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Injection speed of spinal anaesthesia for Caesarean delivery in Asian women and the incidence of hypotension: A randomised controlled trial

Chiang CF, Hasan MS, Tham SW, Sundaraj S, Faris A, Ganason N

J Clin Anesth, 2017 Jun;39:82-86.
PMID: 28494915 DOI: 10.1016/j.jclinane.2017.03.025

STUDY OBJECTIVE: The purpose of this investigation was to determine if a slower speed of spinal anaesthesia injection would reduce the incidence of hypotension.
STUDY DESIGN: Randomised controlled trial.
SETTING: Tertiary level hospital in Malaysia.
PATIENTS: 77 patients undergoing elective Caesarean delivery.
INTERVENTION: Differing speeds of spinal injection.
MEASUREMENTS: Systolic blood pressure was assessed every minute for the first 10min and incidence of hypotension (reduction in blood pressure of >30% of baseline) was recorded. The use of vasopressor and occurrence of nausea/vomiting were also recorded.
MAIN RESULTS: 36 patients in SLOW group and 41 patients in FAST group were recruited into the study. There was no significant difference in blood pressure drop of >30% (p=0.497) between the two groups. There was no difference in the amount of vasopressor used and incidence of nausea/vomiting in both groups.
CONCLUSION: In our study population, there was no difference in incidence of hypotension and nausea/vomiting when spinal injection time is prolonged beyond 15s to 60s.
TRIAL REGISTRATION: ClinicalTrials.govNCT02275897. Registered on 15 October 2014.

Matched MeSH terms: Postoperative Nausea and Vomiting/epidemiology
Prolonged drug-induced myoclonus: is it related to palonosetron?

Chaw SH, Chan L, Lee PK, Bakar JA, Rasiah R, Foo LL

J Anesth, 2016 12;30(6):1063-1066.
PMID: 27510560 DOI: 10.1007/s00540-016-2228-8

We report a case of drug-induced myoclonus possibly related to palonosetron, a second-generation 5-hydroxytryptamine-3 receptor antagonist which was administered as a prophylaxis for postoperative nausea and vomiting in a 28-year-old female. The recurrent episodes of myoclonus jerk involving the head, neck and shoulder persisted for a period of 4 days. The patient also exhibited an episode of severe bradycardia leading to hypotension 7 h after surgery. To our knowledge, this is the first report presenting these adverse events potentially associated with the use of palonosetron.

Matched MeSH terms: Postoperative Nausea and Vomiting/prevention & control
A brief review of current scientific evidence involving aromatherapy use for nausea and vomiting

Lua PL, Zakaria NS

J Altern Complement Med, 2012 Jun;18(6):534-40.
PMID: 22784340 DOI: 10.1089/acm.2010.0862

OBJECTIVES: The objective of this study was to compile existing scientific evidence regarding the effects of essential oils (EOs) administered via inhalation for the alleviation of nausea and vomiting.
METHODS: CINAHL, PubMed, and EBSCO Host and Science Direct databases were searched for articles related to the use of EOs and/or aromatherapy for nausea and vomiting. Only articles using English as a language of publication were included. Eligible articles included all forms of evidence (nonexperimental, experimental, case report). Interventions were limited to the use of EOs by inhalation of their vapors to treat symptoms of nausea and vomiting in various conditions regardless of age group. Studies where the intervention did not utilize EOs or were concerned with only alcohol inhalation and trials that combined the use of aromatherapy with other treatments (massage, relaxations, or acupressure) were excluded.
RESULTS: Five (5) articles met the inclusion criteria encompassing trials with 328 respondents. Their results suggest that the inhaled vapor of peppermint or ginger essential oils not only reduced the incidence and severity of nausea and vomiting but also decreased antiemetic requirements and consequently improved patient satisfaction. However, a definitive conclusion could not be drawn due to methodological flaws in the existing research articles and an acute lack of additional research in this area.
CONCLUSIONS: The existing evidence is encouraging but yet not compelling. Hence, further well-designed large trials are needed before confirmation of EOs effectiveness in treating nausea and vomiting can be strongly substantiated.

Matched MeSH terms: Nausea/therapy*
Fulltext The prevalence of postoperative symptoms within 24 hours after ambulatory surgery in a University Hospital

Adlin Dasima, A.K., Karis, M.

Journal of Surgical Academia, 2013;3(2):32-38.
MyJurnal

Ambulatory surgery has now becoming increasingly popular and it is generally well accepted. Major complications following ambulatory surgery are very rare but certain postoperative symptoms can be very unpleasant and distressing to the patients. Follow-up phone calls regarding their well being at home following the surgery may give us the clue and allow us to identify certain problems that can be sorted out immediately or as a reference for a better service in future. The present study was carried out to determine the prevalence of common postoperative symptoms and their subsequent effects within 24 hours after ambulatory surgery by follow-up phone calls. We prospectively studied 199 ASA I and II patients, but only 187 patients were analyzed. Patients had undergone general surgery, orthopaedic, urology, gynaecology or ear, nose and throat (ENT) surgery. Pain was scored based on Numerical Rating Scale (NRS). Majority of patients (70.8%) had only mild pain prior to discharge home. At 24 hours postoperatively, pain was the commonest symptom reported (92.5%) followed by sleepiness (72.2%), dizziness (49.7%), sore throat (17.1%), nausea and vomiting (7.5%) and headache (7%). Sleep was mildly affected in nearly 50% of the patients. Fifty seven percent of patients did not need assistance in performing daily activities during the 24 hours, post surgery. Majority of patients were satisfied (81.3%) with ambulatory surgery. In conclusion, pain was the commonest postoperative symptom encountered following the surgery. Sleep was mildly affected by the postoperative symptoms. Most of the patients did not need assistance in performing their daily activities following surgery. All patients were able to return to at least more than 50% of their normal daily activities at 24 hours after the surgery. Overall satisfaction towards ambulatory surgery was good.

Matched MeSH terms: Nausea
Fulltext Ultrasound guided transversus abdominis plane block versus intrathecal morphine for analgesia post caesarean section: which is better?

Aizatul Isla, A.L., Wan Rahiza, W.M., Azrin, M.A., Thohiroh, A.R., Nurlia, Y., Nadia, M.N.

Journal of Surgical Academia, 2013;3(2):39-45.
MyJurnal

The tranversus abdominis plane (TAP) block for postoperative analgesia after caesarean section may confer potential benefits comparable to that of intrathecal opioids. We compared postoperative analgesia, and the incidence of nausea, vomiting, pruritus and sedation between the TAP block and intrathecal morphine (ITM) in patients undergoing Caesarean section. This was a prospective, randomised clinical study. Fifty American Society of Anaesthesiologists physical status I or II patients, planned for elective caesarean section under spinal anaesthesia, were randomly allocated to the TAP group (patients receiving spinal anaesthesia with bilateral TAP block without ITM) or ITM group (patients receiving spinal anaesthesia with ITM without a TAP block). Assessment for pain, postoperative nausea and vomiting, pruritus and sedation was done upon arrival and discharge from recovery, and at 6, 12 and 24 hours, postoperatively in the post natal ward. Results were analysed using analysis of variance (ANOVA). There was no pain at rest in either groups. Both groups experienced pain on movement at the 12th (p = 0.6) and 24th hour (p = 0.4). None of the patients in the TAP group experienced nausea, vomiting, pruritus or sedation. However, these incidences were found to be significantly higher in the ITM group. Ultrasound guided TAP block provided comparable postoperative analgesia to ITM without the side effects of the latter.

Matched MeSH terms: Postoperative Nausea and Vomiting
Fulltext Spinal anaesthesia with bupivacaine and intrathecal morphine versus combined spinal-epidural anaesthesia using Bupivacaine and Epidural infusion of bupivacaine plus fentanyl for postoperative analgesia after hip and knee arthroplasty

Mohd Azizan, G., Karis, M., Noordin, Y.

Journal of Surgical Academia, 2013;3(2):46-53.
MyJurnal

This randomised single-blinded study was conducted to evaluate if there was any difference between spinal anaesthesia with hyperbaric bupivacaine 0.5% and intrathecal morphine 0.2mg and combined-spinal epidural using hyperbaric bupivacaine 0.5% with epidural infusion of bupivacaine 0.1% plus fentanyl 2.0μg/ml for 24 hours, postoperative analgesia following hip and knee arthroplasty, in terms of pain score and side effects (nausea, vomiting, pruritus and respiratory depression). Eighty patients ASA I or ASA II, aged between 18 to 75 years who underwent knee and hip arthroplasty of approximately 3-4 hours, duration were recruited. They were randomly allocated to one of two groups by using computer generated randomised numbers. The pain score during the postoperative period was evaluated using Visual Analogue Score (VAS pain score) and the side effects were documented and treated accordingly. Results showed that patients in Group 1 and Group 2 were comparable in terms of age, gender, height, weight and race. There was no statistical difference in VAS pain score between the two groups at all times intervals. However, patients in Group 1 had a higher incidence of nausea and pruritus than patients in Group 2. None of the patients in either group, experienced respiratory depression. Thus, it was concluded that both intrathecal morphine 0.2mg and epidural infusion of bupivacaine 0.1% plus fentanyl 2.0μg/ml were comparable in providing postoperative analgesia up to 24 hours following hip and knee arthroplasty. Nevertheless, the use of spinal morphine led to a higher incidence of side effects namely nausea and pruritus.

Matched MeSH terms: Nausea
Fulltext Dexamethasone and postoperative capillary glucose levels in type 2 diabetes mellitus

Elliza, R., Nadia, M.N., Azlina, M., Yeoh, C.N., Maryam, B., Hanita, O.

Journal of Surgical Academia, 2018;8(2):11-16.
MyJurnal

Perioperative intravenous (IV) dexamethasone is administered prophylactically for post operative nausea and vomiting. However, its glucocorticoid property which raises blood glucose is of concern, especially among diabetic patients. The surgical stress response also contributes to increased perioperative blood glucose. Prior studies showed higher glucose levels with dexamethasone 8 mg compared to 4 mg, hence we studied the effect of the lower dose amongst diabetic patients. This prospective, single blinded, randomised study recruited forty-six type 2 diabetes mellitus patients planned for surgery under general anaesthesia. They received IV dexamethasone 4 mg or saline (placebo) after induction of anaesthesia. Capillary blood glucose levels were recorded preoperatively, and subsequently at recovery (T0), and at 6, 12, 18 and 24 (T6, T12, T18, T24) hours post-operatively. Median glucose levels were higher at 9.0 [10.5-7.7] mmol/l in the dexamethasone group, versus 7.4 [9.2-5.9] mmol/l in the placebo group at T0, p = 0.022. Similarly at T6, the dexamethasone group recorded higher glucose levels of 11.2 [15.0-9.3] mmol/l, versus 7.7 [9.0-6.2] mmol/l in the placebo group, p = 0.001. This corresponded to a significant difference between the groups, in the change of glucose levels from baseline values, p = 0.042. Subsequent readings at T12, T18, and T24 were comparable between the groups. In conclusion, IV dexamethasone 4 mg in type 2 diabetic patients, resulted in higher glucose levels immediately postoperative and 6 hours later. The change in blood glucose from baseline levels was significant between the groups at 6 hours postoperatively. Glucose levels however remained within acceptable range of approved guidelines in both groups at all recorded intervals.

Matched MeSH terms: Postoperative Nausea and Vomiting
Simulator sickness: a threat to simulator training

Rabihah Ilyas

Journal of Occupational Safety and Health, 2012;9(1):45-52.
MyJurnal

Rapid development of technology has made simulator as a promising training tool. Advantages offered such as interactive and realistic training environments, mistake tolerance and training in hazardous scenario without causing harm to trainee, cost effectiveness, opportunity of training review and training time flexibility makes simulator widely used in aviation training, driver training, medical training and rehabilitation. Despite of these advantages, a major drawback of simulator is simulator sickness. Simulator sickness is a condition caused by inconsistency perceived by our vestibular system. Effected individual reported that they are experiencing nausea, fatigue, postural instability, headaches and difficulty in focusing which linger for hours or days in some cases. This paper will discuss the simulator usage and simulator sickness condition in Malaysia as experienced by researchers and a few organizations that use simulator as their training tool.

Matched MeSH terms: Nausea
Fulltext Conquering pedaphobia: a case study of counselling interventions

Aina Razlin Mohammad Roose

Journal of Cognitive Sciences & Human Development, 2015;1(1):63-73.
MyJurnal

This paper presents a case study of a 22-year-old female client who came for counselling sessions for the purpose of overcoming her pedaphobia. Symptoms, such as, dizziness, nausea, arousal, sweating palm and body shaking were noticed to be visible not only by the presence of a real child, but also by pictures, stories and imaginations of infants. Systematic desensitization technique, a form of Exposure Therapy, was applied to treat the client. It involved relaxation and breathing techniques, and supported by the application of live modelling guided participation. Along with the interventions, Rational Emotive Behaviour Therapy techniques were also applied, such as, thought recording, irrational thoughts identification and disputation, Rational Emotive Imagery (REI), coping self-statement, and forceful self-statement. By the end of the therapy, the client reported to have experienced a decline in the occurrences of symptoms and demonstrated the ability to overcome her phobia.

Matched MeSH terms: Nausea
Fulltext A randomized controlled study comparing subcutaneous pethidine with oral diclofenac for pain relief pain relief after caesarean section

Marzida, M.

JUMMEC, 2009;12(2):63-69.
MyJurnal

It is important to provide effective postoperative analgesia following a Caesarean section because mothers wish to be pain-free, mobile and alert while caring for their babies. The role of regular oral diclofenac as postoperative analgesia was evaluated in a randomized controlled study and it was compared to the established method of parenteral pethidine. Forty healthy women scheduled for elective Caesarean section under spinal anaesthesia with 2-2.5 mg of heavy bupivacaine 0.5% were randomized to receive either 75 mg of oral diclofenac twice daily or 1 mg/kg of subcutaneous pethidine every 8 hourly. Efficacy of pain relief (visual analogue score), patients' satisfaction and side effects such as sedation, nausea and vomiting were recorded for three days. The demographic variables were similar in both groups. Pain relief was adequate and comparable in both groups with similar mean visual analogue score during the second and third day of the study period. However, on the first postoperative day, 60% of the diclofenac group population required rescuemedication consisting of subcutaneous pethidine in order to achieve the same pain scores as those in the pethidine group who did not require any rescue medications. Women who received oral diclofenac reported lower sedation and higher overall satisfaction. The incidence of nausea and vomiting was similar in both groups. This concluded that although oral diclofenac 75mg twice daily may not be superior to the traditional method of subcutaneous pethidine for pain relief following caesarean section, it can still be used alone as an alternative, as it has other benefits of a non-opioid analgesia.

Matched MeSH terms: Nausea
Fulltext The socio-demographic and clinical factors associated with quality of life among patients with brain pathology in a tertiary referral hospital in Malaysia

Das, Priscilla, Naing, NyiNyi, Nadiah Wan-Arfah, Naing Noor Jan, K.O., Yee, Cheng Kueh, Rasalingam, Kantha

JUMMEC, 2019;22(1):50-57.
MyJurnal

Background: This paper investigates the quality of life of brain pathology patients in relation to their sociodemographic
profiles and clinical factors.

Methods: This is a cross-sectional study done at a tertiary referral hospital in Kuala Lumpur. A total of 100
patients were recruited in the study after excluding 22 patients who did not met the exclusion criteria. The
European Organisation for Research and Treatment of Cancer Quality of Life (EORTC QLQ-C30) self-administered
questionnaire was utilized in the study. The Global health status/QoL, Physical functioning, Role functioning,
Emotional functioning, Cognitive functioning, Social functioning, Fatigue, Nausea and vomiting, Pain, Dyspnoea,
Insomnia, Appetite loss, Constipation, Diarrhoea, and Financial difficulties were assessed in this study.

Results: The most severe impairment in functioning was with lowest score of cognitive functioning (mean
score=61) and the most severe symptom was fatigue (mean score=45). There were significant differences in
quality of life scores in different socio-demographic groupsand types of brain pathology patients. Patients aged
below 40 years old or less had better physical functioning, less symptoms of fatigue and insomnia compared
to patients who were more than 40 years old. Male patients faced more financial difficulties compared with
female patients. Patients who were married had increased insomnia compared to the single patients. Employed
patients had better physical functioning and less financial difficulties compared with patients who were
unemployed. Patients who earned >RM 2500.00 monthly had better physical functioning, less symptoms of pain and less financial difficulties than patients who earned ≤RM 2500.00. Patients with qualifications lower
than SPM tended to face more financial difficulties compared to patients with qualifications of SPM or higher.
Meningioma patients had better social functioning compared with others, whereas Carvenoma patients had
better physical functioning. Meningioma patients had more symptoms of insomnia compared with other
patients. All the findings were with p value less than 0.05.

Conclusion: The quality of life of patients with brain pathology is affected by socio-demographic factors and
clinical diagnoses. Efforts should be made to improve the overall quality of life of these patients.

Matched MeSH terms: Nausea
Blurring of vision due to VLM

Kamala D, Rohela M, Khairul Anuar A, Jamaiah I

JUMMEC, 1999;4:115-116.

A thirty two year old taxi driver presented with cotnplaints of headache, nausea, vomiting and blurring of vision of the left eye of two days duration. He was found to have an acute anterior uveities and secondary glaucoma. On further examination patient was also found to have a neuroretinitis and phlebitis in the same eye. A worm was found in the anterior chamber and it was removed via a limbal incision under local anaesthesia. The worm-like structure sent to the Department of Parasitology was identified as Gnathostoma spinigerum. he patient was treated with topical eye drops and oral steroids at the same time to reduce the inflammation. No neurological symptoms were seen. The patient was not available for further evaluation and followup. KEYWORDS: Blurring of vision, Gnathostomiasis

Matched MeSH terms: Nausea
Immigrant Health Study. 5. Faecal pathogens in foreign workers. [Abstract]

Suresh K, Rajah S, Khairul Anuar A, Anuar Zaini MZ, Saminathan R, Ramakrishnan S

JUMMEC, 1998;3:62-63.

One hundred seventy three stool samples were obtained from workers from Indonesia, Bangladesh, Myanmar, Pakistan and others. The stool samples were examined for Ascaris, Trichuris, Hookworm, Schistosomes, trematodes and cestodes. The protozaon parasites included Bnlantidiirrir coli, Blastocystis honlinis, Cyclospora cryptosporidium, Microsporidiirin, Entamoeeba histolytica, Giardia lamblia, lodamoeba butschilli. Of these 21.9%, 17% and 1% of the population studied had hookworm, Trichuris trichiura and Ascaris lumbricoides infections respectively. There was only one Indonesian reported to have Hymenolepis nana infections. The most common protozoan seen in the faecal sample is Blastocystis hominis (36%) followed by Giardia lamblia (4%). Most of the stools positive with these faecal pathogens were semisolid especially the ones positive for the protozoan. We have also shown Blastocystis from the Indonesian workers show very small forms almost 3-5 in size compared to the normal size of 10-15 pm in the other nationalities. These forms show a distinct growth profile in cultures and appears to be more resistant to temperature changes than Blastocystis seen in the other two nationalities. The high incidence of Hookworm and Trichuris infections is suggestive that if these workers are left unheated their productivity will be hampered by other possible serious complications such as anaemia, weight loss, abdominal pain with diarrhoea1 stools and nausea. There are increasing reports that Blastocystis hominis is pathogenic. Flatulence, abdominal discomfort and the increase in the frequency of the passing watery stool has been noted in patients infected with the parasite. Since most of the workers are generally housed in crowded rooms it is highly likely that this will facilitate transmission through the faecal-oral route of both Giardia and Blastocystis possibly increasing the incidences of these infections among workers.

Matched MeSH terms: Nausea
Fulltext Effect of Acupressure at P6 on Nausea and Vomiting in Women with Hyperemesis Gravidarum: A Randomized Controlled Trial

Mohd Nafiah NA, Chieng WK, Zainuddin AA, Chew KT, Kalok A, Abu MA, et al.

Int J Environ Res Public Health, 2022 Sep 01;19(17).
PMID: 36078602 DOI: 10.3390/ijerph191710886

Hyperemesis gravidarum is characterized by severe nausea and vomiting. This study aims to illustrate the efficacy of acupressure at P6 in treating nausea and vomiting in hyperemesis gravidarum. This parallel randomized controlled trial was conducted from 2016-2017 in a tertiary hospital. Hospitalized women with ≤16 weeks of gestation and moderate to severe nausea and vomiting classified using a modified PUQE score were randomly assigned in a 1:1 ratio to either apply an acupressure wristband at the P6 point three times daily or to receive regular doses of intravenous antiemetics. The primary outcome was differences in modified PUQE scores among the groups. The secondary outcomes were differences in the rate of urine ketone clearance and the frequency of requiring rescue antiemetics. Ninety women were equally randomized into two groups, with no dropout. There was a statistically significant difference in the degrees of nausea and vomiting between the groups at 8, 16, and 24 hours post-admission (p8hours= 0.001, p16hours = 0.006, and p24hours = 0.001). The requirement of antiemetics and the rate of urine ketone clearance between the two groups were also statistically significant, at p = 0.001 and p = 0.02 respectively. There were no side effects in either group. The P6 acupressure was efficacious in alleviating nausea and vomiting among hyperemesis gravidarum women. The trial was retrospectively registered on ClinicalTrials.gov (NCT05175079).

Matched MeSH terms: Nausea/drug therapy
Fulltext Issues in management of acute appendicitis in pregnancy

Nalliah, Sivalingam, Wijesuriya, Lionel, Venugopal, Subramani

International e-Journal of Science, Medicine & Education, 2011;5(1):2-9.
MyJurnal

Acute appendicitis is an infrequent yet the commonest surgical emergency in pregnancy occurring in about 1:1500 pregnancies. The classical abdominal pain in the right lower quadrant of the abdomen is the only reliable clinical sign. Delay in diagnosis is attributed to presence of symptoms commonly seen in pregnancy like nausea and vomiting and difficulty in localizing abdominal pain due to displacement of the appendix with advancing gestation. Perforated appendix and generalized peritonitis impacts adversely on pregnancy contributing to increases in miscarriage, pre-term delivery, fetal loss and even maternal mortality. Imaging studies like abdominal ultrasonogram, helical computerized tomography and magnetic imaging have been utilized to complement clinical suspicion and decrease ‘negative appendectomies’ but robust data on their routine use is awaited. Although the laparoscopic approach is a useful diagnostic and therapeutic tool in early pregnancy, its use as the primary approach for appendicectomy in pregnancy requires further evaluation as increases in the incidence of fetal loss of 5.6% has been reported compared to 3.1% in open access surgery

Matched MeSH terms: Nausea
Fulltext Favipiravir Use in COVID-19: Analysis of Suspected Adverse Drug Events Reported in the WHO Database

Kaur RJ, Charan J, Dutta S, Sharma P, Bhardwaj P, Sharma P, et al.

Infect Drug Resist, 2020;13:4427-4438.
PMID: 33364790 DOI: 10.2147/IDR.S287934

Background: COVID-19 caused by SARS-CoV-2 virus emerged as an unprecedented challenge to discover effective drugs for its prevention and cure. Hyperinflammation-induced lung damage is one of the poor prognostic indicators causing a higher rate of morbidity and mortality of COVID-19 patients. Favipiravir, an antiviral drug, is being used for COVID-19 treatment, and we currently have limited information regarding its efficacy and safety. Thus, the present study was undertaken to evaluate the adverse drug events (ADEs) reported in the WHO pharmacovigilance database.
Methods: This study analyzed all suspected ADEs related to favipiravir reported from 2015. The reports were analyzed based on age, gender, and seriousness of ADEs at the System Organ Classification (SOC) level and the individual Preferred Term (PT) level.
Results: This study is based on 194 ADEs reported from 93 patients. Most frequent ADEs suspected to be caused by the favipiravir included increased hepatic enzymes, nausea and vomiting, tachycardia, and diarrhea. Severe and fatal ADEs occurred more frequently in men and those over the age of 64 years. Blood and lymphatic disorders, cardiac disorders, hepatobiliary disorders, injury poisoning, and procedural complications were more common manifestations of severe ADEs.
Conclusion: This study revealed that favipiravir appears to be a relatively safe drug. An undiscovered anti-inflammatory activity of favipiravir may explain the improvement in critically ill patients and reduce inflammatory markers. Currently, the data is based on very few patients. A more detailed assessment of the uncommon ADEs needs to be analyzed when more information will be available.

Matched MeSH terms: Nausea
Fulltext Docking based screening and molecular dynamics simulations to identify potential selective PDE4B inhibitor

Al-Nema M, Gaurav A, Lee VS

Heliyon, 2020 Sep;6(9):e04856.
PMID: 32984588 DOI: 10.1016/j.heliyon.2020.e04856

Inhibition of phosphodiesterase 4 (PDE4) is a promising therapeutic approach for the treatment of inflammatory pulmonary disorders, i.e. asthma and chronic obstructive pulmonary disease. However, the treatment with non-selective PDE4 inhibitors is associated with side effects such as nausea and vomiting. Among the subtypes of PDE4 inhibited by these inhibitors, PDE4B is expressed in immune, inflammatory and airway smooth muscle cells, whereas, PDE4D is expressed in the area postrema and nucleus of the solitary tract. Thus, PDE4D inhibition is responsible for the emetic response. In this regard, a selective PDE4B inhibitor is expected to be a potential drug candidate for the treatment of inflammatory pulmonary disorders. Therefore, a shared feature pharmacophore model was developed and used as a query for the virtual screening of Maybridge and SPECS databases. A number of filters were applied to ensure only compounds with drug-like properties were selected. Accordingly, nine compounds have been identified as final hits, where HTS04529 showed the highest affinity and selectivity for PDE4B over PDE4D in molecular docking. The docked complexes of HTS04529 with PDE4B and PDE4D were subjected to molecular dynamics simulations for 100ns to assess their binding stability. The results showed that HTS04529 was bound tightly to PDE4B and formed a more stable complex with it than with PDE4D.

Matched MeSH terms: Nausea
Rome Foundation-Asian working team report: Asian functional gastrointestinal disorder symptom clusters

Siah KTH, Gong X, Yang XJ, Whitehead WE, Chen M, Hou X, et al.

Gut, 2018 Jun;67(6):1071-1077.
PMID: 28592440 DOI: 10.1136/gutjnl-2016-312852

OBJECTIVE: Functional gastrointestinal disorders (FGIDs) are diagnosed by the presence of a characteristic set of symptoms. However, the current criteria-based diagnostic approach is to some extent subjective and largely derived from observations in English-speaking Western patients. We aimed to identify latent symptom clusters in Asian patients with FGID.
DESIGN: 1805 consecutive unselected patients with FGID who presented for primary or secondary care to 11 centres across Asia completed a cultural and linguistic adaptation of the Rome III Diagnostic Questionnaire that was translated to the local languages. Principal components factor analysis with varimax rotation was used to identify symptom clusters.
RESULTS: Nine symptom clusters were identified, consisting of two oesophageal factors (F6: globus, odynophagia and dysphagia; F9: chest pain and heartburn), two gastroduodenal factors (F5: bloating, fullness, belching and flatulence; F8 regurgitation, nausea and vomiting), three bowel factors (F2: abdominal pain and diarrhoea; F3: meal-related bowel symptoms; F7: upper abdominal pain and constipation) and two anorectal factors (F1: anorectal pain and constipation; F4: diarrhoea, urgency and incontinence).
CONCLUSION: We found that the broad categorisation used both in clinical practice and in the Rome system, that is, broad anatomical divisions, and certain diagnoses with long historical records, that is, IBS with diarrhoea, and chronic constipation, are still valid in our Asian societies. In addition, we found a bowel symptom cluster with meal trigger and a gas cluster that suggests a different emphasis in our populations. Future studies to compare a non-Asian cohort and to match to putative pathophysiology will help to verify our findings.

Matched MeSH terms: Nausea
Fulltext Extraction, Analytical and Advanced Methods for Detection of Allura Red AC (E129) in Food and Beverages Products

Rovina K, Siddiquee S, Shaarani SM

Front Microbiol, 2016;7:798.
PMID: 27303385 DOI: 10.3389/fmicb.2016.00798

Allura Red AC (E129) is an azo dye that widely used in drinks, juices, bakery, meat, and sweets products. High consumption of Allura Red has claimed an adverse effects of human health including allergies, food intolerance, cancer, multiple sclerosis, attention deficit hyperactivity disorder, brain damage, nausea, cardiac disease and asthma due to the reaction of aromatic azo compounds (R = R' = aromatic). Several countries have banned and strictly controlled the uses of Allura Red in food and beverage products. This review paper is critically summarized on the available analytical and advanced methods for determination of Allura Red and also concisely discussed on the acceptable daily intake, toxicology and extraction methods.

Matched MeSH terms: Nausea
Gastric foveolar cell hyperplasia and its role in postoperative vomiting in patients with infantile hypertrophic pyloric stenosis

Tan HL, Blythe A, Kirby CP, Gent R

Eur J Pediatr Surg, 2009 Apr;19(2):76-8.
PMID: 19242904 DOI: 10.1055/s-2008-1039199

Foveolar cell hyperplasia (FCH) has been reported as a rare cause of persistent gastric outlet obstruction in patients with infantile hypertrophic pyloric stenosis (IHPS), which, if present, requires excision of the gastric foveolar folds to resolve the persistent obstruction. This is a review of patients with IHPS diagnosed on abdominal ultrasound to determine the incidence of FCH in IHPS and to evaluate whether it has a causal role in postoperative vomiting following pyloromyotomy for IHPS.

Matched MeSH terms: Postoperative Nausea and Vomiting/etiology*

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