Showing 10 results for Nayeri
Gd Nayeri Kaman, M Taherian Fard,
Volume 11, Issue 2 (8-1997)
Abstract
The role of the ventromedial nuclei of the hypothalamus (VMN) in food
behavior was studied in adult male rats, allocated in 3 groups: control, sham and
lesioned. Electrolytic lesions were induced stereotaxically (1.2 mA, 15 sec).
Results revealed a significant decrease (p
Gd Nayeri Kaman, S Keshtgar,
Volume 13, Issue 1 (5-1999)
Abstract
In order to study the effect of ultrasound (US) on bone healing, a complete
transverse fracture was made in the right radius of adult male rabbits by a cutter.
52 rabbits were used: group I. control (n= 17): group 2. test (n:=: 15): group 3, intact
(n= I) and group 4 (n= 12) who were examined only for evaluation of the cutter
effects in detail. 7 animals were operated with a Gigli saw. The test group received
US treatment at 0.5 W /cm2• I MHz, 2 msec on-8 msec off for 10 min/day, from the
day after surgery until complete fusion was observed. Radiological studies
indicated that mean healing duration and rate of healing was significantly more in
the test group than in controls. Histological evaluation showed the presence of
ossified callus at week 3 in the test group. but in controls fibrous callus was still
seen at week 5 after surgery. Bone mineral analyses by stereoelectron microscope
showed that the mineral component of the treated bone revert to normal, similar
to the composition of intact bone. and sooner than that of the control. However, our
results revealed no deleterious effects of US on treated and untreated ipsilateral and
contralateral bones during the experiment or one month after complete fusion of
the bones, at which time US was terminated
Gd Nayeri Kaman, S Keshtgar,
Volume 15, Issue 3 (11-2001)
Abstract
We have already shown that low intensity pulsed ultrasonic treatment increases
rabbit radial fracture healing. The present experiment was undertaken to
find out the best duration for treatment. A complete transverse fracture was made
in the right radial bones of21 adult male rabbits by a Stanley knife. The animals
were divided into 4 groups: group 1, control groups 2, 3, and 4, experimental
groups, which received ultrasound (0.5 W /cm2, 1MHz, 2 msec on-8 msec off) for
durations of 5,10, and 15 min/day, respectively, from the day after surgery until
complete fusion was observed. Radiological studies indicated that mean duration
of healing was longer and rate of healing was lower in the control compared with
those of the experimental groups (p<0.05). However, group 3 showed the least
mean healing duration and group 2 and 3 showed the highest healing rate. Our
results revealed no deleterious effects of ultrasound on treated and untreated ipsilateral
and contralateral bones during the experiment or one month after complete
fusion of the bones, at which time ultrasound treatment was terminated.
Gd Nayeri Kaman, F Motiollah,
Volume 16, Issue 1 (5-2002)
Abstract
In order to evaluate the effects of phenytoin on the reproductive system of
rats in detail, 60 male rats were divided equally into 6 groups: 1-5 received 10
mg/kg/day phenytoin IP for 1,2,3,4 and 5 weeks, respectively. However, group 5
did not receive any phenytoin for the last 5th week. The control group (group 6)
did not receive any treatment. The results revealed that phenytoin does not have
any effect on body weight, weight of testes, seminal vesicle and prostate, serum
testosterone and sperm count taken from left and right vas deferenses. However,
the percentage of total motile sperm and sperm with full and sluggish motility
decreased and the percentage of low motile sperm increased in all experimental
groups. Nevertheless, phenytoin caused atrophy and hypoplasia in seminiferous
tubules and not Leydig cells. These pathological changes were dose-dependent
and more pronounced in the left testis. But phenytoin caused more changes in
sperm count and motility of the right testis. This phenomenon was discussed i n
relation t o the existence of asymmetrical control b y the hypothalamus, and compensation
of the left testis. In summary, it could be concluded that phenytoin
affected the seminiferous tubules directly and decreased the total number of motile
sperm. It was also discussed that these effects are not reversible after termination
of injection.
F. Nayeri, F. Nili, E. Amini, N. Khanafshar, F. Zayeri, P. Palizian, M. Delfan,
Volume 19, Issue 1 (5-2005)
Abstract
ABSTRACT
Background: In 1958, Silverman demonstrated that maintenance ofbody temperature reduces mortality in low birth weight infants. From the early 1990s it was already recognized that adequate environmental warmth was essential in the case of newborns. However, neonatal hypothermia continues to be a significant issue in developing countries.
Methods: In order to describe the incidence and severity of hypothermia after delivery and to determine the possibility ofrelatedmortalityrisk among neonates in a tettiary nursery, we measured the body temperature on admission of 898 consecutive inborn infants after birth by a low-reading thermometer. Body temperature less than 36.5°C was designated as 'hypothermia' . In such cases the infants were re-warmed according to WHO recommendations. Their body temperature was checked and recorded every hour and their final outcome was noted.
Results: The overall incidence of hypothermia was 53.2%. 456 (i.e., 50.2% of) infants had mild hypothermia (35> T> 36.5) while 22 (2.5%) of them had moderate to severe hypothermia (T <35°C). The incidence and severity of hypothermia was found to be significantly associated with bitih weight (p= 0.000) and gestational age (p= 0.000). The duration of re-warming was also correlated with birth weight (p= 0.000). Logistic regression analysis showed that the mortality rate of hypothermic neonates is 3.64 times that of the normotherms. The risk of death was higher in the moderate to severe hypothermic groups than in the mild hypothermic infants.
Conclusion: In our study, the incidence of hypothermia was found to be high with both the incidence and severity to be significantly associated with birth weight and gestational age. The risk of death was recognized to be higher in the hypothermic newborns than non-hypothermic ones.
Fatemeh Nayeri, Firozeh Nili, Bita Ebrahim, Zohreh Olomie Yazdi, Zahra Maliki,
Volume 28, Issue 1 (1-2014)
Abstract
Background :Although transfusion is a common procedure for treating anemia of prematurity, there is no specific protocol for blood transfusion in premature newborns. So in this study we investigate whether application of a strict protocol has any statistically significant effect on reduction of blood transfusion.
Methods : In this study, first group admitted in NICU during 2005 - 2006 and the second group admitted during 2006 - 2007. Whereas in the first group the blood transfusion performed based on neonatologists' opinion following consultations with a pediatric hematologist, blood transfusion in the second group was based on the Shannon's protocol.
Results : During 2005-2006, out of 206 cases, 71 cases (%34.5) underwent blood infusion. During 2006-2007, out of 211 cases, 56 (%26.5) received blood transfusion based on the Shannon's strict protocol. Although the number of cases decreased, no significant difference was found betweenthe two groups (p=0.07).
Conculsion : Applying strict criteria alone is not effective in reducing the frequency of transfusion in infants.
Fatemeh Ghaffari, Nahid Dehghan-Nayeri, Mahboubeh Shali,
Volume 29, Issue 1 (1-2015)
Abstract
Background: Providing holistic nursing care when there is a shortage of personnel and equipment exposes nurses to stress and a higher risk of occupational burnout. Humour can promote nurses’ health and influence nursing care. The aim of this study was to describe nurses’ experiences of humour in clinical settings and factors affecting it.
Methods : This qualitative study investigated nurses’ experiences of humour. Five hospitals affiliated to Tehran University of Medical Sciences provided the setting for this study. The participants comprised of 17 nurses with master’s and Baccalaureate degrees (BSN) in nursing. These nurses worked at educational hospitals affiliated to Tehran University of Medical Sciences and had minimum work experience of 12 months in various clinical wards. Nurses from all wards were invited to participate in this study. The data were collected through semi structure interviews using guides comprising probing questions. Telephonic interviews were used to further supplement the data. The data were analysed using conventional content analysis.
Results : The data were classified into five themes including the dynamics of humour, condition enforcement, Risk making probability, Instrumental use and Change: opportunities and threats.
Conclusion : Understanding nurses’ perceptions and experiences of humour helps identify its contributing factors and provides valuable guidelines for enhancing nurses and patients’ mental, emotional and physical health. Spreading a culture of humour through teaching methods can improve workplace cheerfulness and highlights the importance of humour in patient care in nurses and nursing students.
Nahid Dehghan-Nayeri, Fatemeh Ghaffari, Mahboubeh Shali,
Volume 29, Issue 1 (1-2015)
Abstract
Background: The main objective of nursing is to provide comprehensive nursing care that is appropriate to patients’ needs. However, the incidence of missed nursing care compromises the provision of comprehensive and safe care and threatens patients’ lives. Thus, this in-depth qualitative study aimed to explore nurses’ experiences of missed care and factors affecting it. The aim of this study was to describe nurses’ experiences of missed care in clinical practice.
Methods: In this study, qualitative research methodology, with a content analysis approach was used. The sample included 23 nurses in referral teaching hospitals. Data were collected through focus group discussions, face-to-face and telephonic interviews, using semi-structured questions.
Results: Three themes, comprising several sub-themes, emerged, and included contextual conditions, coercion, and deprivation.
Conclusion: The results indicated that organizational and personal factors facilitate the incidence of coerced, missed nursing care. High quality of care, the prevention of missed care incidences and patient safety depend on the provision of adequate staff, appropriate equipment and a sense of responsibility for patients’ care needs among nurses.
Nahid Dehghan Nayeri, Esmaeil Shariat, Zahra Tayebi, Majid Ghorbanzadeh,
Volume 31, Issue 1 (1-2017)
Abstract
Background: The main philosophy of postgraduate preparation for working in critical care units is to ensure the safety and quality of
patients’ care. Increasing the complexity of technology, decision-making challenges and the high demand for advanced communication
skills necessitate the need to educate learners. Within this aim, a master’s degree in critical care nursing has been established in Iran.
Current study was designed to collect critical care nursing students’ experiences as well as their feedback to the field critical care nursing.
Methods: This study used qualitative content analysis through in-depth semi-structured interviews. Graneheim and Lundman method
was used for data analysis.
Results: The results of the total 15 interviews were classified in the following domains: The vision of hope and illusion; shades of
grey attitude; inefficient program and planning; inadequacy to run the program; and multiple outcomes: Far from the effectiveness.
Overall findings indicated the necessity to review the curriculum and the way the program is implemented.
Conclusion: The findings of this study provided valuable information to improve the critical care-nursing program. It also facilitated
the next review of the program by the authorities.
Nahid Dehghan-Nayeri, Mahboobeh Shali, Atefeh Vaezi, Nasrin Navabi, Fatemeh Ghaffari,
Volume 33, Issue 1 (2-2019)
Abstract
Background: Cardiac patients’ beliefs about illness and treatment can disturb their treatment process, treatment regimen adherence, and daily activities. Exploring these beliefs by the use of appropriate, valid, and accurate scales can be helpful in false beliefs reforming by nurses and finally, result in life quality promotion. Therefore, this study is conducted to design and psychometry a questionnaire probing about cardiac patients’ beliefs about illness and treatment.
Methods: The sequential combination exploratory mixed methods design was used to develop the questionnaire format, which involved two sections: the quantitative and qualitative step. The qualitative step included probing the role of cultural beliefs about illness and treatment in two steps, including the literature and related tools review and fieldwork (semi-structured interviews with cardiac patients). Seventeen studies were checked in the literature review. Twenty-two cardiac patients were selected and interviewed by purposive sampling. The interviews continued up to the data saturation. The data analysis was conducted in both steps using conventional content analysis and textual content analysis. The quantitative step was a methodology study accomplished in two parts. The questionnaire items were formed using the data and items pool in the first part while the psychometric properties of the questionnaire were checked using face, content and construct validity and the reliability was probed using internal consistency and stability in the second part. The data were transferred into SPSS software program, version 18.0 for Windows (α<0.05).
Results: 319 codes were extracted from the analyzing phase which formed 6 categories including prognosis, prevention, contexts, treatment efficiency, mentality and lifestyle as well as 9 sub-categories including understanding the danger, attitude toward disease, attitude toward treatment, society’s culture, feeling hopeless, treatment regimen ignorance, self-curing, trying to survive and physical outcomes.
The items pool was formed using literature reviews and interviews. A 30-itemed questionnaire was formed after the psychometric process. The Kaiser-Meyer-Olkin (KMO) index and the Bartlett’s test of sphericity showed good results. Six components from the exploratory content analysis including prognosis, prevention, contexts, treatment efficiency, mentality, and lifestyle gained 51.7% variance totally. The interclass correlation coefficient was 0.83 in responding to the items for two times.
Conclusion: This study developed a questionnaire about cardiac patients’ beliefs regarding their illness and treatment. It can be used for the educational, research, and treatment purposes as a questionnaire with short, easy, and grammatically simple items that have appropriate validity and reliability. Using this scale can be helpful in evaluating clients’ beliefs and recognize their educational needs.
