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01), with senior physiotherapists attending outpatient clinics (p less then .01). Conclusion A large number of physiotherapists were involved in the delivery of services. Recommended respiratory and exercise treatments were frequently provided; however, other recommended activities occurred infrequently. The impact of increasing age, numbers of patients, and complexity of care may be contributing to demand exceeding supply for physiotherapy services. Future studies are required to determine innovative approaches to address the gaps in clinical practice recommendations.Background. Many different operative options have been used to cover sacral defects. Perforator flap enables wide defect reconstruction with long pedicle and a large arc of rotation while preserving gluteus maximus muscle, but the risk of vessel injury can jeopardize flap survival. Perforator-based flap, the flap transposed without skeletonization of the perforator, requires much experience to be perfect in flap design to achieve tension-free closure. Methods. Fourteen modified parasacral perforator-based flap procedures were carried out on 14 patients. The records of patients at Chungnam National University Hospital from February 2017 to January 2020 were retrospectively reviewed. Results. All 14 flaps survived completely. One patient developed localized hematoma, and another presented with latent seroma. No donor or recipient site dehiscence or recurrence occurred during follow-up. Conclusion. We present our experience of a parasacral perforator-based flap with modified design of bilobed flaps. It could be performed easily and safely with less wound dehiscence and serve as a good practice model for young surgeons to cover small to moderately sized defects.Background High blood pressure is the primary risk factor for cardiovascular death worldwide. Autosomal-dominant hypertension with brachydactyly (HTNB) clinically resembles salt-resistant essential hypertension and causes death by stroke before age 50 years. Recently, we implicated the gene encoding phosphodiesterase 3A (PDE3A); however, in vivo modeling of the genetic defect and thus showing an involvement of mutant PDE3A is lacking. Methods We used genetic mapping, sequencing, transgenic technology, CRISPR-Cas9 gene editing, immunoblotting, and fluorescence resonance energy transfer (FRET). We identified new patients, performed extensive animal phenotyping, and explored new signaling pathways. Results We describe a novel mutation within a 15 bp region of the PDE3A gene and define this segment as mutational hotspot in HTNB. The mutations cause an increase in enzyme activity. A CRISPR/Cas9-generated rat model, with a 9 bp deletion within the hotspot analogous to a human deletion, recapitulates HTNB. In mice, mutant transgenic PDE3A overexpression in smooth muscle cells confirmed that mutant PDE3A causes hypertension. The mutant PDE3A enzymes display consistent changes in their phosphorylation and an increased interaction with the 14-3-3θ adaptor protein. This aberrant signaling is associated with an increase in vascular smooth muscle cell proliferation and changes in vessel morphology and function. Conclusions The mutated PDE3A gene drives mechanisms that increase peripheral vascular resistance causing hypertension. We present two new animal models that will serve to elucidate the underlying mechanisms further. Our findings could facilitate the search for new antihypertensive treatments.Background Kidney allograft resistive index (RI) is prognostic for graft and recipient survivals. Recipient hemodynamics could influence RI. In particular, dialysis arteriovenous fistula (AVF) has been involved in heart function changes, reversible after AVF ligation. Knowledge about AVF and RI is lacking. In this study, we prospectively evaluated RI changes after AVF ligation in kidney transplanted patients. Methods We enrolled 22 stable transplanted patients. Mean RI was measured before AVF ligation (T0), 18 to 24 h (T1) and 6 months (T6) after surgery; mean blood pressure (mBP), heart rate (HR), serum creatinine (sCr), estimated glomerular filtration rate (eGFR), 24 h proteinuria (24 h-P), immunosuppressive drug blood levels (IS) and antihypertensive drugs were also recorded. Results AVF ligation was performed 3.1 years (IQR 2.1-3.8) after transplantation. Median AVF flow (Qa) was 1868 mL/min (IQR 1538-2712) and 8 AVF were classified as high flow (Qa ≥ 2 L/min). negative control At baseline, median sCr was 1.32 mg/dL (IQR 1.04-1.76) and median eGFR was 57.1 mL/min. Median RI was 0.71 at T0, 0.69 at T1, 0.66 at T6. RI reduction at T1 and T6 was statistically significant (p less then 0.05 and p less then 0.001 respectively); in particular, 90.4% of patients had persistently improved values at T6. Furthermore, mBP increased while HR decreased. These changes were independent from sCr, 24 h-P, IS, antihypertensive drugs number, Qa and AVF type. Conclusions AVF ligation improves kidney allograft RI; it may reflect better kidney perfusion.Background and aims Adenoma detection rate (ADR) is a key quality indicator for colonoscopy; however, it is cumbersome to obtain. We investigated if detection rates (DRs) for adenomas, serrated polyps (SPs) and clinically relevant SP (crSPDR) can be accurately estimated by individualized DR ratios (DRRs) in a multicenter primary colonoscopy screening cohort of average-risk individuals.Methods DRRs were calculated by dividing DRs for a certain polyp entity by polyp detection rate (PDR) for each endoscopist individually on the basis of his/her first 50 (DRR50) and 100 (DRR100) consecutive colonoscopies. DRs were estimated for each endoscopist by multiplying his/her DRR for a certain polyp entity with his/her PDR of subsequent colonoscopies in groups of 50 (DRR50) and 100 (DRR100) consecutive colonoscopies. Estimated and actual DRs were compared.Results Estimated DRs showed a strong correlation with actual DRs for adenomas (r = 0.86 and 0.87; each p less then .001), SPs (r = 0.85 and 0.91; each p less then .001) and crSPs (r = 0.82 and 0.86; each p less then .001) using DRRs derived from first 50 and 100 consecutive colonoscopies. Corresponding root mean square error (RMSE) between individual estimated and actual DRs using DRR50 and DRR100 was 5.3(±4.6)% and 4.5(±4.8)% for adenomas, 5.2(±4.1)% and 3.9(±2.8)% for SP, 3.1(±3.1)% and 2.8(±2.5)% for crSP, respectively. RMSE was not significantly different between DRR50 and DRR100 for ADR (p = .445), SPDR (p = .178) and crSP (p = .544).Conclusions DR for all relevant polyp entities can be accurately estimated by using individual DRRs. This approach may enable endoscopists to easily track their performance measures in daily routine.