A prolapse prevention device (300, 500, 600, 700, 800, 1700) for treating valvular regurgitation in a heart valve, the prolapse prevention device (300, 500, 600, 700, 800, 1700) comprising: a continuous wire-like structure (302, 502, 602, 702, 802, 1702) having a first end (304, 504, 604, 704, 804, 1704) and a second end (306, 506, 606, 706, 806, 1706) that opposes the first end (304, 504, 604, 704, 804, 1704), the first end (304, 504, 604, 704, 804, 1704) and the second end (306, 506, 606, 706, 806, 1706) being disconnected from each other, wherein the continuous wire-like structure (302, 502, 602, 702, 802, 1702) of the prolapse prevention device (300, 500, 600, 700, 800, 1700) is substantially straight in a delivery configuration, and wherein the continuous wire-like structure (302, 502, 602, 702, 802, 1702) of the prolapse prevention device (300, 500, 600, 700, 800, 1700) in a deployed configuration includes a centering ring (310, 510, 610, 710, 810, 1710) configured to seat adjacent to and upstream of an annulus of the heart valve to circumferentially center the prolapse prevention device (300, 500, 600, 700, 800, 1700) in situ, a vertical support (314, 514, 614, 714, 814, 1714) extending from the centering ring (310, 510, 610, 710, 810, 1710) such that an apex (316, 516, 616, 716, 816, 1716) thereof is configured to seat against a roof of an atrium in situ, and a leaflet backstop (312, 512, 612, 712, 812, 1712) extending radially inward from the centering ring (310, 510, 610, 710, 810, 1710) and configured to contact at least a first leaflet of the heart valve in situ to exert a pressure in a downstream direction on the first leaflet to prevent the first leaflet from prolapsing into the atrium. a continuous wire-like structure (302, 502, 602, 702, 802, 1702) having a first end (304, 504, 604, 704, 804, 1704) and a second end (306, 506, 606, 706, 806, 1706) that opposes the first end (304, 504, 604, 704, 804, 1704), the first end (304, 504, 604, 704, 804, 1704) and the second end (306, 506, 606, 706, 806, 1706) being disconnected from each other, wherein the continuous wire-like structure (302, 502, 602, 702, 802, 1702) of the prolapse prevention device (300, 500, 600, 700, 800, 1700) is substantially straight in a delivery configuration, and wherein the continuous wire-like structure (302, 502, 602, 702, 802, 1702) of the prolapse prevention device (300, 500, 600, 700, 800, 1700) in a deployed configuration includes a centering ring (310, 510, 610, 710, 810, 1710) configured to seat adjacent to and upstream of an annulus of the heart valve to circumferentially center the prolapse prevention device (300, 500, 600, 700, 800, 1700) in situ, a vertical support (314, 514, 614, 714, 814, 1714) extending from the centering ring (310, 510, 610, 710, 810, 1710) such that an apex (316, 516, 616, 716, 816, 1716) thereof is configured to seat against a roof of an atrium in situ, and a leaflet backstop (312, 512, 612, 712, 812, 1712) extending radially inward from the centering ring (310, 510, 610, 710, 810, 1710) and configured to contact at least a first leaflet of the heart valve in situ to exert a pressure in a downstream direction on the first leaflet to prevent the first leaflet from prolapsing into the atrium. a centering ring (310, 510, 610, 710, 810, 1710) configured to seat adjacent to and upstream of an annulus of the heart valve to circumferentially center the prolapse prevention device (300, 500, 600, 700, 800, 1700) in situ, a vertical support (314, 514, 614, 714, 814, 1714) extending from the centering ring (310, 510, 610, 710, 810, 1710) such that an apex (316, 516, 616, 716, 816, 1716) thereof is configured to seat against a roof of an atrium in situ, and a leaflet backstop (312, 512, 612, 712, 812, 1712) extending radially inward from the centering ring (310, 510, 610, 710, 810, 1710) and configured to contact at least a first leaflet of the heart valve in situ to exert a pressure in a downstream direction on the first leaflet to prevent the first leaflet from prolapsing into the atrium.