Brazil's president Luiz Inacio Lula da Silva was briefly hospitalized for high blood pressure and canceled his trip to the World Economic Forum in Switzerland, his office said on Thursday.
Television images showed the 64-year-old Lula, visibly tired and dressed in a white track suit, saying goodbye to doctors as he left hospital in the northeastern city of Recife. His high blood pressure was due to stress, frequent trips and lack of sleep, his doctor Cleber Ferreira said.
Lula took a flight to Sao Paulo, where he will rest at his residence, and his public schedule was canceled through Sunday.
The episode raises questions about the health of the former union leader for the first time since he took office as president of Latin America's largest economy in January 2003.
It could also impair Lula's ability to campaign for his chosen candidate, his chief of staff Dilma Rousseff, in Brazil's presidential election in October. By law, he cannot run for a third consecutive term.
Lula is Brazil's most popular president in recent history. He has overseen its longest period of economic growth in three decades and had been traveling extensively with Rousseff in recent weeks.
On Wednesday, he had a busy schedule in Recife, visiting public works projects and attending a Holocaust memorial ceremony. He complained of chest pains during the day and had to leave a dinner with Pernambuco state governor Eduardo Campos early because he was feeling ill.
Lula's doctor recommended he be checked before the long flight to Switzerland, the president's office said. His blood pressure was much higher than usual and he was taken to hospital, where the results of exams were normal, it said.
Lula, who has earned praise for fighting social inequality while pursuing market-friendly policies, was due to receive the Global Statesmanship Award in Davos, Switzerland.
The former factory worker won investor confidence in 2003 by abandoning decades of left-wing rhetoric in favor of pragmatic economic policies, including a free-floating exchange rate, fiscal discipline and an inflation-targeting regime.
Tax breaks, low-cost credits and an increased minimum wage have helped Brazil emerge from a brief recession in the second quarter of last year.
Neither Rousseff nor the leading presidential hopeful, Sao Paulo state governor Jose Serra of the opposition PSDB party, are seen to differ substantially on economic policy from Lula.
