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Saco- Indonesia.com - Serangan stroke dapat terjadi tiba-tiba, namun tanda-tandanya sebenarnya dapat dideteksi. Para ahli mengatakan, semakin dini stroke dikenali dan diobati, maka semakin besar kemungkinan untuk sembuh dan terhindar dari risiko kelumpuhan.

Mati rasa pada wajah, lengan, kaki di satu sisi tubuh, disertai kebingungan dan masalah berbicara merupakan tanda-tanda seseorang mengalami stroke. Selain itu, ada pula tanda-tanda seperti pusing dan sakit kepala parah, mengalami masalah berjalan, hilang penglihatan di satu atau kedua mata.

Kepala Divisi Stroke di NewYork-Presbyterian Hospital/Columbia University Medical Center mengatakan, ketika seseorang terkena stroke, mereka akan menunjukkan tanda-tanda perubahan fisik yang dapat dikenali, ringan ataupun ekstrem. 

Berikut adalah beberapa tanda yang perlu diwaspadai :

1. Tiba-tiba mati rasa atau lemah pada bagian wajah, lengan, atau kaki - terutama pada satu sisi tubuh.

Orang dengan stroke biasanya akan memiliki bentuk mulut "tidak rata" alias mencong. Perlu diwaspadai juga apabila mereka (orang yang dicurigai stroke) mengalami kesulitan menggerakkan lengan atau mengendalikan jari. Misalnya, ketika mengangkat kedua tangan, tangan yang sebelah lebih tinggi dibandingkan tangan yang lain.

2. Tiba-tiba kebingungan dan kesulitan berbicara.

Masalah bahasa adalah salah satu tanda-tanda yang paling umum dari stroke. Seseorang yang mengalami stroke tiba-tiba mungkin akan mengalami masalah ketika mereka bicara. Bahkan, beberapa di antaranya juga mengalami penurunan pemahaman. Mintalah dia (orang yang dicurigai stroke) untuk mengulangi kembali kalimat sederhana kepada Anda, misalnya: "Saya pergi ke toko hari ini." Jika ia mengalami kesulitan mengulangi kata-kata itu bisa jadi dia mengalami stroke.

3. Pengelihatan mendadak terganggu.

Gangguan pengelihatan yang datang secara tiba-tiba merupakan gejala stroke yang umum. Mereka mungkin tidak akan mampu melihat dengan jelas dengan satu mata, atau mungkin mengalami kesulitan untuk melihat ke kanan atau kiri.

4. Tiba-tiba kesulitan berjalan, kehilangan keseimbangan atau koordinasi.

Berjalan seolah-olah mabuk, tersandung, atau bahkan jatuh adalah semua gejala stroke. Tanda-tanda serupa lainnya seperti berjalan dengan kaki terbuka lebar atau tiba-tiba kehilangan kemampuan motorik halus, seperti ketidakmampuan untuk menulis juga patut diwaspadai.

5. Sakit kepala parah tiba-tiba tanpa diketahui penyebabnya.

Gangguan sakit kepala tidak selalu identik dengan gejala stroke. Tetapi, jika sakit kepala menyerang tiba-tiba atau tampak sangat intens, patut untuk diwaspadai. Jika leher kaku, nyeri pada wajah, atau muntah yang disertai sakit kepala bukan tidak mungkin akan menyebabkan terjadinya perdarahan intrakranial, juga dikenal sebagai "stroke merah (red sroke)."

 


Pencegahan

Pengobatan dini dapat mencegah kerusakan yang lebih besar akibat stroke. Salah satu pengobatan umum stroke yaitu dengan tissue plasminogen activator (TPA). Obat ini disuntikkan ke arteri atau vena yang kemudian akan melarutkan sumbatan di pembuluh darah sehingga darah kembali mengalir ke otak.

Stroke merupakan penyakit pemicu kematian yang serius, namun sebenarnya dapat dicegah. Perubahan gaya hidup perlu ditingkatkan guna mengurangi risiko stroke. Berikut beberapa perubahan gaya hidup yang dapat dilakukan :

- Kurangi garam

Mengurangi konsumsi garam dapat menurunkan tekanan darah sehingga mengurangi risiko stroke.

- Konsumsi makanan sehat

Kurangi kolesterol "jahat" dapat meningkatkan kesehatan jantung dan mengurangi risiko stroke. Kadar kolesterol harus di bawah 200 mg/dL.

- Stop merokok

Perokok memiliki risiko stroke dua kali lipat. Merokok dapat merusak pembuluh darah dan meningkatkan tekanan darah, serta mempercepat penyumbatan di pembuluh darah.

- Hidup aktif dan olahraga

Orang yang kelebihan berat badan atau obesitas memiliki risiko yang lebih besar memiliki kadar kolesterol tinggi, hipertensi, diabetes, dan stroke. Olahraga dapat mengurangi berat badan sehingga mengurangi risiko penyakit-penyakit tersebut.

Meskipun telah mengubah gaya hidup, para ahli mengatakan orang yang berusia di atas 55 tahun memiliki risiko yang lebih besar terkena stroke. Selain itu, meskipun stroke lebih umum terjadi di kalangan kaum Adam, namun wanita pun tak terlepas dari risikonya.

Sumber :Healthday News
Editor : Liwon Maulana(galipat)
CARA CEPAT KENALI GEJALA STROKE

Though Robin and Joan Rolfs owned two rare talking dolls manufactured by Thomas Edison’s phonograph company in 1890, they did not dare play the wax cylinder records tucked inside each one.

The Rolfses, longtime collectors of Edison phonographs, knew that if they turned the cranks on the dolls’ backs, the steel phonograph needle might damage or destroy the grooves of the hollow, ring-shaped cylinder. And so for years, the dolls sat side by side inside a display cabinet, bearers of a message from the dawn of sound recording that nobody could hear.

In 1890, Edison’s dolls were a flop; production lasted only six weeks. Children found them difficult to operate and more scary than cuddly. The recordings inside, which featured snippets of nursery rhymes, wore out quickly.

Yet sound historians say the cylinders were the first entertainment records ever made, and the young girls hired to recite the rhymes were the world’s first recording artists.

Year after year, the Rolfses asked experts if there might be a safe way to play the recordings. Then a government laboratory developed a method to play fragile records without touching them.

Audio

The technique relies on a microscope to create images of the grooves in exquisite detail. A computer approximates — with great accuracy — the sounds that would have been created by a needle moving through those grooves.

In 2014, the technology was made available for the first time outside the laboratory.

“The fear all along is that we don’t want to damage these records. We don’t want to put a stylus on them,” said Jerry Fabris, the curator of the Thomas Edison Historical Park in West Orange, N.J. “Now we have the technology to play them safely.”

Last month, the Historical Park posted online three never-before-heard Edison doll recordings, including the two from the Rolfses’ collection. “There are probably more out there, and we’re hoping people will now get them digitized,” Mr. Fabris said.

The technology, which is known as Irene (Image, Reconstruct, Erase Noise, Etc.), was developed by the particle physicist Carl Haber and the engineer Earl Cornell at Lawrence Berkeley. Irene extracts sound from cylinder and disk records. It can also reconstruct audio from recordings so badly damaged they were deemed unplayable.

“We are now hearing sounds from history that I did not expect to hear in my lifetime,” Mr. Fabris said.

The Rolfses said they were not sure what to expect in August when they carefully packed their two Edison doll cylinders, still attached to their motors, and drove from their home in Hortonville, Wis., to the National Document Conservation Center in Andover, Mass. The center had recently acquired Irene technology.

Audio

Cylinders carry sound in a spiral groove cut by a phonograph recording needle that vibrates up and down, creating a surface made of tiny hills and valleys. In the Irene set-up, a microscope perched above the shaft takes thousands of high-resolution images of small sections of the grooves.

Stitched together, the images provide a topographic map of the cylinder’s surface, charting changes in depth as small as one five-hundredth the thickness of a human hair. Pitch, volume and timbre are all encoded in the hills and valleys and the speed at which the record is played.

At the conservation center, the preservation specialist Mason Vander Lugt attached one of the cylinders to the end of a rotating shaft. Huddled around a computer screen, the Rolfses first saw the wiggly waveform generated by Irene. Then came the digital audio. The words were at first indistinct, but as Mr. Lugt filtered out more of the noise, the rhyme became clearer.

“That was the Eureka moment,” Mr. Rolfs said.

In 1890, a girl in Edison’s laboratory had recited:

There was a little girl,

And she had a little curl

Audio

Right in the middle of her forehead.

When she was good,

She was very, very good.

But when she was bad, she was horrid.

Recently, the conservation center turned up another surprise.

In 2010, the Woody Guthrie Foundation received 18 oversize phonograph disks from an anonymous donor. No one knew if any of the dirt-stained recordings featured Guthrie, but Tiffany Colannino, then the foundation’s archivist, had stored them unplayed until she heard about Irene.

Last fall, the center extracted audio from one of the records, labeled “Jam Session 9” and emailed the digital file to Ms. Colannino.

“I was just sitting in my dining room, and the next thing I know, I’m hearing Woody,” she said. In between solo performances of “Ladies Auxiliary,” “Jesus Christ,” and “Dead or Alive,” Guthrie tells jokes, offers some back story, and makes the audience laugh. “It is quintessential Guthrie,” Ms. Colannino said.

The Rolfses’ dolls are back in the display cabinet in Wisconsin. But with audio stored on several computers, they now have a permanent voice.

Ghostly Voices From Thomas Edison’s Dolls Can Now Be Heard

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