Background: The rational length of stay following non-complicated percutaneous coronary intervention (PCI) for\nNon-ST elevation myocardial infarction (NSTEMI) patients remains controversial. Few studies have examined the\nimpact of early discharge on short-term outcomes in NSTEMI patients, but short-time discharge is not uncommon\nin real world practice. This study examined the impact of short time discharge following non-complicated PCI on\n30-day net adverse clinical events in NSTEMI patients.\nMethods: This retrospective study enrolled 1424 consecutive patients with NSTEMI diagnoses who underwent noncomplicated\nPCI. Of these patients, 432 were discharged early (< 24 h), whereas the remaining 992 NSTEMI patients\nunderwent routine discharge. The primary end points of the study were the net adverse clinical events including\nmajor adverse cardiac or cerebral events or access site vascular/bleeding complications within 30 days. The\ndifferences between the two groups were analyzed after propensity score matching to reduce selection bias.\nResults: The incidence of crude 30-day net adverse events was numerically higher in the long-time discharge\ngroup at 11.6% (115/992) compared with 8.6% (37/432) in the short-time discharge group, although this difference\nwas not significant (P = 0.09). This difference was mainly due to lesser radial access selected in the long-time\ndischarge group (827/932, 83.4% vs. 387/432, 89.5%, P < 0.0005). After PS matching to balance the access difference,\nthere was no significant difference in the incidence of the events mentioned above between two groups.\nConclusions: If an NSTEMI patient undergoes PCI without any procedural or hospital complications, short-time\ndischarge after successful PCI would be feasible and safe in selected NSTEMI patients.
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