Tako-tsubo cardiomyopathy after administration of ergometrine following elective caesarean delivery: a case report oleh Keskin Abdulgazi, Winkler Ralph, Mark Bernd, Kilkowski Andreas, Bauer Timm, Koeth Oliver, Camci Selcan, Cornelius Bernd, Layer Günther, Zeymer Uwe, Zahn Ralf