TEMPO.CO, Jakarta – The dominance of the use of the right or left hand can determine the outcome of the incident stroke acute because it can provide clues as to which side of the brain is affected. This is because the dominance of hand use is an important factor in the performance of motor skills with the dominant hand being used for daily activities and recreation.
Peneliti menemukan fakta orang kidal lebih cepat sembuh jika terkena stroke. Para peneliti telah mengamati penderita stroke memiliki tangan dominan yang terpengaruh oleh suatu insiden. Satu studi khusus menemukan pasien dengan tangan yang dominan kanan mengalami stroke di sisi kiri otak cenderung memulihkan kemampuan berbicara lebih lambat daripada yang kidal.
Dokter Athwal, konsultan neurologis di Pusat Rehabilitasi Stroke Rumah Sakit Wellington, Selandia Baru, mengatakan setiap masalah yang mempengaruhi otak, termasuk stroke, dapat bermanifestasi secara berbeda, tergantung pada penggunaan tangan.
“Ahli saraf biasanya bertanya kepada orang-orang apakah mereka kidal atau normal untuk lebih memahami efek stroke. Tangan mencerminkan sisi mana dari otak yang berisi belahan otak dominan dan sisi mana belahan otak yang tidak dominan," ujarnya.
In right-handed people, for example, the dominant hemisphere is on the left. Furthermore, some studies have found that a stroke will produce different symptoms, depending on whether it occurs on the left or right side of the brain. Most of the right-handed patients and 70 percent of right-handed patients have a language center located in the left hemisphere of the brain, another 10 percent of left-handed patients use both hemispheres to control language function.
“One important difference between the right and left sides is the function of language. It is the ability to express and understand language in all its forms, not just speaking. In almost all right-handed people and about half of right-handed people, the language center is on the left, in an area called the left temporal lobe.
A stroke here can affect the ability to understand or express language, or both. Because language is such an important function, a stroke on the left side of the brain can have a greater impact than on the right.
When a stroke affects the sensory portions of the noncerebral cortex, the injury can result in disability. Acute injury to one side of the brain can cause the patient to experience rigidity of the body on the opposite side. Therefore, when the stroke occurs on the right side brain, recovering patients may still experience stiffness in the right side.
Also read: Caution, Risk of Stroke and Heart Attack Due to Work Stress
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