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1.
Anaesthesia ; 79(6): 593-602, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38353045

RESUMEN

Cancellations within 24 h of planned elective surgical procedures reduce operating theatre efficiency, add unnecessary costs and negatively affect patient experience. We implemented a bundle intervention that aimed to reduce same-day case cancellations. This consisted of communication tools to improve patient engagement and new screening instruments (automated estimation of ASA physical status and case cancellation risk score plus four screening questions) to identify patients in advance (ideally before case booking) who needed comprehensive pre-operative risk stratification. We studied patients scheduled for ambulatory surgery with the otorhinolaryngology service at a single centre from April 2021 to December 2022. Multivariable logistic regression and interrupted time-series analyses were used to analyse the effects of this intervention on case cancellations within 24 h and costs. We analysed 1548 consecutive scheduled cases. Cancellation within 24 h occurred in 114 of 929 (12.3%) cases pre-intervention and 52 of 619 (8.4%) cases post-intervention. The cancellation rate decreased by 2.7% (95%CI 1.6-3.7%, p < 0.01) during the first month, followed by a monthly decrease of 0.2% (95%CI 0.1-0.4%, p < 0.01). This resulted in an estimated $150,200 (£118,755; €138,370) or 35.3% cost saving (p < 0.01). Median (IQR [range]) number of days between case scheduling and day of surgery decreased from 34 (21-61 [0-288]) pre-intervention to 31 (20-51 [1-250]) post-intervention (p < 0.01). Patient engagement via the electronic health record patient portal or text messaging increased from 75.9% at baseline to 90.8% (p < 0.01) post-intervention. The primary reason for case cancellation was patients' missed appointment on the day of surgery, which decreased from 7.2% pre-intervention to 4.5% post-intervention (p = 0.03). An anaesthetist-driven, clinical informatics-based bundle intervention decreases same-day case cancellation rate and associated costs in patients scheduled for ambulatory otorhinolaryngology surgery.


Asunto(s)
Procedimientos Quirúrgicos Ambulatorios , Citas y Horarios , Procedimientos Quirúrgicos Otorrinolaringológicos , Humanos , Procedimientos Quirúrgicos Ambulatorios/economía , Masculino , Persona de Mediana Edad , Femenino , Adulto , Anciano , Procedimientos Quirúrgicos Otorrinolaringológicos/economía , Paquetes de Atención al Paciente/economía , Paquetes de Atención al Paciente/métodos , Procedimientos Quirúrgicos Electivos/economía , Análisis de Series de Tiempo Interrumpido
2.
Neurosci Lett ; 806: 137250, 2023 05 29.
Artículo en Inglés | MEDLINE | ID: mdl-37061024

RESUMEN

INTRODUCTION: This study aims to evaluate the effects of medication, and the freezing of gait (FoG) on the kinematic and kinetic parameters of gait in people with Parkinson's disease (pwPD) compared to neurologically healthy. METHODS: Twenty-two people with a clinical diagnosis of idiopathic PD in ON and OFF medication (11 FoG), and 18 healthy participants (control) were selected from two open data sets. All participants walked on the floor on a 10-meter-long walkway. The joint kinematic and ground reaction forces (GRF) variables of gait and the clinical characteristics were compared: (1) PD with FoG (pwFoG) and PD without FoG (pwoFoG) in the ON condition and control; (2) PD with FoG and PD without FoG in the OFF condition and control; (3) Group (PD with FoG and PD without FoG) and Medication. RESULTS: (1) FoG mainly affects distal joints, such as the ankle and knee; (2) PD ON showed changes in the range of motion of both distal and proximal joints, which may explain the increase in step length and gait speed expected with the use of L-Dopa; and (3) the medication showed improvements in the kinematic and kinetic parameters of the gait of people with pwFoG and pwoFoG equally; (4) pwPD showed a smaller second peak of the vertical component of the GRF than the control. CONCLUSION: The presence of FoG mainly affects distal joints, such as the ankle and knee. PD presents a lower application of GRF during the impulse period than healthy people, causing lower gait performances.


Asunto(s)
Trastornos Neurológicos de la Marcha , Enfermedad de Parkinson , Humanos , Enfermedad de Parkinson/complicaciones , Enfermedad de Parkinson/tratamiento farmacológico , Enfermedad de Parkinson/diagnóstico , Fenómenos Biomecánicos , Trastornos Neurológicos de la Marcha/tratamiento farmacológico , Trastornos Neurológicos de la Marcha/etiología , Marcha , Dopaminérgicos/uso terapéutico , Extremidad Inferior
3.
Acta Chir Belg ; 113(3): 233-7, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24941724

RESUMEN

Commonly, small bowel obstruction (SBO) is caused by either postoperative adhesions or external hernias. Internal hernias are rare, accounting for less than 2% of all cases of intestinal obstruction. An internal hernia through the falciform ligament is extremely uncommon and is usually secondary to a congenital or iatrogenic defect caused by trocars insertion. In this article, we report a case of SBO in a virgin abdomen that appeared to be caused by a congenital defect in the falciform ligament. A search of the literature was done identifying all reported cases of internal hernias caused by falciform ligament defect in order to guide diagnosis and management as well as avoidance of hernias caused by iatrogenic defects.


Asunto(s)
Hernia Abdominal/etiología , Obstrucción Intestinal/etiología , Ligamentos/anomalías , Abdomen Agudo/etiología , Abdomen Agudo/cirugía , Humanos , Obstrucción Intestinal/complicaciones , Obstrucción Intestinal/diagnóstico , Obstrucción Intestinal/cirugía , Masculino , Persona de Mediana Edad , Tomografía Computarizada por Rayos X
4.
Bone Marrow Transplant ; 23(6): 599-605, 1999 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-10217191

RESUMEN

A retrospective analysis was performed on 100 patients with non-Hodgkin's lymphoma (NHL, n = 75) or Hodgkin's disease (HD, n = 25) who underwent peripheral blood progenitor cell transplant (PBPCT) following high-dose chemotherapy (HDCT) with BCNU, etoposide, cytarabine and melphalan (BEAM) between March 1994 and June 1997. Following PBPCT and until engraftment all patients received oral ciprofloxacin and fluconazole, patients with positive Herpes simplex virus serology received acyclovir and 91 patients received filgrastim. The median days of neutropenia and days to an absolute neutrophil count (ANC) >500/mm3 were 6 and 9, respectively. Febrile neutropenia occurred in 68 patients. Gram-positive bacteremia occurred in 14 patients. No gram-negative infections, invasive fungal infections, intensive care visits or deaths occurred during the period of neutropenia or in the first 30 days following transplant. In multivariate logistic regression the risk of development of any infection was associated only with the duration of neutropenia (P = 0.02) and the risk of bacteremia was associated only with the number of CD34+ cells infused (P = 0.046). Among 49 patients treated in the outpatient setting, 14 (28%) were never admitted. High-dose chemotherapy with BEAM supported by PBPCT, prophylactic antibiotics and filgrastim resulted in a low incidence of infections and no acute mortality. WBC engraftment occurred rapidly allowing for a predictable course during which lengthy hospital stays and amphotericin therapy could be avoided.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Trasplante de Células Madre Hematopoyéticas , Enfermedad de Hodgkin/terapia , Linfoma no Hodgkin/terapia , Neutropenia/etiología , Adulto , Atención Ambulatoria , Profilaxis Antibiótica , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Carmustina/administración & dosificación , Carmustina/efectos adversos , Citarabina/administración & dosificación , Citarabina/efectos adversos , Relación Dosis-Respuesta a Droga , Enfermedad de Hodgkin/tratamiento farmacológico , Humanos , Linfoma no Hodgkin/tratamiento farmacológico , Melfalán/administración & dosificación , Melfalán/efectos adversos , Persona de Mediana Edad , Neutropenia/prevención & control , Podofilotoxina/administración & dosificación , Podofilotoxina/efectos adversos , Estudios Retrospectivos
5.
Cancer Invest ; 17(3): 171-80, 1999.
Artículo en Inglés | MEDLINE | ID: mdl-10099655

RESUMEN

We evaluated the long-term effects of combined modality therapy (CMT) with adriamycin, bleomycin, vinblastine, dacarbazine (ABVD) or mechlorethamine, vincristine, prednisone, procarbazine (MOPP)/ABVD plus adjuvant low-dose (< 30 Gy) involved-field radiation therapy (LDRT) on cardiac and pulmonary functions in adult patients with Hodgkin's disease (HD). Adjuvant LDRT (mean dose, 2340 cGy) to the mediastinum was administered to 24 patients after chemotherapy with MOPP/ABVD (n = 10) and ABVD (n = 14). The mean doses of doxorubicin and bleomycin were 233 mg/m2 and 92 IU/m2, respectively. Cardiac and pulmonary function tests were performed in all patients and, when available, were compared with pretreatment studies. After a median follow-up of 6.3 years, none of the patients had cardiac or pulmonary symptoms. A 4.7% overall decrease in left ventricular ejection fraction (LVEF) was observed (p = 0.03), but only one patient had a mildly decreased LVEF (47%). Diastolic function, LVEF, and left ventricular volume remained within the normal range in the other 23 patients. Mild pulmonary function study abnormalities occurred in 8 of 24 patients, 6 of whom were cigarette smokers. There were no significant changes in total lung capacity and forced vital capacity (FVC) values, but there was a 3% overall decrease in FEV1/FVC ratio (p = 0.05). In adult patients with HD, adjuvant LDRT after chemotherapy with ABVD or MOPP/ABVD did not result in a significant incidence of permanent pulmonary or cardiac toxicity after more than 6.3 years of median follow-up. Further studies are warranted to fully evaluate the impact of such therapy on cardiopulmonary function.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Corazón/efectos de los fármacos , Enfermedad de Hodgkin/terapia , Pulmón/efectos de los fármacos , Adolescente , Adulto , Bleomicina/administración & dosificación , Terapia Combinada , Dacarbazina/administración & dosificación , Relación Dosis-Respuesta en la Radiación , Doxorrubicina/administración & dosificación , Estudios de Evaluación como Asunto , Femenino , Estudios de Seguimiento , Enfermedad de Hodgkin/tratamiento farmacológico , Enfermedad de Hodgkin/radioterapia , Humanos , Masculino , Mecloretamina/administración & dosificación , Persona de Mediana Edad , Esfuerzo Físico/fisiología , Prednisona/administración & dosificación , Procarbazina/administración & dosificación , Radioterapia Adyuvante , Inducción de Remisión/métodos , Pruebas de Función Respiratoria , Vinblastina/administración & dosificación , Vincristina/administración & dosificación
6.
Circulation ; 98(14): 1407-13, 1998 Oct 06.
Artículo en Inglés | MEDLINE | ID: mdl-9760295

RESUMEN

BACKGROUND: The management of neonates with complex congenital anomalies depends on careful interpretation of arterial blood gas values. Improved interpretation of these oxygen parameters may allow clinicians to avoid unexpected cardiovascular events. This study examined whether systemic oxygen delivery (DO2) can be maximized by the use of indices derived from oxygen saturation measurements in neonates with hypoplastic left heart syndrome. METHODS AND RESULTS: For the single-ventricle heart with both circulations in parallel, we used a previously developed computer simulation to obtain DO2 as a function of systemic arterial (SaO2) and venous (SvO2) oxygen saturation, arteriovenous oxygen difference (Sa-vO2), or pulmonary-to-systemic flow ratio (Qp/Qs). We also examined the oxygen excess factor, SaO2/Sa-vO2 (Omega). We found that (1) slight increases in SaO2 may be associated with large decreases in DO2. (2) Low values for SvO2 indicate low values for DO2. (3) Curves for Sa-vO2 and Qp/Qs are redundant in the data provided. (Qp/Qs, however, provides these data in more physiologically relevant terms.) (4) High values for Qp/Qs (>4) are associated with low DO2. (5) Estimating Qp/Qs from oxygen saturation measurements may result in errors when pulmonary venous oxygen saturation is not available. (6) Maximizing DO2 is extremely difficult using SaO2, SvO2, and Qp/Qs. (7) A linear relationship exists between Omega and DO2, and this linear relationship is not altered by changes in cardiac output. CONCLUSIONS: Patients with low SvO2 values require attention. Ideally, after reducing Qp/Qs to <1.5, Omega might be a better index to guide further therapy and maximize DO2. Interventions that increased Omega would be considered beneficial, whereas interventions that decreased Omega would be considered detrimental.


Asunto(s)
Simulación por Computador , Síndrome del Corazón Izquierdo Hipoplásico/fisiopatología , Modelos Biológicos , Oxígeno/sangre , Gasto Cardíaco , Humanos , Síndrome del Corazón Izquierdo Hipoplásico/sangre , Recién Nacido , Circulación Pulmonar , Función Ventricular Derecha
7.
Bone Marrow Transplant ; 22(5): 507-9, 1998 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-9733277

RESUMEN

Pre-emptive antiviral therapy based on the early detection of CMV infection is an important strategy for the prevention of CMV disease following allogeneic BMT. Accepted methods for early detection of CMV infection include viral culture of blood or bronchial lavage specimens or CMV pp65 antigenemia testing of peripheral blood specimens. We describe a patient with aplastic anemia with worsening liver transaminases after allogeneic bone marrow transplantation who had repeated negative tests for CMV pp65 antigenemia despite positive viral blood cultures. Re-examination of peripheral blood samples with a different pp65 antibody pool revealed the presence of high levels of CMV in peripheral blood leukocytes, confirming a lack of reactivity to the original antibody pool. Following institution of antiviral therapy, a prompt reduction in the number of pp65 antigen-positive peripheral blood leukocytes paralleled a reduction in abnormal transaminases. The practical implications of these findings are discussed.


Asunto(s)
Anticuerpos Antivirales/sangre , Trasplante de Médula Ósea/efectos adversos , Infecciones por Citomegalovirus/sangre , Citomegalovirus/aislamiento & purificación , Fosfoproteínas/inmunología , Proteínas de la Matriz Viral/inmunología , Adulto , Citomegalovirus/inmunología , Infecciones por Citomegalovirus/inmunología , Humanos , Masculino
8.
Ann Thorac Surg ; 66(1): 92-4, 1998 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-9692445

RESUMEN

BACKGROUND: Minimally invasive coronary artery bypass grafting has become an increasingly accepted therapy for selected patients with single-vessel coronary artery disease. Reported morbidity has focused on anastomotic problems, but the occurrence of serious wound complications after these procedures has not been well documented. METHODS: We reviewed our institutional experience with 35 patients to look for the incidence of serious wound complications. RESULTS: Three patients had serious wound problems after minithoracotomy for coronary artery bypass graft procedures. This represents an overall 9% wound morbidity rate and a 100% rate in the obese women. CONCLUSIONS: Wound complications at the incision site after minithoracotomy coronary artery bypass graft procedures seem to occur distinctly in obese women with redundant breasts.


Asunto(s)
Puente de Arteria Coronaria/efectos adversos , Infección de la Herida Quirúrgica/etiología , Adulto , Anciano , Anastomosis Quirúrgica/efectos adversos , Enfermedades de la Mama/complicaciones , Enfermedad Coronaria/patología , Enfermedad Coronaria/cirugía , Endoscopía/efectos adversos , Infecciones por Escherichia coli , Femenino , Estudios de Seguimiento , Humanos , Hipertensión/complicaciones , Incidencia , Procedimientos Quirúrgicos Mínimamente Invasivos , Infarto del Miocardio/complicaciones , Obesidad/complicaciones , Selección de Paciente , Infecciones Estafilocócicas , Arterias Torácicas/trasplante , Toracoscopía/efectos adversos , Toracotomía/efectos adversos , Toracotomía/métodos
10.
Bone Marrow Transplant ; 21(8): 835-7, 1998 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-9603411

RESUMEN

A 49-year-old man with mantle cell lymphoma received 2.5 g/m2 of cyclophosphamide and 900 mg/m2 of etoposide followed by 10 microg/kg/day of Filgrastim for PBPC mobilization. This was complicated by marked hyperleukocytosis and retinal hemorrhages. The patient's symptoms improved gradually following leukopheresis. To the best of our knowledge, this is the first report describing this complication in patients undergoing PBPC mobilization. Early recognition of symptoms is important in order to stop Filgrastim and initiate immediate leukapheresis.


Asunto(s)
Factor Estimulante de Colonias de Granulocitos/efectos adversos , Movilización de Célula Madre Hematopoyética , Leucocitosis/inducido químicamente , Linfoma no Hodgkin/tratamiento farmacológico , Hemorragia Retiniana/inducido químicamente , Filgrastim , Humanos , Masculino , Persona de Mediana Edad , Proteínas Recombinantes
11.
Cancer ; 82(8): 1506-12, 1998 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-9554528

RESUMEN

BACKGROUND: Limited information is available regarding the cardiac and pulmonary effects of high dose chemotherapy (HDCT) and autologous peripheral blood progenitor cell (PBPC) transplantation. METHODS: The authors evaluated cardiac and pulmonary function after BEAM (BCNU 300 mg/m2, etoposide 400 mg/m2/day x 3 days, cytosine arabinoside 200 mg/m2/day x 4 days, and melphalan 140 mg/m2), HDCT, and PBPC transplantation in 26 patients with non-Hodgkin's lymphoma or Hodgkin's disease. Therapy prior to BEAM included doxorubicin (25 patients), bleomycin (6 patients), and mediastinal irradiation (4 patients). All patients had pulmonary function tests (PFTs) and equilibrium radionuclide angiography before and at a median of 57 weeks after transplantation. RESULTS: Prior to high dose therapy, 8 patients had abnormal PFTs, including 6 with a diffusing capacity of the lung for carbon monoxide (DLCO) <70% of predicted value. At the time of reevaluation after HDCT, all patients included in the study were in complete remission, and none had received additional therapy after transplantation. At a median of 77 weeks after transplantation, none of the patients had cardiac or pulmonary symptoms. Moreover, there were no significant changes in total lung capacity, forced vital capacity, forced expiratory volume in 1 second/forced vital capacity, DLCO, or left ventricular ejection fraction values when compared with baseline studies. CONCLUSIONS: The authors concluded that HDCT with BEAM and PBPC transplantation did not result in significant cardiac or pulmonary toxicity, even in patients with borderline pretransplantation PFT values. Further studies of patients undergoing HDCT and PBPC transplantation are needed.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Corazón/fisiopatología , Trasplante de Células Madre Hematopoyéticas , Enfermedad de Hodgkin/terapia , Pulmón/fisiopatología , Linfoma no Hodgkin/terapia , Adulto , Anciano , Carmustina/administración & dosificación , Terapia Combinada , Citarabina/administración & dosificación , Femenino , Corazón/efectos de los fármacos , Enfermedad de Hodgkin/fisiopatología , Humanos , Pulmón/efectos de los fármacos , Linfoma no Hodgkin/fisiopatología , Masculino , Melfalán/administración & dosificación , Persona de Mediana Edad , Neutropenia/terapia , Neutrófilos , Podofilotoxina/administración & dosificación , Pruebas de Función Respiratoria , Estudios Retrospectivos , Función Ventricular Izquierda
12.
Eur J Cardiothorac Surg ; 13(1): 36-41, 1998 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-9504728

RESUMEN

INTRODUCTION: Under certain conditions (small internal mammary artery (IMA) or large runoff), double grafting of the left anterior descending (LAD) artery system is necessary to avoid the ominous consequences of myocardial hypoperfusion. Previous studies have shown that a saphenous vein (SVG) adjacent to an IMA graft leads to failure of the IMA. This study compares IMA flow patterns when adjacent ( < 1 cm) and separated (3-4 cm) from a SVG placed on a proximally occluded LAD. METHODS: A SVG and right IMA (PIMA) to proximal LAD (2.5-3 mm) coronary bypass were performed in 12 mongrel dogs. The left IMA (DIMA) was anastomosed to the distal LAD (1.5 mm). All anastomoses were carried out without cardiopulmonary bypass. The native LAD was occluded proximally to the PIMA anastomosis, and all graft flows were measured in competitive and non-competitive flow conditions. RESULTS: Isolated graft to LAD flows were similar for the three conduits. There was a drop in flow in both the PIMA and DIMA when placed in competition with the SVG (10.1+/-3.0 vs. 19.1+/-4.6 ml/min; P < 0.05). The total drop in flow was significantly greater in the PIMA (67.6 vs. 39.9%; P < 0.05). Diastolic flow was better preserved in the distal IMA graft (19.6 + 5.6 vs. 10.2+/-3.0 ml/min; P < 0.05). The patterns of flow were much different during competition and there was significant retrograde systolic flow in all PIMA grafts while there was no (n = 5) or minimal retrograde flow (n = 7) in the DIMA grafts. CONCLUSION: An IMA graft, when adjacent to a SVG, sustains a significant decrease in both total and diastolic flows and develops an oscillating pattern of flow in early systole (retrograde then antegrade). Placing the IMA more distally on the LAD improves flow and decreases retrograde flow. In clinical situations requiring double grafting on the LAD, distance between grafts may be an important factor in maintaining IMA patency.


Asunto(s)
Oclusión de Injerto Vascular/prevención & control , Supervivencia de Injerto , Anastomosis Interna Mamario-Coronaria/efectos adversos , Anastomosis Interna Mamario-Coronaria/métodos , Vena Safena/trasplante , Análisis de Varianza , Animales , Circulación Coronaria , Modelos Animales de Enfermedad , Perros , Oclusión de Injerto Vascular/etiología , Resistencia Vascular
13.
Cancer ; 79(5): 1009-13, 1997 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-9041164

RESUMEN

BACKGROUND: Anecdotal reports of chlorambucil-induced seizures have sporadically appeared, mainly in the nononcologic literature. The majority of cases have occurred in patients treated with high dose therapy and in children with nephrotic syndrome. Because of its rarity, oncologists and hematologists may not be aware of this potential complication. METHODS: Two elderly patients with a remote history of seizures had generalized tonic-clonic seizures 3 days after chlorambucil therapy was initiated. A MEDLINE search was performed of previously reported cases and additional cases were found in the bibliographies of retrieved articles. RESULTS: In addition to the 2 new cases presented here, there have been 28 reported cases of chlorambucil-induced seizures. Underlying diseases included nephrotic syndrome (n = 12 cases), solid tumors (n - 10 cases), non-Hodgkin's lymphoma (n = 3 cases), and chronic lymphocytic leukemia (n = 1 case). Five cases were secondary to accidental overdose. Sixteen of 30 patients were younger than 18 years; 11 had nephrotic syndrome, 1 had choriocarcinoma, and 4 accidentally ingested the medication. Nine of 14 adults received high dose chlorambucil in Phase I-II studies or as part of a conditioning regimen prior to bone marrow transplantation for solid tumors, 3 were on intermittent pulse therapy, 1 was on daily low dose administration of chlorambucil, and 1 patient had an accidental poisoning. Two patients had recurrent seizures when they were rechallenged with chlorambucil. CONCLUSIONS: A relatively high incidence of chlorambucil-induced seizures in children with nephrotic syndrome may be due to an increased sensitivity in childhood or altered pharmacokinetics. In adults without a seizure history, seizures were observed only in patients treated with high dose chlorambucil; however, in adults with a seizure history, lower doses as used in pulse therapy also caused seizures. In the latter group of patients, daily low dose chlorambucil or, more likely, an alternative drug may be the safest approach to therapy.


Asunto(s)
Antineoplásicos Alquilantes/efectos adversos , Clorambucilo/efectos adversos , Convulsiones/inducido químicamente , Anciano , Anciano de 80 o más Años , Humanos , Linfoma no Hodgkin/tratamiento farmacológico , Masculino
14.
J Clin Oncol ; 15(2): 518-27, 1997 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-9053473

RESUMEN

PURPOSE: To evaluate the utility of periodic gallium (67Ga) scans in the management of patients with Hodgkin's disease. PATIENTS AND METHODS: From 1990 to 1994, 101 patients treated for Hodgkin's disease (stage I to II, n = 67; stage III to IV, n = 34) had a positive 67Ga scan at the time of diagnosis. Treatment included chemotherapy in 27 patients, radiation therapy in 28, and combined modality therapy in 46. All patients underwent 67Ga scans at the time of diagnosis, near the end or just after treatment, and at periodic follow-up evaluation. RESULTS: After treatment, the 67Ga scan remained positive in four patients and was interpreted as negative in 97. Among the four patients with positive scans, two died of progressive disease and two relapsed. Among the remaining 97 patients with negative 67Ga scans, 16 patients relapsed, including five with stage I to II (7.5%) and 11 with stage III to IV (34.4%) disease. The negative predictive value of posttherapy 67Ga scan was 83.5% for all patients; however, when calculated according to stage, it was 92.4% for patients with stage I to II disease and 64.5% for patients with stage III to IV disease (P < .01). CONCLUSION: A positive 67Ga scan at the end of therapy is rarely seen in patients with Hodgkin's disease and should be considered a manifestation of gross residual disease. However, a negative 67Ga scan after therapy had a significantly lower predictive value in patients with stage III to IV disease compared with stage I to II disease. The predictive value of 67Ga scans, as well as newer imaging studies, should be analyzed according to pretreatment stage.


Asunto(s)
Radioisótopos de Galio , Enfermedad de Hodgkin/diagnóstico por imagen , Tomografía Computarizada de Emisión de Fotón Único , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Quimioterapia Adyuvante , Niño , Femenino , Enfermedad de Hodgkin/patología , Enfermedad de Hodgkin/terapia , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Valor Predictivo de las Pruebas , Radioterapia Adyuvante , Resultado del Tratamiento
15.
J Clin Oncol ; 14(9): 2435-43, 1996 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-8823321

RESUMEN

PURPOSE: Late solid tumors (STs) are a significant cause of morbidity and mortality in long-term survivors of Hodgkin's disease. To investigate the carcinogenic potential of two different therapeutic approaches, we measured the relative risk (RR) of STs in patients with early-stage disease cured after primary full-dose (approximately 40 Gy) radiation therapy (RT) and in patients with advanced disease who were treated with chemotherapy followed by low-dose (15 to 30 Gy) involved-field radiation (CMT). PATIENTS AND METHODS: Because therapy-induced STs generally begin after a latency period of 5 to 10 years, we restricted our analysis to patients treated before 1986 who achieved durable remissions. Patients who required salvage chemotherapy or who died of Hodgkin's disease were excluded from analysis. The RR of STs was calculated by dividing the observed number of cases by the expected number in a matched population from the Connecticut Tumor Registry. The actuarial incidence of STs was also measured. RESULTS: A total of 197 patients formed the RT group and 116 the CMT group. The median follow-up period in the RT group was 12.8 years, versus 13.5 years in the CMT group. The overall RR of STs in the CMT group was 1.5 (95% confidence interval [CI], 0.6 to 3.5; P = .122). There were no cases of lung or breast cancer. In the RT group, the overall RR of STs was 3.3 (95% CI, 2.0 to 5.3; P < .001). There were seven cases of lung cancer (RR = 10.8; 95% CI, 5.3 to 22.2; P < .001) and two cases of breast cancer (RR = 2; 95% CI, 0.6 to 7.4; P = .07). All six benign tumors occurred in the RT group. CONCLUSION: In patients cured by initial treatment for Hodgkin's disease, RT was associated with a statistically significant increase in STs, particularly lung cancer. CMT was not associated with a significant increase in STs. These data may have important implications for the design of newer therapies for early-stage Hodgkin's disease.


Asunto(s)
Enfermedad de Hodgkin/terapia , Neoplasias Primarias Secundarias/etiología , Análisis Actuarial , Adolescente , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Femenino , Estudios de Seguimiento , Enfermedad de Hodgkin/tratamiento farmacológico , Enfermedad de Hodgkin/radioterapia , Humanos , Masculino , Persona de Mediana Edad , Neoplasias Inducidas por Radiación/etiología , Radioterapia/efectos adversos , Dosificación Radioterapéutica , Radioterapia Adyuvante , Factores de Riesgo
16.
J Clin Oncol ; 14(6): 1943-9, 1996 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-8656264

RESUMEN

PURPOSE: To determine the clinicopathologic features of lymphoproliferative disorders (LPD) that occur in the setting of methotrexate (MTX) therapy for rheumatic diseases (RD) and to define the relationship between the presence of Epstein-Barr virus (EBV) in tumor cells and the response of LPD to MTX withdrawal. PATIENTS AND METHODS: In addition to nine new cases, we analyzed 28 cases previously reported in the literature of LPD in patients receiving MTX for RD. In addition to MTX, immunosuppressive therapy included corticosteroids in 19 patients, azathioprine in three, and cyclosporine in one. Extranodal disease was identified in 16 patients, but none had CNS involvement. Pathologic findings included five cases of Hodgkin's disease and seven low-grade lymphomas. The remaining patients had intermediate or aggressive lymphomas. In situ hybridization studies (ISHS) for EBV-RNA transcripts were positive in 12 of 27 patients (44%). RESULTS: Among 37 patients, 16 were initially observed after MTX withdrawal without additional antitumor therapy. Six achieved a spontaneous complete remission (CR), three had a partial response (PR), one had a minimal response, and six had no response to MTX withdrawal. Of 10 responding patients, EBV was detected by ISHS (n = 6) or polymerase chain reaction (PCR) (n = 2); one patient had a CR despite the absence of EBV by PCR and one had a CR but did not have viral assays performed. Only one of six patients with negative EBV by ISHS or PCR responded to MTX withdrawal. CONCLUSION: MTX withdrawal and observation for a short period should be considered in the initial management of patients who develop LPD while on MTX therapy. Responses were consistently observed, but not limited to patients in whom EBV was detected by ISHS or PCR. Further studies are required to confirm these findings and to evaluate the role for EBV in LPD that occur in patients receiving MTX.


Asunto(s)
Antirreumáticos/efectos adversos , Artritis Reumatoide/tratamiento farmacológico , Inmunosupresores/efectos adversos , Trastornos Linfoproliferativos/inducido químicamente , Metotrexato/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Antirreumáticos/uso terapéutico , Femenino , Herpesvirus Humano 4/aislamiento & purificación , Humanos , Inmunosupresores/uso terapéutico , Trastornos Linfoproliferativos/virología , Masculino , Metotrexato/uso terapéutico , Persona de Mediana Edad
17.
Presse Med ; 25(12): 587-9, 1996 Apr 06.
Artículo en Francés | MEDLINE | ID: mdl-8657674

RESUMEN

Isolated aspergillosis of the sphenoid sinus is a difficult diagnosis because the often misleading clinical manifestations of this rare disease develop late. We report a case of invasive aspergillosis uniquely involving the sphenoid sinus revealed by clinical features suggesting pseudotumor of the pituitary in an immunocompetent man. A 71-year-old man presented sudden onset palsy of the abductor nerve of the left eye. Neuroimaging suggested a pseudotumor of the pituitary. Sphenoid sinusitis was discovered at surgery. The diagnosis of aspergillosis was provided by the histology examination of the sphenoid mucosa. Despite medical treatment with itraconazol alone then in combination with amphotericine B, the infectious process progressed to the pituitary, the cavernous sinus, the upper orbital fissue and the optic canal. Cure was finally achieved after a second surgical procedure to drain and aerate the sphenoid sinus. Aspergillosis of the sphenoid sinus is usually discovered due to neurological signs such as a cavernous sinus syndrome, pseudotumor of the pituitary or the orbit. Diagnosis is often made intraoperatively or at histology examination. Invasive forms almost always are seen in immunosuppressed subjects. In our case, the patient was immunocompetent and had no past history of sinusitis. The invasive sphenoid aspergillosis invaded bone tissue, the cavernous sinus and the meninges.


Asunto(s)
Aspergilosis/terapia , Enfermedades de los Senos Paranasales/terapia , Seno Esfenoidal , Anciano , Anfotericina B/uso terapéutico , Antifúngicos/uso terapéutico , Aspergilosis/diagnóstico , Drenaje , Humanos , Itraconazol/uso terapéutico , Masculino , Enfermedades de los Senos Paranasales/diagnóstico
18.
Gastroenterologist ; 4(1): 54-64, 1996 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-8689146

RESUMEN

Recent evidence suggests that a significant proportion of primary gastrointestinal lymphomas are driven by exogenous agents/antigens. In the stomach, Helicobacter pylori appears to be responsible for most cases of low-grade lymphomas (MALToma), whereas an infectious etiology is suspected in immunoproliferative small intestine disease (IPSID). Similarly, enteropathy-associated T-cell lymphomas appear to result from a disordered response to gluten, although this profile remains controversial. Accordingly, although traditional antineoplastic treatments, such as surgery and radiation, are still important for the treatment of primary GI lymphomas, antibiotics may be the first line of therapy for low-grade gastric MALToma, and they are often used alone or in combination with chemotherapy for IPSID. In patients with celiac sprue, a gluten-free diet appears to markedly reduce the risk for lymphoma. An important caveat for the treatment of gastric lymphomas is that only low-grade gastric MALTomas have consistently responded to antibiotics. Treatment of high-grade gastric lymphoma is evolving. Although surgery was once considered central to diagnosis, staging, and treatment of gastric lymphoma, most patients can now have a diagnosis established by endoscopic biopsy and are candidates for chemotherapy and adjuvant radiation. The risks of fatal hemorrhage and perforation have probably been vastly overestimated and appear to be equal or less than the mortality associated with surgery. In addition, the long-term effects of gastric resection on quality of life have been almost completely ignored. Systemic lymphomas involve the GI tract far more often than is clinically apparent. In most cases, treatment should not be affected.


Asunto(s)
Neoplasias Gastrointestinales , Linfoma , Enfermedad Celíaca , Infecciones por Helicobacter , Helicobacter pylori , Humanos , Enfermedad Inmunoproliferativa del Intestino Delgado , Linfoma Relacionado con SIDA , Linfoma de Células B de la Zona Marginal , Linfoma de Células T
19.
Cancer Invest ; 14(6): 527-33, 1996.
Artículo en Inglés | MEDLINE | ID: mdl-8951357

RESUMEN

We reviewed all reported cases of Burkitt's lymphoma and/or Burkitt's leukemia (BLL) occurring following therapy for Hodgkin's disease. In addition to the case described in this report, a total of 19 patients have been previously reported. The male/female ratio was 3.75. Treatment for Hodgkin's disease included chemotherapy combined with radiation therapy in 15 patients, chemotherapy in 3 patients, and radiation therapy alone in 1 patient. Median interval between Hodgkin's disease and the diagnosis of BLL was 97 months. Patient characteristics are similar to those with de novo BLL. Bone marrow, abdomen, central nervous system, as well as extranodal organs were commonly involved. Typical cytogenetic translocations seen in patients with primary BLL were found in 6 patients, but 5 of these patients had additional cytogenetic abnormalities. Only 2 patients achieved complete remission after chemotherapy. The mechanism for the development of BLL after treatment for Hodgkin's disease is unknown. Although the majority of cases have been seen in patients treated with combined-modality therapy, the role of previous therapy in causing this complication cannot be assessed in this study.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Linfoma de Burkitt/patología , Linfoma Folicular/tratamiento farmacológico , Neoplasias del Mediastino/tratamiento farmacológico , Neoplasias Primarias Secundarias/patología , Leucemia-Linfoma Linfoblástico de Células Precursoras/patología , Neoplasias de la Columna Vertebral/tratamiento farmacológico , Vértebras Torácicas , Adulto , Bleomicina/administración & dosificación , Linfoma de Burkitt/tratamiento farmacológico , Ciclofosfamida/administración & dosificación , Dacarbazina/administración & dosificación , Doxorrubicina/administración & dosificación , Etopósido/administración & dosificación , Femenino , Humanos , Linfoma Folicular/patología , Mecloretamina/administración & dosificación , Neoplasias del Mediastino/patología , Neoplasias Primarias Secundarias/tratamiento farmacológico , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamiento farmacológico , Prednisona/administración & dosificación , Procarbazina/administración & dosificación , Neoplasias de la Columna Vertebral/patología , Vinblastina/administración & dosificación , Vincristina/administración & dosificación
20.
Cancer J Sci Am ; 1(4): 267-73, 1995.
Artículo en Inglés | MEDLINE | ID: mdl-9166487

RESUMEN

PURPOSE: To describe the long-term results of treatment with chemotherapy plus adjuvant low-dose, involved-field radiation therapy (CMT) in patients with advanced Hodgkin's disease. Data on disease-free and failure-free survival, second malignancies, and the results of salvage therapy are presented. PATIENTS AND METHODS: From 1969 to 1989, CMT was administered to 186 patients with previously untreated stage IIB, III, and IV Hodgkin's disease. Chemotherapy included MVVPP (47%), MOPP (25%), MOPP/ABVD (26%) and ABVD (2%). After 6 months of chemotherapy, patients received radiation to all involved sites with the exception of the bone marrow. RESULTS: The failure-free survival for all patients was 63% at 5 years, 56% at 10 years, and 40% at 23.5 years, respectively. Significantly worse results were observed in patients older than 40 years and those with stage IV disease. The overall survival of 45 patients after recurrence was 39% at 10 years, but was only 21% if the initial complete remission lasted less than 1 year. Thus far, 21 of 165 patients (12.7%) who achieved complete remission have developed a second malignancy, and 16 have died. CONCLUSIONS: In comparison with comparable chemotherapy programs, chemotherapy plus radiation therapy may improve disease-free survival; however, the results of treatment in patients older than age 40 or with stage IV disease are still poor. Although patients with initial remissions lasting longer than 1 year can have durable second remissions, the long-term disease-free survival is poor and in the current series the majority of failures were due to recurrent Hodgkin's disease.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Enfermedad de Hodgkin/tratamiento farmacológico , Enfermedad de Hodgkin/radioterapia , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Bleomicina/uso terapéutico , Niño , Preescolar , Terapia Combinada , Dacarbazina/uso terapéutico , Supervivencia sin Enfermedad , Doxorrubicina/uso terapéutico , Femenino , Estudios de Seguimiento , Humanos , Masculino , Mecloretamina/uso terapéutico , Persona de Mediana Edad , Recurrencia Local de Neoplasia/tratamiento farmacológico , Recurrencia Local de Neoplasia/radioterapia , Neoplasias Primarias Secundarias/tratamiento farmacológico , Neoplasias Primarias Secundarias/radioterapia , Prednisona/uso terapéutico , Procarbazina/uso terapéutico , Inducción de Remisión , Terapia Recuperativa , Factores de Tiempo , Resultado del Tratamiento , Vinblastina/uso terapéutico , Vincristina/uso terapéutico
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