It was reported in a journal article entitled: continuous versus interrupted technique of ventricular septal defect (vsd) closure in total correction for tetrology of fallot pertaining to residual vsd.Authors: riffat tanveer, arif-ur-rehman khan, tariq azam siddiqi, sohail siddique, ameena nasreen, salman-ur-rehman and saad badar citation: vol.60, no.4, april 2010.The aim of this randomized control study was to analyze the outcome of continuous versus interrupted closure technique of ventricular septal defect (vsd) closure in tetrology of fallot (tof) with reference to postoperative residual vsd after total correction.Between january 2008 to december 2008, 60 patients with tof were included in the study.There were 20 females and 40 males with ages ranging between 4 to 18 years old.During the procedure, 30 patients¿ vsd was closed with 5/0 proline continuous double ended suture while in remaining 30 (50%) patients vsd was closed with interrupted 5/0 prolene double ended sutures.Postoperative echocardiography was done in all patients as a routine on second postoperative day, to document residual vsd.Postoperative echocardiography showed residual vsd in 05 (8.3%) patients at postero-inferior rim of vsd.Of these 05 cases, in four vsd had been closed with continuous 5/0 proline double ended sutures, and one had vsd closed with interrupted 5/0 double ended sutures.Suturing techniques may play a significant role in occurrence of residual vsd.In all patients leak was at postero-inferior area of the septal patch.In conclusion, residual vsd is common with continuous suturing repair technique as compared to interrupted suturing technique of vsd closure.This is perhaps because of poor myocardium quality and higher rv pressures in our late presenting patients compared to western population of patients.Small (less than 05 mm size) residual vsd can be treated conservatively if haemodynamically stable.No further information is available.
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