老年人的疼痛问题

何为"老"?理解衰老的最好办法是将其视为一种从生到死的过度和渐变过程.在人们眼中,一旦到了80岁,身体就会变得很衰弱,易受伤,易残疾.但凡事都有例外,最典型的例子就是著名的黑人领袖纳尔逊.曼德拉,他虽年事已高(88岁),但他的才学、智慧、饱经磨难和乐观豁达都是少有人能及的.     

Does the Heartbeat Award scheme in England result in change in dietary behaviour in the workplace?

The Heartbeat Award (HBA) scheme is a national nutrition labelling scheme that operates throughout England. The aim of this study was to assess whether the implementation of the HBA scheme in the workplace results in an improvement in eating habits at work. A longitudinal survey of employees using a structured questionnaire pre- and post-HBA intervention in six workplaces in Leicestershire, England, was conducted. A qualitative food frequency questionnaire was used to assess dietary behaviour 6 months before the scheme was implemented and 6 months afterwards. Four HBA workplaces (n = 453 employees) were compared with two comparison workplaces (n = 124 employees). The outcome measures for dietary change were consumption of 20 food items, i.e. 16 food-frequency and four food-type items. Changes in pre-intervention data compared with post-intervention data evaluated the impact of the HBA on eating habits. Differences were considered statistically different at the p < 0.05 level. Crude and adjusted odds ratios were used to assess differences in change in dietary behaviour between the intervention and comparison workplaces. The results showed that there was significantly more positive change in intervention workplaces only (i.e. the changes were not detected in the comparison workplaces) for four of the 20 food items tested: increase in consumption of fruit (p = 0.029); reduction in consumption of fried foods (p = 0.044) and sweet puddings (p = 0.042); and change to lower fat milks (p = 0.034). In conclusion, the HBA had a modest impact on dietary intake, resulting in a significant positive change in four out of 20 foods consumed by employees in HBA-holding premises.     

A phase II study of continuous infusion recombinant human granulocyte- macrophage colony-stimulating factor as an adjunct to autologous bone marrow transplantation for patients with non-Hodgkin's lymphoma in first remission

Recombinant human granulocyte-macrophage colony-stimulating factor (rhGM-CSF) clearly hastens myeloid recovery in patients with relapsed hematologic malignancies undergoing autologous bone marrow transplantation (ABMT). In efforts to further improve neutrophil engraftment and shorten hospital stay in ABMT patients, rhGM-CSF was administered by a potentially more potent route (continuous infusion) to non-Hodgkin's lymphoma (NHL) patients with better BM reserve (first remission). Time to myeloid engraftment was compared with that of NHL patients treated in first remission at our institution on a similar ABMT protocol but without growth factor support (controls). Median neutrophil engraftment (absolute neutrophil count, 500 cells/microL) in first remission patients treated with rhGM-CSF was 14 days, compared with 22 days in controls (P = .0001). Hospital stays were also significantly reduced for rhGM-CSF patients (P = .0003). Platelet engraftment did not differ between the two groups. Persistent fever and generalized serositis were the primary toxicities. rhGM-CSF, delivered by this route, was efficacious but more toxic than 2-hour rhGM-CSF infusions previously reported by other investigators. Future alterations in both dose and schedule may retain comparable efficacy yet diminish toxicity.     

Palmar Type of Median Artery as a Source of Superficial Palmar Arch: A Cadaveric Study with Its Clinical Significance

The superficial palmar arch (SPA) and its contributing arteries are highly variable. The palmar type of median artery (PMA) can be involved in the formation of the SPA by replacing the superficial palmar branch of the radial artery (RA) or the ulnar artery (UA). The present study was undertaken to investigate the presence of the PMA and its contribution in the formation of SPA in 42 cadavers (84 upper limbs) of Indian origin. When there was a PMA, its outer diameter was measured in the carpal tunnel. The PMA was found in 13 upper limbs (15.4%), and of these ten incidences (11.9%), the PMA took part in the formation of SPA, and in three instances (3.5%), the PMA did not make up part of the SPA. Out of the ten cases in which the PMA contributed to the formation of SPA, in six cases (7.1%), the PMA anastomosed with the UA; in three cases (3.5%), the PMA anastomosed with both the UA and the RA, and in one incidence (1.1%), the PMA joined the arteria radialis indicis (deep branch of the RA) to complete the SPA. The outer diameters of the median arteries varied between 0.8 and 2.6 mm with the mean value of 1.7 mm. The present study concludes that the median–ulnar type of SPA was the most common type of SPA when the PMA was encountered as a source of superficial arterial arcade of the hand, followed by the radial–median–ulnar type. The vascular patterns found in this study are important to hand surgeons. The present study of PMA origin, course, and its contribution to the SPA will add to the existing knowledge of the vascular anatomy of forearm and hand.     

Lower limb occlusive arterial disease in the North of England: workload and development of management guidelines. The Northern Regional Vascular Surgeons.

BACKGROUND: in 1997 the vascular surgeons across the North of England commenced a study to examine various aspects of the management of lower limb occlusive arterial disease (LLOAD). Two aspects of this work were to assess workloads between hospitals and develop guideline parameters for managing intermittent claudication (IC) and critical limb ischaemia (CLI). The guidelines were to be developed, tested and modified by this study. METHOD: prospective inclusion of all patients admitted for investigation of LLOAD to nine hospitals by 19 surgeons over a period of 12 months. RESULTS: the hospitals admitted an average of 106 legs per 100 000 population (range 53-149) with LLOAD. Legs with IC (n=1351) were revascularised slightly less frequently than predicted (actual 76%, guideline 80%) and radiological treatment was used more frequently than predicted (radiology/surgery, actual 69/32%, guideline 40/60%). For limbs with CLI, revascularisation was undertaken more often (actual 70%, guideline 60%) and radiological intervention used more frequently (radiology/surgery, actual 45/58%, guideline 35/65%) than anticipated. Primary amputation, overall mortality and limb salvage were better than the predicted guidelines. CONCLUSION: large variations in workloads and clinical practice were observed between hospitals for the management of LLOAD. Developing guidelines for the management of limbs with IC was not considered appropriate, whereas suitable guidelines for legs with CLI were developed, tested and modified.     

Predictors for acute and chronic pouchitis following restorative proctocolectomy for ulcerative colitis

Objective  This study was undertaken to evaluate the cumulative incidence, onset and risk predicting factors for acute and chronic pouchitis. Method  A consecutive series of patients (n = 210), who underwent restorative proctocolectomy (RPC) and had a minimum follow‐up of 12 months was reviewed. The cumulative incidence and onset of pouchitis was determined. Univariate analysis, followed by logistic regression analysis was used to evaluate the association of various demographic, clinical and histopathologic variables with the subsequent development of acute and chronic pouchitis. Results  A total of 198 patients were included. The mean follow‐up was 64 months (range, 12–180). Sixty‐four patients (32%) developed pouchitis, 35 acute and 29 chronic. The first episode of pouchitis occurred within the first year in 70% of cases. The presence of backwash ileitis (OR, 2.6; P = 0.015), primary sclerosing cholangitis (PSC; OR, 2; P = 0.018) and the duration of follow‐up (OR, 1.1; P = 0.043) were associated with a higher incidence of pouchitis. The duration of follow‐up was the only variable associated with acute pouchitis (P = 0.007). The presence of backwash ileitis and PSC were independent risk factors for chronic pouchitis (OR, 5.9; P < 0.001; OR, 2.8; P = 0.001 respectively). Conclusion  Pouchitis is a heterogeneous disease which tends to occur early after restoration of gastrointestinal continuity. Patients with backwash ileitis and/or PSC are at considerable risk of developing chronic pouchitis. The strong association between backwash ileitis, PSC and chronic pouchitis suggests a common link in their pathogenesis.     

Excretory urography with iohexol: evaluation in children

A multicenter clinical study was conducted using iohexol, a second-generation nonionic contrast medium, for excretory urography performed in 130 children. Doses of iohexol (300 mg iodine/ml) ranged between 150 and 660 mgI/kg (0.5 and 2.2 ml/kg). Iohexol was tolerated well, and no significant adverse reactions occurred. Sixty-five iohexol urograms were evaluated to determine the minimum dose for adequate visualization of the kidneys and collecting systems. A dose greater than 300 mgI/kg (1.0 ml/kg) always resulted in a urogram of diagnostic quality, while visualization was insufficient for diagnosis in 10% of studies done with doses of 150-300 mgI/kg (0.5-1.0 ml/kg). Another 65 iohexol urograms were compared in a blinded manner with a similar number of studies performed using iothalamate meglumine at comparable iodine concentration and dose. Visualization of calyces and pelvoinfundibular structures achieved with iohexol was rated better with statistical significance, but there was no difference in visualization of the renal parenchyma or ureters. Use of iohexol in excretory urography may be advantageous in children who are at greatest risk for an adverse reaction to contrast media or in those most likely to benefit from use of a low osmolality contrast agent.     

Pediatric patients with achondroplasia: CT evaluation of the craniocervical junction

Twenty-six patients (4 months to 6 years old) with achondroplasia complicated by sleep apnea and/or other neurologic manifestations underwent plain computed tomography (CT) of the craniocervical junction; six also underwent CT myelography. For objectification, multiplanar reconstruction was used to complement axial plane measurements by providing coronal and sagittal measurements; multiplanar reconstruction also improved perception of the longitudinal relationships between the brain stem and subarachnoid space. A narrow subarachnoid space was found in all 26 patients; marked cord compression was present in nine, six of whom underwent CT myelography. These six had marked focal obliteration of the subarachnoid space on both plain CT and CT myelography. Since the subarachnoid space immediately above and below the craniocervical junction is normally capacious, when marked constriction was present, no additional information could have been gained from CT myelography. Thus, plain CT was shown to be sufficient for surgical planning (suboccipital decompression) in nine patients with cord compression due to achondroplasia.