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Background & Aim: Increase in gastric residual volume and abdominal distention are important complications in patients with nasogastric tube feeding. This study aimed to determine the effect of local heat therapy on gastric residual volume and abdominal distention in patients with nasogastric tube feeding.
Methods & Materials: In this double-blind clinical trial, 64 patients with nasogastric tube feeding, were selected using the convenience sampling method according to the inclusion criteria and randomly assigned to either the experiment group or control group. For two groups, a hot pack was placed on the anterior abdominal region in two 23-minute sessions, about 1.5 hours after gavage. The temperature of the hot pack was 50°C for the experiment group and it was equal to the ambient temperature for the control group. The levels of patients’ abdominal distention and gastric residual volume were measured and compared half an hour before and 1.5 hours after gavage. Data collection tools were consisted of a demographic questionnaire and a data sheet for recording digestive function. Data were analyzed using the SPSS software version 16 through descriptive and inferential statistical tests. The p-value less than 0.05 was considered significant.
Results: According to the results, 46.9% of the patients were female and 53.1% were male. The age mean for the experiment and control groups were 12.5±72.5 and 15.3±7.8, respectively. There was no significant difference between the two groups in terms of demographic characteristics and disease-related information. Abdominal distention and gastric residual volume were similar in the two groups before the intervention, but significantly decreased in the experiment group after the intervention (P<0.05). However, there was no significant difference in the control group.
Conclusion: Local heat therapy reduces gastric residual volume and abdominal distention in patients with nasogastric tube feeding, and its application is suggested in further research.
Clinical trial registry: IRCT2015050822163N1
 

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Background & Aim: Diabetic neuropathy is found in 50% of people with diabetes and refers to a group of diseases that affect all nerves such as peripheral, autonomic and spinal nerves. This study aimed to investigate the effect of topical heat therapy on clinical symptoms of peripheral neuropathy in patients with type 2 diabetes.
Methods & Materials: The present study was a randomized controlled clinical trial conducted on 52 patients with type 2 diabetes with peripheral neuropathy referred to the clinic of Allameh Behlool Gonabadi Hospital in 2018. The participants were randomly divided into two groups of intervention and placebo. The intervention group received heat therapy using a hot pack at 40 ° C twice a day for 20 minutes for a week. The control group received all routine care similar to the intervention group. A demographic information form and NSS questionnaire were used to collect the data through interview. Data were analyzed using the SPSS software version 23 at a significance level of less than 0.05.
Results: The mean scores of neuropathy symptoms before and after the intervention were 5.46±1.90 and 4.12±1.55 respectively for the intervention group, and 4.88±1.53 and 5.08±1.52 for the control group that no significant difference was observed between the both groups before the intervention (P=0.23), but there was a statistically significant difference after the intervention (P=0.03). Also, the comparison of the mean scores of two groups after the intervention showed a significant difference (P<0.001).
Conclusion: The findings showed that topical heat therapy can improve the clinical symptoms of peripheral neuropathy. Since this technique is easy to learn and inexpensive, it can be used to reduce treatment costs and drug side effects, as well as to improve patient self-care.
Clinical trial registry: IRCT20181015041354N1