There's an announcement on the official site of Benchen Monastery KTM (www.benchen.org):
"News from Tenga Rinpoche (Feb. 11, 2012)
Since 13th December Rinpoche has been here in Kathmandu and is recovering very, very slowly. Rinpoche's condition is like this: The amputations of the left foot and the finger have healed very, very well. Now Rinpoche's health problem is his heart valves, two valves do not open or close very well. As a consequence of this his lungs fill with water which makes it difficult to move and causes him to cough a lot. Rinpoche is also losing his appetite and he has lost a lot of weight and has become quite thin.
On 30th December Rinpoche went to Norvic Hospital, which is one of the best heart hospitals in Nepal. At that time the doctor prescribed a change of medication from what he got in Singapore. Rinpoche returned to Benchen Monastery on 1st January and is still very weak.
The winter-spring course started on 30th January. Rinpoche gave teaching for two days, mornings and afternoons, and on the second day he was completely exhausted, especially because of nausea, and had to rest. The rest of the course was taught by Sangter Tulku and Khenpo Sonam Gyurme and Khenpo Tsundru. On 6th February Rinpoche again visited the doctor at the hospital and was told that his health had not gotten worse and again his medicine was changed. Rinpoche returned to the monastery the same day.
Now Rinpoche's appetite improved a little and he is sleeping better and feels a little more fresh, although he is still quite weak. Now Rinpoche is unable to attend the Bodhgaya monlam and would like to recover in Kathmandu.