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1.
Acta Ortop Mex ; 35(4): 341-347, 2021.
Article in Spanish | MEDLINE | ID: mdl-35139593

ABSTRACT

INTRODUCTION: The aim of this study was to describe the epidemiology and to estimate the direct medical costs of hip fracture among elderly patients in Mexico. MATERIAL AND METHODS: An observational, cross sectional and retrospective study was undertaken. Hospital discharge and surgical procedures for the period 2013-2018 were the databases used for the analysis, and obtained from General Directorate of Health Information. Variables included were sex, federal entity, age, year of discharge, and fracture type according to the CIE-10; and also, the supplies needed for the surgical procedures. RESULTS: A total of 16,829 patients with hip fracture were discharge, 69% were women, and the mean for age was 79 years old and for the hospital stay length was nine days. The most frequent fracture type was the femur neck with 77% and the average medical costs was USD$45,122,228.00. CONCLUSION: Falling risks increase with age, especially in patients among 80-89 years of age, hence, is expected that this type of pathology increases in the following years. The medical costs for treatment of hip fracture represents an economic impact on health services. For that reason, the implementation of prevention strategies, risk of falling for example, is the one of most efficient approach.


INTRODUCCIÓN: El objetivo general de la investigación fue describir la epidemiología y estimar los costos médicos directos de la fractura de cadera en el adulto mayor en México. MATERIAL Y MÉTODOS: Se realizó un estudio observacional y transversal retrospectivo. Se utilizaron dos bases de datos obtenidas de la Dirección General de Información en Salud del período 2013-2018: egresos hospitalarios y procedimientos quirúrgicos. Las variables incluidas fueron: sexo, entidad federativa, edad, año de registro y tipo de fractura de acorde a la CIE-10; de igual forma, todos los insumos necesarios para la realización del procedimiento quirúrgico. RESULTADOS: Se registraron 16,829 ingresos de pacientes con fractura de cadera. Las mujeres representaron 69% del total de pacientes, la edad en promedio fue de 79 años y la estancia hospitalaria fue de nueve días, 77% de las fracturas fueron de cuello de fémur y el promedio de los costos médicos directos de los procedimientos ascendieron a USD $45,122,228.00 para el período estudiado. CONCLUSIÓN: El riesgo de caídas aumenta con la edad, especialmente en el grupo etario de 80-89 años, por lo que se espera que este tipo de patologías se incremente en los próximos años. De igual forma, los costos para la atención de estas fracturas representan un impacto económico para los sistemas de salud. De manera que la implementación de estrategias de prevención, por ejemplo, en caídas es el método más eficiente para contribuir al envejecimiento saludable.


Subject(s)
Hip Fractures , Aged , Aged, 80 and over , Cross-Sectional Studies , Female , Hip Fractures/epidemiology , Hip Fractures/surgery , Humans , Length of Stay , Mexico/epidemiology , Retrospective Studies
2.
Phys Med Biol ; 62(20): 7938-7958, 2017 Oct 03.
Article in English | MEDLINE | ID: mdl-28858854

ABSTRACT

Boron neutron capture therapy (BNCT) is a treatment modality that combines different radiation qualities. Since the severity of biological damage following irradiation depends on the radiation type, a quantity different from absorbed dose is required to explain the effects observed in the clinical BNCT in terms of outcome compared with conventional photon radiation therapy. A new approach for calculating photon iso-effective doses in BNCT was introduced previously. The present work extends this model to include information from dose-response assessments in animal models and humans. Parameters of the model were determined for tumour and precancerous tissue using dose-response curves obtained from BNCT and photon studies performed in the hamster cheek pouch in vivo models of oral cancer and/or pre-cancer, and from head and neck cancer radiotherapy data with photons. To this end, suitable expressions of the dose-limiting Normal Tissue Complication and Tumour Control Probabilities for the reference radiation and for the mixed field BNCT radiation were developed. Pearson's correlation coefficients and p-values showed that TCP and NTCP models agreed with experimental data (with r > 0.87 and p-values >0.57). The photon iso-effective dose model was applied retrospectively to evaluate the dosimetry in tumours and mucosa for head and neck cancer patients treated with BNCT in Finland. Photon iso-effective doses in tumour were lower than those obtained with the standard RBE-weighted model (between 10% to 45%). The results also suggested that the probabilities of tumour control derived from photon iso-effective doses are more adequate to explain the clinical responses than those obtained with the RBE-weighted values. The dosimetry in the mucosa revealed that the photon iso-effective doses were about 30% to 50% higher than the corresponding RBE-weighted values. While the RBE-weighted doses are unable to predict mucosa toxicity, predictions based on the proposed model are compatible with the observed clinical outcome. The extension of the photon iso-effective dose model has allowed, for the first time, the determination of the photon iso-effective dose for unacceptable complications in the dose-limiting normal tissue. Finally, the formalism developed in this work to compute photon-equivalent doses can be applied to other therapies that combine mixed radiation fields, such as hadron therapy.


Subject(s)
Boron Neutron Capture Therapy , Disease Models, Animal , Head and Neck Neoplasms/radiotherapy , Melanoma/radiotherapy , Mouth Neoplasms/radiotherapy , Mucositis/radiotherapy , Photons , Animals , Carcinoma, Squamous Cell/radiotherapy , Cricetinae , Humans , Precancerous Conditions/radiotherapy , Radiometry
3.
Appl Radiat Isot ; 106: 226-32, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26256647

ABSTRACT

The present work is part of a preclinical in vitro study to assess the efficacy of BNCT applied to liver or lung coloncarcinoma metastases and to limb osteosarcoma. Adherent growing cell lines can be irradiated as adherent to the culture flasks or as cell suspensions, differences in radio-sensitivity of the two modalities of radiation exposure have been investigated. Dose related cell survival and cell cycle perturbation results evidenced that the radiosensitivity of adherent cells is higher than that of the suspended ones.


Subject(s)
Boron Neutron Capture Therapy , Cell Adhesion/radiation effects , Gamma Rays , Neoplasms/radiotherapy , Neutrons , Animals , Cell Cycle/radiation effects , Cell Line, Tumor , Neoplasms/pathology , Rats
4.
Med Phys ; 42(7): 4161-73, 2015 Jul.
Article in English | MEDLINE | ID: mdl-26133616

ABSTRACT

PURPOSE: Many types of lung tumors have a very poor prognosis due to their spread in the whole organ volume. The fact that boron neutron capture therapy (BNCT) would allow for selective targeting of all the nodules regardless of their position, prompted a preclinical feasibility study of ex situ BNCT at the thermal neutron facility of RA-3 reactor in the province of Buenos Aires, Argentina. (l)-4p-dihydroxy-borylphenylalanine fructose complex (BPA-F) biodistribution studies in an adult sheep model and computational dosimetry for a human explanted lung were performed to evaluate the feasibility and the therapeutic potential of ex situ BNCT. METHODS: Two kinds of boron biodistribution studies were carried out in the healthy sheep: a set of pharmacokinetic studies without lung excision, and a set that consisted of evaluation of boron concentration in the explanted and perfused lung. In order to assess the feasibility of the clinical application of ex situ BNCT at RA-3, a case of multiple lung metastases was analyzed. A detailed computational representation of the geometry of the lung was built based on a real collapsed human lung. Dosimetric calculations and dose limiting considerations were based on the experimental results from the adult sheep, and on the most suitable information published in the literature. In addition, a workable treatment plan was considered to assess the clinical application in a realistic scenario. RESULTS: Concentration-time profiles for the normal sheep showed that the boron kinetics in blood, lung, and skin would adequately represent the boron behavior and absolute uptake expected in human tissues. Results strongly suggest that the distribution of the boron compound is spatially homogeneous in the lung. A constant lung-to-blood ratio of 1.3 ± 0.1 was observed from 80 min after the end of BPA-F infusion. The fact that this ratio remains constant during time would allow the blood boron concentration to be used as a surrogate and indirect quantification of the estimated value in the explanted healthy lung. The proposed preclinical animal model allowed for the study of the explanted lung. As expected, the boron concentration values fell as a result of the application of the preservation protocol required to preserve the lung function. The distribution of the boron concentration retention factor was obtained for healthy lung, with a mean value of 0.46 ± 0.14 consistent with that reported for metastatic colon carcinoma model in rat perfused lung. Considering the human lung model and suitable tumor control probability for lung cancer, a promising average fraction of controlled lesions higher than 85% was obtained even for a low tumor-to-normal boron concentration ratio of 2. CONCLUSIONS: This work reports for the first time data supporting the validity of the ovine model as an adequate human surrogate in terms of boron kinetics and uptake in clinically relevant tissues. Collectively, the results and analysis presented would strongly suggest that ex situ whole lung BNCT irradiation is a feasible and highly promising technique that could greatly contribute to the treatment of metastatic lung disease in those patients without extrapulmonary spread, increasing not only the expected overall survival but also the resulting quality of life.


Subject(s)
Boron Neutron Capture Therapy/methods , Lung Neoplasms/radiotherapy , Animals , Argentina , Boron/pharmacokinetics , Boron/therapeutic use , Boron Compounds/pharmacokinetics , Boron Neutron Capture Therapy/instrumentation , Feasibility Studies , Fructose/analogs & derivatives , Fructose/pharmacokinetics , Humans , Lung/metabolism , Lung/radiation effects , Lung Neoplasms/metabolism , Models, Animal , Models, Biological , Photons , Radiometry/methods , Radiotherapy Dosage , Radiotherapy Planning, Computer-Assisted , Sheep , Time Factors , Tissue Distribution
5.
Med Phys ; 36(10): 4519-29, 2009 Oct.
Article in English | MEDLINE | ID: mdl-19928083

ABSTRACT

PURPOSE: The purpose of this study is to assess the potential of dynamic infrared imaging (DIRI) as a functional, noninvasive technique for evaluating the skin acute toxicity and tumor control within the framework of the Argentine boron neutron capture therapy (BNCT) program for cutaneous malignant melanoma. METHODS: Two patients enrolled in the Argentine phase I/II BNCT clinical trial for cutaneous malignant melanoma were studied with DIRI. An uncooled infrared camera, providing a video output signal, was employed to register the temperature evolution of the normal skin and tumor regions in patients subjected to a mild local cooling (cold stimulus). In order to study the spatial correlation between dose and acute skin reactions, three-dimensional representations of the superficial dose delivered to skin were constructed and cameralike projections of the dose distribution were coregistered with visible and infrared images. RESULTS: The main erythematous reaction was observed clinically between the second and fifth week post-BNCT. Concurrently, with its clinical onset, a reactive increase above the basal skin temperature was observed with DIRI in the third week post-BNCT within regions that received therapeutic doses. Melanoma nodules appeared as highly localized hyperthermic regions. 2 min after stimulus, these regions reached a temperature plateau and increased in size. Temperature differences with respect to normal skin up to 10 degrees C were observed in the larger nodules. CONCLUSIONS: Preliminary results suggest that DIRI, enhanced by the application of cold stimuli, may provide useful functional information associated with the metabolism and vasculature of tumors and inflammatory processes related to radiation-induced changes in the skin as well. These capabilities are aimed at complementing the clinical observations and standard imaging techniques, such as CT and Doppler ultrasound.


Subject(s)
Boron Neutron Capture Therapy/methods , Melanoma/diagnosis , Melanoma/radiotherapy , Radiotherapy, Computer-Assisted/methods , Skin Neoplasms/diagnosis , Skin Neoplasms/radiotherapy , Thermography/methods , Aged , Female , Humans , Infrared Rays , Male , Treatment Outcome
6.
Nutr Hosp ; 24(4): 479-84, 2009.
Article in English | MEDLINE | ID: mdl-19721929

ABSTRACT

OBJECTIVES: Lack of routine patient's nutritional assessment and prescription of long fasting periods throughout the perioperative period are still widely prevalent despite the advances in surgical care. Therefore, the aim of this study was to assess nutritional routines in two surgical wards. METHODS: Adult patients undergoing laparotomy at two distinct units (gastrointestinal and gynecologic) in two public hospitals (one of them a university) were enrolled. Patients were divided in minor and major (groups A and B) procedures and were nutritionally assessed at admission. Daily diet intake and a 24 hour recall were performed. Patients rated the quality of the meals, as well as registered the reasons for not ingesting it fully. RESULTS: Patients in group B presented with poorer nutritional status. Group A patients resumed oral diets on the first post operative day and most of them received regular diets (85.5%). In group B, only 4.7% were allowed a regular diet on the first PO day, 7.0% received soft diets, 30.2% full liquid diets, 27.9% clear liquids and the remaining 30.2% were on NPO. Patients in this group had a slower progression of diets from liquid to regular solid meals, with 7% of them still on NPO on the fifth PO day. Contrary to group B, patients in group A did not present with cumulative caloric and protein deficits throughout the postoperative period. Overall tolerance of the early diet was good. CONCLUSION: Malnutrition is still high among major surgical patients. Early oral nutrition can be feasible and well tolerated with few side effects, when prescribed.


Subject(s)
Eating , Laparotomy , Nutritional Status , Perioperative Care , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Young Adult
7.
Appl Radiat Isot ; 67(7-8 Suppl): S50-3, 2009 Jul.
Article in English | MEDLINE | ID: mdl-19375342

ABSTRACT

As part of phase I/II melanoma BNCT clinical trial conducted in Argentina in a cooperative effort of the Argentine Atomic Energy Commission (CNEA) and the Oncology Institute Angel H. Roffo (IOAHR), 7 patients (6 female-1 male) received eight treatment sessions covering ten anatomical areas located in extremities. Mean age of the patients was 64 years (51-74). The treatments were performed between October 2003 and June 2007. All patients presented multiple subcutaneous skin metastases of melanoma and received an infusion containing approximately 14 gr/m(2) of (10)borophenyl-alanine (BPA) followed by the exposition of the area to a mixed thermal-epithermal neutron beam at the RA-6 reactor. The maximum prescribed dose to normal skin ranged from 16.5 to 24 Gy-Eq and normal tissue administered dose varied from 15.8 to 27.5 Gy-Eq. Considering evaluable nodules, 69.3% of overall response and 30.7% of no changes were seen. The toxicity was acceptable, with 3 out of 10 evaluable areas showing ulceration (30% toxicity grade 3).


Subject(s)
Boron Neutron Capture Therapy/methods , Melanoma/radiotherapy , Skin Neoplasms/radiotherapy , Aged , Argentina , Boron Compounds/therapeutic use , Female , Humans , Leg , Male , Middle Aged , Phenylalanine/analogs & derivatives , Phenylalanine/therapeutic use , Radiation-Sensitizing Agents/therapeutic use , Radiotherapy Dosage , Radiotherapy Planning, Computer-Assisted
8.
Appl Radiat Isot ; 67(7-8 Suppl): S153-6, 2009 Jul.
Article in English | MEDLINE | ID: mdl-19386505

ABSTRACT

A previous work concerning tumor control and skin damage in cutaneous melanoma treatments with BNCT has been extended to include doses, volumes and responses of 104 subcutaneous lesions from all patients treated in Argentina. Acute skin reactions were also scored for these patients, and cumulative dose-area histograms and dose-based figures of merit for skin were calculated. Broadening the tumor response analysis with the latest data showed that the (minimum or mean) tumor dose is not a good predictor of the observed clinical outcome by itself. However, when the tumor volume was included in the model as second explicative variable, the dose increases its significance and becomes a critical variable jointly with the volume (p-values<0.05). A preliminary analysis to estimate control doses for two groups of tumor sizes revealed that for small tumor volumes (< 0.1cm(3)) doses greater than 20 Gy-Eq produce a high tumor control (> 80%). However, when tumor volumes are larger than 0.1cm(3), control is moderate (< 40%) even for minimum doses up to 40 Gy-Eq. Some quantities based on skin doses, areas and complication probabilities were proposed as candidates for predicting the severity of the early skin reactions. With the current data, all the evaluated figures of merit derived similar results: ulceration is present among the cases for which these quantities take the highest values.


Subject(s)
Boron Neutron Capture Therapy/adverse effects , Boron Neutron Capture Therapy/statistics & numerical data , Melanoma/radiotherapy , Radiation Injuries/etiology , Skin Neoplasms/radiotherapy , Dose-Response Relationship, Radiation , Erythema/etiology , Humans , Melanoma/pathology , Predictive Value of Tests , Radiotherapy Planning, Computer-Assisted/statistics & numerical data , Skin Neoplasms/pathology , Skin Ulcer/etiology
9.
Appl Radiat Isot ; 67(7-8 Suppl): S54-8, 2009 Jul.
Article in English | MEDLINE | ID: mdl-19380232

ABSTRACT

We recently initiated a program aimed to investigate the suitability of dynamic infrared imaging for following-up nodular melanoma patients treated with BNCT. The reason that makes infrared imaging attractive is the fact that it constitutes a functional and non-invasive imaging method, providing information on the normal and abnormal physiologic response of the nervous and vascular systems, as well as the local metabolic rate and inflammatory processes that ultimately appear as differences in the skin temperature. An infrared camera, with a focal plane array of 320 x 240 uncooled ferroelectric detectors is employed, which provides a video stream of the infrared emission in the 7-14 microm wavelength band. A double blackbody is used as reference for absolute temperature calibration. After following a protocol for patient preparation and acclimatization, a basal study is performed. Subsequently, the anatomic region of interest is subjected to a provocation test (a cold stimulus), which induces an autonomic vasoconstriction reflex in normal structures, thus enhancing the thermal contrast due to the differences in the vasculature of the different skin regions. Radiation erythema reactions and melanoma nodules possess typically a faster temperature recovery than healthy, non-irradiated skin. However, some other non-pathological structures are also detectable by infrared imaging, (e.g. scars, vessels, arteriovenous anastomoses and injuries), thus requiring a multi-study comparison in order to discriminate the tumor signal. Besides the superficial nodules, which are readily noticeable by infrared imaging, we have detected thermal signals that are coincident with the location of non-palpable nodules, which are observable by CT and ultrasound. Diffuse regions of fast temperature recovery after a cold stimulus were observed between the third and sixth weeks post-BNCT, concurrent with the clinical manifestation of radiation erythema. The location of the erythematous visible and infrared regions is consistent with the 3D dosimetry calculations.


Subject(s)
Boron Neutron Capture Therapy , Infrared Rays , Melanoma/radiotherapy , Skin Neoplasms/radiotherapy , Thermography/methods , Aged , Boron Neutron Capture Therapy/adverse effects , Cold Temperature , Erythema/etiology , Erythema/pathology , Erythema/physiopathology , Female , Humans , Leg , Male , Melanoma/pathology , Melanoma/physiopathology , Radiotherapy Planning, Computer-Assisted , Skin Neoplasms/pathology , Skin Neoplasms/physiopathology , Skin Physiological Phenomena , Skin Temperature , Time Factors
10.
Aesthetic Plast Surg ; 32(4): 620-3, 2008 Jul.
Article in English | MEDLINE | ID: mdl-18414935

ABSTRACT

Approximately 5% of 1-year-old children have prominent ears. The most common findings are underdevelopment or lack of the antihelical fold, overdevelopment of the concha, a scapha-conchal angle greater than 130 degrees, and a protruding lobule. This study compared the cephaloauricular and scaphaconchal angles of 15 patients with prominent ears and 15 patients in a control group. Alginate was used to create a mold of each patient's right ear. Afterward the molds were cut transversally for measurement of the angles. The first cut was made at the middle of the ear's cephalocaudal length. The second cut was made in the superior piece midway between the first cut and the superior extremity of the ear. The cephaloauricular angle was defined as the intersection of a straight line running through the tragus insertion and the lateral portion of the mastoid region with a straight line that running through the tragus and the middle of the helix. The scaphaconchal angle was obtained in the second cut by measurement of the angles formed by these two structures molded in the posterior aspect of the ear. The Student's t test was used for statistical analysis. The average cephaloauricular angle was 47.7 degrees for the study group and 31.1 degrees for the control group. The average scaphaconchal angle was 132.6 degrees for the study group and 106.7 degrees for the control group. This study presents a new method for evaluating the angles of the ear, confirming that both measured angles (cephaloauricular and scaphaconchal) are greater in patients with prominent ears (p < 0.005).


Subject(s)
Ear, External/surgery , Adolescent , Adult , Anthropometry , Child , Ear, External/abnormalities , Ear, External/anatomy & histology , Female , Humans , Male , Plastic Surgery Procedures/methods
11.
Appl Radiat Isot ; 61(5): 1101-5, 2004 Nov.
Article in English | MEDLINE | ID: mdl-15308199

ABSTRACT

A Phase I/II protocol for treating cutaneuos melanomas with BNCT was designed in Argentina by the Comisión Nacional de Energía Atómica and the medical center Instituto Roffo. The first of a cohort of thirty planned patients was treated on October 9, 2003. This article depicts the protocol-based procedure and describes the first clinical case, treatment regime and planning, patient irradiation, retrospective dosimetric analysis and clinical outcome. Considering the low acute skin toxicity and the complete response in 21 of the 25 subcutaneous melanoma nodules treated, a second irradiation was performed in a different location of the extremity of the same patient. The corresponding clinical outcome is still under evaluation.


Subject(s)
Boron Neutron Capture Therapy , Fructose/analogs & derivatives , Melanoma/radiotherapy , Skin Neoplasms/radiotherapy , Argentina , Boron/blood , Boron/pharmacokinetics , Boron Compounds/pharmacokinetics , Boron Compounds/therapeutic use , Boron Neutron Capture Therapy/methods , Clinical Protocols , Female , Fructose/pharmacokinetics , Fructose/therapeutic use , Humans , Melanoma/metabolism , Melanoma/secondary , Middle Aged , Radiotherapy Planning, Computer-Assisted , Skin Neoplasms/metabolism , Skin Neoplasms/secondary , Treatment Outcome
12.
Med Phys ; 31(1): 70-80, 2004 Jan.
Article in English | MEDLINE | ID: mdl-14761023

ABSTRACT

This article reports on the progress of the modeling and experimental characterization of the RA-6 reactor neutron beam, designed for the upcoming BNCT clinical trials of skin melanoma, and presents the first theoretical analysis of such beam performance. The aspects relating to surface source modeling and assessment, beam dosimetry, treatment planning system calibration, and treatment planning optimization are presented herein. Several methods and criteria were established in order to provide guidance for future clinical studies conducted in this facility. Following a realistic model, the theoretical analysis was based on a clinical case of malignant melanoma in extremities. Owing to the complex geometry of the tumor, this particular clinical case represents one of the most difficult lesions to be treated. This article discusses the thorough evaluation stage that has led to the optimization of the treatment planning procedure. Two candidate plans were proposed, and dose-volume distributions in the target volume were evaluated on the basis of the application of a series of criteria that define the critical normal structures which limit the dose delivered. In spite of the complexity of the clinical case under review, results showed that only 4% of the tumor volume is underdosed in cases of mean blood 10B concentration values, even in the most unfavorable analysis. The overall results suggest that this BNCT facility is prepared to rigorously explore the clinical efficacy of the RA-6 beam and the BNCT treatment modality for peripheral melanomas.


Subject(s)
Boron Neutron Capture Therapy/methods , Fast Neutrons , Melanoma/radiotherapy , Radiotherapy Planning, Computer-Assisted , Skin Neoplasms/radiotherapy , Aged , Clinical Trials as Topic , Female , Humans , Leg/pathology , Radiotherapy Dosage
13.
ACM arq. catarin. med ; 32(supl.1): 173-178, out. 2003. tab
Article in Portuguese | LILACS | ID: lil-517764

ABSTRACT

A abdominoplastia tem-se difundido mundialmente, tanto esteticamente como de forma reparadora, e novas técnicas estão surgindo com o objetivo de minimizar as complicações isquêmicas do retalho e melhorar o contorno corporal. No período de janeiro a julho de 2002, vinte e uma pacientes, do sexo feminino, com idade variando entre 39 e 54 anos, apresentando alteração no abdome do tipo III e IV de BOZOLA, foram submetidas a abdominoplastia associada à lipoaspiração do abdome e flancos e descolamento apenas da porção central para plicatura da diástase muscular de acordo com a técnica de Saldanha(2001). Foi realizado um estudo com doppler fluxometria colo- rida dos vasos epigástricos superiores, inferiores e suas perfurantes músculo cutâneas, no pré-operatório e no décimo quinto dia de pós-operatório, avaliando a vascularização da parede abdominal superior e inferior, contabilizando os ramos perfurantes, calibre e fluxo sangüíneo dos vasos. Este estudo comprovou, através de doppler fluxometria, a preservação dos vasos perfurantes na região periumbilical e hipocôndrio e o aumento do calibre dos vasos em 9 e do fluxo sangüíneo em 56. A manutenção da irrigação sangüínea do retalho foi demonstrada clinicamente, através da boa evolução da cicatriz e ausência de complicações, como necrose da borda do retalho e seroma.


Abdominoplasty surgery has spread universally, both as aesthetic and reconstructive procedures, and new techniques are appearing with the goal of minimizing ischemic complications of the flap and bettering body contour. From January 2002 to July 2002, twenty one female patients, range of 30 to 54 years, presenting abdominal alterations classified as type III and IV of Bozola, were submitted to abdominoplasty combined with abdominal and flank lipossuction and central portion undermining for muscular diastasis plication according to Saldanha’s technique. Eco-doppler fluxometry of the superior and inferior epigastric vessels and of their cutaneous muscular perfurans was done preoperatively and 15 days after the surgery, assessing the superior and inferior abdominal wall circulation, counting the number of perfurans vessels, the diameter and vessels flow. This study showed, through eco-doppler fluxometry, perfurans vessel preservation at the periumbelical and hypocondric areas and enhancement of vessels diameter (9) and vessels flow (56). Blood flow maintenance was demonstrated clinically through the good scar evolution and absence of complications, as flap necrosis and seroma.


Subject(s)
Humans , Female , Adult , Middle Aged , Laser-Doppler Flowmetry
14.
ACM arq. catarin. med ; 32(supl.1): 282-285, out. 2003. ilus
Article in Portuguese | LILACS | ID: lil-517790

ABSTRACT

Descrição de caso de tumor orbital extraconal subperiostal superior, produzindo proptose e desvio caudal do globo ocular, sem interferência nos movimentos oculares, com dezoito meses de evolução, em paciente feminina, com 39 anos de idade. Ausência de alterações ósseas, ao R, TC e RM, demonstrava presença de massa tumoral medindo 3 x 1,5 cm, extraconal, sobre o músculo elevador da pálpebra e sob o periósteo, no segmento orbital superior direito. Cirurgia programada, com sistema de navegação (cirurgia guiada por imagem) com superposição de imagens, de TC e RM. Ressecção completa da lesão, sem comprometimento neurológico ou funcional do globo, e excelente resultado estético.


Subject(s)
Humans , Female , Middle Aged , Decompression, Surgical , Surgery, Computer-Assisted , Surgery, Computer-Assisted/methods , Surgery, Computer-Assisted/standards , Decompression, Surgical/rehabilitation
15.
ACM arq. catarin. med ; 32(supl.1): 53-57, out. 2003. ilus
Article in Portuguese | LILACS | ID: lil-517749

ABSTRACT

A obesidade mórbida é reconhecida atualmente como um grande problema para a saúde. Os tratamentos clínicos desta patologia são falhos quando avaliados a longo prazo. Isto levou os cirurgiões a desenvolverem técnicas que resultam em efeitos restritivos ou malabsortivos à ingestão de alimentos. Após alguns meses da cirurgia bariátrica, existe uma perda de peso maciça resultando em grande flacidez da pele do abdômen, mamas, coxas e braços. Neste estudo avalia-mos a técnica de Correa-Iturraspe para o tratamento da região abdominal em dezessete pacientes que apresentaram grande perda ponderal após cirurgia bariátrica.


Morbid obesity is increasingly recognized as a major health concern. Drug treatments of the morbid obese have entirely failed in the long run. These circumstances have constituted incentives for surgeons to develop techniques resulting in malabsorptive or restrictive effects on food intake. Some months after the bariatric surgery there is a massive weight loss and a great skin laxity mainly at the abdomen, breast, tights and arms. In this study we evaluate the Correa-Iturraspe technique to treat the abdominal region in seventeen patiens with massive weigth loss after bariatric surgery.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Bariatric Surgery , Obesity, Morbid , Surgery, Plastic , Surgery, Plastic/methods , Obesity, Morbid/surgery , Obesity, Morbid/complications
16.
ACM arq. catarin. med ; 32(supl.1): 138-140, out. 2003. tab, graf
Article in Portuguese | LILACS | ID: lil-517755

ABSTRACT

Mastoplastia redutora é um procedimento cirúrgico bastante requisitado por pacientes que apresentam mamas grandes associadas a dores lombres. As grandes hipertrofias impõem técnicas que permitam ressecções associadas ao tratamento da ptose que, na maior parte dos casos, é acentuada. Neste estudo analisamos as técnicas empregadas em 231 casos de mastoplastia redutora, realizados no Serviço de Cirurgia Plástica do Hospital de Clínicas da UFPR no período de 1998 a 2002, das quais 13,8 foram considerados casos de gigantomastia.


Women with big breasts and back pain claim for a reduction mammaplasty. Large volume breast reductions need special atention for the nipple areolar complex migration. In this study we analise the techniques used in 231 reduction mammaplasties performed at “Hospital de Clínicas da Universidade Federal do Parana” from 1998 to 2002. 13,8 of the cases where considered with very large hipertrophies.


Subject(s)
Humans , Female , Breast , Mammaplasty , Breast/anatomy & histology , Breast/abnormalities , Breast/surgery , Breast/physiopathology , Mammaplasty/methods
17.
ACM arq. catarin. med ; 32(supl.1): 141-144, out. 2003. ilus
Article in Portuguese | LILACS | ID: lil-517756

ABSTRACT

A neurofibromatose I é a forma clássica da doença, descrita em 1882, por von Recklinghausen, transmitida por herança autossômica dominante. Caracteriza-se pela presença de manchas café-com-leite, nódulos fibromatosos (neurofibromas), nódulos de Lisch na íris e efélides axilares. S.T.N.C, 30 anos, feminina, procurou o serviço de Cirurgia Plástica do Hospital de Clinicas com deformidade crânio-facial centrada em órbita direita, que evoluiu com aumento progressivo da área comprometida associada a amaurose. Ao exame, observou-se importante deformidade hemicraniofacial direita, com lesão neurofibromatosa comprometendo as regiões da fossa temporal superficial, frontal, órbito-palpebral, jugal, labial e mandibular com aspecto de gota gigante multilobulada, tracionando e deformando todas as estruturas da face. Apresentava, ainda, macroqueilia, mordida aberta, ausência de ramo ascendente mandibular direito e paralisia facial direita. Diversas lesões nodulares café-com-leite disseminadas pela superfície cutânea foram encontradas. Os exames complementares realizados, radiografia de face e crânio, tomografia computadorizada e ressonância magnética crânio-facial, demonstraram continuidade da lesão com o tecido cerebral e grande número de fístulas artério-venosa volumosas, denotando associação com deformidade vascular grave. De acordo com estes resultados, foi decidido não submeter a paciente a tratamento cirúrgico, devido ao potencial risco de óbito, bem como a pouca melhora estético funcional a se conseguir com a operação.


In 1882, Von Recklinghausen described neurofibromatosis type I, an autossomal dominant inherited disease, with clinical features of “cafe-au-lait” spots neurofibromas, freckling in the axillary or inguinal regions, optic glioma, Lisch nodules in iris and distinctive osseous lesions. STNC, a 30 year old female, was attended by Plastic Surgery staff at the “Hospital de Clínicas da Universidade Federal do Paraná - Brazil with a craniofacial deformity centred at the right orbit, with progressive regional increase in size and with impaired of visual acuity. Physical findings: prominent hemicraniofacial deformity due to a neurofibroma involving superficial temporal fossa, frontal, orbital, la- bial, jugal and mandibular regions with the aspect of multilobuleted giant drop, tractioning and deforming all the structure of her face. Macrocheilia, mandibular teeth didn’t touch maxillary teeth, absence of ascendant mandibular ramus, right facial palsy and “cafe-au-lait” spots were documented. Image Findings: facial and cranial x-rays, CT and MRI showed that the lesion compromised in continuity with cerebral tissue and the presence of huge arteriovenous fistulas. Management: Due to high risk of death during and/or after the surgery, the patient received clinical and psychological treatment and orientation.


Subject(s)
Adult , Neurofibromatoses , Neurofibromatosis 1 , Neurofibromatoses/surgery , Neurofibromatoses/complications , Neurofibromatoses/diagnosis , Neurofibromatoses/pathology
18.
ACM arq. catarin. med ; 32(supl.1): 155-158, out. 2003. ilus
Article in Portuguese | LILACS | ID: lil-517760

ABSTRACT

A Microssomia Craniofacial é deformidade com grande variedade de apresentações clínicas. Tratamos 105 casos em 7 anos, entre 1996 a 2002. Os casos foram revisados enfocando as suas alterações anatômicas. A idade de início do tratamento foi entre 0 e 5 anos em 39, 6 a 10 anos em 27,6 e após 10 anos em 33,4. Em 44,8 o lado comprometido foi o direito, o esquerdo em 38 e bilateral em 17,2. O pavilhão auricular era normal em 10; microtia correspondeu a 81 das deformidades auriculares, anotia a 12,6, orelha constricta a 6,3, question ear a 4,2, duplicidade a 4,2 e ausência do lóbulo a 1. Em 65,7 dos pacientes o meato acústico estava ausente e em 2,8 havia atresia. De acordo com a classificação de Pruzanski, foram de 35,2 as alterações mandibulares de Grau I, 21,9 de Grau IIA, 16,1 de Grau IIB e 3,8 de Grau III. Em 22,8 a mandíbula apresentava-se normal. Paralisia facial foi encontrada em 11,4 e macrostomia em 22,8. Em 10 dos pacientes apresentavam alterações oftalmológicas, dentre elas, 3 casos dermóide epibulbar. Em 21,9 foram identificadas outras deformidades faciais, com 5 casos de hipoplasia de partes moles, 9 de fissuras lábiopalatais e 2 de atrofia do masséter.


Hemifacial Microsomia is a deformity with a great variety of clinical feature. We have been treating 105 cases in last 7 years. The revision is focusing over the anatomic disorders. The patients looked for treatment between 0 – 5 y.old in 39, 5 – 10 in 27,6 and after 10 years old in 33,4. In 44,8 of the patients the deformities were at right side and 38 in the left, and in 17,2 was bilateral. Normal ear was seen in 10. In patients with auricular deformities microtia was seen in 81, anotia 12,6, lop and cup ear in 6,3, question ear in 4,2, duplicity in 4,2 and absence of lobulus in 1. In 65,7 of the patients the meatus was absence and 2,8 with atresic meatus. According to classification of Pruzanski, 35,2 of mandibular deformities were grade I, 21,9 grade IIA, 16,1 grade IIB and 3,8 grade III. Mandible was normal in 22,8. Facial palsy was found in 11,4, and macrostomy in 22,8. Around 10 of our patients had ocular deformities, and 3 of them had epibulbar dermoids. Others facial malformation occurred in 21,9, included: soft tissue hipoplasia in 5 cases, cleft lip and/or palate in 9 cases, and masseter atrophy in 2 cases .


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Cleft Lip , Facial Asymmetry , Facial Asymmetry/surgery , Facial Asymmetry/pathology , Cleft Lip/surgery
19.
ACM arq. catarin. med ; 32(supl.1): 159-162, out. 2003. ilus
Article in Portuguese | LILACS | ID: lil-517761

ABSTRACT

Mamaplastia de aumento é cirurgia amplamente realizada em todo o mundo, com tendência atual de redução de cicatrizes. Em casos onde a aréola é grande e não há ptose mamária, pode-se utilizar a via transareolomamilar, com redução da aréola e cicatiz na base do mamilo. Apresentamos o relato de um caso de inclusão de prótese mamária com redução do complexo aréolo-mamilar e cicatriz perimamilarn.


Augmentation mammaplasty is a very common surgery performed around the world. This paper presents a case report where we used a surgical access positioning the scar around the nipple.


Subject(s)
Humans , Female , Middle Aged , Breast Implants , Mammaplasty , Breast Implants , Mammaplasty/methods , Mammaplasty
20.
ACM arq. catarin. med ; 32(supl.1): 166-172, out. 2003. ilus
Article in Portuguese | LILACS | ID: lil-517763

ABSTRACT

Este estudo avaliou 10 pacientes operadas com o objetivo de rejuvenescimento do braço, no período de março a novembro de 2002, no Hospital de Clínicas da Universidade Federal do Paraná. Os pacientes foram divididos em quatro grupos conforme o grau de flacidez e o volume de tecido celular subcutâneo do braço, segundo a classificação de TEIMOURIAN (1998). O tratamento cirúrgico foi individualizado para cada grupo. O primeiro grupo (duas pacientes) apresentava adiposidade moderada e flacidez mínima e foi submetido a lipoaspiração com bons resultados. O segundo grupo, (duas pacientes) apresentava moderada adiposidade e moderada flacidez de pele e optou-se pela realização de lipoaspiração do braço seguido de sutura externa formando uma prega de pele na axila. As pregas axilares evoluíram com resultado estético insatisfatório, necessitando reoperação após 6 meses com ressecção do excesso de pele, além de serem mais dolorosos que os demais grupos. O terceiro grupo (3 pacientes) apresentava flacidez moderada e adiposidade intensa, onde se indicou lipoaspiração seguido de braquioplastia com ressecção pele e fechamento em forma de “T”, obtendo-se bons resultados. O quarto grupo (duas pacientes) apresentava mínima adiposidade e intensa flacidez de pele e foram submetidas a braquioplastia tradicional com ressecção do excesso de pele evoluindo com cicatrizes extensas, porém de boa qualidade.


This study has availed 10 operated patients looking for the arm rejuvenation, in the period from march to november of 2002 in Hosp. das Clínicas da Universidade Federal do Paraná. The patients were divided in four groups according to the flaccid level and to the arm loose tissue volume, due to the TEIMOURIAN classification (1998).The surgical approach was individualized for each group. The first group(two patients) presented moderate adiposity and a few flaccid and underwent to liposuction with good results. The second group(two patients) presented mild adiposity and skin limpness, and decided a arm liposuction followed by a extern suture forming a skin ridge in the axilla. The axillary rigde developed with unsatisfactory. The third group (two patients) consists of patients who have excess fat and a fair amount of loose skin, decided a liposuction followed by a resected skin defect with the T excision with good results. The fourth group (two patients) consist of patients who skin laxity and depletion of subcutaneous fat making brachioplasty the procedure of choice, with extensive scars and visible, but tolerate.


Subject(s)
Humans , Female , Arm , Lipectomy , Arm/anatomy & histology , Arm/abnormalities , Arm/surgery
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