The impact of using P6 acupressure on the nausea, vomiting, and comfort of myocardial infarction patients: A randomized, single-blind, placebo-controlled clinical trial.

Background: Nausea and vomiting are two common symptoms in myocardial infarction patients. This study aims to determine the impact of p6 acupressure on nausea, vomiting, comfort, and the need for anti-vomiting drugs in myocardial infarction (MI) patients. Methods: This research involved 90 patients with acute heart attacks experiencing persistent nausea despite taking anti-vomiting drugs. They were divided into three groups: acupressure, placebo, and control. The acupressure group wore a wristband with a button, the placebo group had a similar wristband without a button, and the control group received no wristband. Data on nausea severity, comfort, frequency of nausea, vomiting, and retching was collected before and after the intervention at different time points. The study also assessed the use of anti-vomiting drugs within 24 h of the intervention. Results: The patients in the acupressure group, compared to those in the placebo and control groups, experienced significantly lower severity of nausea, frequency of vomiting, nausea, and retching and a substantially higher level of comfort level during the two, four, and 6 h after the start of the intervention (P < 0.05). However, no significant difference between the placebo and control groups was observed (P > 0.05). During the 24 h after the start of the intervention, administration of anti-vomiting drugs to the acupressure group was significantly less than that done in the placebo and control groups (P < 0.05). Conclusions: The results illustrated that p6 acupressure reduces nausea, vomiting, and retching and increases the comfort level in myocardial infarction patients.

Effect of Cardamom Inhalation Therapy on Intra-and Postoperative Nausea and Vomiting of Mothers Undergoing Spinal Anesthesia for Elective Cesarean Section.

PURPOSE: This study aimed to determine the effect of cardamom inhalation on intra and postoperative nausea and vomiting (IONV/PONV) of mothers undergoing spinal anesthesia for elective cesarean section. DESIGN: A single-blind, randomized, placebo-controlled clinical trial study. METHODS: Seventy eligible participates were equally randomized to the intervention or placebo group. The demographic and clinical characteristics questionnaire, a 100 mm Visual Analogue Scale (VAS) to measure the severity of nausea; and the mothers' emetic episodes checklist were used. Upon the first episode of nausea, participants inhaled through a plastic bag containing distilled gauze pads in normal saline with or without Cardamom essential oil. FINDINGS: Following the intervention, nausea severity in placebo (25.28 ± 32.38) and cardamom (13.14 ± 19.96) groups declined (P < .001), however after controlling the initial severity of nausea, the declining extent was more noticeable in the intervention group than in the placebo group. The episodes of nausea (37.1% vs 65.7%, P = .006), and retching (20% vs 45.7%, P = .028) were significantly lower in the intervention group than in the placebo group. Administration of antiemetic medications was lower in the intervention than the placebo group (37.1% vs 65.7%, P = .009). CONCLUSIONS: Cardamom aromatherapy was effective in alleviating mothers' experience of nausea and retching across the cesarean surgical continuum. As such, it can be considered as a palliative treatment for IONV/PONV in Cesarean section surgeries.

The effect of Er,Cr:YSGG laser and air abrasion on shear bond strength of a fissure sealant to enamel.

PURPOSE: The authors conducted an in vitro study to evaluate the shear bond strength of a fissure sealant to enamel pretreated with erbium,chromium:yttrium, scandium,gallium,garnet (Er,Cr:YSGG) laser or air abrasion followed by acid etching. METHODS: The authors sectioned extracted sound premolars mesiodistally and used the buccal and lingual surfaces for experimental analysis. They divided specimens randomly into three groups of 15 each according to the enamel surface pretreatment methods: group A, 37 percent phosphoric acid; group B, air abrasion followed by acid etching with 37 percent phosphoric acid; group C, irradiation with Er,Cr:YSGG laser followed by acid etching with 37 percent phosphoric acid. After applying a bonding system, the authors bonded cylinders of sealant to the enamel surfaces by using transparent gelatin tubes (0.7 millimeter in diameter and 1 mm in height) and then polymerized them. They stored all specimens in distilled water at 37 degrees C for 24 hours. They tested shear bond strength by using a universal testing machine with a crosshead speed of 0.5 mm per second. The authors analyzed the data by means of one-way analysis of variance and Tukey-Kramer post hoc tests (alpha = .05). RESULTS: The bond strength of group B specimens was statistically higher than those of group A and group C specimens (P < .05). The authors found no statistically significant differences in shear bond strength between surfaces treated with Er,Cr:YSGG laser and those treated with acid etching alone (P > .05). CONCLUSION: Pretreatment of enamel surfaces with air abrasion increased the bond strength of fissure sealant, but pretreatment with Er,Cr:YSGG laser did not increase the effectiveness of conventional acid etching of enamel in sealant bonds.