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Query: UMLS:C0033377 (prolapse)
 11,717 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Echocardiogram analysis is treated in a pattern recognition framework. Anterior mitral leaflet waveforms are classified for the four-class problem consisting of the classes "normal," "mitral stenosis," "mitral valve prolapse," and "idiopathic hypertrophic subaortic stenosis." In addition, aortic root waveforms and left ventricular wall waveforms are classified for the two-class problem consisting of the classes "normal" and "idiopathic hypertrophic subaortic stenosis." One common method of analysis (Fourier analysis) underlies each classification scheme. Classification accuracy is sufficiently good to warrant the inference that successful automated decision-making based on the algorithms investigated is feasible.
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PMID:Echocardiogram analysis in a pattern recognition framework. 57 69

The fourth lumbar vertebrae and L4-5 discs from six cadaveric lumbar spines were subjected to detailed strain gauge analysis under conditions of controlled loading. With central compression loads, maximal compressive strain was found to occur near the bases of the pedicles and on both superficial and deep surfaces of the pars interarticularis, which emphasises the importance of the posterior elements of lumbar vertebrae in transmitting load. Radial bulge and tangential strain of the disc wall were maximal at the posterolateral surface, in agreement with the fact that disc degeneration and prolapse commonly occur there. Under posterior offset loads simulating extension, both compressive and tensile strains were found to be increased on both surfaces of the pars interarticularis, which suggests that hyperextension may lead to stress fractures and spondylolisthesis. Posterior offset loads also increased the radial bulge of the posterior disc wall and tangential strain at the anterior surface of the disc. Anterior offset loads simulating flexion increased the radial bulge of the anterior disc wall and tangential strain at the posterior surface of the disc. These findings are compatible with movement of the nucleus pulposus within the disc during flexion and extension. This hypothesis was supported by post-mortem discography.
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PMID:The distribution of surface strain in the cadaveric lumbar spine. 65 74

In a review of the effect of gynecological operations on sexual function, difficulties resulting from operative technique and from psychological side effects were discussed. In repair of prolapse of the vagina, operative technique has been considered of crucial importance in influencing the sexual life of the patient. Preoperative clinical assessment rarely gives an accurate picture but can prepare the operator for some unforeseen difficulties. Patients with recurrent prolapse may have to sacrifice a functional vagina in the interest of surgical cure. However, the patient's views on coitus must be sought before surgery. Vaginal hysterectomy as an alternative to abdominal surgery can result in a rapid return to normal sexual function. Anterior colporrhaphy, the most commonly performed prolapse repair, may narrow the vagina from a too wide excision of vaginal epithelium. Some degree of shortening was thought to be almost invariable. Posterior colpoperineorrhaphy has been the major cause of vaginal stenosis after prolapse repair. The operation should be avoided but a technique by Simmons avoids the useless skin bridge, the main cause of postoperative dyspareunia. In anticipation of continuing postmenopausal atrophy, undue tightening of the vagina should be avoided. Sexual difficulties resulting from episiotomy frequently result from inaccuracy of siting and repair in favor of speed and dispatch. However, some postpartum difficulties in return to sexual function can result from emotional factors. Relief from postoperative contracture after vaginal operations may be obtained by several means including William's operation for vaginal atresia. Other gynecological procedures were considered outside the scope of this article. Therapeutic abortion and sterilization represent a different kind of operation because of emotional impact. However, it is suggested that many sexual problems are the result of poor preoperative explanation and postoperative instructions.
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PMID:Sexual life after gynaecological operations--II. 113 77

Mandibular fractures are frequent lesions which are classified into 6 groups according to the site of the fracture. Condylar fractures are primarily due to a direct blow to the symphysis menti. Medical imaging must be able to identify the type of fracture, its intra- or extra-articular site and the associated displacement of the condyle, the fundamental element in deciding treatment. The action of the masticatory muscles on one of the bone fragments may be responsible for an unstable fracture, leading to disturbances of consolidation (pseudarthrosis). Anterior bilateral fractures can be life-threatening due to ptosis of the tongue.
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PMID:[Subcondylar mandibular fracture]. 164 27

The authors propose a new technique for the surgical treatment of uterine prolapse. The technique consists of placing the myometrium between the bladder and the vagina after amputation of the cervix uteri and total excision of the endometrium. The bladder is then supported by a strong and well vascularized muscular tissue. Anterior transposition of the cervical pedicles and fixation of the myometrium to the anterior vagina ensure that the fitting is solid and in the correct direction. These modifications of the old technique of vesico-vaginal uterine interposition suppress the drawbacks which have gradually led to the rejection of the Wertheim-Schauta operation.
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PMID:[Surgical treatment of genital prolapse by vesicovaginal interposition of the myometrium]. 214 Nov 41

Intervertebral space calcification (ISC) is infrequent, it involves different levels of the spine. Anterior prolapse of the calcification at cervical level may get dysphagia, exceptional and transitory sign of the disease. "Crisis" of pain is a criteria of removing of calcification existing long time before its detection.
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PMID:[Dysphagia disclosing a cervical disk calcification in a child. Apropos of a case and review of the literature]. 226 52

Between February 1982 and March 1987, 50 adults underwent mitral valve repair for pure mitral insufficiency representing 54% of all adults having mitral valve surgery for pure mitral insufficiency. Ages ranged from 20 to 73 years (50.0 +/- 11.6). Anterior leaflet prolapse was present in 11, posterior leaflet prolapse in 26 and annulus dilation in 13. The mitral valve was repaired by quadrangular resection in 21, triangular resection in 2, plication without resection in 4, chordal shortening in 8 and annuloplasty alone in 15. Commissural annuloplasty was performed in addition to leaflet repair or chordal shortening in other 14 patients. The competence of the mitral valve was usually evaluated under beating conditions. 79% of the attempted repairs was considered successful in the posterior leaflet, contrasting to only 37% in the anterior leaflet. Prolapse of the anterior leaflet remains a surgical challenge. There were two early deaths (4%). During the follow up period (Mean 1.9 years, range 0.2-5.2 years), 2 late deaths (4%) were observed, one of them from thromboembolism, before adopting the policy of routinely anti-coagulating these patients during the first few months. 4 patients (9%), early in our experience, required reoperation within 4 months of surgery: two for severe mitral insufficiency and two for severe mechanical hemolysis. At reoperation, residual insufficiency was present in one, valve suture tear due to technical imperfection in two and complete disruption of the valve tissue at the suture line in one. Four additional patients had transient mechanical hemolysis requiring no specific therapy.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Repair of pure mitral insufficiency--experience in 50 patients]. 234 3

From 1984 to 1988, 129 mitral valve reconstructions were done for primary pure mitral regurgitation. Sixty-two (48%) were done for myxomatous degeneration and prolapse of the mitral valve. Anterior leaflet resection was performed in seven patients, posterior leaflet resection in 46, anteroposterior resection in four; five patients received only a ring annuloplasty. Eight patients had coronary bypass grafts. Twenty-four patients received a Carpentier-Edwards annuloplasty ring, 24 a Duran ring, and 14 patients had no ring. Follow-up was 1 to 50 months (mean, 13 months). No patient was lost to follow-up. There was one operative death from gastrointestinal bleeding and two late deaths (one from suicide and one from a myocardial infarction), and the probability of survival at 48 months was 84% +/- 15%. There were no thromboembolic episodes or episodes of endocarditis. However, there were five reoperations (9%) with freedom from reoperation at 48 months of 85% +/- 5%. There was one major anticoagulant hemorrhage. Freedom from all morbidity at 48 months was 81% +/- 8%. Postoperative echocardiographic data in the three different groups of patients undergoing repair on the basis of annuloplasty treatment showed that the peak gradient was less and the valve area was slightly greater with no annuloplasty ring.
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PMID:Mitral valve repair for myxomatous degeneration and prolapse of the mitral valve. 281 29

A technique is described for implantation of a posterior chamber intraocular lens during keratoplasty for bullous keratopathy when a large capsulotomy and vitreous prolapse are present. Seven cases of pseudophakic or aphakic bullous keratopathy with anterior chamber, iris-fixated, or no intraocular lens in place are reported. A completely intact posterior capsule is not necessary to support safely a sulcus-fixated posterior chamber lens. Anterior segment reconstruction, careful removal of existing intraocular lenses (except a posterior chamber lens), vitrectomy through the ruptured posterior capsule, and assessment of the remaining posterior capsule rim are important surgical objectives.
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PMID:Pseudophakic keratoplasty: posterior chamber lens implantation in the presence of ruptured capsule. 329 92

Anterior perineal anorectoplasty is a new technique for the repair of high imperforate anus. This technique allows direct access and clear visualization of the puborectalis sling and rectal pouch; division of the fistula and mobilization of the rectum can be precisely performed under direct vision, thereby reducing injury to surrounding structures; the pull-through of the rectum is readily facilitated; it obviates the need to change the position of the patient during the procedure; and mobilization of the rectum required to pull the rectum through is minimal, hence the late complication of mucosal prolapse is avoided. Details of the operative procedure are described herein.
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PMID:Anterior perineal anorectoplasty for intermediate and high imperforate anus. 330 76


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