| rule of outlet | An obstetric rule for determining whether the pelvic outlet will permit the passage of a foetus; the sum of the posterior sagittal diameter and the transverse diameter of the outlet must equal at least 15 cm if a normal-sized baby is to pass. (05 Mar 2000) |
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| plane of outlet | The lower opening of the true pelvis, bounded anteriorly by the pubic arch, laterally by the rami of the ischium and the sacrotuberous ligament on either side, and posteriorly by these ligaments and the tip of the coccyx. Synonym: apertura pelvis inferior, apertura pelvis minoris, fourth parallel pelvic plane, pelvic outlet, pelvic plane of outlet, plane of outlet. (05 Mar 2000) |
| conjugate diameter of pelvic outlet | The distance from the tip of the coccyx to the lower edge of the pubic symphysis. See: obstetric conjugate of pelvic outlet. Synonym: conjugate diameter of pelvic outlet. (05 Mar 2000) |
| conjugate of pelvic outlet | The distance from the tip of the coccyx to the lower edge of the pubic symphysis. See: obstetric conjugate of pelvic outlet. Synonym: conjugate diameter of pelvic outlet. (05 Mar 2000) |
| syndrome, thoracic outlet | Condition due to compromise of blood vessels or nerve fibres between the armpit (axilla) and base of the neck. (12 Dec 1998) |
| disputed neurogenic thoracic outlet syndrome | <syndrome> A highly controversial disorder in which the brachial plexus is reputedly repressed at one or more sites along its course, particularly within the interscalene triangle, and between the normal first thoracic rib and some other structures; frequently attributed to trauma (particularly automobile accidents, and most often diagnosed in young to middle-aged women; no characteristic clinical presentation, although forequarter pain is characteristic; no definite objective findings are present, and no undisputed ancillary diagnostic studies are available. (05 Mar 2000) |
| double outlet right ventricle | <cardiology, embryology> Incomplete transposition of the great vessels in which both the aorta and the pulmonary artery arise from the right ventricle, often associated with a subaortic ventricular septal defect. (12 Dec 1998) |
| obstetric conjugate of pelvic outlet | The conjugate of the pelvic outlet lengthened by the posterior displacement of the coccyx. (05 Mar 2000) |
| outlet | An exit or opening of a passageway. (05 Mar 2000) |
| outlet forceps delivery | Delivery by forceps applied to the foetal head when it has reached the perineal floor and is visible between contractions. (05 Mar 2000) |
| thoracic outlet syndrome | <syndrome> Condition due to compromise of blood vessels or nerve fibres between the armpit (axilla) and base of the neck. (12 Dec 1998) |
| true neurogenic thoracic outlet syndrome | <syndrome> Very chronic axon loss brachial plexopathy, caused by compromise of the lower trunk fibres by a congenital band extending from a rudimentary cervical rib to the first thoracic rib; rare disorder, found mostly in young to middle-aged women, that presents with unilateral hand wasting and weakness, particularly involving the lateral thenar eminence; sometimes accompanied by intermittent discomfort along the medial forearm and hand. Synonym: cervical rib and band syndrome, classic cervical rib syndrome. (05 Mar 2000) |