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1.
CMAJ ; 187(8): 602, 2015 May 19.
Artículo en Inglés | MEDLINE | ID: mdl-25991852
2.
HPB (Oxford) ; 5(2): 96-9, 2003.
Artículo en Inglés | MEDLINE | ID: mdl-18332964

RESUMEN

BACKGROUND: Conventional surgical wisdom is that a patient with gallstone pancreatitis should have the gallbladder removed during their initial hospitalization. However, patients are now often discharged to await operating room availability. METHODS: A retrospective review of all cases of gallstone pancreatitis at the Foothills Hospital between 1992 and 1996 was undertaken. Patients with a first attack of mild gallstone pancreatitis were studied. RESULTS: In all, 164 patients were identified: 90 patients were discharged for readmission cholecystectomy (discharged group), and 74 patients had the cholecystectomy before discharge (in-hospital group). Over the 5-year time period the proportion of patients discharged for readmission cholecystectomy increased from 27% to 67% (p<0.01). The total number of days waited for operation was greater in the discharged group versus in-hospital group: 40+/-69 days versus 8+/-10 days respectively (mean+/-SD). There was a trend towards an increased total number of days in hospital in the in-hospital group, 15.5+/-17 days versus 10.7+/-16 days. In the discharged group 20% (18 of 90) of patients experienced an adverse event requiring readmission while awaiting operation. Three had documented recurrent pancreatitis, 10 experienced recurrent pain, and 5 developed acute cholecystitis. There were no deaths in either group. DISCUSSION: Twenty percent of patients with gallstone pancreatitis who are discharged to await operating room time (average wait 40 days) will require readmission for biliary symptoms.

5.
J Trauma ; 43(2): 283-7, 1997 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-9291374

RESUMEN

BACKGROUND: The objective of this study was to combine a physiologic triage score (prehospital index, PHI) with criteria regarding mechanism of injury (MOI) to increase the efficacy of trauma triage. The specific question being asked was: will the combined score improve the sensitivity and specificity over that of the individual scores? METHODS: In this prospective study, 3,147 injury patients (all adults > or = 14 years) were reviewed. Each patient received a PHI score and a MOI score in the field, which were compared with their Injury Severity Score (ISS) at separation. An ISS > or = 16 was defined as major trauma. RESULTS: PHI alone had a sensitivity of 41%, MOI alone had a sensitivity of 73%, whereas the combined PHI/MOI score had a sensitivity of 78%. All three had similar specificities. These findings were statistically significant (p < or = 0.001). CONCLUSION: The combined PHI/MOI score was better at identifying those patients with ISS scores > or = 16 compared with the PHI and MOI scores alone. Although this permitted superior triage (and minimized overtriage), the combined score did not identify all major trauma patients.


Asunto(s)
Servicios Médicos de Urgencia , Puntaje de Gravedad del Traumatismo , Triaje/métodos , Heridas y Lesiones/clasificación , Accidentes , Adolescente , Adulto , Humanos , Estudios Prospectivos , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Deportes , Triaje/normas , Violencia , Heridas y Lesiones/diagnóstico , Heridas y Lesiones/etiología
6.
Clin Invest Med ; 19(6): 453-60, 1996 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-8959355

RESUMEN

OBJECTIVE: To develop a disease-specific quality-of-life scale for symptomatic cholelithiasis for use in clinical trials, and to evaluate its reliability, construct validity and responsiveness. DESIGN: Questionnaire. PARTICIPANTS: Health care professionals, patients with symptomatic cholelithiasis and their significant others. INTERVENTIONS: A 114-item questionnaire was developed from open-ended questions completed by the participants. Questions dealt with physical symptoms, activities of daily living, job performance, leisure activities, emotional factors, marital and sexual relations, support networks and financial situation. The questionnaire was administered by an interviewer to 50 subjects booked for elective cholecystectomy: frequency-importance products were calculated for each of the 114 items. A final shortened scale (the Gallstone Impact Checklist [GIC]) contained 41 items and was completed by patients with symptomatic cholelithiasis on two occasions, 4 to 6 weeks apart. RESULTS: The checklist requires 10 to 15 minutes to complete. Reliability of the questionnaire and its four subscales was assessed by Cronbach's alpha (overall questionnaire 0.88, pain 0.60, dyspepsia 0.73, emotional impact 0.78 and food and eating 0.84). Construct validity was established by comparison of questionnaire subscales with global ratings of physical and emotional health. Among subjects who reported a difference in their symptoms attributed to gallstones, there was a significant change in total GIC score and in each of the four subscales. Among patients who had undergone cholecystectomy, the absolute value of the effect size was 1.63. CONCLUSIONS: The GIC has content validity and appears to be a reliable, responsive measure of within-person change for subjects with symptomatic cholelithiasis.


Asunto(s)
Colelitiasis , Calidad de Vida , Adulto , Colelitiasis/fisiopatología , Colelitiasis/psicología , Dispepsia , Ingestión de Alimentos , Emociones , Femenino , Alimentos , Humanos , Masculino , Persona de Mediana Edad , Dolor , Encuestas y Cuestionarios
7.
Ann Surg ; 224(5): 598-602, 1996 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-8916874

RESUMEN

BACKGROUND: The Cooperative Hernia Study assessed postoperative pain in a prospective trial as part of a larger study looking at the recurrence rate and other morbidity of the Bassini, McVay, and Shouldice repairs. METHODS: Patients were randomized to one of three surgical hernia repairs. Patients were seen in follow-up at 6, 12, and 24 months and were assessed for the presence of pain, numbness, paresthesia, and recurrence. RESULTS: Three hundred fifteen patients were seen in follow-up, with 276 seen at the 2-year mark. At 1 year, 62.9% of patients had groin or inguinal pain and 11.9% of patients had moderate to severe pain; 53.6% had pain and 10.6% of patients continued to report moderate to severe pain 2 years postoperatively. The predictors for long-term postoperative pain were as follows: absence of a visible bulge before the operation (p < 0.001); presence of numbness in the surgical area postoperatively (p < 0.05); and patient requirement of more than 4 weeks out of work postoperatively (p < 0.004). Three distinct chronic pains were identified. The most common and most severe pain was somatic, localized to the common ligamentous insertion to the public tubercle. The second was neuropathic and was referable to the ilioinguinal or genitofemoral nerve distribution. This was likely because of injury to the genitofemoral nerves, either at surgery or subsequently by encroachment of scar. The third pain was visceral, ejaculatory pain. Twenty-four percent of patients had postoperative numbness at 2 years, independent of the type of repair. Numbness was most common in the distribution of cutaneous branches of the ilioinguinal and iliohypogastric nerves. CONCLUSION: Pain or numbness are common late sequelae of traditional external surgical hernia repairs. Strategies need to be developed to reduce the risk of these complications.


Asunto(s)
Hernia Inguinal/cirugía , Dolor Postoperatorio/epidemiología , Adulto , Estudios de Seguimiento , Humanos , Dimensión del Dolor , Estudios Prospectivos
8.
Can J Surg ; 37(3): 243-4, 1994 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-8199946

RESUMEN

Seeding of tumour cells at the umbilical port during laparoscopic surgery for staging malignant disease has been reported. In this paper a 69-year-old woman is described who had umbilical metastasis after laparoscopic cholecystectomy for unsuspected gallbladder cancer. The experience of this case and that of other reports suggests that when laparoscopic techniques are used for the resection of tumours, the excised specimen should be enclosed in a nonporous bag for removal through the abdominal wall.


Asunto(s)
Neoplasias Abdominales/secundario , Adenocarcinoma/secundario , Adenocarcinoma/cirugía , Colecistectomía Laparoscópica/efectos adversos , Colecistitis/cirugía , Neoplasias de la Vesícula Biliar/cirugía , Siembra Neoplásica , Ombligo/patología , Adenocarcinoma/patología , Anciano , Diagnóstico Diferencial , Femenino , Neoplasias de la Vesícula Biliar/patología , Humanos
10.
Transplantation ; 55(2): 237-42, 1993 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-8434370

RESUMEN

Following liver transplantation bile formation may be influenced by hepatic denervation and cyclosporine therapy. To better establish any effect of liver transplantation on bile secretion, 6 mongrel dogs were studied: 3 underwent liver denervation by a modified autotransplantation procedure and insertion of a Thomas cannula to create a chronic duodenal fistula; 3 others had cholecystectomy and the duodenal cannula placement without manipulating the liver. One month after surgery, two control studies were done, one week apart. Then oral cyclosporine was given in doses of 5, 15, and 50 mg/kg/day for consecutive 1-week periods each. Twice on each cyclosporine regimen, after 4 and 7 days of therapy, the common duct was cannulated and bile collected for 5 h; animals were awake and fasted. The first 3 h of bile collection established basal conditions; flow was then stimulated with consecutive hour-long taurocholate infusions at 1 and 2 mumol/kg/min. In all dogs, bile flow increased as the cyclosporine dose increased, under both basal and bile salt-stimulated conditions. The increased flow primarily resulted from increased bile salt-independent flow. Cyclosporine had no effect on bile salt, bilirubin, or cholesterol secretion. Phospholipid secretion, however, decreased significantly in a dose-related manner with increasing cyclosporine in the dogs with autotransplanted livers, but not in the nontransplanted dogs. This decrease in phospholipid secretion resulted in a significant increase in the calculated cholesterol saturation of bile. Thus, cyclosporine administered orally is not cholestatic but rather increases bile flow independent of any change in bile salt secretion. Cyclosporine reduced phospholipid secretion in autotransplanted dogs, possibly related to denervation of the liver. The resultant change in biliary composition may pose a risk factor for gallstone formation.


Asunto(s)
Bilis/química , Bilis/fisiología , Ciclosporina/farmacología , Trasplante de Hígado , Animales , Bilis/efectos de los fármacos , Ácidos y Sales Biliares/metabolismo , Colesterol/metabolismo , Ciclosporina/sangre , Ciclosporina/toxicidad , Perros , Masculino , Fosfolípidos/metabolismo , Trasplante Autólogo
11.
J Pediatr Surg ; 27(4): 529-30, 1992 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-1522475

RESUMEN

Splenic rupture, in association with mononucleosis, can be lethal. Most reported cases of splenic rupture in patients with mononucleosis have not responded to conservative splenic preserving measures and have resulted in splenectomy. We report a case of traumatic splenic disruption in a patient with mononucleosis in whom conservative management was successful. We recommend consideration of splenic preservation measures in patients with mononucleosis and splenic disruption, if the patient is stable and meets other criteria of conservative management.


Asunto(s)
Mononucleosis Infecciosa/complicaciones , Rotura del Bazo/terapia , Adolescente , Humanos , Masculino , Rotura del Bazo/complicaciones
12.
J Surg Oncol ; 49(2): 122-6, 1992 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-1738234

RESUMEN

Three cases are described in which carcinoid tumors arose in previously established inflammatory bowel disease: two were in the ileum in cases of Crohn's disease, and one was in the rectum in a case of ulcerative colitis. Review of this association in the literature suggests that it may be more than fortuitous.


Asunto(s)
Tumor Carcinoide/etiología , Colitis Ulcerosa/complicaciones , Enfermedad de Crohn/complicaciones , Neoplasias del Íleon/etiología , Adulto , Tumor Carcinoide/patología , Femenino , Humanos , Neoplasias del Íleon/patología , Neoplasias Hepáticas/secundario , Masculino , Persona de Mediana Edad
13.
Can J Physiol Pharmacol ; 68(1): 136-8, 1990 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-2328441

RESUMEN

Cyclosporine A is reported to cause cholestasis, but the evidence is confounded by anesthesia and surgery used in acute experiments. To better investigate the effect of cyclosporine on the liver, bile output was directly measured in three cholecystectomized dogs by cannulating the common duct through a chronic duodenal fistula. Control studies were done 1 month after surgery. Cyclosporine in oral doses of 5, 15, and 50 mg.kg-1.d-1 was then given for consecutive 1-week periods. Twice during each study period, bile output was measured for 5 h in fasted, awake animals: 3 h to establish basal conditions, followed by 2 h of taurocholate infusions at 1 and then 2 mumols.kg-1.min-1. Under basal conditions, bile flow rose with each dose of cyclosporine, increasing 63, 127, and 179% above control with cyclosporine 5, 15, and 50 mg.kg-1,d-1, respectively. Bile flow increased similarly during taurocholic acid stimulation. Cyclosporine had no effect on bile salt or bilirubin secretion. In this chronic dog model isolated from other causes of cholestasis, cyclosporine did not induce cholestasis but rather caused a dose-related choleresis without any change in bile salt secretion.


Asunto(s)
Bilis/metabolismo , Ciclosporinas/farmacología , Animales , Bilirrubina/metabolismo , Enfermedad Hepática Inducida por Sustancias y Drogas/fisiopatología , Colecistectomía , Ciclosporinas/toxicidad , Perros , Relación Dosis-Respuesta a Droga
14.
J Clin Gastroenterol ; 11(2): 193-6, 1989 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-2738360

RESUMEN

In 236 resection specimens of Crohn's disease (127 first excisions and 109 reexcisions) there were 60 specimens with fistulas (excluding anal fistulas): 44 in first excisions and 16 in reexcisions. In primary excisions, 36 fistulas arose in the ileum, three in the colon and five in the ileocecal valve. The majority were located either at the proximal end of a stricture (62%) or within a stricture (31%); four cases (7%) were not associated with strictures. In reexcision specimens, ten fistulas arose at the bowel anastomosis, four arose in the ileum in association with strictures, and two were of doubtful origin. Only four fistulas in primary excisions drained to the skin whereas seven did so in reexcisions.


Asunto(s)
Enfermedad de Crohn/patología , Fístula Intestinal/patología , Colitis/patología , Fístula/patología , Humanos , Ileítis/patología , Válvula Ileocecal/patología , Recurrencia , Enfermedades de la Piel/patología
15.
Clin Invest Med ; 11(2): 129-33, 1988 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-3293866

RESUMEN

We have studied a 25-year-old female with frequent, severe hypoglycemic episodes. Concurrent with low serum glucose levels, the concentrations of C-peptide and insulin were markedly elevated. Tests for sulfonylurea hypoglycemic agents were negative. Special tests did not disclose any neoplasm. Biopsy of the pancreatic tail revealed islet cell hyperplasia and adenomatosis. About two-thirds of the pancreas was resected, resulting in correction of all metabolic abnormalities. Specific fluorescein-labeled anti-insulin antibodies revealed staining in 60-80% of the cultured cells isolated from the patient's pancreas, while electron microscopy disclosed insulin storage granules in about 80%. By comparison, for each of these findings, the range for cells from normal pancreases was 30-50%. In contrast to these control cells, cells from the patient grew about 2 and 2.6 times more rapidly during the first two cell cycles, and the growth persisted through four cycles. The greater and more enduring growth of the patient's cells in culture must have been at least partly independent of circulating factors. Paracrine/autocrine principles from the beta cells or other islet cells may have been responsible.


Asunto(s)
Islotes Pancreáticos/patología , Adulto , Células Cultivadas , Femenino , Humanos , Hiperplasia , Inmunohistoquímica , Insulina/metabolismo , Microscopía Electrónica
16.
Can Assoc Radiol J ; 38(4): 294-5, 1987 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-2961763

RESUMEN

Spontaneous retrograde intussusception causing obstruction is rare. We describe the radiographic and sonographic appearances, which should have been sufficient for preoperative diagnosis, in one patient.


Asunto(s)
Enfermedades del Colon/diagnóstico por imagen , Intususcepción/diagnóstico por imagen , Ultrasonografía , Adenocarcinoma/diagnóstico por imagen , Adenoma/diagnóstico por imagen , Anciano , Enfermedades del Colon/diagnóstico , Neoplasias del Colon/diagnóstico por imagen , Humanos , Obstrucción Intestinal/diagnóstico por imagen , Intususcepción/diagnóstico , Masculino , Radiografía
17.
Hepatology ; 6(1): 1-5, 1986.
Artículo en Inglés | MEDLINE | ID: mdl-3943774

RESUMEN

Immune complexes may be important in the pathogenesis of the liver disease associated with idiopathic ulcerative colitis. In the present study, we documented Fc receptor-mediated clearance by the reticuloendothelial system of immune complex-like material from the systemic circulation of 25 healthy control subjects, 19 patients with ulcerative colitis alone, 9 patients with ulcerative colitis and elevated liver enzyme tests and 8 patients with various other forms of chronic liver disease. Following an intravenous infusion of IgG-tagged 51Cr-labeled autologous erythrocytes, serial blood samples were drawn over a 2-hr period of time, and computer-generated clearance curves were obtained. The time required for clearance of 50% of infused erythrocytes (T1/2) was then calculated. Serum immunoglobulin (IgA, IgG and IgM), complement (C3 and C4) and immune complex-like activity (IgG and IgM types) were also determined. Sixteen of 19 (84%) ulcerative colitis patients and 7 of 8 (88%) chronic liver disease patients had normal clearance T1/2's (when compared to 25 healthy controls). Conversely, only 1 of 9 (11%) ulcerative colitis + chronic liver disease patients demonstrated normal clearance function. Aside from serum IgM levels, the results of serum immunoglobulin, complement and immune complex-like determinations were similar in ulcerative colitis and ulcerative colitis + chronic liver disease patients. Serum IgM levels, however, were significantly decreased in ulcerative colitis patients and increased in ulcerative colitis + chronic liver disease patients (p less than 0.001). The results indicate that the reticuloendothelial system of patients with ulcerative colitis and chronic liver disease is impaired in its ability to dear immune complex-like material from the systemic circulation.(ABSTRACT TRUNCATED AT 250 WORDS)


Asunto(s)
Colitis Ulcerosa/fisiopatología , Eritrocitos , Hepatopatías/fisiopatología , Sistema Mononuclear Fagocítico/fisiopatología , Receptores Fc/fisiología , Adulto , Complejo Antígeno-Anticuerpo/análisis , Enfermedad Crónica , Colitis Ulcerosa/inmunología , Femenino , Humanos , Hepatopatías/inmunología , Masculino , Persona de Mediana Edad , Fagocitosis
18.
Clin Invest Med ; 8(1): 62-7, 1985.
Artículo en Inglés | MEDLINE | ID: mdl-3987120

RESUMEN

Mortality from peptic ulcer disease in Canada declined significantly for males from 1950-1981, but changed little for females. Gastric and duodenal ulcer mortality, and mortality from perforated and bleeding peptic ulcer showed similar trends. Rates of hospitalization for male duodenal ulcer subjects also declined, with lesser effects among males with gastric ulcer, and females with either gastric or duodenal ulcer. Rates of partial gastrectomy and vagotomy and pyloroplasty or gastrojejunostomy declined from 1968-1981, especially for males. These changes in trends in peptic ulcer disease were contrasted with the overall mortality rate in Canada during the same period, which demonstrated a similar decline for both sexes. The trend to lower mortality, hospitalization and surgical procedures for peptic ulcer disease during this period was associated with a change in cigarette smoking habits in males but not females. The trends identified could not be correlated with the introduction of H2 antagonists for specific therapy of peptic ulcer disease.


Asunto(s)
Úlcera Duodenal/mortalidad , Úlcera Gástrica/mortalidad , Adolescente , Adulto , Anciano , Canadá , Niño , Preescolar , Úlcera Duodenal/complicaciones , Úlcera Duodenal/cirugía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Úlcera Péptica Hemorrágica/mortalidad , Úlcera Péptica Perforada/mortalidad , Úlcera Gástrica/complicaciones , Úlcera Gástrica/cirugía , Factores de Tiempo
20.
Can J Surg ; 27(4): 404-5, 1984 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-6744152

RESUMEN

The hypothesis that testicular torsion is more common in winter was examined in a retrospective survey of admissions to three Calgary hospitals. No seasonal peak in incidence of cases of torsion was identified from 1966 to 1982.


Asunto(s)
Estaciones del Año , Torsión del Cordón Espermático/epidemiología , Alberta , Frío , Humanos , Masculino , Estudios Retrospectivos
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