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21.
A Halldorsson G C Hunter K E McIntyre V M Bernhard 《The Journal of cardiovascular surgery》1991,32(3):376-379
We have recently treated a patient with an arteriovenous fistula that developed after a right internal jugular vein catheterization. The patient was found to have a pulsatile hematoma and a bruit five days after removal of a temporary pacemaker catheter. Digital subtraction arteriography documented a fistula between the right internal mammary artery and subclavian vein. The fistula was surgically repaired via the cervical route. To our knowledge, an arteriovenous fistula between the internal mammary artery and subclavian vein has not been previously described as a complication of a percutaneous internal jugular vein catheterization. 相似文献
22.
By the end of 1990, 51 symptomatic children with perinatally acquired HIV infection had been admitted to Baragwanath Hospital. Of 42 children who were followed up for at least 3 months, 15 (35.7%) died and 16 (38.1%) were lost to follow-up. The case fatality rate for these children lies between 35.7% and 73.8%. Most children became symptomatic before the age of 6 months and presenting features seen in over 70% of cases included lymphadenopathy, failure to thrive and hepatomegaly. Surviving children had recurrent admissions to hospital, predominantly for respiratory distress. Many had bacterial pneumonias. Cardiac involvement (cardiomyopathy and cor pulmonale), recurrent serious bacterial infections and neurodevelopmental abnormalities were common. Our experience confirms that vertically acquired HIV infection has a relatively short incubation period and progresses rapidly with cardiorespiratory symptoms predominating. Five HIV seroprevalence studies have been conducted in pregnant women attending Baragwanath Hospital and the Soweto clinics since 1988. The calculated doubling time is between 7 and 21 months. At the end of 1990 the HIV seroprevalence rate in pregnant women was 0.82% (95% confidence limits 0.44-1.19%). 相似文献
23.
Timing of carotid endarterectomy after acute stroke 总被引:2,自引:0,他引:2
J J Piotrowski V M Bernhard J R Rubin K E McIntyre J M Malone F N Parent G C Hunter 《Journal of vascular surgery》1990,11(1):45-51; discussion 51-2
An arbitrary delay of at least 6 weeks before performing carotid endarterectomy after acute stroke has been recommended based on anecdotal reports. This prolonged interval may increase the danger of recurrent neurologic deficit before surgery. From September 1978 to September 1988, carotid endarterectomy was performed on 140 patients at variable intervals after stroke. Eleven patients had temporary stroke, which left 129 patients with neurologic symptoms that persisted for 3 weeks or had a cortical infarct on CT scanning. A prospective therapeutic protocol was applied to 82 patients admitted with acute stroke. They were observed until neurologic recovery reached a plateau, based on clinical observation by a neurologist, before performing angiography and carotid endarterectomy (group I). Forty-seven patients were not seen until after recovery from stroke was established (group II). At initial presentation, the severity of neurologic deficit was classified as mild, moderate, or severe in 31%, 58%, and 11%, respectively. Recovery before operation was registered as complete in 11%, mild residual in 66%, moderate residual in 21%, and severe residual in 2%. Group I patients (n = 82, 64%) were operated on within 6 weeks of stroke and group II (n = 47, 36%) were operated on at varying times after 6 weeks. No significant difference was found in the incidence of cerebrovascular events (1.2% vs 4.2%) and deaths (1.3% vs 2.1%) between groups I and II with respect to the timing of carotid endarterectomy, and no significant difference was found between patients operated on at 2, 4, 6, or more than 6 weeks after stroke.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
24.
Lynn McIntyre Edwin G. Belzer Lise Manchester Wade Blanchard Suzanne Officer A. Catherine Simpson 《The Journal of school health》1996,66(3):132-137
ABSTRACT: The Dartmouth Health Promotion Study was a longitudinal, quasi-experimental field study with a qualitative research arm, designed to learn whether coordinating school health instruction, health services, and a healthful environment enhanced the program's effect on the heart health and mental health of children. The research strategy — the Coordinated Approach — was applied to approximately 300 children in each of two cohorts in grades four to six attending nine trial schools; a further 600 children attended 10 comparison schools in Dartmouth and nine distal comparison schools. Although the qualitative analysis demonstrated that positive feelings were engendered in most areas of the study, when either the classroom or the individual was used as the unit of analysis, the Coordinated Approach did not have a more favorable effect on the heart or mental health of children than did the standard school health program. Thus, the effect of an existing school health program was not directly enhanced through coordinating its components. 相似文献
25.
Anderson RA; Evans LW; Irvine DS; McIntyre MA; Groome NP; Riley SC 《Human reproduction (Oxford, England)》1998,13(12):3319-3325
Follistatin is a binding protein for the activin and inhibin family of
hormones, regulating their biological activity. In the male reproductive
tract, the interaction of these factors is likely to be involved in the
regulation of the proliferation of several cell types. We have investigated
the presence of follistatin and activin A in seminal plasma using specific
immunoassays and have localized follistatin and activin/inhibin subunits in
the adult human testis, prostate and seminal vesicle to establish their
likely sources. High concentrations of immunoreactive follistatin were
present in seminal plasma in normal men (mean 97.9 ng/ml; 1.43 ng/ml in
peripheral plasma) and were similar in men with oligo/azoospermia and
following vasectomy. Follistatin immunoreactivity was localized to both
Leydig and Sertoli cells of the testis, and to epithelial cells of the
prostate gland and seminal vesicle, which are likely to be the predominant
sources of the hormone in seminal plasma. Activin A was also present in
seminal plasma in normal men but was undetectable following vasectomy, thus
deriving from the testis. Consistent with this finding, the betaA-subunit
was immunolocalized in Sertoli and Leydig cells but was not present in
seminal vesicle or prostate gland. The functional significance of the high
concentrations of follistatin secreted into seminal plasma by the prostate
gland and/or seminal vesicle is uncertain, but they may regulate the
biological activity of testis-derived activin A and inhibin B.
相似文献
26.
The diagnosis and management of ascites related to liver diseases is discussed. We emphasize that although treating ascites improves the symptoms, it does not influence prognosis, whereas injudicious treatment may cause life-threatening side effects. 相似文献
27.
Tarsometatarsal joint: anatomic details on MR images 总被引:3,自引:0,他引:3
28.
Dr. James G. Jarvis Aaron Marlow Louis J. Lawton William M. J. McIntyre 《Operative Orthopadie und Traumatologie》1998,10(2):117-124
Zusammenfassung
Operationsziel überdachung des Femurkopfes bei Hüftgelenkdysplasie.
Indikationen Dysplastisches Acetabulum bei Patienten mit neuromuskul?ren und nichtneuromuskul?ren Erkrankungen.
übergro?es, flaches Acetabulum.
Fehlen einer lateralen und kranialen überdachung.
Kontraindikationen Y-Fuge geschlossen, Wachstum abgeschlossen.
Stark verformter Femurkopf.
Operationstechnik Modifizierter Zugang nach Salter/Smith-Petersen. Freilegung und Teilung der Apophyse des Beckenkammes mit einem Messer. Freilegung
der Darmbeinschaufel. Osteotomie der ?u?eren Wand des Iliums; sie wird vorsichtig mit Hilfe eines gebogenen mei?els nach unten
gebogen und in dieser Stellung durch Einsetzen von trikortikalen Beckenkammsp?nen gehalten. Eine Osteosynthese ist nicht notwendig.
Becken-Bein-Gipsverband mit Einschlu? des gegenseitigen Oberschenkels für sechs Wochen.
Ergebnisse Zwischen 1987 und 1997 wurden 26 Hüften von 23 Patienten operiert. überwiegend handelte es sich um Kinder mit spastischen
Paresen. Folgende zus?tzliche Eingriffe wurden vorgenommen: Offene Reposition zehnmal, Femurosteotomie 18mal und Tenotomien
sowie Muskelabl?sungen 15mal. Der Durchschnittswert des azetabul?ren Index verbesserte sich von 32° auf 22°, der durchschnittliche
Wert des Kopfzentrum-Pfannenrand-Winkels von −25° auf 22° und der durchschnittliche Migrationsindex von 62% auf 69%. Als Komplikationen
wurden beobachtet: eine erneute Subluxation, ein frühzeitiger Verschlu? des Y-Knorpels, eine Fraktur des anderen Femur, einmal
heterotope Ossifikationen und einmal eine Infektion der Harnwege. 相似文献
29.
The effect of nitroglycerin on response to tracheal intubation. Assessment by radionuclide angiography 总被引:1,自引:0,他引:1
A P Hart E M Camporesi T L Sell N Croughwell R Silva R H Jones R W McIntyre T E Stanley J G Reves 《Anesthesia and analgesia》1989,68(6):718-723
The effect of intravenous (IV) nitroglycerin (NTG) on perioperative myocardial ischemia as detected by single pass radionuclide angiocardiography was studied in 20 patients scheduled for elective coronary artery bypass grafting (CABG). Ten patients, selected at random, received IV NTG 1 microgram.kg-1.min-1 (NTG group) and 10 others, IV saline (control group). Anesthetic induction consisted of midazolam 0.2 mg.kg-1, vecuronium 0.1 mg.kg-1, and 50% N2O in O2. ECG leads I, II, and V5 were monitored for ST segment changes. Single pass radionuclide angiocardiography (RNA) was performed at 5 times: prior to induction, prior to tracheal intubation, and at 1, 3.5, and 6 min following intubation. The presence of new regional wall motion abnormalities (RWMA) was determined from each RNA study as compared with the preinduction measurement. Apart from one patient in the control group who developed a new "v" wave after intubation, there was no evidence of ischemia by pulmonary capillary wedge pressure. No ECG evidence of ischemia was detected in any patient. Despite this, new regional wall motion abnormalities were observed in 3 patients in the control group and 1 patient in the NTG group. Blood pressure and heart rate responses of patients with new RWMA were not significantly different from other patients. The low incidence of ischemia in this population precludes a definitive statement regarding the efficacy of IV NTG, but the lower incidence of RWMA in the NTG group suggests a protective effect. 相似文献
30.
The nociceptive flexion reflex is inhibited during systole; this inhibition may be due to increased baroreceptor stimulation. It is yet to be determined whether other spinal reflexes are similarly modulated across the cardiac cycle. There is also evidence that stretch and tendon reflexes are facilitated by increased arousal. This study investigated the effects of phase of the cardiac cycle and arousal on the muscle stretch reflex components M1, M2, and M3. Stretch reflexes were elicited in leg muscles at six intervals across the cardiac cycle during rest, number repetition, and mental arithmetic. Mental arithmetic provoked increased cardiovascular arousal and facilitated both M1 and M2 compared to rest and number repetition. The stretch reflex did not vary with the phase of the cardiac cycle. While the stretch reflex is susceptible to arousal, natural baroreceptor-mediated modulation across the cardiac cycle may be specific to nociception. 相似文献