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1.
Crit Care ; 22(1): 341, 2018 12 17.
Artículo en Inglés | MEDLINE | ID: mdl-30558639

RESUMEN

BACKGROUND: Tigecycline is a vital antibiotic treatment option for infections caused by multiresistant bacteria in the intensive care unit (ICU). Acute kidney injury (AKI) is a common complication in the ICU requiring continuous renal replacement therapy (CRRT), but pharmacokinetic data for tigecycline in patients receiving CRRT are lacking. METHODS: Eleven patients mainly with intra-abdominal infections receiving either continuous veno-venous hemodialysis (CVVHD, n = 8) or hemodiafiltration (CVVHDF, n = 3) were enrolled, and plasma as well as effluent samples were collected according to a rich sampling schedule. Total and free tigecycline was determined by ultrafiltration and high-performance liquid chromatography (HPLC)-UV. Population pharmacokinetic modeling using NONMEM® 7.4 was used to determine the pharmacokinetic parameters as well as the clearance of CVVHD and CVVHDF. Pharmacokinetic/pharmacodynamic target attainment analyses were performed to explore the potential need for dose adjustments of tigecycline in CRRT. RESULTS: A two-compartment population pharmacokinetic (PK) model was suitable to simultaneously describe the plasma PK and effluent measurements of tigecycline. Tigecycline dialysability was high, as indicated by the high mean saturation coefficients of 0.79 and 0.90 for CVVHD and CVVHDF, respectively, and in range of the concentration-dependent unbound fraction of tigecycline (45-94%). However, the contribution of CRRT to tigecycline clearance (CL) was only moderate (CLCVVHD: 1.69 L/h, CLCVVHDF: 2.71 L/h) in comparison with CLbody (physiological part of the total clearance) of 18.3 L/h. Bilirubin was identified as a covariate on CLbody in our collective, reducing the observed interindividual variability on CLbody from 58.6% to 43.6%. The probability of target attainment under CRRT for abdominal infections was ≥ 0.88 for minimal inhibitory concentration (MIC) values ≤ 0.5 mg/L and similar to patients without AKI. CONCLUSIONS: Despite high dialysability, dialysis clearance displayed only a minor contribution to tigecycline elimination, being in the range of renal elimination in patients without AKI. No dose adjustment of tigecycline seems necessary in CRRT. TRIAL REGISTRATION: EudraCT, 2012-005617-39 . Registered on 7 August 2013.


Asunto(s)
Terapia de Reemplazo Renal/métodos , Tigeciclina/farmacocinética , Lesión Renal Aguda/etiología , Lesión Renal Aguda/prevención & control , Anciano , Antibacterianos/farmacocinética , Antibacterianos/uso terapéutico , Enfermedad Crítica/terapia , Femenino , Hemodiafiltración/efectos adversos , Hemodiafiltración/métodos , Humanos , Unidades de Cuidados Intensivos/organización & administración , Masculino , Persona de Mediana Edad , Farmacocinética , Terapia de Reemplazo Renal/estadística & datos numéricos , Tigeciclina/uso terapéutico
2.
Klin Monbl Augenheilkd ; 232(5): 676-81, 2015 May.
Artículo en Alemán | MEDLINE | ID: mdl-25393438

RESUMEN

BACKGROUND: The frequency of intravitreal injection of drugs (IVI) has significantly increased recently and it is performed like cataract surgery as an outpatient procedure. The occurrence of postoperative endophthalmitis is rare, only few data of multicentre studies are available. METHODS: We analysed the data of 30 consecutive patients with endophthalmitis following cataract surgery (group 1, n = 20) and IVI (group 2, n = 10) requiring therapy in a referral eye clinic from January 2009 to December 2013. All patients received topical and systemic anti-inflammatory and anti-infective therapy. Due to vitreous opacification and severe loss of vision 83 % of the eyes underwent immediately pars plana vitrectomy with diagnostic microbiological probe and intravitreal application of vancomycin and gentamicin. RESULTS: Endophthalmitis occurred independently in both groups 1 to 10 days, on average 4 days, postoperatively. Group 1 showed conjunctival infection in 80 % (n = 16), group 2 in 20 % (n = 2). Hypopyon was found in group 1 in 65 % (n = 13), in group 2 in 40 % (n = 4). Group 1 presented retinal haemorrhages and epiretinal fibrin membranes in 15 % (n = 3), group 2 in 70 % (n = 7). Vitreous cultures were positive in 80 % (vancomycin-sensitive staphylococci). Staphylococcus was the most frequent bacteria, resistant to ceftazidime. In group 1 visual acuity was initially in 65 % (n = 13) of the eyes < 20/400 or worse, in group 2 90 % (n = 9) of the eyes had hand motions and in 10 % (n = 1) worse than 20/400. Visual outcome was 20/30 on average for group 1, PVR retinal detachment occurred once. In group 2 no patient achieved better visual outcome than < 20/400, 40 % of the eyes required permanent silicon oil tamponade because of PVR retinal detachment. The major pathogens were staphylococci resistant to ceftazidim. CONCLUSION: Endophthalmitis following IVI had poor visual outcome compared to endophthalmitis following cataract surgery and showed less anterior segment symptoms.


Asunto(s)
Extracción de Catarata , Endoftalmitis/etiología , Inyecciones Intravítreas/efectos adversos , Complicaciones Posoperatorias/etiología , Infecciones Estafilocócicas/etiología , Adulto , Anciano , Anciano de 80 o más Años , Procedimientos Quirúrgicos Ambulatorios , Antiinflamatorios/uso terapéutico , Bevacizumab/administración & dosificación , Bevacizumab/efectos adversos , Farmacorresistencia Microbiana , Endoftalmitis/terapia , Gentamicinas/uso terapéutico , Humanos , Persona de Mediana Edad , Complicaciones Posoperatorias/terapia , Ranibizumab/administración & dosificación , Ranibizumab/efectos adversos , Desprendimiento de Retina/etiología , Desprendimiento de Retina/terapia , Estudios Retrospectivos , Aceites de Silicona/administración & dosificación , Infecciones Estafilocócicas/terapia , Vancomicina/uso terapéutico , Agudeza Visual , Vitrectomía
3.
Klin Monbl Augenheilkd ; 231(10): 995-8, 2014 Oct.
Artículo en Alemán | MEDLINE | ID: mdl-25333236

RESUMEN

BACKGROUND: Absence of capsular support or extended zonulolysis is today the main indication for retroiridal enclavation of the unfoldable PMMA iris claw lens (Verisyse®/Artisan®) if there is sufficient iris support. Contraindications are uveitis or ischaemic retinopathies. PATIENTS AND METHODS: 'In-the-bag' IOL dislocation due to PEX zonulopathy usually occurring 8 years after phacoemulsification is the main indication. For complicated phacoemulsification with extended zonular defect the retroiridal iris claw lens (Verisyse®/Artisan®) has become the stand-by IOL of first choice. A rare indication for Verisyse is optical rehabilitation after lens luxation into the vitreous in combination with vitrectomy. RESULTS: 81 eyes were analysed. With laseroptic biometry target refraction was within 1 D for 100 % of the 'in-the-bag' luxation cases and in 62 % for the other more complicated cases. Wavefront analysis showed no significant difference for optical quality between retroiridal iris claw lens and a endocapsular fixated spherical for scotopic 5 mm pupil. Iris pigment atrophies of the enclavation site had no clinical significance. Risk for cystoid macular oedema is lower compared to sclera suture-fixated posterior chamber lenses. Intra- and postoperative complications were rare. Spontaneous or traumatic de-enclavation due to haptic defects may occur. After vitrectomy instable refraction may be caused by hypermobile iris diaphragma. CONCLUSIONS: Retroiridal iris claw lenses can be implanted atraumatically under topical anaesthesia. IOL related complications are minimal.


Asunto(s)
Afaquia/cirugía , Implantación de Lentes Intraoculares/instrumentación , Implantación de Lentes Intraoculares/métodos , Lentes Intraoculares Fáquicas , Afaquia/diagnóstico , Análisis de Falla de Equipo , Humanos , Implantación de Lentes Intraoculares/efectos adversos , Diseño de Prótesis , Resultado del Tratamiento
4.
Klin Monbl Augenheilkd ; 231(10): 1012-5, 2014 Oct.
Artículo en Alemán | MEDLINE | ID: mdl-25333240

RESUMEN

BACKGROUND: The covered sclerotomy is a minimally invasive, standardized fistulating glaucoma surgical procedure with reduced risk of complications. Early postoperative bleb fibrosis is a main success-limiting problem. In this clinical study IOP follow-up and the one year success rate after primary application of mitomycin C (MMC) is analyzed. PATIENTS AND METHODS: In 76 eyes with advanced glaucoma and without previous fistulating surgery, a covered sclerotomy combined with 3-minute-application of MMC0,02 % was performed. Over a period of 12 months, bleb and pressure were controlled regularly. The success rates were compared primarily with data from an earlier study without application of MMC. RESULTS: The mean age of the patients was 70 ± 11 years. 45 % had a pseudoexfoliation syndrome while 41 % were pseudophakic. The mean intraocular pressure (IOP) was 27 ± 8,5 mmHg preoperatively. After 12 months it was 16,2 ± 4,3 mmHg (p < 0.05) with a mean IOP reduction of 40 %. The absolute success rate (intraocular pressure < 21 mmHg without antiglaucoma therapy) was 58 % and the relative success rate (intraocular pressure < 21 mmHg under treatment) was 71 %. A revision or a needling was performed in 22 eyes (29 %). MMC-related complications were not observed. CONCLUSION: Through the additional MMC application on the base of the primary covered sclerotomy a significant pressure reduction could be achieved. 58 % of the patients didn't need any glaucoma medicine. The absolute success rate was higher than without additional inhibitions of the fibrosis.


Asunto(s)
Extracción de Catarata/efectos adversos , Procedimientos Quirúrgicos Mínimamente Invasivos/efectos adversos , Mitomicina/administración & dosificación , Premedicación/métodos , Enfermedades de la Esclerótica/etiología , Enfermedades de la Esclerótica/prevención & control , Esclerostomía/efectos adversos , Anciano , Extracción de Catarata/métodos , Femenino , Humanos , Masculino , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Esclerostomía/métodos , Resultado del Tratamiento
5.
Klin Monbl Augenheilkd ; 228(1): 62-5, 2011 Jan.
Artículo en Alemán | MEDLINE | ID: mdl-20845259

RESUMEN

BACKGROUND: Staining of the retinal surface has improved the intraoperative removal of semitransparent membranes during macular surgery. The purpose of this study was to evaluate the clinical experiences with brilliant blue G (BBG) staining of the retinal surface. METHODS: BBG (Brilliant peel, Fluoron) was applied during vitrectomy and macular surgery in 43 patients. In 47 % there was a macular hole (MH), whereas 53 % had epiretinal membranes (ERM). Intraoperatively BBG was applied on the retinal surface under infusion or air conditions for 30 - 60 s. In MH the internal limiting membrane (ILM) and in ERM the membrane was removed. Postoperatively all patients were examined on average after 9 weeks. RESULTS: Although intraoperative BBG staining was less intensive compared to ICG staining, the staining was sufficient to safely remove the semitransparent membranes in all cases. In all patients with MH hole closure was achieved, and in 96 % with ERM the metamorphopsiae decreased. The mean decimal visual acuity increased from 0.25 ± 0.13 to 0.37 ± 0.20 (p < 0.05) and improved in 63 % of the patients. Clinically, there were no toxic side-effects from BBG staining. CONCLUSIONS: BBG allowed a complete and selective staining of the retinal surface. Thus, ILM and ERM could be removed safely during macular surgery. No clinical retinal toxicity was observed.


Asunto(s)
Membrana Epirretinal/patología , Membrana Epirretinal/cirugía , Aumento de la Imagen/métodos , Retinoscopía/métodos , Colorantes de Rosanilina , Cirugía Asistida por Computador/métodos , Vitrectomía/métodos , Anciano , Humanos , Coloración y Etiquetado
6.
Klin Monbl Augenheilkd ; 225(9): 812-7, 2008 Sep.
Artículo en Alemán | MEDLINE | ID: mdl-18759213

RESUMEN

BACKGROUND: The purpose of this study was to assess uncorrected far and near vision after implantation of a multifocal intraocular lens (IOL) in the second eye in patients with a unilateral monofocal IOL. PATIENTS AND METHODS: 13 cataract patients with a monofocal intraocular lens in one eye (SA60AT, Alcon) and postoperative emmetropia received a multifocal lens in the second eye (ReSTOR, Alcon). Two and six months postoperatively the clinical examination, far and near vision, near aniseikonia (AWAYA-New Aniseikonia Test), stereo vision (Lang I test) and the mesopic contrast sensitivity (F. A. C.T) were tested. In addition, the grade of satisfaction without glasses in general, and with far and near vision were noted on a visual analogue scale (0 - 10). Furthermore, independence from glasses and the presence of optical phenomena were assessed. RESULTS: The mean uncorrected far visual acuity 6 months postoperatively was 1.06 +/- 0.28 for the monofocal lens, 0.88 +/- 0.23 for the multifocal lens, and 1.16 +/- 0.24 binocularly. The uncorrected near visual acuity was Nieden 1 binocularly for all patients and ranged from Nieden 1 - 3 for the multifocal lens to Nieden 2 - 11 for the monofocal lens. 77% of the patients received the multifocal lens in their far dominant eye. The mean uncorrected near aniseikonia was < 1%. The mesopic contrast sensitivity showed no significant differences between the two IOL types and compared to binocular values. The satisfaction with the uncorrected visual acuity was in general 8.88 +/- 1.21, with the far visual acuity 9.42 +/- 1.24, and 7.33 +/- 1.72 with the near visual acuity. After 6 months 67% of the patients used glasses only for periods of prolonged reading. Halos and a low degree of glare were noted by 38.5% of patients 2 months postoperatively. At the 6 months visit 33.3% still had halos and only 8% glare. CONCLUSIONS: This first experience with the combined implantation of a monofocal and a multifocal lens revealed a marked improvement of the uncorrected near visual acuity compared to bilateral monofocal IOL implantation along with a high patient satisfaction.


Asunto(s)
Catarata/complicaciones , Catarata/rehabilitación , Implantación de Lentes Intraoculares/instrumentación , Implantación de Lentes Intraoculares/métodos , Lentes Intraoculares , Presbiopía/complicaciones , Presbiopía/rehabilitación , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
7.
Med Trop (Mars) ; 68(2): 182-8, 2008 Apr.
Artículo en Francés | MEDLINE | ID: mdl-18630054

RESUMEN

This article presents the results of an expert consultation meeting aimed at evaluating the safety and public health implications of administering supplemental iron to infants and young children in malaria-endemic areas. Participants at this meeting that took place in Lyon, France on June 12-14, 2006 reached consensus on several important issues related to iron supplementation for infants and young children in malaria-endemic areas. The conclusions in this report apply specifically to regions where malaria is endemic.


Asunto(s)
Anemia Ferropénica/prevención & control , Suplementos Dietéticos , Enfermedades Endémicas , Hierro/uso terapéutico , Malaria/prevención & control , Anemia Ferropénica/epidemiología , Niño , Humanos , Lactante , Malaria/epidemiología , Organización Mundial de la Salud
8.
Ophthalmologe ; 104(9): 790-4, 2007 Sep.
Artículo en Alemán | MEDLINE | ID: mdl-17661058

RESUMEN

BACKGROUND: Piggyback lens implantation is an alternative to exchange of the original intraocular lens (IOL) to treat high anisometropia in pseudophakic eyes. We present our results. PATIENTS AND METHOD: A second IOL (piggyback) was implanted in 27 patients from 2000 to 2006. Nineteen patients were clinically investigated late postoperatively, and data for the other eight patients were evaluated from the patients' files. RESULTS: The patients were 65+/-9 years old. Follow-up time was 38+/-25 months. The mean preoperative spherical equivalent (SE) in the myopic eyes was -7.86+/-3.82 D and in the hyperopic eyes was 1.64+/-0.74 D. After surgery, the mean SE in the myopic eyes was -1.77+/-1.82 D and in the hyperopic eyes was -0.09+/-0.51 D. Postoperative anisometropia was reduced from 4.64+/-3.3 D. to 0.9+/-0.82 D. CONCLUSION: Piggyback lens implantation is a safe and effective surgical procedure and is less traumatic than exchange of the original IOL.


Asunto(s)
Implantación de Lentes Intraoculares/métodos , Refracción Ocular , Anciano , Anisometropía/cirugía , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Miopía/cirugía , Seudofaquia , Estudios Retrospectivos , Factores de Tiempo , Agudeza Visual
9.
Ophthalmologe ; 104(10): 889-91, 2007 Oct.
Artículo en Alemán | MEDLINE | ID: mdl-17486349

RESUMEN

Sebaceous gland carcinoma can clinically mimic benign conditions such as chalazion and blepharoconjunctivitis. This carcinoma should be histologically excluded for every unilateral, recalcitrant chalazion and every unilateral, therapy refractory blepharitis. Autosomal dominant Muir-Torre syndrome should be considered in patients who develop sebaceous gland carcinoma of the ocular adnexa. In this case, the sebaceous gland carcinoma is combined with visceral carcinoma.


Asunto(s)
Blefaritis/etiología , Neoplasias de los Párpados/diagnóstico , Queratoconjuntivitis/etiología , Neoplasias Orbitales/diagnóstico , Neoplasias de las Glándulas Sebáceas/diagnóstico , Anciano de 80 o más Años , Biopsia , Colectomía , Neoplasias del Colon/diagnóstico , Neoplasias del Colon/patología , Neoplasias del Colon/cirugía , Diagnóstico Diferencial , Neoplasias de los Párpados/patología , Neoplasias de los Párpados/cirugía , Párpados/patología , Párpados/cirugía , Femenino , Humanos , Imagen por Resonancia Magnética , Neoplasias Primarias Secundarias/diagnóstico , Neoplasias Primarias Secundarias/patología , Neoplasias Primarias Secundarias/cirugía , Órbita/patología , Neoplasias Orbitales/patología , Neoplasias Orbitales/cirugía , Cuidados Paliativos , Neoplasias de las Glándulas Sebáceas/patología , Neoplasias de las Glándulas Sebáceas/cirugía , Síndrome
10.
Ophthalmologe ; 103(1): 35-9, 2006 Jan.
Artículo en Alemán | MEDLINE | ID: mdl-15983778

RESUMEN

PURPOSE: Visualization of the anterior chamber angle is an important diagnostic method in patients with angle-closure glaucoma. In this study, optical coherence tomography (OCT) was used to image the angle width, the iris configuration, and the iris thickness in patients with angle-closure glaucoma. METHODS: Thirteen eyes of 11 patients suffering from angle-closure glaucoma were studied with slitlamp-adapted OCT. All patients were treated with Nd:YAG laser iridotomy. The angle width ( degrees ), the angle opening distance (AOD) (microm), and the iris thickness (microm) were measured with OCT. The configuration of the iris was classified as steeply convex, convex, or flat. RESULTS: The mean angle width was preoperatively 5.1+/-5.0 degrees (0-15 degrees ) and enlarged significantly (p=0.007) to 10.4+/-5.5 degrees (0-19 degrees ) postoperatively. The AOD changed from 71+/-55 microm (0-157 microm) preoperatively to 143+/-74 microm (0-256 microm) postoperatively (p<0.001). The mean iris thickness was 338+/-33 microm. With the exception of two eyes the predominant iris configuration changed from convex to flat. CONCLUSIONS: OCT allowed visualization and noninvasive assessment of the anterior chamber angle region in patients with angle-closure glaucoma. Our results suggest that goniometry with OCT could improve the evaluation in patients with narrow or closed anterior chamber angles.


Asunto(s)
Glaucoma de Ángulo Cerrado/diagnóstico , Glaucoma de Ángulo Cerrado/cirugía , Gonioscopía/métodos , Interpretación de Imagen Asistida por Computador/métodos , Iridectomía/métodos , Terapia por Láser/métodos , Tomografía de Coherencia Óptica/métodos , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cuidados Posoperatorios , Cuidados Preoperatorios/métodos , Pronóstico , Resultado del Tratamiento
11.
Br J Ophthalmol ; 87(8): 952-5, 2003 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-12881332

RESUMEN

AIM: To assess the value of slit lamp adapted optical coherence tomography (OCT) for the management of malignant glaucoma following filtration surgery. METHODS: Two patients (three eyes) developed malignant glaucoma following filtration surgery for primary open angle glaucoma (POAG). With slit lamp adapted OCT it was possible to image non-invasively the anterior chamber angle structures during the malignant glaucoma episode, and after pars plana vitrectomy (PPV) with anterior chamber reformation. RESULTS: OCT revealed in both patients a markedly decreased anterior chamber angle with extreme shallowing of the anterior chamber depth during the acute malignant glaucoma phase. This critical closure of the anterior chamber angle resolved after PPV and deepening of the anterior chamber with viscoelastic. After PPV the quantitative values of the anterior chamber angle (ACA) and the anterior chamber opening distance (AOD) increased from 0 to an ACA of 35 degrees (SD 14 degrees ) and an AOD of 426 (SD 162) micro m. CONCLUSIONS: Non-contact slit lamp adapted OCT was helpful to evaluate the anterior chamber structures in malignant glaucoma, and thus could improve management of this serious clinical disorder.


Asunto(s)
Cirugía Filtrante/efectos adversos , Glaucoma/diagnóstico , Tomografía/métodos , Anciano , Cámara Anterior/patología , Cámara Anterior/cirugía , Femenino , Glaucoma/etiología , Glaucoma/patología , Glaucoma de Ángulo Abierto/cirugía , Humanos , Persona de Mediana Edad , Vitrectomía
12.
Rofo ; 156(2): 156-9, 1992 Feb.
Artículo en Alemán | MEDLINE | ID: mdl-1739775

RESUMEN

During a period of 24 months, 211 patients were investigated in our radiological clinic by emergency CT of the spine on the day of the injury. In 128 (61%) a traumatic lesion could be demonstrated. Most frequently involved were the transitional zones of the spine (occipito-atlanto-axial segment, cervico-thoracic and thoracolumbar segments). In 68% of these patients, conventional radiographs of the spine of these critical zones proved to be inadequate. 20% of the lesions demonstrated by CT could not be seen on conventional radiographs and 41% were shown incompletely. In 61% of cases CT provided additional information when compared with conventional radiography.


Asunto(s)
Mielografía , Traumatismos Vertebrales/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Urgencias Médicas , Humanos , Luxaciones Articulares/diagnóstico por imagen , Traumatismo Múltiple/diagnóstico por imagen , Estudios Retrospectivos , Fracturas de la Columna Vertebral/diagnóstico por imagen , Estenosis Espinal/diagnóstico por imagen , Columna Vertebral/diagnóstico por imagen
13.
Rofo ; 154(2): 180-6, 1991 Feb.
Artículo en Alemán | MEDLINE | ID: mdl-1847543

RESUMEN

Segmental aplasias of the inferior vena cava, thrombosis of the vena cava, tumour infiltration (e.g. renal neoplasms via the renal vein) and external compression (e.g. large hepatic metastases) may produce similar radiomorphologic changes in chest x-ray DSA and CT. These radiomorphological changes are described by case reports. DSA clearly demonstrates the course of the vessels and the collaterals involved. CT may elucidate the paracaval vascular changes. It is only a synopsis of cavography (DSA) and CT with reference to embryogenesis that will lead to a reliable diagnosis and enable a definite decision on therapy and prognosis.


Asunto(s)
Angiografía de Substracción Digital , Neoplasias Renales/patología , Neoplasias Hepáticas/secundario , Trombosis/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Vena Cava Inferior , Vena Cava Inferior/anomalías , Adolescente , Adulto , Anciano , Constricción Patológica/diagnóstico por imagen , Constricción Patológica/etiología , Diagnóstico Diferencial , Femenino , Humanos , Neoplasias Hepáticas/patología , Masculino , Persona de Mediana Edad , Vena Cava Inferior/diagnóstico por imagen , Vena Cava Inferior/patología
14.
Rofo ; 157(6): 552-4, 1992 Dec.
Artículo en Alemán | MEDLINE | ID: mdl-1457790

RESUMEN

101 portangiographies in patients with liver metastases from colorectal primaries who underwent hepatic intraarterial or intraperitoneal chemotherapy were performed and studied between January 1991 and February 1992. 81% of the examinations did not involve complications. In 19% of the angiographies abnormalities of the arterial perfusion of the liver, like occlusion, dissection or narrowing of hepatic arteries, were found. We conclude that portangiography is a very important investigation before regional chemotherapy.


Asunto(s)
Neoplasias Colorrectales/patología , Neoplasias Hepáticas/secundario , Angiografía , Cateterismo Venoso Central/instrumentación , Neoplasias Colorrectales/diagnóstico por imagen , Neoplasias Colorrectales/tratamiento farmacológico , Estudios de Seguimiento , Alemania/epidemiología , Humanos , Neoplasias Hepáticas/diagnóstico por imagen , Neoplasias Hepáticas/tratamiento farmacológico , Sistema Porta/diagnóstico por imagen , Estudios Retrospectivos
15.
Rofo ; 161(5): 432-7, 1994 Nov.
Artículo en Alemán | MEDLINE | ID: mdl-7948998

RESUMEN

"Dynamic" double contrast arthro-CT in internal and external rotation was performed on 42 patients with recurrent subluxation of the shoulder. The differential distribution of contrast and air caused by the rotation resulted in optimal demonstration of the capsulo-labrale components responsible for joint stability. In 22 patients there appeared to be an indication for arthroscopy; this confirmed the previous findings. In all cases the anterior part of the capsule and the middle and lower labrum were seen best during internal rotation. In this way all the 15 anterior capsule lesions could be seen, as well as 16 out of 17 Bankart lesions; it also showed one lesion of the middle labrum which had been masked by a haemarthrosis during external rotation. The study also defined lesions of the upper labrum caused by a different pathological mechanism which was present in 7 patients (6 Andrews and 1 S.L.A.P. lesion). These and 2 posterior labrum tears could be diagnosed during external rotation. Sensitivity for lesions of the anterior labrum was 95%.


Asunto(s)
Luxación del Hombro/diagnóstico por imagen , Articulación del Hombro/diagnóstico por imagen , Tomografía Computarizada por Rayos X/métodos , Adolescente , Adulto , Diagnóstico Diferencial , Femenino , Humanos , Yopamidol , Cápsula Articular/diagnóstico por imagen , Masculino , Persona de Mediana Edad , Recurrencia , Rotación , Tomografía Computarizada por Rayos X/instrumentación
16.
Rofo ; 159(6): 548-54, 1993 Dec.
Artículo en Alemán | MEDLINE | ID: mdl-8298115

RESUMEN

93 patients with 102 intraarticular calcaneus fractures (ICF) were examined by CT from 1986 to 1992. The images were evaluated with the use of a modified classification based on the number of fractured heel bone facets (2 facets in 4.8%, 3 facets in 53.9%, 4 facets in 32.3%, comminution in 8.8% of the fractures), the involvement of the calcaneus-cuboid joint (60.8%) and the fracture mechanism (tongue-type in 28.4%, joint depression in 62.7%) with the weight-bearing calcaneal compartments taken into special consideration. In that way, each intraarticular calcaneus fracture could be scored, enabling a fast diagnosis comprising factors relevant for the therapy and prognosis.


Asunto(s)
Calcáneo/diagnóstico por imagen , Calcáneo/lesiones , Fracturas Óseas/clasificación , Fracturas Óseas/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Adolescente , Adulto , Anciano , Femenino , Fracturas Óseas/epidemiología , Alemania Occidental/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Tomografía Computarizada por Rayos X/métodos
17.
Rofo ; 162(3): 224-8, 1995 Mar.
Artículo en Alemán | MEDLINE | ID: mdl-7718777

RESUMEN

PURPOSE: Anteversion of the femoral neck was measured by MRI in 19 children (37 hips) preoperatively before femoral rotation osteotomies. MATERIAL AND METHODS: The results of this new technique were compared with values for anteversion obtained by CT and ultrasound. The measurements were performed independently by two observers to determine the correlation between the three different methods and to assess their reliability. RESULTS: It was possible to show a high correlation coefficient (Pearson) between MRI and CT (r = 0.77) as well as MRI and sonography (r = 0.81). The mean angles obtained by CT (34 degrees, range +5 to +82 degrees) and ultrasound (25.6 degrees, range +10 to +40 degrees) appeared larger than the MRI values (mean angle 23.2 degrees, range 0 to +65 degrees), which can be explained by the different measurement techniques. Mean inter- and intra-variability was low for MRI (r = 0.97 and r = 0.97) and CT (r = 0.99 and r = 0.96) but slightly higher for sonography (r = 0.88 and r = 0.88). MRI is a new reliable and precise method to evaluate femoral anteversion that does not require ionising radiation. CONCLUSION: MRI is recommended for preoperative planning of paediatric femoral rotation osteotomy patients.


Asunto(s)
Cuello Femoral/patología , Imagen por Resonancia Magnética , Tomografía Computarizada por Rayos X , Adolescente , Fenómenos Biomecánicos , Niño , Preescolar , Femenino , Cuello Femoral/diagnóstico por imagen , Humanos , Imagen por Resonancia Magnética/métodos , Imagen por Resonancia Magnética/estadística & datos numéricos , Masculino , Variaciones Dependientes del Observador , Estudios Prospectivos , Reproducibilidad de los Resultados , Tomografía Computarizada por Rayos X/métodos , Tomografía Computarizada por Rayos X/estadística & datos numéricos , Anomalía Torsional , Ultrasonografía
18.
Ophthalmologe ; 101(2): 140-5, 2004 Feb.
Artículo en Alemán | MEDLINE | ID: mdl-14991310

RESUMEN

PURPOSE: Currently the microkeratome incision and the ablation depth are unpredictable in laser in situ keratomileusis (LASIK). Online optical coherence pachymetry is a high-resolution and non-contact method, which enables the corneal thickness changes to be monitored intraoperatively. METHOD. In 12 patients undergoing myopic LASIK, online optical coherence pachymetry with a wavelength of 1310 nm and a measurement frequency of 74 Hz was studied. The central corneal thickness changes were determined continuously. RESULTS: Online optical coherence pachymetry enabled intraoperative visualization and assessment of the central corneal thickness, the flap thickness after the microkeratome pass, the time-resolved ablation and the residual stromal thickness. Intraoperatively the mean flap thickness was 113+/-31 microm and the residual stromal thickness was 277+/-49 microm. The optically determined ablation depth was 116+/-30 micro m, which corresponded to 33 microm higher mean values than the nominal ablation depth. CONCLUSIONS: Online optical coherence pachymetry enabled the flap and residual stromal thickness to be measured intraoperatively. Also the individual ablation depth and possible dehydration effects of the cornea were monitored continuously. Thus, online optical coherence pachymetry could contribute to improve the safety standards during LASIK.


Asunto(s)
Astigmatismo/cirugía , Queratomileusis por Láser In Situ , Miopía/cirugía , Adulto , Anciano , Algoritmos , Córnea/anatomía & histología , Córnea/cirugía , Sustancia Propia/anatomía & histología , Sustancia Propia/cirugía , Interpretación Estadística de Datos , Humanos , Queratomileusis por Láser In Situ/instrumentación , Queratomileusis por Láser In Situ/métodos , Persona de Mediana Edad , Monitoreo Intraoperatorio , Óptica y Fotónica , Estudios Prospectivos , Reproducibilidad de los Resultados , Procesamiento de Señales Asistido por Computador , Colgajos Quirúrgicos
19.
Ophthalmologe ; 95(12): 823-7, 1998 Dec.
Artículo en Alemán | MEDLINE | ID: mdl-10025145

RESUMEN

BACKGROUND: Cataract secondary to juvenile rheumatoid arthritis is a severe, vision-threatening complication in early childhood. Intraocular lens implantation is controversial. The follow-up of four pseudophakic eyes of three patients and their perioperative therapeutic regimen were retrospectively analyzed. Early and late postoperative complications are reported. PATIENTS AND METHODS: Both girls had lens aspiration and posterior lens implantation at the ages of 6 and 12 years, the boy at the age of 10 and 14 years. All patients had relapsing anterior uveitis. The follow-up time was 3 years (1-6 years). One girl was diagnosed with sarcoidosis, causing juvenile arthritis. Both girls had perioperative methothrexate and prednisolone therapy. The boy had azathioprine therapy at the time of his first cataract surgery; later he had no systemic therapy. Both girls' intraocular lenses were implanted at different eye hospitals. RESULTS: Both girls had severe inflammatory reactions after surgery. At the hospitals both eyes had surgical revision for iris capture. In one case this was combined with exchanging the intraocular lens. Iris capture persisted for this eye and later vitrectomy with silicone oil filling was necessary to delay phthisis, resulting in amaurosis. For two pseudophakic eyes vitrectomy was necessary later because of severe vitreous opacities, but visual acuity was severely diminished by chronic cystoid macular edema and epiretinal membranes. The boy developed in his second eye intermittent iris bombata and persistent secondary glaucoma, visual acuity was stabilized at 0.5. CONCLUSIONS: Secondary cataract due to juvenile rheumatoid arthritis or sarcoidosis is a difficult situation for phacoemulsification with intraocular lens implantation in children. For severe inflammatory complications intense local and systemic anti-inflammatory therapy is mandatory. Visual prognosis is reduced for the uveitic posterior segment and glaucoma complications. IOL implantation can be recommended for only a very few patients.


Asunto(s)
Artritis Juvenil/cirugía , Lentes Intraoculares , Seudofaquia/etiología , Adolescente , Niño , Preescolar , Análisis de Falla de Equipo , Femenino , Estudios de Seguimiento , Humanos , Masculino , Seudofaquia/cirugía , Reoperación , Uveítis Anterior/etiología , Uveítis Anterior/cirugía
20.
Ophthalmologe ; 98(6): 541-4, 2001 Jun.
Artículo en Alemán | MEDLINE | ID: mdl-11450477

RESUMEN

BACKGROUND: Combined topical and intracameral anaesthesia has become increasingly popular in cataract surgery. The purpose of this study was to determine the risk of capsular lesions with an intact motility during surgery. PATIENTS AND METHODS: In a prospective clinical study, we analyzed 2000 phacoemulsifications with IOL implantation performed by an experienced surgeon with combined sponge and intracameral lidocain anaesthesia. Preoperatively two grades of difficulty of the surgical procedure were defined. RESULTS: Operations were carried out on 1,658 patients with a (grade 1) low degree and 342 patients (grade 2) with a high degree of difficulty (17.1%). Capsular lesions occurred in 17 operations (0.85%), 15 in cases with a high degree of difficulty (88%). In 12 of these, an anterior vitrectomy was necessary and in 1 operation a pars plana vitrectomy after application of additional retrobulbar anaesthesia was performed. CONCLUSIONS: In this study the incidence of capsular lesions was not increased compared to other methods of anaesthesia. Anterior vitrectomy with the patient under combined sponge and intracameral anaesthesia, was possible without retrobulbar anaesthesia.


Asunto(s)
Anestesia Local , Complicaciones Intraoperatorias/etiología , Cápsula del Cristalino/lesiones , Lentes Intraoculares , Lidocaína , Anciano , Anciano de 80 o más Años , Cámara Anterior , Femenino , Humanos , Complicaciones Intraoperatorias/cirugía , Cápsula del Cristalino/cirugía , Masculino , Estudios Prospectivos , Vitrectomía
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