1.Agriculture wastes conversion for biofertilizer production using beneficial microorganisms for sustainable agriculture applications
Siti Zulaiha Hanapi ; Hassan M. Awad ; Sheikh Imranudin Sheikh Ali ; Siti Hajar Mat Sarip ; Mohamad Roji Sarmidi ; Ramlan Aziz
Malaysian Journal of Microbiology 2013;9(1):60-67
Aims: The emphasis of this study is to generate new valuable bioproducts from non-toxic cleaning waste for
environmental healing technology.
Methodology and Results: Comparisons between different types of biofertilizer formulations and the field trial
effectiveness were done. Results indicated that biofertilizer C contained the highest N value (1.8%) when compared with biofertilizers B and A, which only contained 1.7% and 1.4%, respectively. Biofertilizer A showed significant difference in the total count of yeast, mould, ammonia oxidizing bacteria and nitrate oxidizing bacteria compared to biofertilizer B and
C. Meanwhile, biofertilizer C was found to be significantly different from others in Lactobacillus sp. and nitrogen-fixing bacteria count. Photosynthetic total count and Actinomycetes sp. were not noticed in all formulations tested.
Conclusion, significance and impact of study: The findings of this study suggest that biofertilizer A is suitable to be used as a promotional biofertilizer in flower and fruit production, biofertilizer B can be used for a leafy crop, while biofertilizer C is good for the growth of roots and stem of plants.
2.Isolation and molecular characterization of Brucella melitensis from seropositive goats in Peninsula Malaysia
Bamaiyi, P.H. ; Hassan, L. ; Khairani-Bejo, S. ; Zainal Abidin, M. ; Ramlan, M. ; Krishnan, N. ; Adzhar, A. ; Abdullah, N. ; Hamidah, N.H.M. ; Norsuhanna, M.M. ; Hashim, S.N.
Tropical Biomedicine 2012;29(4):513-518
A study was carried out to isolate Brucella melitensis using established
bacteriological and PCR techniques in Brucella seropositive goats in farms in Selangor, Negeri
Sembilan, Melaka and Pulau Pinang. Brucella melitensis was isolated from 7 of 134 reactors
with the highest isolation from the vaginal swabs (57.14%) followed by the spleen (28.57%),
uterine fluid (14.29%). No Brucella was isolated from the lymph nodes. PCR confirmed all the
seven isolates as B. melitensis and isolates were phylogenetically related to other isolates
from India, Iran, and Israel but most closely related to isolates from Singapore.
3.Endotracheal intubation using a spiral endotracheal tube effectively reduces total tube handling time in children aged one month to six years using a McGrathTM video laryngoscope: a prospective randomized trial
Rahendra RAHENDRA ; Fajar SESARIO ; Andi Ade Wijaya RAMLAN ; Raihanita ZAHRA ; Christopher KAPUANGAN ; Arif Hari Martono MARSABAN ; Aries PERDANA
Anesthesia and Pain Medicine 2024;19(Suppl 1):S113-S120
Airway management in children is challenging because of the smaller size, different proportions of anatomical structures compared to adults, and a higher risk of hypoxemia. Efforts to improve the efficiency of pediatric intubation can be made by manually twisting a spiral endotracheal tube (ETT) using a flexible stylet to manipulate its shape and angle. Methods: This controlled trial randomized fifty children aged one month to six years who underwent elective surgery under general anesthesia into two groups (spiral ETT [sETT] and no-stylet ETT/standard ETT). The sETT was formed by twisting the ETT using a handmade tool. The primary objective was to determine the effectiveness of the sETT compared to the standard ETT in reducing intubation time. Secondary objectives were ETT placement accuracy, first-attempt intubation success rate, and adverse effects. Results: The mean total tube handling time in the sETT group was significantly shorter compared to the no-stylet ETT group (sETT 16.8 ± 3.6 vs. standard ETT 18.8 ± 3.7 seconds; P = 0.049). sETT placement had a significantly greater central placement accuracy (odds ratio, 4.846; 95% confidence interval, 1.287-18.255; P = 0.015). However, first-attempt successful intubation rate (sETT 80% vs. standard ETT 64%, P = 0.208) and total intubation time (sETT: 46.5 ± 5.2 vs. standard ETT 48.4 ± 4.9 seconds; P = 0.205) were not significantly different. No adverse effects were observed for either ETT type. Conclusions: Spiral ETT effectively reduces total tube handling time and improves ETT placement accuracy in children using video laryngoscopy.
4.Endotracheal intubation using a spiral endotracheal tube effectively reduces total tube handling time in children aged one month to six years using a McGrathTM video laryngoscope: a prospective randomized trial
Rahendra RAHENDRA ; Fajar SESARIO ; Andi Ade Wijaya RAMLAN ; Raihanita ZAHRA ; Christopher KAPUANGAN ; Arif Hari Martono MARSABAN ; Aries PERDANA
Anesthesia and Pain Medicine 2024;19(Suppl 1):S113-S120
Airway management in children is challenging because of the smaller size, different proportions of anatomical structures compared to adults, and a higher risk of hypoxemia. Efforts to improve the efficiency of pediatric intubation can be made by manually twisting a spiral endotracheal tube (ETT) using a flexible stylet to manipulate its shape and angle. Methods: This controlled trial randomized fifty children aged one month to six years who underwent elective surgery under general anesthesia into two groups (spiral ETT [sETT] and no-stylet ETT/standard ETT). The sETT was formed by twisting the ETT using a handmade tool. The primary objective was to determine the effectiveness of the sETT compared to the standard ETT in reducing intubation time. Secondary objectives were ETT placement accuracy, first-attempt intubation success rate, and adverse effects. Results: The mean total tube handling time in the sETT group was significantly shorter compared to the no-stylet ETT group (sETT 16.8 ± 3.6 vs. standard ETT 18.8 ± 3.7 seconds; P = 0.049). sETT placement had a significantly greater central placement accuracy (odds ratio, 4.846; 95% confidence interval, 1.287-18.255; P = 0.015). However, first-attempt successful intubation rate (sETT 80% vs. standard ETT 64%, P = 0.208) and total intubation time (sETT: 46.5 ± 5.2 vs. standard ETT 48.4 ± 4.9 seconds; P = 0.205) were not significantly different. No adverse effects were observed for either ETT type. Conclusions: Spiral ETT effectively reduces total tube handling time and improves ETT placement accuracy in children using video laryngoscopy.
5.Endotracheal intubation using a spiral endotracheal tube effectively reduces total tube handling time in children aged one month to six years using a McGrathTM video laryngoscope: a prospective randomized trial
Rahendra RAHENDRA ; Fajar SESARIO ; Andi Ade Wijaya RAMLAN ; Raihanita ZAHRA ; Christopher KAPUANGAN ; Arif Hari Martono MARSABAN ; Aries PERDANA
Anesthesia and Pain Medicine 2024;19(Suppl 1):S113-S120
Airway management in children is challenging because of the smaller size, different proportions of anatomical structures compared to adults, and a higher risk of hypoxemia. Efforts to improve the efficiency of pediatric intubation can be made by manually twisting a spiral endotracheal tube (ETT) using a flexible stylet to manipulate its shape and angle. Methods: This controlled trial randomized fifty children aged one month to six years who underwent elective surgery under general anesthesia into two groups (spiral ETT [sETT] and no-stylet ETT/standard ETT). The sETT was formed by twisting the ETT using a handmade tool. The primary objective was to determine the effectiveness of the sETT compared to the standard ETT in reducing intubation time. Secondary objectives were ETT placement accuracy, first-attempt intubation success rate, and adverse effects. Results: The mean total tube handling time in the sETT group was significantly shorter compared to the no-stylet ETT group (sETT 16.8 ± 3.6 vs. standard ETT 18.8 ± 3.7 seconds; P = 0.049). sETT placement had a significantly greater central placement accuracy (odds ratio, 4.846; 95% confidence interval, 1.287-18.255; P = 0.015). However, first-attempt successful intubation rate (sETT 80% vs. standard ETT 64%, P = 0.208) and total intubation time (sETT: 46.5 ± 5.2 vs. standard ETT 48.4 ± 4.9 seconds; P = 0.205) were not significantly different. No adverse effects were observed for either ETT type. Conclusions: Spiral ETT effectively reduces total tube handling time and improves ETT placement accuracy in children using video laryngoscopy.
6.Endotracheal intubation using a spiral endotracheal tube effectively reduces total tube handling time in children aged one month to six years using a McGrathTM video laryngoscope: a prospective randomized trial
Rahendra RAHENDRA ; Fajar SESARIO ; Andi Ade Wijaya RAMLAN ; Raihanita ZAHRA ; Christopher KAPUANGAN ; Arif Hari Martono MARSABAN ; Aries PERDANA
Anesthesia and Pain Medicine 2024;19(Suppl 1):S113-S120
Airway management in children is challenging because of the smaller size, different proportions of anatomical structures compared to adults, and a higher risk of hypoxemia. Efforts to improve the efficiency of pediatric intubation can be made by manually twisting a spiral endotracheal tube (ETT) using a flexible stylet to manipulate its shape and angle. Methods: This controlled trial randomized fifty children aged one month to six years who underwent elective surgery under general anesthesia into two groups (spiral ETT [sETT] and no-stylet ETT/standard ETT). The sETT was formed by twisting the ETT using a handmade tool. The primary objective was to determine the effectiveness of the sETT compared to the standard ETT in reducing intubation time. Secondary objectives were ETT placement accuracy, first-attempt intubation success rate, and adverse effects. Results: The mean total tube handling time in the sETT group was significantly shorter compared to the no-stylet ETT group (sETT 16.8 ± 3.6 vs. standard ETT 18.8 ± 3.7 seconds; P = 0.049). sETT placement had a significantly greater central placement accuracy (odds ratio, 4.846; 95% confidence interval, 1.287-18.255; P = 0.015). However, first-attempt successful intubation rate (sETT 80% vs. standard ETT 64%, P = 0.208) and total intubation time (sETT: 46.5 ± 5.2 vs. standard ETT 48.4 ± 4.9 seconds; P = 0.205) were not significantly different. No adverse effects were observed for either ETT type. Conclusions: Spiral ETT effectively reduces total tube handling time and improves ETT placement accuracy in children using video laryngoscopy.
7.Endotracheal intubation using a spiral endotracheal tube effectively reduces total tube handling time in children aged one month to six years using a McGrathTM video laryngoscope: a prospective randomized trial
Rahendra RAHENDRA ; Fajar SESARIO ; Andi Ade Wijaya RAMLAN ; Raihanita ZAHRA ; Christopher KAPUANGAN ; Arif Hari Martono MARSABAN ; Aries PERDANA
Anesthesia and Pain Medicine 2024;19(Suppl 1):S113-S120
Airway management in children is challenging because of the smaller size, different proportions of anatomical structures compared to adults, and a higher risk of hypoxemia. Efforts to improve the efficiency of pediatric intubation can be made by manually twisting a spiral endotracheal tube (ETT) using a flexible stylet to manipulate its shape and angle. Methods: This controlled trial randomized fifty children aged one month to six years who underwent elective surgery under general anesthesia into two groups (spiral ETT [sETT] and no-stylet ETT/standard ETT). The sETT was formed by twisting the ETT using a handmade tool. The primary objective was to determine the effectiveness of the sETT compared to the standard ETT in reducing intubation time. Secondary objectives were ETT placement accuracy, first-attempt intubation success rate, and adverse effects. Results: The mean total tube handling time in the sETT group was significantly shorter compared to the no-stylet ETT group (sETT 16.8 ± 3.6 vs. standard ETT 18.8 ± 3.7 seconds; P = 0.049). sETT placement had a significantly greater central placement accuracy (odds ratio, 4.846; 95% confidence interval, 1.287-18.255; P = 0.015). However, first-attempt successful intubation rate (sETT 80% vs. standard ETT 64%, P = 0.208) and total intubation time (sETT: 46.5 ± 5.2 vs. standard ETT 48.4 ± 4.9 seconds; P = 0.205) were not significantly different. No adverse effects were observed for either ETT type. Conclusions: Spiral ETT effectively reduces total tube handling time and improves ETT placement accuracy in children using video laryngoscopy.
8.Positive Pressure and Negative Pressure Irrigation Dynamics with Different Needle Designs Using Computational Fluid Dynamics
Nur Farhana Wan ; Nurul Ain Ramlan ; Nik Zarina Nik Mahmood ; Ahmad Hussein Abdul Hamid
Archives of Orofacial Sciences 2023;18(no.2):125-137
This study aimed to investigate the irrigation dynamics of the positive pressure side-vented (SV) needle, EndoVac (micropores) needle and modified apical negative pressure (mANP) open-ended needle using computational fluid dynamics (CFD). A simulation of a prepared root canal (conical frustum) of 15 mm length with an apical diameter of 0.40 mm following Protaper F4 apical preparation was created using three-dimensional (3D) CAD software. The 3D simulated needle of SV 30G needle, EndoVac with micropores needle and mANP, 30G flat open-ended needle were also created. The irrigation dynamics were evaluated through transient CFD simulations. In addition, the irrigation dynamics of mANP at 0.2 mm, 0.5 mm, and 1.0 mm short from the working length were also assessed. The EndoVac and mANP showed negative apical static pressure and streamline patterns able to reach the apical region, thus indicating negligible extrusion. Meanwhile, SV showed positive apical static pressure and almost nonexistent streamlines beyond the needle tip. The SV showed the highest wall shear stress (WSS) magnitude of 1030Pa whereas Endovac (161 Pa) and mANP1 (258 Pa). However, SV revealed lower average WSS (10 Pa) compared to mANP1 (13 Pa) and mANP2 (11 Pa). This is due to SV developed a localised maximum WSS opposite the open vent area only therefore, uneven distribution of WSS. The EndoVac system developed a localised maximum WSS in the pair of micropores furthest away from the apical. CFD analysis of the EndoVac, mANP and SV showed different technique approach, needle design and needle depths insertion affect the irrigation dynamics pattern and magnitude.
9.Osteochondrogenesis with Autologous Peripheral Blood Stem Cells for Osteochondral Lesions of the Talus: Report of Five Cases
Saw KY ; Jee CSY ; Ramlan A ; Dawam A ; Saw YC ; Low SF
Malaysian Orthopaedic Journal 2022;16(No.3):128-131
Osteochondral lesions of the talus (OLTs) may progress to
ankle arthritis needing ankle arthroplasty or arthrodesis. We
report five cases of OLTs treated along the principles
developed for chondrogenesis of the knee joint with
autologous peripheral blood stem cells (PBSCs), resulting in
repair and regeneration of the bone and cartilage
components. Improvement in Ankle Osteoarthritis Scale
(AOS) scores with minimum two years follow-up showed
statistical significance (p < 0.05).
10.Autologous Peripheral Blood Stem Cell Therapy for Chronic Achilles Tendinopathy: Report of Three Cases
Saw KY ; Low SF ; Ramlan A ; Dawam A ; Saw YC ; Jee CSY
Malaysian Orthopaedic Journal 2022;16(No.2):150-154
The treatment of chronic Achilles tendinopathy (CAT)
remains challenging. We report three cases of CAT treated
with autologous peripheral blood stem cells (PBSCs),
following principles developed for chondrogenesis of the
knee joint. Outcome measurement with a minimum of one
and a half years follow-up showed significant improvement
of Victorian Institute of Sport Assessment-Achilles
questionnaire (VISA-A) scores, with reduction of tendon
thickness and inflammation on MRI scan.