Evidence map›Paper›PMID 24940471›Full record

ArticleCanadian Urological Association journal = Journal de l'Association des urologues du Canada2014

Sildenafil can induce the onset of a cluster headache bout.

Guan-Yu Lin, Jiunn-Tay Lee, Giia-Sheun Peng, Fu-Chi Yang

Open access · diamondAbstract read
In one paragraph

Article in Canadian Urological Association journal = Journal de l'Association des urologues du Canada, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 46% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Migraine and cluster headache - the common link.The journal of headache and pain · 2018
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Guan-Yu LinDepartment of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C.
Jiunn-Tay LeeDepartment of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C.
Giia-Sheun PengDepartment of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C.
Fu-Chi YangDepartment of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C.
National Defense Medical Center · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

About 25% of patients who are prescribed sildenafil, the phosphodiesterase type 5 (PDE-5) inhibitor, for erectile dysfunction (ED) experience headaches. These migraine effects are well-described, including cluster headaches. We report the case of a man who experienced a cluster headache attack following each of 2 sildenafil doses. His symptoms were resolved by adding naproxen to his treatment regimen and changing his ED treatment from 50 mg of sildenafil to 5 mg of vardenafil. To our knowledge, no study has reported cluster headaches triggered by the less commonly used PDE-5 inhibitors, namely vardenafil and tadalafil. Urologists should be cautious in prescribing sildenafil to patients with ED and with a history of cluster headaches. In these patients, they should consider prescribing low-dose vardenafil or tadalafil instead. Failure to recognize sildenafil risks could result in unnecessary headache bouts in patients with a history of cluster headaches.

Identifiers

PMID24940471
PMCPMC4039608
OpenAlexW1975965703

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.