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1.
A functional and clinical reinterpretation of human perineal neuromuscular anatomy: Application to sexual function and continence
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JEFFREY H. PLOCHOCKI JOSE R. RODRIGUEZ‐SOSA BRENT ADRIAN SAUL A. RUIZ MARGARET I. HALL 《Clinical anatomy (New York, N.Y.)》2016,29(8):1053-1058
Modern anatomical and surgical references illustrate perineal muscles all innervated by branches of the pudendal nerve but still organized into anatomically distinct urogenital and anal triangles with muscles inserting onto a central perineal body. However, these conflict with the anatomy commonly encountered during dissection. We used dissections of 43 human cadavers to characterize the anatomical organization of the human perineum and compare our findings to standard references. We found bulbospongiosus and the superficial portion of the external anal sphincter (EAS) were continuous anatomically with a common innervation in 92.3% of specimens. The superficial transverse perineal muscle inserted anterior and lateral to the midline, interdigitating with bulbospongiosus. The three EAS subdivisions were anatomically discontinuous. Additionally, in 89.2% of our sample the inferior rectal nerve emerged as a branch of S3 and S4 distinct from the pudendal nerve and innervated only the subcutaneous EAS. Branches of the perineal nerve innervated bulbospongiosus and the superficial EAS and nerve to levator ani innervated the deep EAS. In conclusion, we empirically demonstrate important and clinically relevant differences with perineal anatomy commonly described in standard texts. First, independent innervation to the three portions of EAS suggests the potential for functional independence. Second, neuromuscular continuity between bulbospongiosus and superficial EAS suggests the possibility of shared or overlapping function of the urogenital and anal triangles. Clin. Anat. 29:1053–1058, 2016. © 2016 Wiley Periodicals, Inc. 相似文献
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Breast-feeding, gastrointestinal and lower respiratory illness in the first two years 总被引:3,自引:0,他引:3
DAVID M. FERGUSSON L. JOHN HORWOOD FREDERICK T. SHANNON BRENT TAYLOR 《Journal of paediatrics and child health》1981,17(3):191-195
ABSTRACT. The relationships between breast-feeding practices and the rates of gastro-intestinal and lower respiratory illness during the first two years of life were examined for a birth cohort of New Zealand infants. During the first four months, there were significant tendencies for rates of gastro-intestinal illness to decrease with increasing duration of breast feeding. These trends remained significant when the effects of a number of social and familial factors were taken into account. There was no association between duration of breast-feeding and rates of gastro-intestinal illness beyond four months. Prolonged breast-feeding was associated with significantly lower rates of lower respiratory illness during both the first and second years. However, when the effects of social and familial factors were taken into account the apparent associations between duration of breast-feeding and rates of lower respiratory illness became non-significant. The implications of these findings are discussed. 相似文献
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The Implantable Neurocybernetic Prosthesis System 总被引:3,自引:0,他引:3
REESE S. TERRY W. BRENT TARVER JACOB ZABARA 《Pacing and clinical electrophysiology : PACE》1991,14(1):86-93
The neurocybernetic prosthesis system (NCP) is an implantable, multiprogrammable pulse generator that delivers constant current electrical signals to the vagus nerve for the purpose of reducing the frequency and severity of epileptic seizures. The signals are delivered on a predetermined schedule, or may be initiated by the patient with an external magnet. The device is implanted in a subcutaneous pocket in the chest just below the clavicle, similar to pacemaker placement. The stimulation signal is transmitted from the prosthesis to the vagus nerve through a lead connected to an electrode which is a multi-turn silicone helix, with a platinum band on the inner turn of one helix. The prosthesis can be programmed with any IBM- compatible personal computer using NCP software and a programming wand. 相似文献
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JOHN T.Y. HII D. GEORGE WYSE ANNE M. GILLIS JAMES M. COHEN L. BRENT MITCHELL 《Pacing and clinical electrophysiology : PACE》1991,14(11):1568-1570
A 77-year-oid/emale with new onset atrial fibrillation occurring in the absence of structural heart disease developed torsade de pointes during therapy with quinidine bisulfate 500 mg orally every 8 hours. Ten days after quinidine therapy had been discontinued she developed torsade de pointes while receiving propafenone 300 mg orally every 8 hours. This case demonstrates that propafenone may be associated with torsade de pointes and suggests a cross-reactivity between this effect and prior occurrence of torsade de pointes on Class IA antiarrhythmic drug therapy. 相似文献
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Is epidermal cell proliferation in psoriatic skin grafts on nude mice driven by T-cell derived cytokines? 总被引:6,自引:0,他引:6
B.S. BAKER † L. BRENT H. VALDIMARSSON § A.V. POWLES † L. AL-IMARA M. WALKER‡ L. FRY† 《The British journal of dermatology》1992,126(2):105-110
Plasminogen activity and DNA synthesis by epidermal cells have been reported to be doubled in psoriatic skin grafts compared with grafts of normal skin 6 weeks after transplantation to nude mice. In our study human lymphocytes disappeared from such grafts within 48 h whilst some DR-positive human dendritic cells were retained in the grafts for up to 4 weeks. However, the grafts were infiltrated by Thy 1.2+ mouse lymphocytes within 6 days and this infiltration persisted at a moderate level throughout the observation period. It consisted of perivascular aggregates, scattered dermal and papillary T cells, and some mouse T cells were also found in the epidermal compartment. Grafts of psoriatic and non-psoriatic control skin were infiltrated to a similar extent, suggesting a low-grade rejection response against the human xenografts. These findings raise the possibility that psoriatic keratinocytes are responding abnormally to inflammatory cytokines released by mouse lymphocytes reacting against the skin grafts. 相似文献
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T. JARED BUNCH M.D. † BRIAN G. CRANDALL M.D. † J. PETER WEISS † HEIDI T. MAY M.S.P.H. Ph .D.† TAMI L. BAIR† JEFFREY S. OSBORN M.D. † JEFFREY L. ANDERSON M.D. † DONALD L. LAPPE M.D. † J. BRENT MUHLESTEIN M.D. † JENNIFER NELSON † SCOTT ALLISON † THOMAS FOLEY † LARS ANDERSON † JOHN D. DAY M.D. † 《Journal of cardiovascular electrophysiology》2009,20(9):988-993
Background: The recently published HRS/EHRA/ECAS AF Ablation Consensus Statement recommended that warfarin should be used for at least 2 months following an AF ablation in all patients regardless of stroke risk factors. The objective of the study was to assess outcomes based upon anticoagulation practice after atrial fibrillation (AF) ablation to determine relative risk of a strategy of aspirin only in low-risk patients.
Methods: A total of 630 consecutive patients who underwent 934 ablation procedures using an open irrigated tip catheter for symptomatic AF were evaluated. Outcomes were compared between patients treated with warfarin (goal INR: 2–3) versus aspirin only (325 mg/day) in CHADS2 0–1 patients after ablation.
Results: Of the 690 patients, 123 (20%) were treated with aspirin and 507 (80%) with warfarin. Prevalences of the CHADS2 scores of patients on aspirin were (0: 40.7%, 1: 59.3%) and on warfarin (0: 13.6%, 1: 31.6%, ≥2: 54.8%), P < 0.0001. Patients in the warfarin group were older, had on average a lower ejection fraction, and had higher rates persistent/permanent AF, repeat ablations, hypertension, prior stroke/TIA, and diabetes. The 1-year survival free of AF for the total study population was 71.6%. There were no strokes/TIA in the aspirin group and 4 events (4 strokes, 0 TIAs) in the warfarin group. Two patients in the warfarin group died of fatal hemorrhage (1 intracranial, 1 gastrointestinal).
Conclusion: Select low-risk patients with a low CHADS2 (0–1) score who undergo left atrial ablation with an aggressive anticoagulation strategy with heparin and use of an open irrigated tip catheter with low CHADS2 scores can safely be discharged following their procedure on aspirin alone. 相似文献
Methods: A total of 630 consecutive patients who underwent 934 ablation procedures using an open irrigated tip catheter for symptomatic AF were evaluated. Outcomes were compared between patients treated with warfarin (goal INR: 2–3) versus aspirin only (325 mg/day) in CHADS2 0–1 patients after ablation.
Results: Of the 690 patients, 123 (20%) were treated with aspirin and 507 (80%) with warfarin. Prevalences of the CHADS2 scores of patients on aspirin were (0: 40.7%, 1: 59.3%) and on warfarin (0: 13.6%, 1: 31.6%, ≥2: 54.8%), P < 0.0001. Patients in the warfarin group were older, had on average a lower ejection fraction, and had higher rates persistent/permanent AF, repeat ablations, hypertension, prior stroke/TIA, and diabetes. The 1-year survival free of AF for the total study population was 71.6%. There were no strokes/TIA in the aspirin group and 4 events (4 strokes, 0 TIAs) in the warfarin group. Two patients in the warfarin group died of fatal hemorrhage (1 intracranial, 1 gastrointestinal).
Conclusion: Select low-risk patients with a low CHADS2 (0–1) score who undergo left atrial ablation with an aggressive anticoagulation strategy with heparin and use of an open irrigated tip catheter with low CHADS2 scores can safely be discharged following their procedure on aspirin alone. 相似文献