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61.
Analysis of the Effectiveness of In-Office and Transtelephonic Follow-Up in Terms of Pacemaker System Complications 总被引:1,自引:0,他引:1
MARK W. SWEESY STEVEN L. ERICKSON JUDY A. CRAGO KAREN N. CASTOR ROBERT L. BATEY RICHARD C. FORNEY 《Pacing and clinical electrophysiology : PACE》1994,17(11):2001-2003
A study was undertaken to determine the most effective method of pacemaker follow-up in terms of the total number of complications detected and yield per follow-up in single and dual chamber pacing systems. The analysis involved 9,786 patient records from 635 patients. The records were reviewed with respect to method of follow-up, number of chambers paced, and complications detected. Complications included: oversensing, undersensing, noncapture, pocket and diaphragmatic stimulation, pacemaker mediated tachycardia, crosstalk, pulse generator malfunction, lead malfunction, infection/erosion, premature end of service, exit block, and other miscellaneous problems. Eight thousand two hundred eighty-eight of the 9,786 follow-ups were performed in the office while 1,498 were transtelephonic. Single chamber pacing systems were implanted in 329 patients and 306 were dual chamber systems. A total of 599 complications were detected. Analysis yielded a per patient complication rate of 5.1 % (single chamber) and 8.4% (dual chamber) for in-office follow-up. This compared to a transtelephonic follow-up per patient complication rate of only 0.3% (single chamber) and 1.0% (dual chamber). In-office pacemaker follow-up is significantly more effective (P < 0.001) than transtelephonic follow-up in detecting both single and dual chamber pacemaker system complications. 相似文献
62.
63.
DAVIS R. WENDELL; CHRISTIAN RICHARD M.; ERVIN DONALD M.; YOUNG LAWRENCE E. 《Blood》1949,4(12):1361-1366
A case of megaloblastic anemia without specific neurologic complications in a6 year old girl is presented as an example of pernicious anemia in childhood despitethe fact that a small amount of free hydrochloric acid was present in the gastricjuice after injection of histamine. Prompt hematologic response was obtained following administration of refined liver extract, folic acid and vitamin B12 in successive relapses. 相似文献
64.
FRANKLIN L. ROSENFELDT RICHARD W. HARPER RONALD E. WALL JOHN B. UTHER ROWLEY HILDER† GILBERT C. SHARDEY 《Pacing and clinical electrophysiology : PACE》1984,7(6):985-992
An inexpensive display and timing unit incorporating a multichannel signal delay has been developed for mapping the heart during electrophysiological surgery. It provides a continuous digital readout of the time relationships between 3 introcardiac electrograms and the surface electrocordiogram. The electrograms are displayed on a storage oscilloscope with an automatic erase facility. This unit is used to locate accessory atriventricular connections in the Wolff-parkinson-White syndrome, to map ventricular tachycardias and to locate the bundle of His. The design has been refined during 5 years of use in over 200 operative procedures. 相似文献
65.
66.
RICHARD FOSTER GRAHAM STEVENS MATTHEW EGAN 《Journal of Medical Imaging and Radiation Oncology》1994,38(3):231-232
An unusual case of Merkel cell carcinoma is presented in which the time course to development of nodal and haematogenous metastases was protracted and the predominant site of metastatic disease was small bowel. 相似文献
67.
LINDSEY D. ALLAN DIANE C. CRAWFORD RICHARD SHERIDAN MICHAEL G. CHAPMAN 《BJOG : an international journal of obstetrics and gynaecology》1986,93(3):223-225
Summary. Forty-eight pregnancies, five of them multiple, were referred for fetal cardiac assessment following the detection of non-immune hydrops fetalis; there were 52 hydropic fetuses in total. A cardiovascular aetiology was found in 21 of these 52 (40%); structural heart disease was present in 13, tachyarrhythmia in the remaining eight. The accurate delineation of these causes was possible using fetal echo-cardiography, and enabled rational management to be instituted. This included termination of pregnancy, pharmacological control of arrhythmias and appropriate timing of delivery. 相似文献
68.
PETER A. GREENWOOD RICHARD J. LILFORD 《BJOG : an international journal of obstetrics and gynaecology》1986,93(3):260-263
Summary. One of the arguments used in favour of epidural analgesia for hypertensive patients in labour is its effect on mean arterial blood pressure, although the fetal and maternal risk from hypertension is more closely linked to maximum recorded levels. We have therefore assessed the effect of epidural analgesia on maximum blood pressure. There was no change in the maximum systolic or diastolic blood pressure after epidural analgesia when compared to baseline values or levels in untreated hypertensive controls. We conclude that this form of analgesia should be offered to hypertensive patients purely for its analgesic effect and not as a method for blood pressure control. 相似文献
69.
The presence of tinnitus in pregnancy was investigated by a postal questionnaire survey. A group of pregnant women attending the ante-natal clinic and a control group of non-pregnant members of the nursing staff at the Royal United Hospital in Bath were studied. The prevalence of tinnitus in the pregnant and non-pregnant women was compared. Both groups were similar in age, previous noise exposure and the presence of ear disease or operations. Twenty-five per cent of the pregnant women reported tinnitus compared with 11% of the control group. Chi-square analysis of this data gives a value of χ2= 4.07, d.f. = 1, P < 0.05. The result of our survey shows that there is a significantly increased prevalence of tinnitus in pregnant women compared with a similar non-pregnant control group. This association has not been previously reported. 相似文献
70.
JOHAN C. H. GENTZ RICHARD WARRNER BENGT E. H. PERSSON MARVIN CORNBLATH 《Acta paediatrica (Oslo, Norway : 1992)》1969,58(5):481-490
Blood glucose, plasma insulin, FFA and β-hydroxybutyrate values during intravenous glucose tolerance were reported in 20 small for gestational age (SGA) and 15 appropriate for gestational age (AGA) low birthweight infants. The babies were divided into three groups according to their age when tested; <24 hours, 24–48 hours and >48 hours. Both the SGA and AGA infants cleared glucose more rapidly with increasing age. The change was more marked in the SGA babies. The clearance rates were similar to those reported in normal full-sized infants. The insulin values before the glucose load were similar in all groups and comparable to those reported in normal newborn infants. The insulin response to glucose was variable. There were no significant differences with increasing age or between the two groups of infants. The insulin curve of the individual infant followed one of three patterns. Most commonly seen was a double-peak curve. The infants who showed a single-peak insulin response had a better but not significantly different glucose tolerance than that of the other babies. Infants with no appreciable insulin response still removed glucose from plasma at a rate similar to those with a double-peak insulin curve. It is concluded that insulin as measured in peripheral plasma could not explain the rate of removal of glucose from the plasma of the newborn low birthweight infant. Infants of low birthweight had higher plasma FFA values as compared to that reported in normal full term infants. The FFA values in SGA infants were higher than those in AGA babies. In both groups of infants, the jS-hydroxybutyrate values were comparable to those reported in normal full-term babies. Thus there was an unexpected discrepancy between the high FFA and relatively low β-hydroxybutyrate levels in plasma. The fall in plasma FFA and β-hydroxybutyrate after glucose was minimal but similar in both groups of infants. The findings are compatible with a decreased sensitivity to insulin in the infants studied. 相似文献