It’s not unusual to hear people describe themselves as emotionally 'colder'

It’s not unusual to hear people who have undergone sympathectomies describe themselves as feeling emotionally “colder” than before. Among psychologists and neurologists alike there is concern, but no evidence, that the procedure limits alertness and arousal as well as fear, and might affect memory, empathy and mental performance. Professor Ronald Rapee, the director of the Centre of Emotional Health at Sydney’s Macquarie University, says he’s counselled several people who complain of feeling “robot-like” in the long-term wake of the operation. “They’re happy they no longer blush, but they miss the highs and lows they used to feel.”
(John van Tiggelen, Good Weekend Magazine, The Age and the Sydney Morning Herald, 10th March 2012)
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Saturday, 21 November 2015

Snipping the nerve can stop 'flight-or-fight' stress response impacting heart


What do sweaty palms and abnormal heart rhythms have in common? Both can be initiated by the nervous system during an adrenaline-driven "flight-or-fight" stress reaction, when the body senses danger.

Hyperhidrosis, an abnormal flight-or-fight response of the sympathetic nervous system that causes excessively sweaty palms may also contribute to problems like dangerous irregular rhythms from the lower chambers of the heart, known as ventricular arrhythmias.

UCLA cardiologists have now found that surgery to snip nerves associated with the sympathetic nervous system on both the left and right sides of the chest may be helpful in stopping dangerous, incessant ventricular arrhythmias — known as an "electrical storm" — when other treatment methods have failed. This same type of surgery has been used for years to alleviate hyperhidrosis.

The UCLA team's findings are reported in the Dec. 27–Jan. 3 issue of the Journal of the American College of Cardiology. The study is one of the first to assess the impact of bilateral cardiac sympathetic denervation (BCSD), surgery on both sides of the heart, to control arrhythmias. The research builds on previous work at UCLA in which a similar procedure was performed only on the left side. But for some patients to obtain relief, the researchers said, it must be done bilaterally. 


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