Observational studyBrazilian journal of anesthesiology (Elsevier)
Early versus late sphenopalatine ganglion block with ropivacaine in postdural puncture headache: an observational study.
Observational study in Brazilian journal of anesthesiology (Elsevier). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
4 citing papers in PubMed, 8 citations in OpenAlex.
- Sphenopalatine Ganglion Block for Postdural Puncture Headache in the Obstetric Population: A Narrative Review.Journal of pain research · 2026Review
- Intranasal Lidocaine Administration via Mucosal Atomization Device: A Simple and Successful Treatment for Postdural Puncture Headache in Obstetric Patients.Biomedicines · 2023Article
- Transnasal sphenopalatine ganglion block for postdural puncture headache in obstetric patients: A Malaysian experience report.Journal of Taibah University Medical Sciences · 2022Article
- A randomized control study to assess the efficacy of the sphenopalatine ganglion block in patients with post dural puncture headache.Saudi journal of anaesthesiaArticle
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPostdural puncture headache (PDPH) is a common complication of neuraxial techniques which delays patients.ÇÖ discharge. Sphenopalatine ganglion block (SPGB) is a safe bedside technique with comparable efficacy to Epidural Blood Patch, the gold-standard treatment. There is no evidence on the ideal timing for SPGB performance. We aimed to evaluate the difference between early versus late SPGB concerning efficacy, symptom recurrence and hospital length of stay.
methodsWe present an observational study with 41 patients diagnosed with PDPH who were submitted to SPGB with ropivacaine 0,75%. The study sample (n=41) was divided in two groups: an early (less than 24hours after diagnosis) and a late (more than 24hours after diagnosis) SPGB group. Pain was evaluated 15minutes after the block and follow up occurred daily until patients were discharged. PATIENTS: ÇÖ demographic characteristics, neuraxial technique, timing of SPGB, qualitative pain relief and post-SPGB length of stay were registered and analyzed with SPSS statistics (v26) software.
resultsEarly SPGB resulted in a significant reduction in length of stay (p=0,009) and symptom recurrence (p=0,036), showing equally effective pain relief, compared to late SPGB.
conclusionsSPGB was equally effective in both groups. Data showed that early SPGB reduces length of hospital stay and symptom recurrence, which potentially allows early resumption of daily activities and a reduction in total health costs.
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