Thursday, December 18, 2008
A team of eight transplant surgeons in Cleveland Clinic in Ohio, USA, led by reconstructive surgeon Dr. Maria Siemionow, age 58, have successfully performed the first almost total face transplant in the US, and the fourth globally, on a woman so horribly disfigured due to trauma, that cost her an eye. Two weeks ago Dr. Siemionow, in a 23-hour marathon surgery, replaced 80 percent of her face, by transplanting or grafting bone, nerve, blood vessels, muscles and skin harvested from a female donor’s cadaver.
The Clinic surgeons, in Wednesday’s news conference, described the details of the transplant but upon request, the team did not publish her name, age and cause of injury nor the donor’s identity. The patient’s family desired the reason for her transplant to remain confidential. The Los Angeles Times reported that the patient “had no upper jaw, nose, cheeks or lower eyelids and was unable to eat, talk, smile, smell or breathe on her own.” The clinic’s dermatology and plastic surgery chair, Francis Papay, described the nine hours phase of the procedure: “We transferred the skin, all the facial muscles in the upper face and mid-face, the upper lip, all of the nose, most of the sinuses around the nose, the upper jaw including the teeth, the facial nerve.” Thereafter, another team spent three hours sewing the woman’s blood vessels to that of the donor’s face to restore blood circulation, making the graft a success.
The New York Times reported that “three partial face transplants have been performed since 2005, two in France and one in China, all using facial tissue from a dead donor with permission from their families.” “Only the forehead, upper eyelids, lower lip, lower teeth and jaw are hers, the rest of her face comes from a cadaver; she could not eat on her own or breathe without a hole in her windpipe. About 77 square inches of tissue were transplanted from the donor,” it further described the details of the medical marvel. The patient, however, must take lifetime immunosuppressive drugs, also called antirejection drugs, which do not guarantee success. The transplant team said that in case of failure, it would replace the part with a skin graft taken from her own body.
Dr. Bohdan Pomahac, a Brigham and Women’s Hospital surgeon praised the recent medical development. “There are patients who can benefit tremendously from this. It’s great that it happened,” he said.
Leading bioethicist Arthur Caplan of the University of Pennsylvania withheld judgment on the Cleveland transplant amid grave concerns on the post-operation results. “The biggest ethical problem is dealing with failure — if your face rejects. It would be a living hell. If your face is falling off and you can’t eat and you can’t breathe and you’re suffering in a terrible manner that can’t be reversed, you need to put on the table assistance in dying. There are patients who can benefit tremendously from this. It’s great that it happened,” he said.
Dr Alex Clarke, of the Royal Free Hospital had praised the Clinic for its contribution to medicine. “It is a real step forward for people who have severe disfigurement and this operation has been done by a team who have really prepared and worked towards this for a number of years. These transplants have proven that the technical difficulties can be overcome and psychologically the patients are doing well. They have all have reacted positively and have begun to do things they were not able to before. All the things people thought were barriers to this kind of operations have been overcome,” she said.
The first partial face transplant surgery on a living human was performed on Isabelle Dinoire on November 27 2005, when she was 38, by Professor Bernard Devauchelle, assisted by Professor Jean-Michel Dubernard in Amiens, France. Her Labrador dog mauled her in May 2005. A triangle of face tissue including the nose and mouth was taken from a brain-dead female donor and grafted onto the patient. Scientists elsewhere have performed scalp and ear transplants. However, the claim is the first for a mouth and nose transplant. Experts say the mouth and nose are the most difficult parts of the face to transplant.
In 2004, the same Cleveland Clinic, became the first institution to approve this surgery and test it on cadavers. In October 2006, surgeon Peter Butler at London‘s Royal Free Hospital in the UK was given permission by the NHS ethics board to carry out a full face transplant. His team will select four adult patients (children cannot be selected due to concerns over consent), with operations being carried out at six month intervals. In March 2008, the treatment of 30-year-old neurofibromatosis victim Pascal Coler of France ended after having received what his doctors call the worlds first successful full face transplant.
Ethical concerns, psychological impact, problems relating to immunosuppression and consequences of technical failure have prevented teams from performing face transplant operations in the past, even though it has been technically possible to carry out such procedures for years.
Mr Iain Hutchison, of Barts and the London Hospital, warned of several problems with face transplants, such as blood vessels in the donated tissue clotting and immunosuppressants failing or increasing the patient’s risk of cancer. He also pointed out ethical issues with the fact that the procedure requires a “beating heart donor”. The transplant is carried out while the donor is brain dead, but still alive by use of a ventilator.
According to Stephen Wigmore, chair of British Transplantation Society’s ethics committee, it is unknown to what extent facial expressions will function in the long term. He said that it is not certain whether a patient could be left worse off in the case of a face transplant failing.
Mr Michael Earley, a member of the Royal College of Surgeon‘s facial transplantation working party, commented that if successful, the transplant would be “a major breakthrough in facial reconstruction” and “a major step forward for the facially disfigured.”
In Wednesday’s conference, Siemionow said “we know that there are so many patients there in their homes where they are hiding from society because they are afraid to walk to the grocery stores, they are afraid to go the the street.” “Our patient was called names and was humiliated. We very much hope that for this very special group of patients there is a hope that someday they will be able to go comfortably from their houses and enjoy the things we take for granted,” she added.
In response to the medical breakthrough, a British medical group led by Royal Free Hospital’s lead surgeon Dr Peter Butler, said they will finish the world’s first full face transplant within a year. “We hope to make an announcement about a full-face operation in the next 12 months. This latest operation shows how facial transplantation can help a particular group of the most severely facially injured people. These are people who would otherwise live a terrible twilight life, shut away from public gaze,” he said.
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Industry 4.0 manpower, machines and security
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MakinateNumerous aspects have characterized this revolution, from the technological aspect, to the energy one, to that concerning the relationship and the security level between man and machines.Industry 4.0 has allowed the integration between machine tools, engineering systems, and automation at different levels of the manufacturing process.For example, software and hardware structures have been developed in order to allow the reduction of machine downtime due to breakdowns together with Cloud maintenance.There are a whole series of incentives which each Country makes available.Most of the incentives for tangible assets are destined to those goods whose functioning is controlled by computerized systems, to those devices for improving both the human-machine interaction and the safety of the workplace.The aim is to protect the worker modifying and making improvements to the working area, which must be equipped, for example, with ergonomic solutions that can be adapted to the operators, and above all systems that allow the “man-machines” relationship in a smart way, with the aim of protecting the safety and efficiency of work and / or maintenance services.As previously mentioned, the machine tools industry is always looking for innovations and is an extremely competitive industry; there is, therefore, the need to pay the utmost attention for increasing the quality, always in compliance with the technical regulations and especially with the safety regulations.The issue of security is such an important matter that there are technical committees -ISO / TC39 Machine tools and CEN / TC143 Machine tools safety – that regulate the characteristics and safety requirements of machine tools performances.It is also true that today we are still facing machines lacking in terms of safety, machines that are still lacking in security systems which sometimes have been defined as “risks that are not yet eliminable”, not even in the phase of machinery design.Moreover, what is also missing and it should be compensated is the gap between the new security technology and the acquisition of its functioning information by the operator.What does it mean?It often happens that when a technological evolution occurs, the operators who approach the new machinery or the new component of the machinery, do not have the right preparation for the correct use, nor the right protection systems. The constant training and updating of the operator are therefore also necessary.Total safety for the worker would occur when the machine becomes autonomous in all its functions, therefore the operator’s intervention on the machine will be no longer necessary. But in this case, there would be a total replacement of the man in the factories. We would lose jobs, but this is another matter that we will discuss later on the blog MakinewsAgain, Machine tools sector is one of the sectors that has been hit by the industrial revolution known as “Industry 4.0”. The machine tools industry is always looking for innovations and is an extremely competitive industry; t
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Friday, February 1, 2013
British Prime Minister David Cameron made an unannounced visit to the Libyan capital city of Tripoli yesterday after visiting Algeria earlier in the day.
David Cameron pledged that Britain would help in training Libya’s security forces. He said in a joint press conference held with Libyan Prime Minister Ali Zeidan that “the British people want to stand with you and help you deliver the greater security that Libya needs”. Cameron also reiterated his support for the French-backed intervention in Mali, denying suggestions put to him that foreign intervention in Islamic countries would lead to a backlash against Western nations by al-Qaeda.
The security was tight during his walkabout in the Martyrs’ Square, where police attempted to hold back the locals as a police helicopter flew overhead. His visit to Tripoli comes in the aftermath of recent threats to the British embassy and just a week after British citizens were urged to leave the second largest city of Benghazi due to a “specific and imminent” threat to Westerners.
Police officers investigating the 1988 Lockerbie bombing from the Dumfries and Galloway Constabulary have been granted access to new information to help them with their inquiries. In 2001, Abdelbaset al-Megrahi was convicted of murder and sentenced to life imprisonment but was released in 2009 on compassionate health grounds and died last year.