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1.
J Pediatr Orthop ; 41(7): 417-421, 2021 Aug 01.
Article in English | MEDLINE | ID: mdl-34001807

ABSTRACT

BACKGROUND: Methylnaltrexone, a peripheral opioid antagonist, is used to decrease opioid-induced constipation; however, there is limited evidence for its use in children. The primary objective of the study is to assess the efficacy of per os (PO) methylnaltrexone in inducing bowel movements (BMs) in patients with adolescent idiopathic scoliosis who underwent a posterior spinal fusion and instrumentation (PSFI). Secondary outcomes include hospital length of stay, postoperative pain scores, and postoperative opioid usage. METHODS: Retrospective chart review identified all adolescent idiopathic scoliosis patients above 10 years of age who underwent PSFI with a minimum of 24 hours of postoperative opioid analgesia after the initiation of the new bowel regimen protocol. The bowel regimen included daily administration of PO methylnaltrexone starting on postoperative day 1 until BM is achieved. A case-matched cohort was obtained with patients who did not receive PO methylnaltrexone and otherwise had the same bowel function regimen. Case-matched controls were also matched for age, sex, body mass index, and curve severity. t Tests and Pearson χ2 tests were used for statistical analysis. RESULTS: Fifty-two patients received oral methylnaltrexone (14±2.6 y) and 52 patients were included in the case-matched control group (14±2.1 y). The methylnaltrexone group had a significantly shorter hospital length of stay (3.09±0.66) compared with controls (3.69±0.80) (P<0.01). 59% (31 of 52) of the methylnaltrexone group had a BM by postoperative day postoperative day 2, compared with 30% (16 of 52) of the control group (P<0.01). In the methylnaltrexone group, 44% (23 of 52) of the patients required a Dulcolax (bisacodyl) suppository and 11% (6 of 52) required an enema, compared with 50% (26 of 52) and 33% (12 of 52) of the control group respectively (P=0.43 and 0.12). In addition, significantly less patients had abdominal distension during their postoperative stay in the methylnaltrexone group (17%, 9 of 52) compared with the control group (40%, 21 of 52) (P<0.01). There was no significant difference in self-reported average FACES pain score (P=0.39) or in opioid morphine equivalents required per hour (P=0.18). CONCLUSIONS: Patients who received PO methylnaltrexone after PSFI had decreased length of stay and improved bowel function. Administration of methylnaltrexone did not increase maximum self-reported FACES pain values or opioid consumption compared with controls. The use of oral methylnaltrexone after PSFI reduces postoperative constipation, which has implications for reducing hospital length of stay and overall morbidity. LEVEL OF EVIDENCE: Level III-retrospective comparative study.

2.
J Clin Anesth ; 33: 317-9, 2016 Sep.
Article in English | MEDLINE | ID: mdl-27555185

ABSTRACT

Low-molecular-weight heparin neutralization using protamine alone can be unreliable, especially in cases of immediate reversal for emergency surgery. Here, we describe a unique case of a 17-month-old girl with a history of glioneuronal tumor and corresponding hydrocephalus status post debulking and ventriculoperitoneal shunt placement, who was placed on enoxaparin after the development of a sagittal sinus thrombosis. Patient presented for emergency craniectomy and evacuation of subdural bleed after a fall while on therapeutic dose of enoxaparin. Protamine and fresh frozen plasma were used in the patient's perioperative course providing a reliable reversal of enoxaparin.


Subject(s)
Decompressive Craniectomy/methods , Enoxaparin/antagonists & inhibitors , Heparin Antagonists/therapeutic use , Heparin, Low-Molecular-Weight/antagonists & inhibitors , Anticoagulants/therapeutic use , Blood Loss, Surgical , Brain Neoplasms/complications , Brain Neoplasms/surgery , Emergency Medical Services , Enoxaparin/therapeutic use , Female , Heparin, Low-Molecular-Weight/therapeutic use , Humans , Infant , Ventriculoperitoneal Shunt
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