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16 Οκτωβρίου 2021, 21:17:54

Αποστολέας Θέμα: Ice Cube Therapy May Dilute Pain From Local Anesthetic Injections.  (Αναγνώστηκε 1194 φορές)

0 μέλη και 1 επισκέπτης διαβάζουν αυτό το θέμα.

7 Νοεμβρίου 2017, 00:56:30
Αναγνώστηκε 1194 φορές
Αποσυνδεδεμένος

Argirios Argiriou

Moderator
By Natalie Grover
November 02, 2017

(Reuters Health) - Briefly applying an ice cube to the skin could diminish the pain associated with local anesthetic injections, a small study suggests.

Local anesthetics are typically used to reduce pain when minor wounds need to be cleaned or stitched up, but the injections themselves are often considered the most painful part of the procedure, according to the National Institutes of Health.
As the study authors describe in the Emergency Medicine Journal online October 12, there are multiple ways to reduce the associated pain. They include mixing the local anesthetic with sodium biocarbonate, applying eutectic mixture of local anesthetics (EMLA) cream, and warming lidocaine to near body temperature.
But, the authors point out, each method has known drawbacks. The shelf life for lidocaine is shortened when it is buffered with sodium bicarbonate or warmed close to body temperature; additional equipment is needed for storage; tiny precipitates form after mixing with sodium bicarbonate; and EMLA cream is not approved for use on open wounds.
The Greek philosopher and physician Hippocrates, often considered the father of medicine, first described the technique of applying cold to reduce pain, the researchers noted. Since then, at least in terms of procedural analgesia, several studies have demonstrated that a cooling spray or ice cubes effectively reduced pain when veins and arteries need to be punctured.
The current study, conducted by Dr. SangChun Choi and colleagues at Ajou University Hospital in the Republic of Korea, involved 50 patients, ages 18 to 65, who were having simple lacerations repaired in the emergency department.
Half the patients were assigned to receive cryotherapy, in which an ice cube placed inside a sterile glove was applied to the wound for two minutes before a lidocaine injection. The other patients received standard care, with no special treatment before the injection.
Patients were asked to rank their pain after the injection, on a scale of 1 to 10, with 10 being the worst.

In the ice cube group, half the patients ranked their pain level as no higher than 2, whereas in the control group, half the patients had a pain score of 5 or higher.
Overall, the authors report, the results showed that ice cube cryotherapy could significantly reduce perceived pain from local anesthetic injections, without increasing wound complications.
“Cryotherapy appears to be safe, pragmatic and effective,” study authors concluded, noting that in contrast to other known methods to reduce pain associated with local anesthetic injections, this approach does not involve the modification of anesthetic administration, any special equipment, or additional expenses.
Dr. Ian Gibbons, a senior house officer at Royal Surrey County Hospital in Guildford who was not involved in the study, commended the potential of ice cube therapy. He noted in an email to Reuters Health that it’s relatively cheap and readily available.

Dr. Ryan Stanton, a spokesman for the American College of Emergency Physicians, told Reuters Health by email, “I don’t think you can declare it “completely safe” with those small numbers, but ice is commonly used for analgesia. There is more to determine, but I’m sure it has a role and it’s cheap with few likely issues.”
Stanton, who was not involved in the study, said the challenge with ice therapy could be that if administered for too long, it could lead to tissue damage, and that physicians may be tempted to grab ice cubes out of dispensers, instead of waiting for a sterile ice cube.
Whether this approach is adopted will likely depend on the healthcare provider’s personal preference and patient population, he said, “but I don't expect to see official protocols” calling for ice cubes.
The researchers acknowledged several weaknesses of their study. For example, there weren’t enough patients to show whether pain reductions might be different in various parts of the body. In addition, although researchers who collected data on pain scores were separate from those who gave the injection, it would be easy to discern which group the patient was part of upon detecting colder skin. Furthermore, variables including the depth of the needle tip, the speed of the injection, the amount injected, and choice of local anesthetic could impact pain scores.
Gibbons also underscored the likelihood of an amplified placebo effect, noting that “surely people would be able to tell if there was an ice cube on them?”
Pain scores can also be extremely subjective, he added, “I've seen people with broken hips describing 1/10 pain and people with nothing wrong with them playing on their phones describing 10/10 pain.”
SOURCE: Δεν είναι ορατοί οι σύνδεσμοι (links). Εγγραφή ή Είσοδος
Emerg Med J 2017.
Reuters Health Information © 2017
Cite this article: Ice Cube Therapy May Dilute Pain From Local Anesthetic Injections - Medscape - Nov 01, 2017.

Δεν είναι ορατοί οι σύνδεσμοι (links). Εγγραφή ή Είσοδος
Before ordering a test decide what you will do if it is (1) positive, or (2) negative. If both answers are the same, don't do the test. Archie Cochrane.

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