2.Homozygous mutations in NTRK1 gene underlie congenital insensitivity to pain with anhidrosis in Pakistani families
Humaira Aziz Sawal ; Muhammad Ikram Ullah ; Arsalan Ahmad ; Abdul Nasir ; Ali Amar ; Ejaz A. Khan ; Mamoon Rashid ; Saqib Mahmood ; Peter John ; Wasim Ahmad ; Christian A. Hübner ; Muhammad Jawad Hassan
Neurology Asia 2016;21(2):129-136
Congenital insensitivity to pain with anhidrosis is a rare autosomal recessive disorder presenting
with loss of pain sensation, thermal sensation defects, and self-mutilating behavior. In the present
study, we recruited two consanguineous pedigree showing pain insensitivity symptoms from Pakistan
for clinical and molecular investigations. In family A, one female patient displayed classical CIPA
symptoms along with microcephaly and severe intellectual disability. During course of the disease,
her right foot was amputated and had remarkable dental degeneration and teeth shedding. In family B,
one boy presented with classical symptoms of congenital insensitivity to pain with anhidrosis. Blood
was collected from both families for molecular studies. Sequencing with the Ilumina Trusight One
Sequencing Panel covering 4813 OMIM genes revealed a known homozygous mutation c.2084C>T;
p.P695L of NTRK1 in family A and a novel truncated mutation c.2025C>G; p.Y681X in family B.
Protein modeling analysis of both mutations (p.P695L and p.Y681X) predicted loss of the rigidity in
tyrosine kinase domain of NTRK1 that led to conformational changes as well as deleterious effect on
protein function. The known mutation was reported more than a decade ago in a family from Northern
Israel and other non-sense mutation is newly identified. It is interested that most of NTRK1 mutations
are associated with this domain. This is first ever report of NTRK1 variants in congenital insensitivity
to pain with anhidrosis patients from Pakistan.
Pain Insensitivity, Congenital
3.Increased ERCP volume improves cholangiogram interpretation: a new performance measure for ERCP training?
Shyam VEDANTAM ; Sunil AMIN ; Ben MAHER ; Saqib AHMAD ; Shanil KADIR ; Saad Khalid NIAZ ; Mark WRIGHT ; Nadeem TEHAMI
Clinical Endoscopy 2022;55(3):426-433
Background/Aims:
Cholangiogram interpretation is not used as a key performance indicator (KPI) of endoscopic retrograde cholangiopancreatography (ERCP) training, and national societies recommend different minimum numbers per annum to maintain competence. This study aimed to determine the relationship between correct ERCP cholangiogram interpretation and experience.
Methods:
One hundred fifty ERCPists were surveyed to appropriately interpret ERCP cholangiographic findings. There were three groups of 50 participants each: “Trainees,” “Consultants group 1” (performed >75 ERCPs per year), and “Consultants group 2” (performed >100 ERCPs per year).
Results:
Trainees was inferior to Consultants groups 1 and 2 in identifying all findings except choledocholithiasis outside the intrahepatic duct on the initial or completion/occlusion cholangiogram. Consultants group 1 was inferior to Consultants group 2 in identifying Strasberg type A bile leaks (odds ratio [OR], 0.86; 95% confidence interval [CI], 0.77–0.96), Strasberg type B (OR, 0.84; 95% CI, 0.74–0.95), and Bismuth type 2 hilar strictures (OR, 0.81; 95% CI, 0.69–0.95).
Conclusions
This investigation supports the notion that cholangiogram interpretation improves with increased annual ERCP case volumes. Thus, a higher annual volume of procedures performed may improve the ability to correctly interpret particularly difficult findings. Cholangiogram interpretation, in addition to bile duct cannulation, could be considered as another KPI of ERCP training.
4.Blepharophimosis Ptosis Epicanthus Inversus Syndrome (BPES) type 1 in an Indian Family
Abhinav Kumar Gupta ; Deepak Chand Gupta ; Saqib Ahmad Khan ; Syed Mohd Razi
Journal of the ASEAN Federation of Endocrine Societies 2017;32(1):68-71
Blepharophimosis ptosis epicanthus inversus (BPES) is a relatively rare congenital disorder, which usually presents with classical eye manifestations. In some cases, it is associated with premature ovarian failure (POF). BPES is of two types, type I and type II. Type I is associated with POF along with eyelid malformations, while Type 2 has only eyelid malformations. Here, we report a family of BPES, in whom two sisters presented with secondary amenorrhea. On eye examination, they have blepharophimosis, ptosis, epicanthus inversus and telecanthus. Investigations revealed hypergonadotropic hypogonadism. Their father also has similar eye manifestations. Diagnosis of BPES type I was made and both were started on hormone replacement therapy. To make timely diagnosis of BPES, every patient with POF should specifically be checked for eye manifestations.
Blepharophimosis, Ptosis, and Epicanthus Inversus
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Blepharophimosis