2.Multimodal Intraoperative Neurophysiological Monitoring in Spine Surgeries: The Experience at a Spine Centre through Years
Deepak RAJAPPA ; Mohd Mazhar KHAN ; Dheeraj MASAPU ; Ravi MANCHALA ; Satish RUDRAPPA ; Swaroop GOPAL ; Ramachandran GOVINDASAMY ; Sunil Kumar HORASUKU
Asian Spine Journal 2021;15(6):728-738
Methods:
This retrospective study was performed on 408 patients who had undergone spine surgeries with IONM during April 2014 to March 2020 at a single center. The operative report, anesthesia record, and IONM were reviewed. All the patients were reassessed for postoperative neurological deficits in the postoperative period and followed up based on the intraoperative findings and neurological deficits for 4 weeks. Signal changes in IONM were reviewed, and the obtained results were further categorized into true positive, true negative, false positive, or false negative. If changes were observed during the IONM, the patients were managed as per the algorithm.
Results:
Of the 408 patients being monitored continuously during the intraoperative period, 38 showed changes in recordings, 28 developed postoperative neurological deficits, and one developed neurological deficit without any change in the IONM. Nine patients had transient neurological deficits, and the other 20 had permanent neurological deficits. Overall, the multimodal IONM used in our study had a sensitivity of 96.6%, specificity of 97.4%, a positive predictive value of 73.7%, and a negative predictive value of 99.7%.
Conclusions
Use of decision algorithm and multimodal neuromonitoring consisting of motor evoked potentials, somatosensory evoked potentials, and electromyography complement each other in the detection of neurological injury during the course the surgery, improve intraoperative care, and prevent further damage and morbidity in patients.
3. Screening outcomes of household contacts of multidrug-resistant tuberculosis patients in Peshawar, Pakistan
Arshad JAVAID ; Anila BASIT ; Arshad JAVAID ; Mazhar Ali KHAN ; Sumaira MEHREEN ; Anila BASIT ; Muhammad IHTESHAM ; Irfan ULLAH ; Afsar KHAN ; Ubaid ULLAH ; Mir Azam KHAN ; Raza Ali KHAN
Asian Pacific Journal of Tropical Medicine 2016;9(9):909-912
Objective To assess the profile of TB/multidrug-resistant TB (MDR-TB) among household contacts of MDR-TB patients. Methods Close contacts of MDR-TB patients were traced in the cross-sectional study. Different clinical, radiological and bacteriological were performed to rule out the evidence of TB/MDR-TB. Results Between January 2012 and December 2012, a total of 200 index MDR-TB patients were initiated on MDR-TB treatment, out of which home visit and contacts screening were conducted for 154 index cases. Of 610 contacts who could be studied, 41 (17.4%) were diagnosed with MDR-TB and 10 (4.2%) had TB. The most common symptoms observed were cough, chest pain and fever. Conclusions The high incidence of MDR-TB among close contacts emphasize the need for effective contact screening programme of index MDR-TB cases in order to cut the chain of transmission of this disease.
4. Molecular detection of Leishmania species in human and animals from cutaneous leishmaniasis endemic areas of Waziristan, Khyber Pakhtunkhwa, Pakistan
Mubashir HUSSAIN ; Shahzad MUNIR ; Taj Ali KHAN ; Niaz Ullah MUHAMMAD ; Bahar KHATTAK ; Abdullah KHAN ; Humaira MAZHAR ; Maira RIAZ ; Shahzad MUNIR ; Nawaz Haider BASHIR ; Abdullah JALAL ; Irfan AHMED ; Zulqarnain BALOCH ; Muhammad Ameen JAMAL ; Kashif RAHIM ; Noha WATANY
Asian Pacific Journal of Tropical Medicine 2018;11(8):495-500
Objectives: To detect Leishmania species in human patients, animal reservoirs and Phlebotomus sandflies in Waziristan, Pakistan. Methods: Tissue smears and aspirates from 448 cutaneous leishmaniasis (CL) suspected patients were analyzed. To sort out role of the reservoir hosts, skin scrapings, spleen and liver samples from 104 rodents were collected. Furthermore, buffy coat samples were obtained from 60 domestic animals. Sandflies were also trapped. All human, animals and sandfly samples were tested by microscopy, kinetoplastic PCR and internal transcribed spacer 1 (ITS1) PCR followed by restriction fragment length polymorphism for detection of Leishmania species. Results: An overall prevalence of 3.83% and 5.21% through microscopy and ITS1 PCR respectively was found. However, the statistically non-significant correlation was found between area, gender, and number of lesions. The presence of rodents, sandflies, domestic animals and internally displaced people increased the risk of CL. Using ITS1-PCR-RFLP, Leishmania tropica (L. tropica) was confirmed in 106 samples while 25 of the isolates were diagnosed as Leishmania major (L. major). Similarly, 3/104 rodents were positive for L. major and 14 pools of DNA samples containing Phlebotomus sergenti sandflies were positive for L. tropica. None of samples from domestic animals were positive for leishmaniasis. Conclusions: In the present study, L. tropica and L. major are found to be the main causative agents of CL in study area. Movement of internally displaced people from CL endemic areas presents a risk for nearby CL free areas. To the best of our knowledge, we report for the first time L. major infection in rodents (Rattus rattus) and L. tropica in Phlebotomus sergenti sandflies trapped in Waziristan, Pakistan.
5. First report on molecular characterization of Leishmania species from cutaneous leishmaniasis patients in southern Khyber Pakhtunkhwa province of Pakistan
Mubbashir HUSSAIN ; Bahar Ullah KHATTAK ; Taj Ali KHAN ; Niaz MUHAMMAD ; Muhammad ANEES ; Hazir RAHMAN ; Muhammad QASIM ; Humaira MAZHAR ; Shahzad MUNIR ; Sultan AYAZ ; Muhammad Ameen JAMAL ; Irfan AHMED ; Kashif RAHIM ; Noha WATANAY ; Mohamed KASBARI
Asian Pacific Journal of Tropical Medicine 2017;10(7):718-721
Objective To report presence of Leishmania major in Khyber Pakhtunkhwa of Pakistan, where cutaneous leishmaniasis (CL) is endemic and was thought to be caused by Leishmania tropica only. Methods Biopsy samples from 432 CL suspected patients were collected from 3 southern districts of Khyber Pakhtunkhwa during years 2011–2016. Microscopy on Giemsa stained slides were done followed by amplification of the ribosomal internal transcribed spacer 1 gene. Results Leishmania amastigotes were detected by microscopy in 308 of 432 samples (71.3%) while 374 out of 432 samples (86.6%) were positive by ribosomal internal transcribed spacer 1 PCR. Subsequent restriction fragment length polymorphism confirmed L. tropica in 351 and L. major in 6 biopsy samples. Conclusions This study is the first molecular characterization of Leishmania species in southern Khyber Pakhtunkhwa. It confirmed the previous assumptions that anthroponotic CL is the major CL form present in Khyber Pakhtunkhwa province. Furthermore, this is the first report of L. major from a classical anthroponotic CL endemic focus identified in rural areas of Kohat district in southern Khyber Pakhtunkhwa.
6.A recurrent homozygous missense mutation in CCDC103 causes asthenoteratozoospermia due to disorganized dynein arms.
Muhammad ZUBAIR ; Ranjha KHAN ; Ao MA ; Uzma HAMEED ; Mazhar KHAN ; Tanveer ABBAS ; Riaz AHMAD ; Jian-Teng ZHOU ; Wasim SHAH ; Ansar HUSSAIN ; Nisar AHMED ; Ihsan KHAN ; Khalid KHAN ; Yuan-Wei ZHANG ; Huan ZHANG ; Li-Min WU ; Qing-Hua SHI
Asian Journal of Andrology 2022;24(3):255-259
Asthenoteratozoospermia is one of the most severe types of qualitative sperm defects. Most cases are due to mutations in genes encoding the components of sperm flagella, which have an ultrastructure similar to that of motile cilia. Coiled-coil domain containing 103 (CCDC103) is an outer dynein arm assembly factor, and pathogenic variants of CCDC103 cause primary ciliary dyskinesia (PCD). However, whether CCDC103 pathogenic variants cause severe asthenoteratozoospermia has yet to be determined. Whole-exome sequencing (WES) was performed for two individuals with nonsyndromic asthenoteratozoospermia in a consanguineous family. A homozygous CCDC103 variant segregating recessively with an infertility phenotype was identified (ENST00000035776.2, c.461A>C, p.His154Pro). CCDC103 p.His154Pro was previously reported as a high prevalence mutation causing PCD, though the reproductive phenotype of these PCD individuals is unknown. Transmission electron microscopy (TEM) of affected individuals' spermatozoa showed that the mid-piece was severely damaged with disorganized dynein arms, similar to the abnormal ultrastructure of respiratory ciliary of PCD individuals with the same mutation. Thus, our findings expand the phenotype spectrum of CCDC103 p.His154Pro as a novel pathogenic gene for nonsyndromic asthenospermia.
Asthenozoospermia/pathology*
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Dyneins/genetics*
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Homozygote
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Humans
;
Male
;
Microtubule-Associated Proteins
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Mutation
;
Mutation, Missense
;
Sperm Tail/metabolism*