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1.
Rev. esp. investig. quir ; 15(3): 127-136, jul.-sept. 2012. ilus, tab
Article in Spanish | IBECS | ID: ibc-105407

ABSTRACT

OBJETIVOS. Presentar las peculiaridades clínico-quirúrgicas de los adenomas ectópicos de paratiroides relacionándolas con las de los adenomas normotópicos. Determinar el valor de las pruebas diagnósticas para asegurar el éxito terapéutico. MATERIAL Y MÉTODOS. Estudio prospectivo de 158 pacientes intervenidos por hiperparatiroidismo primario (1998-2010). 83% mujeres. Edad media 62,8 años±13,7. Para el diagnóstico topográfico se usaron la gammagrafía con Tecnecio-sestaMIBI, ECO y TAC (ocasional) y para asegurar la exéresis quirúrgica, la monitorización intraoperatoria de PTH y, eventualmente en los ectópicos, la cirugía radioguiada. Se seleccionaron 15 pacientes (80% mujeres) con adenomas ectópicos y se compararon con 143 adenomas ortotópicos. Se evaluaron: sexo, edad, localización, clínica, diagnóstico bioquímico y topográfico, peso glandular, vías de abordaje quirúrgico, gradientes de descenso de PTH en la monitorización y resultados postoperatorios. Para la comparación de medias se utilizó la U de Mann-Whitney y para las variables cualitativas el test de Fisher aceptando valores de p≤0,05. RESULTADOS. Fueron ectópicos el 9,5% de los adenomas. 86,7% en paratiroides inferiores (4 mediastínicas) y 13,3% en superiores. La ectopia no modificó el comportamiento clínico de los adenomas (ambas series fueron similares). La sensibilidad diagnóstica de la gammagrafía, en los ectópicos, fue 100% y para los normotópicos 80,5%. La TAC alcanzó el 66,7%, en los ectópicos, y 48,6% en los normotópicos y la Ecografía el 36,4% y 54%, respectivamente. En el grupo de adenomas ectópicos se utilizó la cervicotomía bilateral en 12 pacientes (80%), el abordaje selectivo en 3 y la sonda radioisotópica en 4. Las glándulas ectópicas extirpadas fueron adenomas. En el grupo normotópico se eligió el abordaje selectivo en el 55%. La comparación de grupos no mostró diferencias de los parámetros evaluados, salvo en la localización de los adenomas, mayor en las paratiroides inferiores (86,7% vs 68%) (p<0,05), en la sensibilidad de la gammagrafía con MIBI, también mayor (100% vs 80,5%) (p<0,001) en el grupo de los ectópicos, y en el tipo de abordaje quirúrgico CONCLUSIONES: 1. Los adenomas ectópicos constituyeron el 9,5% y fueron más frecuentes en las glándulas inferiores (86,4%). 2. No hubo diferencias clínicas entre los ectópicos y normotópicos. 3. La gammagrafía fue la prueba más sensible (100%) para detectarlos (AU)


OBJECTIVES. To present the clinical-surgical peculiarities of ectopic parathyroid adenomas, comparing them to those of the normotopic adenomas. To determine the value of the diagnostic tests in ensuring therapeutic success. MATERIAL AND METHODS. Prospective study of 158 patients operated on for primary hyperparathyroidism (1998-2010), in which 83% were women, average age 62.8 years±13.7. For the topographic diagnostic, the gammagraph was used with Tecnecio-sestamibi, ultrasound and CAT (occasional) and to ensure the surgical exeresis, the intraoperative monitoring of PTH and, possible radio-guided surgery in the ectopic adenomas. Fifteen patients were selected (80% women) with ectopic adenomas and they were compared with 143 orthotopic adenomas. The following were evaluated: Gender, age, location, clinical symptoms, biochemical diagnosis, and topography, glandular weight, channels for surgical approach, degrees of decrease of PTH in the monitoring and postoperative results. For the comparison of means, the U of Mann-Whitney was used and the Fisher test was used for the qualitative variable, accepting values of p≤0.05. RESULT. Of the adenomas, 9.5% were found to be ectopic; 86.7% in inferior parathyroids (4 mediastinal) and 13.3% in superior parathyroids. The ectopia did not change the clinical behaviour of the adenomas (both series were similar). The diagnostic sensitivity of the gammagraphy, in the ectopic adenomas, was 100% and for the normotopic 80.5%. The CAT achieved 66.7% in the ectopic and 48.6% in the normotopic; and the ultrasound achieved 36.4% and 54%, respectively. In the group of ectopic adenomas, the bilateral cervicotomy was used on 12 patients (80%), the selective approach on 3 and the radioisotopic probe on 4. The removed ectopic glands were adenomas. In the normotopic group, the selective approach was chosen in 55%. The comparison of the groups did not show differences of the evaluated parameters, except in the location of the adenomas, greater in the inferior parathyroids (86.7% vs. 68%) (p<0.05), in the sensitivity of the gammagraph with MIBI also greater (100% vs. 80.5%) (p<0.001) in the group of ectopic adenomas, and in the type of surgical approach. CONCLUSIONS: 1. The ectopic adenomas constituted 9.5%. More frequent in the inferior glands (86.4%). 2. There were no clinical differences between the ectopic and normotopic adenomas. 3. The gammagraph was the most sensitive test (100%) for detecting them (AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Hyperparathyroidism/diagnosis , Adenoma/diagnosis , Sensitivity and Specificity , Technetium Tc 99m Sestamibi , /methods , Tomography, X-Ray Computed/methods , Ultrasonography/methods
2.
Rev. calid. asist ; 27(3): 161-168, mayo-jun. 2012.
Article in Spanish | IBECS | ID: ibc-100293

ABSTRACT

Objetivos. 1) Presentar la morbilidad postoperatoria de las tiroidectomías totales y los resultados de su gestión clínica y costes obtenidos tras la cirugía. 2) Tras los cambios de gestión introducidos por la Unidad de Cirugía Endocrina (UCE), comparar en el Proceso de la tiroidectomía total, los resultados obtenidos en cuanto a morbilidad y costes. 3) Establecer si estos cambios mejoran el Valor del Proceso (relación beneficio/coste). Material y métodos. Estudio prospectivo de cohortes realizado en 529 tiroidectomías totales efectuadas entre 1998 y 2011. Presentamos sus características clinicopatológicas y comparamos los resultados clínicos y de gestión obtenidos tras la cirugía en 2 períodos de tiempo, 1998-2006 sin UCE (grupo 1, de 205 pacientes), y 2007-2011 con UCE (grupo 2, de 324 pacientes). Los resultados clínicos y el posible beneficio se valoraron mediante el estudio de la morbimortalidad (lesiones recurrenciales, hipocalcemia [<8 mgrs/dl], hematomas sofocantes y sangrado) y los de gestión por la valoración del tiempo de utilización de quirófano, de la estancia media y del coste total del Proceso. El estudio estadístico de comparación se hizo mediante la t de Student, para la comparación de medias y la Chi2 para comparar porcentajes aceptando como significativo p<0,05. Resultados. El porcentaje global de disfunciones recurrenciales transitorias (DRT) fue 6%. El de parálisis recurrenciales definitivas (PRD) de 1,5%. El de hipocalcemias, a las 24 horas, de 54,6%, al mes de 7%, a los 6 meses de 6,2% y el de hipoparatiroidismo definitivo de 1,3%. Se registraron 2,8% de hematomas sofocantes y 2% de secuelas. El tiempo quirúrgico medio fue de 98 minutos y la estancia media de 3,66 días. En la comparación de resultados de grupos, la UCE mejoró el índice de DRT en casi 7 puntos (10,2 vs 3,4%; p=0,002), el de PRD en 1,5 (2,4 vs 0,4%; p=0,3) hasta situarse por debajo del 1%, las cifras de sangrado a las 24 horas (53 vs 44 cc; p=0,002) y 48 horas (23 a 17 cc; p<0,001), la tasa de hematomas en otros 6 puntos (6,3 vs 0,6%; p<0,001), y la de hipocalcemias a las 24 horas (p=0,01). También mejoró la estancia media (4,79 vs 2,94 días; p<0,001), el tiempo de utilización de quirófanos (rebajado en 20 minutos/intervención; p<0,001), el coste total del Proceso, disminuyéndolo en más de 2.000€/Proceso (p<0,001), y produjo un ahorro total para el hospital, en el período de estudio, de 665.820€. Conclusiones. 1) Los resultados globales (morbilidad postoperatoria) de nuestras tiroidectomías totales se mantienen dentro de los estándares de calidad. 2) La especialización quirúrgica y los cambios introducidos por la UCE mejoraron los resultados clínicos (mayor beneficio) y los de gestión, acortando la estancia media, el tiempo de utilización del quirófano y disminuyendo los costes. 3) El cambio de gestión incrementó el Valor del Proceso(AU)


Objectives. 1) To present the postoperative morbidity of complete thyroidectomies and the results of their clinical management and costs obtained after surgery. 2) To compare the results obtained for the morbidity and costs in the complete thyroidectomy Process, after the management changes introduced by the Endocrine Surgical Unit (ESU). 3) To define whether these changes improve the Value (benefit/cost ratio) of the Process. Material and methods. Prospective study of cohorts conducted on 529 complete thyroidectomies performed between 1998 and 2011. We present their clinical-pathological characteristics and we compare the clinical and management results obtained after surgery in 2 time periods: 1998-2006 without ESU (group 1, 205 patients) and 2007-2011 with ESU (group 2, 324 patients). The clinical results and the possible benefits are assessed by studying the morbimortality (recurrent lesions, hypocalcaemia [<8mg/dl], suffocative haematomas and bleeding), and those of management, for the evaluation of the use of operating room time, the average stay and the total cost of the Process. The statistical comparison study was made using Student t test, for the comparison of means and the Chi2 to compare percentages, accepting P<.05 as significant. Results. The global percentage of transient recurrent dysfunctions (TRD) was 6%, and for definitive recurrent paralysis (DRP) it was 1.5%. Hypocalcaemia, at 24hours was 54.6%, at one month 7%, at six months 6.2% and that of definitive hypoparathyroidism 1.3%. There were 2.8% of suffocative haematomas and 2% adverse effects. The mean surgical time was 98minutes, and the average stay was 3.66 days. In the comparison of results of the groups, the ESU improved the TRD index by nearly 7 points (10.2 vs. 3.4%, P=.002), that of DRP by 1.5 (2.4 vs. 0.4%; P=.3) until reaching under 1%. The figures on bleeding at 24hours (53 vs. 44 cc; P=.002) and 48hours (23 to 17 cc; P<.001), the rate of haematomas by another 6 points (6.3 vs. 0.6%; P<.001), and that of hypocalcaemia at 24hours (P=.01). The average stay also improved (4.79 vs. 2.94 days; P<.001), the use of operating room time (reduced by 20minutes/operation; P<.001), the total cost of the Process, decreasing by more than € 2,000/Process (P<.001), and produced a total savings for the hospital in the period of study of € 665,820. Conclusions. 1) The global results (post-operative morbidity) of our total thyroidectomies are within the quality standards. 2) The surgical specialisation and the changes introduced by the ESU improved the clinical results (greater benefit) and those of management, cutting down the average stay and the operating room usage time and decreasing costs. 3) The change in management increased the Value of the Process(AU)


Subject(s)
Humans , Male , Female , Thyroidectomy/methods , Thyroidectomy/statistics & numerical data , Costs and Cost Analysis/methods , Costs and Cost Analysis/standards , /standards , Patient Care Management/economics , Patient Care Management/organization & administration , Patient Care Management/standards , Morbidity Surveys , Morbidity/trends , Thyroidectomy/economics , Practice Management, Medical/organization & administration , Practice Management, Medical/standards
3.
Rev Calid Asist ; 27(3): 161-8, 2012.
Article in Spanish | MEDLINE | ID: mdl-22137200

ABSTRACT

OBJECTIVES: 1) To present the postoperative morbidity of complete thyroidectomies and the results of their clinical management and costs obtained after surgery. 2) To compare the results obtained for the morbidity and costs in the complete thyroidectomy Process, after the management changes introduced by the Endocrine Surgical Unit (ESU). 3) To define whether these changes improve the Value (benefit/cost ratio) of the Process. MATERIAL AND METHODS: Prospective study of cohorts conducted on 529 complete thyroidectomies performed between 1998 and 2011. We present their clinical-pathological characteristics and we compare the clinical and management results obtained after surgery in 2 time periods: 1998-2006 without ESU (group 1, 205 patients) and 2007-2011 with ESU (group 2, 324 patients). The clinical results and the possible benefits are assessed by studying the morbimortality (recurrent lesions, hypocalcaemia [<8 mg/dl], suffocative haematomas and bleeding), and those of management, for the evaluation of the use of operating room time, the average stay and the total cost of the Process. The statistical comparison study was made using Student t test, for the comparison of means and the Chi(2) to compare percentages, accepting P<.05 as significant. RESULTS: The global percentage of transient recurrent dysfunctions (TRD) was 6%, and for definitive recurrent paralysis (DRP) it was 1.5%. Hypocalcaemia, at 24 hours was 54.6%, at one month 7%, at six months 6.2% and that of definitive hypoparathyroidism 1.3%. There were 2.8% of suffocative haematomas and 2% adverse effects. The mean surgical time was 98 minutes, and the average stay was 3.66 days. In the comparison of results of the groups, the ESU improved the TRD index by nearly 7 points (10.2 vs. 3.4%, P=.002), that of DRP by 1.5 (2.4 vs. 0.4%; P=.3) until reaching under 1%. The figures on bleeding at 24 hours (53 vs. 44 cc; P=.002) and 48 hours (23 to 17 cc; P<.001), the rate of haematomas by another 6 points (6.3 vs. 0.6%; P<.001), and that of hypocalcaemia at 24 hours (P=.01). The average stay also improved (4.79 vs. 2.94 days; P<.001), the use of operating room time (reduced by 20 minutes/operation; P<.001), the total cost of the Process, decreasing by more than € 2,000/Process (P<.001), and produced a total savings for the hospital in the period of study of € 665,820. CONCLUSIONS: 1) The global results (post-operative morbidity) of our total thyroidectomies are within the quality standards. 2) The surgical specialisation and the changes introduced by the ESU improved the clinical results (greater benefit) and those of management, cutting down the average stay and the operating room usage time and decreasing costs. 3) The change in management increased the Value of the Process.


Subject(s)
Thyroidectomy/adverse effects , Thyroidectomy/economics , Adolescent , Adult , Aged , Aged, 80 and over , Child , Cost-Benefit Analysis , Female , Humans , Male , Middle Aged , Postoperative Complications/epidemiology , Postoperative Complications/etiology , Postoperative Complications/therapy , Thyroidectomy/methods , Young Adult
4.
Rev. esp. investig. quir ; 14(3): 147-152, jul.-sept. 2011. tab
Article in Spanish | IBECS | ID: ibc-97992

ABSTRACT

OBJETIVOS. Presentar la morbilidad de nuestra cirugía tiroidea, relacionándola con el diagnóstico clínico, tipo de cirugía y, cuando se realiza, la “disección central”. MATERIAL Y MÉTODO. Estudio prospectivo de cohortes (1.998-2.010). 772 pacientes tratados mediante tiroidectomías, 266 lobectomías, 444 tiroidectomías totales simples y 62 con “disección central”. Describimos sus características clínicopatológicas y morbilidad postoperatoria (lesiones recurrenciales, hipocalcemia <8 mgrs/dl y hematomas sofocantes) relacionándola con el diagnóstico clínico y tipo de cirugía efectuada. Comparación estadística mediante mediante la Chi2 (p<0,05). RESULTADOS. El porcentaje de disfunciones recurrenciales transitorias (DRT) fue 7,6%. El de parálisis recurrenciales definitivas (PRD) de 1,42%. El de hipocalcemias, a las 24 horas, de 57,7%, al mes de 10,8%, a los seis meses de 6,85% y el de hipoparatiroidismo definitivo de 0,5%. Hubo 2,9% de hematomas sofocantes y 2% de secuelas. La afectación recurrencial y la hipocalcemia fueron mayores en la E. Basedow y los carcinomas que en el BMN y nódulos solitarios (p<0,001). Hubo también diferencias en la incidencia de DRT y de hipocalcemias, mayor en las tiroidectomías totales con “disección central” que en las totales simples, y en estas que en las parciales (p<0,001), pero no en la de PRD y secuelas. CONCLUSIONES. 1. La cirugía de los carcinomas y E. Basedow aumenta la morbilidad postoperatoria. 2. La “disección central” asociada a tiroidectomía total produce más morbilidad que las totales simples y ambas más que las parciales. 3. La indicación de realizar la “disección central” profiláctica debería adecuarse a cada paciente valorando el riesgo-beneficio (AU)


OBJECTIVES. To present the morbidity of our thyroid surgery, relating it to the clinical diagnosis, type of surgery and, when itis done, the "central dissection". MATERIALS AND METHOD. Prospective study of cohorts (1998-2010), conducted on 772 patients treated by thyroidectomies, 266 lobectomies, 444 simple total thyroidectomies and 62 with "central dissection". We describe their clinicopathological characteristics and postoperative morbidity (recurrent lesions, hypocalcemia <8 mgrs/dl and suffocating hematomas) relating them to the clinical diagnosis and type of surgery performed. Statistical comparison by means of Chi2 (p<0.05). RESULTS. The percentage of transient recurrent dysfunctions (TRD) was 7.6%. That of definitive recurrent paralysis (DRP) was 1.42%. That of hypocalcemia, at 24 hours, was 57.7%, at one month 10.8%, at six months 6.85% and that of definitive hypoparathyroidism was 0.5%. There were 2.9% of suffocating hematomas and 2% of sequelae. he recurrent affection and hypocalcemia were greater in Grave's Disease and in carcinomas than in the MNG and solitary nodules (p<0.001). There were also differences in the incidence of TRD and of hypocalcemia, greater in the total thyroidectomies with "central dissection" than in the simple total thyroidectomies, and greater in these than in the partial (p<0,001), but not in the DRP and sequelae (AU)


Subject(s)
Humans , Thyroidectomy/adverse effects , Trauma, Nervous System/epidemiology , Thyroid Neoplasms/surgery , Postoperative Complications/epidemiology , Prospective Studies , Hypocalcemia/epidemiology , Hematoma/epidemiology , Hypoparathyroidism/epidemiology
5.
Cir. Esp. (Ed. impr.) ; 80(6): 378-384, dic. 2006. ilus, tab
Article in Es | IBECS | ID: ibc-049479

ABSTRACT

Objetivos. a) Valorar la sensibilidad de la gammagrafía con MIBI; b) comparar su resolutividad con la ecografía (ECO) y la tomografía computarizada (TC), y c) definir, a partir de su fiabilidad diagnóstica, si pueden efectuarse abordajes selectivos en el tratamiento del hiperparatiroidismo (HPT). Pacientes y método. Estudio realizado en 76 pacientes operados por HPT entre 1996 y 2005. En el diagnóstico topográfico se utilizaron la gammagrafía con 99Tc-sestamibi (MIBI) y la ECO cervical, en todos los pacientes, y la TC en 47 casos. La validación final de las pruebas, tras la visualización y la exéresis quirúrgica, se hizo por biopsias intra y postoperatoria. Resultados. La gammagrafía fue informada como positiva en 65 pacientes (85,52%). En todas las imágenes solitarias el diagnóstico fue correcto. Las imágenes múltiples se debieron a hiperplasias y adenomas paratiroideos asociados con enfermedad tiroidea (5,2%). Tres imágenes, informadas incorrectamente como negativas (3,94%), eran positivas. La sensibilidad de la ECO fue del 63% y permitió detectar 3 adenomas (4%), MIBI negativos. La TC fue menos sensible (55%), aunque descubrió otros 3 adenomas (4%), MIBI negativos. Conclusiones. a) La sensibilidad del MIBI alcanzó el 89,46%. En ausencia de nódulos tiroideos fue diagnóstica en el 100% de las lesiones únicas. Procesos patológicos tiroideos produjeron falsos positivos (5,2%) y hubo errores de interpretación (4%); b) la gammagrafía con MIBI fue más sensible que la ECO y la TC, y c) la imagen gammagráfica positiva y solitaria permite el abordaje cervical selectivo, y la ECO y la TC pueden ayudar a rescatar otro 8% de pacientes (con gammagrafía negativa) (AU)


Objectives. 1. To assess the sensitivity of scintigraphy using methoxy isobutyl isonitrile (MIBI). 2. To compare its resolution with that of ultrasound (US) and computerized axial tomography (CAT). 3. To use its diagnostic reliability to determine whether selective approaches can be used to treat hyperparathyroidism (HPT). Patients and method. A study of 76 patients who underwent surgery for HPT between 1996 and 2005 was performed. MIBI scintigraphy and cervical US were used for whole-body scanning in all patients; CAT was used in 47 patients. Intraoperative and postoperative biopsies were used for final evaluation of the tests, after visualization and surgical extirpation. Results. The results of scintigraphy were positive in 65 patients (85.52%). The diagnosis was correct in all of the single images. Multiple images were due to hyperplasia and parathyroid adenomas with thyroid disease (5.2%). Three images, incorrectly classified as negative (3.94%), were positive. The sensitivity of US was 63% and allowed detection of three MIBI-negative adenomas (4%). CAT was less sensitive (55%), but detected a further three MIBI-negative adenomas (4%). Conclusions. 1. The sensitivity of MIBI reached 89.46%. In the absence of thyroid nodules, MIBI diagnosed 100% of single lesions. Pathological thyroid processes produced false-positive results (5.2%) and there were diagnostic errors (4%). 2. MIBI scintigraphy was more sensitive than US and CAT. 3. Positive, single image scintigraphy allows a selective cervical approach. US and CAT may help to save a further 8% of patients (with negative scintigraphy)


Subject(s)
Male , Female , Adult , Aged , Middle Aged , Humans , Hyperparathyroidism/diagnosis , Parathyroidectomy , Tomography, X-Ray Computed , Technetium Tc 99m Sestamibi , Ultrasonography , Spectrometry, Gamma , Preoperative Care , Hypercalcemia/diagnosis , Parathyroid Hormone/analysis , Retrospective Studies
7.
Cir Esp ; 79(2): 114-9, 2006 Feb.
Article in Spanish | MEDLINE | ID: mdl-16539950

ABSTRACT

INTRODUCTION: The objectives of this study were: a) to evaluate the effectiveness of intraoperative intact parathyroid hormone (PTHi) determination as a marker of hyperparathyroidism resolution; b) to establish the minimum number of blood samples required; and c) to determine whether cervical manipulation increases baseline PTHi levels. PATIENTS AND METHOD: We performed a prospective study in 45 patients. Three intraoperative blood PTHi determinations were performed: at baseline and at 10 and 25 minutes after excising the lesion. To analyze the effects of cervical manipulation, in 19 patients, 2 further determinations were made after 2 minutes of massage on both sides of the neck. A decrease of > 50% in PTHi values between postexeresis samples and the baseline sample (gradient > 50%) was used as diagnostic and therapeutic criteria and normalization of calcemia was used as a criteria for complete resolution. RESULTS: Whenever the lesion causing hyperparathyroidism was extirpated, PTHi levels decreased at 10 and 25 minutes after exeresis. This decrease was predictive of complete resolution when the gradient was > 50. Cervical manipulation (massage) did not increase PTHi values. In patients with complete resolution, blood calcium levels also returned to normal. CONCLUSIONS: 1. Intraoperative PTHi determination with a gradient > 50 is an excellent prognostic marker of resolution. 2. Only 2 PTHi samples are required: one at baseline and another at 10 minutes after exeresis. 3. Preoperative cervical manipulation does not increase PTHi values.


Subject(s)
Hyperparathyroidism/blood , Hyperparathyroidism/surgery , Parathyroid Hormone/blood , Adult , Female , Humans , Intraoperative Care , Male , Middle Aged , Prospective Studies , Treatment Outcome
8.
Cir. Esp. (Ed. impr.) ; 79(2): 114-119, feb. 2006. ilus, tab
Article in Es | IBECS | ID: ibc-042442

ABSTRACT

Introducción. Nuestros objetivos son valorar la eficacia de la determinación peroperatoria de la hormona paratiroidea intacta (PTHi) como marcador de curación del hiperparatiroidismo (HPT), establecer el número mínimo de muestras sanguíneas necesarias y comprobar si la manipulación cervical eleva la PTHi basal. Pacientes y método. Estudio prospectivo realizado con 45 pacientes. Peroperatoriamente se hicieron 3 determinaciones sanguíneas de PTHi: basal y a los 10 y 25 min de extirpar la lesión. Para analizar los efectos de la manipulación cervical, en 19 pacientes, se hicieron otras 2 determinaciones tras 2 min de masaje en ambos lados del cuello. Se aceptó como criterio diagnóstico y terapéutico el descenso > 50% del valor de PTHi entre las muestras postexeréticas y la basal (gradiente > 50) y como criterio de curación la normalización de la calcemia. Resultados. Siempre que se extirpó la causa del HPT hubo descensos de PTHi a los 10 y 25 min de la exéresis. Este descenso tuvo valor predictivo de curación cuando el gradiente fue > 50. La manipulación cervical (masaje) no produjo elevación de la cifra de PTHi. En los casos curados, también se normalizaron las cifras de la calcemia. Conclusiones. La determinación intraoperatoria de PTHi, con gradiente > 50, es un excelente indicador de curación. Sólo se precisan 2 muestras de PTHi: la basal y la extraída a los 10 min de la exéresis. La manipulación cervical preoperatoria no produjo elevación de los valores de PTHi (AU)


Introduction. The objectives of this study were: a) to evaluate the effectiveness of intraoperative intact parathyroid hormone (PTHi) determination as a marker of hyperparathyroidism resolution; b) to establish the minimum number of blood samples required; and c) to determine whether cervical manipulation increases baseline PTHi levels. Patients and method. We performed a prospective study in 45 patients. Three intraoperative blood PTHi determinations were performed: at baseline and at 10 and 25 minutes after excising the lesion. To analyze the effects of cervical manipulation, in 19 patients, 2 further determinations were made after 2 minutes of massage on both sides of the neck. A decrease of > 50% in PTHi values between postexeresis samples and the baseline sample (gradient > 50%) was used as diagnostic and therapeutic criteria and normalization of calcemia was used as a criteria for complete resolution. Results. Whenever the lesion causing hyperparathyroidism was extirpated, PTHi levels decreased at 10 and 25 minutes after exeresis. This decrease was predictive of complete resolution when the gradient was > 50. Cervical manipulation (massage) did not increase PTHi values. In patients with complete resolution, blood calcium levels also returned to normal. Conclusions. 1. Intraoperative PTHi determination with a gradient > 50 is an excellent prognostic marker of resolution. 2. Only 2 PTHi samples are required: one at baseline and another at 10 minutes after exeresis. 3. Preoperative cervical manipulation does not increase PTHi values (AU)


Subject(s)
Male , Female , Adult , Middle Aged , Humans , Parathyroid Hormone/analysis , Hyperparathyroidism/surgery , Prospective Studies , Treatment Outcome , Calcium/blood , Phosphorus/blood
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