the lung and thyroid, while in the mediastinal region the absorbed dose remained similar to that measured with the non-homogenized even though exposure dose was increased mildly.
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Clinical and ultrasound follow-up of 62 patients submitted to the surgical treatment of subcutaneous rupture of the Achilles tendon. LA CHIRURGIA DEGLI ORGANI DI MOVIMENTO 1994; 79:213-218. [PMID: 7956523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A total of 62 patients submitted to the surgical treatment of subcutaneous rupture of the Achilles tendon were followed up after a period of time ranging from 2 to 8 years. End-to-end suturing and reinforcement plastic surgery obtained excellent clinical results in more than 80% of the cases, with complications which were principally inherent to scarring. There were no cases of rupture. In cases with a longer follow-up, ultrasound examination revealed aspects of fibrillate restructuring of the tendon.
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[Ultrasonographic semiology of biliary prostheses]. LA RADIOLOGIA MEDICA 1993; 86:639-46. [PMID: 8272551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
US was used to study 60 patients with different types of plastic (Home-made, Lunderquist, Miller, Carey-Coons, Lammer) and metallic (Z-stent, Wallstent) biliary stents, from October 1990 to March 1993. The optimal US approach was assessed, together with several US features which are typical of each type of endoprosthesis. As far as plastic endoprostheses are concerned, independent of manufacturing differences, the typical US pattern on longitudinal scans is a hyperechoic double line while, on transverse scans, the prosthesis cylinder is represented by short hyperechoic lines, resembling the mathematic equal sign. According to the different types, metallic stents appear as thin hyperechoic lines or narrow gratings on longitudinal scans and as hyperechoic spots following a circular pattern or as a hyperechoic ring on transverse scans.
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[Palliative treatment of esophageal neoplastic stenoses with self-expanding metallic stents]. LA RADIOLOGIA MEDICA 1993; 86:647-56. [PMID: 7505941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Thirty Strecker nickel-titanium self-expanding metallic stents were implanted in 20 patients with esophageal strictures and inoperable neoplasms in the Departments of Radiology of the University School of Medicine of Ferrara, Genoa, Novara and Rome, from March 1992 to April 1993; follow-up ranged 1 to 13 months. Thanks to the stents, esophageal strictures could be dilated, significantly reducing dysphagia and allowing the patients to return on to a solid diet. Radiological and endoscopic exams proved the efficacy of the stents in all but 2 patients in whom the tumors had invaded the stent lumen and caused obstruction. In all cases the stents were highly biocompatible and well tolerated. Neither major complications, such as perforation or bleeding, were observed, nor minor ones, such as fever or migration from the site of implant, which may occur with plastic prostheses. To conclude, self-expanding metallic stents used in clinical trials for 13 months proved an effective method in the palliative treatment of malignant esophageal strictures.
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[A volumetric increase in the submandibular glands due to an organic iodate contrast medium. A case report]. LA RADIOLOGIA MEDICA 1993; 85:138-40. [PMID: 8480042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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[Computerized tomography follow-up after percutaneous renal lithotripsy]. LA RADIOLOGIA MEDICA 1992; 84:434-9. [PMID: 1455027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Even though extracorporeal shock wave lithotripsy (ESWL) is nowadays considered the treatment of choice for the majority of upper urinary tract calculi, percutaneous stone removal will continue to be an alternative treatment method in selected cases. Therefore, percutaneous techniques must not be forgotten by the interventional radiologist. In order to assess the effects and the potential damage caused by this interventional procedure to kidney and perirenal tissues, CT was performed on 20 patients before and after percutaneous nephrolithotripsy. In the cases where no complications occurred during the maneuver, post-nephrolithotripsy scans demonstrated low incidence of significant renal abnormalities. Thickening of pararenal fascia (8 patients) and irregular renal outline (10 patients) were our most frequent findings. In 5 patients we found edema of the pyelo-ureteral junction, in 3 thickening of the bridging perinephric septa and retained stone fragments, in 2 perirenal hematomas, in one a subcapsular fluid collection. Urinoma with pelvic laceration was demonstrated in the only patient in whom the maneuver presented marked technical problems. On the basis of this series of pre- and post-nephrolithotripsy CT scans of treated kidneys, the authors conclude that this percutaneous technique is quite atraumatic.
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Effectiveness of partial splenic embolization as treatment for hypersplenism in thalassaemia major: a 7-year follow up. Eur J Haematol Suppl 1992; 49:49-52. [PMID: 1397239 DOI: 10.1111/j.1600-0609.1992.tb00029.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Partial splenic embolization is an alternative procedure to total splenectomy in patients with hypersplenism, and was performed in 10 patients with beta-thalassaemia major who were then followed for 5 to 7 years. The results were compared with those of a 7-yr follow-up of 6 splenectomized thalassaemics. The blood consumption decreased and the leucocyte counts increased in both groups of patients. However, after partial splenic embolization, severe thrombocytosis--which is typical of splenectomized patients--did not develop and there were no severe complications from the operation, such as infections or reappearance of hypersplenism. In addition, the minor surgical injury and avoidance of abdominal scars were further advantages of partial splenic embolization over total splenectomy.
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29
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[Percutaneous subtotal splenic embolization in thalassemia major. A 4-year follow up]. LA RADIOLOGIA MEDICA 1989; 77:672-8. [PMID: 2756183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Ten young patients affected with thalassemia major with hypersplenism were treated with subtotal percutaneous embolization. Percutaneous procedure was used to correct hypersplenism, while preserving a small portion of splenic parenchyma. Embolization was successful in 9 patients, and no significant complications were observed; in 1 patient arterial catheterization and splenic embolization were not possible due to splenic artery tortuosity. Post-procedural clinical course was characterized by intense pain, not always reduced by therapy. Hospitalization time was similar to that of surgical splenectomy. Effectiveness of percutaneous embolization was evaluated with splenic scintigraphy, clearance of erythrocytes marked with 99mTc and denatured with BMHP and with the analysis, both before and after percutaneous procedure, of the following 3 parameters: annual blood consumption, behavior of pre-transfusional hemoglobin, and transfusional pause. Six patients underwent a 4-year follow-up. In all cases scintigraphy showed the effectiveness of subtotal embolization, and clearance of erythrocytes appeared slower than before. As for clinics, an improvement was observed in transfusional parameters. The results from our series, though numerically limited, support the role of percutaneous splenic embolization as an alternative to surgical splenectomy in high risk patients or in patients who refuse surgery.
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30
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[Postoperative biliary calculosis: our experience with therapeutic strategy]. G Chir 1989; 10:333-6. [PMID: 2518430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The Authors report their experience in the treatment of 92 cases of post-surgical biliary tract stones: 17 early cases (18.5%) were treated by percutaneous nonsurgical extraction (10 cases) or by operative procedures (7 cases); 75 late cases (81.5%) were surgically treated. The Authors summarize the results of the treatment, discussing advantages and disadvantages of the various techniques.
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31
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[Advantages of a light-equipped angiographic guide in percutaneous obliteration of the spermatic veins]. LA RADIOLOGIA MEDICA 1989; 77:408-10. [PMID: 2727343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Percutaneous transvenous treatment has become the elective therapy for varicocele because it is a simple, safe, economic and reliable procedure. The presence of proximal anastomoses connecting a competent valved spermatic trunk with the renal vein can be responsible for a varicocele and make its treatment difficult. In such cases; the valve of the spermatic venous trunk can be bypassed using an open-ended guidewire with a removable mandril core, and then injecting the sclerosing agent through the guide. Moreover, the guidewire can facilitate the insertion of the catheter through the competent valve, thus allowing the placement of Gianturco coils. During the past 12 months we have successfully treated 4 patients affected by varicocele with competent valved venous trunk using the open-ended guidewire.
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32
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Transhepatic approach: PTC. RAYS 1989; 14:37-43. [PMID: 2520855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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33
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[Percutaneous nephrostomy. A 5-year experience]. LA RADIOLOGIA MEDICA 1988; 76:534-40. [PMID: 3212235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The authors report their experience with percutaneous nephrostomy in the treatment of acute renal failure due to ureteral obstruction. One hundred and forty-three patients were treated with the positioning of 218 percutaneous nephrostomy catheters under fluoroscopic guidance. If performed as soon as possible, this percutaneous diversion provides a rapid improvement in renal function and allows an accurate staging of the lesion, as well as correct therapeutic indications. In many cases of urinary obstruction interventional radiology procedures represent a valid and successful alternative to more invasive palliative surgery.
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34
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[Personnel exposure in intraoperative biliary radiology]. LA RADIOLOGIA MEDICA 1988; 76:541-4. [PMID: 3212236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The diffusion of percutaneous procedures under fluoroscopic guidance has raised the question of excessive radiation exposure to the patient and to the interventional radiology personnel. In order to give an answer to this question we prospectively evaluated the radiation doses received by the operator's hands, lens, thyroid, and gonads during 243 percutaneous cholangiographies and transhepatic biliary drainages. The absorbed dose was measured with calibrated lithium fluoride thermoluminescent dosimeters applied to the skin (hands, neck, forehead, and gonads). The range of absorbed doses to the four areas was: from 0.013 to 0.219 mGy for the hands, from 0.011 to 0.027 mGy for the thyroid, from 0.007 to 0.019 mGy for the lens; the gonads dose was not measurable due to the dosimeter being placed behind the lead apron. The radiation dose employed during our biliary interventional procedures is higher than that of selective visceral angiography, but lower than that of PTA. On the basis of our data, a radiologist could perform about 2777 PTCs, or 1718 percutaneous biliary drainages, per annum, without exceeding the ICRP dose limits.
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35
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[Percutaneous therapy of primary varicocele. 6 years' experience]. LA RADIOLOGIA MEDICA 1988; 76:458-65. [PMID: 3060903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Idiopathic varicocele is nowadays accepted as a "social disease" for both its high incidence among young men and its affecting male fertility. Screening is thus required for young people and, above all, early and definitive treatment. We have evaluated the effectiveness of percutaneous sclerotherapy, which has become a standard procedure, in spite of its recent introduction in interventional radiology. One hundred and thirty-nine percutaneous occlusions were performed on 147 patients with varicocele using a sclerosing agent--polidocanol--and stainless steel coils. The failure rate of percutaneous treatment was about 12%. Complications never required hospitalization or surgery; recurrence rate is 3.66%. The patients were followed 3, 6, 12 and 24 months by US and Doppler to survey recurrences, and sperm analysis to estimate the clinical results of percutaneous therapy in infertile patients. Statistical analysis with linear regression of data from spermiograms showed constant improvement in sperm count, sperm motility percentage, and sperm morphology percentage. Fertility index improvement was similar to that of surgical ligation. The radiation dose received by the patient is negligible. Percutaneous therapy represent thus the treatment of choice in case of varicocele: compared with surgery, it offers similar clinical results and a lower recurrence rate, and it can be performed on an outpatient basis. Surgery should be performed only when anatomic variants make percutaneous treatment not feasible.
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36
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[Reinterventions on bilio-digestive anastomoses]. MINERVA CHIR 1987; 42:1017-22. [PMID: 3627511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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37
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[Double aortic arch with an isthmic interruption in a patient with bronchiectatic dysplasia. Description of a case]. Minerva Cardioangiol 1986; 34:579-82. [PMID: 3808348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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38
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[Current role of interventional radiology of the bile ducts]. LA RADIOLOGIA MEDICA 1986; 72:505-14. [PMID: 2426737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Interventional Biliary Radiology, born from the development of the instrumental procedures linked to transhepatic cholangiography, plays a leading role in the management of patients with obstructive jaundice. In fact it includes several diagnostic tools, such as cytological examination of the bile, transhepatic brushing and biopsy, percutaneous cholangioscopy, manometric and perfusional biliary studies, which are extremely successful in the diagnosis of nature of the obstructive lesions. On the other hand it includes some therapeutical procedures, deriving from angiographic techniques, which allow the placement of drainage catheters into the biliary tree. These drainage systems, used to decompress the bile ducts, are the external drainage catheter, which divert the bile out of the organism; the external-internal drainage catheter, which restores the physiological biliary flow; the endoprosthesis, a cylindric tube, with sideholes, pushed into the obstructive lesion. All these devices may have a preoperative or definitive-palliative finality.
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39
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[Selective arteriography in fractures of the femur head]. LA RADIOLOGIA MEDICA 1986; 72:462-5. [PMID: 3715086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The choice between conservative and radical operation in case of femoral neck fractures is very important because it is the determining factor for a successful therapy. In case of epiphysial necrosis, an endoprosthesis as well as an osteosynthesis will be carried out. Selective arteriography of the medial circumflex artery represents the most reliable study to establish, immediately after the fracture, the possible presence of a post-traumatic ischemic necrosis. Angiography, as a reliable diagnostic tool, has to be carried out in the most selective way and needs the image subtraction technique. The authors report their preliminary results on the reliability of angiography in the femoral epiphyseal ischemic necrosis diagnosed by comparing the results of angiography with the Wood light test carried out on the surgically removed femoral head.
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40
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Percutaneous biliary drainage in neoplastic jaundice. Statistical data from a computerized multicenter investigation. ACTA RADIOLOGICA: DIAGNOSIS 1985; 26:681-8. [PMID: 2417453 DOI: 10.1177/028418518502600607] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Technical and clinical data concerning 731 controlled patients submitted to nonsurgical percutaneous biliary drainage (PBD) for preoperative or palliative purposes were collected from eight institutions. Using a computerized analysis program, general and special statistics were obtained, with special attention given to 536 neoplastic cases. Technical success, type, level and nature of the lesions, purpose of drainage, surgery performed, complications, and other clinical and technical information were considered and compared with the clinical results. Statistically significant data were obtained comparing, respectively, bilirubin levels with duration of drainage, survival with type of treatment (PBD alone or followed by radical or palliative surgery), operative with post PBD mortality, survival with type of PBD (external catheter, internal catheter, and endoprosthesis), and complications with type of PBD used.
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41
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[Culture studies of the bile during transhepatic cholangiography]. Minerva Med 1985; 76:1917-20. [PMID: 3932900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A bacterial examination was carried out on bile taken from 119 patients undergoing transhepatic percutaneous cholangiography (P.T.C.) due to biliary obstruction. Bacteria were found in 36.9% of cases, with greater frequency in cases of benign obstructions (69.6%) than malignant obstructions (27.2%). The extent of obstruction was found to make no difference (stenotic or obstructive). These results therefore confirm that a risk of infectious complications during P.T.C. exist. Susceptibility studies carried out on bile bacteria showed gentamycin to be the most effective antibiotic in the prevention and treatment of infection in these cases.
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42
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[Transvenous xeroangiography of arteriovenous fistulas of patients undergoing periodic hemodialysis]. LA RADIOLOGIA MEDICA 1985; 71:643-8. [PMID: 4089245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Xeroradiography allows visualisation of the arterial system after intravenous injection of contrast media. This method has proved particularly useful for diagnosis of changes in the arteriovenous fistulas of 20 patients on chronic haemodialysis. In all cases transvenous xeroangiography gave information about morphologic alterations of vessels and soft tissues. Among the commonly used angiographic methods, transvenous xeroangiography appears the technique of choice.
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43
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[Changes in thyroid hormone status after injections of iodinated contrast media]. LA RADIOLOGIA MEDICA 1985; 71:622-5. [PMID: 4089260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Administration of four different contrast media exerted slight but significant and prolonged effects on the hormonal thyroid status, in 53 euthyroid subjects (four subgroups), without any clinical expression of dysthyroidism. Changes in serum T3, rT3 and T4 demonstrated different trends for each iodinated compound, probably depending on the regulatory thyroid mechanisms, and CM pharmacokinetics. Plasma profiles of free fractions (FT3, FT4) slightly reflected consensual changes with circulating iodothyronines, at various time periods of study, demonstrating high correlation indexes with total fractions. The five hormones profiles correlation study suggest that different mechanisms could be responsible for some features encountered of "low T3 syndrome". These effects may be not only equivalent to giving various sources of iodide, but suggest more complex mechanisms. It is apparent that man has a remarkable and possibly unique system of homeostatic thyroid hormone regulation.
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44
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[Iatrogenic renal arteriovenous fistula in Wegener syndrome: percutaneous embolization]. MINERVA UROL NEFROL 1985; 37:291-5. [PMID: 4089722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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45
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[Xeroangiography. Technical principals and applied developments]. LA RADIOLOGIA MEDICA 1985; 71:403-8. [PMID: 4070698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The physical patterns ruling the information of a xeroradiographic image allow the visualization of the arterial system with a lower concentration of contrast medium. So you can visualize the arterial branches both with intravenous injection of the usual angiographic concentration of contrast medium or with intraarterial injection of diluted contrast medium at a very low concentration. A prerequisite to successful xeroangiography was the commercial diffusion of a changer for xerox cassettes allowing several exposures according to standardized programs.
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46
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[Interventional radiology. Percutaneous transhepatic drainage of a paracholedochal abcess]. LA RADIOLOGIA MEDICA 1984; 70:181-4. [PMID: 6390544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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47
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[Embolization in bladder hemorrhage of neoplastic origin]. LA RADIOLOGIA MEDICA 1984; 70:106-12. [PMID: 6208578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The authors report on their two years experience about hypogastric transarterial embolization in the treatment of urinary bladder intractable neoplastic hemorrhage. They discuss about materials for embolization and treatment of pain for acute ischaemia secondary to embolization.
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48
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[The transparieto-hepatic catheter in the diagnosis and therapy of obstructive jaundice]. MINERVA CHIR 1983; 38:1421-3. [PMID: 6664527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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49
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[Xeroradiography applied to cephalometry]. RIVISTA ITALIANA DI STOMATOLOGIA 1983; 52:665-74. [PMID: 6592735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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50
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[Value and limits of echography and abdominal lymphography in malignant lymphomas]. Minerva Med 1983; 74:1573-9. [PMID: 6856168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Diagnostic results obtained by echography and lymphography in the study of abdominal lymphoglandular involvement in patients with lymphomas are compared. The data indicate that while lymphography is more revealing, the two examinations should be used together in staging. Echography, on the other hand, should be used for long-term surveillance, once the lymphographic contrast medium has been absorbed.
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