Spencer Trotter

Wexham Park Hospital

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i-10 index

Research Field

Myocardial bridges: morphological and functional aspects.

Heart (1991)

Adelmo Ferreira Spencer Trotter Bruno König Luiz V. Décourt K. Fox

To assess the arrangement of myocardial bridges.A necropsy study of 90 consecutive hearts (56 male, 34 female).Myocardial bridges, either single or multiple, were seen in 50 (55.6%) of the 90 hearts. The left anterior descending artery was the most commonly affected artery. Thirty five of the 50 hearts which contained in total 41 muscle bridges were dissected further with a magnifying glass. Two different types of muscle bridges could be identified. Thirty one of these 41 myocardial bridges were superficial, crossing the artery transversely towards the apex of the heart at an acute angle or perpendicularly. The remaining 10 myocardial bridges crossed the left anterior descending coronary artery and surrounded it by a muscle bundle that arose from the right ventricular apical trabeculae and crossed the artery transversely, obliquely, or helically before terminating in the interventricular septum.The superficial type of myocardial bridge does not seem to constrict the artery during systole but the deep muscle bridges, by virtue of their relation with the left anterior descending coronary artery, could twist the vessel and thus compromise its diastolic flow. This may result in ischaemia.

Myocardial bridge

Interventricular septum

Left coronary artery

Myocardial Bridging

10.1136/hrt.66.5.364

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Citations (305)

Effect of Environment in the Modification of the Bill and Tail of Birds

Proceedings of the Academy of Natural Sciences of Philadelphia (1891)

Spencer Trotter

Source

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Citations (5)

‘Krukenberg’ tumour of the testis

Histopathology (1989)

R J Zuk Spencer Trotter Suhail Baithun

Metastatic tumours are only rarely seen within the testis. We report a signet‐ring cell carcinoma of stomach metastasizing to a maldescended testis in a young male. The routes of spread are discussed and support is given to the theory of transperitoneal (transcoelemic) spread. The similarities with Krukenberg tumour of ovary are discussed.

Krukenberg tumor

Signet ring cell

10.1111/j.1365-2559.1989.tb02132.x

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Citations (14)

The Names "Purple Finch," "Mavis," and "Highole"

Ornithology (1912)

Spencer Trotter

Finch

10.2307/4071400

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Citations (1)

The Terminology of Anatomy

The Classical Weekly (1918)

Spencer Trotter

10.2307/4387604

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Citations (0)

The Geological and Geographical Relations of the Land-Bird Fauna of Northeastern America

Ornithology (1909)

Spencer Trotter

The antiquity of existing faunas is a problem beset with diffi¬ culties and involved in obscurity.One who fares forth in this quest will find few landmarks to serve him as a guide.No evi¬ dence from fossil remains is forthcoming, for the deposits in which recent animals have been buried are as yet incoherent muds and silt, often beneath the waters of lakes and swamps and tidal inlets.The remains of mammals and reptiles may thus have been accumulating in many places over long periods of time, since the beginning, at least, of post-glacial conditions.Undoubtedly the soils of old forest floors and peat bogs and the mud of lake bottoms contain a vast number of such remains, but it is altogether unlikely that among these is any large proportion of the more fragile skele¬ tons of birds.Even if they were preserved these remains, like those of other creatures, would still be in inaccessible situations.The clew to this history of faunas is to be looked for rather in the distribution of living forms as we find them to-day; to facts re¬ lating to the alteration of habitats, the invasion of new territory by certain species, the recession from territory once occupied, and the dominance and variety of forms of particular genera in various localities.

10.2307/4070794

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Citations (4)

An Inquiry into the History of the Current English Names of North American Land Birds

Ornithology (1909)

Spencer Trotter

10.2307/4071268

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Citations (5)

Notes on the Ornithological Observations of Peter Kalm

Ornithology (1903)

Spencer Trotter

A PECULIAR interest lends itself to pioneer work in any branch of knowledge, and the early history of things holds a charm that is hard to explain on purely logical grounds.Such an interest gathers about the work of Peter Kalm, the Swede, who travelled in North America during the years 1748-175 1. Kalm was primarily a botanist and was sent out to America to gather specimens of plants and seeds with a view to the acclimatization of different species in Sweden.On his return to Sweden he published an account of his observations and travels in a work of three volumes entitled ' En Resa Til Norra America,' which appeared at Stockholm between the years 17 53-1 761.The original was later translated into English, German, and Dutch, the English translation by John Reinhold Forster appearing in three volumes under the title of ' Travels into North America,' published at London in 1770-177 1. Forster was an English naturalist of some note and his name is commemorated in one of the beautiful species of

Ornithology

10.2307/4069787

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Citations (1)

Concerning the Real Unicorn

Science (1908)

Spencer Trotter

Article MetricsDownloadsCitationsNo data available.01JunJulAugSepOctNov30Total6 Months12 MonthsTotal number of downloads for the most recent 6 whole calendar months.

Unicorn

10.1126/science.28.722.608

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Citations (0)

Present Industries Within the Louisiana Purchase

Journal of Geography (1904)

Spencer Trotter

10.1080/00221340408985513

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Citations (0)