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Biomedical subjects

A Marcovich

Publications and source records attributed to A Marcovich.

9 recordsLinked to original sources
PubMed1997

Development of exudative age-related macular degeneration after cataract surgery.

The macular status of patients with findings consistent with early dry age-related macular degeneration (AMD) who underwent an extracapsular cataract extraction with intraocular lens implantation was evaluated by fundoscopy and fluorescein angiography pre-operatively and during the first post-operative year. Five patients who developed the exudative form of AMD, and who represent the problems arising when treating patients with AMD and cataract, are described. Patients who received laser photocoagulation responded with recurrent choroidal neovascularisation. We suggest that patients with signs of age-related changes scheduled for cataract surgery should undergo a thorough pre- and post-operative assessment of their retinal status.

Aged↗
PubMed1996

Age-related macular degeneration after extracapsular cataract extraction with intraocular lens implantation.

PURPOSE: To evaluate the course of age-related maculopathy after cataract surgery. METHODS: Included were 47 patients with bilateral, symmetric, early age-related macular degeneration (AMD), documented by fluorescein angiography, who underwent extracapsular cataract extraction with intraocular lens implantation in one eye. The fellow eye served as the control. The patients were retrospectively reviewed or prospectively followed. RESULTS: Wet AMD developed in nine eyes (19.1%) that were treated with surgery compared with two fellow eyes (4.3%). It was detected within 3 months of surgery in four (44.4%) of the nine affected eyes and within 6 to 12 months of surgery in four other eyes (44.4%). Progression to wet AMD occurred significantly more often in men than in women (P < 0.05). Soft drusen were found as a significant ocular risk factor (P < 0.05). The final visual outcome was poor in all eyes with such progression. CONCLUSIONS: In this study, progression of AMD occurred more often in the surgical eyes compared with the fellow eyes. However, the reasons for the progression of AMD after cataract surgery are still uncertain. Further prospective studies are needed to investigate this observation.

Aged↗
PubMed1984

Rotary-door flap in laryngotracheal reconstruction.

A newly described vascularized myocutaneous flap based on the infrahyoid muscles is presented. The blood supply originating at the superior and inferior thyroid arteries is preserved. This flap is rotated axially, 180 degrees, to augment and resurface the lumen of the stenosed airway. Stenting is achieved by means of a silicone T tube topped by a custom-carved laryngeal stent. Hyoid transposition may be included when required. We successfully reconstructed 15 cases of laryngotracheal stenosis by this method. The regional flap provides a dependable, readily applicable technique for reconstruction of difficult laryngotracheal stenoses.

Adolescent↗
PubMed1984

Arterial blood supply to the infrahyoid muscles: an anatomical study.

The arterial supply to the infrahyoid strap muscles originating from the superior thyroid artery (STA), the inferior thyroid artery (ITA), and the internal mammary artery (IMA), also called the internal thoracic artery, were investigated. Intraarterial silicone dye was injected into eight fresh cadavers followed by dissections. The blood supply to the infrahyoid muscles was found to be segmented in nature with the dividing line at the level of the cricoid ring. No axial pattern of vascularization could be demonstrated within the strap muscles. The skin overlying these muscles is supplied by tributaries arising from the above-described arteries. Application of the information gathered is discussed in consideration of local myocutaneous and myoosseous flaps for reconstructive surgery, particularly of the larynx and trachea.

Arteries↗
PubMed1984

Blood supply and innervation of the supermedial thigh flap employed in one-stage reconstruction of the scrotum and vulva--an anatomical study.

The supermedial thigh flap is an arterial and sensate flap. Anatomical studies reveal both large and small nutrient arteries. Its largest and most consistent artery is the superficial branch of the deep external pudendal artery, which constitutes the main circulation. The secondary blood supply to the base of the flaps is contributed by musculocutaneous perforators of the medial circumflex femoral artery. Subcutaneous branches of the superficial femoral artery, when present, are an additional source of arterial supply. Branches of the ilioinguinal nerve provide sensory innervation to the flaps.

Arteries↗
PubMed1984

[The medical system and social ideology. Construction of a moral logic and body of thought in the 18th century].

This article proposes an historical case study of the relationships between a body of medical knowledge and the social and political concerns of the period in which it developed. The analysis of the writings of J.C. Lettsom (1744-1815), a Quaker physician, and famous practitioner of London, demonstrates that very narrow links exist between his medical conceptions on the human body and his conceptions on the organisation and the functioning of the "social body". Such notions as freedom, equilibrium, circulation, interdependence, sensitivity and mutual sympathy are shown to structurate Lettsom's discourse on the human body and the social body. It is suggested that such relationships can be deciphered in other contexts as recent works in social history of medicine and in ethno-medicine tend to make it evident.

England↗