science

Heart-hand syndrome, Slovenian type

Heart-hand syndrome, Slovenian type is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Heart-hand syndrome, Slovenian type rather than just read about it. In short: Heart-hand syndrome, Slovenian type is a rare autosomal dominant genetic disorder belonging to the heart-hand syndromes. Signs and symptoms Individuals with this condition typically exhibit progressive heart conduction disease, tachycardia, arrhythmia, dilated cardiomyopathy which begins during a patient's adulthood and congenital (from birth) minor physical anomalies such as clinodactyly, syndactyly and brachydacty…

Key takeaways

Heart-hand syndrome, Slovenian type belongs to science; place it in that map before memorising details.
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Connect Heart-hand syndrome, Slovenian type to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Heart-hand syndrome, Slovenian type from memory before moving on to harder problems.

Reference excerpt

Heart-hand syndrome, Slovenian type is a rare autosomal dominant genetic disorder belonging to the heart-hand syndromes.

Signs and symptoms Individuals with this condition typically exhibit progressive heart conduction disease, tachycardia, arrhythmia, dilated cardiomyopathy which begins during a patient's adulthood and congenital (from birth) minor physical anomalies such as clinodactyly, syndactyly and brachydactyly that affects the feet more than the hands.

Complications There are various complications associated with this syndrome, these are (but are not limited to):

Sudden death associated with the cardiac problems characteristic of this condition. Pain while walking, self-consciousness/insecurity of one's foot associated with the brachymetatarsia characteristic of this condition. Self insecurity (sometimes) associated with brachydactyly

Genetics This condition is caused by a splice site mutation in the LMNA gene, located in chromosome 1. This mutation is inherited following an autosomal dominant manner.

Diagnosis There are various methods of diagnosis, some of them are:

Genetic testing/sequencing In 2008, Renou et al. sequenced the LMNA gene of 12 members of the Slovenian family described by Sinkovec et al. and by doing this they identified a splice site mutation that was not found in 100 healthy control subjects without this type of heart-hand syndrome.

Radiographs When radiographed, members of the Slovenian family reported by Sinkovec et al. were found to have various radiographic anomalies, these included the duplication of the second metatarsal's bases, terminal phalange symphalangism of the toes, extra foot ossicles, brachyphalangy, etc.

Electrocardiogram Abnormal heart beats can be diagnosed through electrocardiograms.

Prevalence According to OMIM, only 21 cases from 2 Slovenian and Irish/German Canadian families have been described in medical literature.

History This condition was first discovered in 2005 by Sinkovec et al. when they described 10 members belonging to a 4-generation Slovenian family with progressive sinoatrial and atrioventricular conduction disease, ventricular tachyarrhythmia-associated sudden death, dilated cardiomyopathy, and a unique type of brachydactyly which affected the hands to a lesser extent than it affected the feet, it involved the following symptoms:

Hands Generalized brachyphalangy that affected all 3 of the phalanges of the fingers alongside clinodactyly.

Feet Brachyphalangy of the distal and proximal phalanges of the toes Hypoplastic or aplastic middle phalanges of the toes Brachymetatarsia Terminal symphalangism duplication of the bases of the second metatarsals extra ossicles Toe syndactyly.

Eponym This condition's name originates from the fact that the first family described in medical literature with this association of symptoms was from Slovenia.

See also Heart-hand syndromes Heart-hand syndrome, Spanish type Brachydactyly-long thumb syndrome Brachydactyly Brachymetatarsia Minor physical anomalies Congenital heart defects

References

Worked examples

Example 1 — a first encounter with Heart-hand syndrome, Slovenian type

Start with the simplest possible case. Write down what Heart-hand syndrome, Slovenian type claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Heart-hand syndrome, Slovenian type before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Heart-hand syndrome, Slovenian type ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Heart-hand syndrome, Slovenian type

In research: Heart-hand syndrome, Slovenian type appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Heart-hand syndrome, Slovenian type in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Heart-hand syndrome, Slovenian type is common in secondary-school and first-year university syllabi. It links to neighbouring topics Rare syndromes, so understanding it makes those chapters shorter.
In everyday life: Look for Heart-hand syndrome, Slovenian type outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Heart-hand syndrome, Slovenian type in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Heart-hand syndrome, Slovenian type means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
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Frequently asked questions

What is Heart-hand syndrome, Slovenian type in simple terms?

Heart-hand syndrome, Slovenian type is a rare autosomal dominant genetic disorder belonging to the heart-hand syndromes. Signs and symptoms Individuals with this condition typically exhibit progressive heart conduction disease, tachycardia, arrhythmia, dilated cardiomyopathy which begins during a p…

Why does Heart-hand syndrome, Slovenian type matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Heart-hand syndrome, Slovenian type?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Heart-hand syndrome, Slovenian type.